CN108930544A - A kind of broken ground underground large space method of construction - Google Patents

A kind of broken ground underground large space method of construction Download PDF

Info

Publication number
CN108930544A
CN108930544A CN201810842672.5A CN201810842672A CN108930544A CN 108930544 A CN108930544 A CN 108930544A CN 201810842672 A CN201810842672 A CN 201810842672A CN 108930544 A CN108930544 A CN 108930544A
Authority
CN
China
Prior art keywords
steel pipe
construction
gallery
large space
broken ground
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201810842672.5A
Other languages
Chinese (zh)
Inventor
郭勇
韩仲慧
王焕
李占先
王可用
李腾
仲文强
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.)
China Railway 14th Bureau Group Co Ltd
Second Engineering Co Ltd of China Railway 14th Bureau Co Ltd
Original Assignee
China Railway 14th Bureau Group Co Ltd
Second Engineering Co Ltd of China Railway 14th Bureau Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Railway 14th Bureau Group Co Ltd, Second Engineering Co Ltd of China Railway 14th Bureau Co Ltd filed Critical China Railway 14th Bureau Group Co Ltd
Priority to CN201810842672.5A priority Critical patent/CN108930544A/en
Publication of CN108930544A publication Critical patent/CN108930544A/en
Pending legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D13/00Large underground chambers; Methods or apparatus for making them

Abstract

The present invention provides a kind of broken ground underground large space method of construction, it is related to constructing tunnel field, key step includes: to complete active well main structure, and the orifice tube of pre-buried certain diameter;It is parallel to axis direction along the contour line in structure transverse face, is successively segmented jacking large diameter steel pipe;Carry out manual digging pile construction;The position that is bordered by of bottom steel pipe, side wall steel pipe, top plate steel pipe is cut, welded, supporting respectively, forms the gallery of connection, the installation template on the inside of gallery;The assembling reinforcement in gallery, and casting concrete;After the completion of all main structure constructions, the soil body in full face tunneling underground space structure, and the steel pipe of side wall and top board structure inner bulge part is prescinded, casting concrete between bottom plate circular arc forms smooth bottom plate, applies internal structure and finishing.This method is applicable to can be carried out all soft soil horizons of steel pipe jacking, substantially increases the safety of underground space construction, reduces removal and land occupation;It saves money.

Description

A kind of broken ground underground large space method of construction
Technical field
The present invention provides a kind of broken ground underground large space methods of construction, are related to constructing tunnel field.
Background technique
21 century is the century of underground space great development, and urban development space extends from ground and upper space to underground, It is the inexorable trend of urban development.More and more underground space development projects start to have come into people's lives, and such as: underground is fast Fast channel, subway, underground storage and logistics, market place builet below the ground, underground parking, pipe gallery etc..
But the medium-and-large-sized railway station in city, intensive railway and highway communication, the building to stand in great numbers, all kinds of pipes to gather in length and breadth Line, so that urban environment becomes increasingly complex.As the scale and range of underground space development constantly expand, under complex environment Broken ground construction underground large space project is more and more, and an ultra shallow, which is buried, under such as large-scale railway station, railway, highway, Important building builds Make the big cross section underground space.
In complex condition, conventional construction method is had the following problems:
(1) from ground, strengthening stratum usually can obtain preferable effect downwards when conditions permit, but at the train station, iron When the underground space of constructing under the important construction of structures such as road, highway, stratum consolidation is carried out on ground without condition, it can only be in underground sky Interior to reinforce to surrounding formations, due to being limited by execution conditions, constructional difficulties, consolidation effect is difficult to ensure;
(2) with the increasing of underground space span, for surface settlement control within the allowable range, is needed to increase advance support and The rigidity of preliminary bracing, if stratum load and ground load act in preliminary bracing using conventional construction method, just Degree is smaller, and ground settlement is difficult to meet the requirements;
(3) stratum consolidation when due to soil mass property it is uneven, there are discrete type, safely controllable properties for reinforcing body intensity and anti-permeability performance Poor, there are security risks when construction.
Summary of the invention
In order to solve problem above, the present invention provides a kind of broken ground underground large space methods of construction.
Technical scheme is as follows: a kind of broken ground underground large space method of construction, key step include:
1) active well is built on the vacant lot at proposed underground space both ends, completes active well main structure, active well is close to construction The orifice tube of pre-buried certain diameter on underground space side wall;
2) using the cross section of proposed underground space structure as construction working face in active well, along the contour line in structure transverse face It is parallel to axis direction, jacking large diameter steel pipe is successively segmented using push bench process;
3) manual digging pile construction is carried out in the top plate steel pipe of corresponding underground space stud;
4) position that is bordered by of bottom steel pipe, side wall steel pipe, top plate steel pipe is cut, is welded, supporting respectively, form connection Gallery, the installation template on the inside of gallery;
5) assembling reinforcement in gallery, and casting concrete;
6) circulation step 4) and step 5), the soil after the completion of all main structure constructions, in full face tunneling underground space structure Body, and the steel pipe of side wall and top board structure inner bulge part is prescinded, casting concrete between bottom plate circular arc forms smooth bottom Plate applies internal structure and finishing.
Technical solution of the present invention further include: thixotropic slurry is injected between tube wall and the soil body when every steel pipe jacking in step 2, The thixotropic slurry reinforcing pipe Zhou Tuti after cement slurry displacement tube wall is used after the completion of push pipe, passes through grouting and reinforcing between adjacent two pipe.
Technical solution of the present invention further include: setting shear connector or ribs on the inside of steel pipe in step 3), when excavation pile construction, Reinforced concrete core-tube is arranged in hole wall.
Technical solution of the present invention further include: in step 3), it is adjacent that bottom plate adjacent steel pipe is carried out while excavation pile construction Position cutting, using steel plate by adjacent steel pipe transverse weld, and arranges support post.
To prevent from disposably all cutting open upper back or side soil body collapsing, guarantee construction safety.The technology of the present invention side Case further include: cutting, welding, the supporting at the adjacent position of steel pipe are carried out in two times, cutting for the first time, welding, supporting odd number section, Second of cutting, welding, supporting even number section.
Technical solution of the present invention further include: in step 5) in top plate gallery bind roof steel bar before, first in caisson Interior binding column reinforcing bar.
Technical solution of the present invention further include: bottom plate gallery and top plate gallery are poured using self-compacting concrete.
Technical solution of the present invention further include: pouring using normal concrete for side wall gallery carries out during pouring It vibrates.
Technical solution of the present invention further include: successively bottom steel pipe, side wall steel pipe and top steel pipe are carried out in step 4) Construction.
The present invention provides a kind of broken ground underground large space methods of construction, specifically have the advantage that
(1) this method is applicable to can be carried out all soft soil horizons of steel pipe jacking;
(2) all construction operations of this method carry out in steel pipe, substantially increase the safety of underground space construction.
(3) normal uses such as building, pipeline are not influenced, reduce removal and land occupation.
(4) column pile driving construction is carried out in steel pipe, the underground space compared with no column is bigger, while compared with other column construction methods It saves money.
Detailed description of the invention
Fig. 1 is Step 1: 2 half cross-section diagrams;
Fig. 2 is half cross-section diagram of step 3;
Fig. 3 is steel pipe supporting detail drawing;
Fig. 4 is half cross-section diagram of step 4;
Fig. 5 is half cross-section diagram of step 5;
Fig. 6 is half cross-section diagram of step 6;
Fig. 7 is half cross-section diagram of step 7;
Fig. 8 is half cross-section diagram of step 8;
Fig. 9 is half cross-section diagram of step 9.
Wherein, 1, the soil body, 2, steel pipe, 3, slip casting, 4, supporting construction, 4.1, support post, 4.2, interior steel plate, 4.3, outer steel Plate, 5, caisson, 6, bottom plate self-compacting concrete, 7, template, 8, normal concrete, 9, space column, 10, top plate self-compaction it is mixed Solidifying soil.
Specific embodiment
Below in conjunction with drawings and examples, the invention will be described further.
Embodiment one
Broken ground underground large space method of construction of the present invention, key step include:
Step 1: building active well on the vacant lot of proposed underground space both ends, active well main structure is completed.Work well depth, Width is greater than the outer certain distance of proposed underground space structure contour line, as subsequent handling construction space.Active well is close to construction The orifice tube of pre-buried certain diameter on underground space side wall is able to bear certain top power far from underground space side wall.
Step 2 (Fig. 1), in active well using the cross section of proposed underground space structure as construction working face, along structure The contour line in cross section is parallel to axis direction, is successively segmented jacking large diameter steel pipe using push bench process (tool pipe or push-bench) 2。
It when underground space axis is straight line, is attached between each pipeline section using welding, is adopted between each pipeline section when being curve With F type joint flanged joint.
Steel pipe jacking can be using one end active well as starting well, and other end active well, can also two work as received well Well originates received well each other, when jacking artificial using tool pipe, can also originate from two active wells to top, dock in centre.Often Thixotropic slurry is injected when root steel pipe jacking between tube wall and the soil body 1 to reduce resistance, cement slurry displacement pipe is used after the completion of push pipe Thixotropic slurry reinforcing pipe Zhou Tuti after wall.It is reinforced between two pipes by slip casting 3.
Step 3 (Fig. 2) carries out the construction of artificial digging pile 5 in the top plate steel pipe 2 of corresponding 9 position of underground space column.
Artificial digging pile 5 applies man-hour requirement and cuts steel pipe 2, and steel pipe 2 needs using measures such as ribs that notch is all before cutting While being reinforced.For the bearing capacity for increasing steel pipe and concrete, steel pipe inside setting shear connector or ribs.Caisson 5 is constructed Reinforced concrete core-tube need to be arranged in Shi Kongbi, guarantee not collapse hole.
The cutting of bottom plate adjacent steel pipe adjacency section position is carried out simultaneously, using interior steel plate 4.2 and outer steel plate 4.3 by adjacent steel pipe 2 Transverse weld, and arrange that support post 4.1 forms supporting construction 4.The cutting at the adjacent position of steel pipe 2, welding, supporting in two times into Row, cutting for the first time, welding, supporting odd number section, second of cutting, welding, supporting even number section.Cutting twice, welding, supporting are complete The gallery of connection is formed at rear all Bottom Board Steel pipes.The interior steel plate 4.2 and 4.3 thickness of outer steel plate and steel pipe walls of adjacent position welding It is thick identical.Support post 4.1 is concrete filled steel tube.
Step 4 (Fig. 4) binds baseplate reinforcing bar in bottom plate gallery, and pours self-compacting concrete 6.Reinforcing bar connection uses Mechanical connection.Column reserved steel bar should stay in caisson.Concrete reserves gas vent and injected hole using pumping.
Step 5 (Fig. 5), cutting, welding, the supporting for carrying out the adjacent position of side wall steel pipe 2, form the gallery of connection, simultaneously Lateral template 7 is installed in inside.The same step 3 of construction method.
Step 6 (Fig. 6), the assembling reinforcement in side wall gallery, and pour normal concrete 8.According to specification in casting process It vibrates.Concrete is using pumping.
Step 7 (Fig. 7), cutting, welding, the supporting for carrying out the adjacent position of top plate steel pipe 2, form the gallery of connection.Simultaneously The installation template 7 in downside.The same step 3 of construction method.
Step 8 (Fig. 8) first binds column reinforcing bar in caisson 5, then binds roof steel bar in top plate gallery, and pour Build caisson self-compacting concrete and top plate self-compacting concrete 10.The same step 4 of construction method.
Step 9 (Fig. 9) circuits sequentially step 3 to eight, after the completion of all main structure constructions, full face tunneling underground The soil body in space structure, and side wall and top board structure inner bulge part steel pipe are prescinded, casting concrete between bottom plate circular arc, shape At smooth bottom plate, internal structure and finishing are applied, that is, the decoration of construct internal anti-collision structure etc. and exterior wall.
Embodiment two
It when construction, in addition to using the sequence successively constructed to bottom-side-top, can also do, such as use in two steps Bottom side-top sequence is constructed, or is constructed using the sequence at the top of bottom-side.
Preferably, points three safer for construction.
The above is only presently preferred embodiments of the present invention, not does limitation in any form to the present invention, all at this Done any modifications, equivalent replacements, and improvements etc., should be included in protection scope of the present invention within the spirit and principle of invention Within.

Claims (9)

1. a kind of broken ground underground large space method of construction, key step include:
1) active well is built on the vacant lot at proposed underground space both ends, completes active well main structure, active well is close to construction The orifice tube of pre-buried certain diameter on underground space side wall;
2) using the cross section of proposed underground space structure as construction working face in active well, along the contour line in structure transverse face It is parallel to axis direction, jacking large diameter steel pipe (2) are successively segmented using push bench process;
3) artificial digging pile (5) are carried out in the top plate steel pipe (2) of corresponding underground space column (9) position to construct;
4) position that is bordered by of bottom steel pipe, side wall steel pipe, top plate steel pipe is cut, is welded, supporting respectively, form connection Gallery, installation template (7) on the inside of gallery;
5) assembling reinforcement in gallery, and casting concrete;
6) circulation step 4) and step 5), the soil after the completion of all main structure constructions, in full face tunneling underground space structure Body, and the steel pipe (2) of side wall and top board structure inner bulge part is prescinded, casting concrete between bottom plate circular arc is formed smooth Bottom plate applies internal structure and finishing.
2. a kind of broken ground underground large space method of construction as described in claim 1, it is characterised in that: every in step 2 Thixotropic slurry is injected when steel pipe (2) jacking between tube wall and the soil body, the thixotroping mud after cement slurry displacement tube wall is used after the completion of push pipe Reinforcing pipe Zhou Tuti is starched, is reinforced between adjacent two pipe by slip casting (3).
3. a kind of broken ground underground large space method of construction as described in claim 1, it is characterised in that: steel pipe in step 3) (2) inside setting shear connector or ribs, when caisson (5) is constructed, reinforced concrete core-tube is arranged in hole wall.
4. a kind of broken ground underground large space method of construction as described in claim 1, it is characterised in that: in step 3), The adjacent position cutting of the adjacent steel pipe (2) of bottom plate is carried out while caisson (5) is constructed, it is using steel plate that adjacent steel pipe (2) is lateral Welding, and arrange support post (4.1).
5. a kind of broken ground underground large space method of construction as claimed in claim 4, it is characterised in that: to steel pipe (2) neighbour Cutting, welding, the supporting of socket part position carry out in two times, first time cutting, welding, supporting odd number section, cut, weld for the second time, Supporting even number section.
6. a kind of broken ground underground large space method of construction as described in claim 1, it is characterised in that: right in step 5) In top plate gallery before binding roof steel bar, column reinforcing bar is first bound in caisson (5).
7. a kind of broken ground underground large space method of construction as described in claim 1, it is characterised in that: bottom plate gallery and top Plate gallery is poured using self-compacting concrete.
8. a kind of broken ground underground large space method of construction as claimed in claim 7, it is characterised in that: side wall gallery pours It builds using normal concrete (8), vibrates during pouring.
9. a kind of broken ground underground large space method of construction as described in claim 1, it is characterised in that: in step 4) according to It is secondary to construct to bottom steel pipe, side wall steel pipe and top steel pipe.
CN201810842672.5A 2018-07-27 2018-07-27 A kind of broken ground underground large space method of construction Pending CN108930544A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810842672.5A CN108930544A (en) 2018-07-27 2018-07-27 A kind of broken ground underground large space method of construction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810842672.5A CN108930544A (en) 2018-07-27 2018-07-27 A kind of broken ground underground large space method of construction

Publications (1)

Publication Number Publication Date
CN108930544A true CN108930544A (en) 2018-12-04

Family

ID=64445072

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810842672.5A Pending CN108930544A (en) 2018-07-27 2018-07-27 A kind of broken ground underground large space method of construction

Country Status (1)

Country Link
CN (1) CN108930544A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109723443A (en) * 2018-12-30 2019-05-07 中铁十四局集团有限公司 Method for tunnel construction
CN110273696A (en) * 2019-06-11 2019-09-24 中铁十四局集团第二工程有限公司 A kind of tunnel or underground space claustra formula construction method
CN113685187A (en) * 2021-08-16 2021-11-23 北京市市政一建设工程有限责任公司 Small-clear-distance multi-hole underground excavation tunnel construction process

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120155968A1 (en) * 2010-12-16 2012-06-21 Korea Engineering & Consultant Co., Ltd. Construction method of cellar for building completed
CN102536273A (en) * 2012-03-30 2012-07-04 中建市政建设有限公司 26-meter large-span space one-step forming construction method
CN103244143A (en) * 2013-05-27 2013-08-14 中铁工程设计咨询集团有限公司 Underground engineering tunneling construction method and underground station
CN104675403A (en) * 2014-12-18 2015-06-03 上海建工集团股份有限公司 Underground space construction method and supporting structure
CN106351670A (en) * 2016-10-25 2017-01-25 中铁第四勘察设计院集团有限公司 Closed pre-support tunnel structure
CN106437781A (en) * 2016-10-25 2017-02-22 中铁第四勘察设计院集团有限公司 Upper-soft lower-hard stratum tunnel supporting structure and construction method thereof
CN106930321A (en) * 2017-04-14 2017-07-07 东北大学 Underground structure novel construction method is built in a kind of pipe-jacking with large diameter combination hole stake

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120155968A1 (en) * 2010-12-16 2012-06-21 Korea Engineering & Consultant Co., Ltd. Construction method of cellar for building completed
CN102536273A (en) * 2012-03-30 2012-07-04 中建市政建设有限公司 26-meter large-span space one-step forming construction method
CN103244143A (en) * 2013-05-27 2013-08-14 中铁工程设计咨询集团有限公司 Underground engineering tunneling construction method and underground station
CN104675403A (en) * 2014-12-18 2015-06-03 上海建工集团股份有限公司 Underground space construction method and supporting structure
CN106351670A (en) * 2016-10-25 2017-01-25 中铁第四勘察设计院集团有限公司 Closed pre-support tunnel structure
CN106437781A (en) * 2016-10-25 2017-02-22 中铁第四勘察设计院集团有限公司 Upper-soft lower-hard stratum tunnel supporting structure and construction method thereof
CN106930321A (en) * 2017-04-14 2017-07-07 东北大学 Underground structure novel construction method is built in a kind of pipe-jacking with large diameter combination hole stake

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109723443A (en) * 2018-12-30 2019-05-07 中铁十四局集团有限公司 Method for tunnel construction
CN109723443B (en) * 2018-12-30 2021-07-20 中铁十四局集团有限公司 Tunnel construction method
CN110273696A (en) * 2019-06-11 2019-09-24 中铁十四局集团第二工程有限公司 A kind of tunnel or underground space claustra formula construction method
CN113685187A (en) * 2021-08-16 2021-11-23 北京市市政一建设工程有限责任公司 Small-clear-distance multi-hole underground excavation tunnel construction process
CN113685187B (en) * 2021-08-16 2023-12-01 北京市市政一建设工程有限责任公司 Construction process of small-clear-distance multi-hole undercut tunnel

Similar Documents

Publication Publication Date Title
CN106337686B (en) Three layers of subway station canopy structure of rocky stratum tunneling and construction method
CN101967985B (en) Self-propelled inverted arch template construction method
CN109488330A (en) The open cut tunnel for passing through half Packing character solution cavity adds the tunnel bottom stake hardened structure of raft
CN204729099U (en) Rock quality layer tunneling three layers of subway station canopy structure
CN104533446A (en) Construction method and structure of two-layer preliminary support for preventing geological disaster of large-section weak surrounding rock tunnel
CN110306593A (en) A kind of station construction method
CN108930544A (en) A kind of broken ground underground large space method of construction
KR101040066B1 (en) Method of constructing non-excavation type tunnel
CN104847380A (en) Tunnel lining structure internal force reducing structure and construction method thereof
CN109723443A (en) Method for tunnel construction
CN105604555A (en) Pipe-jacking tunnel and construction method of pipe-jacking tunnel
CN113062354A (en) Assembly method for prefabricated subway station of open-cut pile support system
CN103321658A (en) Molded lining support structure and construction method for soft soil ground layer
CN102359112A (en) Method for bracing foundation pit by using steel box piles
CN110700860B (en) Construction method of soil-stone boundary tunnel crossing loess valley
CN109898669B (en) Construction method for underground first-layer beam column joint by reverse construction method
JP2006132219A (en) Underground structure construction method, underground structure, and precast concrete side wall or intermediate wall/pole for use in the same
CN208669327U (en) A kind of broken ground underground volumed space building structure
KR100784201B1 (en) Method for construction of tunnel
CN211038656U (en) Large-section loess tunnel supporting system
CN210370668U (en) Earth surface reinforcing structure for extending tunnel below existing highway
CN110847206B (en) Construction method for newly-built subway tunnel to penetrate existing bridge piles
CN203321539U (en) Moulded lining support structure
CN112901213A (en) Underground roof construction method based on pipe curtain support
CN109339827A (en) The excavating construction method of multi-layer underground structure

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination