CN102733366A - Soft soil curing construction method - Google Patents
Soft soil curing construction method Download PDFInfo
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- CN102733366A CN102733366A CN2012102346753A CN201210234675A CN102733366A CN 102733366 A CN102733366 A CN 102733366A CN 2012102346753 A CN2012102346753 A CN 2012102346753A CN 201210234675 A CN201210234675 A CN 201210234675A CN 102733366 A CN102733366 A CN 102733366A
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Abstract
The invention discloses a soft soil curing construction method, comprising the following steps: braking and discharging water on soil surface; sinking by dewatering and draining; preparing dry fixing agents; planting into dry fixing agents; spraying foaming agents, detecting and so on. The soft soil curing construction method provided by the invention has the advantages of convenience in construction, high construction efficiency and good work effects, and a soil structure with low water content, strong degree of density and high bearing force is formed by the method, so that former soft weak soils qualitatively change.
Description
Technical field
The present invention relates to a kind of weak soil and solidify job practices.
Background technology
In recent years; Country and Jiangsu Province rise to strategic height to the coastal economy development, pay much attention to the coastal economy development problem, and have taked a series of measures to advance the coastal economy development; And China coastline is long; Be the longest country in coastline in the world, Jiangsu is in the riverbank, the Yellow River has more than 10 counties and cities near seashore, thereby the coastal economy development potentiality is very big.But because coastal soil property is alluvial deposit, quality is soft, water content is high, the modulus in compression coefficient is big, density is poor, bearing capacity is low, this to building engineering, the highway engineering construction difficulty is big, cost is high, has restricted the coastal economy development.
Summary of the invention
The object of the present invention is to provide a kind of easy construction, the weak soil of good working effect solidifies job practices.
Technical solution of the present invention is:
A kind of weak soil solidifies job practices, it is characterized in that: comprising:
(1) soil table is stopped and decided draining: according to test report, soil moisture content >=50 o'clock dispense alum at the soil property shallow-layer, per 100 ㎡ charity 1.2kg alum, and it is even to carry out mix with every 1.2kg alum and 100kg yellow ground during charity, adopts artificial charity then; Before charity, be one with 1000 ㎡ zones and get a little, the pool of drawing water is set, the hand excavation draws water after 48 hours when charity river sulfur acid aluminium potassium.Reduce the soil layer moisture content through drawing water;
(2) draining falls in open caisson: stop through soil table and decide behind the drainage procedure or confirm soil 35%≤moisture content≤50% o'clock through test, adopt the deep-well precipitation water discharge method to carry out that the well point is arranged, the well bucket is made, the well bucket is installed, the program of drawing water; The well point is arranged as a well point is set in per 50 ㎡, and the well bucket designs according to proposed building ground level planned well bucket height, and the well bucket highly is the half the of depth of building; The well bucket is a cylinder, and well internal diameter Ф>=1m, well bucket adopt common brick to make; Mortar-chalked joint is used in the slit; The jointing mortar is pressed sand and cement proportion 3:1 configuration, and sand is medium coarse sand, and cement is 325 ordinary Portland cements; The well bucket install to adopt mechanicalness mounting shaft casing to go within the steel drum, squeezes in the soil along the pile tube machine with vibration then, holds together out steel drum then, with the draining of drawing water of sunk water pump, soil moisture in layer is reduced to below 20% behind the right bucket;
(3) solidating agent configuration:, carry out the configuration of weak soil solidating agent simultaneously carrying out deep-well when falling row; The weak soil solidating agent is made up of cement, the sand of 30-60%, the lime of 0-40%, the flyash of 0-40%, the slag of 0-20%, the gypsum of 0-8%, the 0-5% smalls silicon-base oxide of 30-40%, and various materials are stirred;
(4) implant solidating agent: adopt dried spray method to implant, promote the stirring of dusting, the demand height of rising to bores again, rises to the demand absolute altitude and shuts down, and carries out second group of implantation more in this order.Implantation depth is 50% of a depth of building, and diameter is 50cm; The implantation spacing is 1.8m;
(5) spray polyurethane foams: spray with spray infusion air gun, spraying the degree of depth is 50% of depth of building, and spraying spacing is 1.8m;
(6) accomplish expiration 25 days when above operation, detect, get into the construction-engineering project construction sequence then.
Particle diameter >=the 1mm of said alum.
Easy construction of the present invention, efficiency of construction is high, and good working effect is handled through present technique, forms the soil structures that water content is low, compactness is strong, bearing capacity is high, makes former weak soil that the variation of matter take place.
Below in conjunction with embodiment the present invention is described further.
The specific embodiment
Embodiment 1:
A kind of weak soil solidifies job practices, comprising:
(1) the soil table is stopped and is decided draining: according to test report; Soil moisture content >=50 o'clock dispense alum at soil property shallow-layer (the soil property degree of depth 20 ~ 50cm position), per 100 ㎡ charity 1.2kg alum; It is even to carry out mix with every 1.2kg alum and 100kg yellow ground during charity, adopts artificial charity then; Before charity, be one with 1000 ㎡ zones and get a little, the pool of drawing water is set, the hand excavation draws water after 48 hours when charity river sulfur acid aluminium potassium.Reduce the soil layer moisture content through drawing water;
(2) draining falls in open caisson: stop through soil table and decide behind the drainage procedure or confirm soil 35%≤moisture content≤50% o'clock through test, adopt the deep-well precipitation water discharge method to carry out that the well point is arranged, the well bucket is made, the well bucket is installed, the program of drawing water; The well point is arranged as a well point is set in per 50 ㎡, and the well bucket designs according to proposed building ground level planned well bucket height, and the well bucket highly is the half the of depth of building; The well bucket is a cylinder, and well internal diameter Ф>=1m, well bucket adopt common brick to make; Mortar-chalked joint is used in the slit; The jointing mortar is pressed sand and cement proportion 3:1 configuration, and sand is medium coarse sand, and cement is 325 ordinary Portland cements; The well bucket install to adopt mechanicalness mounting shaft casing to go within the steel drum, squeezes in the soil along the pile tube machine with vibration then, holds together out steel drum then, with the draining of drawing water of sunk water pump, soil moisture in layer is reduced to below 20% behind the right bucket;
(3) solidating agent configuration:, carry out the configuration of weak soil solidating agent simultaneously carrying out deep-well when falling row; The weak soil solidating agent is made up of 30% cement, 40% sand, 10% lime, 10% flyash, 5% slag, 3% gypsum, 2% smalls silicon-base oxide, and various materials are stirred;
(4) implant solidating agent: adopt dried spray method to implant, promote the stirring of dusting, the demand height of rising to bores again, rises to the demand absolute altitude and shuts down, and carries out second group of implantation more in this order.Implantation depth is 50% of a depth of building, and diameter is 50cm; The implantation spacing is 1.8m;
(5) spray polyurethane foams: spray with spray infusion air gun, spraying the degree of depth is 50% of depth of building, and spraying spacing is 1.8m;
(6) accomplish expiration 25 days when above operation, detect, get into the construction-engineering project construction sequence then.
Particle diameter >=the 1mm of said alum.
Embodiment 2:
The weak soil solidating agent is made up of 40% cement, 50% sand, 5% lime, 2% flyash, 1% slag, 1% gypsum, 1% smalls silicon-base oxide.All the other are with embodiment 1.
Embodiment 3:
The weak soil solidating agent is made up of 35% cement, 55% sand, 0% lime, 0% flyash, 5% slag, 1% gypsum, 4% smalls silicon-base oxide.All the other are with embodiment 1.
Embodiment 4:
The weak soil solidating agent is made up of 30% cement, 30% sand, 20% lime, 20% flyash.All the other are with embodiment 1.
Claims (2)
1. a weak soil solidifies job practices, it is characterized in that: comprising:
(1) soil table is stopped and decided draining: according to test report, soil moisture content >=50 o'clock dispense alum at the soil property shallow-layer, per 100 ㎡ charity 1.2kg alum, and it is even to carry out mix with every 1.2kg alum and 100kg yellow ground during charity, adopts artificial charity then; Before charity, be one with 1000 ㎡ zones and get a little, the pool of drawing water is set, the hand excavation draws water after 48 hours when charity river sulfur acid aluminium potassium.Reduce the soil layer moisture content through drawing water;
(2) draining falls in open caisson: stop through soil table and decide behind the drainage procedure or confirm soil 35%≤moisture content≤50% o'clock through test, adopt the deep-well precipitation water discharge method to carry out that the well point is arranged, the well bucket is made, the well bucket is installed, the program of drawing water; The well point is arranged as a well point is set in per 50 ㎡, and the well bucket designs according to proposed building ground level planned well bucket height, and the well bucket highly is the half the of depth of building; The well bucket is a cylinder, and well internal diameter Ф>=1m, well bucket adopt common brick to make; Mortar-chalked joint is used in the slit; The jointing mortar is pressed sand and cement proportion 3:1 configuration, and sand is medium coarse sand, and cement is 325 ordinary Portland cements; The well bucket install to adopt mechanicalness mounting shaft casing to go within the steel drum, squeezes in the soil along the pile tube machine with vibration then, holds together out steel drum then, with the draining of drawing water of sunk water pump, soil moisture in layer is reduced to below 20% behind the right bucket;
(3) solidating agent configuration:, carry out the configuration of weak soil solidating agent simultaneously carrying out deep-well when falling row; The weak soil solidating agent is made up of cement, the sand of 30-60%, the lime of 0-40%, the flyash of 0-40%, the slag of 0-20%, the gypsum of 0-8%, the 0-5% smalls silicon-base oxide of 30-40%, and various materials are stirred;
(4) implant solidating agent: adopt dried spray method to implant, promote the stirring of dusting, the demand height of rising to bores again, rises to the demand absolute altitude and shuts down, and carries out second group of implantation more in this order.Implantation depth is 50% of a depth of building, and diameter is 50cm; The implantation spacing is 1.8m;
(5) spray polyurethane foams: spray with spray infusion air gun, spraying the degree of depth is 50% of depth of building, and spraying spacing is 1.8m;
(6) accomplish expiration 25 days when above operation, detect, get into the construction-engineering project construction sequence then.
2. weak soil according to claim 1 solidifies job practices, it is characterized in that: the particle diameter >=1mm of said alum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210234675.3A CN102733366B (en) | 2012-07-09 | 2012-07-09 | Soft soil curing construction method |
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| CN201210234675.3A CN102733366B (en) | 2012-07-09 | 2012-07-09 | Soft soil curing construction method |
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| CN102733366A true CN102733366A (en) | 2012-10-17 |
| CN102733366B CN102733366B (en) | 2014-06-04 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103992799A (en) * | 2013-09-06 | 2014-08-20 | 宁波万土环保科技有限公司 | Sea mud curing agent and production method thereof |
| CN105780764A (en) * | 2016-03-30 | 2016-07-20 | 东南大学 | Light cemented soil composite mixing pile |
| CN108221529A (en) * | 2018-01-15 | 2018-06-29 | 赤峰诚联市政工程有限责任公司 | Urban road mud base squeezes curing construction method |
| CN108330950A (en) * | 2018-02-08 | 2018-07-27 | 沙焕焕 | In-situ soil is modified the method for manufacturing artificial mud stone |
| CN108729436A (en) * | 2017-04-19 | 2018-11-02 | 连云港港口工程设计研究院有限公司 | A kind of quick consolidation method suitable for silt soft foundation |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004197307A (en) * | 2002-12-16 | 2004-07-15 | Kajima Corp | Soil improving method |
| CN101215141A (en) * | 2008-01-02 | 2008-07-09 | 邓亚光 | Soft soil curing agent |
| CN101949148A (en) * | 2010-09-25 | 2011-01-19 | 中国十九冶集团有限公司武汉分公司 | Method for constructing artificial dug pile at reduced well point ground water level |
| KR20120001856A (en) * | 2010-06-30 | 2012-01-05 | 어영자 | Method for reinforcing soft ground using geosynthetics and open channel |
-
2012
- 2012-07-09 CN CN201210234675.3A patent/CN102733366B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004197307A (en) * | 2002-12-16 | 2004-07-15 | Kajima Corp | Soil improving method |
| CN101215141A (en) * | 2008-01-02 | 2008-07-09 | 邓亚光 | Soft soil curing agent |
| KR20120001856A (en) * | 2010-06-30 | 2012-01-05 | 어영자 | Method for reinforcing soft ground using geosynthetics and open channel |
| CN101949148A (en) * | 2010-09-25 | 2011-01-19 | 中国十九冶集团有限公司武汉分公司 | Method for constructing artificial dug pile at reduced well point ground water level |
Non-Patent Citations (1)
| Title |
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| 张云，林彬，顶静: "岩土工程泥浆固化处理技术研究", 《山西建筑》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103992799A (en) * | 2013-09-06 | 2014-08-20 | 宁波万土环保科技有限公司 | Sea mud curing agent and production method thereof |
| CN103992799B (en) * | 2013-09-06 | 2017-10-10 | 宁波万土环保科技有限公司 | Ooze curing agent and its production method |
| CN105780764A (en) * | 2016-03-30 | 2016-07-20 | 东南大学 | Light cemented soil composite mixing pile |
| CN108729436A (en) * | 2017-04-19 | 2018-11-02 | 连云港港口工程设计研究院有限公司 | A kind of quick consolidation method suitable for silt soft foundation |
| CN108221529A (en) * | 2018-01-15 | 2018-06-29 | 赤峰诚联市政工程有限责任公司 | Urban road mud base squeezes curing construction method |
| CN108330950A (en) * | 2018-02-08 | 2018-07-27 | 沙焕焕 | In-situ soil is modified the method for manufacturing artificial mud stone |
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| CN102733366B (en) | 2014-06-04 |
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Denomination of invention: Soft soil solidification construction method Effective date of registration: 20220427 Granted publication date: 20140604 Pledgee: China Construction Bank Corporation Rudong sub branch Pledgor: JIANGSU SHUNTONG CONSTRUCTION GROUP Co.,Ltd. Registration number: Y2022980004919 |