CN103711504B - The propulsion method of shield tunnel section and mining tunnel section binding site in subway tunnel - Google Patents
The propulsion method of shield tunnel section and mining tunnel section binding site in subway tunnel Download PDFInfo
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- CN103711504B CN103711504B CN201310699942.9A CN201310699942A CN103711504B CN 103711504 B CN103711504 B CN 103711504B CN 201310699942 A CN201310699942 A CN 201310699942A CN 103711504 B CN103711504 B CN 103711504B
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Abstract
A propulsion method for shield tunnel section and mining tunnel section binding site in subway tunnel, the steps include: A, level squeezes into steel bushing in its front of tunnel heading country rock after mining tunnel section of having constructed, then perform gunite to face; B, be close to the glass fiber-reinforced polymer that gunite colligation separates termination wall, and glass fiber-reinforced polymer is connected with reinforcing bar binding with ring beam thereafter, ring beam reinforcing bar is welded to connect with the preliminary bracing reserved steel bar head of mining tunnel section again; Build again and separate termination wall and ring beam; C, bottom mining tunnel section concreting arc guide table; When D, shield machine are close to mining tunnel section, reduce fltting speed, be accommodated among steel bushing; Then, shield machine directly to the gunite of the country rock in steel bushing, face with separate termination wall and carry out cutting and abolish, and carries out slip casting, scarfing cinder, until shield machine is received in by ring beam in arc concrete guide table.The construction risk of the method is low, and construction is simple, efficiency is high, cost is low.
Description
Technical field
The present invention relates to the propulsion method of shield tunnel section and mining tunnel section binding site in a kind of subway tunnel.
Background technology
Build subway tunnel at present when encountering long-distance hard rock stratum, the shortcomings such as the slow and tool wear of fltting speed is fast that adopt shield driving to exist.Therefore, the normal Mining Method that first adopts carries out hard rock tunnel excavation formation mining tunnel section, then when shield machine is advanced into shield tunnel section and mining tunnel section binding site, first abolishes and separate termination wall and make shield machine enter mining tunnel section, realize the through of shield tunnel section and mining tunnel section.
Because mining tunnel section will complete prior to shield tunnel section longer a period of time, therefore, the face of mining tunnel section for a long time exposure can make its stability be deteriorated gradually, only by performing the stability that simple gunite is not enough to ensure that face is long-term to face, after shield machine arrives and when being advanced into front of tunnel heading, the powerful thrust of shield machine makes face be very easy to total collapse occurs, and causes the soil instability near face.Unstability post-processing difficulty is large, increases and builds cost and construction risk.
In order to ensure the resistance to overturning of face, traditional way be to perform with the binding site of mining tunnel section in shield tunnel section together with concrete-steel termination wall, first manually abolishes this termination wall before shield machine arrives, then shield driving passes through binding site.This method has higher risk in construction, especially at artificial chisel except the process risk of termination wall reaches maximum: termination wall construction props up shelves and its soil body behind, once abolish this termination wall, the soil body will expose, mechanical balance state between stratum and a mark structure is broken, and the soil body easily occurs simultaneously under the thrust that shield machine is powerful and caves in, cause subsidence, even personnel casualty accidents occurring, is the important risk factors of in shield-tunneling construction one.
Because shield machine is by after binding site, shield machine fuselage will dock with mining tunnel section and enters in the arc guide table in mining tunnel, now between shield driving route and Tunnel Design axis, allowable variation error rate is low, the control overflow of existing construction method to shield driving deviation is high, difficulty is large, need repeatedly to adjust, have that constructional difficulties, time-consuming length, efficiency are low, high in cost of production shortcoming.
Summary of the invention
The object of this invention is to provide the propulsion method of shield tunnel section and mining tunnel section binding site in a kind of subway tunnel, construct by the method, the soil body not easily unstability of shield tunnel section and mining tunnel section binding site, construction risk is low, and construction is simple, efficiency is high, cost is low.
It is that in a kind of subway tunnel, the propulsion method of shield tunnel section and mining tunnel section binding site, the steps include: that the present invention realizes the technical scheme that its goal of the invention adopts
In subway tunnel, a propulsion method for shield tunnel section and mining tunnel section binding site, the steps include:
A, first to construct complete mining tunnel section, then in mining tunnel section front of tunnel heading country rock, level squeezes into circular steel bushing, and the rear end face of steel bushing flushes with face, then performs gunite to face;
B, be close to the glass fiber-reinforced polymer that gunite colligation separates termination wall, and glass fiber-reinforced polymer is connected with reinforcing bar binding with the ring beam after it, the steel bar end that ring beam reinforcing bar is reserved with the preliminary bracing of mining tunnel section is again welded to connect; Build again and separate termination wall and ring beam;
C, bottom mining tunnel section concreting arc guide table;
When the shield machine of D, shield tunnel section is close to mining tunnel section, reduces fltting speed, be accommodated among steel bushing; Then, shield machine keeps low-speed propulsion, the direct gunite to the country rock in steel bushing, face and separation termination wall carry out cutting and abolish, and carry out slip casting, scarfing cinder, until shield machine is all received in by ring beam in the arc concrete guide table of mining tunnel section simultaneously.
Compared with prior art, the beneficial effect of tool of the present invention is:
One, the glass fiber-reinforced polymer adopted in the present invention replaces traditional reinforcing bar to build and separates termination wall, glass fiber-reinforced polymer has on the one hand the features such as, modulus of elasticity little, ductility lower, easy brittle failure little with concrete binding strength, easy fracture under the effect of cutting of shield cutter, thus shield machine can be adopted directly to carry out cutting propelling to termination wall and remove termination wall without the need to artificial chisel, reduce artificial chisel except the construction risk in the wall process of termination, accelerate construction speed simultaneously, reduce construction cost; On the other hand, the feature such as glass fiber-reinforced polymer has again that tensile strength is high, supporting capacity is large, impact resistance is good, and glass fiber-reinforced polymer is by the reinforcing bar of ring beam and the bar connecting of mining tunnel section, thus separate the resistance to overturning that termination wall can ensure face before being cut, the part simultaneously stayed after being cut also has higher tensile strength, self stability is good, and also can ensure surrounding soil not unstability, its construction risk is little.
Two, the binding site shield machine of two tunnel construction sections advances in steel bushing and ring beam, by the location of steel bushing and ring beam, can ensure that shield machine is when cutting binding site country rock smoothly and separating termination wall, can be advanced in the arc guide table in mining tunnel accurately, avoid the deviation in shield driving direction, reduce difficulty of construction, also improve the drivage efficiency in tunnel, reduce construction cost.
Three, the steel bushing that the binding site of two tunnel construction sections is squeezed into can provide larger support action to the country rock of surrounding, decrease the disturbance to country rock when shield machine tunnels, and without the need to carrying out grouting and reinforcing to this position country rock, decrease construction sequence, improve efficiency of construction.
As the further improvement of technique scheme, in above-mentioned separation termination wall body of wall, glass fiber-reinforced polymer district diameter is greater than the external diameter of steel bushing.
Like this, the remainder separated after the wall cutting of termination remains with enough glass fiber-reinforced polymer be connected with ring beam reinforcing bar and mining tunnel section supporting reinforcing bar, and ensure the separation termination wall not unstability after cutting further, construction risk is little.
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is the schematic longitudinal section of subway tunnel when shield machine is just accommodated among steel bushing in the embodiment of the present invention.
Fig. 2 is A-A schematic cross-sectional view in Fig. 1.
Fig. 3 is the enlarged drawing at B place in Fig. 1.
Detailed description of the invention
Fig. 1-3 illustrates, one embodiment of the present invention are, in a kind of subway tunnel, the propulsion method of shield tunnel section and mining tunnel section binding site, the steps include:
In subway tunnel, a propulsion method for shield tunnel section and mining tunnel section binding site, the steps include:
A, first to construct complete mining tunnel section 21, then in the country rock of mining tunnel section 21 face 21a front, level squeezes into circular steel bushing 31, and the rear end face of steel bushing 31 flushes with face 21a, then performs gunite to face 21a;
B, be close to the glass fiber-reinforced polymer 34 that gunite colligation separates termination wall, and glass fiber-reinforced polymer 34 is connected with reinforcing bar 35 colligation of the ring beam after it, the steel bar end 36 that ring beam reinforcing bar 35 is reserved with the preliminary bracing 22 of mining tunnel section 21 is again welded to connect; Build again and separate termination wall 32 and ring beam 33;
C, bottom mining tunnel section 21 concreting arc guide table 23;
When the shield machine 12 of D, shield tunnel section 11 is close to mining tunnel section 21, reduces fltting speed, be accommodated among steel bushing 31; Then, shield machine 12 keeps low-speed propulsion, the direct gunite to the country rock in steel bushing 31, face and separation termination wall 32 carry out cutting and abolish, carry out slip casting, scarfing cinder, until shield machine 12 is all received in the arc concrete guide table 23 of mining tunnel section 21 by ring beam 33 simultaneously.
In separation termination wall 32 body of wall of this example, glass fiber-reinforced polymer district diameter is greater than the external diameter of steel bushing.
Claims (2)
1. the propulsion method of shield tunnel section and mining tunnel section binding site in subway tunnel, the steps include:
A, first to construct complete mining tunnel section (21), then in the country rock of mining tunnel section (21) face (21a) front, level squeezes into circular steel bushing (31), the rear end face of steel bushing (31) flushes with face (21a), then performs gunite to face (21a);
B, be close to the glass fiber-reinforced polymer (34) that gunite colligation separates termination wall, and glass fiber-reinforced polymer (34) is connected with reinforcing bar (35) colligation of the ring beam after it, the steel bar end (36) that ring beam reinforcing bar (35) is reserved with the preliminary bracing (22) of mining tunnel section (21) is again welded to connect; Build again and separate termination wall (32) and ring beam (33);
C, mining tunnel section (21) bottom concreting arc guide table (23);
When the shield machine (12) of D, shield tunnel section (11) is close to mining tunnel section (21), reduces fltting speed, be accommodated among steel bushing (31); Then, shield machine (12) keeps low-speed propulsion, the direct gunite to the country rock in steel bushing (31), face and separation termination wall (32) are carried out cutting and are abolished, carry out slip casting, scarfing cinder, until shield machine (12) is all received in the arc concrete guide table (23) of mining tunnel section (21) by ring beam (33) simultaneously.
2. the propulsion method of shield tunnel section and mining tunnel section binding site in subway tunnel according to claim 1, is characterized in that: in described separation termination wall (32) body of wall, the diameter in glass fiber-reinforced polymer (34) region is greater than the external diameter of steel bushing (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310699942.9A CN103711504B (en) | 2013-12-18 | 2013-12-18 | The propulsion method of shield tunnel section and mining tunnel section binding site in subway tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310699942.9A CN103711504B (en) | 2013-12-18 | 2013-12-18 | The propulsion method of shield tunnel section and mining tunnel section binding site in subway tunnel |
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| Publication Number | Publication Date |
|---|---|
| CN103711504A CN103711504A (en) | 2014-04-09 |
| CN103711504B true CN103711504B (en) | 2016-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310699942.9A Expired - Fee Related CN103711504B (en) | 2013-12-18 | 2013-12-18 | The propulsion method of shield tunnel section and mining tunnel section binding site in subway tunnel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE1029262B1 (en) * | 2022-06-24 | 2023-07-25 | China 19Th Metallurgical Group Co Ltd | Construction method of tunnel passage section by shield method and mine method |
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| CN105863651B (en) * | 2016-05-30 | 2018-06-22 | 中铁工程装备集团有限公司 | The method for tunnel construction that a kind of shield is combined with New Austrian Tunneling Method |
| CN106285691B (en) * | 2016-08-05 | 2018-08-03 | 中铁工程装备集团有限公司 | A kind of method for tunnel construction that shield formula multi-arm development machine is combined with New Austrian Tunneling Method |
| CN106907164A (en) * | 2017-03-27 | 2017-06-30 | 中铁隧道勘测设计院有限公司 | A kind of water-bed combination of mine shield tunnel docking structure form and its construction method |
| CN107091101B (en) * | 2017-03-27 | 2023-09-01 | 中铁第六勘察设计院集团有限公司 | Superimposed joint structure of middle mine shield junction tunnel in sea area and construction method |
| CN109026043B (en) * | 2018-09-18 | 2023-11-10 | 中铁第六勘察设计院集团有限公司 | Dynamic self-joint laying type and method for long-distance underwater tunnel mine shield |
| CN109505612A (en) * | 2018-12-21 | 2019-03-22 | 中铁二十五局集团第五工程有限公司 | Big descending bored tunnel shield sky selection structure and construction technology |
| CN110080296B (en) * | 2019-04-29 | 2021-02-02 | 中铁四局集团有限公司 | A unilateral glass muscle-steel reinforcement cage structure for shield tunnel portal ground is wall even |
| CN110159291B (en) * | 2019-05-06 | 2021-01-22 | 广州电力设计院有限公司 | Tunnel construction method and tunnel structure |
| CN110792457A (en) * | 2019-10-12 | 2020-02-14 | 成都建工路桥建设有限公司 | Tunnel portal structure installation method for shield tunneling through mine tunnel |
| CN110905527B (en) * | 2019-12-11 | 2021-09-03 | 中铁二十局集团第四工程有限公司 | Construction method of tunnel with upper soft and lower hard strata |
| CN112901176B (en) * | 2020-12-24 | 2023-01-31 | 南昌轨道交通集团有限公司 | Shield tunneling machine passing method capable of reducing disturbance |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101403307A (en) * | 2008-08-04 | 2009-04-08 | 中铁十一局集团城市轨道工程有限公司 | Construction method of composite soil pressure balance tunnel shielding machine for traversing shallow-buried water-rich sand layer |
| CN102400694A (en) * | 2011-10-28 | 2012-04-04 | 上海市第一市政工程有限公司 | Reinforcement method for combined part of shield tunnel and mining-method tunnel |
| CN103206228A (en) * | 2013-03-28 | 2013-07-17 | 西南交通大学 | Flexible segment for shield tunnel |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1072995A (en) * | 1996-08-30 | 1998-03-17 | Taisei Corp | Construction method for branch tunnel and structure of main track tunnel branch part |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101403307A (en) * | 2008-08-04 | 2009-04-08 | 中铁十一局集团城市轨道工程有限公司 | Construction method of composite soil pressure balance tunnel shielding machine for traversing shallow-buried water-rich sand layer |
| CN102400694A (en) * | 2011-10-28 | 2012-04-04 | 上海市第一市政工程有限公司 | Reinforcement method for combined part of shield tunnel and mining-method tunnel |
| CN103206228A (en) * | 2013-03-28 | 2013-07-17 | 西南交通大学 | Flexible segment for shield tunnel |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE1029262B1 (en) * | 2022-06-24 | 2023-07-25 | China 19Th Metallurgical Group Co Ltd | Construction method of tunnel passage section by shield method and mine method |
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| CN103711504A (en) | 2014-04-09 |
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Granted publication date: 20160203 Termination date: 20181218 |