CN108951639A - Bored concrete pile post-grouting method under a kind of ampelitic limestone geological environment - Google Patents
Bored concrete pile post-grouting method under a kind of ampelitic limestone geological environment Download PDFInfo
- Publication number
- CN108951639A CN108951639A CN201810962546.3A CN201810962546A CN108951639A CN 108951639 A CN108951639 A CN 108951639A CN 201810962546 A CN201810962546 A CN 201810962546A CN 108951639 A CN108951639 A CN 108951639A
- Authority
- CN
- China
- Prior art keywords
- bored concrete
- concrete pile
- geological environment
- pile
- ampelitic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 16
- 235000019738 Limestone Nutrition 0.000 title claims abstract description 15
- 239000006028 limestone Substances 0.000 title claims abstract description 15
- 238000007569 slipcasting Methods 0.000 claims abstract description 19
- 238000010276 construction Methods 0.000 claims abstract description 10
- 238000005553 drilling Methods 0.000 claims abstract description 9
- 238000001514 detection method Methods 0.000 claims abstract description 5
- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
- 239000002002 slurry Substances 0.000 claims description 9
- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 4
- 230000002787 reinforcement Effects 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 229920002472 Starch Polymers 0.000 claims 1
- 235000019698 starch Nutrition 0.000 claims 1
- 239000008107 starch Substances 0.000 claims 1
- 230000003014 reinforcing effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
Abstract
The present invention provides bored concrete pile post-grouting method under a kind of ampelitic limestone geological environment, it is characterized in that, advance drilling detection is carried out to stake position geological environment before filling pile construction, advance drilling can accurately judge the solution cavity position of this when detecting, when fabrication of reinforcing cage installs Grouting Pipe, endless tube Grouting Pipe is mounted on corresponding solution cavity middle position and stake bottom, slip casting is carried out to bored concrete pile after pile 3 days.To solve to use the problems such as excessive, construction is complex, higher cost for bored concrete pile pile body integrity, the influence of pile body frictional force, bearing capacity of pile tip, and Grouting Pipe under ampelitic limestone geological environment.Belong to foundation of civil work technical field of construction.
Description
Technical field
The present invention relates to a kind of bored concrete pile post-grouting methods, belong to foundation of civil work technical field of construction.
Background technique
Bored concrete pile grouting behind shaft or drift lining is one kind of bored concrete pile grouting behind shaft or drift lining under ampelitic limestone geological environment.Bored concrete pile grouting behind shaft or drift lining is to fill
Slip casting is carried out to bored concrete pile after infusing pile driving construction, Grouting Pipe is added in filling pile cage of reinforcement production, starts to infuse after pile 3 days
Slurry, the sequence of slip casting is upper side pipe → lower side pipe → end pipe.Its advantage is that an end, Pile side soil body (including sediment and mud can be made
Skin) it is reinforced, to improve single pile bearing capacity of single pile, reduce sedimentation.
Currently, the Grouting Pipe that bored concrete pile grouting behind shaft or drift lining uses is straight tube, under ampelitic limestone geological environment, after filling pile construction
Slip casting need to be carried out for pile body solution cavity position, when slip casting, each solution cavity position need at least install 3 Grouting Pipes, if pile body exists
Multiple solution cavities then need to install a large amount of Grouting Pipes, i.e. influence pile body structure, and it is complicated to construct, and higher cost is unfavorable to apply on site
Work.
Summary of the invention
It is an object of the invention to: bored concrete pile post-grouting method under a kind of ampelitic limestone geological environment is provided, to solve carbon
Bored concrete pile pile body integrity, the influence of pile body frictional force, bearing capacity of pile tip, and Grouting Pipe are used under matter limestone geology environment
Excessively, the problems such as construction is complex, higher cost.
To solve the above problems, bored concrete pile post-grouting method under such a ampelitic limestone geological environment of proposed adoption, is filling
Advance drilling detection is carried out to stake position geological environment before infusing pile driving construction, advance drilling can accurately judge the solution cavity position of this when detecting
It sets, when fabrication of reinforcing cage installs Grouting Pipe, endless tube Grouting Pipe is mounted on corresponding solution cavity middle position and stake bottom, pile 3 days
Slip casting is carried out to bored concrete pile afterwards.
In preceding method, each solution cavity and stake bottom are correspondingly arranged on an endless tube Grouting Pipe respectively；
In preceding method, the endless tube Grouting Pipe includes spiral helicine slip casting section and vertically arranged draws slurry section, spiral helicine note
Slurry section is installed on the middle position or stake bottom of solution cavity, and the lower end for drawing slurry section is connected with the upper end of slip casting section；
In preceding method, slip casting section is an integral structure with slurry section is drawn.
Compared with prior art, the present invention takes full advantage of advance drilling detection, has understood this 's before filling pile construction
Geological environment can accurately judge the position of solution cavity, and when installing Grouting Pipe, Grouting Pipe is accurately mounted on solution cavity region
Centre, effective solution influence of the ampelitic limestone geological environment for bored concrete pile；In addition, the present invention is using endless tube as slip casting
Pipe, as Grouting Pipe, reduces the installation of Grouting Pipe, is easy to make, and easy for installation, cost is relatively low relative to using straight tube.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the structural schematic diagram of endless tube Grouting Pipe.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, the present invention is made into one below in conjunction with attached drawing
The detailed description of step.
Embodiment:
Referring to Figures 1 and 2, the present embodiment provides bored concrete pile post-grouting method under a kind of ampelitic limestone geological environment, this method exists
Bored concrete pile 4 carries out advance drilling detection to stake position geological environment before constructing, and advance drilling can accurately judge that this 's is molten when detecting
Endless tube Grouting Pipe 3 is mounted on middle position and the stake of corresponding solution cavity 1 in 2 fabrication and installation Grouting Pipe of steel reinforcement cage by 1 position of hole
Bottom 5, each solution cavity 1 and stake bottom 5 are correspondingly arranged on an endless tube Grouting Pipe 3 respectively, and endless tube Grouting Pipe 3 includes spiral helicine note
Section 32 is starched in slurry section 31 and vertically arranged drawing, and spiral helicine slip casting section 31 is installed on the middle position or stake bottom 5 of solution cavity 1, draws slurry
The lower end of section 32 is connected with the upper end of slip casting section 31, and preferably slip casting section 31 is an integral structure with slurry section 32 is drawn, and pile 3 days
Slip casting is carried out to bored concrete pile 4 afterwards, 6 refer to stake top in Fig. 1.
The above embodiments are only used to illustrate and not limit the technical solutions of the present invention, although referring to above-described embodiment to this hair
It is bright to be described in detail, it will be apparent to an ordinarily skilled person in the art that: still the present invention can be modified or be waited
With replacement, without departing from the spirit or scope of the invention, or any substitutions, should all cover in power of the invention
In sharp claimed range.
Claims (4)
1. bored concrete pile post-grouting method under a kind of ampelitic limestone geological environment, it is characterised in that: to stake before bored concrete pile (4) construction
Position geological environment carries out advance drilling detection, and advance drilling can accurately judge 1 position of solution cavity of this when detecting, in steel reinforcement cage
(2) when fabrication and installation Grouting Pipe, endless tube Grouting Pipe (3) is mounted on corresponding solution cavity (1) middle position and stake bottom (5), pile 3 days
Slip casting is carried out to bored concrete pile (4) afterwards.
2. bored concrete pile post-grouting method under a kind of ampelitic limestone geological environment according to claim 1, it is characterised in that: each
Solution cavity (1) and stake bottom (5) are correspondingly arranged on an endless tube Grouting Pipe (3) respectively.
3. bored concrete pile post-grouting method under a kind of ampelitic limestone geological environment according to claim 2, it is characterised in that: described
Endless tube Grouting Pipe (3) includes that section (32) are starched in spiral helicine slip casting section (31) and vertically arranged drawing, spiral helicine slip casting section (31)
It is installed on the middle position or stake bottom (5) of solution cavity (1), the lower end for drawing slurry section 32 is connected with the upper end of slip casting section (31).
4. bored concrete pile post-grouting method under a kind of ampelitic limestone geological environment according to claim 3, it is characterised in that: slip casting
Section (31) and draw starch section (32) be an integral structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810962546.3A CN108951639A (en) | 2018-08-22 | 2018-08-22 | Bored concrete pile post-grouting method under a kind of ampelitic limestone geological environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810962546.3A CN108951639A (en) | 2018-08-22 | 2018-08-22 | Bored concrete pile post-grouting method under a kind of ampelitic limestone geological environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108951639A true CN108951639A (en) | 2018-12-07 |
Family
ID=64473677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810962546.3A Pending CN108951639A (en) | 2018-08-22 | 2018-08-22 | Bored concrete pile post-grouting method under a kind of ampelitic limestone geological environment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108951639A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07158062A (en) * | 1992-09-10 | 1995-06-20 | Kume Sekkei:Kk | Concrete pile and joint construction method for the pile and foundation slab |
| CN201722685U (en) * | 2010-02-05 | 2011-01-26 | 中国建筑第四工程局有限公司 | No-adhesive prestress and pile side rear grouting punching pile structure |
| CN203411979U (en) * | 2013-08-20 | 2014-01-29 | 河北建设勘察研究院有限公司 | Post-grouting device for pile side of cast-in-situ bored pile |
| CN106088086A (en) * | 2016-08-08 | 2016-11-09 | 中国电建集团贵阳勘测设计研究院有限公司 | The pile body post-mud-jacking bored pile of karst area deep foundation pit fender post supporting |
| CN206308699U (en) * | 2016-11-24 | 2017-07-07 | 北京市地质工程公司 | Dregs area slope protection pile fixed section grouting and reinforcing device |
-
2018
- 2018-08-22 CN CN201810962546.3A patent/CN108951639A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07158062A (en) * | 1992-09-10 | 1995-06-20 | Kume Sekkei:Kk | Concrete pile and joint construction method for the pile and foundation slab |
| CN201722685U (en) * | 2010-02-05 | 2011-01-26 | 中国建筑第四工程局有限公司 | No-adhesive prestress and pile side rear grouting punching pile structure |
| CN203411979U (en) * | 2013-08-20 | 2014-01-29 | 河北建设勘察研究院有限公司 | Post-grouting device for pile side of cast-in-situ bored pile |
| CN106088086A (en) * | 2016-08-08 | 2016-11-09 | 中国电建集团贵阳勘测设计研究院有限公司 | The pile body post-mud-jacking bored pile of karst area deep foundation pit fender post supporting |
| CN206308699U (en) * | 2016-11-24 | 2017-07-07 | 北京市地质工程公司 | Dregs area slope protection pile fixed section grouting and reinforcing device |
Non-Patent Citations (1)
| Title |
|---|
| 许晓英;: "冲(钻)孔灌注桩后注浆技术在岩溶地区的应用" * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181207 |