CN102022118A - Method for realizing balanced arrival of shield machine - Google Patents
Method for realizing balanced arrival of shield machine Download PDFInfo
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- CN102022118A CN102022118A CN 201010589434 CN201010589434A CN102022118A CN 102022118 A CN102022118 A CN 102022118A CN 201010589434 CN201010589434 CN 201010589434 CN 201010589434 A CN201010589434 A CN 201010589434A CN 102022118 A CN102022118 A CN 102022118A
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- shield machine
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Abstract
The invention relates to a method for realizing balanced arrival of a shield machine. The method comprises the following steps: setting a shield arrival well with closed periphery at an arrival end; backfilling the closed shield arrival well before the arrival of the shield machine, wherein firstly backfilling sands into the shield arrival well till the sands position is above a shield cylinder body, further pouring plain concrete at the top part of the backfilled sand, and finally pouring water into a foundation pit; adopting glass fiber ribs to replace steel bars in the range of a tunnel portal of an enclosure structure of the shield arrival well; using the shield machine to directly cut the tunnel portal, and entering into the arrival well by excavation; carrying out reinforced slurry injection construction at the tunnel portal after the shield machine arrives at the hoisting position; and carrying out sealing and waterproof treatment on the tunnel portal, carrying out water pumping and sand cleaning on the foundation pit and then hoisting the shield machine out of the well. In the invention, the method of using the shield machine to directly cut the tunnel portal is utilized for arriving excavation, and the shield arrival well is backfilled before the arrival, thus the tunnel portal is not required to chip off, a water stopping device is not required to install, and the water and soil pressure balance inside and outside the arrival well can be further ensured.
Description
Technical field
The present invention relates to the method that shield machine arrives in a kind of tunneling shield construction.
Background technology
In tunneling shield engineering in the past, it generally is to adopt earlier the stratum, termination to be reinforced that the arrival of shield machine is appeared, and treats that shield machine enters to arrive to reinforce fully to carry out the method that portal cut, installed antipriming and carriage behind the body and construct.But carry out the termination when reinforcing in the mobile strong soft stratum of rich groundwater, water, the termination adds that solid is more open often, self-stability and impervious poor, thereby makes the termination reinforce inefficacy.Finally water burst gushes the sand accident and happens occasionally when portal cuts, and badly influences the safety of shield machine, tunnel and foundation ditch, and this becomes the difficult problem in the shield tunnel project construction always.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides the shield machine arrival method of a kind of efficient, safety, saving cost, avoided portal is cut existing risk.
The technical solution adopted for the present invention to solve the technical problems is:
The method that a kind of shield machine balance arrives may further comprise the steps:
(1), airtight shield structure arrives well around the arrival termination is provided with one;
(2), before shield machine arrives, airtight shield structure is arrived well carry out backfill, earlier backfill sand in the shield structure arrival well is built plain concrete at backfill sand top again to more than the shield structure cylindrical shell, to pouring water in the foundation ditch, make the outer groundwater table of interior water level of foundation ditch and foundation ditch flush at last;
(3), arriving well space enclosing structure portal scope at the shield structure adopts the glass fiber muscle to replace reinforcing bar;
(4), shield machine directly cuts portal, enter to arrive in the well;
(5), treat that shield machine arrives the lifting position after, strengthen mortar depositing construction at portal;
(6), portal carried out water-tight handle, to foundation ditch draw water, sand removal, shield machine lifts out well then.
As further improvement in the technical proposal, the described sand-pack height of step (2) is higher than more than shield structure cylindrical shell 1m ~ 2m, and plain concrete is that thickness is 0.3m ~ 0.5m.
As further improvement in the technical proposal, step (4) shield machine keeps otch hydraulic pressure to carry out portal cutting and driving.
As further improvement in the technical proposal, in the step (5), slip casting is to be undertaken by the injected hole on the ring of numbers section of jurisdiction of foundation pit enclosure structure, agent structure installation.
As further improvement in the technical proposal, drawing water in the step (6) carried out several times, carries out the check of leaking of a portal between per twice.
With respect to prior art, the invention has the beneficial effects as follows: the present invention is owing to adopted shield machine that the method that portal directly cuts is arrived driving, and before arriving backfill the shield structure arrive well, so need not to cut portal and antipriming be installed, and can guarantee to arrive the inside and outside water and soil pressure balance of well.
In addition, shield machine enters in the process that arrives well and keeps certain otch hydraulic pressure always, has avoided soil erosion, well controlling ground settlement.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing:
Fig. 1 backfill type shield structure balance arrives construction shield structure and arrives preceding schematic diagram.
Fig. 2 backfill type shield structure balance arrives construction shield structure and arrives the back schematic diagram.
The specific embodiment
With reference to figure 1 and Fig. 2, the method that a kind of shield machine balance arrives may further comprise the steps:
(1), airtight shield structure arrives well 1 around the arrival termination is provided with one;
(2), before shield machine arrives, airtight shield structure is arrived well 1 carry out backfill, earlier backfill sand in the shield structure arrival well is built plain concrete 6 at backfill sand 5 tops again to more than the shield structure cylindrical shell, to pouring water in the foundation ditch, make the outer groundwater table of interior water level 7 of foundation ditch and foundation ditch flush at last;
(3), arriving well 1 space enclosing structure portal scope at the shield structure adopts the glass fiber muscle to replace reinforcing bar;
(4), shield machine 4 directly cuts portal, enter to arrive in the well 1;
(5), treat that shield machine 4 arrives the lifting positions after, strengthen mortar depositing construction at portal;
(6), portal carried out water-tight handle, to foundation ditch draw water, sand removal, shield machine 4 lifts out well then.
The present invention since adopted shield machine to portal directly the method for cutting arrive driving, and before arriving backfill the shield structure arrive well 1, so need not to cut portal and antipriming is installed, and can guarantee to arrive water and soil pressure balance inside and outside the well.
As further improvement in the technical proposal, the described sand-pack height of step (2) is higher than shield structure cylindrical shell 1m ~ 2m, and plain concrete 6 is 0.3m ~ 0.5m for thickness.
As preferred implementation, for fear of soil erosion, controlling ground settlement, step (4) shield machine 4 keeps otch hydraulic pressure to carry out portal cutting and driving.
As preferred implementation, in the step (5), slip casting is to be undertaken by the injected hole on the ring of numbers section of jurisdiction of foundation pit enclosure structure 2, agent structure 3 installations.More preferably, two holes are bored in every section of jurisdiction on A, B, C piece in advance, and Grouting Pipe and non retern valve are installed, and add the hole for hoist of section of jurisdiction, and every endless tube sheet has 16 injected holes and carries out slip casting, has good and economic.
As preferred implementation, drawing water in the step (6) carried out several times, carries out the check of leaking of a portal between per twice, further reduces construction risk.
Claims (5)
1. the method that arrives of a shield machine balance may further comprise the steps:
(1), airtight shield structure arrives well around the arrival termination is provided with one;
(2), before shield machine arrives, airtight shield structure is arrived well carry out backfill, earlier backfill sand in the shield structure arrival well is built plain concrete at backfill sand top again to more than the shield structure cylindrical shell, to pouring water in the foundation ditch, make the outer groundwater table of interior water level of foundation ditch and foundation ditch flush at last;
(3), arriving well space enclosing structure portal scope at the shield structure adopts the glass fiber muscle to replace reinforcing bar;
(4), shield machine directly cuts portal, enter to arrive in the well;
(5), treat that shield machine arrives the lifting position after, strengthen mortar depositing construction at portal;
(6), portal carried out water-tight handle, to foundation ditch draw water, sand removal, shield machine lifts out well then.
2. the method that shield machine balance according to claim 1 arrives, it is characterized in that: the described sand-pack height of step (2) is higher than shield structure cylindrical shell 1m ~ 2m, and plain concrete is that thickness is 0.3m ~ 0.5m.
3. the method that shield machine balance according to claim 1 and 2 arrives is characterized in that: step (4) shield machine keeps otch hydraulic pressure to carry out portal cutting and driving.
4. the method that shield machine balance according to claim 1 and 2 arrives is characterized in that: in the step (5), slip casting is to be undertaken by the injected hole on the ring of numbers section of jurisdiction of foundation pit enclosure structure, agent structure installation.
5. the method that shield machine balance according to claim 1 and 2 arrives, it is characterized in that: drawing water in the step (6) carried out several times, carries out the check of leaking of a portal between per twice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010589434 CN102022118B (en) | 2010-12-15 | 2010-12-15 | Method for realizing balanced arrival of shield machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010589434 CN102022118B (en) | 2010-12-15 | 2010-12-15 | Method for realizing balanced arrival of shield machine |
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| Publication Number | Publication Date |
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| CN102022118A true CN102022118A (en) | 2011-04-20 |
| CN102022118B CN102022118B (en) | 2013-05-15 |
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| CN 201010589434 Active CN102022118B (en) | 2010-12-15 | 2010-12-15 | Method for realizing balanced arrival of shield machine |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518441A (en) * | 2011-12-14 | 2012-06-27 | 中铁十二局集团有限公司 | Method for constructing karren stratum shield tunnel |
| CN102767376A (en) * | 2012-05-28 | 2012-11-07 | 广东华隧建设股份有限公司 | Shield balanced launching and arriving construction method |
| CN103643961A (en) * | 2013-12-04 | 2014-03-19 | 中国水电顾问集团华东勘测设计研究院有限公司 | End-free reinforcing shield receiving structure and receiving method |
| CN104047607A (en) * | 2013-03-14 | 2014-09-17 | 上海市城市建设设计研究总院 | Construction method for lifting out shield tunneling machine under condition of envelop enclosure |
| CN104389619A (en) * | 2014-10-08 | 2015-03-04 | 海南大学 | Shield excess hole construction method |
| CN104612722A (en) * | 2015-01-07 | 2015-05-13 | 同济大学 | Tunnel gate strengthening method for starting and arriving of annular shield or annular pushing pipe |
| CN106988753A (en) * | 2017-05-08 | 2017-07-28 | 中建三局基础设施工程有限公司 | A kind of U-shaped plain concrete ground-connecting-wall adds steel bushing shield structure and its method of reseptance |
| CN111139817A (en) * | 2020-01-22 | 2020-05-12 | 中国建筑第四工程局有限公司 | Underground diaphragm wall construction method and structure convenient for subway shield to pass through |
| CN111734420A (en) * | 2020-06-16 | 2020-10-02 | 中建三局基础设施建设投资有限公司 | Water-rich stratum shield underwater receiving method provided with tunnel portal mortar retaining wall |
| CN113123796A (en) * | 2021-03-23 | 2021-07-16 | 广东华隧建设集团股份有限公司 | Construction method for shield machine to reach foundation pit in water in balanced manner |
Citations (4)
| 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 |
| CN101666231A (en) * | 2009-06-24 | 2010-03-10 | 中铁隧道股份有限公司 | Shield machine warehouse entry method |
-
2010
- 2010-12-15 CN CN 201010589434 patent/CN102022118B/en active Active
Patent Citations (4)
| 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 |
| CN101666231A (en) * | 2009-06-24 | 2010-03-10 | 中铁隧道股份有限公司 | Shield machine warehouse entry method |
Non-Patent Citations (3)
| Title |
|---|
| 《人民珠江》 20081230 陈广道 赤岗塔站-海心沙站盾构始发端头加固补强措施 第34-36页 , 第6期 * |
| 《广州建筑》 20101031 杜建林 广州地铁某联络通道在软弱地层中的施工措施 第22-25页 第38卷, 第5期 * |
| 《隧道建设》 20101031 周登武 盾构模拟江底掘进接收技术 第565-568页 第30卷, 第5期 * |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518441B (en) * | 2011-12-14 | 2014-10-08 | 中铁十二局集团有限公司 | Method for constructing karren stratum shield tunnel |
| CN102518441A (en) * | 2011-12-14 | 2012-06-27 | 中铁十二局集团有限公司 | Method for constructing karren stratum shield tunnel |
| CN102767376A (en) * | 2012-05-28 | 2012-11-07 | 广东华隧建设股份有限公司 | Shield balanced launching and arriving construction method |
| CN104047607B (en) * | 2013-03-14 | 2016-04-13 | 上海市城市建设设计研究总院 | Engineering method is hung out under shield machine space enclosing structure condition |
| CN104047607A (en) * | 2013-03-14 | 2014-09-17 | 上海市城市建设设计研究总院 | Construction method for lifting out shield tunneling machine under condition of envelop enclosure |
| CN103643961A (en) * | 2013-12-04 | 2014-03-19 | 中国水电顾问集团华东勘测设计研究院有限公司 | End-free reinforcing shield receiving structure and receiving method |
| CN104389619A (en) * | 2014-10-08 | 2015-03-04 | 海南大学 | Shield excess hole construction method |
| CN104612722A (en) * | 2015-01-07 | 2015-05-13 | 同济大学 | Tunnel gate strengthening method for starting and arriving of annular shield or annular pushing pipe |
| CN104612722B (en) * | 2015-01-07 | 2017-01-25 | 同济大学 | Tunnel gate strengthening method for starting and arriving of annular shield or annular pushing pipe |
| CN106988753A (en) * | 2017-05-08 | 2017-07-28 | 中建三局基础设施工程有限公司 | A kind of U-shaped plain concrete ground-connecting-wall adds steel bushing shield structure and its method of reseptance |
| CN111139817A (en) * | 2020-01-22 | 2020-05-12 | 中国建筑第四工程局有限公司 | Underground diaphragm wall construction method and structure convenient for subway shield to pass through |
| CN111734420A (en) * | 2020-06-16 | 2020-10-02 | 中建三局基础设施建设投资有限公司 | Water-rich stratum shield underwater receiving method provided with tunnel portal mortar retaining wall |
| CN111734420B (en) * | 2020-06-16 | 2021-11-12 | 中建三局基础设施建设投资有限公司 | Water-rich stratum shield underwater receiving method provided with tunnel portal mortar retaining wall |
| CN113123796A (en) * | 2021-03-23 | 2021-07-16 | 广东华隧建设集团股份有限公司 | Construction method for shield machine to reach foundation pit in water in balanced manner |
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| Publication number | Publication date |
|---|---|
| CN102022118B (en) | 2013-05-15 |
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Address after: 510220 Guangdong city of Guangzhou province Haizhuqu District Yue Xuan Street No. 81 (G-3) 1501-1512, 1604-1607 room Patentee after: Guangdong Hua Qiao construction group Limited by Share Ltd Address before: 510635 No. 559 Tianhe North Road, Guangdong, Guangzhou 1802-1805 Patentee before: China Tunnel Construction Co., Ltd. Guangdong |