CN105625184A - Subway station building method using bridge and station combined building mode - Google Patents
Subway station building method using bridge and station combined building mode Download PDFInfo
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- CN105625184A CN105625184A CN201410597243.8A CN201410597243A CN105625184A CN 105625184 A CN105625184 A CN 105625184A CN 201410597243 A CN201410597243 A CN 201410597243A CN 105625184 A CN105625184 A CN 105625184A
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Abstract
The invention provides a subway station building method using a bridge and station combined building mode. The subway station building method using the bridge and station combined building mode comprises the following steps of first building a bridge pier which is also used as a subway station structural column; building a bridge on the bridge pier; and then beginning to build a subway station top slab and excavate a foundation pit; and finally, building a subway station bottom slab, a foundation pit fender post and the rest structures. According to the invention, small area occupied by a construction site and small influence on ground transportation in the whole construction process are ensured; and four walls of the whole subway station are stably stressed in the later stage, the stress cannot make a big difference, and the stability and safety of the subway station are enhanced.
Description
Technical field
The present invention relates to the construction method of a kind of subway station, build the subway station construction method of pattern particularly to a kind of bridge, station jointly.
Background technology
Expressway around city development now, traffic problems growing tension, along with the quickening of urbanization process, each big city of China has started to build on a large scale subway, it is commonly known that, subway station is generally arranged across road cross, to attract more passenger flow, each big city is the traffic above-ground alleviating section, subway place simultaneously, also builds bridge at same crossing gradually, so often lead to subway station be associated with bridge structure, the situation that even both planes are completely superposed. At present, common processing method is, first build subway station in underground, subway station structural column and column footing thereof also serve as bridge pier, build reserved bridge bearing platform structure and pier shaft during subway station, then recover Local Road Surface traffic, then build residue pier shaft structure and bridge superstructure on the ground, until Practical Completion. Such build mode, the traffic impact in section, subway station place is big, of long duration, it is unfavorable for the trip of nearby residents; For subway station structure, subway station four wall later stage stress changes greatly, and subway station top board and subway station base plate are both needed to special handling, increases difficulty, cost and the time built.
Summary of the invention
The invention aims to overcome the deficiencies in the prior art, it is provided that the subway station construction method of pattern is built at Yi Zhongqiao, station jointly, make subway station stability and safety high.
In order to achieve the above object, the present invention is by the following technical solutions:
The subway station construction method of pattern built jointly by a kind of bridge, station, comprises the following steps:
The subway station construction method of pattern built jointly by a kind of bridge, station, comprises the following steps:
A, determine the bridge pier doubling as subway station structural column build position;
B, building bridge pier, construct a bridge main body on bridge pier; Described bridge pier from top to bottom includes bridge pier, bridge bearing platform and main cylinders, and the lower end of described bridge pier, bridge bearing platform and main cylinders are in underground;
C, build be located at subway station foundation ditch surrounding for keep off soil foundation pit enclosure stake;
D, being excavated according to predetermined planning by the ground layer soil body on the region of predetermined construction subway station, expose the basal plane building subway station top board, bridge bearing platform and main cylinders upper end are exposed to the external world simultaneously; Basal plane is built the subway station top board being connected with main cylinders upper end; Described foundation pit enclosure stake contact subway station top board;
E, above subway station top board the landfill soil body, at subway station top board area below Metro Excavation station foundation ditch;
F, subway station excavation of foundation pit, to default absolute altitude, build all the other structures of subway station base plate and the subway station being connected with main cylinders.
As preferably, described main cylinders from top to bottom includes steel pipe cylinder and boring cylinder; In Step d, steel pipe cylinder upper end is exposed to the external world, builds the subway station top board being connected with steel pipe cylinder upper end on basal plane; In step e, the main cylinders part being in subway station foundation ditch is steel pipe cylinder; In f step, build the subway station base plate being connected with steel pipe cylinder.
As preferably, described steel pipe cylinder includes retaining wall layer, Cast-in-situ Piles in Sand-filling soil layer and steel core concrete column from outside to inside.
As preferably, in Step d, retaining wall layer and the Cast-in-situ Piles in Sand-filling soil layer of steel pipe cylinder upper end are removed.
As preferably, ground layer soil body be from top to bottom distributed as miscellaneous fill layer, plain fill layer, loose boulder bed, in close boulder bed, layer of sand in first, the first closely knit boulder bed, subway station is built in the position of layer of sand and the second closely knit boulder bed in second.
As preferably, described subway station foundation ditch be mostly in loose boulder bed, in close boulder bed, the layer of sand place degree of depth in first.
As preferably, in b step, the lower end of described bridge pier and bridge bearing platform are in miscellaneous fill layer, described steel pipe cylinder be in plain fill layer, loose boulder bed, in close boulder bed, layer of sand and the first closely knit boulder bed in first, described boring cylinder is in the first closely knit boulder bed, layer of sand and the second closely knit boulder bed in second.
As preferably, in step e, retaining wall layer and the Cast-in-situ Piles in Sand-filling soil layer of the steel pipe cylinder being in subway station foundation ditch are removed.
As preferably, the position that described subway station top board and subway station base plate are connected with main cylinders is built and is strengthened platform into cylindricality.
As preferably, in step e, adopt along practice Metro Excavation station foundation ditch.
Compared with prior art, the method have the advantages that
Construction method construction site of the present invention is taken up an area little, and the impact of traffic above-ground is little; Whole subway station four wall later stage stability under loading, stress will not produce huge change, carries and does subway station stability and safety. The present invention is while subway station is constructed, and bridge has been built complete, multilevel traffic can be adopted to replace original ground traffic, facilitate the trip of neighbouring resident, transport solution problem. The major part of bridge pier is the steel core concrete column of the steel pipe cylinder that can bear huge axle power, the bearing capacity of steel core concrete column is high, and cross section is little, easy construction, enable subway station construction method of the present invention to be smoothed out, and ensure the building safety of subway station. The structural system of subway station top board, steel pipe cylinder and foundation pit enclosure stake composition improves the stability of bridge and subway station, and subway station top board constrains the in-plane displancement of bridge bearing platform, steel pipe cylinder and boring cylinder, well controls the vertical displacement of bridge bearing platform; Meanwhile, residing for subway station base plate, stratum is Compact sandy-pebble soil layer, is further ensured that structural stability and the safety of subway station.
Accompanying drawing explanation
The b step of the subway station construction method of pattern built jointly by Fig. 1 bridge of the present invention, station;
The step c of the subway station construction method of pattern built jointly by Fig. 2 bridge of the present invention, station;
The Step d of the subway station construction method of pattern built jointly by Fig. 3 bridge of the present invention, station;
The step e of the subway station construction method of pattern built jointly by Fig. 4 bridge of the present invention, station.
In figure:
11 steel core concrete columns; 12 Cast-in-situ Piles in Sand-filling soil layers; 13 retaining wall layers; 21 subway station top boards; 22 subway station base plates; 31 bridge piers; 32 bridge bearing platforms; 33 steel pipe cylinders; 34 boring cylinders; A miscellaneous fill layer; B plain fill layer; The loose boulder bed of C; Close boulder bed in D; Layer of sand in E first; The closely knit boulder bed of F first; Layer of sand in G second; The closely knit boulder bed of H second.
In conjunction with accompanying drawing, the invention will be further described with specific embodiment.
Detailed description of the invention
As shown in Figures 1 to 4, build the subway station construction method of pattern for a kind of bridge of the present invention, station jointly, comprise the following steps successively:
Wherein, build the ground layer soil body of the position of subway station be from top to bottom distributed as miscellaneous fill layer A, plain fill layer B, loose boulder bed C, in close boulder bed D, layer of sand E in first, the first closely knit boulder bed F, layer of sand G and the second closely knit boulder bed H in second. In figure, Z represents ground.
A, determine the bridge pier doubling as subway station structural column build position. Subway station is designed docking with bridge, it is determined that bridge supports the bonding station (that namely determines bridge pier builds position) of stake and subway station station structure post, Bridge Design and station architecture and designs based on this.
B, building bridge pier, construct a bridge main body on bridge pier; Bridge pier from top to bottom includes bridge pier 31, bridge bearing platform 32, steel pipe cylinder 33 and boring cylinder 34, and steel pipe cylinder 33 includes retaining wall layer 13, Cast-in-situ Piles in Sand-filling soil layer 12 and steel core concrete column 11 from outside to inside; The lower end of bridge pier 31, bridge bearing platform 32, steel pipe cylinder 33 and boring cylinder 34 are in underground. Steel pipe cylinder 33 and boring cylinder 34 form main cylinders. The cylinder that main cylinders can also be met subway station construction by other forms, and it is preferred embodiment that steel pipe cylinder 33 and boring cylinder 34 form main cylinders.
Wherein, the lower end of bridge pier 31 and bridge bearing platform 32 are in miscellaneous fill layer A, steel pipe cylinder 33 be in plain fill layer B, loose boulder bed C, in close boulder bed D, layer of sand E and the first closely knit boulder bed F in first, boring cylinder 34 is in the first closely knit boulder bed F, layer of sand G and the second closely knit boulder bed H in second.
C, build be located at subway station foundation ditch surrounding for keep off soil foundation pit enclosure stake
D, the ground layer soil body on the region of predetermined construction subway station is excavated according to predetermined planning, expose the basal plane building subway station top board 21, the lower end of bridge pier 31, bridge bearing platform 32 and steel pipe cylinder 33 upper end are exposed to the external world simultaneously, and retaining wall layer 13 and the Cast-in-situ Piles in Sand-filling soil layer 12 of steel pipe cylinder 33 upper end are removed. Building the subway station top board 21 being connected with steel pipe cylinder 33 upper end on basal plane, the position that subway station top board 21 is connected with steel pipe cylinder 33 is built and is strengthened platform into cylindricality. Foundation pit enclosure stake contact subway station top board 21
E, above subway station top board 21 the landfill soil body (Y represents the ground recovered after the landfill soil body), adopt along practice Metro Excavation station foundation ditch in subway station top board 21 area below; The bridge pier part being in subway station foundation ditch is steel pipe cylinder 33, and retaining wall layer 13 and the Cast-in-situ Piles in Sand-filling soil layer 12 of the steel pipe cylinder 33 being in subway station foundation ditch are removed. Subway station foundation ditch be mostly in loose boulder bed C, in the layer of sand E place degree of depth in close boulder bed D and first.
F, subway station excavation of foundation pit, to default absolute altitude, build all the other structures of subway station the base plate 22 and subway station being connected with steel pipe cylinder 33. The position that subway station base plate 22 is connected with steel pipe cylinder 33 is built and is strengthened platform into cylindricality.
Such as Fig. 3 and above it can be seen that bridge pier is both as the support stake of bridge, the bridge pier 31 of bridge pier, bridge bearing platform 32 are as a part of supporting bridge of bridge; Bridge pier also serves as subway station structural column and supports this building body of subway station, and is connected with each other with subway station top board 21, and forms structural system with foundation pit enclosure stake, it is ensured that the steadiness of whole subway station and safety.
In step e, the retaining wall layer 13 of the steel pipe cylinder 33 being in subway station foundation ditch and Cast-in-situ Piles in Sand-filling soil layer 12 are removed, it is because steel core concrete column 11 and is only passive major part, so being taken up space of steel pipe cylinder 33 can be made to diminish retaining wall layer 13 and Cast-in-situ Piles in Sand-filling soil layer 12, the space within subway station is made to become big.
In construction method of the present invention, the major part of bridge pier is the steel core concrete column 11 of the steel pipe cylinder 33 that can bear huge axle power, when Metro Excavation station foundation ditch, retaining wall layer 13 and the Cast-in-situ Piles in Sand-filling soil layer 12 of the steel pipe cylinder 33 being in subway station foundation ditch are removed, now namely steel core concrete column 11 supports the main part of whole subway station, the bearing capacity of steel core concrete column 11 is high, cross section is little, easy construction, enable subway station construction method of the present invention to be smoothed out, and ensure the building safety of subway station. Subway station top board 21 is connected with steel pipe cylinder 33, foundation pit enclosure stake contact subway station top board 21 (namely subway station top board 21 is placed in foundation pit enclosure stake) constitutes the structural system of the stability improving bridge and subway station, subway station top board 21 constrains the in-plane displancement of bridge bearing platform 32, steel pipe cylinder 33 and boring cylinder 34, well control the vertical displacement of bridge bearing platform 32; The part that subway station top board 21 and subway station base plate 22 are connected with steel pipe cylinder 33 is built and is strengthened platform into cylindricality, connects more firm, makes subway station top board 21 more reliable with the structural system of steel pipe cylinder 33 composition. Meanwhile, residing for subway station base plate 22, stratum is Compact sandy-pebble soil layer, is further ensured that structural stability and the safety of subway station. Construction method of the present invention, owing to building subway station after its first bridge construction, bridge construction construction site in period is taken up an area little, even if building subway top board, to take less blocked road influence time not long, and when building inside subway station, only need to stay the entrance of several Construction traffic, do not need to close on a large scale ground traffic route, so construction method of the present invention is little on the impact of traffic above-ground. Owing to being first built bridge and subway station top board 21 and subway station structural column are connected, carry out the follow-up work of building a station such as Metro Excavation station foundation ditch again, so whole subway station four wall later stage stability under loading, stress will not produce huge change, carries and does subway station stability and safety.
The invention is not limited in above-mentioned embodiment, if to the various changes of the present invention or modification without departing from the spirit and scope of the present invention, if these change within claim and the equivalent technologies scope belonging to the present invention with modification, then the present invention is also intended to comprise these changes and variation.
Claims (10)
1. the subway station construction method of pattern is built at a bridge, station jointly, it is characterised in that comprise the following steps:
A, determine the bridge pier doubling as subway station structural column build position;
B, building bridge pier, construct a bridge main body on bridge pier; Described bridge pier from top to bottom includes bridge pier, bridge bearing platform and main cylinders, and the lower end of described bridge pier, bridge bearing platform and main cylinders are in underground;
C, build be located at subway station foundation ditch surrounding for keep off soil foundation pit enclosure stake;
D, being excavated according to predetermined planning by the ground layer soil body on the region of predetermined construction subway station, expose the basal plane building subway station top board, bridge bearing platform and main cylinders upper end are exposed to the external world simultaneously; Basal plane is built the subway station top board being connected with main cylinders upper end; Described foundation pit enclosure stake contact subway station top board;
E, above subway station top board the landfill soil body, at subway station top board area below Metro Excavation station foundation ditch;
F, subway station excavation of foundation pit, to default absolute altitude, build all the other structures of subway station base plate and the subway station being connected with main cylinders.
2. the subway station construction method of pattern is built at bridge according to claim 1, station jointly, it is characterised in that described main cylinders from top to bottom includes steel pipe cylinder and boring cylinder; In Step d, steel pipe cylinder upper end is exposed to the external world, builds the subway station top board being connected with steel pipe cylinder upper end on basal plane; In step e, the main cylinders part being in subway station foundation ditch is steel pipe cylinder; In f step, build the subway station base plate being connected with steel pipe cylinder.
3. the subway station construction method of pattern is built at bridge according to claim 2, station jointly, it is characterised in that described steel pipe cylinder includes retaining wall layer, Cast-in-situ Piles in Sand-filling soil layer and steel core concrete column from outside to inside.
4. the subway station construction method of pattern is built at bridge according to claim 2, station jointly, it is characterised in that in Step d, retaining wall layer and the Cast-in-situ Piles in Sand-filling soil layer of steel pipe cylinder upper end are removed.
5. the subway station construction method of pattern is built at bridge according to claim 2, station jointly, it is characterized in that, ground layer soil body be from top to bottom distributed as miscellaneous fill layer, plain fill layer, loose boulder bed, in close boulder bed, layer of sand in first, the first closely knit boulder bed, subway station is built in the position of layer of sand and the second closely knit boulder bed in second.
6. the subway station construction method of pattern is built at bridge according to claim 5, station jointly, it is characterised in that described subway station foundation ditch be mostly in loose boulder bed, in close boulder bed, the layer of sand place degree of depth in first.
7. the subway station construction method of pattern is built at bridge according to claim 5, station jointly, it is characterized in that, in b step, the lower end of described bridge pier and bridge bearing platform are in miscellaneous fill layer, described steel pipe cylinder be in plain fill layer, loose boulder bed, in close boulder bed, layer of sand and the first closely knit boulder bed in first, described boring cylinder is in the first closely knit boulder bed, layer of sand and the second closely knit boulder bed in second.
8. the subway station construction method of pattern is built at bridge according to claim 2, station jointly, it is characterised in that in step e, retaining wall layer and the Cast-in-situ Piles in Sand-filling soil layer of the steel pipe cylinder being in subway station foundation ditch are removed.
9. the subway station construction method of pattern is built at bridge according to claim 1, station jointly, it is characterised in that the position that described subway station top board and subway station base plate are connected with main cylinders is built and strengthened platform into cylindricality.
10. the subway station construction method of pattern is built at bridge according to claim 1, station jointly, it is characterised in that in step e, adopts along practice Metro Excavation station foundation ditch.
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| CN201410597243.8A CN105625184B (en) | 2014-10-30 | 2014-10-30 | Bridge, station build the subway station construction method of pattern jointly |
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| CN201410597243.8A CN105625184B (en) | 2014-10-30 | 2014-10-30 | Bridge, station build the subway station construction method of pattern jointly |
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| CN108130918A (en) * | 2018-02-09 | 2018-06-08 | 深圳市市政设计研究院有限公司 | A kind of pier sheet-pile engaging portion structure |
| CN111074707A (en) * | 2020-01-02 | 2020-04-28 | 深圳市综合交通设计研究院有限公司 | Bridge and tunnel co-construction structure and construction method thereof |
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