CN103046933B - Shield station-crossing tunneling and station parallel construction method - Google Patents

Shield station-crossing tunneling and station parallel construction method Download PDF

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Publication number
CN103046933B
CN103046933B CN201210522921.5A CN201210522921A CN103046933B CN 103046933 B CN103046933 B CN 103046933B CN 201210522921 A CN201210522921 A CN 201210522921A CN 103046933 B CN103046933 B CN 103046933B
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China
Prior art keywords
shield
station
construction
guide rail
plate
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CN103046933A (en
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王宗勇
雷军
毋海军
赵香萍
刘丽花
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China Railway 12th Bureau Group Co Ltd
Second Engineering Co Ltd of China Railway 12th Bureau Group Co Ltd
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China Railway 12th Bureau Group Co Ltd
Second Engineering Co Ltd of China Railway 12th Bureau Group Co Ltd
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Abstract

The invention relates to the technical field of tunnel shield construction, in particular to a shield station-crossing tunneling and station parallel construction method. The technical problem that existing lagged station construction influences shield station crossing is solved. The shield station-crossing tunneling and station parallel construction method comprises the steps of performing station platform layer line production construction, wherein upper edge ribs are adding onto a middle plate, and the station platform layer line production construction adopts an early strength concrete technology and a one-time middle plate pouring process, applies a station platform layer lateral wall and comprises line production processes; paving a shield body receiving guide rail on a base plate, and performing shield receiving through the guide rail and a rolling wheel; and performing shield complete machine station crossing and station platform layer parallel construction, wherein the construction applies the curved guide rail and the rolling wheel, abandoned duct pieces are installed on the receiving guide rail behind a shield tail, and a ready-made duct piece crane is adopted to perform dismantling and installation, so that the shield complete machine station crossing and station platform layer parallel construction is achieved, shield secondary starting tunneling and station residual main body parallel construction is created, no hoisting port is reserved on a station fixing plate, and a novel technology of shield secondary starting tunneling construction of a crossed station is created. A construction period is shortened greatly, and the shield station-crossing tunneling and station parallel construction method has the advantages of being simple in process, low in construction cost, controllable in schedule and the like.

Description

A kind of shield structure misses the stop and tunnels and station parallel construction method
Technical field
The present invention relates to tunneling shield technical field of construction, be specially a kind of shield structure miss the stop driving with station parallel construction method.
Background technology
In recent years along with the lasting construction of urban infrastructure; underground railway track traffic presents fast-developing trend; some city underground running tunnels adopt the ratio of shield construction more than 90%; but in shield-tunneling construction, usually have a strong impact on shield structure because station construction progress is delayed to miss the stop driving; 80% with bus loading zone because traffic data process affects main body construction, finally cause interval shield structure to shut down the wait-receiving mode phenomenon of missing the stop.
Urban Metro Construction is in order to reduce investment and make full use of the fast advantage of shield driving progress, and often a shield structure will tunnel several interval continuously.But how station provides to miss the stop and become the bottle-neck section of construction of subway in Urban Metro Construction on time, miss the stop station and shield structure miss the stop and become the critical process of present subway construction.Construction unit often misses the stop outside design station and adopts separate launching to reduce the delayed impact of station construction in construction is prepared early stage, even in order to do not affect shield structure miss the stop adopt first tunnel after the construction method of standing.These two kinds of methods all substantially prolongs the station construction period, add many temporary construction expenses, have a strong impact on station traffic and recover.
Current existing construction method cannot the technical barrier that misses the stop of Solving Station construction lagging influence shield structure.
Summary of the invention
The present invention is delayed and affect the technical barrier that shield structure misses the stop in order to solve existing station construction, provides a kind of shield structure to miss the stop driving and station parallel construction method.
The present invention adopts following technical scheme to realize: a kind of shield structure misses the stop and tunnels and station parallel construction method, comprises the following steps:
Step one, the construction flow process of station platform layer
To construct immediately after A, soil excavation one section base plate, side wall waterproof of constructing while base plate maintenance; B, side wall reinforcing bar binding set up middle plate full hall scaffold simultaneously, side wall model sheetinstallat lay simultaneously in template die plate; C, set up plate upper limb reinforcing bar in station layer, middle plate reinforcing bar binding carries out full hall scaffold cross binding fixation side wall form simultaneously, bears symmetrical pre-buried hole for hoist above endless tube sheet at shield structure secondary every block that starts; D, employing early strength concrete carry out side wall and middle plate one-time-concreting, then carry out plate reinforcing bar binding in next section, make it to form continuous productive process; E, when concrete arrives after intensity, remove full hall scaffold; Described early strength concrete is existing known products, is commercially available;
Step 2, lay on base plate shield body receive guide rail, utilize guide rail and roller to carry out the reception of shield structure;
Step 3, shield structure complete machine miss the stop and station layer parallel construction
A, according to shield solid offsetting distance design curve guide rail, and and shield structure reception guide rail be connected; B, on the reception guide rail at shield tail rear, weld baffle plate, install the discarded section of jurisdiction held out against with shield structure oil cylinder, then start before shield structure oil cylinder carries out shield structure complete machine and move, when reach 1.5 meters of after-contraction oil cylinders, install before continuing in discarded section of jurisdiction and move, until after installing 4 pieces of section of jurisdiction reaches, again weld baffle plate on the reception guide rail at shield tail rear, then utilize segment crane to remove waste gas section of jurisdiction and reinstall rear continuation reach; C, according to station platform layer scaffold, speed of removing is carried out shield structure and is received the reach of guide rail and install; D, shield structure secondary originating terminal station layer are carried out the preparation of the main body construction of more than station layer, are installed the pedestal that starts simultaneously after having constructed;
Step 4, the shield structure secondary driving that starts remains body parallel construct with station
A, shield structure move on to the pedestal that starts in place after install reaction frame, assembled negative endless tube sheet carries out secondary and to start driving; From receiving terminal, adopt full hall scaffold construction station residue main body after B, shield launching, station top board construction does not stay hoisting port, carries out backfilling of earthwork after having constructed, and then resumes traffic and carries out attached construction; C, the complete rear utilization of shield driving are reserved after hole for hoist removes negative endless tube sheet and are carried out portal circulating application work.
Compared with prior art, the present invention has the following advantages:
1, in station layer, upper limb muscle set up by plate, solve the above structure construction of traditional station layer complete after could remove station layer scaffold construction technical barrier, achieve the above main body of station layer of constructing again after shield structure misses the stop;
2, use curvilinear guide and roller technology to change the shutdown of traditional shield structure and wait for station layer after having constructed after the situation of standing, adopt on the reception guide rail at shield tail rear and install discarded section of jurisdiction, and adopt ready-made segment crane to carry out removing and installing, achieve shield structure complete machine and miss the stop fast and station platform layer parallel construction;
3, adopt early strength concrete technology, use station station layer side wall, middle plate one-time-concreting technique and continuous productive process operation, first to construct station layer, solve station construction delayed, affect the technical barrier that shield structure receives, realize shield structure miss the stop and station layer synchronization job by removing full hall scaffold in time;
4, reserve hole for hoist at middle plate, solve shield structure secondary and to start the impact of tunneling reserved hoisting port on station construction, realize start driving and station of shield structure secondary and remain main body construction parallel operations;
In a word, adopt shield structure of the present invention to miss the stop to tunnel and station parallel construction method, solve the delayed technical barrier that shield structure condition of acceptance can not be provided on time of station progress of missing the stop, and started shield structure and miss the stop and the technique of station platform layer parallel construction, achieve shield launching driving and the above agent structure synchronous construction of station platform layer, create shield structure secondary to start driving and the new record that simultaneously completes of station, substantially reduce the construction period.There is the advantages such as technique is simple, construction cost is low, progress is controlled, adopt this technology to have successfully completed left and right, Changsha subway Line 1 large holder station technique on shield machine's station-crossing to start driving, fill up China's shield structure to miss the stop driving and the technological gap of station parallel construction of starting, achieve good economic benefit and social benefit.This method is applicable to miss the stop in shield structure station the excavation work again that starts.
Accompanying drawing explanation
Fig. 1 is that shield structure of the present invention misses the stop and station platform layer parallel operations floor map;
Fig. 2 is that shield structure of the present invention misses the stop and station platform layer parallel operations generalized section;
Fig. 3 is the left view of Fig. 2;
Fig. 4 is that shield launching of the present invention driving remains body parallel operation generalized section with station;
In figure: 1-base plate; 2-side wall reinforcing bar; 3-full hall scaffold; 4-side wall template; Template die plate in 5-; 6-upper limb reinforcing bar; Slab muscle in 7-; 8-cross binding; 9-receives guide rail; 10-baffle plate; 11-shield structure oil cylinder; 12-discards section of jurisdiction; 13-roller; 14-curvilinear guide; 15-station residue main body.
Detailed description of the invention
A kind of shield structure misses the stop and tunnels and station parallel construction method, comprises the following steps:
Step one, the construction flow process of station platform layer
To construct immediately after A, soil excavation one section base plate 1, side wall waterproof of constructing while base plate maintenance; Middle plate full hall scaffold 3 is set up in B, side wall reinforcing bar 2 colligation simultaneously, and side wall template 4 installs template die plate 5 in laying simultaneously; C, set up plate upper limb reinforcing bar 6 in station layer, full hall scaffold cross binding 8 fixation side wall form is carried out in the colligation of middle slab muscle 7 simultaneously, bears symmetrical pre-buried hole for hoist above endless tube sheet at shield structure secondary every block that starts; D, employing early strength concrete carry out side wall and middle plate one-time-concreting, then carry out plate reinforcing bar binding in next section, make it to form continuous productive process; E, when concrete arrives after intensity, remove full hall scaffold;
Step 2, base plate is laid shield body receive guide rail 9, utilize guide rail and roller 13 to carry out the reception of shield structure, detailed process is: A, shield structure remove dregs before cutterhead after having abolished diaphragm wall, on base plate, then lays shield body receive guide rail; B, limit sky push away shield machine limit synchronous grouting, segment assembly when oil cylinder is elongated to maximum, weld front wheel three/a period of time, weld shield body rear roller when shield body exposes 2/3rds when shield body exposes portal.C, with i iron, last a few endless tube sheet to be linked into an integrated entity after last ring pipe sheet assembling is complete, then adopt dual slurry to carry out secondary after-teeming slurry, utilize shield structure oil cylinder that shield tail is released portal and complete shield structure and receive.
Step 3, shield structure complete machine miss the stop and station layer parallel construction
A, according to shield solid offsetting distance design curve guide rail 14, and and shield structure reception guide rail be connected; B, on the reception guide rail at shield tail rear, weld baffle plate 10, install the discarded section of jurisdiction 12 held out against with shield structure oil cylinder 11, then start before shield structure oil cylinder carries out shield structure complete machine and move, when reach 1.5 meters of after-contraction oil cylinders, install before continuing in discarded section of jurisdiction and move, until after installing 4 pieces of section of jurisdiction reaches, again weld baffle plate on the reception guide rail at shield tail rear, then utilize segment crane to remove waste gas section of jurisdiction and reinstall rear continuation reach; C, according to station platform layer scaffold, speed of removing is carried out shield structure and is received the reach of guide rail and install; D, shield structure secondary originating terminal station layer are carried out the preparation of the main body construction of more than station layer, are installed the pedestal that starts simultaneously after having constructed;
Step 4, shield structure secondary start to tunnel and remain main body 15 parallel construction with station
A, shield structure move on to the pedestal that starts in place after install reaction frame, assembled negative endless tube sheet carries out secondary and to start driving; From receiving terminal, adopt full hall scaffold construction station residue main body after B, shield launching, station top board construction does not stay hoisting port, carries out backfilling of earthwork after having constructed, and then resumes traffic and carries out attached construction; C, the complete rear utilization of shield driving are reserved after hole for hoist removes negative endless tube sheet and are carried out portal circulating application work.
case history:
Changsha subway Line 1 10 marks totally three intervals, the shield structure secondary that carries out at large holder station and station, sweet osmanthus level ground respectively missing the stop for twice after CITIC Plaza starts starts, the wherein large holder head of a station 202 meters, move because needs traffic data process and pipeline change, when shield structure arrives large holder station soon, received well base plate has just started to build, traditionally construction method can not provide shield structure condition of acceptance and condition of missing the stop on time, use side wall and middle plate one-time-concreting early strength concrete technique and continuous productive process operation, first to construct platform, solve the technical barrier that traditional handicraft cannot provide shield structure condition of acceptance on time.Use curvilinear guide and roller technology to receive simultaneously, then adopt and guide rail to weld baffle plate after shield tail and discarded section of jurisdiction is installed, start shield structure oil cylinder and realize shield structure and to miss the stop reach and the parallel operations of station platform layer.In utilization, plate is set up upper limb reinforcing bar and is strengthened, and realizes the miss the stop driving that starts of shield structure and remain main body carry out parallel operations with station, decreases tradition shutdown and within 8 months, just to miss the stop situation.Create shield structure secondary start driving and station construct complete simultaneously.Prove this advanced technology, the method has novelty, and applicability is strong.
Building subway city more than 35 at present, moving the station that causes missing the stop because expropriation of land and pipeline change the reception of shield structure and condition of missing the stop can not be provided on time.Method of the present invention just solve station construction of missing the stop delayed and can not provide on time miss the stop shield structure receive and the technical barrier that misses the stop, therefore, method promotion prospect of the present invention is good.

Claims (1)

1. shield structure misses the stop and tunnels and a station parallel construction method, it is characterized in that comprising the following steps:
Step one, the construction flow process of station platform layer
To construct immediately after A, soil excavation one section base plate (1), side wall waterproofing course of constructing while base plate maintenance; Middle plate full hall scaffold (3) is set up in B, side wall reinforcing bar (2) colligation simultaneously, and side wall template (4) installs template die plate (5) in laying simultaneously; C, set up plate upper limb reinforcing bar (6) in station layer, full hall scaffold cross binding (8) fixation side wall form is carried out in the colligation of middle slab muscle (7) simultaneously, bears symmetrical pre-buried hole for hoist above endless tube sheet at shield structure secondary every block that starts; D, employing early strength concrete carry out side wall and middle plate one-time-concreting, then carry out plate reinforcing bar binding in next section, make it to form continuous productive process; E, when concrete arrives after intensity, remove full hall scaffold;
Step 2, lay on base plate shield body receive guide rail (9), utilize guide rail and roller (13) to carry out the reception of shield structure;
Step 3, shield structure complete machine miss the stop and station layer parallel construction
A, according to shield solid offsetting distance design curve guide rail (14), and and shield structure reception guide rail be connected; B, on the reception guide rail at shield tail rear, weld baffle plate (10), install the discarded section of jurisdiction (12) held out against with shield structure oil cylinder (11), then start before shield structure oil cylinder carries out shield structure complete machine and move, when reach 1.5 meters of after-contraction oil cylinders, install before continuing in discarded section of jurisdiction and move, until after installing 4 pieces of section of jurisdiction reaches, again weld baffle plate on the reception guide rail at shield tail rear, then utilize segment crane to remove discarded section of jurisdiction and reinstall rear continuation reach; C, according to station platform layer scaffold, speed of removing is carried out shield structure and is received the reach of guide rail and install; D, shield structure secondary originating terminal station layer are carried out the preparation of the main body construction of more than station layer, are installed the pedestal that starts simultaneously after having constructed;
Step 4, shield structure secondary start to tunnel and remain main body (15) parallel construction with station
A, shield structure move on to the pedestal that starts in place after install reaction frame, assembled negative endless tube sheet carries out secondary and to start driving; From receiving terminal, adopt full hall scaffold construction station residue main body after B, shield launching, station top board construction does not stay hoisting port, carries out backfilling of earthwork after having constructed, and then resumes traffic and carries out attached construction; C, the complete rear utilization of shield driving are reserved hole for hoist and are removed negative endless tube sheet, then carry out portal circulating application work.
CN201210522921.5A 2012-12-08 2012-12-08 Shield station-crossing tunneling and station parallel construction method Active CN103046933B (en)

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Application Number Priority Date Filing Date Title
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CN103352704B (en) * 2013-07-29 2015-07-15 北京住总集团有限责任公司 Construction method for enabling tunnel shield to pass through vertical shaft structure
CN105065008A (en) * 2015-07-30 2015-11-18 中国建筑第六工程局有限公司 Method for preventing sand gushing in shield tunneling construction
CN108222953B (en) * 2018-01-09 2019-07-19 中铁四局集团第四工程有限公司 U-shaped opening shield machine passes through the construction method of piping lane non-standard segment
CN109577998B (en) * 2018-12-04 2020-10-09 中铁十二局集团有限公司 Construction method for backfilling and station-crossing of piston air duct in shield interval
CN109899074B (en) * 2019-02-02 2020-07-28 中国电建集团铁路建设有限公司 Integral station-crossing secondary starting construction method for sliding steel sleeve shield tunneling machine
CN110080787B (en) * 2019-05-13 2021-05-11 中铁第六勘察设计院集团有限公司 Construction method for in-station stacked shield station-crossing structural type of underground excavation station
CN110424969B (en) * 2019-07-03 2020-09-11 中铁一局集团厦门建设工程有限公司 Construction method for open cut method station with tunnel before station

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