CN105672245B - Flow the method that the high strength cement soil body is formed in plasticity weak soil - Google Patents
Flow the method that the high strength cement soil body is formed in plasticity weak soil Download PDFInfo
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- CN105672245B CN105672245B CN201610038765.3A CN201610038765A CN105672245B CN 105672245 B CN105672245 B CN 105672245B CN 201610038765 A CN201610038765 A CN 201610038765A CN 105672245 B CN105672245 B CN 105672245B
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- soil body
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
- E02D3/123—Consolidating by placing solidifying or pore-filling substances in the soil and compacting the soil
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The present invention provides a kind of method for flowing and the high strength cement soil body being formed in plasticity weak soil, mainly includes the following steps that sand, stone aggregate are added in muck soil by (1) using gunite or vibratory drilling method, forms drainage channel；(2) in soil body deadweight with geostatic pressure effect, making the mud discharging consolidation near drainage channel, reducing its water content；(3) concrete grey is added using dry method churning technique and mixes special early strong water reducing ability additive；(4) concrete grey is sufficiently stirred with sand, stone aggregate and the muck soil added；(5) soil cement, the water content of sand compound are detected, quantifies plus water makes the abundant aquation of cement, and compound is reached optimum moisture content requirement；Form the high strength cement soil body.(6) in above-mentioned steps, the objects such as the dust for discharge of constructing is absorbed using dust exhaust apparatus, do not allow it to be discharged into air.It is small using the construction foundation bearing capacity height of the inventive method processing, deformation, handle low cost.
Description
Technical field
The present invention relates to foundation engineering technical field, is specifically related to the technical field that the stream plasticity soil body is handled.
Background technology
The water content of stream plasticity Soft Soil Layer is generally 35%~90%, in flow regime.
Need reinforcement processing when flowing plasticity Soft Soil Layer as ground, and conventional method is：Insert rigid pile, injection cement
The methods of slurry, cement-soil mixing pile, high-pressure rotary-spray cement earth pile, put because the construction costs of insertion rigid pile is higher
Abandon.It is a kind of most effective and cheap reinforcing and processing method using cement-based solidified dose of method of addition.But grouting and reinforcing, reinforce
Effect is difficult to control, cement-soil mixing pile and high-pressure rotary-spray concrete stake, due to the cement grout water content of penetrating it is higher with
Silt soil is mixed to form soil cement, and its intensity is influenceed very greatly, typically to can only achieve 0.2~0.5mpa, work as soil by the water content of soil
Water content up to more than 45% when, soil cement coring is shapeless, and its intensity is in below 0.1Mpa.It is it can be said that conventional with water
The ground that mud base solidification agent method is reinforced is difficult to the requirement for reaching reinforcing.
The content of the invention
The technical problems to be solved by the invention are, overcome problems of the prior art, there is provided one kind stream plasticity
The method that the high strength cement soil body is formed in weak soil.
In order to solve the above problems the technical scheme is that such：
Flow the method that the high strength cement soil body is formed in plasticity weak soil：
(1) sand, stone aggregate are added in muck soil using gunite or vibratory drilling method, form drainage channel；
(2) in soil body deadweight with geostatic pressure effect, making the mud discharging consolidation near drainage channel, it is aqueous reducing its
Amount；
(3) concrete grey is added using dry method churning technique and mixes special early strong water reducing ability additive；
(4) concrete grey is sufficiently stirred with sand, stone aggregate and the muck soil added；
(5) soil cement, the water content of sand compound are detected, quantifies plus water makes the abundant aquation of cement, and reach compound
Optimum moisture content requirement；Form the high strength cement soil body.
(6) in above-mentioned steps, the objects such as the dust for discharge of constructing is absorbed using dust exhaust apparatus, do not allow it to discharge
Into air.
0.5~40 millimeter of the particle diameter of sand, stone aggregate.
Sand, the content of stone aggregate are more than 20% in the high strength cement soil body.
Its uniaxial compressive strength of the high strength cement soil body is more than 1.0MPA.
Its water content≤30% of the high strength cement soil body.
Beneficial effect, the construction foundation bearing capacity height handled using the inventive method, deformation are small, handle low cost, construction
During dust pollution controlled, non-environmental-pollution is green.
Brief description of the drawings
Describe the present invention in detail with reference to the accompanying drawings and detailed description；
Fig. 1 is that aggregate schematic diagram is put into muck soil of the present invention.
Fig. 2 is the high strength cement soil structures schematic diagram formed in muck soil of the present invention.
Embodiment
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, tie below
Conjunction is specifically illustrating, and the present invention is expanded on further.
Flow the method that the high strength cement soil body is formed in plasticity weak soil：
First prepare sand, stone aggregate, sand, 0.5~40 millimeter of the particle diameter of stone aggregate before construction.From the bone of this size
Material, can conveniently form drainage channel.
(1) sand, stone aggregate are added in muck soil using gunite or vibratory drilling method, form drainage channel；
(2) in soil body deadweight with geostatic pressure effect, making the mud discharging consolidation near drainage channel, it is aqueous reducing its
Amount；
Referring now to Fig. 1, sand, stone aggregate need uniform be added in muck soil 2 to form sandstone body 1, sand, stone aggregate
Gap moisture in surrounding soil is concentrated to centre, form unimpeded drainage channel (arrow show drainage channel).
(3) concrete grey is added using dry method churning technique and mixes special early strong water reducing ability additive；
(4) concrete grey is sufficiently stirred with sand, stone aggregate and the muck soil added；
(5) soil cement, the water content of sand compound are detected, quantifies plus water makes the abundant aquation of cement, and reach compound
Optimum moisture content requirement；Form the high strength cement soil body.
Referring to Fig. 2, the concrete grey of early strong water reducing ability additive is carried due to adding, the soil body is hardened, is formed high-strength
Spend soil-cement body 3.Sand, the content of stone aggregate are more than 20% in the high strength cement soil body.Its single shaft of the high strength cement soil body
Compression strength is more than 1.0MPA.Its water content≤35% of the high strength cement soil body.
(6) in above-mentioned steps, the objects such as the dust for discharge of constructing is absorbed using dust exhaust apparatus, do not allow it to discharge
Into air.This step can avoid dust pollution, the environmental protection of work progress Green.
The construction foundation bearing capacity that is handled using the inventive method is high, deformation is small, handles low cost, dust in work progress
Pollution is controlled, and non-environmental-pollution is green.
General principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, various changes and modifications of the present invention are possible without departing from the spirit and scope of the present invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The scope of patent requirements protection of the present invention is by appended claim
Book and its equivalent define.
Claims (3)
1. the method that the high strength cement soil body is formed in plasticity weak soil is flowed, it is characterized in that：
(1) sand, stone aggregate are added in muck soil using gunite or vibratory drilling method, form drainage channel；Wherein sand, stone bone
0.5~40 millimeter of the particle diameter of material；
(2) in soil body deadweight with ground pressure effect, making the mud discharging consolidation near drainage channel, reducing its water content；
(3) concrete grey is added using dry method churning technique and mixes special early strong water reducing ability additive；
(4) concrete grey is sufficiently stirred with sand, stone aggregate and the muck soil added；
(5) soil cement, the water content of sand compound are detected, quantifies plus water makes the abundant aquation of cement, and compound is reached optimal
Water content requirement；Form the high strength cement soil body；Sand, the content of stone aggregate are more than 20% in the high strength cement soil body；
(6) in above-mentioned steps, the dust thing for discharge of constructing is absorbed using dust exhaust apparatus, does not allow it to be discharged into air
In.
2. the method for the high strength cement soil body is formed in stream plasticity weak soil according to claim 1, it is characterized in that, high intensity
Its uniaxial compressive strength of soil-cement body is more than 1.0MPA.
3. the method for the high strength cement soil body is formed in stream plasticity weak soil according to claim 1, it is characterized in that, high intensity
Its water content≤30% of soil-cement body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610038765.3A CN105672245B (en) | 2016-01-21 | 2016-01-21 | Flow the method that the high strength cement soil body is formed in plasticity weak soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610038765.3A CN105672245B (en) | 2016-01-21 | 2016-01-21 | Flow the method that the high strength cement soil body is formed in plasticity weak soil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105672245A CN105672245A (en) | 2016-06-15 |
| CN105672245B true CN105672245B (en) | 2018-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610038765.3A Active CN105672245B (en) | 2016-01-21 | 2016-01-21 | Flow the method that the high strength cement soil body is formed in plasticity weak soil |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113860809A (en) * | 2018-02-08 | 2021-12-31 | 沙焕焕 | Cement-setting material, artificial mudstone and method for producing the same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1957143A (en) * | 2004-05-20 | 2007-05-02 | 丸山工业株式会社 | Method for reinforcing soft ground |
| JP2013104215A (en) * | 2011-11-14 | 2013-05-30 | Fujitec Co Ltd | Liquefaction prevention method |
| CN204059124U (en) * | 2014-08-06 | 2014-12-31 | 冠鲁建设股份有限公司 | A kind of sand drain strong rammer grouting behind shaft or drift lining foundation reinforcing structure |
| CN204875755U (en) * | 2015-06-04 | 2015-12-16 | 杭州特诚地基工程有限公司 | Drainage body and solidification stratum society foundation structure |
| CN204898645U (en) * | 2015-04-01 | 2015-12-23 | 江苏建院营造有限公司 | Construction waste regeneration drainage CFG pile foundation |
-
2016
- 2016-01-21 CN CN201610038765.3A patent/CN105672245B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1957143A (en) * | 2004-05-20 | 2007-05-02 | 丸山工业株式会社 | Method for reinforcing soft ground |
| JP2013104215A (en) * | 2011-11-14 | 2013-05-30 | Fujitec Co Ltd | Liquefaction prevention method |
| CN204059124U (en) * | 2014-08-06 | 2014-12-31 | 冠鲁建设股份有限公司 | A kind of sand drain strong rammer grouting behind shaft or drift lining foundation reinforcing structure |
| CN204898645U (en) * | 2015-04-01 | 2015-12-23 | 江苏建院营造有限公司 | Construction waste regeneration drainage CFG pile foundation |
| CN204875755U (en) * | 2015-06-04 | 2015-12-16 | 杭州特诚地基工程有限公司 | Drainage body and solidification stratum society foundation structure |
Non-Patent Citations (1)
| Title |
|---|
| 干拌水泥碎石桩加固机理研究及工程实例分析;韩冬红;《中国勘察设计》;20091231(第4期);第51页左栏第1-2段，第52页左栏第4段，右栏倒数第1-3段 * |
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| CN105672245A (en) | 2016-06-15 |
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