CN108330917A - The processing method of aqueous ground - Google Patents
The processing method of aqueous ground Download PDFInfo
- Publication number
- CN108330917A CN108330917A CN201810157731.5A CN201810157731A CN108330917A CN 108330917 A CN108330917 A CN 108330917A CN 201810157731 A CN201810157731 A CN 201810157731A CN 108330917 A CN108330917 A CN 108330917A
- Authority
- CN
- China
- Prior art keywords
- sand
- hydraulic
- cofferdam
- soil
- hydraulic fill
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/18—Reclamation of land from water or marshes
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
- E02D19/18—Restraining of underground water by damming or interrupting the passage of underground water by making use of sealing aprons, e.g. diaphragms made from bituminous or clay material
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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
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
- E02D3/106—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains by forming sand drains containing only loose aggregates
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Paleontology (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Agronomy & Crop Science (AREA)
- Soil Sciences (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The processing method of aqueous ground, the projected depth that vertical drainage body reaches the weak soil that underlies is inserted first, simultaneously wall is stirred in the mud of hydraulic fill sand area boundary construction depth up to 0.5m ~ 1.0m below hydraulic fill sand bottom plate, then underground water is reduced using the dewatering measure strength for being suitable for hydraulic fill sand permeance property and makes up to hydraulic reclamation layer of sand bottom plate or less 0.5m ~ 1.0m, invention can carry out hydraulic fill sand to ram the closely knit high-strength rigid shell for forming big thickness overconsolidation, there is good stress spread effect to following working load, and settlement after construction is made to be difficult to generate；Also there is higher bearing capacity because back-up sand soil compactness is high simultaneously, make good artificial foundation's soil.
Description
Technical field
The present invention relates to civil construction technical field more particularly to the processing methods of aqueous ground.
Background technology
In the engineering construction of reclaiming land around sea, the relatively other kinds of geological conditions of moisture that pending ground contains is more
It is more.It is the mud rich in moisture that the geologic structure of such situation, which is generally lower layer, and upper layer is thicker soil sand, because being settled in construction
It is obvious, it needs to pay more quantities than conventional basement process.The processing method etc. of currently used aqueous ground is deposited
It is high in project cost, the problems such as complex treatment process, constructional difficulties.
Invention content
It is an object of the invention to propose that a kind of processing method of aqueous ground, construction cost are relatively low.
For this purpose, the present invention uses following technical scheme：
The processing method of aqueous ground inserts the projected depth that vertical drainage body reaches the weak soil that underlies first, while in hydraulic fill sand area
The mud of boundary construction depth up to 0.5m ~ 1.0m below hydraulic fill sand bottom plate stir wall, then use and are suitable for hydraulic fill sand permeability
The dewatering measure strength of energy reduces underground water and makes up to hydraulic reclamation layer of sand bottom plate or less 0.5m ~ 1.0m, while on hydraulic reclamation layer of sand
The work that spreads a layer of clay cloth and one layer of water-separating film, treatment region boundary be packed in bag sticky mound build height be not less than 2m cofferdam, cofferdam
Several water outlet sand furrows, each side top in cofferdam are stayed to reserve the mouth of a river in bottom；Into cofferdam, hydraulic fill sand or sandy soil reach cofferdam height simultaneously
Degree carries out blowing, filling, stacking, loading, precipitating, pre-pressing, makes what the mud class weak soil to underlie was in the hydraulic fill sand of drainage and new hydraulic reclamation to contain water sand
Under dual load action, implement discharging consolidation using the vertical drainage body being inserted into weak soil；Work as sedimentation --- time graph is stablized,
Soft soil consolidation degree is more than 80%, and strong rammer is carried out to barged-in fill, so that the soil layer of priority hydraulic reclamation is become compactness and is more than 85% hard formation；Draining
Facility retains a part, continues to extract the later stage consolidation draining because of vertical drainage body.
The depth of the water outlet sand furrow is 30cm, and width 40cm, length is 1.5 times of the bottom width in the cofferdam.
The material of the water outlet sand furrow is xalsonte, exposes and is covered with permeable geotextiles above the inside sand furrow at cofferdam bottom.
The dewatering measure is to use pipe well or big well to lower layer's hydraulic fill sand.
Treatment region lower layer hydraulic fill sand periphery is using mud stirring wall packing.
The present invention can carry out hydraulic fill sand to ram the closely knit high-strength rigid shell for forming big thickness overconsolidation, make to future
There is good stress spread effect with load, and settlement after construction is made to be difficult to generate；Also have simultaneously because back-up sand soil compactness is high
There is higher bearing capacity, makes good artificial foundation's soil.
Specific implementation mode
The processing method of aqueous ground inserts the projected depth that vertical drainage body reaches the weak soil that underlies first, while in hydraulic reclamation
The mud of the boundaries Sha Qu construction depth up to 0.5m ~ 1.0m below hydraulic fill sand bottom plate stir wall, are then oozed using being suitable for hydraulic fill sand
The dewatering measure strength of permeability energy reduces underground water and makes up to hydraulic reclamation layer of sand bottom plate or less 0.5m ~ 1.0m, while in hydraulic fill sand
Layer one layer of upper berth geotextiles and one layer of water-separating film, on treatment region boundary, the sticky mound that is packed in bag builds the cofferdam that height is not less than 2m,
Several water outlet sand furrows, each side top in cofferdam are stayed to reserve the mouth of a river in cofferdam bottom；Into cofferdam, hydraulic fill sand or sandy soil reach and enclose simultaneously
Weir height carries out blowing, filling, stacking, loading, precipitating, pre-pressing, and the mud class weak soil to underlie is made to be in containing for the hydraulic fill sand of drainage and new hydraulic reclamation
Under the dual load action of water sand, implement discharging consolidation using the vertical drainage body being inserted into weak soil；Work as sedimentation --- time graph
Stablize, soft soil consolidation degree is more than 80%, and strong rammer is carried out to barged-in fill, so that the soil layer of priority hydraulic reclamation is become compactness hard more than 85%
Layer；Pumping equipment retains a part, continues to extract the later stage consolidation draining because of vertical drainage body.
The depth of the water outlet sand furrow is 30cm, and width 40cm, length is 1.5 times of the bottom width in the cofferdam.
The material of the water outlet sand furrow is xalsonte, exposes and is covered with permeable geotextiles above the inside sand furrow at cofferdam bottom.
The dewatering measure is to use pipe well or big well to lower layer's hydraulic fill sand.
Treatment region lower layer hydraulic fill sand periphery is using mud stirring wall packing.
The present invention is especially suitable for riverine, the coastwise beach domains of blast epeirogenetic, and engineering method construction through the invention can be simultaneously
In a short time, meet requirement of the engineering to sedimentation and bearing capacity, to have apparent Social benefit and economic benefit, to me
Riverine, the coastal land development of state has good application prospect.
The technical principle of the present invention is described above in association with specific embodiment.These descriptions are intended merely to explain the present invention's
Principle, and it cannot be construed to limiting the scope of the invention in any way.Based on the explanation herein, the technology of this field
Personnel would not require any inventive effort the other specific implementation modes that can associate the present invention, these modes are fallen within
Within protection scope of the present invention.
Claims (5)
1. the processing method of aqueous ground, it is characterised in that：The projected depth that vertical drainage body reaches the weak soil that underlies is inserted first, together
When in the mud of hydraulic fill sand area boundary construction depth up to 0.5m ~ 1.0m below hydraulic fill sand bottom plate stir wall, then using being suitable for
The dewatering measure strength of hydraulic fill sand permeance property reduces underground water and makes up to hydraulic reclamation layer of sand bottom plate or less 0.5m ~ 1.0m, simultaneously
In one layer of hydraulic reclamation layer of sand upper berth geotextiles and one layer of water-separating film, on treatment region boundary, the sticky mound that is packed in bag builds height and is not less than 2m
Cofferdam, cofferdam bottom stays several water outlet sand furrows, each side top in cofferdam to reserve the mouth of a river；Hydraulic fill sand or sandy soil into cofferdam simultaneously
Reach cofferdam height, carry out blowing, filling, stacking, loading, precipitating, pre-pressing, the mud class weak soil to underlie is made to be in the hydraulic fill sand of drainage and newly blow
That fills out contains under the dual load action of water sand, and the vertical drainage body being inserted into weak soil is utilized to implement discharging consolidation；When sedimentation --- when
Half interval contour is stablized, and soft soil consolidation degree is more than 80%, carries out strong rammer to barged-in fill, the soil layer of priority hydraulic reclamation is made to be more than as compactness
85% hard formation；Pumping equipment retains a part, continues to extract the later stage consolidation draining because of vertical drainage body.
2. aqueous method for processing foundation according to claim 1, it is characterised in that：It is described water outlet sand furrow depth be
30cm, width 40cm, length are 1.5 times of the bottom width in the cofferdam.
3. aqueous method for processing foundation according to claim 2, it is characterised in that：The material of the water outlet sand furrow is coarse grain
Sand exposes and is covered with permeable geotextiles above the inside sand furrow at cofferdam bottom.
4. aqueous method for processing foundation according to claim 1, it is characterised in that：The dewatering measure is to lower layer's hydraulic reclamation
Sand uses pipe well or big well.
5. aqueous method for processing foundation according to claim 1, it is characterised in that：Treatment region lower layer hydraulic fill sand periphery uses
Mud stirs wall packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810157731.5A CN108330917A (en) | 2018-02-24 | 2018-02-24 | The processing method of aqueous ground |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810157731.5A CN108330917A (en) | 2018-02-24 | 2018-02-24 | The processing method of aqueous ground |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108330917A true CN108330917A (en) | 2018-07-27 |
Family
ID=62929713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810157731.5A Pending CN108330917A (en) | 2018-02-24 | 2018-02-24 | The processing method of aqueous ground |
Country Status (1)
| Country | Link |
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| CN (1) | CN108330917A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111236206A (en) * | 2020-01-15 | 2020-06-05 | 田强 | Double-layer low-level vacuum preloading reinforcing device and soft soil foundation reinforcing method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101270571A (en) * | 2007-03-20 | 2008-09-24 | 张伯谦 | Reinforcing method for demixing sole weight, prepressing water discharge concretion combination dynamic consolidation soft ground base |
| CN101377077A (en) * | 2007-08-29 | 2009-03-04 | 林佳栋 | Blowing, filling, stacking , loading, precipitating, pre-pressing and strong tamping combined soft soil foundation treating method |
| CN103031837A (en) * | 2013-01-10 | 2013-04-10 | 中交四航工程研究院有限公司 | Method for reinforcing deep and soft soil foundation by combining well-points dewatering with preloading |
| CN107386264A (en) * | 2017-09-19 | 2017-11-24 | 河海大学 | A kind of vacuum backwashes Polluted Soil in-situ remediation method from migrating |
-
2018
- 2018-02-24 CN CN201810157731.5A patent/CN108330917A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101270571A (en) * | 2007-03-20 | 2008-09-24 | 张伯谦 | Reinforcing method for demixing sole weight, prepressing water discharge concretion combination dynamic consolidation soft ground base |
| CN101377077A (en) * | 2007-08-29 | 2009-03-04 | 林佳栋 | Blowing, filling, stacking , loading, precipitating, pre-pressing and strong tamping combined soft soil foundation treating method |
| CN103031837A (en) * | 2013-01-10 | 2013-04-10 | 中交四航工程研究院有限公司 | Method for reinforcing deep and soft soil foundation by combining well-points dewatering with preloading |
| CN107386264A (en) * | 2017-09-19 | 2017-11-24 | 河海大学 | A kind of vacuum backwashes Polluted Soil in-situ remediation method from migrating |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111236206A (en) * | 2020-01-15 | 2020-06-05 | 田强 | Double-layer low-level vacuum preloading reinforcing device and soft soil foundation reinforcing method |
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Application publication date: 20180727 |
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