1. A box-type retaining wall construction structure for a deep and shallow pit junction area is characterized by comprising

The raft assembly (10) comprises a first raft (110) and a second raft (120) which are respectively arranged in a shallow pit area and a deep pit area;

the box-type retaining wall (20), the box-type retaining wall (20) comprises a first retaining wall (210) and a second retaining wall (220) which are oppositely arranged, the second retaining wall (220) is tightly attached to the pit wall of a deep and shallow pit, the first retaining wall (210) comprises a first wall body (2110) and a first reinforcing rib piece (2120) poured in the first wall body (2110), the second retaining wall (220) comprises a second wall body (2210) and a second reinforcing rib piece (2220) poured in the second wall body (2210), the top ends of the first reinforcing rib piece (2120) and the second reinforcing rib piece (2220) are embedded in the first raft (110), and the bottom ends of the first reinforcing rib piece (2120) and the second reinforcing rib piece (2220) are embedded in the second raft (120);

the building cushion plate (30) is located between the first wall body (2110) and the second wall body (2210) which are tightly attached to the bottom of the first raft (110), the building cushion plate (30) comprises a building bearing plate body (310) and connecting pieces (320) connected to two ends of the building bearing plate body (310), connecting portions (2250) matched with the connecting pieces (320) are respectively arranged on one side, opposite to the first wall body (2110) and the second wall body (2210), of the first wall body (2110) and the second wall body (2210), and the connecting pieces (320) are respectively fixed to the connecting portions (2250).

2. The box-type retaining wall construction structure at the junction area of deep and shallow pits according to claim 1, wherein an inclined third reinforcing rib member (2230) is arranged between the second reinforcing rib member (2220) and the first raft (110), one end of the third reinforcing rib member (2230) is fixedly connected with the second reinforcing rib member (2220), and the other end of the third reinforcing rib member (2230) is embedded in the first raft (110).

3. The box-type retaining wall construction structure in deep and shallow pit junction areas according to claim 1, wherein an inclined fourth reinforcing rib member (2240) is arranged between the second reinforcing rib member (2220) and the second raft (120), one end of the fourth reinforcing rib member (2240) is fixedly connected with the second reinforcing rib member (2220), and the other end of the fourth reinforcing rib member (2240) is embedded in the second raft (120).

4. The structure for constructing box-type retaining wall in deep and shallow pit junction area according to claim 1, wherein the width of the connection part (2250) is not less than 100mm, and the first wall (2110) and the second wall (2210) are each provided with a reinforcing structure at the connection part (2250).

5. The structure of claim 4, wherein the reinforcing structures are pre-embedded steel strips pre-embedded in the first wall (2110) and the second wall (2210).

6. The structure for constructing box-type retaining wall in junction area of deep and shallow pits as claimed in claim 1, wherein the thickness of the floor slab body (310) is 200mm, and the floor slab body (310) is a steel bar truss floor slab with model number TD 7-170.

7. The structure of claim 1, wherein the connecting member (320) is an additional reinforcing member, and the additional reinforcing member is fixedly connected to the deck body (310) by welding.

8. The structure of claim 1, wherein a plurality of supporting members (330) are uniformly distributed on the bottom of the floor deck body (310), and the supporting members (330) are i-shaped steel bars fixedly connected to the bottom of the floor deck body (310).

9. The box-type retaining wall construction structure of deep and shallow pit junction areas according to claim 1, wherein a first backfill structure (230) is arranged between the first wall (2110) and the second wall (2210) at the top of the second raft (120), and a second backfill structure (240) is arranged at the top of the second raft (120) at the side of the first wall (2110) facing away from the second wall (2210).

10. The structure for constructing a box-type retaining wall in a deep and shallow pit junction area according to claim 9, wherein a rigid ground structure (250) is provided on top of the second backfill structure (240).

Background

The inventor finds that the traditional mode of formwork erecting construction is large in construction quantity and complex in construction, a cavity is formed after the shear wall and a top plate of the shear wall are completed, and the template and the support cannot be recycled, so that the cost is high.

How to invent a box-type retaining wall construction structure in a deep and shallow pit junction area to improve the problems becomes a problem to be solved urgently by the technical personnel in the field.

Disclosure of Invention

In order to make up for the above deficiencies, the present application provides a box-type retaining wall construction structure in a deep and shallow pit junction region, aiming at improving the problems proposed in the above background art.

The embodiment of the application provides regional box barricade construction structures of deep and shallow pit handing-over, including raft subassembly, box barricade spare and building cushion plate spare.

The raft assembly comprises a first raft and a second raft which are respectively arranged in the shallow pit area and the deep pit area.

Box barricade spare is including relative first barricade and the second barricade that sets up, the second barricade is hugged closely the pithead setting of dark shallow pit, first barricade include first wall body and pour in first strengthening rib spare in the first wall body, the second barricade include the second wall body and pour in second strengthening rib spare in the second wall body, first strengthening rib spare with the equal pre-buried income in top of second strengthening rib spare in the first raft, first strengthening rib spare with the equal pre-buried income in bottom of second strengthening rib spare in the second raft.

The building cushion plate is located and is tightly attached to the bottom of the first raft plate between the first wall body and the second wall body, the building cushion plate comprises a building bearing plate body and connecting pieces connected to two ends of the building bearing plate body, connecting portions matched with the connecting pieces are respectively arranged on one side, opposite to the first wall body and the second wall body, of the first wall body, and the connecting pieces are respectively fixed to the connecting portions.

In a specific embodiment, an inclined third reinforcing rib piece is arranged between the second reinforcing rib piece and the first raft plate, one end of the third reinforcing rib piece is fixedly connected with the second reinforcing rib piece, and the other end of the third reinforcing rib piece is embedded into the first raft plate.

In a specific embodiment, an inclined fourth reinforcing rib is arranged between the second reinforcing rib and the second raft, one end of the fourth reinforcing rib is fixedly connected with the second reinforcing rib, and the other end of the fourth reinforcing rib is embedded into the second raft.

In a specific embodiment, the width of the connecting portion is not less than 100mm, and the first wall body and the second wall body are both provided with a reinforcing structure at the connecting portion.

In a specific embodiment, the reinforcing structures are embedded steel belts embedded in the first wall body and the second wall body.

In a specific embodiment, the thickness of the floor support plate body is 200mm, and the floor support plate body adopts a steel bar truss floor support plate with the model number TD 7-170.

In a specific embodiment, the connecting member is an additional reinforcing steel bar member, and the additional reinforcing steel bar member is fixedly connected with the floor support plate body in a welding mode.

In a specific implementation scheme, a plurality of supporting pieces are uniformly distributed at the bottom of the floor support plate body, and the supporting pieces are i-shaped steel fixedly connected to the bottom of the floor support plate body.

In a specific embodiment, a first backfill structure is arranged between the first wall and the second wall at the top of the second raft, and a second backfill structure is arranged at the top of the second raft at the side of the first wall, which is far away from the second wall.

In a particular embodiment, the top of the second backfill structure is provided with a rigid ground structure.

The invention has the beneficial effects that: according to the deep-shallow pit junction area box-type retaining wall construction structure obtained through the design, when the structure is used, the building bearing cushion plate is additionally arranged between the first wall body and the second wall body at the bottom of the first raft plate, when the structure is constructed, the wall thickness of one side, opposite to the first wall body and the second wall body, is respectively reduced by 100mm, so that two ends of the building bearing plate body are respectively lapped at the connecting part, the connecting parts are respectively fixed at the connecting parts, the first raft plate is constructed after the building bearing cushion plate is poured and constructed and maintained, construction is not required to be carried out by supporting and erecting a template and a support inside the box-type retaining wall, waste of the template and the support is further effectively avoided, particularly for deep pit shallow construction with ultra-high height, the construction cost can be effectively reduced, meanwhile, the construction efficiency is greatly improved, and the structure has high practicability.

Drawings

In order to more clearly explain the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort.

Fig. 1 is a schematic structural view of a box-type retaining wall construction structure in a deep and shallow pit junction area according to an embodiment of the present disclosure;

FIG. 2 is a schematic view of a box-type retaining wall structure according to an embodiment of the present invention;

FIG. 3 is a schematic structural view of a floor bolster according to an embodiment of the present disclosure;

fig. 4 is a schematic structural view of a floor support plate provided in the present application;

fig. 5 is a schematic view of a connection between a floor support plate body structure and a support member according to an embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of a connecting member and a connecting portion according to an embodiment of the present disclosure.

In the figure: 10-raft assemblies; 110-a first raft; 120-a second raft; 20-box type retaining wall parts; 210-a first retaining wall; 2110-first wall; 2120-a first stiffener piece; 220-a second retaining wall; 2210-a second wall; 2220-a second reinforcing bar member; 2230-a third reinforcing bar member; 2240-a fourth stiffener piece; 2250-a connecting part; 230-a first backfill structure; 240-a second backfill structure; 250-a rigid ground structure; 30-floor bolster plate members; 310-floor deck body; 320-a connector; 330-support member.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.

Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1 to 6, the present application provides a box-type retaining wall construction structure for deep and shallow pit junction areas, which includes raft assemblies 10, box-type retaining wall members 20, and floor bolster plate members 30.

Referring to fig. 1, the raft assembly 10 includes a first raft 110 and a second raft 120 respectively disposed in a shallow pit area and a deep pit area, a box-type barrier member 20 is disposed between the first raft 110 and the second raft 120, and the specific structure and construction size of the first raft 110 and the second raft 120 are designed according to a construction site, and the principle thereof will be clear to those skilled in the art and will not be described in detail herein.

Referring to fig. 1 and 2, the box-type retaining wall 20 includes a first retaining wall 210 and a second retaining wall 220, which are oppositely disposed, the second retaining wall 220 is disposed closely to the pit wall of the deep-shallow pit, the first retaining wall 210 includes a first wall 2110 and a first reinforcing rib 2120 poured in the first wall 2110, the second retaining wall 220 includes a second wall 2210 and a second reinforcing rib 2220 poured in the second wall 2210, the top ends of the first reinforcing rib 2120 and the second reinforcing rib 2220 are embedded in the first raft 110, and the bottom ends of the first reinforcing rib 2120 and the second reinforcing rib 2220 are embedded in the second raft 120. The arrangement of the first reinforcing rib 2120 and the second reinforcing rib 2220 is designed according to the strength required in practice, the embedded depth of the two ends of the first reinforcing rib 2120 and the second reinforcing rib 2220 is also designed according to the strength required in practice, it should be noted that other side surfaces of the box-type retaining wall 20 are not shown in the present application, and the principle thereof will be clear to those skilled in the art, and will not be described in detail herein.

In this embodiment, an inclined third reinforcing rib 2230 is provided between the second reinforcing rib 2220 and the first raft 110, one end of the third reinforcing rib 2230 is fixedly connected to the second reinforcing rib 2220, and it should be noted that one end of the third reinforcing rib 2230 is fixedly connected to the second reinforcing rib 2220 by a bolt or a screw. The other end of the third stiffening rib 2230 is embedded in the first raft 110. Be provided with the fourth strengthening rib 2240 of slope between second strengthening rib 2220 and the second raft 120, the one end and the second strengthening rib 2220 fixed connection of fourth strengthening rib 2240, specifically, through bolt or screw fixed connection between the one end of fourth strengthening rib 2240 and second strengthening rib 2220. The other end of the fourth stiffener 2240 is embedded into the second raft 120, and the embedded depth of the third stiffener 2230 and the fourth stiffener 2240 is designed according to actual needs, and the principle thereof is also clear to those skilled in the art.

In some specific embodiments, a first backfill structure 230 is disposed between the first wall 2110 and the second wall 2210 at the top of the second raft 120, a second backfill structure 240 is disposed at the top of the second raft 120 at the side of the first wall 2110 facing away from the second wall 2210, and a rigid ground structure 250 is disposed at the top of the second backfill structure 240. It should be noted that in the present application, the compaction factor of the first backfill structure 230 and the second backfill structure 240 is not less than 0.94, and the thickness of the first backfill structure 230 and the second backfill structure 240 are designed according to actual needs, which will not be described in detail herein.

Referring to fig. 3, 4 and 6, the building cushion plate 30 is located between the first wall 2110 and the second wall 2210 closely attached to the bottom of the first raft 110, the building cushion plate 30 includes a building deck body 310 and connectors 320 connected to two ends of the building deck body 310, one side of the first wall 2110 and the opposite side of the second wall 2210 are respectively provided with a connecting part 2250 adapted to the connectors 320, the connectors 320 are respectively fixed to the connecting parts 2250, in this embodiment, the width of the connecting part 2250 is not less than 100mm, in the specific construction process, the wall thickness is reduced to 100mm on the opposite side of the first wall 2110 and the opposite side of the second wall 2210, so that the two ends of the building deck body 310 are respectively lapped on the connecting parts 2250, specifically, as shown in fig. 6, the construction of the first raft 110 is performed after the building cushion plate 30 is poured and maintained, the existing construction method is optimized, and the construction of the retaining box wall 20 is not required to be completed by supporting templates and brackets, and then effectively avoid the waste of template and support, especially to the use of the deep shallow pit department that highly surpass, for example about 15m, can effectively reduce construction cost, improved the efficiency of construction simultaneously greatly.

First wall 2110 and second wall 2210 all are provided with additional strengthening in connecting portion 2250 department, and additional strengthening is the pre-buried steel band of pre-buried income in first wall 2110 and the second wall 2210, and through the design of this pre-buried steel band, be favorable to improving the structural strength of connecting portion 2250 department, improve the stability of construction structure.

In a specific embodiment, the thickness of the floor support plate body 310 is 200mm, the floor support plate body 310 is a steel bar truss floor support plate with the model TD7-170, the connecting member 320 is an additional steel bar piece, the additional steel bar piece and the floor support plate body 310 are fixedly connected in a welding manner, and the structural strength of the joint at the two ends of the floor support plate body 310 is improved by the design of the additional steel bar piece, it can be understood that in other embodiments, the connecting member 320 can also be made of other building materials such as steel strips.

Referring to fig. 5, a plurality of supporting members 330 are uniformly distributed at the bottom of the floor support plate body 310, and the supporting members 330 are i-shaped steel fixedly connected to the bottom of the floor support plate body 310. Through the design of this I-steel, in the work progress, effectual improvement building carrier plate body 310's stability reduces building carrier plate body 310's deformation.

This regional box barricade construction structures's of deep and shallow pit handing-over theory of operation: the construction structure of the box-type retaining wall and the raft in the existing deep and shallow pit connection area is optimized, and a building cushion plate 30 is additionally arranged between a first wall 2110 and a second wall 2210 at the bottom of a first raft 110, the opposite sides of first wall 2110 and second wall 2210 are respectively tapered to a wall thickness of 100mm, so that the two ends of the floor deck body 310 are respectively lapped at the connection parts 2250, and the connection parts 320 are respectively fixed to the connection parts 2250, as shown in fig. 6, after the pouring construction and the maintenance of the building cushion plate 30 are finished, the construction of the first raft 110 is carried out without supporting templates and supports inside the box-type retaining wall 20, and then effectively avoid the waste of template and support, especially to the construction of the super high deep and shallow pit of height, can effectively reduce construction cost, improved the efficiency of construction simultaneously greatly, had very high practicality.

It should be noted that the reinforcing steel bars in the floor support plate body 310 must be completely bound before the concrete is poured, and the concrete can be poured and poured after the concrete is checked to be correct, which is described in "design and construction Standard of composite floor" CECS273: 2010.

The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.