CN102966358A - Construction method for shield-cut reinforced concrete pile under main line of operational railway - Google Patents
Construction method for shield-cut reinforced concrete pile under main line of operational railway Download PDFInfo
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- CN102966358A CN102966358A CN2012104510042A CN201210451004A CN102966358A CN 102966358 A CN102966358 A CN 102966358A CN 2012104510042 A CN2012104510042 A CN 2012104510042A CN 201210451004 A CN201210451004 A CN 201210451004A CN 102966358 A CN102966358 A CN 102966358A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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Abstract
The invention relates to a shield construction method, and particularly discloses a construction method for a shield-cut reinforced concrete pile under a main line of an operational railway. The construction method comprises the steps of preparation prior to construction, tool configuration prior to construction, setting of construction parameters prior to cutting and shield cutting/tunneling. By adopting the steps of preparation prior to construction and tool configuration prior to construction, in particular the step of setting of the construction parameters, shield cutting of the reinforced concrete pile under the main line of the operational railway can be realized successfully, no impact can be caused on the main line of the railway, the operational safety of the railway can be ensured, the effectiveness of shield construction can be ensured effectively, and the tool wear can be reduced.
Description
Technical field
The invention belongs to the Shield Construction Technique field, particularly the job practices of shield structure Cutting Steel rib concrete pile below a kind of railway in operation main track.
Background technology
Along with the encryption of city underground gauze and the increase of tunnel quantity, Underground Space Resource is reducing gradually, and the position in tunnel will be subject to being permitted multifactorial restriction.Each metropolis is underground " has a large capacity and a wide range " in labour and the distributions such as the pipeline of discarding, foundation pile, structure, consists of the underground obstacle of existing shield tunnel construction, increases the difficulty of construction.
In the shield-tunneling construction, the disposal technology commonly used that runs into obstruction mainly is to remove in advance or the tunnel line change by front at the shield structure abroad, but this job practices has increased difficulty of construction, is of limited application.If directly cutting, then the shield structure is when passing through underground obstacle, if thrust control is improper, formation " boulder " fractures before might pile foundation not grinding." boulder " easily rolls and is difficult to fragmentation, might cause shield machine to move on, and more serious will cause surface collapse, and serious accident occurs.
Therefore; develop a kind of shield construction method of direct Cutting Steel reinforced concrete obstruction; especially there is main object of protection in the earth's surface, such as the shield construction method of the direct Cutting Steel reinforced concrete obstruction of railway in operation main track, is the technical barrier that this area needs to be resolved hurrily.
Summary of the invention
Main purpose of the present invention is for above-mentioned problems of the prior art, and the job practices of a kind of railway in operation main track below shield structure cutting concrete pile is provided.
In order to realize the foregoing invention purpose, the technical solution used in the present invention is as follows:
The job practices of railway in operation main track below shield structure Cutting Steel rib concrete pile comprises the steps:
(1) prepare before the construction, comprising: 1. reinforced concrete pile is located; 2. railway main track settlement Control standard survey;
(2) cutter configuration before the construction
Shield structure periphery serrated knife is amounted to 9, be replaced by hobboing cutter by " tool changing with pressure " job practices;
(3) construction parameter is set before the cutting
Shield driving is tunneled to the reinforced concrete pile, carries out following construction parameter and sets:
I. support pressure is 2.0～2.2bar;
II. shield driving speed 2～3mm/min;
III. cutterhead rotating speed 0.5～0.8rpm;
IV. according to cutterhead rotating speed and fltting speed, gross thrust and moment of torsion are controlled automatically according to shield machine, described maximum thrust≤2500T;
V. default shield structure pressure-retaining system is the composite bentonite slurries of 35s to native storehouse pressure injection viscosity, guarantees that the support pressure fluctuation is positioned at ± 0.1bar;
VI. sediment improvement, adopting viscosity is the composite bentonite slurries of 35s, described sediment improvement addition is the composite bentonite slurries addition of shield structure pressurize;
VII. the every ring adding amount of shield tail grease is 80～100 ㎏;
VIII. the every ring of cutterhead seal grease addition is no less than 45 ㎏;
IX. synchronous grouting, every ring synchronous grouting amount is 7.1m
3, grouting pressure is 4.5bar;
X. secondary grouting, adopt the biliquid slurry, described biliquid slurry is comprised of cement, water glass and the water weight ratio by 1:0.06:0.8;
XI. excavation soil layer loss≤5 ‰, amount≤39.03m is unearthed
3
(4) shield structure cutting driving
Keep the described construction parameter of step (3), the shield structure carries out synchronous grouting along design route axis driving during the Cutting Steel rib concrete pile, carry out secondary grouting after crossing stake, and carry out at any time earth's surface monitoring, sedimentation is positioned at when the earth's surface ± during 2mm, stop secondary grouting, continue driving until finish cutting.
The job practices of railway in operation main track of the present invention below shield structure Cutting Steel rib concrete pile, comprise prepare before the construction, construction parameter is set and shield structure cutting driving step before the cutter configuration before the construction, cutting, particularly, reinforced concrete pile location and the railway main track settlement Control standard survey of (1) constructing first front, with detailed understanding pile body and construction environment situation, thereby determine construction parameter according to investigation.According to inventor's investigation, Chinese Railway main track settlement Control standard is: 1. rail track protuberance amount≤2mm per hour; Settling amount≤4mm per hour; 2. whenever add up round the clock protuberance amount≤4mm, whenever add up round the clock settling amount≤10mm; 3. the two top-of-rail level discrepancy in elevation≤2mm, the accumulative total protuberance amount≤10mm of final circuit in half a year, accumulative total sedimentation≤40mm.(2) configuration of the cutter before the construction amounts to shield structure periphery serrated knife to 9, is replaced by hobboing cutter by " tool changing with pressure " job practices.(3) shield driving when tunneling to the reinforced concrete pile, is carried out construction parameter and is set.The present invention is by default construction parameter success, and by the cooperation between each parameter, successfully realized the shield structure directly cutting and not the match line railway impact.(4) keep the described construction parameter of step (3), the shield structure tunnels along the design route axis, carry out synchronous grouting during the Cutting Steel rib concrete pile, carry out secondary grouting after crossing stake, and carry out at any time the earth's surface and monitor, sedimentation is positioned at when the earth's surface ± during 2mm, stop secondary grouting, continue driving until finish cutting.
As preferably, the job practices of aforementioned railway in operation main track below shield structure Cutting Steel rib concrete pile, the described synchronous slurries of the IX of step (3) are grouped into by following one-tenth:
Every side's unit weight 1810 ㎏ of described synchronous slurries, described fine sand modulus is 1.6～2.2, described synchronous slurry consistency is 120mm.
By the preferred synchronously composition of slurries, can effectively guarantee the synchronous grouting effect, thereby further guarantee the successful implementation of shield structure cutting.
As further preferred, the job practices of aforementioned railway in operation main track below shield structure Cutting Steel rib concrete pile, described synchronous slurries are formulated as follows: mix formula ratio sodium bentonite 30min processed, drop into again formula ratio fine sand, II level flyash and water and mix system, describedly always mix the time processed and be no less than 50min.
As preferably, the job practices of aforementioned railway in operation main track below shield structure Cutting Steel rib concrete pile, the described excavation soil layer of the XI of step (3) should be taked to owe to dig, and makes the shield structure otch top soil body that the protuberance that is not more than 0.5mm be arranged.
By taking to owe the excavation method, and guarantee that the shield structure otch top soil body has the protuberance that is not more than 0.5mm, can effectively offset the posterior settlement amount of the part soil body, guaranteed the successful implementation of cutting construction.
As preferably, the job practices of aforementioned railway in operation main track below shield structure Cutting Steel rib concrete pile in the described shield structure cutting of step (4) tunneling process, is taked under-voltage being unearthed.Particularly, can by the opening degree of the unearthed speed of control conveying worm and soil outlet, realize under-voltage being unearthed.
In the shield structure cutting tunneling process, by taking under-voltage being unearthed, can form the soil plug at soil outlet, play good sealing, pressurize and blowout prevention effect.When stopping driving or emergency occurs, then should close immediately conveying worm soil outlet gate.
In the shield structure cutting tunneling process, should observe at any time conveying worm soil outlet state of soil.Rare when finding to be unearthed, should stop shield driving, take out earth sample, analyze, adjust described composite bentonite slurries injection rate to the setup parameter scope.
In the shield structure cutting tunneling process, block if find the reinforcing bar that screw machine is blended, can select following three kinds of modes to process: a, rotating screw machine make its loosening Tu Cang that returns continue to stir that mixes after 5 minutes recovery with earth unearthed; B, utilize screw machine to drive telescopic system, front and back are slowly flexible, reduce the screw machine driving torque; If the c screw machine is stuck, first with the screw machine closing gate, open emergent peep hole on the screw machine by the professional, check, take again the specific aim measure to process.
Shield machine of the present invention adopts earth pressure balance weak soil shield machine.
Compared with prior art, the invention has the beneficial effects as follows:
(1) this area shield structure commonly used adopts serrated knife at positive and periphery, this type of cutter can play the effect that reduces tool wear in weak soil, but for the Cutting Steel rib concrete pile without advantage, the present invention is by the front cutter configuration of construction, can effective broken steel concrete, and do not destroy the configured in one piece theory of cutterhead weak soil driving, follow-up weak soil driving is protected.
(2) the present invention is by carrying out the selection of construction parameter and cooperatively interact before cutting, and keeps default construction parameter in driving, successfully realized the shield structure cutting construction of railway in operation main track below reinforced concrete pile.After construction was finished, the sedimentation-0.7 of main track accumulative total was to+2.3mm scope, and the match line railway does not impact, and has guaranteed its normal operation, and similar construction is had great dissemination.
The specific embodiment
Below in conjunction with the specific embodiment foregoing invention content of the present invention is described in further detail.
But this should be interpreted as that the scope of the above-mentioned theme of the present invention only limits to following embodiment.Not breaking away from the above-mentioned technological thought situation of the present invention, according to ordinary skill knowledge and customary means, make various replacements and change, all should comprise within the scope of the invention.
Embodiment 1 present embodiment is the job practices of the railway in operation main track below shield structure Cutting Steel rib concrete pile at station, interval shield structure city, Hangzhou Subway Line 1 Qiu Tao way station to station, station, city.
Pass through useless stake under the railway of station, interval shield structure city, Hangzhou Subway Line 1 Qiu Tao way station to station, station, city, stake comprises two types, and one is the discarded stake of city in 1999 station transformation, and one is that newly-increased stake is transformed at the station, city recently.The stake that the shield structure need pass through amounts to three rows, and first row, the second waste discharge stake are that city in 2009 station dilatation is left over, and useless stake stake footpath 1m adopts the C30 plain concrete to build in the shield structure scope, 2m under the long 20m(of the stake tunnel), the full section in tunnel passes through.The 3rd campshed is that city in 1999 station dilatation is left over, and is stake footpath 1m deposited reinforced concrete pile, stake long 20 meters (1.3m under the tunnel), and the C40 concrete, maximum main muscle is Φ 18,20 every.The sampling maximum intensity of loosing core 45Mpa.Left line 4.17m, right line 0.04m are invaded in useless stake.
3 campsheds are overhead waiting hall bottom, station, city walkway fender post, the existing overhead waiting hall bottom that all is in.The first campshed is positioned at below, railway the 11 station track, and the second campshed is positioned at below, stereotyped writing road, and the 3rd waste discharge is abandoned stake and is positioned at below, railway the 5th station track.Wherein the 5th, the stereotyped writing road is that hair line is arrived at the station, 11 station tracks are parking line.
Passing through stake zone, tunnel top buried depth 12.540-14.007m mainly passes through soil layer and is 3. 6 layers of sandy silt.Running tunnel is crossed the regional circuit of useless stake and is in the R=800m radius curve, the interval gradient 25 ‰.
Adopt following method, carry out the cutting of shield structure:
(1) prepare before the construction, comprising: 1. reinforced concrete pile is located; 2. railway main track settlement Control standard survey;
Reinforced concrete pile location situation such as aforementioned.Railway main track settlement Control standard survey such as aforementioned, i.e. 1. rail track protuberance amount≤2mm per hour; Settling amount≤4mm per hour; 2. whenever add up round the clock protuberance amount≤4mm, whenever add up round the clock settling amount≤10mm; 3. the two top-of-rail level discrepancy in elevation≤2mm, the accumulative total protuberance amount≤10mm of final circuit in half a year, accumulative total sedimentation≤40mm.
(2) cutter configuration before the construction
Shield structure periphery serrated knife is amounted to 9, be replaced by hobboing cutter by " tool changing with pressure " job practices;
(3) construction parameter is set before the cutting
Shield driving is tunneled to the reinforced concrete pile, carries out following construction parameter and sets:
I. support pressure is 2.0～2.2bar;
II. shield driving speed 2～3mm/min;
III. cutterhead rotating speed 0.5～0.8rpm;
IV. according to cutterhead rotating speed and fltting speed, gross thrust and moment of torsion are controlled automatically according to shield machine, described maximum thrust≤2500T;
V. default shield structure pressure-retaining system is the composite bentonite slurries of 35s to native storehouse pressure injection viscosity, guarantees that the support pressure fluctuation is positioned at ± 0.1bar;
VI. sediment improvement, adopting viscosity is the composite bentonite slurries of 35s, described sediment improvement addition is the composite bentonite slurries addition of shield structure pressurize;
VII. the every ring adding amount of shield tail grease is 80～100 ㎏;
VIII. the every ring of cutterhead seal grease addition is no less than 45 ㎏;
IX. synchronous grouting, every ring synchronous grouting amount is 7.1m
3, grouting pressure is 4.5bar;
Slurries are grouped into by following one-tenth synchronously: fine sand 900 ㎏/m
3, II level flyash 400 ㎏/m
3, sodium bentonite 40 ㎏/m
3, water 600 ㎏/m
3Synchronous every side's unit weight 1810 ㎏ of slurries, described fine sand modulus is 1.6～2.2, stating synchronous slurry consistency is 120mm.
Synchronously slurries are formulated as follows: mix formula ratio sodium bentonite 30min processed, drop into formula ratio fine sand, II level flyash and water again and mix system, describedly always mix time 70min processed.
X. secondary grouting, adopt the biliquid slurry, described biliquid slurry is comprised of cement, water glass and the water weight ratio by 1:0.06:0.8;
XI. excavation soil layer loss≤5 ‰, amount≤39.03m is unearthed
3Take to owe to dig, make the shield structure otch top soil body that the protuberance that is not more than 0.5mm be arranged;
(4) shield structure cutting driving
Keep the described construction parameter of step (3), the shield structure carries out synchronous grouting along design route axis driving during the Cutting Steel rib concrete pile, carry out secondary grouting after crossing stake, and carry out at any time earth's surface monitoring, sedimentation is positioned at when the earth's surface ± during 2mm, stop secondary grouting, continue driving until finish cutting; In the shield structure cutting tunneling process, take under-voltage being unearthed.
Construction effect: (1) in work progress, shield driving speed remains on 3mm/min substantially, has guaranteed the shield-tunneling construction work efficiency; (2) in passing through the process of reinforced concrete pile, the reinforcing bar cutting is very thorough, is one section of 10-30cm substantially; (3) be unearthed and machine operation normal, construction is not impacted; (4) after construction was finished, the good settlement Control of accumulative total-0.7 to+2.3mm had been guaranteed railway operation safety; (5) arrival is observed cutterhead after receiving, and cutterhead is intact, and tool wear is lighter.
Claims (5)
1. the job practices of railway in operation main track below shield structure Cutting Steel rib concrete pile is characterized in that, comprises the steps:
(1) prepare before the construction, comprising: 1. reinforced concrete pile is located; 2. railway main track settlement Control standard survey;
(2) cutter configuration before the construction
Shield structure periphery serrated knife is amounted to 9, be replaced by hobboing cutter by " tool changing with pressure " job practices;
(3) construction parameter is set before the cutting
Shield driving is tunneled to the reinforced concrete pile, carries out following construction parameter and sets:
I. support pressure is 2.0～2.2bar;
II. shield driving speed 2～3mm/min;
III. cutterhead rotating speed 0.5～0.8rpm;
IV. according to cutterhead rotating speed and fltting speed, gross thrust and moment of torsion are controlled automatically according to shield machine, described maximum thrust≤2500T;
V. default shield structure pressure-retaining system is the composite bentonite slurries of 35s to native storehouse pressure injection viscosity, guarantees that the support pressure fluctuation is positioned at ± 0.1bar;
VI. sediment improvement, adopting viscosity is the composite bentonite slurries of 35s, described sediment improvement addition is the composite bentonite slurries addition of shield structure pressurize;
VII. the every ring adding amount of shield tail grease is 80～100 ㎏;
VIII. the every ring of cutterhead seal grease addition is no less than 45 ㎏;
IX. synchronous grouting, every ring synchronous grouting amount is 7.1m
3, grouting pressure is 4.5bar;
X. secondary grouting, adopt the biliquid slurry, described biliquid slurry is comprised of cement, water glass and the water weight ratio by 1:0.06:0.8;
XI. excavation soil layer loss≤5 ‰, amount≤39.03m is unearthed
3
(4) shield structure cutting driving
Keep the described construction parameter of step (3), the shield structure carries out synchronous grouting along design route axis driving during the Cutting Steel rib concrete pile, carry out secondary grouting after crossing stake, and carry out at any time earth's surface monitoring, sedimentation is positioned at when the earth's surface ± during 2mm, stop secondary grouting, continue driving until finish cutting.
2. the job practices of railway in operation main track according to claim 1 below shield structure Cutting Steel rib concrete pile is characterized in that the described synchronous slurries of the IX of step (3) are grouped into by following one-tenth:
Every side's unit weight 1810 ㎏ of described synchronous slurries, described fine sand modulus is 1.6～2.2, described synchronous slurry consistency is 120mm.
3. the job practices of railway in operation main track according to claim 2 below shield structure Cutting Steel rib concrete pile, it is characterized in that, described synchronous slurries are formulated as follows: mix formula ratio sodium bentonite 30min processed, drop into again formula ratio fine sand, II level flyash and water and mix system, describedly always mix the time processed and be no less than 50min.
4. the job practices of shield structure Cutting Steel rib concrete pile below the railway in operation main track according to claim 1 is characterized in that the described excavation soil layer of the XI of step (3) should be taked to owe to dig, and makes the shield structure otch top soil body that the protuberance that is not more than 0.5mm be arranged.
5. the job practices of shield structure Cutting Steel rib concrete pile below the railway in operation main track according to claim 1 is characterized in that, in the described shield structure cutting of step (4) tunneling process, takes under-voltage being unearthed.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670429A (en) * | 2013-11-29 | 2014-03-26 | 北京交通大学 | Cutterhead and cutter reinforcing method for directly cutting reinforced concrete pile foundations by shield |
| CN103696778A (en) * | 2013-12-23 | 2014-04-02 | 北京交通大学 | Pile cutting cutter amount determination method capable of realizing equal abrasion |
| CN103899323A (en) * | 2014-05-06 | 2014-07-02 | 中铁二十五局集团轨道交通工程有限公司 | Construction method of shield passing through railway yard |
| CN104594912A (en) * | 2014-11-21 | 2015-05-06 | 北京城建设计发展集团股份有限公司 | Method for grinding and penetrating through pile groups through shield tunneling machine |
| CN104653186A (en) * | 2013-11-25 | 2015-05-27 | 天津城建隧道股份有限公司 | Method of earth pressure balance shield crossing reinforced concrete pile foundation building |
| CN105065011A (en) * | 2015-08-05 | 2015-11-18 | 上海隧道工程有限公司 | Construction method of soft soil shield tunneling cutting pile foundation |
| CN108915709A (en) * | 2018-05-29 | 2018-11-30 | 中铁隧道集团二处有限公司 | A kind of slurry shield of area near a river cuts the construction method of existing bridge single-pile foundation |
| CN112901176A (en) * | 2020-12-24 | 2021-06-04 | 南昌轨道交通集团有限公司 | Shield tunneling machine passing method capable of reducing disturbance |
| CN111156010B (en) * | 2020-01-10 | 2021-06-08 | 中铁隧道局集团有限公司 | Construction method for shield of expansion soil layer to penetrate through existing train station house |
| CN112983446A (en) * | 2021-04-22 | 2021-06-18 | 中铁一局集团第二工程有限公司 | Construction method for shield cutting of existing station reinforced concrete fender post |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004003126A (en) * | 2002-04-08 | 2004-01-08 | Hiromi Kuwahata | Excavation method for burying concrete pile and its device |
| JP2006009538A (en) * | 2004-06-23 | 2006-01-12 | Sanwa Kizai Co Ltd | Excavating bit and excavating head |
| CN102418531A (en) * | 2011-12-14 | 2012-04-18 | 中铁十二局集团有限公司 | Tunneling construction method for directly removing overpass group piles by using shield machine |
| CN102758635A (en) * | 2012-07-31 | 2012-10-31 | 中铁二局股份有限公司 | Construction method for tool changing under pressure in shield of water-rich silty soil and silty sand stratum under station tracks of railways |
-
2012
- 2012-11-12 CN CN201210451004.2A patent/CN102966358B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004003126A (en) * | 2002-04-08 | 2004-01-08 | Hiromi Kuwahata | Excavation method for burying concrete pile and its device |
| JP2006009538A (en) * | 2004-06-23 | 2006-01-12 | Sanwa Kizai Co Ltd | Excavating bit and excavating head |
| CN102418531A (en) * | 2011-12-14 | 2012-04-18 | 中铁十二局集团有限公司 | Tunneling construction method for directly removing overpass group piles by using shield machine |
| CN102758635A (en) * | 2012-07-31 | 2012-10-31 | 中铁二局股份有限公司 | Construction method for tool changing under pressure in shield of water-rich silty soil and silty sand stratum under station tracks of railways |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653186A (en) * | 2013-11-25 | 2015-05-27 | 天津城建隧道股份有限公司 | Method of earth pressure balance shield crossing reinforced concrete pile foundation building |
| CN103670429A (en) * | 2013-11-29 | 2014-03-26 | 北京交通大学 | Cutterhead and cutter reinforcing method for directly cutting reinforced concrete pile foundations by shield |
| CN103696778A (en) * | 2013-12-23 | 2014-04-02 | 北京交通大学 | Pile cutting cutter amount determination method capable of realizing equal abrasion |
| CN103696778B (en) * | 2013-12-23 | 2015-07-08 | 北京交通大学 | Pile cutting cutter amount determination method capable of realizing equal abrasion |
| CN103899323A (en) * | 2014-05-06 | 2014-07-02 | 中铁二十五局集团轨道交通工程有限公司 | Construction method of shield passing through railway yard |
| CN103899323B (en) * | 2014-05-06 | 2016-01-27 | 中铁二十五局集团轨道交通工程有限公司 | A kind of construction method of shield crossing rail yard |
| CN104594912A (en) * | 2014-11-21 | 2015-05-06 | 北京城建设计发展集团股份有限公司 | Method for grinding and penetrating through pile groups through shield tunneling machine |
| CN105065011A (en) * | 2015-08-05 | 2015-11-18 | 上海隧道工程有限公司 | Construction method of soft soil shield tunneling cutting pile foundation |
| CN108915709A (en) * | 2018-05-29 | 2018-11-30 | 中铁隧道集团二处有限公司 | A kind of slurry shield of area near a river cuts the construction method of existing bridge single-pile foundation |
| CN111156010B (en) * | 2020-01-10 | 2021-06-08 | 中铁隧道局集团有限公司 | Construction method for shield of expansion soil layer to penetrate through existing train station house |
| CN112901176A (en) * | 2020-12-24 | 2021-06-04 | 南昌轨道交通集团有限公司 | Shield tunneling machine passing method capable of reducing disturbance |
| CN112983446A (en) * | 2021-04-22 | 2021-06-18 | 中铁一局集团第二工程有限公司 | Construction method for shield cutting of existing station reinforced concrete fender post |
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