CN110306593A - A kind of station construction method - Google Patents

A kind of station construction method Download PDF

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Publication number
CN110306593A
CN110306593A CN201910595962.9A CN201910595962A CN110306593A CN 110306593 A CN110306593 A CN 110306593A CN 201910595962 A CN201910595962 A CN 201910595962A CN 110306593 A CN110306593 A CN 110306593A
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CN
China
Prior art keywords
concrete
construction
plate
pile
support
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910595962.9A
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Chinese (zh)
Inventor
王有旗
朱连臣
刘普前
宋昱宇
李苗
刘玉国
姜智彬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Railway 25th Bureau Group Co Ltd
Fifth Engineering Co Ltd of China Railway 25th Bureau Group Co Ltd
Original Assignee
China Railway 25th Bureau Group Co Ltd
Fifth Engineering Co Ltd of China Railway 25th Bureau Group Co Ltd
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Filing date
Publication date
Application filed by China Railway 25th Bureau Group Co Ltd, Fifth Engineering Co Ltd of China Railway 25th Bureau Group Co Ltd filed Critical China Railway 25th Bureau Group Co Ltd
Priority to CN201910595962.9A priority Critical patent/CN110306593A/en
Publication of CN110306593A publication Critical patent/CN110306593A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00Independent underground or underwater structures; Retaining walls
    • E02D29/04Making large underground spaces, e.g. for underground plants, e.g. stations of underground railways; Construction or layout thereof
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/18Bulkheads or similar walls made solely of concrete in situ
    • E02D5/187Bulkheads or similar walls made solely of concrete in situ the bulkheads or walls being made continuously, e.g. excavating and constructing bulkheads or walls in the same process, without joints
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22Piles
    • E02D5/34Concrete or concrete-like piles cast in position ; Apparatus for making same
    • E02D5/36Concrete or concrete-like piles cast in position ; Apparatus for making same making without use of mouldpipes or other moulds

Abstract

The present invention relates to a kind of station construction methods, it includes the operation of layering excavation of foundation pit, stratified body building operation and the backfill operation of parallel sectional alternately, wherein, single section construction operation, along construction method, specifically includes layering excavation of foundation pit operation, stratified body building operation, backfill job step using open cut.Single section described in this station construction method is since both ends, to intermediate two-way parallel excavation.This station construction method, sectional level substantially increase construction efficiency to capable construction process;Stage excavation cooperates foundation pit, main structure alternately operating mode, ensure that Work sectors foundation pit digs the stability in face and main structure;With excavate, with go along with sb. to guard him, with build, with remove, with the section construction of backfill, reduce the influence to public transport.

Description

A kind of station construction method
Technical field
The present invention relates to city track traffic engineering technical field of construction, in particular to one kind can be improved construction efficiency, Ensure that foundation pit digs the stability in face and main structure, reduces the station construction method that construction influences public transport.
Background technique
With the fast development in China city, wall is increasingly gathered around in the traffic of large- and-medium size cities, has seriously affected city dweller's Quality of life, accelerating Urban Rail Transit Project becomes the common recognition in more and more cities.Underground tunneling subway station conduct The important component of city track traffic engineering, because having many advantages, such as not influence traffic above-ground, moving that change pipeline less, in wagon flow With the more inner city of pipeline using relatively broad.Existing station construction method mainly has open cut and two kinds of tunneling, due to station Need to build entrance as the interface channel between subway station and ground, thus it is general all or part of using open-cut Method, that there are construction efficiency is low for existing unidirectional open-cut method, foundation pit digs the main structure that facial contour is unstable and comes to it Building road pavement public transport unstable, long in time limit influences headlight defect.
Summary of the invention
The technical problem to be solved in the present invention is intended to provide one kind and can be improved construction efficiency, ensures that foundation pit digs face and main body The stability of structure reduces the station construction method that construction influences public transport.
In order to solve the above technical problems, this station construction method includes the layering excavation of foundation pit of parallel sectional alternately Operation, stratified body building operation and backfill operation, wherein single section construction operation, along construction method, is specifically wrapped using open cut Include following steps,
S1 --- layering excavation of foundation pit operation: (1) perform diaphram wall, interim column pile foundation, dewatering well;(2) it opens It digs to 1m under first of support center line, then first of concrete support is installed;(3) precipitation is excavated in second support 0.5m under heart line installs second concrete support, applies prestressing force;(4) precipitation is excavated under third road support center line 0.5m simultaneously installs third road concrete support;Precipitation is excavated to final excavation face;
S2 --- stratified body constructs operation: (1) performing under bottom plate and part side wall waterproof layer;Pour station bottom plate, low Beam, part side wall and column concrete;Remove the support of third road;(2) two layers of underground part interior wall, middle plate are poured;Remove second Road support;(3) basement one interior wall, column, top beam are poured;Waterproof roofing layer is performed, capping beam of constructing;Remove first Support, interim column and steel binder;
S3 --- backfill operation: (1) remove temporary structure above ground-connecting-wall;(2) bottom surface is backfilled to resume traffic.
Diaphram wall described in this station construction method and step S1 cooperates hydraulic grooving machine grooving, crawler crane using impact drill Steel reinforcement cage is put, double duct underwater grouting concrete is at wall;Wall top is modified after the completion of diaphram wall and binds crown beam reinforcing bar, using combination steel Template formwork erection, commodity concrete placings.Concrete support described in this station construction method and step S1 include cast-in-situ bored pile, rotary churning pile, Casing bitten pile, reinforced concrete pile and lattice column;
Further, the cast-in-situ bored pile places steel using rotary drilling rig or impact drilled as holes, crawler crane or truck crane Muscle cage, conduit underwater grouting concrete pile;The rotary churning pile uses rotary churning pile machine drill hole. while being promoted after drilling to completion Jet groutinl is carried out to design height;Described sleeve pipe interlocking pile is drilled using all casing drill, is drilled into and is set by scheme drilling sequences Count depth;The reinforced concrete pile places steel reinforcement cage, conduit underwater grouting concrete pile using crawler crane or truck crane;The lattice column It is drilled using rotary drilling rig, lattice column, conduit underwater grouting concrete pile is placed using crawler crane or truck crane after pore-forming.
Main structure described in this station construction method and step S2 is according to bed course, bottom plate, side wall, middle plate, side wall, top plate, anti- Water is taken according to sequence from top to bottom using full hall scaffold+bulk combined steel formwork formwork erection, point of pumping commodity concrete placings Section parallel line production method successively carries out.
Further, the main structure piecewise-parallel continuous productive process method the specific steps are,
After bottom plate performs waterproof, assembling reinforcement, installed plug template simultaneously pours concrete;
After side wall performs waterproof, assembling reinforcement according to design, poured using pumping concrete is carried out after bulk combined steel formwork formwork erection;
Middle plate, top plate set up full hall scaffold, are laid with template after bottom plate and middle plate pour completion and reach design strength After partly wire-tiing, pumping concrete placings are carried out;
After the completion of the binding of pillar reinforcing bar, using shaping combined steel shuttering, completes after reinforcing, carry out pumping concrete placings.
Single section described in this station construction method is since both ends, to intermediate two-way parallel excavation.
A kind of station construction method of the present invention, sectional level substantially increase construction efficiency to capable construction process; Stage excavation cooperates foundation pit, main structure alternately operating mode, ensure that Work sectors foundation pit digs the stabilization in face and main structure Property;With excavate, with go along with sb. to guard him, with build, with remove, with the section construction of backfill, reduce the influence to public transport.
Detailed description of the invention
Station construction method of the present invention is described further with reference to the accompanying drawing:
Fig. 1 is total construction process line frame graph of this station construction method;
Fig. 2 is the specific process schematic diagram of this station construction method;
Fig. 3 is the main structure piecewise-parallel continuous productive process process line frame graph of this station construction method.
Specific embodiment
As shown in Figure 1, 2, this station construction method include the layering excavation of foundation pit operation alternately of parallel sectional, point Layer main body constructs operation and backfill operation, wherein single section construction operation, along construction method, specifically includes following step using open cut Suddenly,
S1 --- layering excavation of foundation pit operation: (1) perform diaphram wall, interim column pile foundation, dewatering well;(2) it opens It digs to 1m under first of support center line, then first of concrete support is installed;(3) precipitation is excavated in second support 0.5m under heart line installs second concrete support, applies prestressing force;(4) precipitation is excavated under third road support center line 0.5m simultaneously installs third road concrete support;Precipitation is excavated to final excavation face;
S2 --- stratified body constructs operation: (1) performing under bottom plate and part side wall waterproof layer;Pour station bottom plate, low Beam, part side wall and column concrete;Remove the support of third road;(2) two layers of underground part interior wall, middle plate are poured;Remove second Road support;(3) basement one interior wall, column, top beam are poured;Waterproof roofing layer is performed, capping beam of constructing;Remove first Support, interim column and steel binder;
S3 --- backfill operation: (1) remove temporary structure above ground-connecting-wall;(2) bottom surface is backfilled to resume traffic.
Diaphram wall described in this station construction method and step S1 cooperates hydraulic grooving machine grooving, crawler crane using impact drill Steel reinforcement cage is put, double duct underwater grouting concrete is at wall;Wall top is modified after the completion of diaphram wall and binds crown beam reinforcing bar, using combination steel Template formwork erection, commodity concrete placings.Concrete support described in this station construction method and step S1 include cast-in-situ bored pile, rotary churning pile, Casing bitten pile, reinforced concrete pile and lattice column;
Further, the cast-in-situ bored pile places steel using rotary drilling rig or impact drilled as holes, crawler crane or truck crane Muscle cage, conduit underwater grouting concrete pile;The rotary churning pile uses rotary churning pile machine drill hole. while being promoted after drilling to completion Jet groutinl is carried out to design height;Described sleeve pipe interlocking pile is drilled using all casing drill, is drilled into and is set by scheme drilling sequences Count depth;The reinforced concrete pile places steel reinforcement cage, conduit underwater grouting concrete pile using crawler crane or truck crane;The lattice column It is drilled using rotary drilling rig, lattice column, conduit underwater grouting concrete pile is placed using crawler crane or truck crane after pore-forming.
As shown in figure 3, main structure described in this station construction method and step S2 is according to bed course, bottom plate, side wall, middle plate, side Wall, top plate, waterproof are taken according to sequence from top to bottom using full hall scaffold+bulk combined steel formwork formwork erection, pump commodity The piecewise-parallel continuous productive process method of concrete placings successively carries out.
Further, the main structure piecewise-parallel continuous productive process method the specific steps are,
After bottom plate performs waterproof, assembling reinforcement, installed plug template simultaneously pours concrete;
After side wall performs waterproof, assembling reinforcement according to design, poured using pumping concrete is carried out after bulk combined steel formwork formwork erection;
Middle plate, top plate set up full hall scaffold, are laid with template after bottom plate and middle plate pour completion and reach design strength After partly wire-tiing, pumping concrete placings are carried out;
After the completion of the binding of pillar reinforcing bar, using shaping combined steel shuttering, completes after reinforcing, carry out pumping concrete placings.
Single section described in this station construction method is since both ends, to intermediate two-way parallel excavation.
This station construction method, sectional level substantially increase construction efficiency to capable construction process;Stage excavation Cooperate foundation pit, main structure alternately operating mode, ensure that Work sectors foundation pit digs the stability in face and main structure;With opening Dig, with go along with sb. to guard him, with build, with remove, with the section construction of backfill, reduce the influence to public transport.
Above embodiment, which is intended to illustrate the present invention, to be realized or use for professional and technical personnel in the field, to above-mentioned Embodiment, which is modified, will be readily apparent to those skilled in the art, therefore the present invention includes but is not limited to Above embodiment, it is any to meet the claims or specification description, meet with principles disclosed herein and novelty, The method of inventive features, technique, product, fall within the scope of protection of the present invention.

Claims (6)

1. a kind of station construction method, it is characterized in that: including the operation of layering excavation of foundation pit, the layering of parallel sectional alternately Subject construction operation and backfill operation, wherein single section construction operation, along construction method, specifically includes following step using open cut Suddenly,
S1 --- layering excavation of foundation pit operation: (1) perform diaphram wall, interim column pile foundation, dewatering well;(2) it is excavated to 1m under first of support center line, then installs first of concrete support;(3) precipitation is excavated to second support center line Lower 0.5m installs second concrete support, applies prestressing force;(4) precipitation, be excavated to third road support center line under 0.5m simultaneously Third road concrete support is installed;Precipitation is excavated to final excavation face;
S2 --- stratified body constructs operation: (1) performing under bottom plate and part side wall waterproof layer;Pour station bottom plate, low beam, portion Divide side wall and column concrete;Remove the support of third road;(2) two layers of underground part interior wall, middle plate are poured;Remove second branch Support;(3) basement one interior wall, column, top beam are poured;Waterproof roofing layer is performed, capping beam of constructing;It removes first of support, face Shi Lizhu and steel binder;
S3 --- backfill operation: (1) remove temporary structure above ground-connecting-wall;(2) bottom surface is backfilled to resume traffic.
2. station construction method according to claim 1, it is characterized in that: diaphram wall described in S1 is cooperated using impact drill Hydraulic grooving machine grooving, crawler belt hang steel reinforcement cage, and double duct underwater grouting concrete is at wall;Wall top is modified after the completion of diaphram wall to tie up Crown beam reinforcing bar is pricked, using combined steel formwork formwork erection, commodity concrete placings.
3. station construction method according to claim 1, it is characterized in that: concrete support described in S1 includes drill-pouring Stake, rotary churning pile, casing bitten pile, reinforced concrete pile and lattice column;
The cast-in-situ bored pile places steel reinforcement cage using rotary drilling rig or impact drilled as holes, crawler crane or truck crane, and conduit is underwater Concrete pile is perfused;
The rotary churning pile uses rotary churning pile machine drill hole, carries out jet groutinl after drilling to completion while being promoted to designing height Degree;
Described sleeve pipe interlocking pile is drilled using all casing drill, by scheme drilling sequences drilling to completion;
The reinforced concrete pile places steel reinforcement cage, conduit underwater grouting concrete pile using crawler crane or truck crane;
The lattice column is drilled using rotary drilling rig, places lattice column using crawler crane or truck crane after pore-forming, and conduit fills under water Infuse concrete pile.
4. station construction method according to claim 1, it is characterized in that: main structure described in s2 is according to bed course, bottom plate, side Wall, middle plate, side wall, top plate, waterproof are taken vertical using full hall scaffold+bulk combined steel formwork according to sequence from top to bottom The piecewise-parallel continuous productive process method of mould, pumping commodity concrete placings successively carries out.
5. station construction method according to claim 4, it is characterized in that: main structure piecewise-parallel continuous productive process side Method the specific steps are,
After bottom plate performs waterproof, assembling reinforcement, installed plug template simultaneously pours concrete;
After side wall performs waterproof, assembling reinforcement according to design, poured using pumping concrete is carried out after bulk combined steel formwork formwork erection;
Middle plate, top plate set up full hall scaffold after bottom plate and middle plate pour completion and reach design strength, are laid with template half and prick After reinforcing bar, pumping concrete placings are carried out;
After the completion of the binding of pillar reinforcing bar, using shaping combined steel shuttering, completes after reinforcing, carry out pumping concrete placings.
6. station construction method according to any one of claims 1 to 5, it is characterized in that: the single section from both ends to Intermediate two-way parallel excavation.
CN201910595962.9A 2019-07-03 2019-07-03 A kind of station construction method Pending CN110306593A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112177008A (en) * 2020-09-07 2021-01-05 中国一冶集团有限公司 Construction method for deep foundation pit excavation
CN112609698A (en) * 2020-11-18 2021-04-06 中铁二局集团有限公司 Construction method of frame support foundation pit
CN113153384A (en) * 2021-03-24 2021-07-23 中交路桥建设有限公司 Construction method for deep-buried subway station under rock geology
CN113153383A (en) * 2021-03-24 2021-07-23 中交路桥建设有限公司 Construction method for deep-buried large-section subway station

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CN103590425A (en) * 2013-11-28 2014-02-19 中铁二十局集团第五工程有限公司 Peaty soft soil stratum subway station construction technology
CN108914966A (en) * 2018-08-15 2018-11-30 北京市政建设集团有限责任公司 A kind of open-cut station main structure and its construction method

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112177008A (en) * 2020-09-07 2021-01-05 中国一冶集团有限公司 Construction method for deep foundation pit excavation
CN112609698A (en) * 2020-11-18 2021-04-06 中铁二局集团有限公司 Construction method of frame support foundation pit
CN113153384A (en) * 2021-03-24 2021-07-23 中交路桥建设有限公司 Construction method for deep-buried subway station under rock geology
CN113153383A (en) * 2021-03-24 2021-07-23 中交路桥建设有限公司 Construction method for deep-buried large-section subway station

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