CN106592620A - Construction method of coordination device for guaranteeing pile-soil co-action - Google Patents
Construction method of coordination device for guaranteeing pile-soil co-action Download PDFInfo
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- CN106592620A CN106592620A CN201611165359.XA CN201611165359A CN106592620A CN 106592620 A CN106592620 A CN 106592620A CN 201611165359 A CN201611165359 A CN 201611165359A CN 106592620 A CN106592620 A CN 106592620A
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- pressure
- bearing steel
- soil
- steel case
- pile
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a construction method of a coordination device for guaranteeing pile-soil co-action. The construction method comprises the following steps: sequentially constructing an engineering pile and a pressure-bearing steel box located above the engineering pile from bottom to top in foundation soil, and installing a reserved grouting pipe at the top of the pressure-bearing steel box; and constructing a foundation slab and an upper structure above the pressure-bearing steel box, enabling the pressure-bearing steel box to generate compressive deformation with the foundation soil due to a vertical load generated by the foundation slab and the upper structure, and grouting in the pressure-bearing steel box through the reserved grouting pipe when the foundation soil is compressed to a limit value, thus realizing the pile-soil co-action. The construction method disclosed by the invention has the advantages of being simple in structure, simple and convenient to construct, convenient to calculate, high in reliability, and capable of reliably realizing the pile-soil co-action.
Description
Technical field
The invention belongs to the realm of building construction, and in particular to a kind of conditioning unit for guaranteeing pile soil common action is constructed
Method.
Background technology
Pile foundation is a kind of traditional base form, and more universal method for designing is all by work by upper load at present
Journey stake is undertaking, and does not consider the carrying effect of foundation soil under basis.In recent years, with the continuous accumulation of engineering experience, ground
The bearing capacity of soil is gradually paid attention to, and how to play the bearing capacity of foundation soil, reduces the quantity of engineering engineering pile, so as to save work
Journey cost is the new problem that current engineering circles are explored.
To ensure pile soil common action, pile soil common action is realized, the implementation method of the pile soil common action for proposing at present
It is numerous, displacement method, stiffness equivalent method, pre-add displacement method etc. are such as compensated, especially by reserved headroom, mattress layer is set, is arranged soft
Property the method such as material realize.As various material mechanical performances differ greatly, calculate inaccurate, the reason such as constructional difficulties is most of
It is unable to reach the purpose of stake soil pile soil common action.
The content of the invention
The purpose of the present invention is according in place of above-mentioned the deficiencies in the prior art, there is provided a kind of to be used to guarantee pile soil common action
Conditioning unit construction method, the construction method by between engineering pile and sole plate arrange can be under vertical uniform load q
The pressure-bearing steel case that compression occurs jointly with foundation soil realizes pile soil common action with reliable.
The object of the invention is realized being completed by technical scheme below：
A kind of conditioning unit construction method for guaranteeing pile soil common action, it is characterised in that comprise the following steps：In ground
In soil, construction work stake and the pressure-bearing steel case being positioned above successively from bottom to top, and pacify at the top of the pressure-bearing steel case
The reserved Grouting Pipe of dress；Construct above the pressure-bearing steel case sole plate and superstructure, the vertical loads produced by both
Make the pressure-bearing steel case that compression occur jointly with the foundation soil, when the foundation soil is compressed to ultimate value, by institute
Reserved Grouting Pipe is stated to slip casting inside the pressure-bearing steel case, pile soil common action is realized.
The pressure-bearing steel case includes cylindrical sidewall, upper sealing plate and lower shrouding；The upper sealing plate and the lower shrouding are opened
It is provided with the reserved circular hole that some connection reinforcing bars for the engineering pile are passed through.
The cross section of the cylindrical sidewall is similar round or class rectangle.
The connection reinforcing bar in the engineering pile sequentially passes through the described pre- of the lower shrouding and the upper envelope steel plate
Circular hole is stayed, the engineering pile, the pressure-bearing steel case and the sole plate are connected structure.
The wall thickness of the pressure-bearing steel case is controlled, so that the surrender bearing capacity of the pressure-bearing steel case is corresponding to by the basic bottom
Upper load and compression deformation of ground soil ultimate value that plate is applied with the superstructure.
It is an advantage of the invention that simple structure, easy construction, be easy to calculate, reliability it is big, can reliably realize stake soil
Collective effect.
Description of the drawings
Fig. 1 is the side view of the pile foundation structure in the present invention；
Fig. 2 is the top view of the pressure-bearing steel case in the present invention；
Fig. 3 is the side view after the completion of the Construction of Engineering Pile in the present invention；
Fig. 4 is the side view after the pressure-bearing steel case installation in the present invention；
Fig. 5 is sole plate and the side view after the completion of Superstructure Construction in the present invention.
Specific embodiment
The feature and other correlated characteristics of the present invention is described in further detail by embodiment below in conjunction with accompanying drawing, with
It is easy to the understanding of technical staff of the same trade：
Such as Fig. 1-5, in figure, labelling 1-12 is respectively：Engineering pile 1, pressure-bearing steel case 2, sole plate 3, slip casting implant 4, tubular side
Wall 5, upper sealing plate 6, lower shrouding 7, connection reinforcing bar 8, reserved circular hole 9, reserved injected hole 10, reserved Grouting Pipe 11, superstructure 12.
Embodiment：As shown in figure 1, the present embodiment is specifically related to a kind of conditioning unit for guaranteeing pile soil common action applying
Work method, the method are comprised the following steps：
1）As shown in Figure 1,3, the construction work stake 1 in foundation soil；The top of engineering pile 1 is provided with the connection steel for extending upward
Muscle 8, connecting reinforcing bar 8 is used to connect the sole plate 3 of subsequent construction；After the completion of engineering pile 1 is constructed, need to each engineering pile
1 pile crown carries out leveling, it is ensured that each 1 uniform force of engineering pile.
2）As shown in Fig. 1,2,4, pressure-bearing steel case 2 is installed on the top of engineering pile 1；Pressure-bearing steel case 2 include cylindrical sidewall 5,
Upper sealing plate 6 and lower shrouding 7；It is reserved that upper sealing plate 6 and lower shrouding 7 offer that the connection reinforcing bar 8 of some confession engineering piles 1 passes through
Circular hole 9；9 a diameter of 20mm to 35mm of reserved circular hole；The cross section of cylindrical sidewall 5 is similar round or class rectangle；In installation process,
Connection reinforcing bar 8 in engineering pile 1 sequentially passes through the reserved circular hole 9 of lower shrouding 7 and upper sealing plate 6；It is further opened with upper sealing plate 6
Reserved injected hole 10, the bottom for reserving Grouting Pipe 11 insert the inside of pressure-bearing steel case 2 from reserved injected hole 10, reserve Grouting Pipe 11
Top higher than 3 upper surface of sole plate height.
3）As shown in Fig. 1,2,5, construct above pressure-bearing steel case 2 sole plate 3 and superstructure 12, sole plate 3
It is fixedly connected with the connection reinforcing bar 8 extended to above pressure-bearing steel case 2；After the completion of construction, 12 institute of sole plate 3 and superstructure
The vertical load of generation makes the foundation soil below pressure-bearing steel case 2 generation compression, and sole plate 3 also in vertical uniform load q
Lower generation compression further produces certain settling amount, that is to say, that pressure-bearing steel case 2 occurs compression jointly with foundation soil；
When ground soil pressure is reduced to ultimate value, the foundation soil for being compressed into ultimate value can be with shared top pressure-bearing steel case 2
The effect of load, by reserved Grouting Pipe 11 to the 2 inside slip casting of pressure-bearing steel case so that pressure-bearing steel case 2 forms solid stable stake
Body, so as to realize pile soil common action, additionally, the pressure-bearing steel case 2 that side wall occurs compression also can accordingly increase its stake
Side friction, and then improve its bearing capacity in foundation soil；After the completion of slip casting, the reserved Grouting Pipe 11 of closing proceeds
Construction.
It should be noted that when pressure-bearing steel case 2 is made, by adjusting the wall thickness of its cylindrical sidewall 5 so that it is determined that pressure-bearing
The surrender bearing capacity of steel case 2；That is, the wall thickness of the cylindrical sidewall 5 on pressure-bearing steel case 2 should be according to upper load and the foundation soil limit
Deformation values are determined, so that when the upper load by produced by sole plate 3 and superstructure 12 reaches pressure-bearing steel case 2
Surrender bearing capacity and foundation soil when being not up to ultimate deformation value, pressure-bearing steel case 2 produces compression, in company with foundation soil body altogether
With generation compression.
The Advantageous Effects of the present embodiment are：Simple structure, easy construction, be easy to calculate, reliability it is big, can be reliable
Realize pile soil common action.
Claims (5)
1. a kind of conditioning unit construction method for guaranteeing pile soil common action, it is characterised in that comprise the following steps：On ground
In base soil, construction work stake and the pressure-bearing steel case being positioned above successively from bottom to top, and at the top of the pressure-bearing steel case
Reserved Grouting Pipe is installed；Construct above the pressure-bearing steel case sole plate and superstructure, the vertical lotuses produced by both
Load makes the pressure-bearing steel case that compression occur jointly with the foundation soil, when the foundation soil is compressed to ultimate value, passes through
The reserved Grouting Pipe realizes pile soil common action to slip casting inside the pressure-bearing steel case.
2. a kind of conditioning unit construction method for guaranteeing pile soil common action according to claim 1, its feature exist
In：The pressure-bearing steel case includes cylindrical sidewall, upper sealing plate and lower shrouding；If the upper sealing plate and the lower shrouding are offered
The reserved circular hole that the dry connection reinforcing bar for the engineering pile is passed through.
3. a kind of conditioning unit construction method for guaranteeing pile soil common action according to claim 2, its feature exist
In：The cross section of the cylindrical sidewall is similar round or class rectangle.
4. a kind of conditioning unit construction method for guaranteeing pile soil common action according to claim 2, its feature exist
In：The connection reinforcing bar in the engineering pile sequentially passes through the described reserved circle of the lower shrouding and the upper envelope steel plate
Hole, the engineering pile, the pressure-bearing steel case and the sole plate are connected structure.
5. a kind of conditioning unit construction method for guaranteeing pile soil common action according to claim 1, its feature exist
In：Control the wall thickness of the pressure-bearing steel case so that the surrender bearing capacity of the pressure-bearing steel case corresponding to by the sole plate with
Upper load and compression deformation of ground soil ultimate value that the superstructure applies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611165359.XA CN106592620A (en) | 2016-12-16 | 2016-12-16 | Construction method of coordination device for guaranteeing pile-soil co-action |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611165359.XA CN106592620A (en) | 2016-12-16 | 2016-12-16 | Construction method of coordination device for guaranteeing pile-soil co-action |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106592620A true CN106592620A (en) | 2017-04-26 |
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ID=58801857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611165359.XA Pending CN106592620A (en) | 2016-12-16 | 2016-12-16 | Construction method of coordination device for guaranteeing pile-soil co-action |
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| CN (1) | CN106592620A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101487267A (en) * | 2009-01-14 | 2009-07-22 | 南京工业大学 | Support stiffness-adjustable pile-raft foundation and construction process |
| CN101608455A (en) * | 2008-06-17 | 2009-12-23 | 上海江欢成建筑设计有限公司 | Cavity backfill type pile soil bearing capacity adjusting device |
| JP2013019248A (en) * | 2011-07-14 | 2013-01-31 | Takenaka Komuten Co Ltd | Piled raft method |
| CN203559427U (en) * | 2013-10-30 | 2014-04-23 | 济南中建建筑设计院有限公司 | Settlement-adjustable piled raft foundation structure under combined action of pile and soil |
-
2016
- 2016-12-16 CN CN201611165359.XA patent/CN106592620A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101608455A (en) * | 2008-06-17 | 2009-12-23 | 上海江欢成建筑设计有限公司 | Cavity backfill type pile soil bearing capacity adjusting device |
| CN101487267A (en) * | 2009-01-14 | 2009-07-22 | 南京工业大学 | Support stiffness-adjustable pile-raft foundation and construction process |
| JP2013019248A (en) * | 2011-07-14 | 2013-01-31 | Takenaka Komuten Co Ltd | Piled raft method |
| CN203559427U (en) * | 2013-10-30 | 2014-04-23 | 济南中建建筑设计院有限公司 | Settlement-adjustable piled raft foundation structure under combined action of pile and soil |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170426 |