CN102322027A - A kind of method that adopts the Mine Method expansion to dig shield tunnel construction subway station - Google Patents
A kind of method that adopts the Mine Method expansion to dig shield tunnel construction subway station Download PDFInfo
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- CN102322027A CN102322027A CN201110176665A CN201110176665A CN102322027A CN 102322027 A CN102322027 A CN 102322027A CN 201110176665 A CN201110176665 A CN 201110176665A CN 201110176665 A CN201110176665 A CN 201110176665A CN 102322027 A CN102322027 A CN 102322027A
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Abstract
The invention discloses a kind of method that adopts the Mine Method expansion to dig shield tunnel construction subway station, comprise step: (1) adopts shield machine to tunnel the station layer tunnel that passes through the station in advance; (2) end excavating shaft to a station platform layer tunnel absolute altitude AT STATION; (3) the pipe canopy is made in the vault construction along the tunnel, adopts bassoon canopy advance support cloth hole and slip casting; (4) sleeve valve pipe is made in the vault construction along the tunnel, and slip casting replenishes reinforcing; (5) adopting Mine Method to expand in the station layer tunnel digs; (6) remove and reclaim the section of jurisdiction; (7) reinforced concrete structure that comprises secondary lining, platform plate and tread air channel is made in construction.The present invention is adopting shield machine to participate in metro station construction; Excavate cavitation in advance; Adopt Mine Method to expand then to dig and build the underground station, both given full play to shield structure and mine worker's method advantage separately, avoid adopting the equipment that special large-diameter shield machine causes and the waste of underground space resource again.
Description
Technical field
The present invention relates to the underground structrue engineering technical field, particularly a kind of engineering method that adopts the Mine Method expansion to dig shield tunnel construction subway station.
Background technology
At present, existing domestic subway station mainly adopts cut and cover method and Mine Method to build, and abroad has and adopts special shield to make up the case of making subway station.Wherein:
Cut and cover method worker method needs large-area construction plant, often running into that expropriation of land is removed, the municipal pipeline greening move change, traffic is discongested and a series of bottleneck problems such as environment pollution, causes construction delay.The Mine Method construction sequence is many, excavation speed is slower, long in time limit, and security risk hidden danger is many, and the labor operation environment is abominable.
The special shield structure of external employing is built the subway station, often adopts the shield machine or the special-shaped shield machine of major diameter (greater than 6 meters), and its shortcoming is:
1) must special customization be worth the large-diameter shield machinery of more than one hundred million units;
2) special shield driving is apart from weak point, and machinery expenses is high.Economy driving (construction) length of shield method is greater than 1000m, and underground station length is removed shield launching and arrived well generally at 200～300m, can be for the about 100～200m of shield driving distance;
3) if build station and running tunnel simultaneously with large-diameter shield and since the running tunnel section much smaller than the station section, space waste is serious;
4) if adopt shield method only to build the station, shield machine needs split to start, and the driving work efficiency is low.
Summary of the invention
To the above defective of the prior art, the object of the present invention is to provide a kind of method that adopts the Mine Method expansion to dig shield tunnel construction subway station.
The technical scheme that the present invention adopted: a kind of method that adopts the Mine Method expansion to dig shield tunnel construction subway station may further comprise the steps:
(1) adopt shield machine to tunnel station layer tunnel through the station in advance;
(2) end excavating shaft to a station platform layer tunnel absolute altitude (promptly digging the degree of depth in tunnel) AT STATION;
(3) the pipe canopy is made in the vault construction along the tunnel, adopts bassoon canopy advance support cloth hole and slip casting;
(4) sleeve valve pipe is made in the vault construction along the tunnel, and slip casting replenishes reinforcing;
(5) adopting Mine Method to expand in the station layer tunnel digs;
(6) remove and reclaim the section of jurisdiction;
(7) reinforced concrete structure that comprises secondary lining, platform plate and tread air channel is made in construction.
Also be included in the section of jurisdiction interior construction between above-mentioned steps (4) and the step (5) and make the step of falsework system.
Pipe canopy in the above-mentioned steps (3) adopts diameter 0.108m, the hot rolled seamless steel tube of wall thickness 0.005m.Said pipe canopy is 150 ° of vault hoops along the tunnel, the excavation outline line put outward (said outer put be the people for amplifying, for example tunnel contour is the 6m diameter; Do when the pipe canopy is gone along with sb. to guard him and to accomplish 6.1m; 0.1m be exactly outer putting) the 0.3m layout, circumferential distance 0.45m, joint length are 70m.
Be provided with two row's sleeve valve pipes in the above-mentioned steps (4), the vault hoop is the blossom type layout for 150 ° along the tunnel.First row's sleeve valve pipe in the said two row sleeve valve pipes is put 1.3m and is arranged that circumferential distance 1.091m, joint length are 70m outside the excavation outline line; Second row's sleeve valve pipe is put the 2.5m layout outside the excavation outline line, circumferential distance 1.306m, joint length are 70m.
Mine Method in the above-mentioned steps (5) expands to dig and is divided into three steps and carries out explosion and expand and dig.
Shield tunnel external diameter in the above-mentioned steps (1) is 6～7 meters.
Beneficial effect of the present invention is following:
(1) helps the operation reasonable link, avoided the mutual interference mutually of interval shield-tunneling construction and station construction.The shield structure directly tunnels through the station, the aided process of having avoided the shield structure to disintegrate, miss the stop or reverse end for end, on the contrary the shield-tunneling construction of also avoiding is to the interference of station structure construction.
(2) help practicing thrift the duration.Practice thrift the interval shield method duration, the shield structure is directly interval through station construction, accelerates the progress of interval construction greatly; Practice thrift the station Mine Method duration, owing to the shield tunnel of constructing is in advance arranged as preliminary bracing, having reduced Mine Method, to expand the excavation step of digging continuous, thereby accelerate excavation speed greatly; After station and the interval operation saving stack, optimized the duration completely.
(3) help environmental protection.Owing to adopt shield structure driving in advance, behind advance support and the stratum consolidation, just Mine Method expands and digs, and is few to the disturbance of country rock, helps controlling stratum dehydration and surrouding rock deformation, the vault sedimentation in platform tunnel itself and restrain for a short time, and the face of land and ground construction of structures sedimentation are little.
(4) help reducing engineering cost.This method has been given full play to two kinds of worker's methods of shield structure and mine advantage separately, has reduced cost separately.Process optimization and duration practice thrift superimposed, have improved comprehensive production efficiency, reduce engineering cost.
Description of drawings
Fig. 1 is working procedure figure of the present invention;
Fig. 2 is the advance support bassoon canopy in platform according to the invention tunnel and the schematic cross-sectional view of the preparatory slip casting of sleeve valve pipe;
Fig. 3 is that the present invention removes shield duct piece, adopts Mine Method to expand and digs the sketch map of building the platform tunnel;
Fig. 4 is that the present invention removes shield duct piece, adopts Mine Method to expand the vertical section sketch map that digs order.
The specific embodiment
As shown in Figure 1, employing Mine Method according to the invention expands digs the method that shield tunnel is built the subway station, realizes through following steps:
The first step, employing shield machine tunnel the station layer tunnel 1 through the station in advance;
The shield machine of employing standard 6 mitron sheet external diameters driving needs strict driving axis through station platform layer tunnel during driving, guarantee deviation less than ± 50mm, and shield endnote slurry is wanted in time fully.
Second step, end excavating shaft 2 to a station platform layer tunnel absolute altitude AT STATION;
The 3rd step, the pipe canopy is made in vault hoop construction along the tunnel, adopts bassoon canopy advance support cloth hole and slip casting;
As shown in Figure 2, said pipe canopy 11 adopts diameter 0.108m, and the hot rolled seamless steel tube of wall thickness 0.005m, pipe canopy be 150 ° of vault hoops along the tunnel, and the excavation outline line is put 0.3m outward and arranged that circumferential distance 0.45m, joint length are 70m.Take two ends to construct lap length 5m to the mode that the centre sets for guaranteeing precision.Country rock through more than the bassoon canopy grouting and reinforcing vault plays the advance support effect, prevents that soil layer from caving in and surface subsidence.
The 4th step, sleeve valve pipe is made in vault hoop construction along the tunnel, and slip casting replenishes and reinforces;
As shown in Figure 2, the vault hoop is the blossom type layout for 150 ° along the tunnel to adopt two row's sleeve valve pipes in the present embodiment.Wherein, first row's sleeve valve pipe 12 is put 1.3m layout, circumferential distance 1.091m outward along excavating outline line.Second row's sleeve valve pipe 13 is put 2.5m layout, circumferential distance 1.306m outward along excavating outline line.Said sleeve valve pipe joint length is 70m, takes unidirectionally once to creep into.The ground crack between the bassoon canopy has further been filled in the slip casting of sleeve valve pipe, forms effective seal ring, reduces phreatic excessive bleed.
The 5th goes on foot, expands in station layer tunnel employing Mine Method and dig;
With the vertical shaft directly over the tunnel is the initial scope of operation, abolishes behind the shield duct piece in the vertical shaft to vertical shaft two side directions, divides two scope of operations to carry out the tunnel expansion simultaneously and digs, like Fig. 3, shown in 4.
Expand and dig the construction of station part employing benching tunnelling method, digging mode is a Blasting Excavation, and the tunnel divides three steps to carry out Blasting Excavation.At first in the scope of topping bar on shield duct piece and the rock stratum horizontal drilling, powder charge, firing order begin from the section of jurisdiction to around successively elementary errors extend, make full use of shield structure interval and reduce the influence of explosion stratum and above ground structure as free face.Carry out middle bench excavation after topping bar about excavation 6m to 9m; In bench excavation divide about two ones, carry out the right portions excavation again behind the left part excavation 6m.The section of jurisdiction connecting bolt is taked to remove earlier in section of jurisdiction in the middle step scope, and the big gun machine cooperates the excavator mode to remove then.Get out of a predicament or an embarrassing situation through excavator directly remove the residue section of jurisdiction after, the clear end of explosion, carried out in the inverted arch rock stratum.
Between above-mentioned the 4th step and the 5th step, can also be included in the step that the falsework system is made in the section of jurisdiction interior construction.
The 6th step, dismounting are also reclaimed the section of jurisdiction, and the dismounting of section of jurisdiction is served as reasons in proper order and gone up downwards, splits out the piece that binds (K) and two adjacent block (B, C) earlier, removes calibrated bolck (A1, A2, A3) at last.Can set up Mine Method in case of necessity supports temporarily;
The reinforced concrete structure that comprises secondary lining, platform plate and tread air channel is made in the 7th step, construction.
The present invention excavates cavitation adopting the interval 6 mitron sheet external diameter shield machines of standard subway (also can select the shield machine of other size according to situation on the spot) to participate in metro station construction in advance, adopts Mine Method to expand then to dig to build the underground station.Both give full play to shield structure and mine worker's method advantage separately, avoided adopting the equipment that special large-diameter shield machine causes and the waste of underground space resource again.
Claims (8)
1. one kind is adopted the Mine Method expansion to dig the method that shield tunnel is built the subway station, it is characterized in that, may further comprise the steps:
(1) adopt shield machine to tunnel station layer tunnel through the station in advance;
(2) end excavating shaft to a station platform layer tunnel absolute altitude AT STATION;
(3) the pipe canopy is made in the vault construction along the tunnel, adopts bassoon canopy advance support cloth hole and slip casting;
(4) sleeve valve pipe is made in the vault construction along the tunnel, and slip casting replenishes reinforcing;
(5) adopting Mine Method to expand in the station layer tunnel digs;
(6) remove and reclaim the section of jurisdiction;
(7) reinforced concrete structure that comprises secondary lining, platform plate and tread air channel is made in construction.
2. expand according to the said employing Mine Method of claim 1 and dig the method that shield tunnel is built the subway station, it is characterized in that, also be included in the step that the falsework system is made in the section of jurisdiction interior construction between said step (4) and the step (5).
3. expand according to the said employing Mine Method of claim 1 and dig the method that shield tunnel is built the subway station, it is characterized in that the pipe canopy in the said step (3) adopts diameter 0.108m, the hot rolled seamless steel tube of wall thickness 0.005m.
4. expand according to the said employing Mine Method of claim 3 and dig the method that shield tunnel is built the subway station, it is characterized in that, said pipe canopy is 150 ° of vault hoops along the tunnel, and the excavation outline line is put 0.3m outward and arranged that circumferential distance 0.45m, joint length are 70m.
5. expand according to the said employing Mine Method of claim 1 and dig the method that shield tunnel is built the subway station, it is characterized in that, be provided with two row's sleeve valve pipes in the said step (4), the vault hoop is the blossom type layout for 150 ° along the tunnel.
6. expand according to the said employing Mine Method of claim 5 and dig the method that shield tunnel is built the subway station, it is characterized in that, first row's sleeve valve pipe in said two row's sleeve valve pipes is put 1.3m and is arranged that circumferential distance 1.091m, joint length are 70m outside the excavation outline line; Second row's sleeve valve pipe is put the 2.5m layout outside the excavation outline line, circumferential distance 1.306m, joint length are 70m.
7. expand according to the said employing Mine Method of claim 1 and dig the method that shield tunnel is built the subway station, it is characterized in that, the Mine Method in the said step (5) expands to dig and is divided into three steps and carries out explosion and expand and dig.
8. expand according to the said employing Mine Method of claim 1 and dig the method that shield tunnel is built the subway station, it is characterized in that the shield tunnel external diameter in the said step (1) is 6～7 meters.
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| CN201110176665A CN102322027A (en) | 2011-06-28 | 2011-06-28 | A kind of method that adopts the Mine Method expansion to dig shield tunnel construction subway station |
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| CN201110176665A CN102322027A (en) | 2011-06-28 | 2011-06-28 | A kind of method that adopts the Mine Method expansion to dig shield tunnel construction subway station |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452561A (en) * | 2013-08-20 | 2013-12-18 | 中铁二局股份有限公司 | Vertical in-tunnel construction method of multilayer transverse channel of underground excavation station of metro, and construction method on east side and west side |
| CN103939105A (en) * | 2014-03-24 | 2014-07-23 | 中铁工程设计咨询集团有限公司 | Construction method and structure for laying construction shaft above underground engineering |
| CN104100280A (en) * | 2014-07-07 | 2014-10-15 | 中冶交通工程技术有限公司 | Primary double-wing outrigger support structure and tunnel construction method thereof |
| CN104295301A (en) * | 2014-08-14 | 2015-01-21 | 山东科技大学 | Shallow-buried excavation construction method for cataclastic rock subway tunnel intersection |
| CN104612714A (en) * | 2014-12-31 | 2015-05-13 | 上海市机械施工集团有限公司 | Mining method tunnel construction method and structure through which tunnel can penetrate through surrounding rock poor in geological condition |
| CN105041349A (en) * | 2015-07-26 | 2015-11-11 | 北京工业大学 | Underground excavation construction method for expanded excavation of station on basis of metro regional shield tunnel |
| CN105822310A (en) * | 2016-05-23 | 2016-08-03 | 重庆大学 | Rapid low-risk station tunnel digging method |
| CN106050241A (en) * | 2016-05-23 | 2016-10-26 | 重庆大学 | Construction method for single-construction-channel dual-line same direction and same platform subway stations |
| CN106567717A (en) * | 2015-10-10 | 2017-04-19 | 中铁隧道勘测设计院有限公司 | Construction oblique channel structure utilizing subway exit and entrance and construction method |
| CN109026030A (en) * | 2018-09-10 | 2018-12-18 | 中山大学 | Tunnel circumferential direction digs method |
| CN109026035A (en) * | 2018-09-10 | 2018-12-18 | 中山大学 | Tunnel circumferential direction variable cross-section digs method |
| CN110985025A (en) * | 2019-12-16 | 2020-04-10 | 中铁一局集团有限公司 | Method for reconstructing shield tunnel to carry out mine construction |
| CN111271121A (en) * | 2020-02-12 | 2020-06-12 | 中铁五局集团有限公司 | Shield tunnel segment dismantling construction method |
| CN111594219A (en) * | 2020-06-19 | 2020-08-28 | 中铁第四勘察设计院集团有限公司 | Underground parking station and construction method thereof |
| CN112160755A (en) * | 2020-08-26 | 2021-01-01 | 济南轨道交通集团有限公司 | Subway line construction method for expanding excavation station after shield tunnel construction in advance |
| CN113898349A (en) * | 2021-09-02 | 2022-01-07 | 中国建筑第六工程局有限公司 | Shield tunnel expanding and excavating pipe gallery construction method |
| CN118132899A (en) * | 2024-05-07 | 2024-06-04 | 四川鑫科创安安全科技有限公司 | Safety evaluation system for slope stability of surface mine |
| CN118132899B (en) * | 2024-05-07 | 2024-07-02 | 四川鑫科创安安全科技有限公司 | Safety evaluation system for slope stability of surface mine |
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Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103452561B (en) * | 2013-08-20 | 2015-05-20 | 中铁二局股份有限公司 | Vertical in-tunnel construction method of multilayer transverse channel of underground excavation station of metro, and construction method on east side and west side |
| CN103452561A (en) * | 2013-08-20 | 2013-12-18 | 中铁二局股份有限公司 | Vertical in-tunnel construction method of multilayer transverse channel of underground excavation station of metro, and construction method on east side and west side |
| CN103939105B (en) * | 2014-03-24 | 2016-04-20 | 中铁工程设计咨询集团有限公司 | A kind of construction method and structure laying construction shaft above underground construction |
| CN103939105A (en) * | 2014-03-24 | 2014-07-23 | 中铁工程设计咨询集团有限公司 | Construction method and structure for laying construction shaft above underground engineering |
| CN104100280A (en) * | 2014-07-07 | 2014-10-15 | 中冶交通工程技术有限公司 | Primary double-wing outrigger support structure and tunnel construction method thereof |
| CN104295301A (en) * | 2014-08-14 | 2015-01-21 | 山东科技大学 | Shallow-buried excavation construction method for cataclastic rock subway tunnel intersection |
| CN104612714A (en) * | 2014-12-31 | 2015-05-13 | 上海市机械施工集团有限公司 | Mining method tunnel construction method and structure through which tunnel can penetrate through surrounding rock poor in geological condition |
| CN105041349A (en) * | 2015-07-26 | 2015-11-11 | 北京工业大学 | Underground excavation construction method for expanded excavation of station on basis of metro regional shield tunnel |
| CN106567717A (en) * | 2015-10-10 | 2017-04-19 | 中铁隧道勘测设计院有限公司 | Construction oblique channel structure utilizing subway exit and entrance and construction method |
| CN106567717B (en) * | 2015-10-10 | 2019-03-05 | 中铁第六勘察设计院集团有限公司 | It is a kind of to double as construction access ramp structure and construction method using subway entrance |
| CN105822310A (en) * | 2016-05-23 | 2016-08-03 | 重庆大学 | Rapid low-risk station tunnel digging method |
| CN106050241A (en) * | 2016-05-23 | 2016-10-26 | 重庆大学 | Construction method for single-construction-channel dual-line same direction and same platform subway stations |
| CN105822310B (en) * | 2016-05-23 | 2020-01-17 | 重庆大学 | Rapid low-risk subway station tunnel construction method |
| CN109026035A (en) * | 2018-09-10 | 2018-12-18 | 中山大学 | Tunnel circumferential direction variable cross-section digs method |
| CN109026030A (en) * | 2018-09-10 | 2018-12-18 | 中山大学 | Tunnel circumferential direction digs method |
| CN109026035B (en) * | 2018-09-10 | 2020-04-07 | 中山大学 | Tunnel annular variable cross section expanding excavation method |
| CN110985025A (en) * | 2019-12-16 | 2020-04-10 | 中铁一局集团有限公司 | Method for reconstructing shield tunnel to carry out mine construction |
| CN111271121A (en) * | 2020-02-12 | 2020-06-12 | 中铁五局集团有限公司 | Shield tunnel segment dismantling construction method |
| CN111594219A (en) * | 2020-06-19 | 2020-08-28 | 中铁第四勘察设计院集团有限公司 | Underground parking station and construction method thereof |
| CN112160755A (en) * | 2020-08-26 | 2021-01-01 | 济南轨道交通集团有限公司 | Subway line construction method for expanding excavation station after shield tunnel construction in advance |
| CN112160755B (en) * | 2020-08-26 | 2023-03-21 | 济南轨道交通集团有限公司 | Subway line construction method for expanding excavation station after shield tunnel construction in advance |
| CN113898349A (en) * | 2021-09-02 | 2022-01-07 | 中国建筑第六工程局有限公司 | Shield tunnel expanding and excavating pipe gallery construction method |
| CN118132899A (en) * | 2024-05-07 | 2024-06-04 | 四川鑫科创安安全科技有限公司 | Safety evaluation system for slope stability of surface mine |
| CN118132899B (en) * | 2024-05-07 | 2024-07-02 | 四川鑫科创安安全科技有限公司 | Safety evaluation system for slope stability of surface mine |
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Application publication date: 20120118 |