CN206279534U - A kind of subway foundation pit building enclosure - Google Patents
A kind of subway foundation pit building enclosure Download PDFInfo
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- CN206279534U CN206279534U CN201621005536.3U CN201621005536U CN206279534U CN 206279534 U CN206279534 U CN 206279534U CN 201621005536 U CN201621005536 U CN 201621005536U CN 206279534 U CN206279534 U CN 206279534U
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Abstract
A kind of subway foundation pit building enclosure, the utility model is related to subway engineering technical field；It includes phase groove section, the second stage of groove section and knuckle groove section；Several phase grooves section and several spaced settings of the second stage of groove section, and it is equipped with knuckle groove section at the knuckle of phase groove section and at the knuckle of the second stage of groove section；Described phase groove section, the second stage of groove section and knuckle groove section are led wall, shaped steel and water-tight concrete and are constituted by ground-connecting-wall；Ground-connecting-wall is led in the interior groove body of wall and is provided with shaped steel；Water-tight concrete is equipped with connection gap between described phase groove section, the second stage of groove section and knuckle groove section and at the gap between shaped steel and cell body；The top of described phase groove section, No. two groove sections and knuckle groove section is equipped with Guan Liang；Angle steel is provided with the knuckle of described knuckle groove section.Construction of diaphragm wall efficiency is significantly improved, shaped steel pulls out recycling and advantageously reduces construction costs, underground municipal pipeline is avoided by shaped steel flexible arrangement and improves overall efficiency of construction and reduction engineering construction cost.
Description
Technical field
The utility model is related to subway engineering technical field, and in particular to a kind of subway foundation pit building enclosure.
Background technology
Diaphram wall and the stake of SMW engineering methods are the most frequently used two kinds of building enclosure forms in current Metro Deep Excavation, and ground connects
Wall is added in the form of steel reinforcement cage using concrete, and the stake of SMW engineering methods is in the form of cement mixing method adds shaped steel.Two kinds of engineering methods are from skill
Compare in art：Ground-connecting-wall can be realized than the SMW engineering method deep foundation ditch of stake, and the stake of SMW engineering methods takes the mode of insertion shaped steel to construct effect
Rate is higher than ground-connecting-wall and can pull out shaped steel recycling.The foundation depth advantage and SMW works of ground-connecting-wall can so be combined
Method stake efficiency high and the advantage of energy-conserving and environment-protective, using a kind of ground-connecting-wall engineering method of concrete combination type steel skeletonUnder traditionally
Diaphragm wall uses reinforcing bar for skeleton, it is necessary to reinforcement fabrication into ground-connecting-wall view picture steel reinforcement cage is largely made in a large amount of handworks by hand
Industry causes ground-connecting-wall low construction efficiency；Traditional foundation pit enclosure structure construction, if running into underground municipal pipeline, need to take pipeline to change and move
Measure compared with complex process method and can not be effectively ensured pipeline safety, it would be highly desirable to improve.
Utility model content
The purpose of this utility model is the defect and deficiency for prior art, there is provided a kind of simple structure, design is closed
Reason, subway foundation pit building enclosure easy to use, significantly improve construction of diaphragm wall efficiency, and it is favourable that shaped steel pulls out recycling
In construction costs is reduced, underground municipal pipeline is avoided by shaped steel flexible arrangement and improves overall efficiency of construction and reduction engineering construction
Cost.
To achieve the above object, the technical solution adopted in the utility model is：It includes phase groove section, the second stage of groove section and folding
Chamfered groove section；Several phase grooves section and several the second stage of groove spaced settings of section, and at the knuckle of phase groove section and the second stage of groove
Knuckle groove section is equipped with the knuckle of section；Described phase groove section, the second stage of groove section and knuckle groove section lead wall, shaped steel by ground-connecting-wall
Constituted with water-tight concrete；Ground-connecting-wall is led in the interior groove body of wall and is provided with shaped steel；Described phase groove section, the second stage of groove section and knuckle
Water-tight concrete is equipped with connection gap between groove section and at the gap between shaped steel and cell body；A described phase groove
The top of section, No. two groove sections and knuckle groove section is equipped with Guan Liang；Angle steel is provided with the knuckle of described knuckle groove section.
The upper end of described shaped steel be arranged at Guan Liang bottom or dew located at Guan Liang top, and dew set height more than etc.
In 0.5 meter.
Described shaped steel is hot pressing H profile steel or i shaped steel.
Described ground-connecting-wall is led portion's cell body inwall within the walls and is provided with retaining wall.
After said structure, the utility model has the beneficial effect that：A kind of subway foundation pit described in the utility model is gone along with sb. to guard him
Structure, significantly improves construction of diaphragm wall efficiency, and shaped steel pulls out recycling and advantageously reduces construction costs, by shaped steel spirit
Arrangement living avoids underground municipal pipeline and improves overall efficiency of construction and reduce engineering construction cost, and the utility model has structure letter
It is single, set reasonable, the advantages of low manufacture cost.
Brief description of the drawings
In order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the accompanying drawing to be used needed for description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, before creative labor is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the top view of phase groove section in the utility model.
Fig. 2 is the top view of the second stage of groove section in the utility model.
Fig. 3 is the top view of knuckle groove section in the utility model.
Fig. 4 is the structural representation of specific embodiment one.
Fig. 5 is the structural representation of specific embodiment two.
Fig. 6 is the displacement envelope diagram in embodiment one.
Fig. 7 is the bending moment envelope diagram in embodiment one.
Fig. 8 is to shear envelope diagram in embodiment one.
Fig. 9 is the structural representation of phase groove section in embodiment one.
Figure 10 is the structural representation of the second stage of groove section in embodiment one.
Figure 11 is the structural representation of embodiment two.
Description of reference numerals：
One phase groove section 1, the second stage of groove section 2, knuckle groove section 3, ground-connecting-wall lead wall 4, shaped steel 5, water-tight concrete 6, Guan Liang 7, angle
Steel 8.
Specific embodiment
The utility model is further described below in conjunction with the accompanying drawings.
Specific embodiment one：
Referring to as Figure 1-Figure 4, the technical scheme that this specific embodiment is used is：It includes phase groove section 1, second phase
Groove section 2 and knuckle groove section 3；Several phase grooves section 1 and several the second stage of groove 2 spaced settings of section, and phase groove section 1 folding
Knuckle groove section 3 is equipped with angle and at the knuckle of the second stage of groove section 2；Described phase groove section 1, the second stage of groove section 2 and knuckle groove section 3 are equal
Wall 4, shaped steel 5 and water-tight concrete 6 is led by ground-connecting-wall to constitute；Ground-connecting-wall is led and shaped steel 5 is provided with the interior groove body of wall 4；Described
It is all provided with connection gap between one phase groove section 1, the second stage of groove section 2 and knuckle groove section 3 and at the gap between shaped steel 5 and cell body
There is water-tight concrete 6；Described 1, No. two groove sections 2 of phase groove section and the top of knuckle groove section 3 are equipped with Guan Liang 7；Described type
The upper end of steel 5 is arranged at the bottom of Guan Liang 7；Described shaped steel 5 is hot pressing H profile steel or i shaped steel；Described ground-connecting-wall is led
Wall is provided with retaining wall in the interior groove body of wall 4；Angle steel 8 is provided with the knuckle of described knuckle groove section 3.
The construction method of this specific embodiment is as follows：Before foundation ditch implementation, first to the underground municipal administration pipe in the range of foundation ditch
Line does necessary moving and changes, and then applies ground-connecting-wall and leads wall 4, then using continuous wall trench underground machine grooving, makes during grooving
Retaining wall is carried out with the suitable mud of match ratio, carrying out clear bottom after ground-connecting-wall leads the grooving of wall 4 to required depth changes slurry, is put into a phase
The shaped steel 5 of groove section 1 or the second stage of groove section 2（Suitable quantity and model are used according to actual needs）, poured after cleaning groove width joint with water
Build the water-tight concrete 6 of required label；The top embedment top surface of Guan Liang 7 of shaped steel 5, by the friendship of phase groove section 1 and the second stage of groove section 2
Closed foundation pit enclosure structure is formed for construction.
After said structure, the utility model has the beneficial effect that：A kind of subway foundation pit described in the utility model is gone along with sb. to guard him
Structure, significantly improves construction of diaphragm wall efficiency, and shaped steel pulls out recycling and advantageously reduces construction costs, by shaped steel spirit
Arrangement living avoids underground municipal pipeline and improves overall efficiency of construction and reduce engineering construction cost, and the utility model has structure letter
It is single, set reasonable, the advantages of low manufacture cost.
Specific embodiment two：
Referring to Fig. 5, this specific embodiment is with the difference of specific embodiment one：Described shaped steel 5 it is upper
End dew located at Guan Liang 7 top, and dew set height be 0.5 meter, remaining part and connect on the phase of specific embodiment one
Together.
The construction method of this specific embodiment is as follows：Before foundation ditch implementation, first to the underground municipal administration pipe in the range of foundation ditch
Line does necessary moving and changes, and then applies ground-connecting-wall and leads wall 4, then using continuous wall trench underground machine grooving, makes during grooving
Retaining wall is carried out with the suitable mud of match ratio, carrying out clear bottom after ground-connecting-wall leads the grooving of wall 4 to required depth changes slurry, is put into a phase
The shaped steel 5 of groove section 1 or the second stage of groove section 2（Suitable quantity and model are used according to actual needs）, poured after cleaning groove width joint with water
The water-tight concrete 6 of required label is built, the depth at the top of shaped steel 5 is exposed the top surface 0.5m of Guan Liang 7, conveniently pulled out, by a phase groove
Section 1 replaces to construct to form closed foundation pit enclosure structure with the second stage of groove section 2.
Embodiment：
By taking certain two-layer underground station design of foundation pit as an example, stratum is followed successively by from top to bottom：
| Sequence number | Soil layer title | Thickness (m) | c(kPa) | φ(°) | Horizontal-hole blasting | Horizontal foundation modulus | ||
| 1 | Miscellaneous fill | 1.00 | 17.0 | 0.00 | 8.00 | 3.00E-03 | 3.5 | 0.8 |
| 2 | Plain fill | 2.60 | 18.4 | 2.00 | 12.00 | 4.00E-04 | 10 | 2.0 |
| 3 | Silt clay | 6.70 | 17.0 | 13.00 | 9.60 | 5.00E-08 | 5 | 1.4 |
| 4 | Very soft sill clay | 2.10 | 17.7 | 14.00 | 10.00 | 8.00E-07 | 5 | 1.5 |
| 5 | Silty clay presss from both sides silt | 2.80 | 18.6 | 26.00 | 16.00 | 6.00E-04 | 15 | 3.0 |
| 6 | Clay | 11.50 | 19.2 | 57.00 | 17.00 | 8.00E-07 | 28 | 4.9 |
| 7 | Silty clay | 2.60 | 18.7 | 35.00 | 14.30 | 4.00E-06 | 25 | 3.0 |
| 8 | Clay | 3.80 | 19.0 | 56.00 | 16.00 | 8.00E-07 | 27 | 4.5 |
Foundation depth is about 16.6m, and foundation ditch bottom falls on the 6th layer of argillic horizon, groundwater level depth 0.5m, using C35,
The thick embedded 14.9m ground-connecting-walls of 800mm add inner support building enclosure form, by Tongji University's Venus（FRWS7.2）Deep basal pit software
Building enclosure is calculated, ground-connecting-wall structure stress situation refers to accompanying drawing 6-8；Base area connects power within the walls, chooses wide per 600mm
Ground-connecting-wall is calculated with 600*800 section steel beams, selects hot rolled H-shaped dimensions（GB/T 11263-2005）HM600*300b makees
It is reinforcing bar, protective layer thickness is inside and outside to take 100mm, and result of calculation is as follows：Structural limits bend-carrying capacity Mmax=1334kNm, pole
Limit shear-carrying capacity FV=1408kN, fracture width ω max=0.28mm；Ground-connecting-wall arrangement of reinforcement is not more than 0.3mm and controls with fracture width
Calculating processed is defined, and the configuration of ground-connecting-wall shaped steel refers to accompanying drawing 9-10.
Embodiment two：
Steel and concrete diaphram wall not only has the advantages such as efficiency high, energy-conserving and environment-protective, can also solve some special bars
The problem that conventional method cann't be solved under part.Such as certain foundation ditch has across foundation ditch and allows the pipeline of suspension protection, tradition side
Or method changes moves pipeline, this mode high cost and process it is more difficult, or using special processing method, processing method is cumbersome.
If using steel and concrete diaphram wall engineering method, it is only necessary to pipeline is avoided when arranging shaped steel and is protected by, you can with simultaneously real
Show the protection implemented with pipeline of going along with sb. to guard him of foundation ditch, design sample refers to accompanying drawing 11.
The above, is only used to illustrate the technical solution of the utility model and unrestricted, those of ordinary skill in the art couple
Other modifications or equivalent that the technical solution of the utility model is made, without departing from technical solutions of the utility model
Spirit and scope, all should cover in the middle of right of the present utility model.
Claims (4)
1. a kind of subway foundation pit building enclosure, it is characterised in that：It includes phase groove section, the second stage of groove section and knuckle groove section；It is some
Individual phase groove section and several spaced settings of the second stage of groove section, and it is equal at the knuckle of phase groove section and at the knuckle of the second stage of groove section
It is provided with knuckle groove section；Described phase groove section, the second stage of groove section and knuckle groove section lead wall, shaped steel and water-tight concrete by ground-connecting-wall
Constitute；Ground-connecting-wall is led in the interior groove body of wall and is provided with shaped steel；Described phase groove section, the company between the second stage of groove section and knuckle groove section
Water-tight concrete is equipped with gap at seam gap and between shaped steel and cell body；Described phase groove section, No. two grooves sections and
The top of knuckle groove section is equipped with Guan Liang；Angle steel is provided with the knuckle of described knuckle groove section.
2. a kind of subway foundation pit building enclosure according to claim 1, it is characterised in that：The upper end of described shaped steel is set
In the bottom of Guan Liang or dew located at the top of Guan Liang, and dew sets height more than or equal to 0.5 meter.
3. a kind of subway foundation pit building enclosure according to claim 1, it is characterised in that：Described shaped steel is hot pressing H types
Steel or i shaped steel.
4. a kind of subway foundation pit building enclosure according to claim 1, it is characterised in that：Described ground-connecting-wall leads portion within the walls
Cell body inwall is provided with retaining wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621005536.3U CN206279534U (en) | 2016-08-31 | 2016-08-31 | A kind of subway foundation pit building enclosure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621005536.3U CN206279534U (en) | 2016-08-31 | 2016-08-31 | A kind of subway foundation pit building enclosure |
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| Publication Number | Publication Date |
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| CN206279534U true CN206279534U (en) | 2017-06-27 |
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ID=59085188
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621005536.3U Active CN206279534U (en) | 2016-08-31 | 2016-08-31 | A kind of subway foundation pit building enclosure |
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| CN (1) | CN206279534U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106193050A (en) * | 2016-08-31 | 2016-12-07 | 中铁隧道勘测设计院有限公司 | A kind of subway foundation pit building enclosure |
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2016
- 2016-08-31 CN CN201621005536.3U patent/CN206279534U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106193050A (en) * | 2016-08-31 | 2016-12-07 | 中铁隧道勘测设计院有限公司 | A kind of subway foundation pit building enclosure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180608 Address after: 300000 Tianjin free trade zone (Airport Economic Zone), 2-3116 South Road 88. Patentee after: CHINA RAILWAY LIUYUAN GROUP CO., LTD. Address before: 300000 Hongqiao District, Tianjin City, Bridge South East Road Patentee before: Zhongtie Tunnel Survey and Design Inst., Ltd. |
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| TR01 | Transfer of patent right |