CN215441916U

CN215441916U - Clay foundation earth excavation is with slope control structure

Info

Publication number: CN215441916U
Application number: CN202121739541.8U
Authority: CN
Inventors: 刘红
Original assignee: Guangdong Hongzhan Construction Engineering Co ltd
Current assignee: Guangdong Hongzhan Construction Engineering Co ltd
Priority date: 2021-07-28
Filing date: 2021-07-28
Publication date: 2022-01-07
Anticipated expiration: 2031-07-28

Abstract

The utility model discloses a slope control structure for clay foundation earthwork excavation, which relates to the technical field of earthwork excavation and solves the problems of large vibration, high noise, lower wall rigidity, poor seepage-proofing performance and difficulty in adapting to construction of different soil environments in the construction process of a foundation pit. The continuous wall of the foundation pit replaces a straight foundation wall, construction vibration can be reduced, noise is low, the wall body is high in rigidity, the anti-seepage performance is good, disturbance to the surrounding foundation is avoided, and the supporting and protecting frame and the upright post have high bearing capacity and wide application range to soil.

Description

Clay foundation earth excavation is with slope control structure

Technical Field

The utility model relates to the technical field of earth excavation, in particular to a clay foundation slope control structure for earth excavation.

Background

Before the earthwork construction, the balance calculation of excavation and filling is carried out, the shortest earthwork transport distance, reasonable construction procedures of each engineering project and the like are comprehensively considered, the earthwork balance allocation is well carried out, and the repeated excavation and transportation are reduced. The earthwork balance allocation is combined with urban planning and farmland water conservancy as far as possible to transport the residual soil to a specified spoil area at one time, so as to achieve civilized construction.

Present clay ground slope control structure for earthwork excavation, patent like application number CN201922309793.6, including underground continuous wall and soleplate, still include frame support and platform beam slab, the frame supports including platform pile group, platform stand group, strengthen the bridging group between horizontal connecting rod group and stand, the top and the fixed connection of platform pile are inserted to the bottom one-to-one of platform stand, be provided with at least three-layer reinforced concrete horizontal brace between first row of platform stand and the underground continuous wall, the platform stand is at the bottom of the foundation plate thickness within range fixedly connected with sealing plate, the platform stand is at the pre-buried channel-section steel of platform beam plate thickness within range fixedly connected with. The platform structure is arranged to meet the requirement of earth transportation of the deep foundation pit, construction is convenient, construction procedures are few, construction efficiency is high, and meanwhile, the platform structure is used as a stacking site for light materials, so that the problem that the site around the foundation pit is insufficient in the construction stage of an underground structure is solved.

Aiming at the related technologies, the inventor thinks that the foundation pit construction process has large vibration, high noise, lower wall rigidity and poor seepage-proofing performance, and the foundation pit construction process is difficult to adapt to different soil environment constructions.

SUMMERY OF THE UTILITY MODEL

The utility model provides a gradient control structure for clay foundation earth excavation, which aims to solve the problems that vibration is large, noise is high, wall rigidity is low, seepage-proofing performance is poor, and construction in different soil environments is difficult to adapt to in the foundation pit construction process.

The utility model provides a clay foundation slope control structure for earth excavation, which adopts the following technical scheme:

a clay foundation slope control structure for earth excavation comprises a foundation pit which is of a rectangular cavity structure, and two supporting and protecting frames are arranged in the foundation pit, the supporting and protecting frames are formed by splicing rectangular rods poured by reinforced concrete, and two supporting and protecting frames are distributed in a vertical parallel way, a first retaining wall is sleeved outside the supporting and protecting frame below the supporting and protecting frames, and a second retaining wall is sleeved outside the upper supporting and protecting frame, the upper and lower supporting and protecting frames are respectively connected with the inner wall of the foundation pit through the second retaining wall and the first retaining wall, an upright post is arranged at the bottom of the lower supporting and protecting frame, the bottom end of the upright post is connected with the foundation pit, the upper and lower supporting and protecting frames are connected by an upright post, the second retaining wall and the first retaining wall are both rectangular frame structures, and the four diagonal positions are provided with suspensions, the suspensions are provided with four inclined struts, and the inclined struts are connected with the inner wall of the foundation pit.

By adopting the technical scheme, when the expanded cement mortar is poured into the foundation pit, the continuous wall of the foundation pit replaces a straight foundation wall, the construction vibration can be reduced, the noise is low, the wall rigidity is high, the anti-seepage performance is good, the disturbance to the surrounding foundation is avoided, the composition of the supporting and protecting frame and the upright column has very large bearing capacity, the application range to the soil is very wide, and the construction can be carried out in the foundation of a weak impact layer, a medium-hard stratum, a compact gravel layer and rocks.

Optionally, the foundation ditch is including pouring the bottom and supporting the bolster, foundation ditch cavity bottom is equipped with pours the bottom, and pours the bottom surface and apply paint with a brush and have waterproof coating, it is equipped with the supporting bolster to pour the bottom top, and supports the bolster and be "well" style of calligraphy distribution, support bolster and support fender bracket phase-match, and the even fixed mounting of stand is in supporting the bolster top.

Through adopting above-mentioned technical scheme, because it has waterproof coating to pour bottom surface coating with a brush, avoid the great soil horizon water of moisture content to upwards permeate, prevent in moisture content infiltration foundation ditch, guarantee foundation ditch overall structure's stability.

Optionally, the foundation ditch still includes diaphragm wall and bank protection, the first section of foundation ditch cavity lateral wall is equipped with the diaphragm wall, and the diaphragm wall is the vertical wall of corrugate, the diaphragm wall supports with the below and protects frame and first barricade position phase-match, and first barricade supports with the diaphragm wall and is connected, the first section of foundation ditch cavity lateral wall is equipped with the bank protection, and the bank protection is 10~45 degrees slope wall, the bank protection supports with the top and protects frame and second barricade position phase-match, and the second barricade supports with the bank protection and is connected.

Through adopting above-mentioned technical scheme, when filling expanded cement mortar in to the foundation ditch, because half section is equipped with the continuous wall down on the cavity lateral wall of foundation ditch, and the continuous wall is the vertical wall of corrugate to increase the adhesive force to cement mortar, improve wall body intensity, and can alleviate vibration amplitude, noise reduction.

Optionally, the support guard frame comprises a butt joint slot, the support guard frame is provided with a butt joint slot, the butt joint slot is located at the joint of the support guard frame concrete rectangular rod, and the butt joint slot is matched with the upright post in position.

Through adopting above-mentioned technical scheme, support and protect the frame and can improve the inner wall stability of foundation ditch, support moreover and protect a simple structure, save building material.

Optionally, the second retaining wall comprises a chamfer, the chamfer is formed in the inner peripheral surface of the second retaining wall frame, and the chamfer is 10-45 degrees.

Through adopting above-mentioned technical scheme, the second revetment and slope protection inclined plane phase-match can guarantee domatic level and smooth to reach the design slope.

Optionally, the stand includes baffle and connecting reinforcement, the stand is reinforced concrete poured's square pole, and the stand top is equipped with the baffle, the baffle top is equipped with connecting reinforcement, and connecting reinforcement is the distribution of rectangle array mode, works as when the stand is connected state with the support fender frame, the baffle protects frame looks joint through butt joint slot and support, and connecting reinforcement alternates in the butt joint slot.

By adopting the technical scheme, when the stand column and the support protection frame are in a connection state, the baffle is clamped with the support protection frame through the butt joint slot, and the connecting steel bar is inserted in the butt joint slot, so that the stand column and the support protection frame are simple in connection mode and convenient to construct and install.

Optionally, the suspension includes arc reinforcing bar, support bar, ejector pad and connecting block, the arc reinforcing bar is the rectangle array mode and distributes, and arc reinforcing bar both ends fixed mounting has the connecting block, arc reinforcing bar arc angular position is equipped with the ejector pad, and ejector pad and second barricade or first barricade support connection, be equipped with support bar between the arc reinforcing bar arc angular position both sides to support bar passes through welded mode and arc reinforcing bar fixed connection.

Through adopting above-mentioned technical scheme, support through the suspension, make first barricade and second barricade and foundation ditch support more firm, improve the stability of structure greatly.

Optionally, the bracing includes go-between and fixed plate, the bracing is the stock that the slope mode distributes, and the bracing bottom is equipped with the go-between to the go-between suit is on the arc reinforcing bar, the bracing top is equipped with the fixed plate, and the fixed plate passes through rivet and foundation ditch fixed connection.

Through adopting above-mentioned technical scheme, utilize the bracing to fix the suspension, effectively prevent that the suspension from taking place the landing skew, its connected mode is simple, the equipment and the dismantlement of being convenient for.

In summary, the utility model includes at least one of the following advantages:

1. the continuous wall of the foundation pit replaces a straight foundation wall, so that construction vibration can be reduced, noise is low, the wall body is high in rigidity, the anti-seepage performance is good, no disturbance is caused to the surrounding foundation, and the supporting and protecting frame and the upright post have high bearing capacity and wide application range to soil;

2. through the suspension support, make first barricade and second barricade and foundation ditch support more firmly, improve the stability of structure greatly, utilize the bracing to fix the suspension simultaneously, prevent effectively that the suspension from taking place the landing skew, its connected mode is simple, the equipment and the dismantlement of being convenient for.

Drawings

FIG. 1 is a schematic overall structure diagram of a first embodiment of the present invention;

fig. 2 is a schematic view of a foundation pit structure according to a first embodiment of the utility model;

fig. 3 is a schematic view of an exploded structure of a support frame and a column according to a first embodiment of the present invention;

FIG. 4 is an enlarged view of the portion A of FIG. 2 according to an embodiment of the present invention;

FIG. 5 is a schematic view of a second embodiment of the utility model showing a portion of a first retaining wall and a suspension structure.

Description of reference numerals: 1. a foundation pit; 101. pouring a bottom layer; 102. a support pad seat; 103. a continuous wall; 104. slope protection; 2. supporting a protective frame; 201. butting slots; 3. a first retaining wall; 4. a second retaining wall; 401. chamfering; 5. a column; 501. a baffle plate; 502. connecting reinforcing steel bars; 6. a suspension; 601. arc-shaped reinforcing steel bars; 602. supporting the reinforcing steel bars; 603. a push block; 604. connecting blocks; 7. bracing; 701. a connecting ring; 702. and (7) fixing the plate.

Detailed Description

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

The first embodiment is as follows:

the embodiment of the utility model discloses a clay foundation slope control structure for earth excavation. Referring to fig. 1, a foundation pit 1 is a rectangular cavity structure, two supporting guardrails 2 are arranged in the foundation pit 1, the supporting guardrails 2 are formed by splicing rectangular rods poured by reinforced concrete, the two supporting guardrails 2 are distributed in an up-down parallel mode, a first retaining wall 3 is sleeved outside the supporting guardrails 2 at the lower part, a second retaining wall 4 is sleeved outside the supporting guardrails 2 at the upper part, the supporting guardrails 2 at the upper part and the lower part are respectively connected with the inner wall of the foundation pit 1 through the second retaining wall 4 and the first retaining wall 3 in a supporting mode, a stand 5 is arranged at the bottom of the supporting guardrails 2 at the lower part, the bottom end of the stand 5 is connected with the foundation pit 1, the upper supporting guardrails 2 and the lower supporting guardrails 2 are connected through the stand 5, the second retaining wall 4 and the first retaining wall 3 are of a rectangular frame structure, suspensions 6 are arranged at the diagonal positions of four positions, four inclined struts 7 are arranged on the suspensions 6, and the inclined struts 7 are connected with the inner wall of the foundation pit 1.

Referring to fig. 1 and 2, foundation ditch 1 is including pouring bottom 101 and supporting

base

102, 1 cavity bottom of foundation ditch is equipped with pours bottom 101, and pour bottom 101 surface coating and have water proof coating, it is equipped with supporting base 102 to pour bottom 101 top, and support base 102 is "well" style of calligraphy and distribute, support base 102 and support protect 2 phase-matchs of frame, and the even fixed mounting of stand 5 is on supporting base 102 top, because it has water proof coating to pour bottom 101 surface coating and have, avoid the great soil horizon water of moisture content to upwards permeate, prevent in moisture content infiltration foundation ditch 1, guarantee foundation ditch 1 overall structure's stability.

Referring to fig. 1 and 2, foundation pit 1 still includes continuous wall 103 and

bank protection

104, 1 cavity lateral wall lower half section of foundation pit is equipped with continuous wall 103, and continuous wall 103 is the vertical wall of corrugate, continuous wall 103 supports

fender frame

2 and 3 position phase-matches of first barricade with the below, and first barricade 3 supports with continuous wall 103 to be connected, 1 cavity lateral wall upper half section of foundation pit is equipped with bank protection 104, and bank protection 104 is 10~45 degrees slope wall, bank protection 104

supports fender frame

2 and 4 position phase-matches of second barricade with the top, and second barricade 4 supports with bank protection 104 to be connected, when filling expansion cement mortar in foundation pit 1, because 1 cavity lateral wall lower half section of foundation pit is equipped with continuous wall 103, and continuous wall 103 is the vertical wall of corrugate, thereby increase the adhesive force to cement mortar, improve wall body strength, and can alleviate vibration amplitude, noise reduction.

Referring to fig. 3 and 4, the support protection frame 2 comprises butt joint slots 201, the butt joint slots 201 are formed in the support protection frame 2, the butt joint slots 201 are located at the joint of the concrete rectangular rods of the support protection frame 2, the butt joint slots 201 are matched with the positions of the columns 5, the support protection frame 2 can improve the stability of the inner wall of the foundation pit 1, the support protection frame 2 is simple in structure, and building materials are saved.

Referring to fig. 3 and 4, second wall 4 includes chamfer 401, and chamfer 401 has been seted up to 4 frame inner peripheral surfaces of second wall, and chamfer 401 is 10~45 degrees inclined planes, and second wall 4 and bank protection 104 inclined plane phase-match can guarantee domatic level and smooth to reach the design slope.

Referring to fig. 3 and 4, the upright column 5 includes a baffle 501 and connecting bars 502, the upright column 5 is a rectangular rod poured by reinforced concrete, the baffle 501 is arranged on the top end of the upright column 5, the connecting bars 502 are arranged on the top end of the baffle 501, and the connecting bars 502 are distributed in a rectangular array mode, when the upright column 5 and the supporting protection frame 2 are in a connection state, the baffle 501 is connected with the supporting protection frame 2 through the butt joint slot 201 in a clamping manner, and the connecting bars 502 are inserted into the butt joint slot 201 in a penetrating manner, so that the upright column 5 and the supporting protection frame 2 are simple in connection mode and convenient to construct and install.

The implementation principle of the slope control structure for earth excavation of the clay foundation provided by the embodiment of the utility model is as follows:

when the expanded cement mortar is poured into the foundation pit 1, the continuous wall 103 of the foundation pit 1 replaces a straight foundation wall, construction vibration can be reduced, noise is low, the wall body is high in rigidity and good in anti-seepage performance, no disturbance is caused to the surrounding foundation, the supporting and protecting frame 2 and the upright post 5 are high in bearing capacity, the application range to soil is wide, and construction can be carried out in the foundation of a weak impact layer, a medium-hard stratum, a compact gravel layer and rocks.

Example two:

referring to fig. 5, the suspension 6 includes arc-shaped steel bars 601, support steel bars 602, push blocks 603 and connecting blocks 604, the arc-shaped steel bars 601 are distributed in a rectangular array manner, the connecting blocks 604 are fixedly mounted at two ends of the arc-shaped steel bars 601, the push blocks 603 are arranged at arc-shaped corners of the arc-shaped steel bars 601, the push blocks 603 are in supporting connection with the second retaining wall 4 or the first retaining wall 3, the support steel bars 602 are arranged between two sides of the arc-shaped corners of the arc-shaped steel bars 601, and the support steel bars 602 are fixedly connected with the arc-shaped steel bars 601 in a welding manner; bracing 7 includes go-between 701 and fixed plate 702, the stock that bracing 7 distributes for the slope mode, and 7 bottoms of bracing are equipped with go-between 701, and go-between 701 suit is on arc reinforcing bar 601, 7 tops of bracing are equipped with fixed plate 702, and fixed plate 702 passes through rivet and foundation ditch 1 fixed connection, support through suspension 6, it is more firm to make first barricade 3 and second barricade 4 support with foundation ditch 1, the stability of structure is greatly improved, utilize bracing 7 to fix suspension 6 simultaneously, effectively prevent that suspension 6 from taking place the landing skew, its connected mode is simple, be convenient for equipment and dismantlement.

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

Claims

1. The utility model provides a clay foundation earth excavation is with slope control structure which characterized in that: comprises a foundation pit (1), wherein the foundation pit (1) is of a rectangular cavity structure, two supporting and protecting frames (2) are arranged in the foundation pit (1), the supporting and protecting frames (2) are formed by splicing rectangular rods poured by reinforced concrete, the two supporting and protecting frames (2) are distributed in an up-down parallel mode, a first retaining wall (3) is sleeved outside the supporting and protecting frame (2) below, a second retaining wall (4) is sleeved outside the supporting and protecting frame (2) above, the upper and lower supporting and protecting frames (2) are respectively in supporting connection with the inner wall of the foundation pit (1) through the second retaining wall (4) and the first retaining wall (3), a stand column (5) is arranged at the bottom of the supporting and protecting frame (2) below, the bottom end of the stand column (5) is connected with the foundation pit (1), the upper and lower supporting and protecting frames (2) are connected through the stand column (5), and the second retaining wall (4) and the first retaining wall (3) are of a rectangular frame structure, and the four diagonal positions are provided with suspensions (6), the suspensions (6) are provided with four inclined struts (7), and the inclined struts (7) are connected with the inner wall of the foundation pit (1).

2. The clay foundation soil excavation of claim 1 is with slope control structure, its characterized in that: the foundation pit (1) is including pouring bottom (101) and supporting pad seat (102), foundation pit (1) cavity bottom is equipped with pours bottom (101), and pours bottom (101) surface coating with paint waterproof coating, it is equipped with supporting pad seat (102) to pour bottom (101) top, and supports pad seat (102) and distribute for "well" style of calligraphy, supporting pad seat (102) and support and protect frame (2) phase-match, and even fixed mounting in supporting pad seat (102) top of stand (5).

3. The clay foundation soil excavation of claim 2 is with slope control structure, its characterized in that: foundation ditch (1) still includes continuous wall (103) and bank protection (104), half section is equipped with continuous wall (103) under foundation ditch (1) cavity lateral wall, and continuous wall (103) are the vertical wall of corrugate, continuous wall (103) support fender frame (2) and first barricade (3) position phase-match with the below, and first barricade (3) support with continuous wall (103) and be connected, half section is equipped with bank protection (104) on foundation ditch (1) cavity lateral wall, and bank protection (104) be 10~45 degrees slope wall, bank protection (104) support fender frame (2) and second barricade (4) position phase-match with the top, and second barricade (4) support with bank protection (104) and are connected.

4. The clay foundation soil excavation of claim 3 is with slope control structure, its characterized in that: the supporting protection frame (2) comprises a butt joint slot (201), the butt joint slot (201) is formed in the supporting protection frame (2), the butt joint slot (201) is located at the joint of the concrete rectangular rod of the supporting protection frame (2), and the butt joint slot (201) is matched with the upright column (5);

stand (5) are including baffle (501) and connecting reinforcement (502), stand (5) are reinforced concrete pouring's square pole, and stand (5) top is equipped with baffle (501), baffle (501) top is equipped with connecting reinforcement (502), and connecting reinforcement (502) are the distribution of rectangle array mode, works as when stand (5) are connected state with support fender frame (2), baffle (501) protect frame (2) joint mutually through butt joint slot (201) and support, and connecting reinforcement (502) alternate in butt joint slot (201).

5. The clay foundation soil excavation of claim 3 is with slope control structure, its characterized in that: the second retaining wall (4) comprises a chamfer (401), the inner peripheral surface of the frame of the second retaining wall (4) is provided with the chamfer (401), and the chamfer (401) is 10-45 degrees.

6. The clay foundation soil excavation of claim 1 is with slope control structure, its characterized in that: suspension (6) include arc reinforcing bar (601), support bar (602), ejector pad (603) and connecting block (604), arc reinforcing bar (601) are the rectangular array mode and distribute, and arc reinforcing bar (601) both ends fixed mounting has connecting block (604), arc reinforcing bar (601) arc angular position is equipped with ejector pad (603), and ejector pad (603) and second barricade (4) or first barricade (3) support connection, be equipped with support bar (602) between arc reinforcing bar (601) arc angular position both sides to support bar (602) are through welded mode and arc reinforcing bar (601) fixed connection.

7. The clay foundation soil excavation of claim 6 is with slope control structure, its characterized in that: everywhere bracing (7) include go-between (701) and fixed plate (702), bracing (7) are the stock that the slope mode distributes, and bracing (7) bottom is equipped with go-between (701) to go-between (701) suit is on arc reinforcing bar (601), bracing (7) top is equipped with fixed plate (702), and fixed plate (702) pass through rivet and foundation ditch (1) fixed connection.