CN203625882U - Environment-friendly vertical drain member suitable for foundation of fresh hydraulic filled silt with high clay content - Google Patents
Environment-friendly vertical drain member suitable for foundation of fresh hydraulic filled silt with high clay content Download PDFInfo
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- CN203625882U CN203625882U CN201320705311.9U CN201320705311U CN203625882U CN 203625882 U CN203625882 U CN 203625882U CN 201320705311 U CN201320705311 U CN 201320705311U CN 203625882 U CN203625882 U CN 203625882U
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- vertical drainage
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- drainage body
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model discloses an environment-friendly vertical drain member suitable for the foundation of fresh hydraulic filled silt with high clay content. The environment-friendly vertical drain is characterized by comprising a core body and an inverted filter coating the outside of the core body, wherein the inverted filter is formed by processing an environment-friendly material; the material of the main core body can select 1) an environment-friendly material, 2) a mixture of the environment-friendly material and a natural granular material with good water permeability or industrial waste with good water permeability or 3) a mixture of the environment-friendly material and a plurality of plastic pipes, the ring stiffness of each pipe is larger than 15kN/m<2>, the aperture ratio of each pipe wall is higher than 50%, and each plastic pipe is as long as the core body; and the environment-friendly material can adopt a crude plant fiber material which can be degraded automatically, is colloidal and multi-pore and has good water permeability.
Description
Technical field
The utility model relates to vertical drainage body technical field.
Background technology
New hydraulically filled sludge; mainly refer to that original position sea is long-pending, river is long-pending or the long-pending mud in lake; or basin waterway dredging mud through waterpower reinvent with particle again sorting after, soil particle not yet completes deadweight deposition process, grain structure is extremely loose, moisture content is high, in flowing or suspended state, mud that just hydraulic reclamation forms, there is the bad engineering propertiess such as high glutinous grain content, high strong hydrophilicity mineral content, high-moisture percentage, high void ratio, high liquid limit index.
New hydraulically filled sludge ground is almost without bearing capacity, and intractability is very large, and at present normal employing carried out consolidation process without sand cushion technique of soft soil foundation treatment, and when vacuum preloading Water drainage system design, still adopts common plastics band drain as vertical drainage body.But many engineering practices all show: in vacuum pre-press reinforcing process, common plastics band drain is easy to occur serious silting phenomenon, and this causes the drainage performance of vacuum preloading drainage system to reduce rapidly, has finally seriously undermined ground stabilization effect.
In recent years, a lot of people in the industry have carried out improving or innovation to vertical drainage body from many aspects.For example, 1. appoint forever (CN1624252) to invent a kind of vacuum net water suction method and special band drain, principal character is at least one vertical drainage pipe of vertical drainage body embedded set again, and its upper end is directly connected with the vacuum official website of level; 2. golden second place waits (CN101614006) to invent a kind of silt consolidation band drain and filter cloth and band drain core, principal character is that fiber hot pressing micropore filter cloth is the plane filter cloth of flat-rolled roller hot rolling, and filter cloth melts by heat or chemical adhesion in band drain convex tendon surface, filter cloth adopts throwing and hot-forming separate process, and band drain core adopts co-polypropylene to make; 3. beautiful wait (CN102409661A) of Geng Xue invented a kind of Effective Anti bending novel plastic band drain, and principal character is made up of cross central layer plate face and filter membrane, and wherein central layer is made up of degradation plastic; 4. Zou Li etc. (CN202227331U) has invented a kind of degredation plastic band drain, and principal character is that degredation plastic central layer tow sides are evenly equipped with parallel baffle, is rhone between parallel baffle; 5. Yang Bin peak etc. (CN102561305A) invented a kind of melamine foam draining boards, and principal character is to adopt non-closed pore melamine foams as plate core; 6. Ma Jianbao (CN202543888U) has invented a kind of environmental protection band drain, and principal character is that in the middle of band drain main body be central layer, and its section is the cross harmonica that is in parallel, and central layer two sides is enclosed with geotextile filter.But above-mentioned patent fails to obtain extensive use so far in engineering reality, mainly contains several respects reason: the first, site operation difficulty is large, as 1., 3., 4., 5.; The second, processing and manufacturing difficulty is large, as 1., 4., 6.; The 3rd, bending resistance folding endurance is not good, as 2., 6.; The 4th, for blowing-filling sludge ground recently, cannot effectively solve silting problem, as 1., 3., 4., 5., 6.; The 5th, can not solve environmental issue, 1., 2., 5..
Utility model content
The purpose of this utility model is the deficiency that overcomes above-mentioned existing utility model, provides a kind of and can effectively solve silting problem, bend resistance performance is good, processing and fabricating feasibility is strong, cost of production is low, site operation is simple, drainage efficiency is high, be applicable to the environment-friendly type vertical drainage body of high glutinous grain content new hydraulically filled sludge ground vacuum pre-press reinforcing.
For achieving the above object, the utility model adopts following technical proposals: a kind of vertical drainage body that is applicable to high glutinous grain content new hydraulically filled sludge ground, it is characterized in that: described environment-friendly type vertical drainage body is made up of core body and the loaded filter that is wrapped in core body outside, the main body of core body forms with many ribs parallel with vertical drainage body axis that protrude from cylinder external surface by being positioned at central cylinder, between adjacent rib, form the longitudinal fluting that is parallel to vertical drainage body axis, described loaded filter is wrapped in the external surface of rib.
Specifically, between core body and loaded filter by coated or bonding or make or heat is melted or the mode of stitching combines.
The effective aperture of loaded filter is 0.1mm～0.3mm.
Some longitudinal cylindricality drainage channels that are parallel to vertical drainage body axis that described cylinder wraps up by entity part and by entity part.
Vertical drainage body of the present utility model is good in working life internal drainage performance and mechanical property, and the water being reinforced in the soil body can enter core body by loaded filter smoothly, and the passage in core body is discharged.And these green materials all can obtain degradable under the impact of the factor such as acid-base value, biology of inside soil body.
Accompanying drawing explanation
Fig. 1 is the schematic cross-section of vertical water discharging body described in the utility model.
The specific embodiment
A kind of vertical drainage body, is made up of loaded filter 1 and core body 2, combines between the two by bonding or the heat mode such as melt.
Loaded filter 1 selects environmental type materials processing to form, described environmental protection shaped material be can degrade voluntarily, glue, concrete dynamic modulus, the good plant crude fiber material of water permeability; Described plant crude fiber material is selected from one or more in bark, Wheat Straw, bamboo fibre, lumber fibre, rice straw, reed rod to be mixed at random with colloidal form.
The structure of loaded filter adopts the structure of common plastics band drain filter membrane or industrial screen all can.
The effective aperture of loaded filter is 0.1mm～0.3mm, and transmission coefficient is required to be and is greater than 5 × 10
-4cm/s, and be the more than 10 times of surrounding soil transmission coefficient.The gradient ratio of loaded filter carries out indoor clogging test and specifically determines in conjunction with being reinforced the soil body.
The main body of core body forms with many ribs 22 parallel with vertical drainage body axis that protrude from cylinder external surface by being positioned at central cylinder 21, between adjacent rib, form the longitudinal fluting 23 that is parallel to vertical drainage body axis, loaded filter 1 is wrapped in the external surface of rib 22.Cylinder 21 inside have the longitudinal cylindricality drainage channel 24 that is parallel to vertical drainage body axis.Be wrapped in the entity part 25 of longitudinal drainage passage 24 and rib 22 and adopt the extruding of environmental protection shaped material to form, and entity part after extruding leaves some the longitudinal cylindricality drainage channels that parallel to the axis.Described environmental protection shaped material be can degrade voluntarily, glue, concrete dynamic modulus, the good plant crude fiber material of water permeability; Described plant crude fiber material is selected from one or more in bark, Wheat Straw, bamboo fibre, lumber fibre, rice straw, reed rod to be mixed at random.
The bending tensile strength of core body meets related specifications requirement, longitudinal flowing water measuring>=15～55cm
3/ s.
Core body can pass through special equipment extruding-out process, and it has the advantages such as continuously shaped, easy batch production.
Claims (4)
1. be applicable to the environment-friendly type vertical drainage body of high glutinous grain content new hydraulically filled sludge ground, it is characterized in that: described environment-friendly type vertical drainage body is made up of core body and the loaded filter that is wrapped in core body outside, the main body of core body forms with many ribs parallel with vertical drainage body axis that protrude from cylinder external surface by being positioned at central cylinder, between adjacent rib, form the longitudinal fluting that is parallel to vertical drainage body axis, described loaded filter is wrapped in the external surface of rib.
2. an environment-friendly type vertical drainage body that is applicable to high glutinous grain content new hydraulically filled sludge ground according to claim 1, is characterized in that: between core body and loaded filter by coated or bonding or make or hot melt or the mode of stitching combines.
3. the environment-friendly type vertical drainage body that is applicable to high glutinous grain content new hydraulically filled sludge ground according to claim 1, is characterized in that: the effective aperture of loaded filter is 0.1mm～0.3mm.
4. the environment-friendly type vertical drainage body that is applicable to high glutinous grain content new hydraulically filled sludge ground according to claim 1, is characterized in that: some longitudinal cylindricality drainage channels that are parallel to vertical drainage body axis that described cylinder wraps up by entity part and by entity part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320705311.9U CN203625882U (en) | 2013-11-08 | 2013-11-08 | Environment-friendly vertical drain member suitable for foundation of fresh hydraulic filled silt with high clay content |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320705311.9U CN203625882U (en) | 2013-11-08 | 2013-11-08 | Environment-friendly vertical drain member suitable for foundation of fresh hydraulic filled silt with high clay content |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203625882U true CN203625882U (en) | 2014-06-04 |
Family
ID=50812374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320705311.9U Expired - Fee Related CN203625882U (en) | 2013-11-08 | 2013-11-08 | Environment-friendly vertical drain member suitable for foundation of fresh hydraulic filled silt with high clay content |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203625882U (en) |
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2013
- 2013-11-08 CN CN201320705311.9U patent/CN203625882U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140604 Termination date: 20211108 |