CN209308066U - A kind of pipe gallery foundation pit supporting construction - Google Patents
A kind of pipe gallery foundation pit supporting construction Download PDFInfo
- Publication number
- CN209308066U CN209308066U CN201821437029.6U CN201821437029U CN209308066U CN 209308066 U CN209308066 U CN 209308066U CN 201821437029 U CN201821437029 U CN 201821437029U CN 209308066 U CN209308066 U CN 209308066U
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- China
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- steel sheet
- sheet pile
- steel
- bracing members
- foundation pit
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Abstract
The utility model discloses one of technical field of building construction pipe gallery foundation pit supporting constructions, cement mixing method and concrete cushion are equipped in the bottom of foundation pit, piping lane is set to the top of concrete cushion, the left and right of piping lane is equipped with steel sheet pile, plain concrete support and plain concrete load transfering strip are respectively equipped between the end of amount up and down of piping lane and steel sheet pile, in the region that piping lane is not constructed, twice bracing members are equipped between the steel sheet pile of two sides, the both ends of twice bracing members pass through steel purlin and connect with steel sheet pile.The utility model carries out supporting to the pipe gallery in fluvial-delta area, and whole work progress is easily controllable, and security risk is few, construction quality is preferable, at low cost, speed of application is fast, occupies manually few advantage.
Description
Technical field
The utility model relates to technical field of building construction, in particular to a kind of pipe gallery pattern foundation pit supporting structure knot
Structure.
Background technique
In the delta area in some rivers, since current scour forms Plain landforms, place topography is relatively flat, part
Slightly rise and fall.It include soft layer, sand liquefaction phenomenon there are more unfavorable geology environment in this topography environment,
And the hydrologic conditions such as surface water, underground water, diving under this environment are complicated, and underground construction is more difficult.
Pipe gallery is entirely located in existing road greenbelt underground, and using open cut, slope is not constructed, thus piping lane construction base
Cheat supporting measure importance, it is key also just it is self-evident.Pattern foundation pit supporting structure will not only carry soil pressure, also carry soil
Dead load and dynamic load of interim earthwork load, construction machinery when side is excavated etc..
How in fluvial-delta area the construction of pipe gallery is carried out, supporting construction becomes wherein the key link,
How on the basis of guaranteeing that entire supporting construction is easily controllable, quality is guaranteed, the cost and construction work of construction are reduced
Phase becomes a test.
Summary of the invention
In order to overcome the shortcomings of existing technology, the utility model provides a kind of pipe gallery foundation pit supporting construction.
Technical solutions of the utility model are as described below:
On the one hand, a kind of pipe gallery foundation pit supporting construction, which is characterized in that be equipped with Soil-cement in the bottom of foundation pit
Stake, the upper surface of the cement mixing method are equipped with concrete cushion, and piping lane is set to the top of the concrete cushion,
Row's steel sheet pile is equipped at left and right sides of the piping lane, the lower end of the steel sheet pile is fixed on the soil cement and stirs
The lower end of stake is mixed, the upper end is exposed to above grade, and plain concrete branch is equipped between the upper end of the piping lane and the steel sheet pile
Support is equipped with plain concrete load transfering strip between lower end and the steel sheet pile；
In the region that the piping lane is not constructed, twice bracing members are equipped between the steel sheet pile of two sides, wherein first
Bracing members are located at the top of the second bracing members, the both ends of first bracing members and second bracing members pass through steel purlin with
The steel sheet pile connection.
According to the utility model of above scheme, which is characterized in that the grade is equipped with intercepting ditch.
Further, the intercepting ditch is located at the left and right sides of the foundation pit.
According to the utility model of above scheme, which is characterized in that the upper end of the steel sheet pile is higher than the grade
400mm。
According to the utility model of above scheme, which is characterized in that first bracing members are located at the piping lane top institute
In horizontal top, second bracing members are located at horizontal lower section where the piping lane top.
Further, the height of grade described in the first bracing members central distance is 400mm.
Further, the height of grade described in the second bracing members central distance is 2450mm.
According to the utility model of above scheme, which is characterized in that the concrete cushion with a thickness of 200mm.
According to the utility model of above scheme, which is characterized in that the element concrete support, the plain concrete load transfering strip with it is described
Asphalt felt is equipped between steel sheet pile.
According to the utility model of above scheme, which is characterized in that the steel purlin includes the H-type of steel ribs and Two bors d's oeuveres
Steel, the steel ribs are set to the side of the H profile steel, are equipped between the H profile steel and the steel sheet pile and go along with sb. to guard him steel plate, with institute
It states and is equipped with steel batten plate between bracing members.
Further, the steel batten plate is fixedly connected by hangs muscle with the steel sheet pile.
Further, two-sided welding between the upper end of the hangs muscle and the steel sheet pile, and the hangs muscle and the steel
Tilt angle between sheet pile is 45 degree.
According to the utility model of above scheme, which is characterized in that the lower end of the steel purlin, which is equipped with, supports horizontal steel, described
The medium position of horizontal steel is supported to be fixed with the oblique steel of support, the other end of the oblique steel of support and the horizontal steel of support are each attached to institute
It states on steel sheet pile.
According to the utility model of above scheme, which is characterized in that the bracing members include steel pipe and jack, and described thousand
Jin top is supported by bracket, and the support segmented head of the very heavy distal end chip is connect with the steel purlin.
According to the utility model of above scheme, which is characterized in that the steel sheet pile includes pile frame, and the pile frame is in bottom edge
What is be open is trapezoidal, and the both ends of the pile frame are equipped with the fore shaft of inside returning, passes through fore shaft between the two neighboring steel sheet pile and connects
It connects.
According to the utility model of above scheme, the beneficial effect is that: the utility model is to fluvial-delta area
Pipe gallery carries out supporting, can fully ensure that the structural strength of piping lane periphery, and whole work progress is easily controllable, and safety
Hidden danger is few, construction quality is preferable, and whole surface subsidence, horizontal displacement, tilt angle etc. are within the specified scope；This is practical new
Hundred meters of costs of type are about 1.2 ten thousand yuan, relative to other construction methods, have advantage at low cost；The utility model construction
Process Steel Sheet Pile can be used in turn, and speed of application is fast, be occupied artificial few.
Detailed description of the invention
Fig. 1 goes along with sb. to guard him schematic cross-sectional view for the utility model.
Fig. 2 is the fender post plan view of the utility model.
Fig. 3 is the schematic diagram of the utility model steel purlin and steel sheet pile junction.
Fig. 4 is the schematic diagram of steel purlin and steel pipe support junction in the utility model.
Fig. 5 is the schematic diagram of the utility model Steel Sheet Pile junction.
10, foundation pit in the figure；11, bottom is cheated；12, grade；13, intercepting ditch；20, cement mixing method；30, steel plate
Stake；31, pile frame；32, fore shaft；41, the first bracing members；42, the second bracing members；43, steel pipe；44, jack；45, bracket；46,
Support segmented head；50, steel purlin；51, H profile steel；52, steel ribs；53, steel batten plate；54, steel plate is gone along with sb. to guard him；55, hangs muscle；56, it supports
Horizontal steel；57, oblique steel is supported；60, piping lane；71, plain concrete support；72, plain concrete load transfering strip；73, asphalt felt；80, concrete cushion；
90, monomer is gone along with sb. to guard him.
Specific embodiment
With reference to the accompanying drawing and the utility model is further described in embodiment:
As shown in Figs. 1-2, a kind of pipe gallery foundation pit supporting construction is equipped with the foundation pit 10 of invagination on grade 12.
Grade 12 is equipped with intercepting ditch 13, and intercepting ditch 13 is located at the left and right sides of foundation pit 10, convenient for extra muddy water in work progress
Discharge.It is equipped with cement mixing method 20 at the hole bottom 11 of foundation pit 10, the upper surface of cement mixing method 20 is equipped with concrete
Bed course 80, piping lane 60 are set to the top of concrete cushion 80.Preferably, concrete cushion 80 with a thickness of 200mm.
The left and right sides of piping lane 60 is equipped with row's steel sheet pile 30 (preferably IV shaped steel plate pile of Larsen), under steel sheet pile 30
End is fixed on the downside subsurface of cement mixing method 20, and the upper end is exposed to 12 top of grade.Preferably, steel sheet pile
30 upper end, which is higher than grade 12,400mm, can both save application and the construction space of steel sheet pile 30, while can also protect
Steel sheet pile 30 is demonstrate,proved to the support strength of construction surface.
It is equipped with plain concrete support 71 between the upper end and steel sheet pile 30 of piping lane 60, plain concrete is equipped between lower end and steel sheet pile 30
Load transfering strip 72 is equipped with asphalt felt 73 between plain concrete support 71, plain concrete load transfering strip 72 and steel sheet pile 30, conducive to steel sheet pile 30
It extracts.
In the region that piping lane 60 is not constructed, twice bracing members are equipped between the steel sheet pile 30 of two sides, wherein the first steel branch
Support 41 is located at the tops of the second bracing members 42, the both ends of the first bracing members 41 and the second bracing members 42 pass through steel purlin 50 with
Steel sheet pile 30 connects.First bracing members 41 are located at horizontal top where 60 top of piping lane, and the second bracing members 42 are located at piping lane
Horizontal lower section where 60 tops.Specific: the height of 41 central distance grade 12 of the first bracing members is 400mm, the
The height of two bracing members, 42 central distance grade 12 is 2450mm.
As shown in the table, in the present embodiment twice bracing members axle power value:
By the axle power value of pre-add, it ensure that bracing members to the support degree of two sides steel sheet pile, while avoiding bracing members
Axial damage.
The rear and front end of entire supporting construction and monomer go along with sb. to guard him 90 connections, guarantee the continuity of structure.
As shown in figure 3, steel purlin 50 includes (the preferably 500X300X11X18 type of H profile steel 51 of steel ribs 52 and Two bors d's oeuveres
Steel), steel ribs 52 be set to H profile steel 51 side, between H profile steel 51 and steel sheet pile 30 be equipped with go along with sb. to guard him steel plate 54 (with a thickness of
14mm), it is equipped with steel batten plate 53 (with a thickness of 20mm) between bracing members, the steel sheet pile 30 in 50 altitude range of steel purlin is empty
Using C30, hard pea gravel concreten tamps gap fastly.
Preferably, the lower end of steel purlin 50, which is equipped with, supports horizontal steel 56, supports the medium position of horizontal steel 56 to be fixed with support oblique
Steel 57 supports the other end of oblique steel 57 and the horizontal steel 56 of support to be each attached on steel sheet pile 30.Steel batten plate 53 passes through hangs muscle 55 and steel
Sheet pile 30 is fixedly connected, two-sided welding between the upper end and steel sheet pile 30 of hangs muscle 55, and inclining between hangs muscle 55 and steel sheet pile 30
Rake angle is 45 degree.
As shown in figure 4, bracing members include steel pipe 43 and jack 44, jack 44 is supported by bracket 45, very heavy
The support segmented head 46 for pushing up 44 ends is connect with steel purlin.
As shown in figure 5, steel sheet pile 30 includes pile frame 31, pile frame 31 is in trapezoidal, the base width of pile frame 31 of bottom edge opening
B is 400mm, trapezoidal height be 170mm, entire pile frame with a thickness of 15.5mm.
The both ends of pile frame 31 are equipped with the fore shaft 32 of inside returning, are connected between two neighboring steel sheet pile 30 by fore shaft 32.
Fore shaft 32 is squeezed into play occlusion waterproof；32 coating butter of fore shaft can cheat after the completion of piling when necessary in favor of occlusion, antiseepage
Grouting water-tight at outer fore shaft.
The realization process of the utility model the following steps are included:
1, site elevation is flattened, and carries out hole bottom cement mixing method 20 and reinforces.
Specifically, the hole above cement mixing content in bottom is not less than 20% not less than 4.0m cement mixed weight below 10%, hole bottom, it can
To guarantee cement mixing method 20.
2,30 finished product of steel sheet pile is made, and line setting is carried out to the position of steel sheet pile 30.
3, injection steel sheet pile 30.
4, it is excavated to the position (first of bracing members 41 transfers 0.5m) of the first bracing members 41, performs the steel purlin 50 on upper layer
With the first bracing members 41.
5, continue the position (42 lower section 0.5m of second bracing members) for being excavated to the second bracing members 42, the steel for performing lower layer encloses
Purlin 50 and the second bracing members 42.
6, after excavation of foundation pit to designed elevation, in casting concrete bed course 80 in 12 hours.
7, after the completion of concrete cushion 80 is constructed, the construction of plain concrete load transfering strip 72 is completed.
8, the construction of piping lane main structure is completed, and removes bracing members.
It first constructs 60 main structure of part piping lane, after design strength to be achieved, removes the second bracing members 42；It pours remaining
Main structure element concrete support 71 is backfilled to first of bracing members, 41 bottom after the part reaches design strength, removes first of steel
Support 41.
9, steel sheet pile 30 is pulled out.
The utility model has the advantage that
1) mud will not be generated using Larsen steel sheet pile, live civilized construction is easily guaranteed that；Larsen steel sheet pile can be with simultaneously
It reuses, preferable environmental benefit can be generated with natural resources such as saving steels.
2) Larsen steel sheet pile is connected by the fore shaft between every, is had good sealing performance, can is bearing platform construction
Create good execution conditions.
3) through cost accounting, SMW engineering method stake inserts H profile steel and adds every hundred meters of costs of reinforced concrete inner support system about 1.9 ten thousand
Member, and after using 18m Larsen steel sheet pile, hole bottom cement mixing method support system in the present embodiment, every hundred meters of costs about 1.3 ten thousand
Member, cost-saved, remarkable in economical benefits.
4) the plug speed of steel sheet pile 30 is fast: when squeezing into steel sheet pile, one day construction volume is 80；When pulling out, construct within one day
Amount is 150.
It should be understood that for those of ordinary skills, it can be modified or changed according to the above description,
And all these modifications and variations all should belong to the protection scope of the appended claims for the utility model.
Illustrative description is carried out to the utility model patent above in conjunction with attached drawing, it is clear that the reality of the utility model patent
It is now not subject to the restrictions described above, as long as being carried out using the method concept and technical solution of the utility model patent various
Improve, or it is not improved the conception and technical scheme of the utility model patent are directly applied into other occasions, in this reality
With in novel protection scope.
Claims (6)
1. a kind of pipe gallery foundation pit supporting construction, which is characterized in that be equipped with cement mixing method, the water in the bottom of foundation pit
The upper surface of soil mixing pile is equipped with concrete cushion, and piping lane is set to the top of the concrete cushion,
Row's steel sheet pile is equipped at left and right sides of the piping lane, the lower end of the steel sheet pile is fixed on the cement mixing method
Lower end, the upper end is exposed to above grade, plain concrete support is equipped between the upper end of the piping lane and the steel sheet pile,
Plain concrete load transfering strip is equipped between lower end and the steel sheet pile；
In the region that the piping lane is not constructed, twice bracing members are equipped between the steel sheet pile of two sides, wherein the first steel branch
Support is located at the top of the second bracing members, the both ends of first bracing members and second bracing members pass through steel purlin with it is described
Steel sheet pile connection.
2. pipe gallery foundation pit supporting construction according to claim 1, which is characterized in that the grade, which is equipped with, to be cut
Ditch.
3. pipe gallery foundation pit supporting construction according to claim 2, which is characterized in that the intercepting ditch is located at the base
The left and right sides in hole.
4. pipe gallery foundation pit supporting construction according to claim 1, which is characterized in that first bracing members are located at institute
Horizontal top where stating piping lane top, second bracing members are located at horizontal lower section where the piping lane top.
5. pipe gallery foundation pit supporting construction according to claim 1, which is characterized in that the bracing members include steel pipe and
Jack, the jack are supported by bracket, and the support segmented head of the very heavy distal end chip is connect with the steel purlin.
6. pipe gallery foundation pit supporting construction according to claim 1, which is characterized in that the steel sheet pile includes pile frame,
The pile frame is trapezoidal in bottom edge opening, and the both ends of the pile frame are equipped with the fore shaft of inside returning, the two neighboring steel sheet pile
Between pass through fore shaft connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821437029.6U CN209308066U (en) | 2018-09-04 | 2018-09-04 | A kind of pipe gallery foundation pit supporting construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821437029.6U CN209308066U (en) | 2018-09-04 | 2018-09-04 | A kind of pipe gallery foundation pit supporting construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209308066U true CN209308066U (en) | 2019-08-27 |
Family
ID=67668879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821437029.6U Expired - Fee Related CN209308066U (en) | 2018-09-04 | 2018-09-04 | A kind of pipe gallery foundation pit supporting construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209308066U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115162364A (en) * | 2022-09-07 | 2022-10-11 | 中冶建筑研究总院有限公司 | Foundation pit support steel enclosing purlin, support structure and mounting and dismounting method thereof |
-
2018
- 2018-09-04 CN CN201821437029.6U patent/CN209308066U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115162364A (en) * | 2022-09-07 | 2022-10-11 | 中冶建筑研究总院有限公司 | Foundation pit support steel enclosing purlin, support structure and mounting and dismounting method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190827 Termination date: 20210904 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |