CN1272573A - Lime concrete composite pile and its construction method - Google Patents
Lime concrete composite pile and its construction method Download PDFInfo
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- CN1272573A CN1272573A CN 00105594 CN00105594A CN1272573A CN 1272573 A CN1272573 A CN 1272573A CN 00105594 CN00105594 CN 00105594 CN 00105594 A CN00105594 A CN 00105594A CN 1272573 A CN1272573 A CN 1272573A
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- pile
- rendzinas
- pile body
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- quicklime
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- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The present invention relates to a foundation soil stabilization method for deep-soft foundation soil, and is characterized by that the quicklime powder is mixed with soft foundation soil to form quicklime pile body, then the precast reinforced concrete core pile is inserted into the unhardened quicklime pile body or between the pile bodies to form lime concrete composite pile foundation or lime concrete composite foundation. Said invention integrates the advantages of reinforced concrete construction and quicklime powder spray-stirring construction, so that its engineering cost is low, its foundation bearing capacity is raised and its application range is extensive.
Description
The present invention relates to the foundation reinforcement method in the construction work, promptly a kind of concrete composite pile construction method.
In the existing building engineering, to the consolidation process of deep soft soil foundations such as mud, mucky soil, saturated soft viscous soil horizon, mostly adopt to insert prefabricated or in-site pouring steel bar concrete rigid pile is a composite foundation construction method, as the cement soil deep paddling process etc.Also have and adopt the lime powder spray mixing method.But directly in soft foundation, adopt the reinforced concrete pile cost higher, and adopt the castinplace pile accidents such as hole, necking down of also easily collapsing.There is the erosion problem of underground water more in addition in the coastal area, therefore directly use reinforced concrete pile very restricted concrete.And single cement mixing pile and lime powder jetting Beater operator method are limited and to reinforce the groundwork bearing capacity limited because of reinforcement depth, also are difficult to engineering demands sometimes.
Purpose of the present invention is exactly that a kind of consolidation process worker's method that is used for deep soft soil foundation will be provided, and to reduce cost, improves bearing capacity of foundation soil.
Foundation reinforcement method of the present invention is to treat that consolidated subsoil mixes quicklime and forms the rendzinas pile body, in still uncured rendzinas pile body or insert the stake of steel bar concrete core between pile body, forms lime concrete composite pile and its base or rendzinas composite foundation then.
As embodiments of the invention, during construction, can spray paddling process and lime powder is mixed treat that the consolidated subsoil soft soil horizon forms the rendzinas pile body, in uncured rendzinas pile body, be pressed into then or vibrate the stake of injection prefabricated reinforced concrete core, to form the composite pile foundation consolidated subsoil.Can also always solidify and be pressed between the rendzinas pile body or vibrate the stake of injection prefabricated reinforced concrete,, be applicable to case, raft foundation to form composite foundation jointly with the rendzinas pile body.
Suction, expansion, heat release that the quicklime in the weak soil is mixed in lime concrete composite pile and its construction method utilization of the present invention can improve the weak soil proterties, and it is compound with it to insert the steel bar concrete rigid pile, form composite pile foundation or composite foundation, combine the advantage of steel bar concrete preformed pile and two kinds of worker's methods of rendzinas agitation pile, remedied the deficiency of two kinds of worker's methods.Applied range, non-environmental-pollution, than the low 30-50% of reinforced concrete pile method construction costs, bearing capacity also obviously improves.
Embodiment describes the present invention below in conjunction with accompanying drawing.
Fig. 1 is a lime concrete composite pile and its base schematic diagram of the present invention.
Fig. 2 is a rendzinas composite foundation schematic diagram of the present invention.
As shown in Figure 1, on soft foundation 1, lime powder is mixed formation rendzinas pile body 2, with prefabricated steel bar concrete core stake 3 vibration injection rendzinas pile bodies 2, form lime concrete composite pile and its again with consolidated subsoil to spray paddling process.
As shown in Figure 2, on soft foundation 1, mix lime powder and form rendzinas pile body 2, and then insert the rendzinas composite foundation that reinforced concrete pile 3 is formed for case, raft foundation in the foundation soil between rendzinas pile body 21.
Claims (3)
1, a kind of foundation reinforcement method is characterized in that treating that consolidated subsoil mixes quicklime and forms the rendzinas pile body, in still uncured rendzinas pile body or insert the stake of steel bar concrete core between pile body, becomes lime concrete composite pile and its base or rendzinas composite foundation then.
2, foundation reinforcement method according to claim 1 is characterized in that it being with the injection paddling process lime powder to be mixed to treat that the consolidated subsoil soft soil horizon forms the rendzinas pile body.
3, foundation reinforcement method according to claim 1 and 2 is characterized in that after treating that quicklime formation rendzinas pile body is mixed in consolidated subsoil stake position, vibration injection prefabricated reinforced concrete core stake in uncured rendzinas pile body or between pile body then.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00105594 CN1272573A (en) | 2000-04-03 | 2000-04-03 | Lime concrete composite pile and its construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00105594 CN1272573A (en) | 2000-04-03 | 2000-04-03 | Lime concrete composite pile and its construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1272573A true CN1272573A (en) | 2000-11-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00105594 Pending CN1272573A (en) | 2000-04-03 | 2000-04-03 | Lime concrete composite pile and its construction method |
Country Status (1)
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| CN (1) | CN1272573A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619223A (en) * | 2012-04-09 | 2012-08-01 | 浙江大学城市学院 | Binding-enhanced type rigid and soft combined pile and construction method |
| CN103306275A (en) * | 2013-06-19 | 2013-09-18 | 潘建杰 | Construction method for preformed end bearing pile in lava region |
| CN105568806A (en) * | 2015-12-28 | 2016-05-11 | 上海建工一建集团有限公司 | Control method of large-area, large-load terrace differential settlement |
| CN113152426A (en) * | 2021-04-26 | 2021-07-23 | 河南省建院勘测设计有限公司 | Foundation treatment method for reconstruction and extension project based on cement-soil composite pile |
-
2000
- 2000-04-03 CN CN 00105594 patent/CN1272573A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619223A (en) * | 2012-04-09 | 2012-08-01 | 浙江大学城市学院 | Binding-enhanced type rigid and soft combined pile and construction method |
| CN102619223B (en) * | 2012-04-09 | 2014-11-05 | 浙江大学城市学院 | Binding-enhanced type rigid and soft combined pile and construction method |
| CN103306275A (en) * | 2013-06-19 | 2013-09-18 | 潘建杰 | Construction method for preformed end bearing pile in lava region |
| CN105568806A (en) * | 2015-12-28 | 2016-05-11 | 上海建工一建集团有限公司 | Control method of large-area, large-load terrace differential settlement |
| CN113152426A (en) * | 2021-04-26 | 2021-07-23 | 河南省建院勘测设计有限公司 | Foundation treatment method for reconstruction and extension project based on cement-soil composite pile |
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