CN103174130A - Anti-sloughing method of sand layer of impact-cone concrete pile - Google Patents
Anti-sloughing method of sand layer of impact-cone concrete pile Download PDFInfo
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- CN103174130A CN103174130A CN2011104309843A CN201110430984A CN103174130A CN 103174130 A CN103174130 A CN 103174130A CN 2011104309843 A CN2011104309843 A CN 2011104309843A CN 201110430984 A CN201110430984 A CN 201110430984A CN 103174130 A CN103174130 A CN 103174130A
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Abstract
The invention discloses an anti-sloughing method of a sand layer of an impact-cone concrete pile. Cement is added into slurry of a slurry pool and mixed thoroughly, so that slurry liquid is prepared; in the process of punching construction, the prepared slurry liquid is poured into a hole; after the slurry liquid at the bottom of the hole is bonded with sand particles, the slurry liquid is pumped into a sediment pool for sand filtering, and is sent to the slurry pool to be manufactured again; and the steps are carried out continuously and circularly; The anti-sloughing method of the sand layer of the impact-cone concrete pile fully utilizes the adhesive bonding performance of the cement. On one hand, through the slurry liquid seeped into a hole wall, the adhesive bonding force among particles of the sand layer of the hole wall is increased, the satiability of the hole wall is strengthened largely, and the hole wall is effectively prevented from collapsing in the process of punching construction. On the other hand, the bonding effect between the slurry liquid and sand stones at the bottom of the hole is good, the sand stones at the bottom of the hole can be taken out completely, and the construction quality is guaranteed. In addition, the cement is used for improving the performance of ordinary slurry liquid, and has the advantages that material is convenient to draw, and the cost is low. The prepared slurry liquid has the advantages that the preparation is convenient, the stability is good, and the viscosity is easy to control.
Description
Technical field
The present invention relates to technical field of buildings, particularly a kind of anti-collapse method of layer of sand 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 many super dark concrete pouring of punched hole piles are arisen at the historic moment.According to its construction characteristic, exist between the particle of layer of sand to lack cementing power, the problem that during punched hole construction, hole wall easily caves in.At present, adopt the anti-collapse method of perfusion conventional mud in construction, effect is extremely undesirable, easily causes hole wall collapse, necking down, expansion neck, directly affects the construction quality of pile foundation, certainly will cause tremendous influence to the Stability Analysis of Structures of whole building.
Summary of the invention
The technical problem to be solved in the present invention is: a kind of increase layer of sand intergrain bond power is provided, strengthens wall stability, guarantee 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.
At first the present invention is achieved in that, mixes cement and fully mix in the mud of stock tank, makes slurries; Then, in the process of punched hole construction, with the slurry filling made in the hole; At last, after slurries and the sandstone of hole bottom are bonding, with its pump suction sedimentation basin filter sand, and send into stock tank and again make; Implement according to the above-mentioned steps continuous circulation, prevent that in punched hole construction, the hole wall layer of sand caves in.
In the anti-collapse method of the layer of sand of above-mentioned Punching Borehole Cast-in-place Concrete Pile, described cement weight accounts for 2%～5% of mud weight.
In the anti-collapse method of the layer of sand of aforesaid Punching Borehole Cast-in-place Concrete Pile, be equipped with the steel casing in the aperture, the steel casing is above the ground level more than 0.8m.
Owing to having adopted technique scheme, compared with the prior art, the present invention takes full advantage of the bonding capacity of cement, mixes the cement production systD slurries in conventional mud.On the one hand by infiltrating the slurries of hole wall, increased the bond between the particle of hole wall layer of sand, the stability of hole wall is significantly strengthened, hole wall collapse when effectively having prevented punched hole construction; On the other hand, the sandstone bonding effect of slurries and bottom, hole is better, the bottom sandstone all can be taken out of, has guaranteed construction quality.In addition, the present invention selects to adopt cement to improve the conventional mud performance, uses the method for additive with respect to routine, has to draw materials conveniently lower-cost advantage; And that the slurries of making have is easy to make, good stability, viscosity are easy to the advantages such as control.
Description of drawings:
Fig. 1 implements schematic diagram of the present invention;
Being labeled as of accompanying drawing: 1-punching apparatus, 2-hole wall, 3-sedimentation basin, 4-stock tank.
The specific embodiment:
Embodiments of the invention: the present invention as shown in Figure 1, builds at least one sedimentation basin 3 and stock tank 4 on the side, stake hole of Punching Borehole Cast-in-place Concrete Pile when implementing.At first, mix existing commercially available cement and fully mix in the mud of stock tank 4, making slurries, the slurry viscosity of producing can reach 25～30S.Then, adopting during existing commercially available punching apparatus 1 carries out the process of punched hole construction, with the slurry filling made in the hole; At last, after slurries and the sandstone of hole bottom are bonding, with its pump suction sedimentation basin 3 filter sands, and send into stock tank 4 and again make; Implement according to above-mentioned steps continuous circulation (slurries in the hole must keep continuous circulation, avoid the sand grains in slurries to precipitate, solidify), prevent that in punched hole construction, the hole wall layer of sand caves in.In order to make the slurries bonding effect of making better, be suitable for using, cement weight can be accounted for 2%～5% of mud weight and make.In order to make slurries to forming enough pressure in the hole, prevent that further in punched hole construction, the hole wall layer of sand caves in, existing commercially available steel casing can be installed in the aperture, more than the installation of steel casing is exceeded ground 0.8m.
Claims (3)
1. the anti-collapse method of the layer of sand of a Punching Borehole Cast-in-place Concrete Pile, is characterized in that: at first, mix cement and fully mix in the mud of stock tank, making slurries; Then, in the process of punched hole construction, with the slurry filling made in the hole; At last, after slurries and the sandstone of hole bottom are bonding, with its pump suction sedimentation basin filter sand, and send into stock tank and again make; Implement according to the above-mentioned steps continuous circulation, prevent that in punched hole construction, the hole wall layer of sand caves in.
2. the anti-collapse method of the layer of sand of Punching Borehole Cast-in-place Concrete Pile according to claim 1, it is characterized in that: described cement weight accounts for 2%～5% of mud weight.
3. the anti-collapse method of the layer of sand of Punching Borehole Cast-in-place Concrete Pile according to claim 1 and 2, it is characterized in that: be equipped with the steel casing in the aperture, the steel casing 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 true CN103174130A (en) | 2013-06-26 |
| CN103174130B CN103174130B (en) | 2016-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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) |
Cited By (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 (2)
| Title |
|---|
| 周鹏: ""泥浆护壁钻孔桩施工"", 《轻工设计》, no. 5, 31 May 2011 (2011-05-31) * |
| 李东 等: ""水泥粘土浆在地下的固结与硬化"", 《水利技术监督》, vol. 7, no. 2, 28 February 1999 (1999-02-28) * |
Cited By (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 |
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| Publication number | Publication date |
|---|---|
| CN103174130B (en) | 2016-06-22 |
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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. |
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