阅读说明：本技术 一种不规则桩头的防水施工方法 (Waterproof construction method for irregular pile head ) 是由 王力勇 周杰 查晓雄 林桂 何光辉 刘�文 张雷 陈森 彭华强 曾斌 赵良亮 于 2020-06-24 设计创作，主要内容包括：本发明涉及防水施工方法的技术领域,公开了一种不规则桩头的防水施工方法,包括以下施工步骤：在桩头的外圈提前预留一个矩形区域；在桩头的外周铺设PC防水墙板,PC防水墙板的内侧具有朝向矩形区域布置的第一搭接边；将PC防水墙板的第一搭接边处理成方便搭接的直边；在桩头的外周嵌入油膏,之后用柔性搭接材料铺贴桩头外表面的不规则防水区域,将桩头修整成规则的弧面或者直面状；桩头的外周套设第二防水卷材,第二防水卷材由上至下延伸到桩头的底部,第二防水卷材的边部具有朝向第一搭接边布置的第二搭接边；将第一搭接边和第二搭接边热熔连接在一起；并在连接处浇筑砂浆；有效减小桩头外侧壁与第二防水卷材之间的缝隙,起到较佳的防渗漏效果。(The invention relates to the technical field of waterproof construction methods, and discloses a waterproof construction method of an irregular pile head, which comprises the following construction steps: reserving a rectangular area in advance on the outer ring of the pile head; laying a PC waterproof wallboard at the periphery of the pile head, wherein the inner side of the PC waterproof wallboard is provided with a first overlapping edge arranged towards the rectangular area; processing a first overlapping edge of the PC waterproof wallboard into a straight edge convenient for overlapping; embedding factice on the periphery of the pile head, then paving an irregular waterproof area on the outer surface of the pile head by using a flexible lapping material, and trimming the pile head into a regular cambered surface or a straight surface; a second waterproof coiled material is sleeved on the periphery of the pile head, the second waterproof coiled material extends to the bottom of the pile head from top to bottom, and the edge of the second waterproof coiled material is provided with a second overlapping edge arranged towards the first overlapping edge; connecting the first overlapping edge and the second overlapping edge together in a hot melting way; pouring mortar at the joint; effectively reduce the gap between pile head lateral wall and the second waterproofing membrane, play the antiseep effect of preferred.)

1. A waterproof construction method of an irregular pile head is characterized by comprising the following construction steps:

s1, reserving a rectangular area in advance on the outer ring of the pile head in the construction process of the bottom plate;

s2, paving a PC waterproof wallboard at the periphery of the pile head, wherein the inner side of the PC waterproof wallboard is provided with a first overlapping edge arranged towards the rectangular area;

s3, processing the first overlapping edge of the PC waterproof wallboard into a straight edge convenient for overlapping;

s4, embedding factice on the periphery of the pile head, then paving an irregular waterproof area on the outer surface of the pile head by using a flexible lapping material, and trimming the pile head into a regular cambered surface or a straight surface;

s5, pouring a protective layer of the irregular waterproof area;

s6, sleeving a second waterproof coiled material on the periphery of the pile head, wherein the second waterproof coiled material extends to the bottom of the pile head from top to bottom, and the edge of the second waterproof coiled material is provided with a second overlapping edge arranged towards the first overlapping edge;

s7, hot melting and connecting the first overlapping edge and the second overlapping edge together through a hot melting device;

s8, pouring mortar at the joint of the first overlap edge and the second overlap edge;

s9, installing steel bars on the bottom plate, and then pouring concrete;

and S10, finishing construction.

2. The method of waterproofing an irregular pile head according to claim 1, wherein in step S2, the fabricated PC waterproof wallboard comprises a first waterproof roll, a first concrete plate and a second concrete plate, the first concrete plate is arranged on the upper surface of the first waterproof roll in a fitting manner, and the second concrete plate is arranged on the lower surface of the first waterproof roll in a fitting manner; the waterproof structure is characterized in that the upper surface and the lower surface of the first waterproof roll are respectively provided with a fixing structure, the first concrete plate is fixedly connected with the upper surface of the first waterproof roll through the fixing structure, and the second concrete plate is fixedly connected with the lower surface of the first waterproof roll through the fixing structure.

3. The method of claim 1, wherein in step S6, after a second waterproof roll is installed around the pile head, a steel strip is bound to the outer surface of the second waterproof roll along the circumference of the pile head.

4. The method for waterproofing an irregular pile head according to any one of claims 1 to 3, wherein in step S5, a third waterproof roll is wrapped around the flexible overlapping material, the third waterproof roll is placed between the pile head and the second waterproof roll, and both the inside and the outside of the third waterproof roll are poured with an adhesive.

5. The waterproof construction method for the irregular pile head according to claim 4, wherein when a third waterproof roll is laid, the front end of the third waterproof roll is fixed on the outer surface of the pile head, and then the third waterproof roll is wound in a clockwise or counterclockwise direction, so that the outer side wall of the pile head is completely covered.

6. The method for waterproofing an irregular pile head according to claim 4, wherein the third waterproof roll has a first protrusion at the rear end thereof, and the first protrusion is provided with a rivet, and the rivet is embedded into the pile head; the front end of third water roll material has the second lug, works as the winding of third water roll material is in when the pile is overhead, first lug is dislocation arrangement and gomphosis each other with the second lug, the front end and the rear end of flexible overlap joint material are the parallel and level and arrange.

7. The waterproof construction method for the irregular pile head according to claim 2, wherein the second waterproof roll comprises a vertical part and a horizontal part, the vertical part and the horizontal part are integrally formed and arranged, the vertical part is arranged in a cylindrical shape, the upper end of the vertical part is closed, the lower end of the vertical part is open, the vertical part is sleeved on the outer surface of the pile head, the horizontal part is in a circular ring shape, the horizontal part is attached to the bottom plate, and adhesive is filled between the horizontal part and the bottom plate.

8. The method of waterproofing an irregular pile head according to claim 7, the horizontal part is made of PC waterproof wallboard, the area of the first waterproof coiled material is larger than that of the first concrete slab, four side portions of the first waterproofing roll extend above the first concrete slab to form the first overlapping side, the area of the first concrete plate is smaller than that of the second concrete plate, the first lap edge of the first waterproof coiled material extends upwards and is attached to the peripheral side wall of the first concrete plate, when the horizontal part is spliced with the PC waterproof wallboard, the side wall of the second concrete plate of the PC waterproof wallboard is abutted with the side wall of the second concrete plate of the horizontal part, the first overlapping edge and the second overlapping edge are oppositely arranged and are connected together through a hot melting device in a hot melting mode.

9. The method of claim 8, wherein the first overlapping edge and the second overlapping edge are vertically opposite to each other.

10. The waterproof construction method of an irregular pile head as claimed in claim 9, wherein a mortar protection layer is laid over the junction of the first and second overlapping edges after the hot-melt joining between the first and second overlapping edges, the mortar protection layer serving to insulate and protect the waterproof joint.

Technical Field

The invention relates to the technical field of waterproof construction methods, in particular to a waterproof construction method for an irregular pile head.

Background

The building waterproof effect is an important factor influencing the building quality and the service life thereof, and is also a key point which is very concerned when people use the building, in particular to the building basement waterproof technology.

At present, the main part of basement waterproof construction is basement pile head is waterproof, but in the construction, the shape of pile head generally can have some caves in more or less or protruding, the pile head is irregularly arranged, like this, when carrying out waterproof construction to the pile head, waterproof material can't closely laminate in the periphery of pile head, will have the gap between waterproof material and the pile head, then groundwater upwards seeps water from the gap department between pile head and the waterproof material easily, seriously influences the quality of building and life.

Disclosure of Invention

The invention aims to provide a waterproof construction method of an irregular pile head, and aims to solve the problem that in the prior art, the irregular pile head is not tightly attached to a waterproof material, and a gap is easily formed to cause water seepage.

The invention is realized in this way, a waterproof construction method of irregular pile head, comprising the following construction steps:

s1, reserving a rectangular area in advance on the outer ring of the pile head in the construction process of the bottom plate;

s2, paving a PC waterproof wallboard at the periphery of the pile head, wherein the inner side of the PC waterproof wallboard is provided with a first overlapping edge arranged towards the rectangular area;

s3, processing the first overlapping edge of the PC waterproof wallboard into a straight edge convenient for overlapping;

s4, embedding factice on the periphery of the pile head, wherein the factice can be viscose or concrete grout, and then paving an irregular waterproof area on the outer surface of the pile head by using a flexible lapping material to trim the pile head into a regular cambered surface or a straight surface;

s5, pouring a protective layer of the irregular waterproof area;

s6, sleeving a second waterproof coiled material on the periphery of the pile head, wherein the second waterproof coiled material extends to the bottom of the pile head from top to bottom, and the edge of the second waterproof coiled material is provided with a second overlapping edge arranged towards the first overlapping edge;

s7, hot melting and connecting the first overlapping edge and the second overlapping edge together through a hot melting device;

s8, pouring mortar at the joint of the first overlap edge and the second overlap edge;

s9, installing steel bars on the bottom plate, and then pouring concrete;

and S10, finishing construction.

Further, in step S2, the fabricated PC waterproof wallboard includes a first waterproof roll, a first concrete plate and a second concrete plate, wherein the first concrete plate is arranged on the upper surface of the first waterproof roll in a fitting manner, and the second concrete plate is arranged on the lower surface of the first waterproof roll in a fitting manner; the waterproof structure is characterized in that the upper surface and the lower surface of the first waterproof roll are respectively provided with a fixing structure, the first concrete plate is fixedly connected with the upper surface of the first waterproof roll through the fixing structure, and the second concrete plate is fixedly connected with the lower surface of the first waterproof roll through the fixing structure.

Further, in step S6, after the second waterproof roll is sleeved on the outer circumference of the pile head, a steel strip is bound on the outer side of the top of the pile head along the circumferential direction of the pile head, and the steel strip is bound on the outer surface of the second waterproof roll.

Further, in step S5, the periphery of the flexible overlapping material is wrapped with a third waterproof roll, the third waterproof roll is arranged between the pile head and the second waterproof roll, and the inner side and the outer side of the third waterproof roll are both filled with an adhesive.

Further, when paving and pasting a third water-proofing coiled material, firstly fixing the front end of the third water-proofing coiled material on the outer surface of the pile head, and then winding the third water-proofing coiled material clockwise or anticlockwise to realize the comprehensive coverage of the outer side wall of the pile head.

Further, a first bump is arranged at the rear end of the third waterproof roll material, a rivet is arranged on the first bump, and the rivet is embedded into the pile head; the front end of third water roll material has the second lug, works as the winding of third water roll material is in when the pile is overhead, first lug is dislocation arrangement and gomphosis each other with the second lug, the front end and the rear end of flexible overlap joint material are the parallel and level and arrange.

Further, the second waterproofing membrane includes vertical portion and horizontal part, vertical portion with horizontal part integrated into one piece arranges, vertical portion is the tube-shape and arranges, the upper end of vertical portion is sealed, the lower extreme opening of vertical portion, vertical portion cover is established the surface of pile head, the horizontal part is the ring form, the horizontal part laminating is in on the bottom plate the horizontal part with it has the viscose to fill between the bottom plate.

Further, the material of horizontal part is PC waterproof wall board, first waterproof roll's area is greater than first concrete slab's area, four limit portions of first waterproof roll extend to first concrete slab's top forms first overlap edge, first concrete slab's area is less than second concrete slab's area, first waterproof roll's first overlap edge extends up to attached on first concrete slab's lateral wall all around, works as the horizontal part with when splicing between the PC waterproof wall board, PC waterproof wall board's second concrete slab's lateral wall with the lateral wall looks butt of the second concrete slab of horizontal part, first overlap edge with the opposite arrangement of second overlap edge, first overlap edge with the second overlap edge links together through hot melt ware hot melt.

Further, the first overlapping edge and the second overlapping edge are arranged oppositely and vertically.

Further, after the first overlapping edge and the second overlapping edge are connected in a hot melting mode, a mortar protective layer is laid above the connection position of the first overlapping edge and the second overlapping edge, and the mortar protective layer is used for isolating and protecting the waterproof joint.

Compared with the prior art, the waterproof construction method for the irregular pile head, provided by the invention, has the advantages that before the pile head is paved with the PC waterproof wallboard, the irregular waterproof area at the periphery of the pile head is trimmed by using the factice and the flexible lapping material, and the pile head is repaired to be relatively regular in shape, so that when the pile head is subjected to waterproof construction operation subsequently, the second waterproof coiled material can be attached to the outer surface of the pile head more tightly, the gap between the waterproof material and the pile head is greatly reduced, the problem that underground water easily seeps upwards from the gap between the pile head and the waterproof material can be effectively avoided, and the service life of a building is prolonged.

Drawings

Fig. 1 is a schematic flow chart illustrating steps of a waterproof construction method for an irregular pile head according to the present invention;

FIG. 2 is a schematic cross-sectional view of a basement in which a waterproof construction method for an irregular pile head is provided according to the present invention;

FIG. 3 is an enlarged schematic view of section A of FIG. 2;

fig. 4 is a schematic cross-sectional view of a waterproof construction of an irregular pile head according to the present invention;

FIG. 5 is an enlarged schematic view of section B of FIG. 4;

fig. 6 is a schematic perspective view of a second waterproofing membrane of the waterproofing construction method for irregular pile heads according to the present invention;

fig. 7 is a schematic sectional view of a PC waterproof wallboard in the waterproof construction method of an irregular pile head provided by the invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The following describes the implementation of the present invention in detail with reference to specific embodiments.

The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.

Referring to fig. 1 to 7, preferred embodiments of the present invention are shown.

A waterproof construction method of an irregular pile head comprises the following construction steps:

s1, in the construction process of the bottom plate, a rectangular area 12 is reserved in advance on the outer ring of the pile head 60;

s2, laying PC waterproof wall panel 40 at the periphery of pile head 60, the inner side of PC waterproof wall panel 40 having first overlapping edge 26 arranged toward rectangular region 12;

s3, processing the first overlapping edge 26 of the PC waterproof wallboard 40 into a straight edge convenient for overlapping;

s4, embedding factice on the periphery of the pile head 60, then paving an irregular waterproof area on the outer surface of the pile head 60 by using a flexible lapping material, and trimming the outer surface of the pile head 60 into a regular cambered surface or a straight surface; therefore, the pile head 60 can be wrapped in a surrounding way more conveniently, and no redundant gap is formed between the waterproof coiled material and the pile head 60;

s5, pouring a protective layer of the irregular waterproof area;

s6, sleeving a second waterproof coiled material 3 around the pile head 60, wherein the second waterproof coiled material 3 extends from top to bottom to the bottom of the pile head 60 and covers the rectangular region 12, the edge of the second waterproof coiled material 3 has a second overlapping edge 25 disposed toward the first overlapping edge 26, and the second overlapping edge 25 is disposed adjacent to the rectangular region 12; and the upper surface of second waterproofing membrane 3 and the upper surface parallel and level of PC waterproof wall board 40 arrange, like this, in the work progress, more regular, can not have the uneven situation, the construction of being convenient for.

S7, connecting the first overlapping edge 26 and the second overlapping edge 25 together through hot melting by a hot melting device, and certainly, pouring adhesive 100 into a gap between the first overlapping edge 26 and the second overlapping edge 25 to realize adhesion of the first overlapping edge 26 and the second overlapping edge 25;

s8, pouring mortar 80 at the joint of the first overlap edge 26 and the second overlap edge 25;

s9, installing steel bars on the bottom plate, and then pouring concrete;

and S10, finishing construction.

According to the waterproof construction method for the irregular pile head, before the pile head 60 is paved with the PC waterproof wallboard 40, the irregular waterproof area on the periphery of the pile head 60 is firstly repaired by using the factice and the flexible lapping material, and the pile head 60 is repaired to be in a relatively regular shape, so that when the pile head 60 is subjected to waterproof construction operation subsequently, the second waterproof coiled material 3 can be attached to the outer surface of the pile head 60 more tightly, the gap between the waterproof material and the pile head 60 is greatly reduced, the problem that underground water easily seeps upwards from the gap between the pile head 60 and the waterproof material can be effectively solved, and the service life of a building is prolonged.

In addition, in the conventional waterproof operation of the pile head 60, the waterproof material is generally arranged on the periphery of the pile head 60 in a fitting manner as much as possible, so that great inconvenience exists in the construction and operation processes, and because the periphery of the pile head 60 is irregular in shape, an ideal effect cannot be achieved when the waterproof material wraps the periphery of the pile head 60, in the invention, in the construction process of the bottom plate, a rectangular area 12 is reserved in advance on the outer ring of the pile head 60, then, in the waterproof construction process of the pile head 60, the whole pile head 60 is constructed, then, in the rectangular area 12 far away from the pile head 60, the first overlapping edge 26 of the PC waterproof wall plate 40 is overlapped with the second overlapping edge 25 of the second waterproof coiled material 3, and the overlapping is carried out in a relatively flat and open area, so that the construction operation of workers is facilitated, and the sealing effect is better.

In step S2, the prefabricated PC waterproof wall panel 40 includes a first waterproof roll 20, a first concrete plate 41, and a second concrete plate 42, the first concrete plate 41 is disposed on the upper surface of the first waterproof roll 20, and the second concrete plate 42 is disposed on the lower surface of the first waterproof roll 20; the upper surface and the lower surface of the first waterproof roll 20 are respectively provided with a fixing structure, the first concrete plate 41 is fixedly connected with the upper surface of the first waterproof roll 20 through the fixing structure, and the second concrete plate 42 is fixedly connected with the lower surface of the first waterproof roll 20 through the fixing structure; like this, when not influencing the supporting role of wallboard, first waterproofing membrane 20 can play isolated effect to the water on the wallboard, can play the problem that effectively prevents the seepage of basement bottom plate structure water-logging to, first waterproofing membrane 20 is difficult for taking place to warp, the displacement under first concrete slab 41 and second concrete slab 4240's limiting action, further improves the stability and the waterproof performance of wallboard, promotes the stability of basement bottom plate structure.

In step S6, after the second waterproof coiled material 3 is sleeved around the pile head 60, the steel strip 61 is bound to the outer side of the top of the pile head 60 along the circumferential direction of the pile head 60, the steel strip 61 is bound to the outer surface of the second waterproof coiled material 3, and the steel strip 61 can fix and limit the second waterproof coiled material 3, so that the second waterproof coiled material 3 can be more tightly attached to the outer side wall of the pile head 60.

In step S5, a third waterproof roll 70 is wrapped around the flexible overlapping material, the third waterproof roll 70 is placed between the pile head 60 and the second waterproof roll 3, and both the inside and the outside of the third waterproof roll 70 are filled with an adhesive.

The first waterproof coiled material 20, the second waterproof coiled material 3 and the third waterproof coiled material 70 are all made of PC plastic, also called polycarbonate, and are colorless and transparent amorphous thermoplastic materials, and the polycarbonate is colorless and transparent, heat-resistant, impact-resistant, flame-retardant and waterproof, and has good mechanical properties at ordinary use temperatures.

In the process of producing the PC waterproof wallboard 40, a mold pouring mode can be adopted, the waterproof coiled material is placed in the mold, then concrete slurry is poured into the mold from two sides of the waterproof coiled material, and after the concrete slurry is solidified, the PC waterproof wallboard 40 is taken out of the mold, namely, the manufacturing of the assembly type PC waterproof wallboard 40 is realized.

When the third waterproof roll material 70 is paved, the front end of the third waterproof roll material 70 is fixed on the outer surface of the pile head 60, and then the third waterproof roll material 70 is wound clockwise or anticlockwise to realize the comprehensive coverage of the outer side wall of the pile head 60.

Like this, at the in-process of winding third water coiled material 70, because the front end of third water coiled material 70 is fixed to be arranged on pile head 60, like this, at the winding in-process, third water coiled material 70 can not skid, rotate, and the winding process is convenient, just can carry out winding work alone, uses manpower sparingly the cost, provides the efficiency of construction.

The rear end of the third waterproof roll material 70 is provided with a first bump 72, the first bump 72 is provided with a rivet 62, and the rivet 62 is embedded into the pile head 60; the front end of the third waterproof roll material 70 is provided with a second bump 71, when the third waterproof roll material 70 is wound on the pile head 60, the first bump 72 and the second bump 71 are arranged in a staggered mode and are mutually embedded, and the front end and the rear end of the third waterproof roll material 70 are arranged in a flush mode.

Rivet 62 can not occupy extra space when realizing the fixed of third waterproofing membrane 70, and the front end and the rear end of third waterproofing membrane 70 are the parallel and level and arrange, wrap up pile head 60 ground more regular, and the cover of the follow-up second waterproofing membrane 3 of being convenient for is established to and the laminating between the second waterproofing membrane 3.

Specifically, second waterproofing membrane 3 includes vertical portion 35 and horizontal part 30, and vertical portion 35 and horizontal part 30 integrated into one piece arrange, and second waterproofing membrane 3 can be prefabricated in advance, and vertical portion 35 arranges with horizontal part 30 integrated into one piece, need not to paste, bond between vertical portion 35 and the horizontal part 30, consequently can not have the problem of leaking between the connecting portion between them, and it is more tight to the parcel of pile head 60, and further promotion is the water-proof effects to irregular pile head 60.

The vertical part 35 is arranged in a cylindrical shape, the size of the inner diameter of the vertical part 35 is consistent with or slightly larger than the size of the outer diameter of the pile head 60, so that when the vertical part 35 is sleeved on the pile head 60 of the pile head 60, a gap is formed between the inner side wall of the vertical part 35 and the outer side wall of the pile head 60, and mortar or viscose can be injected into the gap; the upper end of vertical portion 35 is sealed, and the lower extreme opening of vertical portion 35 can directly overlap vertical portion 35 at the surface of pile head 60 in the installation to vertical portion 35, the construction operation of being convenient for.

The horizontal portion 30 is formed in a circular ring shape, but may be formed in a quadrangular shape, so that when the horizontal portion 30 is attached to the base plate, the horizontal portion 30 is covered on the rectangular region 12, adhesive is filled between the horizontal portion 30 and the base plate, and the second overlapping edge 25 of the horizontal portion 30 is overlapped on the first overlapping edge 26 of the PC coil and is connected thereto by hot melting, thereby having higher uniformity.

Specifically, the horizontal portion 30 is also made of the PC waterproof wall plate 40, so that the two are made of the same material, and the bonding is facilitated in the connection process; the area of the first waterproof roll 20 is larger than that of the first concrete plate 41, four side portions of the first waterproof roll 20 extend to the upper side of the first concrete plate 41 to form a first overlapping edge 26, the area of the first concrete plate 41 is smaller than that of the second concrete plate 42, the first overlapping edge 26 of the first waterproof roll 20 extends upward and is attached to the peripheral side wall of the first concrete plate 41, when the horizontal portion 30 is spliced with the PC waterproof wallboard 40, the side wall of the second concrete plate 42 of the PC waterproof wallboard 40 is abutted against the side wall of the second concrete plate 42 of the horizontal portion 30, the first overlapping edge 26 is arranged opposite to the second overlapping edge 25, the first overlapping edge 26 and the second overlapping edge 25 are hot-melted and connected together by a hot melting device, the first waterproof roll 20 is not interfered when the side wall of the second concrete plate 42 of the PC waterproof wallboard 40 is abutted against the side wall of the second concrete plate 42 of the horizontal portion 30, but also has the effects of bonding and sealing the two.

First overlap edge 26 and second overlap edge 25 are vertical opposition and arrange, and first overlap edge 26 and second overlap edge 25 can be connected through injecting glue 100 or hot melt, and the injecting glue operation between first overlap edge 26 and the second overlap edge 25 of also being more convenient for simultaneously to, first overlap edge 26 and second overlap edge 25 are vertical opposition and arrange, and like this, the connection opening between first overlap edge 26 and the second overlap edge 25 is vertical arrangement up.

After the first overlapping edge 26 and the second overlapping edge 25 are connected in a hot melting mode, a mortar protective layer is laid above the joint of the first overlapping edge 26 and the second overlapping edge 25, the mortar protective layer is used for isolating and protecting the waterproof joint, and the sealing performance of the joint of the first overlapping edge 26 and the second overlapping edge 25 is further improved.

A first projection 7221 on the upper surface of the first waterproof roll 20, a plurality of first projections 7221 are arranged at intervals, and the plurality of first projections 7221 are embedded in the first concrete plate 41; the fixing structure includes a plurality of second protrusions 7122 protrudingly disposed on the lower surface of the first waterproofing membrane 20, the plurality of second protrusions 7122 are disposed at intervals, the plurality of second protrusions 7122 are embedded inside the second concrete plate 42, such that, during the manufacturing process of the fabricated PC wall panel 10, the first protrusions 7221 and the second protrusions 7122 are respectively embedded in the first concrete plate 41 and the second concrete plate 42, the contact area between the first waterproofing membrane 20 and the first concrete plate 41 and the second concrete plate 42 positioned inside is larger, on one hand, the first waterproofing membrane 20 can isolate water on the wall panel, on the other hand, the fixing structure is provided on the upper and lower surfaces of the first waterproofing membrane 20, and is respectively embedded in the first concrete plate 41 and the second concrete plate 42, thereby increasing the contact area between the first waterproofing membrane 20 and the first concrete plate 41 and the second concrete plate 42, the connection between the first waterproof coiled material 20 and the first concrete plate 41 and the second concrete plate 42 is more compact, the stability and the waterproof performance of the wall board are further improved, and therefore the stability and the integrity of the assembled PC wall board 10 are improved.

The first projection 7221 is disposed in a quincunx shape on the upper surface of the first waterproof roll 20, and the second projection 7122 is disposed in a quincunx shape on the lower surface of the first waterproof roll 20.

The quincunx arrangement is the arrangement like the plum blossom petal, and is mostly in a five-point arrangement form.

Moreover, compared with the square arrangement, the first bump 7221 and the second bump 7122 arranged in the quincunx shape can enable the first bump 7221 and the second bump 7122 to be stressed more uniformly and have stronger integrity.

In order to further increase the contact area between the fixing structure and the first and second concrete plates 41 and 42, a plurality of protrusions are provided on the outer sidewalls of the first and second protrusions 7221 and 7122.

In another embodiment, a first external thread may be disposed on the outer sidewall of the first protrusion 7221 along the length direction of the first protrusion 7221, and a second external thread may be disposed on the outer sidewall of the second protrusion 7122 along the length direction of the second protrusion 7122, which may also have the effect of increasing the contact area and the friction force, so that the first waterproofing membrane 20 is more firmly fixed to the first concrete plate 41 and the second concrete plate 42.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.