CN113565087A - Underground continuous wall reinforcement cage structure with formwork and construction method thereof - Google Patents
Underground continuous wall reinforcement cage structure with formwork and construction method thereof Download PDFInfo
- Publication number
- CN113565087A CN113565087A CN202110487155.2A CN202110487155A CN113565087A CN 113565087 A CN113565087 A CN 113565087A CN 202110487155 A CN202110487155 A CN 202110487155A CN 113565087 A CN113565087 A CN 113565087A
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- reinforcement cage
- steel
- wall
- steel plate
- underground
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/18—Bulkheads or similar walls made solely of concrete in situ
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/18—Bulkheads or similar walls made solely of concrete in situ
- E02D5/182—Bulkheads or similar walls made solely of concrete in situ using formworks to separate sections
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/18—Bulkheads or similar walls made solely of concrete in situ
- E02D5/187—Bulkheads or similar walls made solely of concrete in situ the bulkheads or walls being made continuously, e.g. excavating and constructing bulkheads or walls in the same process, without joints
Abstract
The invention belongs to the technical field of municipal engineering underground diaphragm wall construction, and particularly relates to an underground diaphragm wall reinforcement cage structure with a template and a construction method thereof. The surface welding of ground is provided with a plurality of channel steels even wall steel reinforcement cage both sides, and ground is even wall steel reinforcement cage and is provided with the steel sheet through the channel steel. The channel steel is welded with the steel plate or is adhered and connected by an adhesive. The steel plate on the outer side surface of the underground diaphragm wall steel reinforcement cage is a stainless steel plate, and the underground diaphragm wall steel reinforcement cage is connected with the stainless steel plate in a welding mode through channel steel; the steel plate on the inner side surface of the underground diaphragm wall steel reinforcement cage is a common steel plate, and the underground diaphragm wall steel reinforcement cage is connected with the common steel plate through channel steel in an adhesive bonding mode. The invention aims to arrange a template of a steel plate between the inner surface and the outer surface of a preset underground continuous wall and a soil body, improve the surface quality and the internal compactness of concrete, form a continuous waterproof layer on the outer surface of the continuous wall and greatly improve the leakage resistance and the seepage resistance of the underground continuous wall.
Description
Technical Field
The invention belongs to the technical field of municipal engineering underground diaphragm wall construction, and particularly relates to an underground diaphragm wall reinforcement cage structure with a template and a construction method thereof.
Background
The existing underground continuous wall adopts a grooving machine (grooving machine) on the ground, a long and narrow deep groove is dug in a width-divided section along the center line of a guide wall constructed in advance under the condition of slurry wall protection, a reinforcement cage is hung in the groove after the groove is cleaned, then underwater concrete is poured by a guide pipe method to form a unit groove section, and the steps are carried out section by section, so that a continuous reinforced concrete wall is built underground to serve as a structure for water interception, seepage prevention, bearing and water retaining. If the external water pressure is large, the concrete wall is subject to water seepage in the pouring process, and the engineering quality is seriously affected.
Disclosure of Invention
In order to solve the technical problems, the invention develops an underground continuous wall reinforcement cage structure with a template, reforms the existing underground continuous wall structure and construction process, and develops a multifunctional integrated underground continuous wall structure.
The specific technical scheme is as follows: the utility model provides a take underground continuous wall steel reinforcement cage structure of template, includes the ground even wall steel reinforcement cage, even wall steel reinforcement cage bottom and both sides surface are provided with the steel sheet.
Further, even wall steel reinforcement cage both sides surface and bottom surface welding are provided with a plurality of channel-section steel even, and even wall steel reinforcement cage bottom and both sides surface are provided with the steel sheet through the channel-section steel even, and the channel-section steel has the effect of stabilizing the steel reinforcement cage, can be better through the channel-section steel be connected steel sheet and steel reinforcement cage.
Further, the channel steel is welded with the steel plate or is adhered and connected by an adhesive.
Furthermore, the steel plate on the outer side surface of the underground diaphragm wall reinforcement cage is a stainless steel plate, and the underground diaphragm wall reinforcement cage is connected with the stainless steel plate in a welding mode through channel steel; the steel plate on the inner side surface of the underground diaphragm wall steel reinforcement cage is a common steel plate, and the underground diaphragm wall steel reinforcement cage is connected with the common steel plate through channel steel in an adhesive bonding mode. A plurality of channel steels are welded at the lower end of the steel reinforcement cage, steel plates are welded at the lower ends of the channel steels, stainless steel plates on the outer side surfaces are welded with bottom steel plates in a sealing mode, common steel plates on the inner side surfaces are adhered with the bottom steel plates in a sealing mode, and the steel plates are connected with the steel reinforcement cage conveniently through the channel steels. The stainless steel plate on the outer side surface is not removed and is used as a permanent waterproof system; the normal steel plate of the inner side surface can be removed in the future.
The technical effects are as follows:
the invention develops an underground continuous wall reinforcement cage structure with a template, reforms the existing underground continuous wall structure and construction process, develops a multifunctional integrated underground continuous wall structure, increases a stainless steel permanent template body on the earth facing surface, and realizes multiple functions of improving the surface smoothness of the continuous wall, preventing the front-section concrete from flowing around, improving the waterproof and integral waterproof performance of joints, ensuring the thickness of a protective layer and the like by increasing the template. Meanwhile, an outer waterproof system of the continuous wall can be formed, and the problem that the traditional continuous wall construction method cannot realize water resistance is solved.
The invention aims to arrange a template of a steel plate between the inner surface and the outer surface of a preset underground diaphragm wall and a soil body, improve the surface quality and the internal compactness of concrete, form a continuous waterproof layer on the outer surface of the diaphragm wall, greatly improve the leakage resistance and the seepage resistance of the underground diaphragm wall, and solve the main problems for serving as a permanent underground outdoor wall structure.
Drawings
FIG. 1 is a schematic view of the present invention;
wherein, 1, connecting the wall reinforcement cage with the ground; 2, channel steel; 3 stainless steel plates; 4 common steel plate.
Detailed Description
Example 1
The utility model provides a take underground continuous wall steel reinforcement cage structure of template, includes ground even wall steel reinforcement cage 1, 1 bottom of ground even wall steel reinforcement cage and both sides surface (two faces of being connected with the foundation ditch) are provided with the steel sheet.
Example 2
The utility model provides a take underground continuous wall steel reinforcement cage structure of template, includes ground even wall steel reinforcement cage 1, 1 bottom of ground even wall steel reinforcement cage and both sides surface (two faces of being connected with the foundation ditch) are provided with the steel sheet.
Further, the bottom end and the surfaces of the two sides of the underground continuous wall reinforcement cage 1 are welded with a plurality of channel steels 2, and the underground continuous wall reinforcement cage 1 is provided with steel plates through the channel steels.
Example 3
The utility model provides a take underground continuous wall steel reinforcement cage structure of template, includes ground even wall steel reinforcement cage 1, 1 bottom of ground even wall steel reinforcement cage and both sides surface (two faces of being connected with the foundation ditch) are provided with the steel sheet.
Furthermore, the surface welding of the two sides of the underground continuous wall reinforcement cage 1 is provided with a plurality of channel steels 2, and the underground continuous wall reinforcement cage 1 is provided with steel plates through the channel steels.
Further, the channel steel 2 is welded with the steel plate or is adhered and connected by an adhesive, and specifically: the steel plate on the outer side surface of the ground-connected wall reinforcement cage 1 is a stainless steel plate 3, and the ground-connected wall reinforcement cage 1 is connected with the stainless steel plate 3 in a welding mode through channel steel; the steel plate on the surface of the inner side of the ground wall reinforcement cage 1 is a common steel plate 4, and the ground wall reinforcement cage 1 is connected with the common steel plate 4 through channel steel in an adhesive manner. The bottom end of the underground diaphragm wall reinforcement cage 1 is provided with a bottom steel plate through channel steel, the bottom steel plate is a common steel plate or a stainless steel plate, and the stainless steel plate is preferred; the bottom layer steel plate is connected with the outer side surface steel plate in a sealing and welding mode.
The construction method comprises the following steps:
1. and (5) constructing a guide wall, namely constructing the guide wall along the longitudinal axis of the continuous wall before excavating the groove section. (same as the traditional process)
2. And (3) performing slurry wall protection construction, wherein the slurry applies pressure to the wall of the groove to protect the shape of the dug deep groove from changing. The slurry has the function of forming a watertight mud skin on the wall of the tank, so that the hydrostatic pressure of the slurry effectively acts on the wall of the tank, the seepage of underground water and the peeling of the tank wall are prevented, the stability of the wall surface is kept, and the slurry also has the functions of suspending the soil residues and carrying the soil residues out of the ground. (same as the traditional process)
3. And (4) grooving construction, namely performing grooving construction on the diaphragm wall groove by using a grooving machine, and grabbing soil in the groove section. (same as the traditional process)
4. The construction of ground even wall steel reinforcement cage, the preparation steel reinforcement cage, it lays the bottom layer steel sheet to link the wall size according to the width of cloth section ground earlier, adopt the binder to lead to long the mode of paining to fix lower floor's clod wash channel-section steel on the steel sheet surface after the steel sheet is laid and is accomplished, even wall steel reinforcement cage by down up processing ground afterwards, welding upper strata clod wash channel-section steel, welding or gluing set up inside and outside steel sheet, the clod wash channel-section steel is fixed through welded connection with ground even wall steel reinforcement cage, make the steel reinforcement cage body and surperficial two-layer steel sheet form a whole, steel reinforcement cage steel sheet surface plays the template effect when pouring. The steel plate on the outer surface is made of stainless steel and is permanently paved on the outer side of the wall body in the using stage to be used as an outer waterproof layer. The steel plate on the surface of the steel reinforcement cage is used as a template during concrete pouring, and after the soil body in the foundation pit is dug, the common steel plate can be detached and recycled. The steel plate with the two fully covered surfaces can also be used as a steel plate for preventing concrete and slurry from entering the backward moving slot.
5. And (5) pouring concrete, and pouring concrete in the groove.
6. The wall section joint is treated, the underground continuous wall is formed by splicing a plurality of amplitude sections, and lock catch pipe joints are adopted between the amplitude sections. The fore shaft pipe process is that before pouring concrete into the groove section, a steel pipe with the same diameter and width as the groove is inserted into the end of the groove section after the groove is formed, i.e. the fore shaft pipe, and after the concrete is initially set, the steel pipe is slowly pulled out to form a semi-concave tenon joint at the end. The rigid joint is also arranged according to the stress requirement of the wall body structure, so that two successive wall sections are connected into a whole.
The device is successfully applied to construction of underground diaphragm walls of Kunming subway No. 1 northwest extension projects and Kunming city street civil air defense projects, appearance quality, leakage resistance and seepage resistance of the underground diaphragm walls are improved, permanent temporary combination is realized, a large number of later repair processes caused by appearance defects are reduced, a large amount of labor cost is saved, working efficiency is improved, and cost is reduced.
Claims (5)
1. The utility model provides a take underground continuous wall steel reinforcement cage structure of template, includes ground even wall steel reinforcement cage, its characterized in that, ground even wall steel reinforcement cage bottom and both sides surface are provided with the steel sheet.
2. The structure of the formwork-equipped underground continuous wall reinforcement cage according to claim 1, wherein a plurality of channel steels are welded to both side surfaces and the bottom surface of the underground continuous wall reinforcement cage, and steel plates are provided to the bottom end and both side surfaces of the underground continuous wall reinforcement cage through the channel steels.
3. The structure of the formwork-equipped reinforcement cage for the underground diaphragm wall according to claim 2, wherein the channel steel is welded or adhesively bonded to the steel plate.
4. The structure of the underground diaphragm wall steel reinforcement cage with the template of claim 3, wherein the steel plate on the outer side surface of the underground diaphragm wall steel reinforcement cage is a stainless steel plate, and the underground diaphragm wall steel reinforcement cage is welded with the stainless steel plate through channel steel; the steel plate on the inner side surface of the underground diaphragm wall steel reinforcement cage is a common steel plate, and the underground diaphragm wall steel reinforcement cage is connected with the common steel plate through channel steel in an adhesive bonding mode.
5. A construction method of an underground continuous wall reinforcement cage structure with a template is characterized by comprising the following steps:
(1) constructing a guide wall, namely constructing the guide wall along the longitudinal axis of the continuous wall before excavating the groove section;
(2) slurry wall protection construction, namely applying pressure to the wall of the tank through slurry to protect the shape of the dug deep tank from changing;
(3) grooving construction, namely performing grooving construction on the underground diaphragm wall groove by using a grooving machine, and grabbing soil in a groove section;
(4) the construction of the ground-linked wall reinforcement cage, manufacturing the reinforcement cage, firstly paving a bottom layer steel plate according to the size of a span ground-linked wall, fixing a lower layer cold-bent channel steel on the surface of the steel plate by adopting a full-length coating mode of an adhesive after the steel plate is paved, then processing the ground-linked wall reinforcement cage from bottom to top, welding an upper layer cold-bent channel steel, and welding or adhering an inner side steel plate and an outer side steel plate, wherein the cold-bent channel steel and the ground-linked wall reinforcement cage are fixedly connected through welding, so that a reinforcement cage body and the two steel plates on the surface form a whole, and the steel plate on the surface of the reinforcement cage plays a role of a template during pouring; the steel plate on the outer surface is made of stainless steel and is permanently paved on the outer side of the wall body in the using stage to be used as an outer waterproof layer; the steel plate on the surface of the steel reinforcement cage is used as a template during concrete pouring, and after soil in the foundation pit is excavated, the common steel plate can be detached from the template for recycling;
(5) pouring concrete, namely pouring the concrete in the groove;
(6) the wall section joint is treated, the underground continuous wall is formed by splicing a plurality of amplitude sections, and lock catch pipe joints are adopted between the amplitude sections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110487155.2A CN113565087A (en) | 2021-05-04 | 2021-05-04 | Underground continuous wall reinforcement cage structure with formwork and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110487155.2A CN113565087A (en) | 2021-05-04 | 2021-05-04 | Underground continuous wall reinforcement cage structure with formwork and construction method thereof |
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| CN113565087A true CN113565087A (en) | 2021-10-29 |
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| CN202110487155.2A Withdrawn CN113565087A (en) | 2021-05-04 | 2021-05-04 | Underground continuous wall reinforcement cage structure with formwork and construction method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114197447A (en) * | 2021-11-02 | 2022-03-18 | 广州地铁设计研究院股份有限公司 | Lightweight single-side superposed prefabricated underground continuous wall and construction method thereof |
| CN114197448A (en) * | 2021-11-02 | 2022-03-18 | 广州地铁设计研究院股份有限公司 | Lightweight double-sided superposed prefabricated underground continuous wall and construction method thereof |
| CN114411695A (en) * | 2022-01-24 | 2022-04-29 | 梁军 | Construction method and connection structure of underground cast-in-place continuous wall |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1481186A (en) * | 1975-12-01 | 1977-07-27 | Terresearch Ltd | Concrete casting |
| CN106836191A (en) * | 2017-01-20 | 2017-06-13 | 中国建筑第四工程局有限公司 | The construction method of subway building enclosure ground-connecting-wall under a kind of low clearance |
| CN108221957A (en) * | 2018-03-12 | 2018-06-29 | 中铁第四勘察设计院集团有限公司 | A kind of continuous underground wall structure |
| CN109267565A (en) * | 2018-11-02 | 2019-01-25 | 西南科技大学 | For shield launching and receive the closure door structure and its construction method in construction |
| CN212026219U (en) * | 2020-03-18 | 2020-11-27 | 上海市浦东新区建设(集团)有限公司 | Coincide assembled underground continuous wall |
-
2021
- 2021-05-04 CN CN202110487155.2A patent/CN113565087A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1481186A (en) * | 1975-12-01 | 1977-07-27 | Terresearch Ltd | Concrete casting |
| CN106836191A (en) * | 2017-01-20 | 2017-06-13 | 中国建筑第四工程局有限公司 | The construction method of subway building enclosure ground-connecting-wall under a kind of low clearance |
| CN108221957A (en) * | 2018-03-12 | 2018-06-29 | 中铁第四勘察设计院集团有限公司 | A kind of continuous underground wall structure |
| CN109267565A (en) * | 2018-11-02 | 2019-01-25 | 西南科技大学 | For shield launching and receive the closure door structure and its construction method in construction |
| CN212026219U (en) * | 2020-03-18 | 2020-11-27 | 上海市浦东新区建设(集团)有限公司 | Coincide assembled underground continuous wall |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114197447A (en) * | 2021-11-02 | 2022-03-18 | 广州地铁设计研究院股份有限公司 | Lightweight single-side superposed prefabricated underground continuous wall and construction method thereof |
| CN114197448A (en) * | 2021-11-02 | 2022-03-18 | 广州地铁设计研究院股份有限公司 | Lightweight double-sided superposed prefabricated underground continuous wall and construction method thereof |
| CN114411695A (en) * | 2022-01-24 | 2022-04-29 | 梁军 | Construction method and connection structure of underground cast-in-place continuous wall |
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Application publication date: 20211029 |
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