CN100355991C - Method for constructing composite foundation of piles and ground interactive slurry bonded dispersed body material - Google Patents
Method for constructing composite foundation of piles and ground interactive slurry bonded dispersed body material Download PDFInfo
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- CN100355991C CN100355991C CNB200510038903XA CN200510038903A CN100355991C CN 100355991 C CN100355991 C CN 100355991C CN B200510038903X A CNB200510038903X A CN B200510038903XA CN 200510038903 A CN200510038903 A CN 200510038903A CN 100355991 C CN100355991 C CN 100355991C
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Abstract
The present invention relates to a novel method for constructing composite foundations of piles of solid dispersed body materials of slurry with interactive pile soil. In the present invention, a drilling machine enters a foundation to designed depth for forming pile holes; slurry retaining walls are adopted on the peripheries of the pile holes; solid pipes of slurry are put into the pile holes; the aggregate is put into the pile holes; slurry liquid is injected into the pile holes by the solid pipes of slurry; after the slurry liquid and the aggregate are consolidated, a pile is formed and penetrated into a soil body on the periphery of the pile; a mattress layer is laid on the pile top for forming a composite foundation. The present invention solves the respective defects of low strength, or high construction cost, etc. of a composite foundation method of flexible piles and a composite foundation method of rigid piles or pile bodies in the prior art. In the present invention, the slurry liquid in the pile holes is consolidated with the aggregate into the pile; the pile is permeated into the soil body, and extends into three parts (the pile body, the consolidating body of the permeation of the slurry liquid and a natural soil body) of the composite foundation of the grouting pile for achieving the composite effects of better enhancing the bearing capacity of the foundation and reducing the foundation settlement; the present invention protects environments, and reduces the construction cost; the present invention is free from the limits of fields and space.
Description
Technical field
The present invention relates to a kind of composite foundation construction, the interactive slurry bonded dispersed body material pile composite foundation construction of particularly a kind of novel stake soil.
Background technology
Before the present invention, in engineering constructions such as road, bridge, composite foundation construction method is present soft soil foundation class methods commonly used, comprise flexible pile composite foundation method (as broken stone pile, lime soil pile and cement mixing pile etc.) and rigid pile composite foundation method (as the CFG stake, PHC stake and PCC stake etc.).Broken stone pile belongs to the bulk solid stake, and pile strength is low, but cost is relatively low.CFG stake and PHC stake etc. belong to rigid pile, the strength of the mixing pile height, and consolidation effect is good, but the cost height.In actual engineering construction,, generally need the stake type of medium adhesion strength to get final product as composite foundation technology.In addition, traditional pile foundation composite foundation stabilization technology is only brought into play the effect of pile foundation itself, and is very little to its inter-pile soil improvement, and inter-pile soil also can influence the quality of ground stabilization.Simultaneously, along with urban construction and industrial development, industrial refuses such as the big steel slag of building waste and steel mill such as a large amount of discarded fragments of brick, rubble need carry out landfill disposal, and this had both taken valuable and waste has been caused in limited arable land again, have also influenced ecological environment.
Summary of the invention
Purpose of the present invention just is to overcome above-mentioned defective, develops a kind of novel interactive slurry bonded dispersed body material pile composite foundation construction of stake soil.
Technical scheme of the present invention is:
A kind of native interactive slurry bonded dispersed body material pile composite foundation construction, its step is that rig enters ground to projected depth pile hole, stake hole periphery employing bentonite adds alkali and carries out artificial pulping retaining wall, in the stake hole, put into the solid pipe of slurry, the guider that feeds intake is set in the stake aperture, the guider that feeds intake is made by steel plate, before in the stake hole, dropping into aggregate, discharge water and clean a stake hole by starching solid pipe by grout pump, drop into aggregate then in the stake hole, aggregate can be rubble or fragment of brick or slag or its combination, injects slurries by starching solid pipe by grout pump in the stake hole, slurries are cement grouts, the fixed back of slurries and aggregate pile and penetrating in the soil body goes, and lays mattress layer on the stake top, and mattress layer is a sand stone layer, put into geo-grid in the sand stone layer, form composite foundation.
Advantage of the present invention and effect be slurry bonded dispersed body material pile composite foundation reinforcement mechanism be slurries except that in the stake hole with the fixed pile of aggregate, also part is infiltrated the soil body, improve the character of all natural soils of stake, so, the composite foundation stabilization district expands to three parts (pile body, slurry infiltration add the solid and the natural soil body) of grouting pile composite foundation by simple two parts of general rigid pile composite foundation (pile body and the natural soil body), reaches better raising bearing capacity of foundation soil and reduces the composite effect of foundation settlement; The present invention is a kind of soft base processing method that slurry injection technique adds bonded dispersed body material of introducing, and expanded diameter is 500～700mm, long the reaching more than the 30m of stake; Material of body of a pile can for refuses such as rubble, fragment of brick or slag as aggregate (discrete material), can effectively protect environment, reduce construction cost; Because the construction machinery height is not high, therefore not limited by site space.
Description of drawings
Fig. 1--structural principle schematic diagram of the present invention.
Fig. 2--stake top vertical view
Fig. 3--enforcement figure of the present invention.
The specific embodiment
Shown in Fig. 1,2 and 3, a kind of novel interactive slurry bonded dispersed body material pile composite foundation construction of stake soil, its construction sequence:
(1) pore-forming.The pore-forming of the solid stake of slurry requires basically identical with the pore forming process of general bored pile.Generally use the rig pore-forming, natural pulping retaining wall under the situation that is difficult for keeping at hole wall, adopts artificial pulping retaining wall.Adopt bentonite to add alkali in engineering is used and carry out artificial pulping retaining wall, the specific gravity control of mud is in certain scope.
(2) lapidation hole flushing.After boring is finished, carry out hole flushing at twice.Hole flushing is for the first time carried out before the input aggregate after boring finishes.Hole flushing for the second time is that aggregate limit hole flushing is thrown on the limit in throwing in the aggregate process, and twice hole flushing finished standard with different mud balance conducts respectively.In throwing in the process of aggregate, cause the hole of collapsing for preventing aggregate collision hole wall, the special use guider that feeds intake is set guides aggregate, its effect is to prevent that other foreign material from falling into boring and aggregate is vertically fallen at the bottom of the hole.
(3) grouting and reinforcing.The slurries parameter mainly comprises the match ratio of slurries, water/binder ratio.The slip casting of the solid stake of slurry at first will make slurries riddle the space of aggregate in the hole, so that fixed pile.Secondly a part of slurries soil body diffusion is towards periphery carried out grouting and reinforcing to pile peripheral earth, improves the intensity of natural ground soil.Can control the slip casting process with grouting amount, and adopt the limit to pull out the method for marginal not slurry.
(4) mattress layer setting.After treating that pile body solidifies, the mattress layer that rubble and geo-grid are formed is set on the stake top, thereby forms the interactive slurry bonded dispersed body material pile composite foundation of stake soil.
Concrete operations are as follows:
Utilize rig according to intended diameter, adopt the mud off resist technology to creep into to projected depth pile hole 1, place the guider of making of steel (plate) 2 that feeds intake in the stake aperture, and then in stake hole 1, put into slurry and manage 3 admittedly, admittedly managing 3 by grout pump 4 to slurry discharges water and cleans a stake hole 1, throw in graded broken stone or aggregates such as fragment of brick or slag 5 then, aggregate can be rubble or fragment of brick or slag or its combination; Admittedly manage 3 with slurry after aggregate 5 is thrown in and finished and inject slurries 6, slurries 6 are cement grouts, and slurries 6 carry out fixed back pile 7 with aggregate 5; Slurries 6 are except that grouting pile-forming in the hole 7, and also the soil body 8 permeates towards periphery; Take out slurry and manage 3 admittedly, treat that stake 7 is solidified after, lay the sand stone layer 9 about about 50 centimetres of thickness on stake 7 tops, put into geo-grid 10 in the sand stone layer 9, form the solid pile composite foundation mattress layer of slurry, constitute a kind of native interactive slurry bonded dispersed body material pile composite foundation.
Protection scope of the present invention is not limited only to the description of present embodiment.
Claims (1)
1. stake soil interactive slurry bonded dispersed body material pile composite foundation construction, its step is that rig enters ground to projected depth pile hole, stake hole periphery employing bentonite adds alkali and carries out artificial pulping retaining wall, in the stake hole, put into the solid pipe of slurry, the guider that feeds intake is set in the stake aperture, the guider that feeds intake is made by steel plate, before in the stake hole, dropping into aggregate, discharge water and clean a stake hole by starching solid pipe by grout pump, drop into aggregate then in the stake hole, aggregate can be rubble or fragment of brick or slag or its combination, injects slurries by starching solid pipe by grout pump in the stake hole, slurries are cement grouts, the fixed back of slurries and aggregate pile and penetrating in the soil body goes, and lays mattress layer on the stake top, and mattress layer is a sand stone layer, put into geo-grid in the sand stone layer, form composite foundation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510038903XA CN100355991C (en) | 2005-04-18 | 2005-04-18 | Method for constructing composite foundation of piles and ground interactive slurry bonded dispersed body material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510038903XA CN100355991C (en) | 2005-04-18 | 2005-04-18 | Method for constructing composite foundation of piles and ground interactive slurry bonded dispersed body material |
Publications (2)
| Publication Number | Publication Date |
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| CN1687535A CN1687535A (en) | 2005-10-26 |
| CN100355991C true CN100355991C (en) | 2007-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB200510038903XA Active CN100355991C (en) | 2005-04-18 | 2005-04-18 | Method for constructing composite foundation of piles and ground interactive slurry bonded dispersed body material |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101892665A (en) * | 2010-07-27 | 2010-11-24 | 中冶沈勘工程技术有限公司 | Construction method for grouting and vibro-replacement stone pile composite foundation |
| CN102505684B (en) * | 2011-11-02 | 2014-09-10 | 河海大学 | Hollow stiffness-core slurry-solidified discrete material pile and construction method thereof |
| CN102493470A (en) * | 2011-11-16 | 2012-06-13 | 中铁三局集团有限公司 | Foundation treatment method for simulating rigidly enlarged foundation |
| CN106007503A (en) * | 2016-05-20 | 2016-10-12 | 化学工业岩土工程有限公司 | Method for constructing construction waste pile |
| CN108797578A (en) * | 2018-07-12 | 2018-11-13 | 上海市城市建设设计研究总院（集团）有限公司 | Crushed stone grouting pile and its construction method with classification enlarged footing |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1121973A (en) * | 1994-05-13 | 1996-05-08 | 顾叙根 | Double compounded crushed stone pile and concrete cast-in-place pile foundation and its construction method |
| CN1066511C (en) * | 1995-08-30 | 2001-05-30 | 张作瑂 | After-grouting pile composite foundation and construction method thereof |
| CN1087051C (en) * | 1998-04-28 | 2002-07-03 | 徐松 | Technology for constructing foundation of artificially composite ground piles |
| CN1158434C (en) * | 2002-01-14 | 2004-07-21 | 河海大学 | Soft foundation composite ground base construction method for field pouring pipe pile with large diameter |
| CN1195130C (en) * | 2002-09-10 | 2005-03-30 | 周同和 | Sand concrete free small pile foundation consolidation process by stone throwing and squeezing |
-
2005
- 2005-04-18 CN CNB200510038903XA patent/CN100355991C/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1121973A (en) * | 1994-05-13 | 1996-05-08 | 顾叙根 | Double compounded crushed stone pile and concrete cast-in-place pile foundation and its construction method |
| CN1066511C (en) * | 1995-08-30 | 2001-05-30 | 张作瑂 | After-grouting pile composite foundation and construction method thereof |
| CN1087051C (en) * | 1998-04-28 | 2002-07-03 | 徐松 | Technology for constructing foundation of artificially composite ground piles |
| CN1158434C (en) * | 2002-01-14 | 2004-07-21 | 河海大学 | Soft foundation composite ground base construction method for field pouring pipe pile with large diameter |
| CN1195130C (en) * | 2002-09-10 | 2005-03-30 | 周同和 | Sand concrete free small pile foundation consolidation process by stone throwing and squeezing |
Non-Patent Citations (1)
| Title |
|---|
| 建筑施工手册(缩印本) 《建筑施工手册》(第四版)编写组，425.427,430，中国建筑工业出版社 2003 * |
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| CN1687535A (en) | 2005-10-26 |
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