CN116043873A

CN116043873A - Fertilizer groove backfill structure and fertilizer groove backfill method

Info

Publication number: CN116043873A
Application number: CN202310005156.8A
Authority: CN
Inventors: 李绍才; 曹敬斌; 葛书健; 张晓伟; 米晓波; 杨鑫; 武晓飞; 吴建文; 田文举
Original assignee: Beijing Urban Construction Group Co Ltd
Current assignee: Beijing Urban Construction Group Co Ltd
Priority date: 2023-01-04
Filing date: 2023-01-04
Publication date: 2023-05-02

Abstract

The utility model relates to a fertile groove backfill structure belongs to the building engineering field, including the slope protection stake that sets up along the pit wall surface of foundation ditch and be located inside the foundation ditch and with the fossil fragments skeleton that the slope protection stake interval set up, fossil fragments skeleton with link to each other through a plurality of connecting pieces between the slope protection stake, fossil fragments skeleton deviate from one side of slope protection stake is provided with the panel layer that the full fossil fragments skeleton deviates from slope protection stake one side surface, the panel layer with be provided with the solidification body that forms by the concrete solidification between the slope protection stake, fossil fragments skeleton and connecting piece all bury the inside of solidification body. The application also discloses a fertilizer tank backfilling method, and the application has the effect of backfilling the fertilizer tank in advance under the condition that the underground structure inside the foundation pit is not completely finished.

Description

Fertilizer groove backfill structure and fertilizer groove backfill method

Technical Field

The application relates to the field of constructional engineering, in particular to a fertilizer groove backfill structure and a fertilizer groove backfill method.

Background

The construction of the underground structure is generally started after the foundation pit fertilizer groove is excavated, and the backfilling of the fertilizer groove is carried out after the construction of the underground outer wall of the underground structure is completed. When the underground outer wall of the underground structure is constructed, the support structures such as the scaffold for construction are arranged at the fertilizer groove, so that constructors can construct the underground structure in the fertilizer groove.

When the foundation pit is used for a long time, partial underground structure in the foundation pit is completed, and the foundation pit backfilling work is needed to ensure safety, but because the underground structure in the foundation pit is partially completed, the fertilizer groove backfilling cannot be performed according to the existing fertilizer groove backfilling mode, and the condition that the fertilizer groove backfilling cannot be completed in partial foundation pit area exists.

Disclosure of Invention

In order to backfill a fertilizer groove in advance in a state that an underground structure inside a foundation pit is not completely finished, the application provides a fertilizer groove backfill structure and a fertilizer groove backfill method.

The application provides a fertilizer groove backfill structure adopts following technical scheme:

the utility model provides a fertile groove backfill structure, including the slope protection stake that sets up along the pit wall surface of foundation ditch and be located inside the foundation ditch and with the fossil fragments skeleton that the slope protection stake interval set up, fossil fragments skeleton with link to each other through a plurality of connecting pieces between the slope protection stake, fossil fragments skeleton deviates from one side of slope protection stake is provided with the panel layer that the full fossil fragments skeleton deviates from slope protection stake one side surface, the panel layer with be provided with between the slope protection stake and solidify the solidification body that forms by the concrete solidification, fossil fragments skeleton and connecting piece all bury the inside of solidification body.

Through adopting above-mentioned technical scheme, through setting up the fossil fragments skeleton in the inside of foundation ditch to spread full panel layer in the one side that the fossil fragments skeleton deviates from the slope protection stake, thereby make and form a space of pouring between panel layer and the slope protection stake, pour the concrete to the inside of pouring the space, form the solidification body after the concrete solidifies and thus accomplish the backfill in fertile groove, at this moment, the structure in the foundation ditch can be in the state of incompletely finishing, realizes backfilling the fertile groove in advance under the state of incompletely finishing of the underground structure in the foundation ditch inside.

Optionally, a support frame is disposed on a side of the panel layer facing away from the keel frame.

Through adopting above-mentioned technical scheme, set up the support frame in one side that the panel layer deviates from fossil fragments skeleton to when pouring concrete, the support frame can support panel layer and fossil fragments skeleton, makes fossil fragments skeleton and panel layer be difficult for taking place to warp.

Optionally, the panel layer is formed by the concatenation of polylith high-strength cement pressure board, high-strength cement pressure board passes through the mounting and fixes on the fossil fragments skeleton, the splice seam between the adjacent high-strength cement pressure board with fossil fragments skeleton's surface is relative.

By adopting the technical scheme, the splicing seams between the adjacent high-strength cement pressure plates are opposite to the surfaces of the keel frameworks, so that the concrete is not easy to leak from the adjacent high-strength cement pressure plates when the concrete is poured.

Optionally, the inside of high-strength cement pressure board is provided with many vertical runs through the fretwork hole of high-strength cement pressure board, and the fretwork hole of upper and lower adjacent high-strength cement pressure board is relative and intercommunication one by one, is provided with the stiffener between the fretwork hole of upper and lower adjacent high-strength cement pressure board, stiffener one end stretches into the fretwork hole of the high-strength cement pressure board that is located the top, the other end of stiffener stretches into the fretwork hole of the high-strength cement pressure board that is located the below.

Through adopting above-mentioned technical scheme, through stretching into the fretwork downthehole of the high-strength cement pressure plate that is located the top with the one end of stiffener, stretch into the fretwork downthehole of the high-strength cement pressure plate that is located the below with the other end of stiffener to strengthen the intensity of being connected between the high-strength cement pressure plate of upper and lower two-layer.

Optionally, the inside of high-strength cement pressure board is provided with many vertical runs through the fretwork hole of high-strength cement pressure board, and the fretwork hole of upper and lower adjacent high-strength cement pressure board is relative and intercommunication one by one, the high-strength cement pressure board towards one side of fossil fragments skeleton be provided with the slip casting hole that the fretwork hole is linked together, high-strength cement pressure board installs when on the fossil fragments skeleton, high-strength cement pressure board towards the surface of upper side and towards the surface of below all be provided with the slip casting passageway, the looks butt between the upper and lower adjacent high-strength cement pressure board.

Through adopting above-mentioned technical scheme, when carrying out concrete placement, the concrete can enter into the fretwork downthehole through the slip casting hole, and the concrete flows into the inside of slip casting passageway after entering into the fretwork downthehole, finally forms the solidification structure between the adjacent high-strength cement pressure board from top to bottom, seals the butt joint between the adjacent high-strength cement pressure board from top to bottom, and the concrete solidifies the back simultaneously, can strengthen the intensity of high-strength cement pressure board.

Optionally, a fixed anchor rod is arranged on one side, facing the keel frame, of the high-strength cement pressure plate, and the fixed anchor rod is buried in the solidified body.

By adopting the technical scheme, the connection strength between the solidification body and the high-strength cement pressure plate is increased, so that the solidification body and the high-strength cement pressure plate are not easy to separate.

Optionally, a metal mesh is disposed between the keel frame and the panel layer.

Through adopting above-mentioned technical scheme, set up the metal mesh between fossil fragments skeleton and panel layer, when carrying out concrete placement, the metal mesh can bear the extrusion force that a part of concrete applyed the panel layer to the difficult emergence separation of junction or the difficult cracked condition of occurrence of panel layer between messenger's panel layer and the fossil fragments skeleton.

Optionally, the fossil fragments skeleton is including the many horizontal fossil fragments that transversely set up, and horizontal fossil fragments are from supreme interval arrangement down, are parallel to each other between the horizontal fossil fragments, are provided with many vertical fossil fragments that set up along the length direction arrangement of horizontal fossil fragments between adjacent horizontal fossil fragments, vertical fossil fragments top links to each other with the horizontal fossil fragments that are located the upper strata, vertical fossil fragments bottom links to each other with the horizontal fossil fragments that are located the lower floor, the connecting piece is located horizontal fossil fragments and vertical fossil fragments intersection position department.

Through adopting above-mentioned technical scheme, the connecting piece is located the crossing position of horizontal fossil fragments and vertical fossil fragments, makes the connecting piece when pulling fossil fragments skeleton, and fossil fragments skeleton atress is more even.

The fertilizer slot backfilling method provided by the application adopts the following technical scheme:

a fertilizer groove backfilling method for constructing the fertilizer groove backfilling structure comprises the following specific steps:

s1, assembling a keel framework: assembling the keels according to the keel frame design drawing;

s2, hoisting a keel framework: hanging the assembled keel frame into the foundation pit, and fixing the bottom end of the keel frame and the bottom plate cushion layer of the foundation pit;

s3, connecting a keel framework with the slope protection pile: the keel framework and the slope protection piles are fixed together through the connecting rods;

s4, snapping lines at the installation positions, namely snapping lines are performed on the surface of one side of the keel framework, which is away from the slope protection piles, according to the specifications of the high-strength cement pressure plates, and the installation positions of the high-strength cement pressure plates are marked;

s5, mounting a high-strength cement pressure plate: the high-strength cement pressure plates are sequentially installed from one end of the keel frame until the surfaces of the keel frame are fully paved;

s6, pouring lightweight aggregate concrete: pouring lightweight aggregate concrete between the panel layer and the slope protection piles, wherein the pouring should be layered, the pouring height is not more than 1.2m each time, the pouring is repeated in a circulating way, and the upper pouring is performed after the lightweight aggregate concrete reaches final setting.

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

1. constructing a keel framework in a foundation pit, and paving a panel layer on one side, away from a slope protection pile, of the keel framework, so that a pouring space is formed between the panel layer and the slope protection pile, pouring concrete into the pouring space, and forming a solidification body after the concrete is solidified, thereby completing backfilling of a fertilizer groove, wherein at the moment, a structure in the foundation pit can be in an incompletely completed state, and the backfilling of the fertilizer groove in advance in an incompletely completed state of an underground structure in the foundation pit is realized;

2. when concrete pouring is carried out, concrete can enter the hollow hole through the grouting hole, the concrete flows into the grouting channel after entering the hollow hole, a solidification structure is finally formed between the upper and lower adjacent high-strength cement pressure plates, the butt joint between the upper and lower adjacent high-strength cement pressure plates is sealed, and meanwhile, after the concrete is solidified, the strength of the high-strength cement pressure plates can be enhanced;

3. set up the metal mesh between fossil fragments skeleton and panel layer, when carrying out concrete placement, the metal mesh can bear the extrusion force that a part of concrete applyed the panel layer to the difficult emergence separation of junction or the difficult cracked condition that takes place of panel layer between messenger's panel layer and fossil fragments skeleton.

Drawings

Fig. 1 is a schematic structural view of a fertilizer slot backfill structure according to a first embodiment of the present application;

fig. 2 is an exploded view of the connection between the keel frame and the high strength cement pressure plate according to the first embodiment of the present application;

FIG. 3 is a schematic view of the structure of the inside of a high strength cement pressure plate according to the first embodiment of the present application;

FIG. 4 is an exploded view of the connection structure between the upper and lower high-strength cement pressure plates according to the first embodiment of the present application;

fig. 5 is a schematic diagram of a connection structure between upper and lower high-strength cement pressure plates according to the second embodiment of the present application.

Reference numerals illustrate: 1. slope protection piles; 2. a keel frame; 21. a transverse keel; 22. a vertical keel; 3. a connecting rod; 4. a panel layer; 41. a high-strength cement pressure plate; 411. a hollowed hole; 412. pouring the channel; 413. grouting holes; 42. fixing the anchor rod; 5. a support frame; 6. a solidified body; 7. a metal mesh; 8. and a reinforcing rod.

Detailed Description

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

Example 1

The embodiment of the application discloses a fertilizer groove backfill structure.

Referring to fig. 1, the fertilizer tank backfill structure comprises a slope protection pile 1 arranged along the surface of a pit wall of a foundation pit and a keel frame 2 which is positioned inside the foundation pit and is arranged at intervals between the slope protection pile 1. The keel frame 2 is vertically arranged, and the bottom end of the keel frame 2 is fixedly connected with the top and bottom pad plate of the foundation pit. Be provided with a plurality of connecting rods 3 between fossil fragments skeleton 2 and the bank protection stake 1, connecting rod 3 adopts the angle steel, and connecting rod 3 one end is together fixed with the bank protection stake 1, and connecting rod 3's the other end is together fixed with fossil fragments skeleton 2.

A panel layer 4 is arranged on the surface of one side of the keel frame 2, which is back to the slope protection pile 1, and the panel layer 4 is fully paved on one side of the keel frame 2, which is back to the slope protection pile 1. A supporting frame 5 is arranged on one side of the panel layer 4, which is back to the keel frame 2, and the supporting frame 5 is fixed at the pit bottom of the foundation pit and supports the panel layer 4 and the keel frame 2. A solidification body 6 formed by pouring and solidifying lightweight aggregate concrete is filled between the panel layer 4 and the slope protection pile 1, and the keel frame 2 and the connecting rod 3 are buried in the solidification body 6.

Referring to fig. 1 and 2, the keel frame 2 includes a plurality of transverse keels 21 arranged transversely, the arrangement directions of the transverse keels 21 are arranged at intervals from bottom to top, and the transverse keels 21 are parallel to each other. A plurality of vertical keels 22 are arranged between the adjacent transverse keels 21, the vertical keels 22 are vertically arranged, the vertical keels 22 are arranged at intervals along the length direction of the transverse keels 21, the top ends of the vertical keels 22 are fixedly welded with the transverse keels 21 positioned above, and the bottom ends of the vertical keels 22 are fixedly welded with the transverse keels 21 positioned below. And a communication cavity for communicating the outer side surface and the inner side surface of the keel frame 2 is enclosed between the two upper and lower adjacent transverse keels 21 and the two adjacent vertical keels 22. The location where the connecting rod 3 connects to the keel frame 2 is at the intersection between the transverse 21 and vertical 22 keels.

The panel layer 4 is formed by splicing a plurality of high-strength cement pressure plates 41. The high-strength cement pressure plate 41 is fixed to the keel frame 2 by screws. When the high-strength cement pressure plate 41 is paved on the surface of one side of the keel frame 2, which is away from the slope protecting pile 1, the high-strength cement pressure plate 41 covers the communicating cavity on the keel frame 2. The butt joint between the upper and lower adjacent high-strength cement pressure plates 41 is opposite to the transverse keel 21, and the butt joint between the left and right adjacent high-strength cement pressure plates 41 is opposite to the vertical keel 22.

A metal net 7 is arranged between the keel frame 2 and the panel layer 4, and the metal net 7 is fixed between the keel frame 2 and the panel layer 4. When the setting body 6 is poured, the metal mesh 7 can counteract the pressing force exerted by a part of the concrete on the panel layer 4, so that the high-strength cement pressure plate 41 is protected.

Referring to fig. 2 and 3, in order to increase the connection strength between the high-strength cement pressure plate 41 and the solidification body 6, a fixing anchor rod 42 extending into the interior of the communication cavity of the keel frame 2 is provided on the surface of one side of the high-strength cement pressure plate 41 facing the keel frame 2, and the fixing anchor rod 42 is fixed in the solidification body 6 during concrete casting.

Referring to fig. 2 and 4, a plurality of hollow holes 411 penetrating the high-strength cement pressure plate vertically are formed in the high-strength cement pressure plate 41, and the hollow holes 411 of two layers of high-strength cement pressure plates 41 adjacent to each other vertically are opposite to each other and are communicated with each other. A reinforcing rod 8 is arranged between the two layers of high-strength cement pressure plates 41 adjacent to each other, one end of the reinforcing rod 8 extends into the hollow hole 411 of the high-strength cement pressure plate 41 positioned below, and the other end of the reinforcing rod 8 extends into the hollow hole 411 of the high-strength cement pressure plate 41 positioned above.

When the concreting body 6 is poured, the reinforcing rod 8 can connect the upper layer high-strength cement pressure plates 41 and the lower layer high-strength cement pressure plates 41, so that when the lightweight aggregate concrete forming the concreting body 6 extrudes the high-strength cement pressure plates 41, the butt joint between the upper layer high-strength cement pressure plates 41 and the lower layer high-strength cement pressure plates 41 is not easy to separate, and the possibility of slurry leakage is reduced.

The embodiment of the application also discloses a fertilizer slot backfilling method, which comprises the following specific steps:

s1, assembling a keel framework:

the keel assembly is carried out strictly according to the keel framework design drawing, the upper and lower ends of the vertical keels 22 are inserted into the upper and lower adjacent transverse keels 21, and the vertical and positioning are accurately adjusted and then fixed by self-tapping screws.

S2, hoisting a keel framework:

and (3) hanging the assembled keel frame 2 into the foundation pit, and fixing the bottom end of the keel frame 2 and the bottom plate cushion layer of the foundation pit.

S3, connecting a keel framework with the slope protection pile:

after the keel frame 2 is installed, the keel frame is fixedly connected with the slope protection pile 1 of the foundation pit, the keel frame is connected with the slope protection pile 1 by adopting an A10 expansion screw and a connecting rod 3, the connecting rod 3 is connected with the slope protection pile 1, the horizontal distance of the connecting rod 3 is 800mm, the vertical distance of the connecting rod is 1200mm, and the pulling point of the connecting rod is arranged on the intersection point of the transverse keel 21 and the vertical keel 22.

S4, spring line at the installation position:

the high-strength cement pressure plate 41 is a high-strength cement pressure plate aged for 28 days or more. And the surface of one side of the keel frame 2, which is far away from the slope protection pile 1, is sprung according to the specification of the high-strength cement pressure plate 41, and the installation position of the high-strength cement pressure plate 41 is marked.

S5, mounting a high-strength cement pressure plate:

the high-strength cement pressure plates are installed after being drawn according to the keel size of the keel frame before being installed, and the high-strength cement pressure plates 41 are installed sequentially from one end of the keel frame 2 until the surface of one side, facing away from the slope protection pile 1, of the keel frame 2 is fully paved.

The high-strength cement pressure plate 41 is connected with the keel frame 2 by adopting screws, and the following regulations are met:

1) The vertical seam of the high-strength cement pressure plate 41 is opposite to the vertical keel 22.

2) The screws are preferably self-drilling and self-tapping screws with dovetail countersunk heads, the vertical distance is not more than 200mm, the nail heads are sunk into the surface of the high-strength cement pressure plate 41, the sunk depth of the nail head surface is not more than 1mm, the high-strength cement pressure plate 41 is not cut off, and the distance from the edge and the end of the plate is at least 9mm; when the tapping screw is fixed, the high-strength cement pressure plate 41 must be tightly fixed with the keel frame 2.

3) The width of the joint between the high-strength cement pressure plates 41 is preferably not more than 3mm, the vertical joint of the high-strength cement pressure plates 41 is arranged in the center of the vertical keel 22, the joint of the high-strength cement pressure plates 41 is subjected to sealing treatment, and the overlapping width of the high-strength cement pressure plates 41 and the keel framework 2 is not less than 15mm.

S6, pouring lightweight aggregate concrete:

the lightweight aggregate concrete is stirred on site, a proper amount of additive is added in the stirring process, the mixture is stirred by a horizontal stirrer and then is put into transfer equipment, an auger in the transfer equipment continuously and slowly rotates, and the mixture is conveyed to a working surface by a pumping machine. And pouring the lightweight aggregate concrete in layers, wherein the pouring height is not more than 1.2m each time, the pouring is repeated, and the upper pouring is performed after the lightweight aggregate concrete reaches final setting.

Example two

Referring to fig. 5, the second embodiment differs from the first embodiment in that: the high-strength cement pressure plate 41 is provided with pouring channels 412 on the surface facing the upper side and the surface facing the lower side, and the pouring channels 412 are communicated with the hollow holes 411. When the upper layer high-strength cement pressure plates 41 and the lower layer high-strength cement pressure plates 41 are spliced, the upper layer high-strength cement pressure plates 41 and the lower layer high-strength cement pressure plates 41 are abutted. The pouring channel 412 on the surface of the upper high-strength cement pressure plate 41 facing downwards is communicated with the pouring channel 412 on the surface of the lower high-strength cement pressure plate 41 facing upwards and spliced into a pouring cavity.

The surface of the high-strength cement pressure plate 41 facing the communicating cavity is provided with grouting holes 413 communicated with the communicating cavity, and the number of the grouting holes 413 is the same as that of the hollowed holes 411. The grouting holes 413 are opposite to the hollow holes 411 one by one and are communicated with each other.

When the lightweight aggregate concrete is poured, the lightweight aggregate concrete can flow into the hollow holes 411 through the grouting holes 413 and flow into pouring cavities spliced between the high-strength cement pressure plates 41 along the hollow holes 411, after the lightweight aggregate concrete is solidified, the tightness of the splicing seams between the upper layer of high-strength cement pressure plates 41 and the lower layer of high-strength cement pressure plates 41 can be improved, and meanwhile, the connection strength between the solidified body 6 and the high-strength cement pressure plates 41 can be enhanced.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. The utility model provides a fertile groove backfill structure which characterized in that: including slope protection stake (1) that set up along the wall surface of foundation ditch and be located inside the foundation ditch and with fossil fragments skeleton (2) that slope protection stake (1) interval set up, fossil fragments skeleton (2) with link to each other through a plurality of connecting pieces between slope protection stake (1), fossil fragments skeleton (2) deviate from one side of slope protection stake (1) is provided with the panel layer (4) that full fossil fragments skeleton (2) deviate from slope protection stake (1) one side surface, panel layer (4) with be provided with between slope protection stake (1) by the solidification body (6) that the concrete set formed, fossil fragments skeleton (2) and connecting piece all bury the inside of solidification body (6).

2. The fertilizer slot backfill structure of claim 1, wherein: one side of the panel layer (4) back to the keel frame (2) is provided with a supporting frame (5).

3. The fertilizer slot backfill structure of claim 1, wherein: the panel layer (4) is formed by splicing a plurality of high-strength cement pressure plates (41), the high-strength cement pressure plates (41) are fixed on the keel frame (2) through fixing pieces, and splicing seams between adjacent high-strength cement pressure plates (41) are opposite to the surface of the keel frame (2).

4. A manure pit backfill structure according to claim 3, wherein: the inside of high-strength cement pressure plate (41) is provided with many vertical runs through fretwork hole (411) of high-strength cement pressure plate (41), and the fretwork hole (411) of upper and lower adjacent high-strength cement pressure plate (41) are relative and intercommunication one by one, are provided with stiffener (8) between fretwork hole (411) of upper and lower adjacent high-strength cement pressure plate (41), stiffener (8) one end stretches into in fretwork hole (411) of high-strength cement pressure plate (41) that are located the top, the other end of stiffener (8) stretches into in fretwork hole (411) of high-strength cement pressure plate (41) that are located the below.

5. A manure pit backfill structure according to claim 3, wherein: the inside of high-strength cement pressure board (41) is provided with many vertical runs through fretwork hole (411) of high-strength cement pressure board (41), and the fretwork hole (411) of upper and lower adjacent high-strength cement pressure board (41) are relative and intercommunication one by one, one side of high-strength cement pressure board (41) towards fossil fragments skeleton (2) be provided with grouting hole (413) that fretwork hole (411) are linked together, high-strength cement pressure board (41) are in when installing on fossil fragments skeleton (2), high-strength cement pressure board (41) all are provided with grouting channel towards the surface of top and towards the surface of below, butt between upper and lower adjacent high-strength cement pressure board (41).

6. A manure pit backfill structure according to claim 3, wherein: one side of the high-strength cement pressure plate (41) facing the keel frame (2) is provided with a fixed anchor rod (42), and the fixed anchor rod (42) is buried in the solidification body (6).

7. The fertilizer slot backfill structure of claim 1, wherein: a metal net (7) is arranged between the keel frame (2) and the panel layer (4).

8. The fertilizer slot backfill structure of claim 1, wherein: the utility model provides a fossil fragments skeleton (2) is including horizontal many horizontal fossil fragments (21) that set up, and horizontal fossil fragments (21) are from supreme interval arrangement down, are parallel to each other between horizontal fossil fragments (21), are provided with many vertical fossil fragments (22) that set up along the length direction of horizontal fossil fragments (21) between adjacent horizontal fossil fragments (21), vertical fossil fragments (22) top links to each other with horizontal fossil fragments (21) that are located the upper strata, vertical fossil fragments (22) bottom links to each other with horizontal fossil fragments (21) that are located the lower floor, the connecting piece is located horizontal fossil fragments (21) and vertical fossil fragments (22) intersection position department.

9. A fertilizer slot backfill method for constructing the fertilizer slot backfill structure of any one of claims 3-6, characterized by: the method comprises the following specific steps:

s1, assembling a keel framework: carrying out keel assembly according to the design drawing of the keel frame (2);

s2, hoisting a keel framework: hanging the assembled keel frame (2) into the foundation pit, and fixing the bottom end of the keel frame (2) and the foundation pit bottom plate cushion layer;

s3, connecting a keel framework with the slope protection pile: the keel framework (2) and the slope protection piles (1) are fixed together through the connecting rods (3);

s4, snapping lines at the installation positions, namely snapping lines are performed on the surface of one side, away from the slope protection pile (1), of the keel frame (2) according to the specification of the high-strength cement pressure plate (41), and the installation positions of the high-strength cement pressure plate (41) are marked;

s5, mounting a high-strength cement pressure plate: the high-strength cement pressure plates (41) are sequentially installed from one end of the keel frame (2) until the surfaces of the keel frame (2) are fully paved;

s6, pouring lightweight aggregate concrete: and pouring lightweight aggregate concrete between the panel layer (4) and the slope protection piles (1), wherein the pouring is layered, the pouring height is not more than 1.2m each time, the pouring is repeated, and the upper pouring is performed after the lightweight aggregate concrete reaches final setting.