CN210031842U - Combined supporting system for adjacent deep foundation pit based on row piles, connecting beams and counter-pulling anchor cables - Google Patents
Combined supporting system for adjacent deep foundation pit based on row piles, connecting beams and counter-pulling anchor cables Download PDFInfo
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- CN210031842U CN210031842U CN201920441551.XU CN201920441551U CN210031842U CN 210031842 U CN210031842 U CN 210031842U CN 201920441551 U CN201920441551 U CN 201920441551U CN 210031842 U CN210031842 U CN 210031842U
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Abstract
The utility model discloses a combined supporting system for adjacent deep foundation pits based on row piles, connecting beams and opposite-pulling anchor cables, which comprises row piles (1), crown beams (2), connecting beams (3), opposite-pulling anchor cables (4) and a steel plate pavement (7); a plurality of rows of piles are arranged in adjacent areas of the first deep foundation pit and the second deep foundation pit at equal intervals to form two rows of oppositely arranged supporting structures, and two rows of piles oppositely arranged in the two rows of supporting structures are used as a group of supporting units; opposite-pulling anchor cables are arranged between two rows of piles of each group of supporting units, the tops of the two rows of supporting structures are connected through crown beams, and a plurality of connecting beams are connected between the crown beams of the two rows of supporting structures to form an integrated combined supporting system; the steel plate road surface is fixedly paved on the crown beam and the connecting beam. The utility model discloses make adjacent deep basal pit can be under construction in step, reduction of erection time solves the limited problem in interim processing stack place and temporary road, has obvious cost advantage, and economic benefits is obvious.
Description
Technical Field
The utility model relates to a excavation supporting system especially relates to a deep foundation ditch combined supporting system faces based on campshed, tie beam and counter-pull anchor rope.
Background
In recent years, the process of urban construction is gradually accelerated, and the phenomenon that adjacent plots are synchronously developed or the plots are synchronously developed with municipal deep foundation pit engineering such as an underground comprehensive pipe gallery and a subway is usually generated in the work of urban construction development, urban area transformation and the like; in order to avoid synchronous operation of the adjacent deep foundation pits, the construction sequence is generally coordinated and arranged in the mode of construction organization under the condition, or the adjacent deep foundation pits are synchronously constructed in the mode of combining underground continuous walls (row piles) with inner supports respectively, so that the safety and the stability of the foundation pits are ensured. The method not only has serious influence on the construction period of adjacent deep foundation pit projects, but also has high construction cost, and simultaneously can not solve the problems of limited temporary processing and stacking sites and temporary roads caused by narrow construction sites.
Disclosure of Invention
An object of the utility model is to provide a deep basal pit combined supporting system faces mutually based on campshed, tie beam and to drawing the anchor rope, both make adjacent deep basal pit can be under construction in step, and effective reduction of erection time, can solve again and stack place and the limited problem of temporary road because of the narrow and small interim processing that produces in construction place, compare simultaneously underground continuous wall and combine the system of strutting of interior support to have obvious cost advantage, economic benefits is obvious.
The utility model discloses a realize like this:
a combined supporting system of adjacent deep foundation pits based on row piles, connecting beams and opposite-pulling anchor cables comprises row piles, crown beams, connecting beams, opposite-pulling anchor cables and a steel plate pavement; a plurality of rows of piles are arranged in adjacent areas of the first deep foundation pit and the second deep foundation pit at equal intervals to form two rows of oppositely arranged supporting structures, and two rows of piles oppositely arranged in the two rows of supporting structures are used as a group of supporting units; opposite-pulling anchor cables are arranged between two rows of piles of each group of supporting units, the tops of the two rows of supporting structures are connected through crown beams, and a plurality of connecting beams are connected between the crown beams of the two rows of supporting structures to form an integrated combined supporting system; the steel plate road surface is fixedly paved on the crown beam and the connecting beam.
The top of the crown beam is provided with an embedded part, and the guard rail is arranged on the crown beam through the embedded part.
The embedded part is a hollow cylindrical structure with one end sealed, the diameter of the embedded part is 50mm, and the length of the embedded part is not less than 250 mm.
The connecting beams are arranged in parallel, and the connecting beams and the crown beam are positioned in the same plane.
The distance between two adjacent connecting beams is 2-8 m.
The thickness of the steel plate pavement is 2 mm.
One or a plurality of counter-pulling anchor cables are arranged between two row piles of each group of supporting units, and the counter-pulling anchor cables are arranged at intervals of every 3.5-5m downwards along the crown beam.
Compared with the prior art, the utility model, following beneficial effect has:
1. the utility model discloses both make adjacent deep basal pit can be under construction in step, and effective reduction of erection time, can solve again because of the limited problem of the processing temporary stack place and temporary road that the construction site is narrow and small and produce, compare simultaneously underground continuous wall and combine the system of strutting of interior support and have obvious cost advantage, economic benefits is obvious.
2. The utility model discloses can form firm stake, roof beam frame structure, make the foundation ditch deflection little, the cost is far less than two side underground shear force walls and combines interior bearing structure.
3. The utility model discloses after the steel sheet is laid at the roof beam top, can rationally lay temporary road and interim processing field as required, have stronger suitability.
4. The utility model is suitable for a plane position is adjacent, and the distance is nearer, and the construction of the adjacent deep basal pit that foundation ditch engineering time limit for a project is close.
Drawings
Fig. 1 is a top view of the combined supporting system of the adjacent deep foundation pit based on the row piles, the connecting beams and the opposite pulling anchor cables;
fig. 2 is a partial sectional view of the adjacent deep foundation pit combined supporting system based on the row piles, the connecting beams and the opposite-pulling anchor cables;
fig. 3 is a schematic diagram of laying a steel plate pavement in the adjacent deep foundation pit combined supporting system based on the row piles, the connecting beams and the opposite-pulling anchor cables;
fig. 4 is the utility model discloses the construction schematic diagram of embodiment in the deep basal pit joint support system that faces mutually based on campshed, tie beam and counter-pull anchor rope.
In the figure, 1 row of piles, 2 crown beams, 21 embedded parts, 22 protective railings, 3 connecting beams, 4 opposite-pulling anchor cables, 5 first deep foundation pits, 6 second deep foundation pits, 7 steel plate pavements and 71 fixing parts.
Detailed Description
The invention will be further explained with reference to the drawings and the specific embodiments.
Referring to the attached drawings 1 and 2, the combined supporting system for the adjacent deep foundation pit based on the row piles, the connecting beams and the opposite-pulling anchor cables comprises row piles 1, crown beams 2, connecting beams 3, opposite-pulling anchor cables 4 and a steel plate pavement 7; a plurality of row piles 1 are arranged in adjacent areas of the first deep foundation pit 5 and the second deep foundation pit 6 at equal intervals to form two rows of oppositely arranged supporting structures, and two row piles 1 which are oppositely arranged in the two rows of supporting structures are used as a group of supporting units; opposite-pulling anchor cables 4 are arranged between two rows of piles 1 of each group of supporting units, the tops of the two rows of supporting structures are connected through crown beams 2, and a plurality of connecting beams 3 are connected between the crown beams 2 of the two rows of supporting structures to form an integrated combined supporting system; the steel plate road surface 7 is fixedly laid on the crown beam 2 and the connecting beam 3.
Preferably, the row piles 1 can adopt reinforced concrete bored piles.
The top of hat roof beam 2 be equipped with built-in fitting 21, built-in fitting 21 is the hollow cylindrical structure that one end was sealed, and guard rail 22 passes through built-in fitting 21 and installs on hat roof beam 2, preferably, the diameter of built-in fitting 21 is 50mm, and length is not less than 250mm, the installation of the deep foundation ditch limit guard rail 22 of later stage of being convenient for.
The connecting beams 3 are arranged in parallel, and the connecting beams 3 and the crown beam 2 are positioned in the same plane.
Preferably, the distance between two adjacent connecting beams 3 can be designed to be 2-8m, and the distance between the connecting beams 3 can be adjusted according to related calculation parameters of the deep foundation pit so as to ensure the integral rigidity of the combined supporting system.
Referring to fig. 3, the thickness of the steel plate pavement 7 is about 2mm, and preferably, the steel plate pavement can be made of one steel plate or formed by splicing a plurality of steel plates.
One or a plurality of counter-pulling anchor cables 4 are arranged between two row piles of each group of supporting units, the plurality of counter-pulling anchor cables 4 are arranged at intervals of every 3.5-5m downwards along the crown beam 2, and parameters such as specifications, adjacent intervals and the like of the counter-pulling anchor cables 4 can be obtained and adjusted according to practical working conditions through related calculation parameters of the deep foundation pit so as to ensure the overall rigidity of the combined supporting system.
Referring to the attached fig. 4, in actual construction, the concrete construction steps of the combined supporting system for the adjacent deep foundation pits of the present invention are as follows:
1. the method comprises the steps that row piles 1 are arranged in an adjacent area of a first deep foundation pit 5 and a second deep foundation pit 6 (to build an underground comprehensive pipe gallery) in an aligned mode, therefore, the number of the row piles 1 in the adjacent area is an even number, every two row piles 1 serve as a group of supporting units, and the groups of supporting units are respectively arranged on two sides of soil bodies between the first deep foundation pit 5 and the second deep foundation pit 6 in an aligned mode.
2. The tops of a row of row piles 1 of the single-side deep foundation pit are connected by adopting reinforced concrete coping crown beams 2, so that the independent supporting structures on two sides form a whole respectively.
When the crown beam 2 is poured, the embedded part 21 with the diameter of 50mm, the length of not less than 250mm, the hollow cylindrical shape and the steel structure and with one sealed end can be embedded at the top of the crown beam 2 for installing the safety protection guardrail 22 at the edge of the deep foundation pit in the later period.
3. And at the top of the soil body between the adjacent deep foundation pits, reinforced concrete connecting beams 3 which are parallel to each other and have the interval of 2m-8m are adopted to connect the crown beams 2 of the adjacent deep foundation pits into a whole, and the connecting beams 3 and the elevations at the tops of the crown beams 2 are kept at the same level.
4. Lay 2mm thick steel sheet steel plate road surface 7 at the top of hat roof beam 2 and tie beam 3 to it is fixed through a plurality of mounting 71, it is preferred, mounting 71 can set up the edge on steel sheet road surface 7, improves the bearing capacity on steel sheet road surface, improves the practicality.
5. On top of the crown beam 2 is mounted a guard rail 22.
6. In the process of excavating the deep foundation pits at two sides, one counter-pulling prestressed anchor cable 4 is arranged every 3.5-5m downwards along the elevation of the top beam 2 so as to ensure the integral rigidity of the combined supporting system.
7. In the process of excavating the deep foundation pit, the placing work of the inter-pile soil hanging net spray anchor and the drain hole is gradually perfected, and the stability of the inter-pile soil is ensured.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, therefore, any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention should be included in the scope of the present invention.
Claims (7)
1. The utility model provides a deep foundation ditch joint support system faces based on campshed, tie beam and counter-pull anchor rope which characterized by: comprises row piles (1), crown beams (2), connecting beams (3), opposite-pull anchor cables (4) and steel plate pavements (7); a plurality of row piles (1) are arranged in adjacent areas of the first deep foundation pit (5) and the second deep foundation pit (6) at equal intervals to form two rows of oppositely arranged supporting structures, and two rows of oppositely arranged piles (1) in the two rows of supporting structures are used as a group of supporting units; opposite-pulling anchor cables (4) are arranged between two rows of piles (1) of each group of supporting units, the tops of the two rows of supporting structures are connected through crown beams (2), and a plurality of connecting beams (3) are connected between the crown beams (2) of the two rows of supporting structures to form an integrated combined supporting system; the steel plate pavement (7) is fixedly paved on the crown beam (2) and the connecting beam (3).
2. The combined supporting system for the adjacent deep foundation pit based on the row piles, the connecting beams and the counter-pulling anchor cables as claimed in claim 1, wherein: the top of the crown beam (2) is provided with an embedded part (21), and the guard rail (22) is arranged on the crown beam (2) through the embedded part (21).
3. The combined supporting system for the adjacent deep foundation pits based on the row piles, the connecting beams and the counter-pulling anchor cables as claimed in claim 2, wherein: the embedded part (21) is of a hollow cylindrical structure with one end sealed, the diameter of the embedded part (21) is 50mm, and the length of the embedded part is not less than 250 mm.
4. The combined supporting system for the adjacent deep foundation pit based on the row piles, the connecting beams and the counter-pulling anchor cables as claimed in claim 1, wherein: the connecting beams (3) are arranged in parallel, and the connecting beams (3) and the crown beam (2) are positioned in the same plane.
5. The combined supporting system for the adjacent deep foundation pits based on the row piles, the connecting beams and the opposite-pulling anchor cables as claimed in claim 1 or 4, wherein: the distance between two adjacent connecting beams (3) is 2-8 m.
6. The combined supporting system for the adjacent deep foundation pit based on the row piles, the connecting beams and the counter-pulling anchor cables as claimed in claim 1, wherein: the thickness of the steel plate pavement (7) is 2 mm.
7. The combined supporting system for the adjacent deep foundation pit based on the row piles, the connecting beams and the counter-pulling anchor cables as claimed in claim 1, wherein: one or a plurality of counter-pulling anchor cables (4) are arranged between the two row piles (1) of each group of supporting units, and the counter-pulling anchor cables (4) are arranged at intervals of every 3.5-5m downwards along the crown beam (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920441551.XU CN210031842U (en) | 2019-04-02 | 2019-04-02 | Combined supporting system for adjacent deep foundation pit based on row piles, connecting beams and counter-pulling anchor cables |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920441551.XU CN210031842U (en) | 2019-04-02 | 2019-04-02 | Combined supporting system for adjacent deep foundation pit based on row piles, connecting beams and counter-pulling anchor cables |
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| CN210031842U true CN210031842U (en) | 2020-02-07 |
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| CN201920441551.XU Active CN210031842U (en) | 2019-04-02 | 2019-04-02 | Combined supporting system for adjacent deep foundation pit based on row piles, connecting beams and counter-pulling anchor cables |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111519485A (en) * | 2020-04-30 | 2020-08-11 | 中国建筑第八工程局有限公司 | Connecting channel between foundation pits and construction method thereof |
| CN111636435A (en) * | 2020-05-20 | 2020-09-08 | 北京城建华夏基础建设工程有限公司 | Foundation pit counter-pulling anchor rod supporting system and construction method thereof |
| CN112431207A (en) * | 2020-10-05 | 2021-03-02 | 欧阳春洲 | Supporting device of adjacent foundation ditch dam body |
| CN112921985A (en) * | 2021-02-02 | 2021-06-08 | 河南省远基岩土工程有限公司 | Supporting body and supporting method for excavation of adjacent foundation pits |
| CN113818447A (en) * | 2021-10-18 | 2021-12-21 | 浙江理工大学 | Adjacent compact construction foundation pit combined supporting structure and construction method thereof |
| CN115110570A (en) * | 2022-06-21 | 2022-09-27 | 广州市天作建筑规划设计有限公司 | Soil retaining structure utilizing basement rigidity and construction method |
-
2019
- 2019-04-02 CN CN201920441551.XU patent/CN210031842U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111519485A (en) * | 2020-04-30 | 2020-08-11 | 中国建筑第八工程局有限公司 | Connecting channel between foundation pits and construction method thereof |
| CN111636435A (en) * | 2020-05-20 | 2020-09-08 | 北京城建华夏基础建设工程有限公司 | Foundation pit counter-pulling anchor rod supporting system and construction method thereof |
| CN112431207A (en) * | 2020-10-05 | 2021-03-02 | 欧阳春洲 | Supporting device of adjacent foundation ditch dam body |
| CN112921985A (en) * | 2021-02-02 | 2021-06-08 | 河南省远基岩土工程有限公司 | Supporting body and supporting method for excavation of adjacent foundation pits |
| CN113818447A (en) * | 2021-10-18 | 2021-12-21 | 浙江理工大学 | Adjacent compact construction foundation pit combined supporting structure and construction method thereof |
| CN115110570A (en) * | 2022-06-21 | 2022-09-27 | 广州市天作建筑规划设计有限公司 | Soil retaining structure utilizing basement rigidity and construction method |
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Effective date of registration: 20201224 Address after: No. 14701, 47 / F, unit 1, green space center, block a, northeast corner of cross between Jinye road and zhangbaer Road, Zhangba Street office, high tech Zone, Xi'an City, Shaanxi Province, 710076 Patentee after: Northwest Construction Co.,Ltd. of China Construction Eighth Engineering Bureau Address before: 200122 Pudong New Area, Shanghai, China (Shanghai) free trade trial area 1568 Century Avenue 27 Patentee before: CHINA CONSTRUCTION EIGHTH ENGINEERING DIVISION Co.,Ltd. |