CN103352460B - Layered soft foundation treatment construction process - Google Patents
Layered soft foundation treatment construction process Download PDFInfo
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- CN103352460B CN103352460B CN201310284278.1A CN201310284278A CN103352460B CN 103352460 B CN103352460 B CN 103352460B CN 201310284278 A CN201310284278 A CN 201310284278A CN 103352460 B CN103352460 B CN 103352460B
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Abstract
The invention provides a layered soft foundation treatment construction process, wherein in a section needing to be treated, a space needed by a project is excavated by adopting a manual or mechanical method, and the excavated in-situ soft soil and a sludge curing agent are stirred to be uniformly mixed, so that the anti-seepage and water-stopping functions of a soil body are enhanced; the layered construction process comprises the following steps: firstly, paving a layer of curing agent at the bottom of the excavated space, then paving the stirred soil body on the curing agent layer in layers, flattening the stirred soil body by using flattening equipment after each layer of the stirred soil body is paved, then paving another layer of the stirred soil body, paving 2-5 layers of the stirred soil body, wherein the thickness of the paved stirred soil body is 30 cm; the sludge curing agent comprises powder and liquid raw materials, wherein the powder comprises cement clinker, slag or slag, lime, gypsum and sulfate; the liquid agent comprises polyacrylamide, polyaluminium chloride, mannitol, lignosulfonate, alkylphenol ethoxylates, tannic acid, humate, alpha-olefin sulfonate and the like.
Description
Technical field
The present invention is a kind of Foundation Treatment technique being applicable to uneven strata and soft soil layer, specifically refers to a kind of layer-stepping construction of soft soil treatment technique.
Background technology
At present, the similar embankment consolidation technology of domestic use mainly contains following several: 1) broken stone pile method: utilize vibration or the mode of impact, pore-forming in soft foundation, then inserts the materials such as sand, gravel, cobble, rubble, forms the method for processing foundation of close sand stone mar after extruding.This method is not suitable for weak cohesive soil ground.2) jet grounting: injectant is formed high pressure jet stream, by cutting and the mixing of high pressure jet stream, makes hardener and soil body mixing, with soil mass consolidation.This method construction period is long, and cost is high.3) powder spray piling method: utilize powder spraying stirring rig to be sprayed into by powder curing compound in soft scholar's ground, by soft scholar and curing compound action of forced stirring, makes soft soil consolidation become to have the cement pile body of some strength and form compound foundation.This method lack of homogeneity, intensity is low, use complicated machinery.
Summary of the invention
For solving the problem, the utility model provides a kind of layer-stepping construction of soft soil treatment technique.
Concrete solution is: needing location to be processed, first adopting artificial or mechanical method to dig out the space of requirement of engineering, the original position weak soil excavated and sludge curing agent being stirred, make it mix, and increases the water seepage prevention function of the soil body; Construction in layer process for: first lay one deck curing compound in the bottom in excavated space, afterwards soil body place Min layers after stirring is located in solidification oxidant layer, after often laying one deck stirring, the soil body uses flattening equipment to flatten it, re-lay another layer afterwards and stir the rear soil body, lay the soil body 2 ~ 5 layers after stirring, after the stirring of laying, soil body thickness is 30cm.
Further, the rear soil body is stirred in optimum laying is 3 layers.
Further, described sludge curing agent comprises pulvis and the liquor raw material of following parts by weight proportioning, described pulvis comprises the component of following weight proportion, clinker 30 ~ 60 weight portion, slag or slag 30 ~ 60 weight portion, lime 3 ~ 8 weight portion, gypsum 1 ~ 7 weight portion, sulfate 1-7 weight portion; Described liquor comprises the component of following weight proportion, polyacrylamide 5 ~ 30 weight portion, aluminium polychloride 0 ~ 20 weight portion, sweet mellow wine 0 ~ 30 weight portion, lignosulfonates 20 ~ 80 weight portion, lignosulfonates and iron, chromium ion complex compound 0 ~ 30 weight portion, APES 0.2 ~ 2 weight portion, tannic acid 0 ~ 10 weight portion, humate 0 ~ 10 weight portion, alpha-alkene sulfonate 0.2 ~ 2.5 weight portion.
Further, also include 0.2 ~ 2.0 weight portion in the pulvis raw material of described sludge curing agent, main component is the naphthalene series high-efficiency water-reducing agent of polymethine sodium naphthalene sulfonate.
Duration of the present invention is short, and cost is low, economy, and working procedure is simple, and can make full use of advantage, sealing and the good sealing effect of the soft scholar of original position, sand, gravel or block stone, rubble.And its construction equipment is simple and easy.The present invention is a kind of easy to operate, the construction of soft soil treatment technique that construction effect is good.
Detailed description of the invention
One, needing location to be processed, first adopts artificial or mechanical method to dig out the space of requirement of engineering, the original position weak soil excavated and sludge curing agent is stirred, make it mix, and increases the water seepage prevention function of the soil body; Construction in layer process for: first lay one deck curing compound in the bottom in excavated space, afterwards soil body place Min layers after stirring is located in solidification oxidant layer, after often laying one deck stirring, the soil body uses flattening equipment to flatten it, re-lay another layer afterwards and stir the rear soil body, lay the soil body 2 ~ 5 layers after stirring, after the stirring laid, soil body thickness is 30cm, and it is 3 layers that the rear soil body is stirred in optimum laying.
Different composition proportion can be used for sludge curing agent.
Embodiment 1: a kind of sludge curing agent, is made up of pulvis and liquor, wherein the composition of pulvis and liquor and proportioning as described below:
Described pulvis comprises the component of following weight proportion, clinker 30kg, slag or slag 30kg, lime 3kg, gypsum 1kg, sulfate 1kg; Described liquor comprises the component of following weight proportion, polyacrylamide 5kg, lignosulfonates 20kg, APES 0.2kg, alpha-alkene sulfonate 0.2kg.
The polymethine sodium naphthalene sulfonate naphthalene series high-efficiency water-reducing agent of 0.2kg is included in pulvis.
Embodiment 2: a kind of sludge curing agent, is made up of pulvis and liquor, wherein the composition of pulvis and liquor and proportioning as described below:
Clinker 60kg, slag or slag 60kg, lime 8kg, gypsum 7kg, sulfate 7kg; Described liquor comprises the component of following weight proportion: polyacrylamide 30kg, aluminium polychloride 20kg, sweet mellow wine 30kg, lignosulfonates 80kg, lignosulfonates and iron, chromium ion complex compound 30kg, APES 2kg, tannic acid 10kg, humate 10kg, alpha-alkene sulfonate 2.5kg.
The polymethine sodium naphthalene sulfonate naphthalene series high-efficiency water-reducing agent of 2.0kg is included in pulvis.
Embodiment 3: a kind of sludge curing agent, is made up of pulvis and liquor, wherein the composition of pulvis and liquor and proportioning as described below:
Clinker 45kg, slag or slag 45kg, lime 5kg, gypsum 4kg, sulfate 4kg; Described liquor comprises the component of following weight proportion: polyacrylamide 5kg, aluminium polychloride 5kg, sweet mellow wine 5kg, lignosulfonates 50kg, lignosulfonates and iron, chromium ion complex compound 5kg, APES 1.1kg, tannic acid 1kg, humate 2kg, alpha-alkene sulfonate 1.3kg.
The polymethine sodium naphthalene sulfonate naphthalene series high-efficiency water-reducing agent of 1.1kg is included in pulvis.
Claims (4)
1. a layer-stepping construction of soft soil treatment technique, it is characterized in that: needing location to be processed, first adopting artificial or mechanical method to dig out the space of requirement of engineering, the original position weak soil excavated and sludge curing agent are stirred, make it mix, increase the water seepage prevention function of the soil body; Construction in layer process for: first lay one deck curing compound in the bottom in excavated space, afterwards soil body place Min layers after stirring is located in solidification oxidant layer, after often laying one deck stirring, the soil body uses flattening equipment to flatten it, re-lay another layer afterwards and stir the rear soil body, lay the soil body 2 ~ 5 layers after stirring, after the stirring of laying, soil body thickness is 30cm.
2. a kind of layer-stepping construction of soft soil treatment technique according to claim 1, is characterized in that: it is 3 layers that the rear soil body is stirred in optimum laying.
3. a kind of layer-stepping construction of soft soil treatment technique according to claim 1, it is characterized in that: described sludge curing agent comprises pulvis and the liquor raw material of following parts by weight proportioning, described pulvis comprises the component of following weight proportion, clinker 30 ~ 60 weight portion, slag or slag 30 ~ 60 weight portion, lime 3 ~ 8 weight portion, gypsum 1 ~ 7 weight portion, sulfate 1-7 weight portion; Described liquor comprises the component of following weight proportion, polyacrylamide 5 ~ 30 weight portion, aluminium polychloride 0 ~ 20 weight portion, sweet mellow wine 0 ~ 30 weight portion, lignosulfonates 20 ~ 80 weight portion, lignosulfonates and iron, chromium ion complex compound 0 ~ 30 weight portion, APES 0.2 ~ 2 weight portion, tannic acid 0 ~ 10 weight portion, humate 0 ~ 10 weight portion, alpha-alkene sulfonate 0.2 ~ 2.5 weight portion.
4. a kind of layer-stepping construction of soft soil treatment technique according to claim 3, it is characterized in that: also include 0.2 ~ 2.0 weight portion in the pulvis raw material of described sludge curing agent, main component is the naphthalene series high-efficiency water-reducing agent of polymethine sodium naphthalene sulfonate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310284278.1A CN103352460B (en) | 2013-07-08 | 2013-07-08 | Layered soft foundation treatment construction process |
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| CN201310284278.1A CN103352460B (en) | 2013-07-08 | 2013-07-08 | Layered soft foundation treatment construction process |
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| CN103352460A CN103352460A (en) | 2013-10-16 |
| CN103352460B true CN103352460B (en) | 2016-04-20 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2016358214B2 (en) * | 2015-11-16 | 2019-12-12 | Lavih GARZON | Method for forming a stable foundation ground |
| CN105417905B (en) * | 2015-12-08 | 2017-11-17 | 上海水源地建设发展有限公司 | A kind of lake water course in situ process for treating sludge based on underwater lawn modular system |
| CN107956219A (en) * | 2017-11-20 | 2018-04-24 | 河海大学 | One kind is used for the cured stir in situ paver of edaphon and its application method |
| CN108049271B (en) * | 2017-12-09 | 2020-04-17 | 温州振东园林工程有限公司 | Soft foundation treatment construction process |
| CN110835908A (en) * | 2018-08-16 | 2020-02-25 | 云南华坤装配式建筑有限公司 | Soft soil curing composite foundation treatment technology for assembled thin-wall light steel structure |
| CN109133831B (en) * | 2018-10-08 | 2021-06-01 | 西南科技大学城市学院 | Curing agent for slope stabilization and application thereof in slope curing |
| CN109183773B (en) * | 2018-10-29 | 2021-08-27 | 开普天（上海）岩土科技有限公司 | Construction method for improving foundation soil |
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| CN1737272A (en) * | 2005-08-31 | 2006-02-22 | 浙江建设职业技术学院 | Commercial articles light weight earth construction technique in soft base treatment |
| JP3765000B2 (en) * | 1998-03-10 | 2006-04-12 | 株式会社竹中工務店 | Ground improvement foundation method for soft ground. |
| CN101081718A (en) * | 2006-05-31 | 2007-12-05 | 北京中永基固化剂科技发展有限公司 | Sludge curing agent and application thereof |
| CN101748725A (en) * | 2009-12-22 | 2010-06-23 | 解贵 | Modification processing method by utilizing powdered coal clinker to carry out soft base soil body |
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| JP3765000B2 (en) * | 1998-03-10 | 2006-04-12 | 株式会社竹中工務店 | Ground improvement foundation method for soft ground. |
| CN1737272A (en) * | 2005-08-31 | 2006-02-22 | 浙江建设职业技术学院 | Commercial articles light weight earth construction technique in soft base treatment |
| CN101081718A (en) * | 2006-05-31 | 2007-12-05 | 北京中永基固化剂科技发展有限公司 | Sludge curing agent and application thereof |
| CN101748725A (en) * | 2009-12-22 | 2010-06-23 | 解贵 | Modification processing method by utilizing powdered coal clinker to carry out soft base soil body |
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Effective date of registration: 20181017 Address after: 361000 room 2002, Haicang Road, Haicang District, Xiamen, Fujian, 2002 Patentee after: Dongfang Sheng Jie (Xiamen) Mechanical Engineering Co., Ltd. Address before: 300270 room 1406, block B, Xintiandi building, Tianjin Binhai New Area (Dagang). Patentee before: Tianjin Lianghong Machinery Co., Ltd. |
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Effective date of registration: 20220427 Address after: 310000 room 104, No. 6, Santaishan Road, Hangzhou, Zhejiang Patentee after: Hangzhou Jiayi Environmental Protection Technology Co.,Ltd. Address before: 361000 room 2002, Haicang Road, Haicang District, Xiamen, Fujian, 2002 Patentee before: Dongfang Shengjie (Xiamen) Mechanical Engineering Co.,Ltd. |
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