CN109706967A - The construction method of external hanging type wind pavilion - Google Patents
The construction method of external hanging type wind pavilion Download PDFInfo
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- CN109706967A CN109706967A CN201910127989.5A CN201910127989A CN109706967A CN 109706967 A CN109706967 A CN 109706967A CN 201910127989 A CN201910127989 A CN 201910127989A CN 109706967 A CN109706967 A CN 109706967A
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- wind pavilion
- foundation pit
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- dewatering well
- pavilion
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- 238000010276 construction Methods 0.000 title claims abstract description 36
- 238000009412 basement excavation Methods 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000012407 engineering method Methods 0.000 claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 12
- 239000010959 steel Substances 0.000 claims abstract description 12
- 238000000465 moulding Methods 0.000 claims abstract description 9
- 238000009434 installation Methods 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 210000000476 body water Anatomy 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Abstract
A kind of construction method of the present invention about external hanging type wind pavilion, outer dewatering well in hole is arranged far from main body foundation pit side in the wind pavilion foundation pit, dewatering well in hole is installed in the main body foundation pit of the other side, it is turned in main body and bracing members together is set between beam and engineering method dowel crown beam, wind pavilion structure side wall is poured using large steel moulding plate.It is an advantage of the invention that reducing the Water And Earth Pressures resultant force for acting on and going along with sb. to guard him in engineering method stake by outer dewatering well in hole；It stays in main body foundation pit and in wind pavilion foundation pit join domain and sets dewatering well, reduce main body Water Level in Foundation Pit rise bring percolating water risk；Inner support supporting point is adjusted from former main body fender post crown beam to main body and turns over beam, abolishing for former main body fender post and crown beam can be carried out with earth excavation, do mechanization operation may be implemented to accelerate speed of application, avoid the inconvenience for hanging out pile section by post-cast strip；The rapid construction for realizing structure side wall is conducive to form fender post lateral support effect, reduces foundation pit deformation risk.
Description
Technical field
The present invention relates to a kind of civil construction method more particularly to a kind of construction methods of external hanging type wind pavilion.
Background technique
Metro Station Structure is generally divided into station main structure and accessory structure, wherein accessory structure be generally divided into wind pavilion and
Two class of entrance needs just to need first to apply at this time in the longitudinally parallel setting in main body foundation pit side when wind pavilion uses external hanging type
Do wind pavilion foundation pit carry out again wind pavilion structure return build.External hanging type wind pavilion is generally basement one structure, and excavation of foundation pit depth is general
In 10m or so, width comprehensively considers economy and safety majority in 6~10m, design using engineering method stake building enclosure, together
Shi Shixian sealing effect, is typically provided with twice inner support, and support is respectively arranged at that engineering method stake is gone along with sb. to guard him and former main structure is gone along with sb. to guard him
Crown beam and pile body between.In water-rich sand layer ground, the resultant force that the load that engineering method stake is gone along with sb. to guard him is Water And Earth Pressures is acted on, by
Small in level of ground water height, active earth pressure, hydraulic pressure load will account for very at high proportion.
Branch will be lost by needing to cut the inner support that original is gone along with sb. to guard him pile body, but is arranged at this time when wind pavilion structure progress structure is returned and built
Support point, common way is to stay to set post-cast strip between wind pavilion structure and main structure in engineering, first carry out part backplane, side wall and
Returning for top plate is built, and as support is gradually removed in the construction of part-structure, is then cut pile body between post-cast strip and is hung out, finally carries out
Post-cast strip pours, and completes entire wind pavilion structure time and builds.Such arrangement and method for construction causes pile body to cut time-consuming since post-cast strip space is small
Work consuming and safety is poor, while structure construction seam is increased, easily lead to later period leakage problem.
Summary of the invention
In view of the problems of the above-mentioned prior art, the purpose of the present invention is to propose to a kind of construction parties of external hanging type wind pavilion
Method, mainly.
Invention broadly provides a kind of construction methods of external hanging type wind pavilion, comprising the following steps:
Interior dewatering well is cheated in setting: being set in main structure excavation of foundation pit forward position main body foundation pit and wind pavilion foundation pit join domain interval
Set dewatering well in hole；
Outer dewatering well in hole is set: outer dewatering well in hole being set far from the side of main body foundation pit in wind pavilion foundation pit；
Setting bracing members: it is turned in main body and sets up bracing members between beam and engineering method dowel crown beam；
It draining and excavates: opening in aforementioned hole after dewatering well and outer dewatering well in hole, earth excavation；
Pour wind pavilion structure: after the bottom plate, side wall and top plate that sequentially pour wind pavilion structure, completion of cutting off the water.
Preferably, the construction method of the external hanging type wind pavilion, in setting is cheated in dewatering well step, along main body foundation pit
Interior dewatering well is cheated according to the setting of the interval 30~35m with wind pavilion foundation pit join domain.
Preferably, the construction method of the external hanging type wind pavilion, in setting outer dewatering well in hole step, along wind pavilion foundation pit
Outer dewatering well in hole is arranged according to the interval 20~25m in longitudinal direction.
Preferably, the construction method of the external hanging type wind pavilion turns over beam for main body in setting bracing members step
The further settable support pier in absent region.
Preferably, the construction method of the external hanging type wind pavilion, in pouring wind pavilion configuration steps, the bottom of wind pavilion structure
Plate, need to be in the pre-buried dowel of bottom plate before being poured.
Preferably, the construction method of the external hanging type wind pavilion, in pouring wind pavilion configuration steps, the side of wind pavilion structure
Wall installs large steel moulding plate and tripod after construction waterproof and reinforcing bar, and anchors with pre-buried dowel.
Preferably, the construction method of the external hanging type wind pavilion, in pouring wind pavilion configuration steps, the top of wind pavilion structure
It needs to remove installation large steel moulding plate and tripod before plate construction, sets up falsework system and carry out pouring for wind pavilion structure roof.
The construction method of external hanging type wind pavilion provided by the present invention, advantages of the present invention includes:
1, the present invention, which reduces to act on by outer dewatering well in hole, goes along with sb. to guard him Water And Earth Pressures in engineering method stake with joint efforts, by inner support from
Twice are reduced to reduce the adverse effect that subsequent earth excavation and structure time are built in the support of setting second together.
2, the present invention sets dewatering well with staying in wind pavilion foundation pit join domain in main body foundation pit, reduces main body Water Level in Foundation Pit and returns
Rise bring percolating water risk.
3, the present invention, which adjusts inner support point to main body from former main body fender post crown beam, turns over beam, can be same with earth excavation
Abolishing for Shi Jinhang main body fender post and crown beam, may be implemented do mechanization operation to accelerate speed of application, avoids and pour after
Band hangs out the inconvenience of pile section.
4, no setting is required post-cast strip, reduction structure construction seam quantity, the risk of reduction later period percolating water；Realize structure side wall
Rapid construction, be conducive to fender post formed lateral support effect, reduce foundation pit deformation risk.
Detailed description of the invention
Fig. 1 is the arrangement schematic diagram of excavation pit of the present invention；
Fig. 2 is Hui Zhufeng pavilion structural schematic diagram of the present invention after excavation pit.
Primary clustering symbol description
Reserved 1 outer dewatering well in hole 2 of dewatering well
3 main body foundation pit enclosure stakes 4 are gone along with sb. to guard him in engineering method stake
5 bracing members 6 of main body foundation pit waterproof curtain
7 main body of engineering method dowel crown beam turns over beam 8
9 bottom plate 10 of station main body
11 top plate 12 of side wall
Pre-buried 13 tripod 14 of dowel
15 dewatering well 16 of steel form
Specific embodiment
Cooperate schema and the preferred embodiments of the invention below, the present invention is further explained to reach predetermined goal of the invention institute
The technological means taken.
As shown in Figure 1 to Figure 2, a kind of construction method of external hanging type wind pavilion provided in one embodiment of the invention, packet
Include following steps:
1, setting cheat in dewatering well: main structure excavation of foundation pit forward position main body foundation pit and wind pavilion foundation pit join domain according to
Interior dewatering well 1 is cheated in the setting of the interval 30~35m, and the well casing for cheating interior dewatering well 1 is all made of real pipe in bottom plate above section, and dewatering well is adopted
With steel tube well, well top mark height is more than initial water level, deployment of submersible pumps in well, answers during wind pavilion excavation of foundation pit and structure are returned and built
Holding is drawn water state, notices that protection, guarantee can be operated normally in wind pavilion excavation of foundation pit during main structure is returned and built.
2, outer dewatering well in hole is set: going along with sb. to guard him the outer drop in setting hole outside 3 far from the side engineering method stake of main body foundation pit in wind pavilion foundation pit
Well 2, the outer dewatering well in hole 2 use sand-free concrete tube, go along with sb. to guard him 3 and 5 seam crossing distance 5 of main body water-stop curtain in engineering method stake
It is arranged at~8m, remaining is arranged along wind pavilion foundation pit longitudinal direction, 20~25m of spacing, deployment of submersible pumps in well, during excavation of foundation pit
Outer water level will be cheated and be down to wind pavilion floor level hereinafter, reducing the Water And Earth Pressures suffered by going along with sb. to guard him.
3, be arranged bracing members: it is identical that wind pavilion engineering method dowel crown beam and main body turn over 8 top mark height of beam, on excavation topsoil to main body
A distance under beam 8 is turned over, turns over erection bracing members 6, branch tie distance 3m, brace pre axial force between beam 8 and engineering method dowel crown beam 7 in main body
300kN, for main body turn over beam absent region according to bracing members position be arranged support pier, support pier section 700mm × 750mm,
Close to support one side 11B28, the anchorage length away from support one side 4B28, stirrup A12@150, main reinforcement insertion top plate is main reinforcement
15d。
4, it drains and excavates: opening the dewatering well in main body reserved dewatering well 1, outer dewatering well in hole 2 and wind pavilion Foundation Pit
16, it inside and outside water level will be cheated is down to wind pavilion structure base slab and excavated hereinafter, carrying out wind pavilion pit earthwork again, with digging and abolish main body foundation pit
Fender post 4 and main body water-stop curtain 5.
6, pour the bottom plate of wind pavilion structure: foundation pit is received bottom and is completed, and pours bed course, and construct waterproof slab and reinforcing bar install bottom
The pre-buried dowel 13 of slab muscle Shi Liushe large steel moulding plate, in the pre-buried dowel B32 of bottom plate before wind pavilion main body bottom slab concreting, oblique 45 ° are set
It sets, anchorage length is no less than 0.5m in bottom plate, to fixed large steel moulding plate.
7, the side wall of wind pavilion structure is poured: after 10 intensity of wind pavilion structure base slab is met the requirements, side wall waterproof of constructing and steel
Muscle is installed large steel moulding plate 15 and tripod 14, and is anchored securely with pre-buried dowel 13, and pouring for wind pavilion structure side wall 11 is carried out,
The lateral support for going along with sb. to guard him pile body is acted on being formed as early as possible, controls foundation pit deformation.
8, it pours the top plate of wind pavilion structure: after 11 intensity of wind pavilion structure side wall is met the requirements, removing installation large steel moulding plate
15 and tripod 14, it sets up falsework system and carries out pouring for wind pavilion structure roof 12.
9, complete: after 12 intensity of wind pavilion structure roof is met the requirements, form removal strutting system completes entire wind pavilion knot
The construction of structure, the wind pavilion structure include the bottom plate 10 for being connected to station main structure 9, the side wall 11 for being connected to bottom plate and
It is connected to the top plate 12 of side wall 11 and station main structure 9, and stops cheating interior dewatering well 1, outer dewatering well in hole 2 and wind pavilion foundation pit
Dewatering well 16 in hole runs and shunts in a well, that is, completes whole construction.
Advantages of the present invention has the following:
1, be by outer dewatering well in hole reduce act on go along with sb. to guard him in engineering method stake Water And Earth Pressures resultant force, can by inner support from
Twice are reduced to together, and can be reduced setting second and be supported the unfavorable shadow built to subsequent earth excavation and structure time
It rings.
2, interior equipped with dewatering well in cheating with wind pavilion foundation pit join domain in main body foundation pit, reduce main body Water Level in Foundation Pit rise band
The percolating water risk come.
3, inner support supporting point is adjusted from former main body fender post crown beam to main body and turns over beam, can carried out with earth excavation
Abolishing for former main body fender post and crown beam, may be implemented do mechanization operation to accelerate speed of application, no setting is required post-cast strip, reduce
Structure construction stitches quantity, reduces the risk of later period percolating water, avoids the inconvenience for hanging out pile section by post-cast strip.
4, the rapid construction for realizing structure side wall is conducive to form fender post lateral support effect, reduces foundation pit deformation
Risk.
The above is only presently preferred embodiments of the present invention, not does limitation in any form to the present invention, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member, in the range of not departing from technical solution of the present invention, when the technology contents using the disclosure above make a little change or repair
Decorations are the equivalent embodiment of equivalent variations, but anything that does not depart from the technical scheme of the invention content, technology according to the present invention are real
Matter any simple modification, equivalent change and modification to the above embodiments, still fall within the range of technical solution of the present invention
It is interior.
Claims (7)
1. a kind of construction method of external hanging type wind pavilion, which comprises the following steps:
Interior dewatering well is cheated in setting: being cheated in main structure excavation of foundation pit forward position main body foundation pit and the setting of wind pavilion foundation pit join domain interval
Interior dewatering well；
Outer dewatering well in hole is set: outer dewatering well in hole being set far from the side of main body foundation pit in wind pavilion foundation pit；
Setting bracing members: it is turned in main body and sets up bracing members between beam and engineering method dowel crown beam；
It draining and excavates: opening in aforementioned hole after dewatering well and outer dewatering well in hole, earth excavation；
Pour wind pavilion structure: after the bottom plate, side wall and top plate that sequentially pour wind pavilion structure, completion of cutting off the water.
2. the construction method of external hanging type wind pavilion according to claim 1, which is characterized in that the dewatering well step in setting is cheated
In, interior dewatering well is cheated according to the setting of the interval 30~35m along main body foundation pit and wind pavilion foundation pit join domain.
3. the construction method of external hanging type wind pavilion according to claim 1, which is characterized in that in setting outer dewatering well in hole step
In, outer dewatering well in hole is set according to the interval 20~25m along wind pavilion foundation pit longitudinal direction.
4. the construction method of external hanging type wind pavilion according to claim 1, which is characterized in that in setting bracing members step,
Beam absent region further settable support pier is turned over for main body.
5. the construction method of external hanging type wind pavilion according to any one of claim 1 to 4, which is characterized in that pouring wind
In pavilion configuration steps, the bottom plate of wind pavilion structure, need to be in the pre-buried dowel of bottom plate before being poured.
6. the construction method of external hanging type wind pavilion according to claim 5, which is characterized in that pouring wind pavilion configuration steps
In, the side wall of wind pavilion structure installs large steel moulding plate and tripod after construction waterproof and reinforcing bar, and anchors with pre-buried dowel.
7. the construction method of external hanging type wind pavilion according to claim 6, which is characterized in that pouring wind pavilion configuration steps
In, it needs to remove installation large steel moulding plate and tripod before the top board construction of wind pavilion structure, sets up falsework system and carry out wind pavilion knot
Structure top plate pours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910127989.5A CN109706967A (en) | 2019-02-19 | 2019-02-19 | The construction method of external hanging type wind pavilion |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910127989.5A CN109706967A (en) | 2019-02-19 | 2019-02-19 | The construction method of external hanging type wind pavilion |
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| CN109706967A true CN109706967A (en) | 2019-05-03 |
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| CN201910127989.5A Pending CN109706967A (en) | 2019-02-19 | 2019-02-19 | The construction method of external hanging type wind pavilion |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112282785A (en) * | 2020-10-28 | 2021-01-29 | 上海隧道工程有限公司 | Tunnel portal steel ring installation device and installation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180044907A1 (en) * | 2016-08-12 | 2018-02-15 | Wuhan Zhihe Geotechnical Engineering Co., Ltd | Inverse construction method for deep, large and long pit assembling structure of suspension-type envelope enclosure |
| CN108149695A (en) * | 2018-02-08 | 2018-06-12 | 合肥市市政设计研究总院有限公司 | For the short support construction of steel and construction method of station accessory structure foundation pit Force transmission parts |
| CN208039262U (en) * | 2017-12-29 | 2018-11-02 | 广州地铁设计研究院有限公司 | A kind of anti-drop device of shallow foundation hole support plate |
| CN209669931U (en) * | 2019-02-19 | 2019-11-22 | 上海隧道工程有限公司 | The constructing structure of external hanging type wind pavilion |
-
2019
- 2019-02-19 CN CN201910127989.5A patent/CN109706967A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180044907A1 (en) * | 2016-08-12 | 2018-02-15 | Wuhan Zhihe Geotechnical Engineering Co., Ltd | Inverse construction method for deep, large and long pit assembling structure of suspension-type envelope enclosure |
| CN208039262U (en) * | 2017-12-29 | 2018-11-02 | 广州地铁设计研究院有限公司 | A kind of anti-drop device of shallow foundation hole support plate |
| CN108149695A (en) * | 2018-02-08 | 2018-06-12 | 合肥市市政设计研究总院有限公司 | For the short support construction of steel and construction method of station accessory structure foundation pit Force transmission parts |
| CN209669931U (en) * | 2019-02-19 | 2019-11-22 | 上海隧道工程有限公司 | The constructing structure of external hanging type wind pavilion |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112282785A (en) * | 2020-10-28 | 2021-01-29 | 上海隧道工程有限公司 | Tunnel portal steel ring installation device and installation method thereof |
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