CN105736001A - Construction method for building subway station through precast parts - Google Patents

Construction method for building subway station through precast parts Download PDF

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Publication number
CN105736001A
CN105736001A CN201610197928.2A CN201610197928A CN105736001A CN 105736001 A CN105736001 A CN 105736001A CN 201610197928 A CN201610197928 A CN 201610197928A CN 105736001 A CN105736001 A CN 105736001A
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China
Prior art keywords
prefabricated
station
construction
construction method
pile
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Granted
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CN201610197928.2A
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Chinese (zh)
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CN105736001B (en
Inventor
王国富
王德超
路林海
李中会
曹正龙
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Jinan Rail Transit Group Co Ltd
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Jinan Rail Transit Group Co Ltd
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Priority to CN201610197928.2A priority Critical patent/CN105736001B/en
Publication of CN105736001A publication Critical patent/CN105736001A/en
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Publication of CN105736001B publication Critical patent/CN105736001B/en
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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries

Abstract

The invention discloses a construction method for building a subway station through precast parts.The construction method comprises the following steps that firstly, a waterproof curtain structure is constructed, and precipitation is conducted; secondly, precast piles are constructed to a designed elevation in the stretching direction of the station to be built; thirdly, a vertical shaft is excavated on the road side, and a cross aisle is constructed in the vertical shaft and led to the cross section of the station; fourthly, a cross section upper step soil body is excavated, a precast roof arch and sidewall panels are spliced, and a top longitudinal beam is cast in place; fifthly, a cross section lower step soil body is excavated, a precast inverted arch and sidewall panels are spliced, and a middle longitudinal beam and a bottom longitudinal beam are cast in place; sixthly, temporary horizontal bracings are detached segment by segment, formworks are erected on the inner sides of the sidewall panels between the piles, reinforcement cages are set up, and sidewalls are cast in place; seventhly, middle plate structures are spliced, the temporary precast piles are removed, and an overall structure of the station is formed.According to the construction method, road surface traffic is not affected, little environmental pollution is caused, the quality is reliable, construction is rapid, and the precast parts can improve the overall stability of the station.

Description

A kind of construction method adopting prefabricated parts subway station
Technical field
The present invention relates to underground structrue engineering technical field, relate generally to a kind of construction method adopting prefabricated parts subway station, be particularly suited for the metro station construction of downtown area.
Background technology
Current metro station construction can adopt cut and cover method, shallow burial hidden digging or shield method, wherein comparatively conventional with cut and cover method or shallow burial hidden digging.The many construction in subway station, in central area, city, adopt cut and cover tunneling, need full-time closing urban road, have increased the weight of Urban Traffic Jam Based;City underground utilities are intensive, change shifting difficulty big;Foundation pit construction is seriously polluted to surrounding enviroment, and the live and work of nearby residents is affected bigger by construction noise;These defects make cut and cover tunneling be disturbed big, long in time limit, indirect construction cost increase.Shallow burial hidden digging or digging method construction alleviate the problem that traffic above-ground pressure and pipeline migrate to a certain extent, but this engineering method need at underground cast-in-place armored concrete, exist long in time limit, poor working environment, security risk are many, quality is difficult to ensure the defects such as card.Shield construction subway station generally require with shallow burial hidden digging with the use of, and there is ground adaptability difference in shield-tunneling construction, and short distance construction advantage such as cannot play at the shortcoming.
Summary of the invention
The technical problem to be solved in the present invention is: provide a kind of construction method adopting prefabricated parts subway station, the method is simple, convenient, the stability in the large at station can be effectively improved, have and do not affect road traffic, construction safety is quick, and environmental pollution is little, can promote the advantages such as underground engineering industrialization.
Contrast prior art, technical scheme is as follows:
A kind of construction method adopting prefabricated parts subway station, the step of this construction method is as follows:
The first step: the periphery of design profile carries out water stop curtain structure construction AT STATION, and carries out dewatering construction;
Second step: the design structure according to station, constructs prefabricated pile to designed elevation along the bearing of trend planning to build station;
3rd step: at trackside excavating shaft, transverse passage-way of constructing in vertical shaft is to station section, and section surrounding soil is carried out strengthening construction;
4th step: carry out section and top bar soil excavation, the lateral soil body between adjacent campshed is carried out first lining cutting simultaneously;After being excavated to plate elevation location, assembled prefabricated crown and framed side wallboard, and cast-in-place top longeron;The interim horizontal support of horizontally set first between the prefabricated pile of both sides simultaneously;
5th step: carry out section and get out of a predicament or an embarrassing situation soil excavation, carries out first lining cutting, assembled prefabricated inverted arch and framed side wallboard simultaneously to the lateral soil body between adjacent campshed, and cast-in-place middle longeron and bottom girder;The interim horizontal support of horizontally set second between the prefabricated pile of both sides simultaneously;
6th step: after prefabricated components have been constructed, interim horizontal support is removed in segmentation, and the inside stand template of framed side wallboard, frame steel reinforcement cage between stake, carry out cast-in-place side wall construction simultaneously;
7th step: harden in assembly structure;Then according to station spatial design requirement, remove interim prefabricated pile, form station overall structure.
Improving further as the present invention, interim horizontal support is round steel pipe, I-steel or channel-section steel.The horizontal support adopting this structure has stronger toughness and bending strength, it is possible to playing the effect that well auxiliary supports, be effectively increased the stability in the large of supporting construction, safety coefficient is higher, and stability is higher.
Improving further as the present invention, described interim prefabricated pile adopts Section-steel Piles or steel reinforced concrete built pile, and all the other are reinforced concrete pile.Adopting Section-steel Piles or steel reinforced concrete built pile to have good support strength as interim prefabricated pile, the prefabricated pile of this structure can also facilitate and removes when not in use simultaneously, time saving and energy saving, compares peopleization;And adopt reinforced concrete pile to have stronger support strength as permanent support body, it is not easy to and collapse, safety and stability.
Improve further as the present invention, before cast-in-place concrete construction, first framed side wallboard is carried out dabbing process, when building, make formation iterative structure between concrete and framed side wallboard.The benefit adopting this kind of technique is: is conducive to concrete to condense as a whole with framed side wallboard, improves the bond strength of concrete and framed side wallboard, enhance the stability in the large of station structure, more safety and stablizing.
Improve further as the present invention, equal reserved steel bar connector or joint bar on described prefabricated crown, prefabricated pile and prefabricated inverted arch, and be connected, by this reinforcing bar connector or joint bar, the entirety forming common stress with the steel reinforcement cage of cast-in-place side wall.The benefit adopting this kind of technique is: enables prefabricated crown, prefabricated pile and prefabricated inverted arch and side wall to effectively become one, improves the stability in the large of station structure, more safety and stable.
Improving further as the present invention, carry out pile grouting, boring filled by plain concrete, repairs road surface.The benefit of this kind of technique: can prefabricated pile effectively be reinforced, improves the stability of prefabricated pile, and safety is with stable more;In time road surface is repaired simultaneously, will not road pavement traffic impact.
Improving further as the present invention, described prefabricated pile is provided with two-way bracket and elongated floor at corresponding elevation location place.The installation of plate and inverted arch in two-way bracket convenience is set, elongated floor is set and facilitates the installation of framed side wallboard to fix, convenient and hommization.
Contrast prior art, the invention has the beneficial effects as follows:
(1) construction method of the present invention adopts splicing prefabricated components, it is achieved that the industrialization of underground station construction, and the design and construction for underground station provide new thinking, has promoted the further development of underground engineering industrialization;
(2) construction method of the present invention is except To Construction of Silo, other construction operation all carries out in underground, neither affects road traffic, can reduce again the impact that neighbouring resident produces noise and vibration, construction simultaneously will not be subject to the restriction of terrestrial climate condition, is conducive to the reduction of erection time.
(3) construction method of the present invention adopts splicing prefabricated components, and construction environment is good, and the labor intensity of workman is low.
(4) construction method of the present invention is simple, convenient, it is easy to construction, it is possible to be effectively improved bulk strength and the stability of subway station, be effectively increased the service life at station.
Accompanying drawing explanation
Fig. 1 is the station structure schematic diagram of the embodiment of the present invention;
Fig. 2 is the structural representation of station section in step 2 of the present invention;
Fig. 3 is the structural representation of station section in step 4 of the present invention;
Fig. 4 is the structural representation of station section in step 5 of the present invention;
Fig. 5 is the structural representation of station section in step 7 of the present invention;
In figure: 1, water-stop curtain, 2, prefabricated pile, 3, two-way bracket, 4, elongated floor, 5, vertical shaft, 6, transverse passage-way, 7, crown, 8, top longeron, 9, middle longeron, 10, bottom girder, 11, inverted arch, 12, in harden structure, the 13, first interim horizontal support, the 14, second interim horizontal support.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention will be further described in detail.
The invention provides a kind of construction method adopting prefabricated parts subway station, specifically comprising the following steps that of the method
The first step: as it is shown in figure 1, the designing requirement according to station, carry out water-stop curtain 1 in the periphery of the design profile planning to build station and construct, and carry out dewatering construction.
(1) water-stop curtain 1 is determined according to geology and hydrologic condition, can be selected for high-pressure rotary-spray pile water stopping curtain, it is possible to select cement mixing method or compaction grouting measure;
(2) dewatering construction, adopts the measure of recharging accordingly to guarantee the safety of building according to the requirement of peripheral ground building.
Second step: as in figure 2 it is shown, the design structure according to station, along bearing of trend construction prefabricated pile 2 to the designed elevation planning to build station.
It specifically comprises the following steps that and utilizes vehicle flowrate less period at night, construction prefabricated pile 2 to designed elevation on the bearing of trend plan to build Metro Station Structure, and carry out pile grouting, boring filled by plain concrete, repairing road surface, the insertion depth of stake meets design bearing capacity and anti-floating requirement.Carrying out pile grouting, plain concrete is filled and is holed, and prefabricated pile can be done further reinforcing by this kind of technique, it is ensured that the stability of prepackage stake, and safety coefficient is higher, it is possible to improve the stability in the large of station structure further, and safety is with stable more.Repair road surface in time, eliminate the impact that construction road pavement traffic causes, convenient and hommization.
Described subway station can be double-layer double-span structure, it is also possible to for multilamellar multispan structure, specific constructive form need to be determined according to the design scale at station and purposes, and the transverse row of prefabricated pile is several to be determined across number according to station.It should be noted that in the present embodiment, this subway station is double-layer double-span structure.
According to station spatial design requirement, needing the interim prefabricated pile removed to adopt Section-steel Piles or steel reinforced concrete built pile in the later stage, all the other are reinforced concrete pile.Adopting Section-steel Piles or steel reinforced concrete built pile to have good support strength as interim prefabricated pile, the prefabricated pile of this structure can also facilitate and removes when not in use simultaneously, time saving and energy saving, compares peopleization;And adopt reinforced concrete pile to have stronger support strength as permanent support body, it is not easy to and collapse, safety and stability.
Prefabricated pile is being provided with two-way bracket 3 and elongated floor 4 at corresponding elevation location.The installation of plate and inverted arch in two-way bracket convenience is set, elongated floor is set and facilitates the installation of framed side wallboard to fix, convenient and hommization.
3rd step: at trackside excavating shaft 5, transverse passage-way 6 to station section of constructing in vertical shaft 5, and section surrounding soil is carried out strengthening construction.It specifically comprises the following steps that the position excavating shaft 5 not affecting normal traffic at trackside transverse passage-way 6 to station section of constructing, and section surrounding soil is carried out strengthening construction, it is to avoid occur that retention of excessive fluid and soil cave in phenomenon during the tenth day of lunar month excavation.
4th step: top bar soil excavation as it is shown on figure 3, carry out section, the lateral soil body between adjacent campshed is carried out first lining cutting simultaneously, after being excavated to middle plate elevation location, assembled prefabricated crown 7 and framed side wallboard, and cast-in-place top longeron 8.In order to improve the stability in the large of supporting construction, the interim horizontal support 13 of horizontally set first between the prefabricated pile of both sides simultaneously.Prefabricated crown and prefabricated pile are attached by hand hole, and prefabricated framed side wallboard is connected with the elongated floor on prefabricated pile by bolt, and prefabricated components junction is uniform sets waterproof material;Top longeron is bolted with prefabricated pile.
5th step: as shown in Figure 4, carries out section and gets out of a predicament or an embarrassing situation soil excavation, and the lateral soil body between adjacent campshed carries out first lining cutting, assembled prefabricated inverted arch 11 and framed side wallboard simultaneously, and cast-in-place middle longeron 9 and bottom girder 10;In order to improve the stability in the large of supporting construction further, the interim horizontal support 14 of horizontally set second between the prefabricated pile of both sides simultaneously;Prefabricated inverted arch and prefabricated pile are attached by bolt, and prefabricated framed side wallboard is connected with the usual floor on prefabricated pile by bolt, and waterproof material is laid in prefabricated components junction.Described first interim horizontal support and the second interim horizontal support are round steel pipe, I-steel or channel-section steel.
6th step: after prefabricated components have been constructed, interim horizontal support is removed in segmentation, and the inside stand template of framed side wallboard, frame steel reinforcement cage between stake, carry out cast-in-place side wall construction simultaneously.
Before it specifically comprises the following steps that cast-in-place concrete construction, first framed side wallboard is carried out dabbing process, when building, make formation iterative structure between concrete and framed side wallboard.The benefit adopting this kind of technique is: is conducive to concrete to condense as a whole with framed side wallboard, improves the bond strength of concrete and framed side wallboard, enhance the stability in the large of station structure, more safety and stablizing;Equal reserved steel bar connector or joint bar on described prefabricated crown, prefabricated pile and prefabricated inverted arch, and it is connected, by this reinforcing bar connector or joint bar, the entirety forming common stress with the steel reinforcement cage of cast-in-place side wall.The benefit adopting this kind of technique is: enables prefabricated crown, prefabricated pile and prefabricated inverted arch and side wall to effectively become one, improves the stability in the large of station structure, more safety and stable.The interim horizontal support removed includes the first interim horizontal support 13 and the second interim horizontal support 14
7th step: as it is shown in figure 5, the structure 12 that hardens in assembly on the two-way bracket 3 of prefabricated pile;Then according to station spatial design requirement, remove interim prefabricated pile, form station overall structure.
In sum, the invention has the beneficial effects as follows:
(1) construction method of the present invention adopts splicing prefabricated components substantially, it is achieved that the industrialization of underground station construction, and the design and construction for underground station provide new thinking, has promoted the further development of underground engineering industrialization;
(2) construction method of the present invention is except To Construction of Silo, other construction operation all carries out in underground, neither affects road traffic, can reduce again the impact that neighbouring resident produces noise and vibration, construction simultaneously will not be subject to the restriction of terrestrial climate condition, is conducive to the reduction of erection time.
(3) construction method of the present invention adopts splicing prefabricated components, and construction environment is good, and the labor intensity of workman is low.
(4) construction method of the present invention is simple, convenient, it is easy to construction, it is possible to be effectively improved bulk strength and the stability of subway station, be effectively increased the service life at station.
It should be noted that the present embodiment is the most preferred embodiment of the present invention, being not the restriction that the present invention makees other form, any those skilled in the art of belonging to all technology contents possibly also with the disclosure above are changed or are modified as the equivalent implementations of equivalent variations.But under every premise without departing from the technology of the present invention principle, according to any simple modification, equivalent variations and remodeling that embodiment of above is made by the technical spirit of the present invention, all should fall into invention patent protection scope.

Claims (7)

1. the construction method adopting prefabricated parts subway station, it is characterised in that: the step of this construction method is as follows:
The first step: the periphery of design profile carries out water stop curtain structure construction AT STATION, and carries out dewatering construction;
Second step: the design structure according to station, constructs prefabricated pile to designed elevation along the bearing of trend planning to build station;
3rd step: at trackside excavating shaft, transverse passage-way of constructing in vertical shaft is to station section, and section surrounding soil is carried out strengthening construction;
4th step: carry out section and top bar soil excavation, the lateral soil body between adjacent campshed is carried out first lining cutting simultaneously;After being excavated to plate elevation location, assembled prefabricated crown and framed side wallboard, and cast-in-place top longeron;The interim horizontal support of horizontally set first between the prefabricated pile of both sides simultaneously;
5th step: carry out section and get out of a predicament or an embarrassing situation soil excavation, carries out first lining cutting, assembled prefabricated inverted arch and framed side wallboard simultaneously to the lateral soil body between adjacent campshed, and cast-in-place middle longeron and bottom girder;The interim horizontal support of horizontally set second between the prefabricated pile of both sides simultaneously;
6th step: after prefabricated components have been constructed, interim horizontal support is removed in segmentation, and the inside stand template of framed side wallboard, frame steel reinforcement cage between stake, carry out cast-in-place side wall construction simultaneously;
7th step: harden in assembly structure;Then according to station spatial design requirement, remove interim prefabricated pile, form station overall structure.
2. the construction method of employing prefabricated parts subway station according to claim 1, it is characterised in that: interim horizontal support is round steel pipe, I-steel or channel-section steel.
3. the construction method of employing prefabricated parts subway station according to claim 1 and 2, it is characterised in that: described interim prefabricated pile adopts Section-steel Piles or steel reinforced concrete built pile, and all the other are reinforced concrete pile.
4. the construction method of employing prefabricated parts subway station according to claim 1 and 2, it is characterized in that: described step 6 includes: before cast-in-place concrete construction, first framed side wallboard is carried out dabbing process, when building, make formation iterative structure between concrete and framed side wallboard.
5. the construction method of employing prefabricated parts subway station according to claim 1 and 2, it is characterized in that: equal reserved steel bar connector or joint bar on described prefabricated crown, prefabricated pile and prefabricated inverted arch, and be connected, by this reinforcing bar connector or joint bar, the entirety forming common stress with the steel reinforcement cage of cast-in-place side wall.
6. the construction method of employing prefabricated parts subway station according to claim 1 and 2, it is characterised in that: described step 2 includes: carry out pile grouting, and boring filled by plain concrete, repairs road surface.
7. the construction method of employing prefabricated parts subway station according to claim 1 and 2, it is characterised in that: described prefabricated pile is provided with two-way bracket and elongated floor at corresponding elevation location place.
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Cited By (10)

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Publication number Priority date Publication date Assignee Title
CN106703828A (en) * 2017-01-22 2017-05-24 济南轨道交通集团有限公司 The construction method of building subway station with fabricated lining combination PBA
CN106812542A (en) * 2017-01-22 2017-06-09 济南轨道交通集团有限公司 A kind of use prefabricated components and preceding slotting shield build the construction method of subway station
CN106869172A (en) * 2017-04-01 2017-06-20 中交第二航务工程局有限公司 In-situ deposited prefabricated split-mounting type subway underground station construction method
CN107476341A (en) * 2017-08-21 2017-12-15 中铁六局集团有限公司 Using cast in place and precast construction subway station prefabricated board assembling method
CN107630707A (en) * 2017-10-26 2018-01-26 上海市隧道工程轨道交通设计研究院 A kind of single arch Station section arrangement and its application process
CN108020450A (en) * 2017-11-10 2018-05-11 北京工业大学 A kind of assembled integral subway station model structure and preparation method thereof
CN108194105A (en) * 2018-01-31 2018-06-22 中铁五局集团有限公司 A kind of heavy grade underground station bilayer channel step lining construction method and its structure
CN109736840A (en) * 2018-12-30 2019-05-10 中铁隧道局集团有限公司 A kind of Tunnel Second Lining Construction new method
CN114060062A (en) * 2021-12-08 2022-02-18 刁志刚 Construction method for side hole primary support buckling arch in construction of underground excavated station by using hole-pile method
CN114934543A (en) * 2022-06-07 2022-08-23 广州地铁设计研究院股份有限公司 Station transfer node structure and construction method thereof

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106812542A (en) * 2017-01-22 2017-06-09 济南轨道交通集团有限公司 A kind of use prefabricated components and preceding slotting shield build the construction method of subway station
CN106703828A (en) * 2017-01-22 2017-05-24 济南轨道交通集团有限公司 The construction method of building subway station with fabricated lining combination PBA
CN106812542B (en) * 2017-01-22 2019-11-22 济南轨道交通集团有限公司 It is a kind of using prefabricated components and preceding slotting shield builds the construction method of subway station
CN106703828B (en) * 2017-01-22 2019-06-21 济南轨道交通集团有限公司 The construction method of subway station is built using prefabricated assembled lining cutting combination PBA
CN106869172B (en) * 2017-04-01 2019-01-04 中交第二航务工程局有限公司 In-situ deposited prefabricated split-mounting type subway underground station construction method
CN106869172A (en) * 2017-04-01 2017-06-20 中交第二航务工程局有限公司 In-situ deposited prefabricated split-mounting type subway underground station construction method
CN107476341A (en) * 2017-08-21 2017-12-15 中铁六局集团有限公司 Using cast in place and precast construction subway station prefabricated board assembling method
CN107630707A (en) * 2017-10-26 2018-01-26 上海市隧道工程轨道交通设计研究院 A kind of single arch Station section arrangement and its application process
CN108020450A (en) * 2017-11-10 2018-05-11 北京工业大学 A kind of assembled integral subway station model structure and preparation method thereof
CN108020450B (en) * 2017-11-10 2020-03-13 北京工业大学 Assembled integral type subway station model structure and manufacturing method thereof
CN108194105A (en) * 2018-01-31 2018-06-22 中铁五局集团有限公司 A kind of heavy grade underground station bilayer channel step lining construction method and its structure
CN109736840A (en) * 2018-12-30 2019-05-10 中铁隧道局集团有限公司 A kind of Tunnel Second Lining Construction new method
CN114060062A (en) * 2021-12-08 2022-02-18 刁志刚 Construction method for side hole primary support buckling arch in construction of underground excavated station by using hole-pile method
CN114934543A (en) * 2022-06-07 2022-08-23 广州地铁设计研究院股份有限公司 Station transfer node structure and construction method thereof

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