阅读说明：本技术 超前止水后浇带施工方法 (Construction method of advanced water stop post-cast strip ) 是由 劳月清 王忠炫 祝晓伟 潘角香 徐晋 于 2020-12-22 设计创作，主要内容包括：本发明涉及一种超前止水后浇带施工方法,该方案包括通过先进行施工准备；进行超前止水外墙浇筑；布设支撑结构；浇筑板底垫层；浇筑超前止水底板；浇筑外墙后浇带；浇筑底板后浇带,通过上述步骤有效地降低了墙体后浇带施工的难度,同时可显著改善超前止水板的布设质量。(The invention relates to a construction method of an advanced water stop post-cast strip, which comprises the following steps of firstly, carrying out construction preparation; performing advanced water-stopping outer wall pouring; laying a support structure; pouring a bottom cushion layer of the slab; pouring an advanced water stop bottom plate; pouring an outer wall post-cast strip; the floor post-cast strip is poured, the difficulty of wall post-cast strip construction is effectively reduced through the steps, and meanwhile the laying quality of the advanced water stop plate can be obviously improved.)

1. The construction method of the advanced water stop post-cast strip is characterized by comprising the following steps:

excavating and constructing soil bodies inside the foundation pit and constructing foundation pit supporting piles;

performing advanced water-stopping outer wall pouring, and constructing an outer wall waterproof layer along the laying direction of the foundation pit support piles;

arranging an outer wall stirrup, an outer wall longitudinal bar and a water stop plate positioning frame outside the outer wall waterproof layer;

a plurality of water stop plate positioning ribs are arranged in the water stop plate positioning frame;

installing a first joint filling body and a second joint filling body at the designed joint position of the outer wall concrete, and separating the first joint filling body from the second joint filling body by installing an advanced water stop plate;

installing a wall mold support frame, and installing and fixing a wall body outer mold and a plurality of groove mold support blocks on the wall mold support frame;

laying the closing rib net on the outer surface of the wall slot die;

arranging a plurality of wall embedded bolts on the side of the wall slot die facing the outer wall concrete;

a plurality of wall model position control bolts are arranged between the groove model supporting block and the wall body groove model;

performing concrete pouring construction on the outer wall;

after the outer wall concrete forms strength, removing the wall film support frame, the wall outer mold and the wall groove mold;

mounting a support structure at the post-cast strip of the outer wall;

pouring a slab bottom cushion layer, and performing waterproof optimization through the slab bottom cushion layer;

pouring an advanced water stop bottom plate, and laying a bottom plate stirrup, a bottom plate longitudinal bar and a water stop plate positioning frame at a post-pouring belt of the bottom plate of the basement after the bottom cushion layer of the bottom plate has formed strength;

mounting a third joint filling body and a fourth joint filling body at the designed joint position of the basement bottom plate, and separating the third joint filling body from the fourth joint filling body by mounting an advanced water stop plate;

installing a plurality of plate mold position control bolts towards the basement bottom plate on the supporting structure, and enabling each plate mold position control bolt to be fixedly welded with the bottom plate groove mold;

laying a closing rib net on the outer wall of the bottom plate groove die;

arranging a plurality of bottom plate embedded bolts on the side of the bottom plate groove mold facing the basement bottom plate;

the positioning bolt is arranged on the bottom plate embedded bolt through the mounting plate mold and is matched with the fixed bottom plate groove mold;

mounting a cover plate connecting bolt and a closed cover plate on the supporting structure to fix the bottom plate groove mold;

carrying out concrete pouring construction on the basement bottom plate;

pouring the outer wall post-cast strip;

and pouring the bottom plate post-cast strip.

2. The construction method of the advanced water stop post-cast strip according to claim 1, wherein the water stop plate positioning frame comprises a frame top transverse rib, a frame bottom transverse rib and an inclined connecting rib, the frame top transverse rib, the frame bottom transverse rib and the inclined connecting rib form a region for mounting the advanced water stop plate, one end of the water stop plate positioning rib is fixedly welded with the frame top transverse rib or the frame bottom transverse rib, and the other end of the water stop plate positioning rib is fixedly welded with the advanced water stop plate.

3. The construction method of the advanced water stop post-cast strip according to claim 1, wherein the first joint filling body and the second joint filling body are both made of waterproof coiled materials or rubber plate materials, and the thickness of the second joint filling body is at least 2-3 times of that of the first joint filling body.

4. The construction method of the advanced water-stop post-cast strip according to claim 1, wherein one end of the first joint filling body is connected with the waterproof layer of the outer wall in a sticking mode, the other end of the first joint filling body is connected with the advanced water-stop plate in a sticking mode, one end of the second joint filling body is connected with the advanced water-stop plate in a sticking mode, and the other end of the second joint filling body is flush with the outer surface of the closing-up rib net.

5. An advanced water-stop post-cast strip construction method as claimed in claim 1, wherein the bottom plate groove molds vertical to both sides are vertically welded with the groove pressing mold at the bottom, and pressing mold convex tenons with isosceles trapezoid cross sections are uniformly arranged on the groove pressing mold at intervals.

6. An advanced water-stop post-cast strip construction method as claimed in claim 1, wherein the closed cover plate is provided with a cover plate water drain hole and a hole for a cover plate connecting bolt to pass through, and a plate bottom drain is provided on the lower surface of the closed cover plate.

7. The construction method of the advanced water stop post-cast strip according to claim 1, wherein the supporting structure comprises a first supporting plate chute and a second supporting plate chute which are arranged on the free surface of the wall post-cast strip and a beam connecting plate which is arranged at the position of the outer wall concrete post-cast strip, the first supporting plate chute and the second supporting plate chute are fixedly connected with the outer wall concrete through a plurality of chute anchor bars respectively, and a supporting beam is welded on the beam connecting plate.

8. The construction method of the advanced water stop post-cast strip according to claim 7, wherein the step of pouring the outer wall post-cast strip comprises the following steps: welding a first sliding support plate on a wall mould inner connecting plate at the inner side of the disassembly-free wall mould; welding a second sliding support plate on the first sliding support plate to ensure that the two sliding support plates are vertical to each other; and the first sliding support plate and the second sliding support plate are respectively matched and connected with the support plate connecting grooves of the first support plate sliding groove and the second support plate sliding groove.

9. The construction method of the advanced water stop post-cast strip according to claim 8, wherein the disassembly-free wall membranes are arranged in an up-and-down splicing manner and are fixed through a wall formwork fastening bolt and a wall formwork fastening plate, so that the guide airtight plate is matched with the template airtight body in the guide plate connecting groove, and the up-and-down sealing matching of the disassembly-free wall membranes is realized.

10. The construction method of the advanced water stop post-cast strip according to any one of claims 1 to 9, wherein the floor post-cast strip pouring step comprises:

the bottom plate reinforcing ribs are connected with the bottom plate embedded bolts;

carrying out bottom plate post-cast strip concrete pouring construction;

and a bottom plate connecting tenon is formed on the lower surface of the bottom plate post-cast strip.

Technical Field

The invention relates to the technical field of buildings, in particular to a construction method of an advanced water stop post-cast strip.

Background

In order to prevent the cast-in-place reinforced concrete structure from being damaged due to the uneven self shrinkage or uneven settlement, concrete belts are usually reserved at corresponding positions of a foundation slab, a wall and a beam. In the prior art, in order to avoid the adverse factors, in the actual engineering, a 30-40 mm wide telescopic concrete bottom plate or guide wall is added at the position of the foundation bottom plate and the post-cast strip of the outer wall, and the expansion joint is provided with a rubber water stop. However, compared with the conventional concrete structure, the post-cast strip concrete pouring requires more than 60 days for the time to be poured, so that obvious joints of new and old concrete exist, and the later water stopping effect is difficult to guarantee.

Among the prior art, there has been a bottom plate advance stagnant water post-cast strip structure, including the concrete cushion, concrete cushion upper portion is equipped with soleplate, the soleplate downside is equipped with lower floor's reinforcing bar net piece, is formed with the expansion joint through the wire net in the inside vertical direction of soleplate, is connected with the waterstop through the wire net in soleplate, and soleplate and post-cast strip upside are equipped with the coating. The connecting rib nets are arranged at the seams, so that the interface connection strength can be improved to a certain degree, but the technical problems of uniform laying of the rib nets, structural connection strength enhancement, accurate positioning of water stop plates and the like cannot be synchronously solved by the technology.

In view of this, in order to improve the construction quality of the advanced water stop post-cast strip, the invention of the construction method of the advanced water stop post-cast strip, which can reduce the construction difficulty of the floor post-cast strip and the wall post-cast strip and improve the arrangement quality of the advanced water stop plate, is urgently needed.

Disclosure of Invention

The invention aims to provide a construction method of an advanced water-stop post-cast strip, aiming at the problems in the prior art.

In order to realize the purpose of the invention, the invention adopts the following technical scheme: a construction method of an advanced water stop post-cast strip comprises the following steps:

s1: excavating and constructing soil bodies inside the foundation pit and constructing foundation pit supporting piles;

s2: performing advanced water-stopping outer wall pouring, and constructing an outer wall waterproof layer along the laying direction of the foundation pit support piles;

s210: arranging an outer wall stirrup, an outer wall longitudinal bar and a water stop plate positioning frame outside the outer wall waterproof layer;

s211: a plurality of water stop plate positioning ribs are arranged in the water stop plate positioning frame;

s212: installing a first joint filling body and a second joint filling body at the designed joint position of the outer wall concrete, and separating the first joint filling body from the second joint filling body by installing an advanced water stop plate;

s213: installing a wall mold support frame, and installing and fixing a wall body outer mold and a plurality of groove mold support blocks on the wall mold support frame;

s214: laying the closing rib net on the outer surface of the wall slot die;

s215: arranging a plurality of wall embedded bolts on the side of the wall slot die facing the outer wall concrete;

s216: a plurality of wall model position control bolts are arranged between the groove model supporting block and the wall body groove model;

s217: performing concrete pouring construction on the outer wall;

s218: after the outer wall concrete forms strength, removing the wall film support frame, the wall outer mold and the wall groove mold;

s3: mounting a support structure at the post-cast strip of the outer wall;

s4: pouring a slab bottom cushion layer, and performing waterproof optimization through the slab bottom cushion layer;

s5: pouring an advanced water stop bottom plate, and laying a bottom plate stirrup, a bottom plate longitudinal bar and a water stop plate positioning frame at a post-pouring belt of the bottom plate of the basement after the bottom cushion layer of the bottom plate has formed strength;

s510: mounting a third joint filling body and a fourth joint filling body at the designed joint position of the basement bottom plate, and separating the third joint filling body from the fourth joint filling body by mounting an advanced water stop plate;

s511: installing a plurality of plate mold position control bolts towards the basement bottom plate on the supporting structure, and enabling each plate mold position control bolt to be fixedly welded with the bottom plate groove mold;

s512: laying a closing rib net on the outer wall of the bottom plate groove die;

s513: arranging a plurality of bottom plate embedded bolts on the side of the bottom plate groove mold facing the basement bottom plate;

s514: the positioning bolt is arranged on the bottom plate embedded bolt through the mounting plate mold and is matched with the fixed bottom plate groove mold;

s515: mounting a cover plate connecting bolt and a closed cover plate on the supporting structure to fix the bottom plate groove mold;

s516: carrying out concrete pouring construction on the basement bottom plate;

s6: pouring the outer wall post-cast strip;

s7: and pouring the bottom plate post-cast strip.

The working principle and the beneficial effects are as follows: 1. the spatial position of the advanced water stop plate can be accurately controlled through the water stop plate positioning ribs on the water stop plate positioning ribs, so that the positioning accuracy of the advanced water stop plate is improved;

2. the closing-up rib net is connected with the wall body groove mold in advance, and the position of the wall body groove mold can be limited through wall mold position control bolts arranged outside the groove mold supporting block in pairs, so that the connecting strength of the closing-up rib net and the outer wall concrete is effectively improved, and the supporting difficulty of the wall body groove mold is obviously reduced;

3. the supporting structure is arranged at the position of the concrete post-cast strip of the outer wall, and the construction difficulty of subsequent facilities is reduced by means of the space position formed by the structure;

4. the waterproof performance can be obviously improved by optimizing the waterproof performance of the bottom cushion layer of the plate.

5. The sealing cover plate and the bottom plate groove die are synchronously arranged, and open water on the surface of the sealing cover plate can be collected through the plate bottom drainage ditch, so that external sundries and water bodies can be prevented from entering a cavity formed by the bottom plate groove die and the sealing cover plate in an enclosing mode.

Further, the water stop plate positioning frame comprises a frame top transverse rib, a frame bottom transverse rib and an oblique connecting rib, the frame top transverse rib, the frame bottom transverse rib and the oblique connecting rib form a region for mounting the advanced water stop plate, one end of the water stop plate positioning rib is welded and fixed with the frame top transverse rib or the frame bottom transverse rib, and the other end of the water stop plate positioning rib is welded and fixed with the advanced water stop plate.

Furthermore, the first joint filling body and the second joint filling body are both made of waterproof coiled materials or rubber plate materials, and the thickness of the second joint filling body is at least 2-3 times of that of the first joint filling body.

Furthermore, one end of the first joint filling body is connected with the outer wall waterproof layer in a sticking mode, the other end of the first joint filling body is connected with the leading water stop plate in a sticking mode, one end of the second joint filling body is connected with the leading water stop plate in a sticking mode, and the other end of the second joint filling body is flush with the outer surface of the closing-up rib net.

Furthermore, both sides are vertical the perpendicular welded connection of bottom plate slot die and the recess moulding-die of bottom, just even interval is provided with the moulding-die tenon that the cross section is isosceles trapezoid on the recess moulding-die.

Furthermore, the closed cover plate is provided with a cover plate drain hole and a hole for the cover plate connecting bolt to pass through, and the lower surface of the closed cover plate is provided with a plate bottom drain ditch.

Further, bearing structure is including locating wall body post-cast strip face first fagging spout and second fagging spout on the empty face and locate outer wall concrete post-cast strip position the even board of crossbeam, first fagging spout and second fagging spout are equallyd divide and are do not linked firmly with outer wall concrete through a plurality of spout anchor bars, the welding has supporting beam on the even board of crossbeam.

Further, the step of pouring the post-cast strip of the outer wall comprises the following steps: welding a first sliding support plate on a wall mould inner connecting plate at the inner side of the disassembly-free wall mould; s610, welding a second sliding support plate on the first sliding support plate to enable the two sliding support plates to be perpendicular to each other; s611, the first sliding support plate and the second sliding support plate are connected with the support plate connecting grooves of the first support plate sliding groove and the second support plate sliding groove in a matched mode. The laying position of the disassembly-free wall mold is controlled through the first sliding support plate and the second sliding support plate, the guide airtight plate is tightly connected with the template airtight body in the guide plate connecting groove through the wall mold fastening bolt, the difficulty of pouring construction of a wall post-cast strip can be effectively reduced, and the connection performance of the disassembly-free wall mold is improved.

Furthermore, exempt from to dismantle wall membrane is concatenation setting from top to bottom to fix through wall mould fastening bolt and wall mould mounting plate, make the template obturator cooperation in direction obturator and the baffle spread groove, two sealed cooperations of exempting from to dismantle wall membrane about realizing.

Further, the bottom plate post-cast strip pouring step comprises the following steps:

s710: the bottom plate reinforcing ribs are connected with the bottom plate embedded bolts;

s711: carrying out bottom plate post-cast strip concrete pouring construction;

s712: and a bottom plate connecting tenon is formed on the lower surface of the bottom plate post-cast strip.

Drawings

FIG. 1 is a construction flow diagram of one embodiment of an advanced water stop post-cast strip of the present invention;

FIG. 2 is a schematic view of the leading water stop outer wall casting structure in FIG. 1;

FIG. 3 is a schematic view of the support beam layout structure of FIG. 1;

fig. 4 is a schematic cross-sectional view of the first and second spreader plate slots of fig. 3;

FIG. 5 is a schematic view of a slab bottom mat casting structure of FIG. 1;

FIG. 6 is a schematic view of the leading water stop bottom plate pouring structure in FIG. 1;

FIG. 7 is a schematic view of the post-cast strip casting structure of the outer wall in FIG. 1;

FIG. 8 is a schematic view of the disassembly-free wall form connection structure of FIG. 7;

fig. 9 is a schematic view of a floor strip casting arrangement of fig. 1.

In the figure, 1, a foundation pit support pile; 2. post-pouring a belt on the outer wall; 3. an outer wall waterproof layer; 4. an outer wall stirrup; 5. outer wall longitudinal ribs; 6. a water stop plate positioning frame; 7. a water stop plate positioning rib; 8. a leading water stop plate; 9. concrete for the outer wall; 10. a first caulking body; 11. a second caulking body; 12. wall form bracing frame; 13. a wall body outer mold; 14. a slot die bracing block; 15. closing the rib net; 16. wall slot die; 17. embedding bolts in the wall body; 18. a wall form position control bolt; 19. post-pouring a belt on the wall; 20. a first supporting plate chute; 21. a second supporting plate sliding groove; 22. a chute anchor bar; 23. a beam connecting plate; 24. connecting plate anchor bars; 25. a support beam; 26. a foundation soil body; 27. a compression molding position control rod; 28. the end of the position control rod is hinged; 29. a strut press plate; 30. trapezoidal die pressing; 31. a waterproof layer of the bottom plate; 32. a bottom plate cushion layer; 33. a basement floor; 34. a base plate stirrup; 35. longitudinal ribs of the bottom plate; 36. a third caulking body; 37. a fourth caulking body; 38. a plate mold position control bolt; 39. a bottom plate slot die; 40. pre-embedding bolts on the bottom plate; 41. a groove die fastening bolt; 42. a cover plate connecting bolt; 43. closing the cover plate; 44. the wall form is not disassembled; 45. connecting plates in the wall mould; 46. a first sliding support plate; 47. a second sliding support plate; 48. connecting a supporting plate; 49. a supporting plate connecting groove; 50. wall mold fastening bolts; 51. a wall form fastening plate; 52. a guide airtight plate; 53. a guide plate connecting groove; 54. a template obturator; 55. reinforcing ribs of the bottom plate; 56. bottom plate post-cast strip; 57. the bottom plate is connected with a falcon; 58. a transverse bar at the top of the frame; 59. a frame bottom transverse bar; 60. connecting the ribs in an inclined manner; 61. the end of the position control bolt is hinged; 62. wall form pressing plates; 63. a chute ear plate; 64. pressing a groove; 65. pressing and extruding tenons; 66. a cover plate drain hole; 67. a plate bottom drainage ditch; 68. connecting the sealing strips 1.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.

It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, the above terms should not be construed as limiting the present invention.

Fig. 1 is a construction flow chart of the advanced water-stop post-cast strip of the invention, and referring to fig. 1, the construction method of the advanced water-stop post-cast strip comprises the following construction steps:

s1, construction preparation: carrying out excavation construction on a foundation pit supporting pile 1 and a foundation pit internal soil body, and preparing materials and devices required by construction, wherein the pit supporting pile 1 adopts a cement mixing pile;

s2, pouring an advanced water-stopping outer wall: paving an outer wall waterproof layer 3 at the position of the outer wall post-cast strip 2 along the height direction of the foundation pit support pile 1, and enabling the outer wall waterproof layer 3 to be connected with the foundation pit support pile 1 in a sticking manner; arranging an outer wall stirrup 4 and an outer wall longitudinal bar 5, welding and connecting a water stop plate positioning frame 6 with the connected outer wall stirrup 4 and the outer wall longitudinal bar 5, and correcting the spatial position of an advanced water stop plate 8 by adopting a water stop plate positioning bar 7; arranging a first joint filling body 10 and a second joint filling body 11 at the joint part of the outer wall concrete 9, and separating the first joint filling body 10 and the second joint filling body 11 through a leading water stop plate 8; the positions of the wall external mold 13 and the groove mold supporting block 14 are limited by the wall mold supporting frame 12; firstly, laying a binding off rib net 15 on the outer surface of a wall body groove mould 16, arranging a wall body pre-embedded bolt 17 on the side, facing the outer wall concrete 9, of the wall body groove mould 16, limiting the position of the wall body groove mould 16 through a wall mould position control bolt 18, and then adopting external concrete pouring equipment to carry out pouring construction on the outer wall concrete 9; the outer wall post-cast strip 2 is made of reinforced concrete materials, the concrete strength grade is C35, the outer wall waterproof layer 3 is made of geomembrane with the thickness of 2mm, the outer wall stirrups 4 are made of threaded steel bars with the diameter of 10mm, and the outer wall longitudinal bars 5 are made of threaded steel bars with the diameter of 25 mm.

S3 supporting beam layout: after the outer wall concrete 9 is formed with strength, the restriction of the wall outer mold 13 and the groove mold supporting block 14 by the wall mold supporting frame 12 is removed, and the wall outer mold 13 and the wall groove mold 16 are removed; arranging a first supporting plate sliding groove 20 and a second supporting plate sliding groove 21 on the free surface of the wall post-cast strip 19, and firmly connecting the first supporting plate sliding groove 20 and the second supporting plate sliding groove 21 with the outer wall concrete 9 through sliding groove anchor bars 22; a beam connecting plate 23 is arranged at the rear pouring belt part of the outer wall concrete 9, and the beam connecting plate 23 is firmly connected with the outer wall concrete 9 through a connecting plate anchor bar 24; welding a supporting beam 25 on the beam connecting plate 23;

s4, pouring a slab bottom cushion layer: three surfaces of the supporting beam 25 facing the foundation soil body 26 are respectively provided with a compression mould position control rod 27, so that two ends of the compression mould position control rod 27 are connected with the supporting beam 25 and a supporting rod pressing plate 29 through a position control rod end hinge 28; the brace pressing plate 29 is adhered or welded with the trapezoidal pressing die 30, and the bottom plate waterproof layer 31 is adhered to the lower surface of the trapezoidal pressing die 30; firstly, grouting from one side edge of the trapezoidal pressing die 30 to a gap between the trapezoidal pressing die 30 and the foundation soil body 26 by adopting external grouting equipment, and constructing a bottom plate cushion layer 32 in other areas above the foundation soil body 26 when slurry overflows from the other side edge;

s5, pouring an advanced water stop bottom plate: after the bottom plate cushion layer 32 forms the strength, the trapezoidal pressing die 30 is removed; arranging a bottom plate hoop bar 34 and a bottom plate longitudinal bar 35 at the rear pouring belt position of the basement bottom plate 33, welding and connecting the water stop plate positioning frame 6 with the connected bottom plate hoop bar 34 and the bottom plate longitudinal bar 35, and correcting the spatial position of the advanced water stop plate 8 through the water stop plate positioning bar 7; arranging a third caulking body 36 and a fourth caulking body 37 at the joint part of the basement bottom plate 33, and separating the third caulking body 36 and the fourth caulking body 37 by a leading water stop plate 8; a plate mold position control bolt 38 is arranged on the supporting beam 25 in the direction facing the basement bottom plate 33, and the plate mold position control bolt 38 is vertically welded and connected with a bottom plate groove mold 39; firstly, laying the closing rib net 15 on the outer surface of a bottom plate groove die 39, arranging bottom plate embedded bolts 40 on the two vertical bottom plate groove dies 39 facing to the basement bottom plate 33 side, limiting the positions of the bottom plate groove dies 39 through plate die position control bolts 38, limiting the transverse positions of the bottom plate groove dies 39 through groove die fastening bolts 41, and tightly connecting a closed cover plate 43 with the bottom plate groove dies 39 through a cover plate connecting bolt 42 on the top surface of the supporting beam 25; then, adopting external concrete pouring equipment to perform concrete pouring construction of the basement bottom plate 33;

s6, pouring the outer wall post-cast strip: welding a first sliding support plate 46 on a wall mould inner connecting plate 45 at the inner side of the disassembly-free wall mould 44, and vertically welding a second sliding support plate 47 with the first sliding support plate 46; connecting the supporting plate connecting plate 48 at the end parts of the first supporting plate 46 and the second supporting plate 47 with the supporting plate connecting groove 49 of the first supporting plate chute 20 and the second supporting plate chute 21 respectively, and applying fastening force to the wall mold fastening plate 51 on the outer side wall of the disassembly-free wall mold 44 connected up and down through the wall mold fastening bolt 50 to ensure that the guide closing plate 52 is tightly connected with the template closing body 54 in the guide plate connecting groove 53;

s7, pouring a bottom plate post-cast strip: the bottom plate reinforcing ribs 55 are firmly connected with the bottom plate embedded bolts 40, then the bottom plate post-cast strip 56 is subjected to concrete pouring construction, and bottom plate connecting tenons 57 are formed on the lower surface of the bottom plate post-cast strip 56.

Fig. 2 is a schematic view of a pouring structure of an advanced water stop outer wall in fig. 1, fig. 3 is a schematic view of a laying structure of a supporting beam in fig. 1, fig. 4 is a schematic view of cross sections of a first supporting plate sliding groove and a second supporting plate sliding groove in fig. 3, fig. 5 is a schematic view of a pouring structure of a plate bottom cushion layer in fig. 1, fig. 6 is a schematic view of a pouring structure of an advanced water stop bottom plate in fig. 1, fig. 7 is a schematic view of a pouring structure of an outer wall post-cast strip in fig. 1, fig. 8 is a schematic view of a connecting structure of a disassembly-free. Referring to fig. 2 to 9, in the advanced water stop post-cast strip and the construction method, the spatial position of an advanced water stop plate 8 is accurately controlled by a water stop plate positioning rib 7 on a water stop plate positioning rib 7; connecting the closing rib net 15 with a wall groove mold 16 in advance, and limiting the position of the wall groove mold 16 through wall mold position control bolts 18 which are arranged in pairs outside the groove mold supporting block 14; a supporting beam 25 is arranged between the opposite outer wall concrete 9, and the spatial positions of the trapezoidal pressing die 30 and the bottom plate groove die 39 can be limited by the supporting beam 25; at the position of the bottom plate post-cast strip 56, the position of a bottom plate waterproof layer 31 is limited by adopting a trapezoidal pressing die 30, and a bottom plate cushion layer 32 can be formed in a single-side grouting mode; the closed cover plate 43 and the bottom plate groove die 39 are synchronously arranged, and a plate bottom drainage ditch 67 is arranged; the arrangement position of the disassembly-free wall mold 44 is controlled by the first sliding support plate 46 and the second sliding support plate 47, and the guide closing plate 52 can be tightly connected with the template closing body 54 in the guide plate connecting groove 53 through the wall mold fastening bolt 50.

The remaining embodiments of the components are as follows:

the water stop plate positioning frame 6 comprises a frame top transverse rib 58, a frame bottom transverse rib 59 and an oblique connecting rib 60, all the water stop plate positioning frame is formed by rolling threaded reinforcing steel bars with the diameter of 12mm, the threaded reinforcing steel bars are arranged in parallel to the height direction of the foundation pit supporting pile 1 at even intervals, the frame top transverse rib 58 and the frame bottom transverse rib 59 are arranged in parallel, and are integrally rolled or welded with the oblique connecting rib 60.

And water stop plate positioning ribs 7 which are connected with the advanced water stop plate 8 in a welding way are respectively welded on the frame top transverse rib 58 and the frame bottom transverse rib 59. The water stop plate positioning rib 7 adopts a twisted steel bar with the diameter of 12 mm.

The first caulking body 10 is made of a rubber plate material with the thickness of 4mm, one end of the first caulking body is connected with the outer wall waterproof layer 3 in a sticking mode, and the other end of the first caulking body is connected with the advanced water stop plate 8 in a sticking mode. The leading water stop plate 8 is formed by rolling a steel plate with the thickness of 3 mm.

The outer wall concrete 9 is made of concrete materials, and the strength grade of the concrete is C35.

The second joint filling body 11 is made of a rubber plate material with the thickness of 10mm, one end of the second joint filling body is connected with the leading water stop plate 8 in a sticking mode, and the other end of the second joint filling body is flush with the outer surface of the closing-up rib net 15.

The wall mould support frame 12 adopts a common fastener type scaffold, the diameter of a steel pipe is 48mm, and the wall thickness is 3.5 mm.

The wall external mold 13 is formed by rolling a steel plate with the thickness of 3 mm.

The groove die supporting block 14 is formed by rolling a steel plate with the thickness of 10 mm.

The closing rib net 15 adopts a steel fiber grating.

The wall slot die 16 is formed by rolling a steel plate with the thickness of 3mm, and the cross section of the wall slot die is rectangular.

The wall embedded bolt 17 adopts a nut with the inner diameter of 30 mm.

The wall mould position control bolts 18 comprise screw rods and nuts with the diameter of 30mm, are arranged in pairs on the side, facing the wall body groove mould 16, of the groove mould supporting block 14, and enable the fastening directions of the screw rods on the two sides of the nuts to be opposite.

The two ends of the wall form position control bolt 18 are respectively connected with the groove form bracing block 14 and the wall form pressing plate 62 through position control bolt end hinges 61. The position control bolt end hinge 61 is a spherical hinge with the diameter of 30mm, and the wall mold pressing plate 62 is formed by rolling a steel plate with the thickness of 3 mm.

The wall post-cast strip 19 is formed by pouring self-compacting concrete materials, and the strength grade of the concrete is C35.

First fagging spout 20 and second fagging spout 21 all adopt the steel sheet rolling of thickness 3mm to form, and the length direction along first fagging spout 20 and second fagging spout 21 sets up the fagging spread groove 49 that the cross-section is "T" shape, and the end width of fagging spread groove 49 is 20 cm.

The chute ear plates 63 of the first and second strut plate chutes 20 and 21 are respectively provided with holes for the chute anchor bars 22 to pass through. The chute anchor 22 is a screw with a diameter of 30 mm. The chute ear plate 63 is formed by cutting a steel plate with the thickness of 3 mm.

The beam connecting plate 23 is rolled by a steel plate with the thickness of 10 mm.

The connecting plate anchor bars 24 adopt expansion bolts with the diameter of 30 mm.

The supporting beam 25 is made of H-shaped steel with the strength grade of Q235 and the size of 150 multiplied by 7 multiplied by 10.

The foundation soil 26 is cohesive soil in a hard plastic state.

The compression molding position control rod 27 comprises a screw rod and a nut with the diameter of 30mm, and the fastening directions of the screw rods on the two sides of the nut are opposite.

The position control rod end hinge 28 adopts a spherical hinge with the diameter of 30 mm.

The stay bar pressing plate 29 is formed by rolling a steel plate with the thickness of 3 mm.

The cross section of the trapezoidal pressing die 30 is trapezoidal and is formed by rolling a steel plate with the thickness of 3mm, and the top surface of the trapezoidal pressing die is connected with the stay bar pressing plate 29 in a welding or sticking way.

The waterproof floor layer 31 is made of a rubber plate material with the thickness of 4 mm.

The bottom mat 32 is a cement mortar with a thickness of 50mm and a strength rating of M20.

The basement floor 33 is a concrete slab with a thickness of 300mm and a strength rating of C30.

The base plate stirrup 34 is made of a threaded steel bar with the diameter of 10 mm.

The bottom plate longitudinal bars 35 are threaded reinforcing steel bars with the diameter of 25 mm.

The third caulking body 36 is made of a rubber plate material with the thickness of 4mm, one end of the third caulking body is connected with the bottom plate waterproof layer 31 in a sticking mode, and the other end of the third caulking body is connected with the connected leading water stop plate 8 in a sticking mode.

The fourth caulking body 37 is made of a rubber plate material with the thickness of 10mm, one end of the fourth caulking body is connected with the connected leading water stop plate 8 in a sticking mode, and the other end of the fourth caulking body is flush with the outer surface of the closing-up rib net 15.

The plate mold position control bolt 38 comprises a screw rod and a nut with the diameter of 30mm, the fastening directions of the screw rods on the two sides of the nut are opposite, and the two ends of the plate mold position control bolt 38 are respectively connected with the supporting cross beam 25 and the bottom plate groove mold 39 in a welding mode.

The bottom plate groove dies 39 are formed by rolling steel plates with the thickness of 3mm, and the bottom plate groove dies 39 vertical to the two sides are vertically welded and connected with the groove pressing dies 64 at the bottom.

The groove pressing die 64 is formed by rolling a steel plate with the thickness of 3mm, pressing die convex falcon 65 with the cross section in an isosceles trapezoid shape are evenly arranged on the groove pressing die 64 at intervals, the top width of the pressing die convex falcon 65 is 20cm, the bottom width of the pressing die convex falcon 65 is 40cm, the height of the pressing die convex falcon is 5cm, and the cross section is in an isosceles trapezoid shape.

The bottom plate embedded bolt 40 adopts a nut with the inner diameter of 30 mm.

The groove die fastening bolt 41 is a high-strength screw rod with a diameter of 30 mm.

The cover plate connecting bolt 42 is composed of a stainless steel screw rod and a bolt, wherein the diameter of the stainless steel screw rod is 30 mm.

The closed cover plate 43 is formed by rolling a steel plate with the thickness of 3mm, a cover plate water drain hole 66 and a hole for the cover plate connecting bolt 42 to pass through are formed in the closed cover plate 43, and a plate bottom drainage ditch 67 is formed in the lower surface of the closed cover plate 43. The cover plate drain hole 66 is rectangular, 5mm in width and 20cm in length. The cross section of the plate bottom drainage ditch 67 is trapezoidal, the bottom width is 10cm, the top width is 5m, and the height is 5 cm.

The disassembly-free wall form 44 is made of reinforced concrete, the concrete strength grade is C35, a guide closing plate 52 and a guide plate connecting groove 53 are respectively arranged at the joint of two vertically connected disassembly-free wall forms 44, and a connecting closing strip 68 is arranged at the joint of the disassembly-free wall form 44 and the closing rib net 15. The guide closing plate 52 and the guide connecting groove 53 are both formed by rolling a steel plate with a thickness of 3 mm.

The form closure 54 uses a rubber strip having a thickness of 2 mm.

The wall mould inner connecting plate 45 is formed by rolling a steel plate with the thickness of 3 mm.

The first sliding support plate 46 and the second sliding support plate 47 are formed by rolling steel plates with the thickness of 10mm, and the width of the steel plates is 5 cm.

The supporting plate connecting plate 48 is formed by rolling a steel plate with the thickness of 10mm and the width of 10 cm.

The wall form fastening bolt 50 is formed by rolling a screw rod with the diameter of 30 mm.

The wall form fastening plate 51 is formed by rolling a steel plate with the thickness of 10 mm.

The bottom plate reinforcing ribs 55 are formed by rolling screws with the diameter of 30, and the cross section of the bottom plate reinforcing ribs is in a T shape.

The floor post-cast strip 56 is made of concrete material with a concrete strength rating of C35.

The cross section of the bottom plate connecting tenon 57 is in an isosceles trapezoid shape and is formed by hardening concrete.

The connecting sealing strip 68 is a rubber plate with a thickness of 3 mm.

The present invention is not described in detail in the prior art, and therefore, the present invention is not described in detail.

It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.

Although the use of the term in the present text is used more often, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by anyone in the light of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as those of the present application, fall within the protection scope of the present invention.