CN204282399U - A kind of subway space enclosing structure - Google Patents

A kind of subway space enclosing structure Download PDF

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Publication number
CN204282399U
CN204282399U CN201420685013.2U CN201420685013U CN204282399U CN 204282399 U CN204282399 U CN 204282399U CN 201420685013 U CN201420685013 U CN 201420685013U CN 204282399 U CN204282399 U CN 204282399U
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China
Prior art keywords
subway
construction
fender post
space enclosing
board
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CN201420685013.2U
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Chinese (zh)
Inventor
阮艳妹
于健
王睿
唐文鹏
郑石
王建
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou Metro Design and Research Institute Co Ltd
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Guangzhou Metro Design and Research Institute Co Ltd
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Priority to CN201420685013.2U priority Critical patent/CN204282399U/en
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Abstract

The utility model also provides a kind of subway space enclosing structure, comprises the stair-stepping fender post/wall of buried secondary, the exposure position of the ladder junction of fender post/wall is provided with fill material portion.Improve top-down straight method method by said structure, at the parting of the ways, congested in traffic, construction plant is narrow, without putting slope condition, or under sand-pebble layer environment, and the operability of construction.

Description

A kind of subway space enclosing structure
Technical field
The utility model relates to subway work field, particularly a kind of subway space enclosing structure.
Background technology
In the downtown area of heavy traffic, when road traffic can not build rail traffic station under the road of prolonged stoppage, for reducing the impact of construction period on traffic above-ground and business, station structure can adopt digging method construction.
Cap excavation method is different according to the step of construction, can be divided into top-down invers method method and top-down straight method method.Top-down straight method method wherein a kind of form directly utilizes station agent structure top board, space enclosing structure and intermediate sup-poning pile as stress system, i.e. recovered part traffic after earthing; Then tunneling under the top plate.The node connected mode Normal practice of agent structure top board and space enclosing structure is that subway top board and space enclosing structure depart from completely, and it is simply supported slab that lid digs top board in the construction stage, makes side wall waterproof continuous.During construction subway top board, the above foundation ditch of top board generally adopts and puts slope, the mode such as soil nailing or anchor pole of beating carries out supporting, Guan Liang is reduced to below top board face, this structure at the parting of the ways, traffic congestion, construction plant is narrow, without putting slope condition, or in the construction site poor operability of sand-pebble layer steel sheet pile, safety is not enough.
Utility model content
The utility model object is to overcome the deficiencies in the prior art, provides a kind of subway space enclosing structure, ensures the structural safety of the little foundation ditch of excavation, construction Guan Liang.
In order to achieve the above object, the utility model is by the following technical solutions:
A kind of subway space enclosing structure, comprises the stair-stepping fender post/wall of buried secondary, the exposure position of the ladder junction of fender post/wall is provided with fill material portion.
As preferably, between fill material portion and exposure position, be from bottom to top provided with Guan Liang, subway top board; The top of described fender post/wall is provided with collar tie beam; Described collar tie beam end face is concordant with ground; The upper surface in described fill material portion and collar tie beam either flush.
As preferably, described fill material portion is made up of cystosepiment, box punching block or wooden model.
As preferably, described ladder junction is in arbitrary degree of depth of 3.5 meters ~ 5.4 meters of below ground.
Compared with prior art, the utility model has following beneficial effect:
By said structure, ensure the structural safety during the little foundation ditch of excavation, construction Guan Liang, top board.Improve top-down straight method method, at the parting of the ways, congested in traffic, construction plant is narrow, without putting slope condition, or under sand-pebble layer environment, and the operability of construction.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of subway space enclosing structure described in the utility model.
In figure:
1-fender post/wall; 11-first fender post/wall; 12-second fender post/wall; 2-ground; 3-Guan Liang; 4-collar tie beam; 5-top board; 6-fill material portion.
Detailed description of the invention
Now the utility model is described in further detail with specific embodiment by reference to the accompanying drawings.
Composition graphs 1, the construction method of subway space enclosing structure described in the utility model, comprises the following steps successively:
A, determine fender post/wall 1 size and build position.
B, pore-forming/groove be clear hole/groove also; Make reinforcing cage, reinforcing cage is provided with the datum flushing in ground 2.Reinforcing cage 2 is two layers of stepped reinforcing cage, and ladder junction can be in arbitrary degree of depth of 3.5 meters ~ 5.4 meters of below datum.Reinforcing cage is placed in hole/groove.Face as C instruction is ladder junction, and two layers of stair-stepping two layers of ladder connecting part are ladder junction.
Pore-forming mode is divided into manually digging hole and mechanical borehole, and grooving mode is mechanical grooving.Manually digging hole concrete steps are as follows: build two-layer retaining wall reinforcing bar in the outer rim of building position of fender post, then building position by manually carrying out borehole.Machinery borehole/groove can use auger borehole/groove.
C, for the first time concreting: to reinforcing cage concreting to ladder junction, form second fender post/wall;
D, by the design of predetermined fender post/wall, above install in the exposure position (the D portion in Fig. 1 is exposure position) of ladder junction the fill material portion 6 be made up of cystosepiment, box punching block or wooden model, the upper surface in fill material portion 6 flushes in datum;
E, second time concreting; Before the concrete initial set of second fender post/wall 12, to reinforcing cage concreting more than ladder junction until datum, form first fender post/wall 11;
Maintaining pile/the wall be made by two-step pouring be two layers stepped, corresponding to reinforcing cage, in Fig. 1, native side is met for it in A side, and native side is carried on the back for it in B side, C instruction face be its ladder junction, D portion is the exposure position of ladder junction.
Complete a-e step, Stability Analysis of Structures when can ensure to excavate little foundation ditch, construction hat beam, construction safety.
F, excavation top board 5 foundation ditch; Construction hat beam 3 in the exposure position of ladder junction;
At the top of first fender post/wall 11 construction collar tie beam 4 behind the wall top of g, the pile crown cutting first fender post or first enclosure wall;
Complete a-f step, when can ensure to build subway top board 5, Stability Analysis of Structures, construction safety.
H, build subway top board 5.
Complete a-h step, when ensureing to build all the other structures of subway, the construction safety of whole subway station, Stability Analysis of Structures.
When building fender post, b step is pore-forming and clear hole, and reinforcing cage 2 is placed in hole; When building enclosure wall, b step is grooving and clear groove, and reinforcing cage 2 is placed in groove.
As shown in Figure 1, for a kind of subway space enclosing structure of the present utility model, comprise the stair-stepping fender post/wall 1 of buried secondary, the exposure position of the ladder junction of fender post/wall 1 arranges hat beam 3, hat beam 3 arranges subway top board 5, subway top board 5 is arranged cystosepiment, box punching block or wooden model; The top of fender post/wall 1 is provided with collar tie beam 4; Collar tie beam 4 end face is concordant with ground 2; The height that cystosepiment, box punching block or wooden model are arranged and collar tie beam 4 either flush.Ladder junction is in arbitrary degree of depth of 3.5 meters ~ 5.4 meters of below ground.Described subway space enclosing structure ensures the structural safety during excavation top board 5 foundation ditch, construction hat beam 3, subway top board 5, construction safety.
When subway space enclosing structure is: comprise the stair-stepping fender post/wall of buried secondary, the exposure position of the ladder junction of fender post/wall is provided with fill material portion.Described subway space enclosing structure ensures the structural safety of excavation top board 5 foundation ditch, construction hat beam 3, construction safety.Subway space enclosing structure described in this section realizes by the step a-e of above-mentioned construction method.
In the utility model:
Cystosepiment, box punching block or wooden model, auxiliary fender post/wall 1 is shaping, and easily removes, and facilitates construction in later period.
Ladder junction is in arbitrary degree of depth of 3.5 meters ~ 5.4 meters of below ground: ladder junction is in this position, ensure that the building structure that fender post/wall and top board are formed is more stable, make the stressed more reasonable of fender post/wall, ensure that playing gear fortifield village protects effect, also ensure that top board is normally stressed, Stability Analysis of Structures.
Subway space enclosing structure described in the utility model, make top-down straight method method build subway in traffic congestion, construction plant is narrow, and without putting slope condition, or operability improves under sand-pebble layer steel sheet pile construction environment.When subway engineering construction by place or geological conditions affect cannot adopt conventional put slope, the construction of steel sheet pile support pattern, ensure excavation top board 5 foundation ditch, structural safety during beam 3, subway top board 5 be preced with in construction.
The utility model is not limited to above-mentioned embodiment, if do not depart from spirit and scope of the present utility model to various change of the present utility model or modification, if these are changed and modification belongs within claim of the present utility model and equivalent technologies scope, then the utility model is also intended to comprise these changes and variation.

Claims (4)

1. a subway space enclosing structure, is characterized in that, comprises the stair-stepping fender post/wall of buried secondary, the exposure position of the ladder junction of fender post/wall is provided with fill material portion.
2. subway space enclosing structure according to claim 1, is characterized in that, is from bottom to top provided with Guan Liang, subway top board between fill material portion and exposure position; The top of described fender post/wall is provided with collar tie beam; Described collar tie beam end face is concordant with ground; The upper surface in described fill material portion and collar tie beam either flush.
3. subway space enclosing structure according to claim 1 and 2, is characterized in that, described fill material portion is made up of cystosepiment, box punching block or wooden model.
4. subway space enclosing structure according to claim 1 and 2, is characterized in that, described ladder junction is in arbitrary degree of depth of 3.5 meters ~ 5.4 meters of below ground.
CN201420685013.2U 2014-11-14 2014-11-14 A kind of subway space enclosing structure Active CN204282399U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420685013.2U CN204282399U (en) 2014-11-14 2014-11-14 A kind of subway space enclosing structure

Applications Claiming Priority (1)

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Publications (1)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105586985A (en) * 2014-11-14 2016-05-18 广州地铁设计研究院有限公司 Construction method of subway envelop enclosure structure and subway envelop enclosure structure
CN105781570A (en) * 2016-04-14 2016-07-20 广州地铁设计研究院有限公司 Metro internal-bracing-free track panel shaft and construction method thereof
CN106013241A (en) * 2016-07-12 2016-10-12 中铁第勘察设计院集团有限公司 Crown beam foundation trench upright construction and cover-excavation method station combination structural system and construction method
CN107119711A (en) * 2017-07-06 2017-09-01 中国铁路设计集团有限公司 A kind of connected structure and construction method for abutting existing transfer station on a large scale

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105586985A (en) * 2014-11-14 2016-05-18 广州地铁设计研究院有限公司 Construction method of subway envelop enclosure structure and subway envelop enclosure structure
CN105781570A (en) * 2016-04-14 2016-07-20 广州地铁设计研究院有限公司 Metro internal-bracing-free track panel shaft and construction method thereof
CN106013241A (en) * 2016-07-12 2016-10-12 中铁第勘察设计院集团有限公司 Crown beam foundation trench upright construction and cover-excavation method station combination structural system and construction method
CN106013241B (en) * 2016-07-12 2018-06-08 中铁第一勘察设计院集团有限公司 Guan Liang foundation trench uprightly performs and cap excavation method station integrated structure system and construction method
CN107119711A (en) * 2017-07-06 2017-09-01 中国铁路设计集团有限公司 A kind of connected structure and construction method for abutting existing transfer station on a large scale

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CP01 Change in the name or title of a patent holder

Address after: 510010 No. 204 Huanshi West Road, Guangzhou City, Guangdong Province

Patentee after: Guangzhou Metro Design and Research Institute Co., Ltd.

Address before: 510010 No. 204 Huanshi West Road, Guangzhou City, Guangdong Province

Patentee before: Guangzhou Metro Design & Research Institute Co., Ltd.

CP01 Change in the name or title of a patent holder