CN206173974U - Push pipe construction is with dark underground structure of small -size - Google Patents
Push pipe construction is with dark underground structure of small -size Download PDFInfo
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- CN206173974U CN206173974U CN201621225984.4U CN201621225984U CN206173974U CN 206173974 U CN206173974 U CN 206173974U CN 201621225984 U CN201621225984 U CN 201621225984U CN 206173974 U CN206173974 U CN 206173974U
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Abstract
The utility model discloses a push pipe construction is with dark underground structure of small -size is disclosed, include that it pours into the row of piles to set annular drilling to along foundation ditch inner wall interval, the row of piles was poured into in drilling top is built and even longitudinal section as an organic whole is provided with the malthoid layer for the annular guan liang of rectangle on drilling bored concrete pile and annular guanliang's faying face with it, the drilling that lies in construction push pipe top position department is poured into the row of piles inboard and is provided with the reinforced concrete inside lining, and reinforced concrete lining bottom plate has been laid to the foundation ditch bottom that lies in construction push pipe below, pour into with the construction corresponding drilling in push pipe position and offered push pipe penetrating hole way on the pile body. The utility model discloses a hat roof beam fulcrum row -pile support regards guan liang as the partly of row -pile support structure system, utilizes the mutual transmission of structure atress system, makes guanliang and campshed form the holistic atress system in space, the pile body is in and hangs arm atress structure by the feet behind the broken pile, and the broken pile body bears the peripheral soil body and to its soil pressure effect, relies on top guan liang's atress system to bring into play supprot effect.
Description
Technical field
The utility model is related to piping laying construction technology, more particularly, to a kind of jacking construction small size deep pit support
Protection structure.
Background technology
Jacking construction is exactly no-dig technique（Or few excavation）Pipeline（Including Urban Underground water supply and sewerage pipeline, day hot gas petroleum pipeline
Road, communication cable pipeline etc.）Burial and construction technology.The technology is thoroughly solved in piping laying work progress to City Building
Destruction and the problem such as the influence to road traffic, steady soil and environmental protection aspect advantage are become apparent.Normal condition
Under, it is the various pipe traverse projects of 1m ~ 3m for caliber, particularly in urban environment and in order to protect earth's surface important
The facility such as ecological, greenery patches and river course, building exempts from destruction, it will usually select the jacking construction of non-excavation type.
To meet long-distance pipe jacking engine request, need to set various working pits or received well base at engineering two ends and along journey
Hole, the foundation ditch for depth less than 8m is general to carry out supporting using conventional single-cantilever stake.But some push pipe foundation ditches are in order to pass through
Ji, investment reduction, interior diameter is generally smaller, and inside is not suitable for carrying out supporting with reference to inner support；It is located in urban environment simultaneously
Foundation ditch, if peripheral facility（Various pipelines, optical cable and building）It is numerous, it is also unsuitable to be applied using conventional anchor shaft anchor cable
Work, therefore, for this minor diameter（3 ~ 8 meters）And depth is more than 8m（8 ~ 13 meters）Deep basal pit be accomplished by a kind of new branch of design
Shield scheme, to meet the requirement of safe construction.
The content of the invention
The purpose of this utility model is to provide a kind of small size deep foundation pit support for ensureing the safe normal construction of push pipe
Structure.
To achieve the above object, the utility model can take following technical proposals：
Jacking construction described in the utility model small size deep foundation pit supporting structure, including cyclization is set along foundation ditch inwall
The drill-pouring row of piles of shape, it is the annular of rectangle that the longitudinal section being connected as a single entity is poured at the top of the drill-pouring row of piles
Guan Liang, malthoid layer is provided with faying face of the cast-in-situ bored pile with annular Guan Liang；At construction push pipe top position
Drill-pouring row of piles inner side be provided with reinforced concrete liner, positioned at construction push pipe below bottom of foundation ditch be equipped with reinforced concrete liner
Base plate；Push pipe is offered on the drill-pouring pile body corresponding with construction position of pushing tube wear duct.
In view of base pit engineering feature, cast-in-situ bored pile space set sets at the gap of adjacent two cast-in-situ bored pile
High-pressure rotary jet grouting pile is equipped with, the diameter of the high-pressure rotary jet grouting pile is less than cast-in-situ bored pile.
Brick wall has been built by laying bricks or stones around the foundation ditch inwall, the height of the brick wall is less than 2 meters in the circular crown back portion.
Compact the utility model has the advantage of supporting construction, the supporting construction being arranged in small space foundation ditch has ensured week
The jacking construction safety under complex environment is enclosed, is that engineering normal construction provides the foundation guarantee.The utility model uses Guan Liang branch
Point campshed supporting, using Guan Liang an as part for Row Piles Supporting Structure system, using the mutual transmission of structure stress system, makes hat
Beam and campshed form the overall stress system in a space；Broken pile（Push pipe is opened up on drill-pouring pile body wear duct）Pile body afterwards
In arm force structure is hung by the feet, broken pile body bears the periphery soil body and its soil pressure is acted on, and is sent out by the stress system of top Guan Liang
Wave support action.
Brief description of the drawings
Fig. 1 is overlooking the structure diagram of the present utility model.
Fig. 2 is Figure 1A-A to sectional view.
Specific embodiment
As shown in Figure 1-2, jacking construction described in the utility model small size deep foundation pit supporting structure, including along foundation ditch
The drill-pouring row of piles 2 that 1 inwall interval setting is circularized, the top of drill-pouring row of piles 2 pours be connected as a single entity vertical
Section is foursquare annular Guan Liang 3（Generally can be divided into 1 meter and 1.6 meters two kinds of specifications of the length of side）, in cast-in-situ bored pile and annular
Malthoid layer 4 is provided with the faying face of Guan Liang；Drill-pouring row of piles inner side at construction push pipe 5 top position is provided with steel
Muscle concrete liner 6, the bottom of foundation ditch below construction push pipe is equipped with underboarding 7 in reinforced concrete；It is relative with construction position of pushing tube
Push pipe is offered on the drill-pouring pile body answered wear duct.To meet the anhydrous job requirements in construction period foundation ditch inside, phase
High-pressure rotary jet grouting pile 8 is provided with the gap of adjacent two cast-in-situ bored piles, the diameter of high-pressure rotary jet grouting pile 8 is less than cast-in-situ bored pile, high pressure
Rotary churning pile 8 and the collective effect of drill-pouring row of piles 2, form the water-stop curtain of closing, meet construction period foundation ditch inside anhydrous
Job requirements.Brick wall 9 has been built by laying bricks or stones around foundation ditch inwall, the height of brick wall 9 is less than 2 meters, after convenient construction in the top ring of annular Guan Liang 3
Phase temporary project is removed and surface management work.
Support construction step of the present utility model is as follows：
1st, it is determined that carrying out the construction of drill-pouring row of piles 2 on the ground of foundation ditch and campshed position first；
2nd, according to actual measurement underground water elevation, it is determined that carrying out minor diameter high-pressure rotary-spray at the gap of adjacent two cast-in-situ bored pile
The construction of stake 8；The pile body and campshed combination collective effect, form the water stop curtain structure of closing, meet in construction period foundation ditch
The anhydrous function demand in portion；
3rd, as requested from ground 1:After 1 slope excavates 3 meters, cast top annular Guan Liang 3 is buried between Guan Liang 3 and campshed
If malthoid layer 4, it is ensured that stake top is freely-supported force structure；The top of Guan Liang 3 sets the brick wall 9 less than 2 meters of height, facilitates the later stage interim
Engineering is removed and surface management work；After Guan Liang 3 reaches desired strength, excavation pit 1 to require height；
4th, foundation ditch 1 is excavated and finished, and foundation plane is when reaching construction requirement, carries out foundation ditch inside lining（Reinforced concrete liner 6 and steel
Underboarding 7 in muscle concrete）Pour, pouring thickness will meet jacking construction requirement, and push pipe is worn into position reserves, it is not necessary to pour
Build；
5th, after cast-in-situ bored pile, high-pressure rotary jet grouting pile and inner lining concrete intensity reach acceptance condition, break at push pipe
Stake enabling treatment：Open up push pipe on the drill-pouring pile body corresponding with construction position of pushing tube and wear duct, i.e., will according to construction
Ask, the drill-pouring pile body at reserved position of pushing tube is removed, and lining cutting second phase armored concrete, meet later stage jacking construction empty
Between require.
6th, after integer support structure reaches construction requirement, you can carry out the connection construction of push pipe jacking and two ends pipeline.
Claims (3)
1. a kind of jacking construction small size deep foundation pit supporting structure, it is characterised in that：Including along foundation ditch（1）Inwall sets cyclization
The drill-pouring row of piles of shape（2）, the drill-pouring row of piles（2）To pour the longitudinal section that is connected as a single entity be rectangle at top
Annular Guan Liang（3）, malthoid layer is provided with faying face of the cast-in-situ bored pile with annular Guan Liang（4）；Pushed up positioned at construction
Pipe（5）Drill-pouring row of piles inner side at top position is provided with reinforced concrete liner（6）, the foundation ditch bottom below construction push pipe
Portion is equipped with underboarding in reinforced concrete（7）；Push pipe is offered on the drill-pouring pile body corresponding with construction position of pushing tube to wear
Duct.
2. jacking construction according to claim 1 small size deep foundation pit supporting structure, it is characterised in that：Adjacent two drilling
High-pressure rotary jet grouting pile is provided with the gap of bored concrete pile（8）, the high-pressure rotary jet grouting pile（8）Diameter be less than cast-in-situ bored pile.
3. jacking construction according to claim 1 small size deep foundation pit supporting structure, it is characterised in that：In the annular
Guan Liang（3）Top ring has built brick wall by laying bricks or stones around the foundation ditch inwall（9）, the brick wall（9）Height be less than 2 meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621225984.4U CN206173974U (en) | 2016-11-15 | 2016-11-15 | Push pipe construction is with dark underground structure of small -size |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621225984.4U CN206173974U (en) | 2016-11-15 | 2016-11-15 | Push pipe construction is with dark underground structure of small -size |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206173974U true CN206173974U (en) | 2017-05-17 |
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ID=58683983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621225984.4U Active CN206173974U (en) | 2016-11-15 | 2016-11-15 | Push pipe construction is with dark underground structure of small -size |
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| Country | Link |
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| CN (1) | CN206173974U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108487930A (en) * | 2018-02-27 | 2018-09-04 | 中国矿业大学 | A kind of method that rotary churning pile administers deep Soft rock tunnel pucking |
-
2016
- 2016-11-15 CN CN201621225984.4U patent/CN206173974U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108487930A (en) * | 2018-02-27 | 2018-09-04 | 中国矿业大学 | A kind of method that rotary churning pile administers deep Soft rock tunnel pucking |
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