CN111270685A - Recyclable support truss, foundation pit support system and subway station construction method - Google Patents
Recyclable support truss, foundation pit support system and subway station construction method Download PDFInfo
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- CN111270685A CN111270685A CN202010215235.8A CN202010215235A CN111270685A CN 111270685 A CN111270685 A CN 111270685A CN 202010215235 A CN202010215235 A CN 202010215235A CN 111270685 A CN111270685 A CN 111270685A
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- truss
- foundation pit
- chord
- support
- enclosure
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
-
- 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
- E02D29/04—Making large underground spaces, e.g. for underground plants, e.g. stations of underground railways; Construction or layout thereof
Abstract
The application provides a support truss, a foundation pit support system and a construction method of a subway station. The support truss is used for a foundation pit support system of a construction subway station and comprises chord members and web members. The two chord members are arranged at intervals up and down, and two ends of each chord member are respectively detachably connected to the enclosure body of the foundation pit supporting system. The web members are connected between the upper chord members and the lower chord members. The application provides a supporting truss forms through using prefabricated chord member and web member concatenation to the site pouring concrete shaping's that has removed supporting truss from construction process, and strut the work and accomplish the back, can directly demolish, thereby reduced supporting truss's the construction degree of difficulty, also shortened the time limit for a project simultaneously.
Description
Technical Field
The application relates to the technical field of subway station foundation pit construction, in particular to a support truss, a foundation pit supporting system and a construction method of a subway station.
Background
In the process of the construction of subway station, in order to prevent the earth around the foundation pit from collapsing and flowing into the foundation pit, the development of normal station construction work is influenced, and the foundation pit needs to be supported. Generally, an enclosure is used for enclosure before excavation, and then a supporting member is used for supporting the enclosure after excavation to prevent the enclosure from being failed, wherein the supporting member is used as a part of an inner supporting system of a foundation pit and bears a large amount of supporting work.
In the prior art, the supporting member is generally integrally formed by pouring concrete, so that the construction period is long, the workload is large, and the result of high construction difficulty is caused.
Disclosure of Invention
In view of this, the embodiments of the present application are expected to provide a support truss, a foundation pit supporting system, and a construction method for a subway station, so as to solve the problem that the construction difficulty of the foundation pit supporting system is high.
In order to achieve the above object, a first aspect of the embodiments of the present application provides a support truss, which is used in a foundation pit support system for constructing a subway station. The excavation supporting system includes:
the two chord members are arranged at intervals up and down, and two ends of each chord member are respectively detachably connected to the enclosure body of the foundation pit supporting system; and
a web member connected between the upper chord member and the lower chord member.
Further, the chord member comprises a plurality of spliced middle chords and end chords which are respectively spliced at two ends of the middle chords; and the adjacent middle chords and the end chords and the middle chords are connected through flange structures.
Further, two ends of the first web rod piece are respectively and orthogonally connected with the chord rod piece at the upper part and the chord rod piece at the lower part; and one end of the second web member is arranged at the joint of one first web member and the chord member at the upper part, and the other end of the second web member is arranged at the joint of the other adjacent first web member and the chord member at the lower part.
Further, two adjacent second web members located between the middle chords are symmetrically arranged with respect to the first web member; and/or the distance between two adjacent first web members positioned between the middle chords is 1 m-3 m.
Further, at least one of the first web members is connected to an end of the end chord remote from the middle chord; and/or the distance between two adjacent first web members positioned between the end chords is 0.5m to 1 m.
Furthermore, an upper middle chord, a lower middle chord and at least one first web member form a middle splicing unit; and/or one end splicing unit is formed by one upper end chord member, one lower end chord member and at least one first web member.
The supporting truss that this application embodiment provided forms the supporting truss through using prefabricated chord member and web member concatenation to the cast in situ concrete shaping's that has removed the supporting truss construction process has been removed, and the back is strutted to work and has been accomplished, has also reduced the dismantlement degree of difficulty of supporting truss, thereby has reduced the construction degree of difficulty, has also shortened construction cycle, and the supporting truss can reuse.
A second aspect of an embodiment of the present application provides a foundation pit supporting system, including: the enclosure body is internally excavated to form a foundation pit; and a plurality of the supporting trusses are arranged at the upper part of the enclosure body at intervals and positioned above the foundation pit, and the supporting trusses are detachably connected with the enclosure body.
Furthermore, the enclosure body comprises an enclosure wall body, a crown beam and a retaining wall, the enclosure wall body is internally excavated to form the foundation pit, the crown beam is connected to the top end of the enclosure wall body, and the retaining wall is connected to one side of the upper part of the crown beam; the supporting truss is detachably connected to the upper portion of the crown beam, and the end portion of the supporting truss is abutted to the retaining wall.
Furthermore, the foundation pit supporting system further comprises a supporting body and a temporary stand column which are positioned in the foundation pit, two ends of the supporting body are connected to the two opposite walls of the enclosure wall, and the temporary stand column is connected with the supporting body and the supporting truss respectively.
The foundation pit supporting system provided by the embodiment of the application has the same technical effect due to the adoption of the supporting truss in any one of the embodiments, and the details are not repeated.
A third aspect of the embodiments of the present application provides a method for constructing a subway station, where, with the foundation pit supporting system provided in any one of the above embodiments, the method includes: constructing an enclosure body of the foundation pit supporting system; detachably connecting the supporting truss on the upper part of the enclosure body; excavating a foundation pit in the enclosure body to a preset depth; constructing a main body frame of a station in the foundation pit; and disassembling the connection between the supporting truss and the enclosure body.
The construction method of the subway station provided by the embodiment of the application has the same technical effect due to the adoption of the foundation pit supporting system provided by any one of the above embodiments, and is not repeated herein.
Drawings
Fig. 1 is a front view in one direction of an excavation retaining system provided in accordance with an embodiment of the present application;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3a is a front view of an orientation of an intermediate chord member provided in accordance with an embodiment of the present application;
FIG. 3b is a side view of the flange structure of FIG. 3 a; and
fig. 4 is a flowchart of a subway station construction method according to an embodiment of the present application.
Description of reference numerals:
100. supporting the truss; 1. a chord member; 11. a middle chord; 12. an end chord; 2. a web member; 21. a first web member bar; 22. a second web member; 3. a flange structure; 31. mounting holes; 41. a middle splicing unit; 42. an end splicing unit; 5. and a filler.
200. An enclosure; 210. a containment body; 220. a crown beam; 221. a first pre-buried connecting piece; 230. a retaining wall; 310. a support body; 320. a temporary upright post; 321 a second pre-buried connecting piece; 330. the beam is connected.
410. A station roof; 420. a middle plate of a station; 430. a station floor.
Detailed Description
It should be noted that, in the present application, technical features in examples and embodiments may be combined with each other without conflict, and the detailed description in the specific embodiment should be understood as an explanation of the gist of the present application and should not be construed as an improper limitation to the present application.
The directional terms described in this application are used only for convenience in describing the application and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the application.
In the process of constructing the foundation pit of the subway station, the enclosure body 200 is generally constructed before excavation, and then the foundation pit supporting system is continuously constructed in the foundation pit while excavation is performed from top to bottom. And when the lowest end is excavated, the subway station is built from bottom to top, and in the process, the partial structure of the foundation pit supporting system is dismantled from bottom to top. The excavation supporting system generally includes an enclosure 200 and a support truss 100. In general, the support truss 100 is usually constructed by cast-in-place concrete molding, and after the support work is completed, the support truss 100 is chiseled by chiseling, so that a longer construction period is caused, the construction difficulty is increased, and a certain amount of resource waste is caused.
In view of the above, a first aspect of the embodiments of the present application provides a reusable support truss 100, please refer to fig. 1, for use in a foundation pit supporting system for constructing a subway station. The support truss 100 comprises chord members 1 and web members 2. The two chord members 1 are arranged at intervals up and down, and two ends of each chord member 1 are respectively detachably connected to the enclosure body 200 of the foundation pit supporting system. The web members 2 are connected between the upper chord members 1 and the lower chord members 1.
In one embodiment, please refer to fig. 1, which illustrates an application of the support truss 100 provided in the present application in a foundation pit supporting system for constructing a subway station. The excavation supporting system includes an enclosure 200 and a support truss 100. A foundation pit is formed by digging in the enclosure 200, and a plurality of support trusses 100 are arranged on the enclosure 200 at intervals and above the foundation pit. By providing the support truss 100 between two parallel walls of the enclosure 200, a resistance force perpendicular to the inner wall of the foundation pit is provided to the enclosure 200, thereby improving the supporting strength of the enclosure 200. The support truss 100 provided by the present application is connected between the two prefabricated upper and lower parallel chord members 1 by using the prefabricated web members 2 to form the support truss 100.
The application provides a support truss 100, owing to adopt prefabricated chord member 1 and the concatenation of web member 2 to form to the construction process of traditional cast in situ concrete has been removed from. After the supporting work is finished, the supporting truss 100 can be detached, so that the repeated utilization is facilitated, the construction process is simplified, and the construction difficulty is reduced.
Preferably, in order to secure the supporting strength of the chord member 1 and the web member 2 while reducing the cost, both are cast with concrete.
Further, in an embodiment, referring to fig. 1, the present application provides a support truss 100 in which the chord member 1 includes a plurality of middle chords 11 and end chords 12 respectively connected to two ends of the middle chords 11. The adjacent middle chords 11 and the end chords 12 and the middle chords 11 are connected by the flange structure 3, see fig. 3a and 3 b. By splicing the plurality of middle chords 11 and the end chords 12 at the two ends to form the chord member 1, the number of the middle chords 11 can be flexibly selected in the assembling process according to the required length during construction.
Specifically, referring to fig. 3a and 3b, the flange structures 3 are disposed at the ends of the middle chords 11 or the end chords 12, mounting holes 31 are formed around the flange structures near the boundaries, the flange structures 3 are fitted between adjacent middle chords 11 or between the middle chords 11 and the end chords 12, and the mounting holes 31 of the two flange structures 3 are aligned and then fastened by bolts. When the bolt needs to be detached, the bolt is detached. This connected mode is simple high-efficient, and the dismouting of being convenient for is convenient for reuse middle chord 11 and tip chord 12.
In one embodiment, referring to fig. 1, the present application provides a support truss 100 in which the web members 2 include a first web member 21 and a second web member 22. The two ends of the first web member 21 are orthogonally connected to the upper chord member 1 and the lower chord member 1, respectively. One end of the second web member 22 is disposed at the connection between one first web member 21 and the upper chord member 1, and the other end is disposed at the connection between the other adjacent first web member 21 and the lower chord member 1. By arranging the first web member 21 to be orthogonally connected to the upper chord member 1 and the lower chord member 1, respectively, the first web member 21 provides the chord member 1 with a supporting force in the vertical direction. The second web member 22 is disposed obliquely, and provides an oblique supporting force for the chord member 1, so as to further improve the supporting strength of the supporting truss 100 to the enclosure 200.
Further, in an embodiment, referring to fig. 1, the present application provides a support truss 100 in which two adjacent second web members 22 between the middle chords 11 are symmetrically disposed with respect to the first web member 21. Thus, at the joint of the first web member 21 and the two second web members 22 at the upper chord member 1 and the lower chord member 1, respectively, a three-point support is formed, and the two adjacent second web members 22 apply symmetrical force to the upper chord member 1 or to the lower chord member 1, thereby being beneficial to the stable balance state of the supporting truss 100 and further improving the supporting strength.
In an embodiment, in the support truss 100 provided by the present application, in order to ensure the strength of the support truss 100 itself and prevent the support failure of the enclosure 200 from happening, the distance between two adjacent first web members 21 between the middle chords 11 is 1m to 3m, for example, may be 1m, 1.5m, 1.8m, 2m, 2.4m, 2.7m, or 3m, etc., so as to avoid the excessively long interval between the first web members 21, and the strength of the support truss 100 is low, which is not enough to form an effective support for the enclosure 200.
In one embodiment, referring to fig. 1, the present application provides a support truss 100 in which at least one first web member 21 is connected to an end of the end chord 12 remote from the middle chord 11. Thereby forming a closed support for the support truss 100 and effectively improving the support strength of the support truss 100.
In one embodiment, the present application provides a support truss 100 in which the distance between two adjacent first web members 21 between the end chords 12 is 0.5m to 1 m. For example, 0.8m, and the lower spacing of the first link members 21 between the end chords 12 can effectively improve the supporting strength of the end of the supporting truss 100.
In one embodiment, referring to fig. 1, the present application provides a support truss 100 in which an upper middle chord 11, a lower middle chord 11 and at least one first web member 21 form a middle splicing unit 41. In particular, the intermediate splice unit 41 may comprise one first web member 21, or may comprise 2 or more first web members 21, selected according to actual construction requirements. During the field construction, the intermediate splicing unit 41 may be spliced as a whole. Therefore, the prefabricated middle splicing units 41 can be spliced well before construction, and the time of field construction is further shortened.
In one embodiment, referring to fig. 1, the present application provides a support truss 100 in which an upper end chord 12, a lower end chord 12 and at least one first web member 21 form an end splicing unit 42. Like the middle splicing unit 41, the end splicing units 42 can be spliced well before construction, so that on-site splicing is avoided, the construction difficulty is reduced, and the on-site construction time is saved.
It can be understood that, when the middle splicing units 41 and the end splicing units 42 are adopted simultaneously, in the process of field construction, the assembling work of the field supporting truss 100 can be completed only by splicing a plurality of middle splicing units 41 between the two end splicing units 42, so that the assembling and disassembling time of the field supporting truss 100 is greatly reduced.
It should be noted that the intermediate joint unit 41 may be formed by respectively casting the intermediate chord 11 and the first web member 21 with concrete and then connecting them together with a connecting member, or may be integrally formed during casting of concrete. Similarly, the end splicing unit 42 may be formed by respectively casting the end chords 12 and the first web member 21 with concrete and then connected together by connecting members to form the end splicing unit 42, or may be integrally formed during casting with concrete.
A second aspect of an embodiment of the present application provides an excavation supporting system, please refer to fig. 1. The excavation supporting system comprises the enclosure 200 and the support truss 100 provided in any of the above embodiments. Excavation forms the foundation ditch in the enclosure 100, and a plurality of support truss 100 intervals set up on enclosure 200, are located the top of foundation ditch, and support truss 100 is connected with enclosure 200 detachably.
The foundation pit supporting system provided by the embodiment of the application has the same technical effect due to the adoption of the supporting truss 100 provided by any one of the above embodiments, and the details are not repeated herein.
Further, in an embodiment, referring to fig. 1, in the foundation pit supporting system provided by the present application, the enclosure body 200 includes an enclosure wall 210, a crown beam 220 and a retaining wall 230. A foundation pit is formed by digging in the enclosure wall 210, the crown beam 220 is connected to the top end of the enclosure wall 210, and the retaining wall 230 is connected to one side of the upper part of the crown beam 220. The support truss 100 is detachably attached to the upper portion of the crown beam 220, and the end of the support truss abuts against the retaining wall. The chord member 1 of (1) is connected to the crown beam 220, and the chord member 1 of (1) at the lower part is connected to the enclosure wall 210. By providing the crown beam 220 and connecting the support frame 100 with the crown beam 220, convenience in mounting and dismounting the support truss 100 can be improved, and the retaining wall 230 has a certain limiting effect on both ends of the support truss 100.
In a preferred embodiment, referring to fig. 2, in the foundation pit supporting system provided by the present application, the top beam 220 has a first pre-buried connector 221, and the supporting truss 100 is fixedly connected to the top beam 220 through the first pre-buried connector 221. Specifically, the first pre-embedded connector 221 may be a pre-embedded anchor bolt or a pre-embedded bolt, and accordingly, a corresponding position of the support truss 100 should have a connecting hole matched therewith, and after the two are matched, the two are fastened by a nut. This connection is simple and facilitates the removal of the support truss 100 after the support work is completed.
In one embodiment, referring to fig. 2, in the retaining wall 230 and the supporting truss 100 of the foundation pit supporting system provided by the present application, a filling body 5 is formed therebetween. Specifically, the filling body 5 is formed by in-situ casting mortar or concrete, so that the displacement of the two ends of the support truss 100 is completely limited, the connection strength of the two ends of the support truss 100 is enhanced, and the working reliability of the support truss 100 is further improved.
In an embodiment, referring to fig. 1, in the foundation pit supporting system provided by the present application, the foundation pit supporting system further includes a supporting body 310 and a temporary pillar 320 located in the foundation pit, two ends of the supporting body 310 are connected to two walls opposite to the enclosure wall 210, and the temporary pillar 320 is connected to the supporting body 310 and the supporting truss 100, respectively. In particular, as the excavation depth of the foundation pit becomes deeper and deeper during the construction of the foundation pit, it is required to continuously install the supporting bodies 310 on the enclosure 1 to provide effective support to the enclosure 200. According to the difference of the depth of the foundation pit and the distance between the two walls of the enclosure 200 in the foundation pit, the supporting force required by the enclosure 200 is different, so that a proper number of supporting bodies 310 can be arranged according to the requirements of site construction. When the span of the supporting body 310 is relatively large, the middle portion of the supporting body 310 is subjected to a relatively large bending deformation, so that a relatively large bending stress is generated inside the supporting body 310. At this time, the temporary columns 320 are provided to provide a certain support to the middle portion of the supporting body 310, thereby reducing the bending stress of the middle portion of the supporting body 1.
Specifically, support 310 and temporary upright 320 are connected by tie beam 330. In the foundation pit supporting system, a plurality of supporting bodies 310 are arranged on the same horizontal plane at intervals, the supporting bodies 310 are supported by different temporary columns 320, and the plurality of supporting bodies 310 on the same horizontal plane can be respectively connected with the temporary columns 320 through the connecting beams 330, so that the connection between the supporting bodies 310 and the temporary columns 320 is more reliable, and the overall strength of the foundation pit supporting system is also improved due to the addition of the connecting beams 330.
The temporary columns 320 may be connected to the support truss 100 by flange members or bolts. In a preferred embodiment, referring to fig. 1, in the foundation pit supporting system provided in the present application, one end of the temporary upright post 320 has a second pre-embedded connector 321, and the temporary upright post 320 is connected to the supporting truss 100 through the second pre-embedded connector 321. Specifically, the second embedded connector 321 may be an embedded anchor bolt or an embedded bolt, and accordingly, a connecting hole should be formed in a corresponding position of the support truss 100, and after the two are matched, only a nut needs to be used for fastening. The connection mode is simple and quick, and the disassembly and the assembly are convenient.
It can be understood that, conventionally, by arranging the upright post pile to support the temporary upright post 320, the upright post pile needs to be constructed in the same period as the building envelope, and needs to be subjected to a compression test, so that the construction period is long, and the test is complex. In the application, the supporting truss 100 has a large bearing capacity, can be directly connected with the temporary upright post 320, bears the weight of the temporary upright post 320, the connecting beam and the supporting body 310, can avoid the arrangement of an upright post pile below the temporary upright post 320, reduces the construction process and saves engineering materials.
A third aspect of the embodiments of the present application provides a method for constructing a subway station, please refer to fig. 4, where a foundation pit supporting system provided in any one of the above embodiments is adopted, and the method includes:
s1, constructing an enclosure body 200 of a foundation pit supporting system;
s2, detachably connecting the supporting truss 100 to the upper part of the enclosure 200;
s3, excavating a foundation pit in the enclosure 200 to a preset depth;
s4, constructing a main body frame of the station in the foundation pit;
and S5, disassembling the connection between the supporting truss 100 and the enclosure body 210.
The construction method of the subway station provided by the embodiment of the application has the same technical effect due to the adoption of the foundation pit supporting system provided by any one of the above embodiments, and is not repeated herein.
It should be noted that, in the process of excavating the foundation pit, the supporting truss 100 needs to be installed between the walls of the enclosure 200, and the preset first depth in step S2 is the depth at which the supporting truss 100 can be constructed, which is determined according to the preset installation position of the supporting truss 100. And continuously excavating the foundation pit, wherein the support body 100 is required to be installed at a corresponding depth according to the bearing capacity of the enclosure body 200 and the width of the foundation pit in the process of excavating the foundation pit.
According to the position of the designed station bottom plate 430, when digging the second preset depth, namely when the station bottom plate 430 is to be constructed, the main frame of the station is not dug downwards any more, and the construction is started, wherein the main frame comprises the station bottom plate 430, a station wall body, a station upright post and a station middle plate 420. It is understood that the support body 300 should be sequentially removed from the bottom up in the process of constructing the main body frame of the station from the bottom up.
The various embodiments/implementations provided herein may be combined with each other without contradiction.
The above description is only a preferred embodiment of the present application and is not intended to limit 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.
Claims (10)
1. The utility model provides a reuse's support truss for in the excavation supporting system of construction subway station, its characterized in that, support truss includes:
the two chord members are arranged at intervals up and down, and two ends of each chord member are respectively detachably connected to the enclosure body of the foundation pit supporting system; and
a web member connected between the upper chord member and the lower chord member.
2. The support truss of claim 1,
the chord member comprises a plurality of spliced middle chords and end chords which are respectively spliced at two ends of the middle chords;
and the adjacent middle chords and the end chords and the middle chords are connected through flange structures.
3. The support truss of claim 2 wherein the web member comprises:
two ends of the first web rod piece are respectively orthogonally connected with the chord rod piece at the upper part and the chord rod piece at the lower part; and
and one end of the second web member bar is arranged at the joint of one first web member bar and the chord member bar at the upper part, and the other end of the second web member bar is arranged at the joint of the other adjacent first web member bar and the chord member bar at the lower part.
4. The support truss of claim 3 wherein adjacent two of said second web members between said intermediate chords are symmetrically disposed with respect to said first web member; and/or the presence of a gas in the gas,
and the distance between two adjacent first web members positioned between the middle chords is 1 m-3 m.
5. A support truss according to claim 3 wherein at least one of said first web members is connected to an end of said end chord remote from said intermediate chord; and/or the presence of a gas in the gas,
and the distance between two adjacent first web members positioned between the end chords is 0.5-1 m.
6. The support truss of claim 3 wherein an upper one of said intermediate chords, a lower one of said intermediate chords, and at least one of said first web members comprise an intermediate splice unit; and/or the presence of a gas in the gas,
one end part chord member on the upper part, one end part chord member on the lower part and at least one first web member form an end part splicing unit.
7. An excavation supporting system, comprising:
the enclosure body is internally excavated to form a foundation pit; and
the support truss of any one of claims 1-6, wherein a plurality of the support trusses are spaced apart from one another above the enclosure and above the excavation, the support trusses being removably connected to the enclosure.
8. The foundation pit supporting system according to claim 7, wherein the enclosure comprises an enclosure wall, a crown beam and a retaining wall, the enclosure wall is excavated to form the foundation pit, the crown beam is connected to the top end of the enclosure wall, and the retaining wall is connected to one side of the upper part of the crown beam;
the supporting truss is detachably connected to the upper portion of the crown beam, and the end portion of the supporting truss is abutted to the retaining wall.
9. The system according to claim 7 or 8, further comprising a support body and a temporary upright post in the pit, wherein two ends of the support body are connected to two walls opposite to the enclosure wall, and the temporary upright post is connected to the support body and the support truss respectively.
10. A construction method of a subway station, which adopts the foundation pit supporting system as claimed in any one of claims 7 to 9, wherein the construction method comprises:
constructing the enclosure body of the foundation pit supporting system;
detachably connecting the supporting truss on the upper part of the enclosure body;
excavating a foundation pit in the enclosure body to a preset depth;
constructing a main body frame of a station in the foundation pit;
and disassembling the connection between the supporting truss and the enclosure body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010215235.8A CN111270685A (en) | 2020-03-24 | 2020-03-24 | Recyclable support truss, foundation pit support system and subway station construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010215235.8A CN111270685A (en) | 2020-03-24 | 2020-03-24 | Recyclable support truss, foundation pit support system and subway station construction method |
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| Publication Number | Publication Date |
|---|---|
| CN111270685A true CN111270685A (en) | 2020-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010215235.8A Pending CN111270685A (en) | 2020-03-24 | 2020-03-24 | Recyclable support truss, foundation pit support system and subway station construction method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114934522A (en) * | 2022-06-30 | 2022-08-23 | 广州地铁设计研究院股份有限公司 | Outward convex connecting joint of underground enclosing structure and construction method |
| CN115110519A (en) * | 2022-06-30 | 2022-09-27 | 广州地铁设计研究院股份有限公司 | Connecting joint of underground continuous wall, tire membrane waist beam and prefabricated support and construction method |
-
2020
- 2020-03-24 CN CN202010215235.8A patent/CN111270685A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114934522A (en) * | 2022-06-30 | 2022-08-23 | 广州地铁设计研究院股份有限公司 | Outward convex connecting joint of underground enclosing structure and construction method |
| CN115110519A (en) * | 2022-06-30 | 2022-09-27 | 广州地铁设计研究院股份有限公司 | Connecting joint of underground continuous wall, tire membrane waist beam and prefabricated support and construction method |
| CN114934522B (en) * | 2022-06-30 | 2023-10-03 | 广州地铁设计研究院股份有限公司 | Outer convex type connection node of underground enclosure structure and construction method |
| CN115110519B (en) * | 2022-06-30 | 2023-10-10 | 广州地铁设计研究院股份有限公司 | Connecting node for underground diaphragm wall, tire membrane waist beam and prefabricated support and construction method |
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