CN113404085B - Box-type retaining wall construction structure for deep and shallow pit handover region - Google Patents
Box-type retaining wall construction structure for deep and shallow pit handover region Download PDFInfo
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- CN113404085B CN113404085B CN202110722463.9A CN202110722463A CN113404085B CN 113404085 B CN113404085 B CN 113404085B CN 202110722463 A CN202110722463 A CN 202110722463A CN 113404085 B CN113404085 B CN 113404085B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0023—Cast, i.e. in situ or in a mold or other formwork
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Abstract
The application provides a regional box barricade construction structures of deep and shallow pit handing-over belongs to box barricade construction technical field. This box barricade construction structures in deep and shallow pit handing-over region, 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. The building cushion plate is located between the first wall body and the second wall body tightly attached to the bottom of the first raft, the building cushion plate comprises a building bearing plate body and connecting pieces connected to two ends of the building bearing plate body, and the connecting pieces are fixed to the connecting portions respectively. Through addding a building cushion plate, carry out the construction of first raft after this building cushion plate pouring construction and maintenance finish again, effectively avoid the waste of template and support, especially to the construction of the high superelevation deep and shallow hole, can effectively reduce construction cost, improved the efficiency of construction simultaneously greatly.
Description
Technical Field
The application relates to the field of box-type retaining wall construction, in particular to a deep and shallow pit handover area box-type retaining wall construction structure.
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 a shear wall and a top plate of the shear wall are completed, templates and supports cannot be recycled, and the cost is high.
How to invent a box-type retaining wall construction structure in a deep and shallow pit joint area to improve the problems becomes a problem to be urgently solved by the technical personnel in the field.
Disclosure of Invention
In order to make up for the above deficiencies, the application provides a deep and shallow pit connection area box-type retaining wall construction structure, and aims to solve the problems in the background art.
The embodiment of the application provides a 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 closely 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 arranged on one sides, opposite to the first wall body and the second wall body, of the first wall body and the second wall body respectively, and the connecting pieces are fixed to the connecting portions respectively.
In a specific implementation scheme, an inclined third reinforcing rib is arranged between the second reinforcing rib and the first raft plate, one end of the third reinforcing rib is fixedly connected with the second reinforcing rib, and the other end of the third reinforcing rib is embedded into the first raft plate.
In a specific implementation scheme, an inclined fourth reinforcing rib is arranged between the second reinforcing rib and the second raft plate, 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 plate.
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 through welding.
In a specific embodiment, 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 specific embodiment, the second backfill structure is provided with a rigid ground structure on top of the second backfill structure.
The beneficial effects of the invention are: according to the deep and shallow pit connection area box-type retaining wall construction structure, 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, the wall thickness is respectively reduced by 100mm at one side, opposite to the first wall body and the second wall body, of the first wall body and the second wall body, so that two ends of the building bearing plate body are respectively lapped at the connecting parts, 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 maintained, and a template and a support do not need to be supported and erected inside the box-type retaining wall part for construction, so that the waste of the template and the support is effectively avoided, particularly for deep and shallow pit 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 illustrate 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 examples of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also derive other related drawings based on 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 portion 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 plate components; 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 stiffener piece; 2230-a third reinforcing bar member; 2240-a fourth stiffener; 2250-a linker; 230-a first backfill structure; 240-a second backfill structure; 250-a rigid ground structure; 30-a floor bolster plate; 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 to implicitly indicate 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 the case may be.
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 and second reinforcing rib parts 2120 and 2220 is designed according to the actual strength, the embedded depth of the two ends of the first and second reinforcing rib parts 2120 and 2220 is also designed according to the actual requirement, it should be noted that the other side surfaces of the box-type retaining wall part 20 are not shown in this application, and the principle thereof will be clear to those skilled in the art, and will not be described in detail here.
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 inclined fourth strengthening rib 2240 between second strengthening rib 2220 and second raft board 120, the one end and 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 requirements, which are not described in detail herein.
Referring to fig. 3, 4 and 6, the building bolster plate 30 is located between the first wall 2110 and the second wall 2210 tightly attached to the bottom of the first raft 110, the building bolster plate 30 includes a building bearing plate body 310 and connectors 320 connected to both ends of the building bearing plate body 310, one side of the first wall 2110 and one side of the second wall 2210 are respectively provided with a connector 2250 adapted to the connector 320, and the connectors 320 are respectively fixed to the connectors 2250, in this embodiment, the width of the connector 2250 is not less than 100mm, in the specific construction process, the wall thickness is reduced to 100mm on the side of the first wall 2110 and the side of the second wall 2210 opposite to the first wall, so that both ends of the building bearing plate body 310 are respectively lapped over the connector 2250, specifically, as shown in fig. 6, the construction of the building bolster plate 30 and the first raft 110 is performed after the construction, the existing construction method is optimized, it is not necessary to support templates and supports inside the retaining wall 20 for construction, and further effectively avoid the waste of templates and supports, especially for the high height of the shallow pits, for example, 15m, and the construction cost can be greatly reduced.
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 connector 320 is an additional steel bar, the additional steel bar is fixedly connected with the floor support plate body 310 in a welding manner, and the structural strength of the joints at the two ends of the floor support plate body 310 is improved by the design of the additional steel bar, which can be understood that in other embodiments, the connector 320 may 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 stability that improves building carrier plate body 310 reduces building carrier plate body 310's deformation.
The working principle of the box-type retaining wall construction structure in the deep and shallow pit handover area is as follows: optimize on the construction structures of current box barricade in deep and shallow pit handing-over region and raft, through add a building cushion plate 30 between first wall 2110 and the second wall 2210 in first raft 110 bottom, during the construction, first wall 2110 and second wall 2210 one side relative take the wall thickness into 100mm respectively, make the both ends of building carrier plate body 310 overlap joint in this connecting portion 2250 department respectively, make connecting piece 320 be fixed in connecting portion 2250 respectively, show as figure 6 specifically, carry out the construction of first raft 110 again after this building cushion plate 30 pouring construction and maintenance finish, need not be under construction at box inside template and the support of keeping off 20, and then effectively avoid the waste of template and support, especially for the construction of the deep and shallow pit of highly surpassing, construction cost can be effectively reduced, construction efficiency has been improved greatly simultaneously, and has 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.
Claims (7)
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 bolster plate (30) is positioned between the first wall (2110) and the second wall (2210) which are tightly attached to the bottoms of the first rafts (110), the building bolster plate (30) comprises a building bolster body (310) and connecting pieces (320) connected to two ends of the building bolster body (310), connecting parts (2250) matched with the connecting pieces (320) are respectively arranged on one sides of the first wall (2110) and the second wall (2210), and the connecting pieces (320) are respectively fixed at the connecting parts (2250);
an inclined third reinforcing rib (2230) is arranged between the second reinforcing rib (2220) and the first raft plate (110), one end of the third reinforcing rib (2230) is fixedly connected with the second reinforcing rib (2220), and the other end of the third reinforcing rib (2230) is embedded into the first raft plate (110);
an inclined fourth reinforcing rib piece (2240) is arranged between the second reinforcing rib piece (2220) and the second raft (120), one end of the fourth reinforcing rib piece (2240) is fixedly connected with the second reinforcing rib piece (2220), and the other end of the fourth reinforcing rib piece (2240) is embedded into the second raft (120);
the bottom of the floor support plate body (310) is evenly provided with a plurality of supporting pieces (330), and the supporting pieces (330) are I-shaped steel fixedly connected to the bottom of the floor support plate body (310).
2. The box-type retaining wall construction structure 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 both provided with a reinforcing structure at the connection part (2250).
3. The structure as claimed in claim 2, wherein the reinforcing structures are pre-embedded steel strips pre-embedded in the first wall (2110) and the second wall (2210).
4. The structure for constructing the box-type retaining wall in the 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.
5. 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 plate body (310) by welding.
6. 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).
7. The structure for constructing box-type retaining wall in junction area of deep and shallow pits as claimed in claim 6, wherein the second backfill structure (240) is provided with a rigid ground structure (250) on top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110722463.9A CN113404085B (en) | 2021-06-28 | 2021-06-28 | Box-type retaining wall construction structure for deep and shallow pit handover region |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110722463.9A CN113404085B (en) | 2021-06-28 | 2021-06-28 | Box-type retaining wall construction structure for deep and shallow pit handover region |
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| CN113404085A CN113404085A (en) | 2021-09-17 |
| CN113404085B true CN113404085B (en) | 2022-11-11 |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0747856B2 (en) * | 1993-06-30 | 1995-05-24 | 丸栄コンクリート工業株式会社 | Retaining wall construction method |
| JP5503822B2 (en) * | 2010-05-06 | 2014-05-28 | 有限会社カヌカデザイン | Retaining wall and its construction method |
| CN102134907B (en) * | 2010-12-31 | 2012-07-04 | 中铁二局股份有限公司 | Construction method of steel bar truss floor support plate |
| CN106638610B (en) * | 2017-03-13 | 2018-07-31 | 中国建筑第七工程局有限公司 | Height difference misconnection structure and its construction method |
| CN111622234B (en) * | 2020-06-12 | 2021-06-08 | 中赟国际工程有限公司 | Unloading type thin-wall box-type retaining wall supported by obliquely and vertically combined steel pipe pile and construction process |
| CN111622261A (en) * | 2020-06-22 | 2020-09-04 | 云南皓泰公路勘察设计有限公司 | Box retaining wall of pile foundation |
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