阅读说明：本技术 一种组合式倾斜桩锚杆基坑支护体系及支护方法 (Combined type inclined pile anchor rod foundation pit supporting system and supporting method ) 是由 陈建平 强小钟 张惠 黄言君 于 2021-07-23 设计创作，主要内容包括：本申请涉及基坑支护的领域,尤其是涉及一种组合式倾斜桩锚杆基坑支护体系及支护方法,其包括贴合基坑侧壁设置的支护板,和设于基坑坑底的支撑柱,所述支撑柱上设有若干连接于支护板的支护杆,所述支撑柱上还设有固定板,所述固定板的侧边位于基坑的坑壁内,所述支护板背离支撑柱的一侧设有连接于固定板的连接杆。本申请在基坑内设置了支撑柱,支撑柱对固定板起到固定的作用,固定板对支护板起到支撑的作用,支护杆和连接杆分别对支护板的两侧进行支撑,从而能够加强对支护板的支撑强度。(The utility model belongs to the technical field of excavation supporting and specifically relates to a modular batter pile stock excavation supporting system and method are strutted, and it is including a backplate that laminating foundation ditch lateral wall set up and the support column of locating the foundation ditch pit bottom, be equipped with a plurality of support rods of connecting in a backplate on the support column, still be equipped with the fixed plate on the support column, the side of fixed plate is located the pithead of foundation ditch, one side that a backplate deviates from the support column is equipped with the connecting rod of connecting in the fixed plate. This application has set up the support column in the foundation ditch, and the support column plays fixed effect to the fixed plate, and the fixed plate plays the effect of support to the supporting plate, and a fender rod and connecting rod support the both sides of a backplate respectively to can strengthen the support intensity to the supporting plate.)

1. The utility model provides a modular batter pile stock excavation supporting system which characterized in that: including a backplate (12) that laminating foundation ditch (1) lateral wall set up and support column (2) of locating foundation ditch (1) hole bottom, be equipped with a plurality of support rods (15) of connecting in a backplate (12) on support column (2), still be equipped with fixed plate (24) on support column (2), the side of fixed plate (24) is located the hole wall of foundation ditch (1), one side that props up backplate (12) and deviates from support column (2) is equipped with connecting rod (19) of connecting in fixed plate (24).

2. The combined inclined pile anchor rod foundation pit supporting system according to claim 1, wherein: support pole (15) and divide pole (152) including first branch pole (151) and second, the one end fixed connection in support column (2) of first branch pole (151), the other end of first branch pole (151) is connected in second branch pole (152), the second divides pole (152) to keep away from the one end of first branch pole (151) and is equipped with inserted block (25), be equipped with on a fender board (12) and supply inserted block (25) male slot (17), holding tank (18) have been seted up to the tank bottom of slot (17).

3. The combined inclined pile anchor rod foundation pit supporting system according to claim 2, wherein: the top surface of the fixing plate (24) is provided with a groove (11) for placing the supporting plate (12), the circumferential surface of the connecting rod (19) is provided with threads (21), the connecting rod (19) is connected with the supporting plate (12) through the threads (21), and the connecting rod (19) is connected with the fixing plate (24) through the threads (21).

4. The combined inclined pile anchor rod foundation pit supporting system according to claim 1, wherein: one end of the connecting rod (19) close to the support guard plate (12) is provided with a driving rod (22), and one end of the connecting rod (19) close to the fixing plate (24) is provided with a conical tip (23).

5. The combined inclined pile anchor rod foundation pit supporting system according to claim 1, wherein: a plurality of reinforcing columns (3) are further arranged around the supporting column (2), and reinforcing holes (4) for the reinforcing columns (3) to pass through are formed in the fixing plate (24).

6. The combined inclined pile anchor rod foundation pit supporting system according to claim 1, wherein: be equipped with stiffener (6) on bracing pole (15), offer hole of stepping down (7) that supply stiffener (6) to pass on stiffener (6), the one end of stiffener (6) is connected in support column (2), the other end fixed connection of stiffener (6) in fixed plate (24).

7. The combined inclined pile anchor rod foundation pit supporting system according to claim 6, wherein: the utility model discloses a supporting column, including stiffener (6), fixed plate (24), set up on the stiffener (6) and be close to one of fixed plate (24) and serve and place board (9), set up on fixed plate (24) and supply to place standing groove (10) that board (9) were put into, stiffener (6) are close to one of support column (2) and serve and be equipped with arc board (8), arc board (8) are connected with support column (2) through bolt (16).

8. The combined inclined pile anchor rod foundation pit supporting system according to claim 1, wherein: chamfers (13) are arranged on two sides of the supporting and protecting plate (12), and the chamfers (13) on the two adjacent supporting and protecting plates (12) are mutually attached.

9. A support method of a combined inclined pile anchor rod foundation pit support system, according to any one of claims 1-8, characterized in that: the method comprises the following steps of Step1, pouring the pile: digging pile holes of the support columns (2) and pile holes of the reinforcing columns (3) at the bottom of the foundation pit (1) along the vertical direction, placing reinforcement cages in the pile holes, and pouring concrete into the pile holes;

step2, plating: an accommodating groove (18) for accommodating a fixing plate (24) is formed in the side wall of the foundation pit (1), the fixing plate (24) is laid on the bottom surface of the foundation pit (1), and a groove (11) is formed in the fixing plate (24);

step3, plate: the supporting and protecting plate (12) is placed in the groove (11), and the connecting rod (19) is screwed into the supporting and protecting plate (12) and the fixing plate (24) through the driving rod (22);

step4, reinforcing a supporting plate (12): the fixing plate (24) is connected to the supporting column (2) and the fixing plate (24), a first branch rod (151) is arranged on the fixing plate (24), one end of the first branch rod (151) is connected to the supporting column (2) through a bolt (16), the other end of the first branch rod (151) is connected with a second branch rod (152), meanwhile, an inserting block (25) on the second branch rod (152) is inserted into the accommodating groove (18), and the supporting of the supporting plate (12) is completed.

Technical Field

The application relates to the field of foundation pit support, in particular to a combined inclined pile anchor rod foundation pit support system and a support method.

Background

The foundation pit support is a retaining, reinforcing and protecting measure adopted for the side wall of the foundation pit and the surrounding environment in order to ensure the safety of the construction of an underground structure and the surrounding environment of the foundation pit. The general degree of depth of foundation ditch is darker, to excavation supporting's in-process, generally can be with the backplate laminating on the foundation ditch lateral wall to set up the bracing piece that is used for the backplate in the foundation ditch. However, in the related art, only the inner side of the protector plate is supported in the process of supporting the protector plate, so that the support strength is not high, and needs to be further improved.

Disclosure of Invention

In order to improve the supporting strength of the side wall of the foundation pit, the application provides a combined type inclined pile anchor rod foundation pit supporting system and a supporting method.

The application provides a pair of modular batter pile stock excavation supporting system adopts following technical scheme:

the utility model provides a modular batter pile stock excavation supporting system, is including the backplate that sets up of laminating foundation ditch lateral wall and the support column of locating the foundation ditch pit bottom, be equipped with a plurality of support rods of connecting in a backplate on the support column, still be equipped with the fixed plate on the support column, the side of fixed plate is located the hole wall of foundation ditch, one side that a backplate deviates from the support column is equipped with the connecting rod of connecting in the fixed plate.

Through adopting above-mentioned technical scheme, on the lateral wall of supporting plate butt to the foundation ditch, the fixed plate played the effect of support to the supporting plate, and the effect that the bracing piece butt played the support to the inner wall of a backplate has reduced the possibility of supporting plate slope on the bracing pole butt is to the inner wall of a backplate. The connecting rod plays the effect of tractive to the supporting plate in the outside of supporting plate to supporting rod and connecting rod stabilize the supporting plate from both sides, have effectively improved the stability of a backplate, have strengthened the intensity of strutting to the foundation ditch lateral wall.

Optionally, the bracing piece includes that first branch pole and second divide the pole, the one end fixed connection that first branch pole divides the pole in the support column, the other end that first branch pole is connected in the second divides the pole, the second divides the pole to keep away from the one end that first branch pole to be equipped with the inserted block, be equipped with on the backplate and supply the inserted slot of inserted block, the holding tank has been seted up to the tank bottom of slot.

Through adopting above-mentioned technical scheme, first minute pole is connected with the support column to the support column plays fixed and the effect that supports to first minute pole, and first minute pole is connected with the second minute pole, and the inserted block on the second minute pole inserts in the holding tank, and the inserted block is difficult for deviating from the holding tank, thereby can improve the support intensity of strut pole to the supporting plate.

Optionally, a groove for placing the supporting plate is formed in the top surface of the fixing plate, threads are formed in the circumferential surface of the connecting rod, the connecting rod is in threaded connection with the supporting plate, and the connecting rod is in threaded connection with the fixing plate.

Through adopting above-mentioned technical scheme, in the recess of fixed plate was placed to the bottom surface of propping up the backplate, the connecting rod screw in to supporting plate and fixed plate on to play the effect of connecting supporting plate and fixed plate, the lateral wall of foundation ditch need not to excavate and can be with the connecting rod screw in to supporting plate and fixed plate on.

Optionally, one end of the connecting rod, which is close to the supporting plate, is provided with a driving rod, and one end of the connecting rod, which is close to the fixed plate, is provided with a conical tip.

Through adopting above-mentioned technical scheme, can drive the connecting rod through the actuating lever and rotate, the awl point makes the connecting rod easily screw in to the lateral wall of foundation ditch for the foundation ditch lateral wall need not to dig out.

Optionally, a plurality of reinforcing columns are further arranged around the supporting column, and reinforcing holes for the reinforcing columns to pass through are formed in the fixing plate.

Through adopting above-mentioned technical scheme, strengthen the subaerial in the foundation ditch is located to the post, strengthen the post and play firm effect to the fixed plate for the fixed plate can play better supporting role to the supporting plate.

Optionally, be equipped with the stiffener on the bracing piece, set up the hole of stepping down that supplies the stiffener to pass on the stiffener, the one end of stiffener is connected in the support column, the other end fixed connection of stiffener in fixed plate.

Through adopting above-mentioned technical scheme, the both ends of stiffener are connected respectively in fixed plate and support column, and fixed plate and support column play fixed effect to the stiffener, and the stiffener penetrates the hole of stepping down of seting up on the stiffener in to the stiffener can improve the stability of stiffener.

Optionally, one end of the reinforcing rod close to the fixed plate is provided with a placing plate, the fixed plate is provided with a placing groove for placing the placing plate, one end of the reinforcing rod close to the support column is provided with an arc plate, and the arc plate is connected with the support column through a bolt.

Through adopting above-mentioned technical scheme, the stiffener passes through backplate and support column fixed connection, and the board of placing that sets up on the stiffener is placed in the standing groove to the stiffener can improve the stability of being connected of fixed plate and support column.

Optionally, chamfers are arranged on two sides of the supporting and protecting plate, and the chamfers on the two adjacent supporting and protecting plates are attached to each other.

Through adopting above-mentioned technical scheme, two adjacent backplate can support each other for several backplate of laminating foundation ditch inner wall can butt each other, have further strengthened the support intensity of backplate.

A supporting method of a combined type inclined pile anchor rod foundation pit supporting system comprises the following steps of Step1, pouring a pile: excavating a pile hole of a support column and a pile hole of a reinforcing column at the bottom of the foundation pit along the vertical direction, placing a reinforcement cage in the pile holes, and pouring concrete into the pile holes;

step2, plating: an accommodating groove for accommodating the fixing plate is formed in the side wall of the foundation pit, the fixing plate is laid on the bottom surface of the foundation pit, and a groove is formed in the fixing plate;

step3, plate: placing the supporting plate into the groove, and screwing the connecting rod into the supporting plate and the fixing plate through the driving rod;

step4, reinforcing a supporting plate: the fixing plate is connected to the supporting column and the fixing plate, the first branch rod is arranged on the fixing plate, one end of the first branch rod is connected to the supporting column through a bolt, the second branch rod is connected to the other end of the first branch rod, and meanwhile the inserting block on the second branch rod is inserted into the accommodating groove to complete supporting of the supporting plate.

Through adopting above-mentioned technical scheme, the support column all adopts the mode of building of reinforcing bar and concrete combination to pour with the enhancement post to can have stronger supporting role, support column and enhancement post play stronger fixed action to the fixed plate, and connecting rod and fender rod play stronger supporting role to a backplate.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the supporting columns are arranged in the foundation pit, the supporting columns play a role in fixing the fixing plate, the fixing plate plays a role in supporting the supporting plate, and the supporting rods and the connecting rods respectively support two sides of the supporting plate, so that the supporting strength of the supporting plate can be enhanced;

2. this application has set up the stiffener that supports to a fender pole on the fixed plate, and the stiffener plays firm effect to a fender pole to further promote a fender pole's stability.

Drawings

Fig. 1 is a schematic general structural diagram of a combined inclined pile anchor foundation pit supporting system according to an embodiment of the application.

Fig. 2 is a schematic structural diagram of a connecting rod according to an embodiment of the present application.

Fig. 3 is a sectional view of a fixing plate according to an embodiment of the present application.

Fig. 4 is an enlarged schematic view of a portion a in fig. 3.

FIG. 5 is a cross-sectional view of a backup plate according to an embodiment of the present application

Description of reference numerals: 1. a foundation pit; 2. a support pillar; 3. a reinforcement column; 4. a reinforcement hole; 5. a reinforcement ring; 6. a reinforcing bar; 7. a hole of abdication; 8. an arc plate; 9. placing the plate; 10. a placement groove; 11. a groove; 12. supporting the guard plate; 13. chamfering; 14. a support ring; 15. a support bar; 151. a first branch rod; 1511. a first splice groove; 152. a second branch rod; 1521. a second splice groove; 16. a bolt; 17. a slot; 18. accommodating grooves; 19. a connecting rod; 20. connecting holes; 21. a thread; 22. a drive rod; 23. a conical tip; 24. a fixing plate; 25. and (5) inserting the blocks.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses modular batter pile stock excavation supporting system. Referring to fig. 1 and 2, a modular oblique pile anchor rod foundation pit supporting system includes a plurality of support columns 2 arranged at the bottom of a foundation pit 1, and further includes a plurality of reinforcement columns 3 arranged at the bottom of the foundation pit 1, the reinforcement columns 3 are arranged around the support columns 2, a fixing plate 24 is arranged on the side wall of the support columns 2, the fixing plate 24 is laid on the bottom of the foundation pit 1, and the side edge of the fixing plate 24 is located in the side wall of the foundation pit 1. The fixed plate 24 is also provided with a reinforcing hole 4, the reinforcing hole 4 is used for inserting the reinforcing column 3, and the reinforcing column 3 and the supporting column 2 play a role in fixing the fixed plate 24.

Referring to fig. 3 and 4, the supporting column 2 is provided with a reinforcing ring 5 located above the fixing plate 24, the reinforcing ring 5 is provided with a plurality of reinforcing rods 6, and the reinforcing rods 6 are provided with abdicating holes 7. One of stiffener 6 near support ring 14 serves and is equipped with arc board 8, arc board 8 is connected with stiffener ring 5 through bolt 16, stiffener 6 is kept away from one of stiffener ring 5 and is served and is equipped with and place board 9, has seted up standing groove 10 on the fixed plate 24, standing groove 10 supplies to place board 9 and puts into, places and wears to be equipped with a plurality of bolts 16 of connecting in fixed plate 24 on the board 9 to the both ends of stiffener 6 respectively with fixed plate 24 and 5 fixed connection of stiffener ring, stiffener 6 has strengthened the stability of fixed plate 24.

Referring to fig. 3 and 4, a plurality of grooves 11 are formed in the top surface of the fixing plate 24, supporting plates 12 are arranged in the grooves 11, the supporting plates 12 are attached to the side wall of the foundation pit 1, chamfers 13 are formed in the side edges of the supporting plates 12, the chamfers 13 on the two adjacent supporting plates 12 are attached to each other, and therefore the supporting plates 12 are attached to each other and abutted against each other. Be equipped with the support ring 14 on the support column 2, be equipped with a plurality of branch poles 15 on the global of support ring 14, branch pole 15 includes the first branch pole 151 of being connected with support ring 14 and the second branch pole 152 of being connected with first branch pole 151, bolt 16 and support ring 14 fixed connection are passed through to the one end that first branch pole 151 is close to support ring 14, and first branch pole 151 passes the hole 7 of stepping down, the both ends of first branch pole 151 are located the both sides of stiffener 6 respectively, thereby stiffener 6 plays firm effect to first branch pole 151. One end, far away from the support ring 14, of the first branch rod 151 is connected to the second branch rod 152, a first splicing groove 1511 close to the second branch rod 152 is formed in the bottom surface of the first branch rod 151, a second splicing groove 1521 close to the first branch rod 151 is formed in the top surface of the second branch rod 152, the first splicing groove 1511 is abutted to the bottom of the second splicing groove 1521, and a bolt 16 used for connecting the first branch rod 151 and the second branch rod 152 penetrates through the bottoms of the first splicing groove 1511 and the second splicing groove 1521 together.

Referring to fig. 3 and 5, one end of the second branch rod 152 far away from the first branch rod 151 is provided with the insertion block 25, the inner wall of the supporting plate 12 is provided with the slot 17 for inserting the insertion block 25, the slot bottom of the slot 17 is provided with the accommodating groove 18, the top wall of the accommodating groove 18 is higher than the top wall of the slot 17, when the second branch rod 152 is connected to the first branch rod 151, the insertion block 25 penetrates through the slot 17 and enters the accommodating groove 18, the first branch rod 151 is connected to the rear of the second branch rod 152, the insertion block 25 is located in the accommodating groove 18, the insertion block 25 is abutted to the supporting plate 12, and the supporting plate 12 is supported strongly.

The supporting and protecting plate 12 is further provided with a plurality of connecting rods 19 in a penetrating manner, the supporting and protecting plate 12 is provided with a plurality of connecting holes 20, and the connecting rods 19 are inserted into the connecting holes 20. The circumferential surface of the connecting rod 19 is provided with a thread 21, and the connecting rod 19 is connected with the thread 21 of the supporting plate 12. The connecting rod 19 is obliquely arranged, one end of the connecting rod 19 at the lower part is connected with the fixed plate 24 through threads 21, and the connecting rod 19 is positioned at the outer side of the support guard plate 12. One end of the connecting rod 19 close to the supporting plate 12 is provided with a driving rod 22, one end of the connecting rod 19 close to the fixing plate 24 is provided with a conical tip 23, one end of the connecting rod 19 where the conical tip 23 is located is placed into the connecting hole 20, the connecting rod 19 is driven to rotate through the driving rod 22, so that the connecting rod 19 moves towards the end where the conical tip 23 is located in a spiral mode, one end of the connecting rod 19 where the conical tip 23 is located is screwed into the fixing plate 24, the supporting plate 12 is effectively fixed on the outer side of the supporting plate 12, and supporting strength of the supporting plate 12 is further improved.

The implementation principle of a combined inclined pile anchor rod foundation pit supporting system in the embodiment of the application is as follows: the supporting plate 12 is placed on the fixing plate 24, the supporting column 2 and the reinforcing column 3 can strengthen the stability and structural strength of the fixing plate 24, the supporting plate 12 arranged on the supporting column 2 can support the inner side of the supporting plate 12, the reinforcing rod 6 arranged on the fixing plate 24 can strengthen the stability of the fixing plate 24, and the stability of the supporting rod 15 can also be strengthened. The connecting rods 19 arranged on the fixing plate 24 and the supporting plate 12 are positioned on the outer side of the supporting plate 12, and can play a role in drawing the outer side of the supporting plate 12, so that the supporting strength of the supporting plate 12 on the side wall of the foundation pit 1 is further improved.

Compared with the prior art, the supporting column 2 is arranged in the foundation pit 1, the supporting column 2 plays a role in fixing the fixing plate 24, the fixing plate 24 plays a role in supporting the supporting plate 12, and the supporting rods 15 and the connecting rods 19 respectively support two sides of the supporting plate 12, so that the supporting strength of the supporting plate 12 can be enhanced.

The embodiment of the application also discloses a supporting method of the combined inclined pile anchor rod foundation pit supporting system, which comprises the following steps: step1, pouring the pile: excavating a pile hole of a support column 2 and a pile hole of a reinforcing column 3 at the bottom of the foundation pit 1 along the vertical direction, placing a reinforcement cage in the pile holes, and pouring concrete into the pile holes;

step2, plating: an accommodating groove 18 for accommodating a fixing plate 24 is formed in the side wall of the foundation pit 1, the fixing plate 24 is laid on the bottom surface of the foundation pit 1, and a groove 11 is formed in the fixing plate 24;

step3, plate: the supporting plate 12 is put into the groove 11, and the connecting rod 19 is screwed into the supporting plate 12 and the fixing plate 24 through the driving rod 22;

step4, reinforcing the supporting plate 12: the fixing plate 24 is connected to the supporting column 2 and the fixing plate 24, the first branch rod 151 is arranged on the fixing plate 24, one end of the first branch rod 151 is connected to the supporting column 2 through the bolt 16, the second branch rod 152 is connected to the other end of the first branch rod 151, and meanwhile the insertion block 25 on the second branch rod 152 is inserted into the accommodating groove 18, so that the supporting of the supporting and protecting plate 12 is completed.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.