CN104612722A - Tunnel gate strengthening method for starting and arriving of annular shield or annular pushing pipe - Google Patents

Tunnel gate strengthening method for starting and arriving of annular shield or annular pushing pipe Download PDF

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Publication number
CN104612722A
CN104612722A CN201510006724.1A CN201510006724A CN104612722A CN 104612722 A CN104612722 A CN 104612722A CN 201510006724 A CN201510006724 A CN 201510006724A CN 104612722 A CN104612722 A CN 104612722A
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CN
China
Prior art keywords
annular
portal
steel ring
enclosure
push pipe
Prior art date
Application number
CN201510006724.1A
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Chinese (zh)
Other versions
CN104612722B (en
Inventor
白云
陈昂
李乔松
Original Assignee
同济大学
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 同济大学 filed Critical 同济大学
Priority to CN201510006724.1A priority Critical patent/CN104612722B/en
Publication of CN104612722A publication Critical patent/CN104612722A/en
Application granted granted Critical
Publication of CN104612722B publication Critical patent/CN104612722B/en

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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/38Waterproofing; Heat insulating; Soundproofing; Electric insulating
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/04Lining with building materials
    • E21D11/10Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/06Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
    • E21D9/0607Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining the shield being provided with devices for lining the tunnel, e.g. shuttering

Abstract

The invention relates to a tunnel gate strengthening method for a starting and an arriving of an annular shield or an annular pushing pipe. The method comprises the steps that tunnel gate water stop steel ring is arranged on an enclosure wall; horizontal strengthening anchor rods are arranged in the tunnel gate of the enclosure wall; a concrete cover in two layers of the tunnel gate water stop steel ring is judged whether a rebar exists or not, if the rebar exists, the tunnel gate water stop steel ring is rearranged, if the rebar do not exist, an annular shield machine or an annular pipe pushing machine is used to explode the enclosure wall in sequence, the starting operation is completed, and a lining is formed; after a tunnel holing-through is conducted, the enclosure wall of an outer portion of the water stop steel ring is chiseled and removed, drainage for a soil body in a tunnel is conducted, the horizontal strengthening rods are removed, and an excavation of the rest soil body is conducted. Compared with the prior art, the tunnel gate strengthening method for the starting and the arriving of the annular shield or the annular pushing pipe has the advantages that the method is simple and easy, safe and reliable and the like.

Description

The portal reinforcement means that a kind of annular shield structure or annular push pipe start and arrive
Technical field
The present invention relates to a kind of construction of tunnel technical field, especially relate to the portal reinforcement means that a kind of annular shield structure or annular push pipe start and arrive.
Background technology
Along with urban ground space development gradually improve with saturated, the Chinese government build resource-conserving and environment-friendly society background under, more and more the starting point has been put in the exploitation of the underground space.Exploitation due to the underground space has high cost, excessive risk and irreversibility, how to use advanced science and technology and construction equipment reasonably the underground space to be developed and utilized to the key point becoming and solve this problem.
Annular shield structure or circular top Manifold technology are a kind of construction technologies differing from conventional shield structure or pipe jacking method, its main construction characteristic is first excavate the soil body in the annular section of once lining place, and apply once lining, again entirety excavation is carried out to the once lining inside soil body after treating tunnel holing through, and apply secondary lining.Its major advantage is that tunnel-shaped and size are unrestricted in theory.
Current conventional shield structure or push pipe start and the portal reinforcement means that arrives mainly to carrying out slip casting in soil body certain limit after portal or fender post formula is reinforced, it is stable and play sealing effect to be intended to strengthen excavation face when soil strength ensures export & import.But owing to being annular section excavation when annular shield structure or circular top pipe construction, not full face excavation, therefore the problems referred to above can obtain reasonable solution, but the portal enclosure wall structure of annular hole door holder water steel ring inside is owing to lacking surrounding supporting, the tunnel internal soil body lacks support, all there is overall danger of caving in active well, this will be a problem demanding prompt solution.
Summary of the invention
Object of the present invention be exactly in order to overcome above-mentioned prior art exist defect and the portal reinforcement means that a kind of simple, safe and reliable annular shield structure or annular push pipe start and arrive is provided.
Object of the present invention can be achieved through the following technical solutions:
The portal reinforcement means that annular shield structure or annular push pipe start and arrive, comprises the following steps:
1) on starting well, received well portal enclosure wall, apply portal sealing steel ring, this portal sealing steel ring is provided with two-layer, and its setting position corresponds to the inside and outside both sides of annular shield machine or annular push pipe engine housing;
2) within the scope of the portal sealing steel ring of inner side, apply horizontal reinforcing anchor pole, and be connected with enclosure wall;
3), before annular shield structure or annular push pipe start, judge whether there is reinforcing bar in the concrete cover between two-layer portal sealing steel ring, if so, then return step 1), again apply portal sealing steel ring, if not, then perform step 4);
4), when annular shield structure or annular push pipe start, annular shield machine or annular push-bench are advanced into cutterhead and contact with portal enclosure wall, and the concrete in annular region abolished by cutterhead, complete operation of starting;
5) annular shield machine or annular push-bench driving are to received well, and enclosure wall abolished by cutterhead, forms once lining;
6) after tunnel holing through, cut the enclosure wall of portal sealing steel ring outside, precipitation is carried out to the soil body in tunnel, pull out horizontal reinforcing anchor pole, the excavation residue soil body.
Described horizontal reinforcing anchor pole arranges multiple, and multiple horizontal reinforcing anchor pole be arranged in parallel.
The method also comprises:
For short distance underground passage driving, the horizontal reinforcing anchor pole in starting well and received well can being carried out to drawing connection, improving anchor pole to the binding effect of portal.
Only in starting well, can apply horizontal reinforcing anchor pole within the scope of portal sealing steel ring, received well portal adopts conventional method to reinforce.
Compared with prior art, the present invention has following beneficial effect:
(1) the present invention utilizes this reinforcing mode of anchor pole to substitute the portal reinforcement means of traditional slip casting or fender post formula, waterproof and soil mass consolidation effect can be played, the connectivity of the soil body and portal space enclosing structure can be increased again, portal space enclosing structure is avoided to cause entirety to topple owing to lacking constraint, be easy to pull out simultaneously, solve the new problem that annular shield structure or this new construction technology of annular push pipe are brought.
(2) this method is simple to operation, cheap, and anchor pole can be reused, and has higher economy and promotional value.
Accompanying drawing explanation
Fig. 1 is portal reinforcement means generalized section
Fig. 2 is that annular shield structure or annular push-bench start pushing tow to schematic diagram during space enclosing structure;
Fig. 3 be annular shield structure or annular push-bench abolish portal start advance schematic diagram;
Fig. 4 is that annular shield structure or annular push-bench arrive pushing tow to schematic diagram during received well enclosed structure;
Fig. 5 is that portal arrival received well schematic diagram abolished by annular shield structure or annular push-bench;
Fig. 6 progressively cuts portal after tunnel holing through, carries out precipitation and pull out anchor pole schematic diagram to the inner soil body.
In figure: 1-cutterhead, 2-housing, the lining cutting of 3-annular, 4-injected hole, the pre-tunneling of 5-, 6-horizontal reinforcing anchor pole, 7-enclosure wall, 8-portal sealing steel ring, 9-starts or receives bracket, 10-active well base plate, 11-received well base plate.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.The present embodiment is implemented premised on technical solution of the present invention, give detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Be the concrete schematic diagram of the portal reinforcement means that the present invention's annular shield structure or annular push pipe start and arrive as shown in figs 1 to 6, in Fig. 1, apply portal sealing steel ring 8 along portal position, within the scope of the steel ring of inner side, apply horizontal reinforcing anchor pole 6; In Fig. 2, when annular shield structure or annular push pipe start, annular shield structure or annular push pipe are advanced into cutterhead 1 and contact with portal enclosure wall 7; In Fig. 3, the concrete in annular section abolished by cutterhead 1, and annular shield structure or annular push pipe complete propelling of starting; In Fig. 4, annular shield structure or annular push pipe complete tunnel piercing, arrive received well enclosure wall 7; In Fig. 5, the concrete in annular section abolished by cutterhead 1, and annular shield structure or annular push pipe arrive received well; In Fig. 6, after tunnel holing through, progressively cut the outside portal enclosure wall 7 of sealing steel ring 8, precipitation is carried out to the tunnel internal soil body, pulls out anchor pole 6, the excavation residue soil body.
The annular shield structure that the present embodiment provides or annular push pipe start and the portal reinforcement means that arrives specifically comprises the following steps:
1) adopt conventional method to apply starting well (active well), received well and corresponding enclosure wall 7 structure, when enclosure wall 7 is constructed, apply portal sealing steel ring 8 along portal position;
2) portal sealing steel ring 8 is provided with two-layer, and its setting position corresponds to the inside and outside both sides of annular shield machine or annular push pipe engine housing 2;
3), after enclosure wall 7 construction terminates, inside portal sealing steel ring 8, apply horizontal reinforcing anchor pole 6 within the scope of steel ring, multiple horizontal reinforcing anchor pole 6 be arranged in parallel, and forms reliable connection with enclosure wall 7, as shown in Figure 1;
Horizontal reinforcing anchor pole can apply within the scope of the inner side portal sealing steel ring of starting well and received well simultaneously, and is carried out being connected to drawing with the horizontal reinforcing anchor pole in received well by starting well, improves anchor pole to the binding effect of portal; Also can according to the feature of concrete engineering, only in starting well, arrange horizontal reinforcing anchor pole, the portal in received well can adopt existing portal reinforcement means to reinforce.
4) install respectively in starting well and received well and start or receive bracket 9, lifting annular shield machine or annular push-bench;
5), before annular shield structure or annular push pipe start, detect in the concrete cover between portal sealing steel ring 8 whether there is reinforcing bar, if so, then return step 1), again apply portal sealing steel ring 8, if not, then perform step 6);
6), when annular shield structure or annular push pipe start, annular shield structure or annular push pipe are advanced into cutterhead 1 and contact with portal enclosure wall 7, as shown in Figure 2;
7) concrete in annular section abolished by cutterhead 1, and annular shield structure or annular push pipe complete propelling of starting, as shown in Figure 3;
8), when annular shield structure or annular push pipe driving, thixotropic slurry injects the gap between annular lining cutting 3 and the soil body from the injected hole 4 of rear annular lining cutting 3 surfaces externally and internally;
9) annular shield structure or annular push pipe driving are to received well enclosure wall 7, as shown in Figure 4;
10) concrete in annular section abolished by cutterhead 1, and annular shield structure or annular push pipe arrive received well, as shown in Figure 5;
11) after tunnel holing through, progressively cut the portal enclosure wall 7 of sealing steel ring 8 outside, precipitation is carried out to the tunnel internal soil body, pull out horizontal reinforcing anchor pole 6, the excavation residue soil body, as shown in Figure 6.

Claims (5)

1. annular shield structure or the annular push pipe portal reinforcement means that starts and arrive, is characterized in that, comprise the following steps:
1) on starting well, received well portal enclosure wall, apply portal sealing steel ring, this portal sealing steel ring is provided with two-layer, and its setting position corresponds to the inside and outside both sides of annular shield machine or annular push pipe engine housing;
2) within the scope of the portal sealing steel ring of inner side, apply horizontal reinforcing anchor pole, and be connected with enclosure wall;
3), before annular shield structure or annular push pipe start, judge whether there is reinforcing bar in the concrete cover between two-layer portal sealing steel ring, if so, then return step 1), again apply portal sealing steel ring, if not, then perform step 4);
4), when annular shield structure or annular push pipe start, annular shield machine or annular push-bench are advanced into cutterhead and contact with portal enclosure wall, and the concrete in annular region abolished by cutterhead, complete operation of starting;
5) annular shield machine or annular push-bench driving are to received well, and enclosure wall abolished by cutterhead, forms once lining;
6) after tunnel holing through, cut the enclosure wall of portal sealing steel ring outside, precipitation is carried out to the soil body in tunnel, pull out horizontal reinforcing anchor pole, the excavation residue soil body.
2. annular shield structure according to claim 1 or the annular push pipe portal reinforcement means that starts and arrive, it is characterized in that, described horizontal reinforcing anchor pole arranges multiple, and multiple horizontal reinforcing anchor pole be arranged in parallel.
3. annular shield structure according to claim 1 or the annular push pipe portal reinforcement means that starts and arrive, is characterized in that, apply horizontal reinforcing anchor pole within the scope of the inner side portal sealing steel ring of starting well and received well simultaneously.
4. annular shield structure according to claim 3 or the annular push pipe portal reinforcement means that starts and arrive, is characterized in that, also comprise:
For short distance underground passage driving, the horizontal reinforcing anchor pole in starting well and received well is carried out drawing connection.
5. annular shield structure according to claim 1 or the annular push pipe portal reinforcement means that starts and arrive, is characterized in that, only within the scope of the inner side portal sealing steel ring of starting well, applies horizontal reinforcing anchor pole, and received well portal adopts conventional method to reinforce.
CN201510006724.1A 2015-01-07 2015-01-07 Tunnel gate strengthening method for starting and arriving of annular shield or annular pushing pipe CN104612722B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510006724.1A CN104612722B (en) 2015-01-07 2015-01-07 Tunnel gate strengthening method for starting and arriving of annular shield or annular pushing pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510006724.1A CN104612722B (en) 2015-01-07 2015-01-07 Tunnel gate strengthening method for starting and arriving of annular shield or annular pushing pipe

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CN104612722B CN104612722B (en) 2017-01-25

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105863673A (en) * 2016-05-24 2016-08-17 长江勘测规划设计研究有限责任公司 Returnable pipe-jacking construction method for pushing machine body and construction structure
CN108729469A (en) * 2017-04-14 2018-11-02 植村技研工业株式会社 The construction method of underground structure

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009046959A (en) * 2007-08-16 2009-03-05 Hiroaki Fujii Construction method for underground pipe line
EP1862637B1 (en) * 2006-05-30 2009-07-15 DYWIDAG Bau GmbH Device and method for a shield driving start-up and extension
CN101608551A (en) * 2009-06-15 2009-12-23 广东华隧建设股份有限公司 The job practices of a kind of shield machine closed origin and arrival
CN102022118A (en) * 2010-12-15 2011-04-20 广东华隧建设股份有限公司 Method for realizing balanced arrival of shield machine
CN102425423A (en) * 2011-12-31 2012-04-25 上海市机械施工有限公司 Constructing method for shield entering into hole while passing through pipeline
CN103790592A (en) * 2014-01-27 2014-05-14 中铁二十二局集团第一工程有限公司 End soil mass reinforcement system and method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1862637B1 (en) * 2006-05-30 2009-07-15 DYWIDAG Bau GmbH Device and method for a shield driving start-up and extension
JP2009046959A (en) * 2007-08-16 2009-03-05 Hiroaki Fujii Construction method for underground pipe line
CN101608551A (en) * 2009-06-15 2009-12-23 广东华隧建设股份有限公司 The job practices of a kind of shield machine closed origin and arrival
CN102022118A (en) * 2010-12-15 2011-04-20 广东华隧建设股份有限公司 Method for realizing balanced arrival of shield machine
CN102425423A (en) * 2011-12-31 2012-04-25 上海市机械施工有限公司 Constructing method for shield entering into hole while passing through pipeline
CN103790592A (en) * 2014-01-27 2014-05-14 中铁二十二局集团第一工程有限公司 End soil mass reinforcement system and method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105863673A (en) * 2016-05-24 2016-08-17 长江勘测规划设计研究有限责任公司 Returnable pipe-jacking construction method for pushing machine body and construction structure
CN108729469A (en) * 2017-04-14 2018-11-02 植村技研工业株式会社 The construction method of underground structure
CN108729469B (en) * 2017-04-14 2020-10-20 植村技研工业株式会社 Construction method of underground structure

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