CN103174130B - A kind of layer of sand anti-collapse method of Punching Borehole Cast-in-place Concrete Pile - Google Patents
A kind of layer of sand anti-collapse method of Punching Borehole Cast-in-place Concrete Pile Download PDFInfo
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- CN103174130B CN103174130B CN201110430984.3A CN201110430984A CN103174130B CN 103174130 B CN103174130 B CN 103174130B CN 201110430984 A CN201110430984 A CN 201110430984A CN 103174130 B CN103174130 B CN 103174130B
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Abstract
The invention discloses the anti-collapse method of the layer of sand of a kind of Punching Borehole Cast-in-place Concrete Pile。The mud of stock tank mix cement and is sufficiently mixed, making serosity；In the process of punched hole construction, by the slurry filling made in hole；After the bonding of the serosity bottom hole and sand grains, its pumping is entered sedimentation tank filter sand, and send into stock tank and again make；Enforcement is circulated continuously according to above-mentioned steps。The present invention takes full advantage of the bonding capacity of cement, on the one hand by penetrating into the serosity of hole wall, adds the bond between the granule of hole wall layer of sand, makes the stability of hole wall significantly be strengthened, effectively prevent hole wall collapse during punched hole construction；On the other hand, the sandstone bonding effect bottom serosity and hole is better, can all be taken out of by bottom sandstone, it is ensured that construction quality。It addition, the present invention selects to adopt cement to improve conventional mud performance, have and draw materials conveniently, lower-cost advantage；And the serosity made has the advantages such as easy to make, good stability, viscosity are easily controllable。
Description
Technical field
The present invention relates to technical field of buildings, particularly the anti-collapse method of the layer of sand of a kind of Punching Borehole Cast-in-place Concrete Pile。
Background technology
Along with the development of national economy, urban construction is advanced by leaps and bounds, and Development of High-rise Buildings is rapid, and the concrete pouring of punched hole piles of many ultra-deep is arisen at the historic moment。According to its construction characteristic, there is shortage cementing power, the problem that during punched hole construction, hole wall easily caves between the granule of layer of sand。At present, adopting the anti-collapse method of perfusion conventional mud in construction, effect is extremely undesirable, it is easy to causes hole wall collapse, necking down, expansion neck, directly affects the construction quality of pile foundation, the Stability Analysis of Structures of whole building certainly will be caused tremendous influence。
Summary of the invention
The technical problem to be solved in the present invention is: provides one to increase layer of sand intergrain bond power, strengthens wall stability, it is ensured that the anti-collapse method of layer of sand of the Punching Borehole Cast-in-place Concrete Pile of construction quality, to overcome the deficiencies in the prior art。
First the present invention is achieved in that, mixes cement and is sufficiently mixed, make serosity in the mud of stock tank；Then, in the process of punched hole construction, by the slurry filling made in hole；Finally, after the bonding of the serosity bottom hole and sandstone, its pumping is entered sedimentation tank filter sand, and send into stock tank and again make；Enforcement is circulated continuously, it is prevented that in punched hole construction, hole wall layer of sand caves according to above-mentioned steps。
In the anti-collapse method of layer of sand of above-mentioned Punching Borehole Cast-in-place Concrete Pile, described cement weight accounts for the 2%～5% of mud weight。
In the anti-collapse method of layer of sand of aforesaid Punching Borehole Cast-in-place Concrete Pile, being equipped with steel pile casting in aperture, steel pile casting is above the ground level more than 0.8m。
Owing to have employed technique scheme, compared with the prior art, the present invention takes full advantage of the bonding capacity of cement, mixes cement production systD serosity in conventional mud。On the one hand by penetrating into the serosity of hole wall, add the bond between the granule of hole wall layer of sand, make the stability of hole wall significantly be strengthened, effectively prevent hole wall collapse during punched hole construction；On the other hand, the sandstone bonding effect bottom serosity and hole is better, can all be taken out of by bottom sandstone, it is ensured that construction quality。It addition, the present invention selects to adopt cement to improve conventional mud performance, relative to the method that routine uses additive, have and draw materials conveniently, lower-cost advantage；And the serosity made has the advantages such as easy to make, good stability, viscosity are easily controllable。
Accompanying drawing illustrates:
Fig. 1 is the schematic diagram implementing the present invention；
Being labeled as of accompanying drawing: 1-punching apparatus, 2-hole wall, 3-sedimentation tank, 4-stock tank。
Detailed description of the invention:
Embodiments of the invention: the present invention implement time as it is shown in figure 1, build at least one sedimentation tank 3 and stock tank 4 by the stake holes of Punching Borehole Cast-in-place Concrete Pile。First, mixing existing commercially available cement in the mud of stock tank 4 and be sufficiently mixed, making serosity, the slurry viscosity produced can reach 25～30S。Then, adopting existing commercially available punching apparatus 1 to be punched out in the process of construction, by the slurry filling made in hole；Finally, after the bonding of the serosity bottom hole and sandstone, its pumping is entered sedimentation tank 3 filter sand, and send into stock tank 4 and again make；(serosity in hole must keep circulation continuously, it is to avoid the sand sedimentation in serosity, solidification) enforcement is circulated continuously, it is prevented that in punched hole construction, hole wall layer of sand caves according to above-mentioned steps。In order to make the serosity bonding effect made better, it is adapted in use to, cement weight can be accounted for the 2%～5% of mud weight and make。In order to make serosity to forming enough pressure in hole, prevent hole wall layer of sand in punched hole construction from caving in further, existing commercially available steel pile casting can be installed in aperture, steel pile casting is installed beyond ground more than 0.8m。
Claims (2)
1. the anti-collapse method of the layer of sand of a Punching Borehole Cast-in-place Concrete Pile, it is characterised in that: first, mixing cement and be sufficiently mixed in the mud of stock tank, making serosity, described cement weight accounts for the 2%～5% of mud weight；Then, in the process of punched hole construction, by the slurry filling made in hole；Finally, after the bonding of the serosity bottom hole and sandstone, its pumping is entered sedimentation tank filter sand, and send into stock tank and again make；Enforcement is circulated continuously, it is prevented that in punched hole construction, hole wall layer of sand caves according to above-mentioned steps。
2. the anti-collapse method of the layer of sand of Punching Borehole Cast-in-place Concrete Pile according to claim 1, it is characterised in that: be equipped with steel pile casting in aperture, steel pile casting is above the ground level more than 0.8m。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110430984.3A CN103174130B (en) | 2011-12-21 | 2011-12-21 | A kind of layer of sand anti-collapse method of Punching Borehole Cast-in-place Concrete Pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110430984.3A CN103174130B (en) | 2011-12-21 | 2011-12-21 | A kind of layer of sand anti-collapse method of Punching Borehole Cast-in-place Concrete Pile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103174130A CN103174130A (en) | 2013-06-26 |
| CN103174130B true CN103174130B (en) | 2016-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110430984.3A Active CN103174130B (en) | 2011-12-21 | 2011-12-21 | A kind of layer of sand anti-collapse method of Punching Borehole Cast-in-place Concrete Pile |
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| CN (1) | CN103174130B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107489143A (en) * | 2017-08-30 | 2017-12-19 | 中建四局第建筑工程有限公司 | A kind of concrete pouring of punched hole piles structure and its plain fill layer leakproof paste-making method |
| CN108301403A (en) * | 2018-01-04 | 2018-07-20 | 中国建筑第八工程局有限公司 | Subway drilling cast-in-place pile construction method |
| CN109113056A (en) * | 2018-09-04 | 2019-01-01 | 中铁大桥局集团有限公司 | A method of preventing bored pile construction process middle hole wall and collapses |
| CN111302710A (en) * | 2020-03-03 | 2020-06-19 | 中国五冶集团有限公司 | Large-diameter overlong punching slurry in dense pebble bed area |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1075521A (en) * | 1993-02-23 | 1993-08-25 | 何庆林 | Pile-making method of concrete-cast drillhole |
| CN1101392A (en) * | 1993-10-06 | 1995-04-12 | 刘孝先 | Pouring process for reinforced concrete piles |
| CN1274788A (en) * | 2000-05-24 | 2000-11-29 | 王平 | Continuous wall constructing method including drilling holes and late grouting |
| RU2270899C2 (en) * | 2004-04-22 | 2006-02-27 | Общество с ограниченной ответственностью "Магнит" | Method and device for concrete mix treatment during bored pile erection |
-
2011
- 2011-12-21 CN CN201110430984.3A patent/CN103174130B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1075521A (en) * | 1993-02-23 | 1993-08-25 | 何庆林 | Pile-making method of concrete-cast drillhole |
| CN1101392A (en) * | 1993-10-06 | 1995-04-12 | 刘孝先 | Pouring process for reinforced concrete piles |
| CN1274788A (en) * | 2000-05-24 | 2000-11-29 | 王平 | Continuous wall constructing method including drilling holes and late grouting |
| RU2270899C2 (en) * | 2004-04-22 | 2006-02-27 | Общество с ограниченной ответственностью "Магнит" | Method and device for concrete mix treatment during bored pile erection |
Non-Patent Citations (1)
| Title |
|---|
| "水泥粘土浆在地下的固结与硬化";李东 等;《水利技术监督》;19990228;第7卷(第2期);第15-第16页 * |
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| CN103174130A (en) | 2013-06-26 |
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Effective date of registration: 20180314 Address after: 523000 Guangdong city of Dongguan Province East Industrial Park City Park Jiangnan Avenue East Patentee after: Guangdong Zhongjian new type building component Co., Ltd. Address before: Ganping Gan Yin Tong Road 550006 Guizhou city of Guiyang province No. 4 Patentee before: China Construction Fourth Engineering Bureau Ltd. |