CN105386434B - Umbrella type drainage device and drainage method thereof - Google Patents
Umbrella type drainage device and drainage method thereof Download PDFInfo
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- CN105386434B CN105386434B CN201510676790.XA CN201510676790A CN105386434B CN 105386434 B CN105386434 B CN 105386434B CN 201510676790 A CN201510676790 A CN 201510676790A CN 105386434 B CN105386434 B CN 105386434B
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- drainage
- umbrella cloth
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- cloth
- drainage pipe
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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
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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)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention provides an umbrella type drainage device and a drainage method thereof. The umbrella type drainage device comprises a framework and umbrella cloth. The framework is composed of a longitudinal drainage pipe and transverse drainage pipes. The transverse drainage pipes are hinged to the longitudinal drainage pipe and communicated with the longitudinal drainage pipe. The outer surface of the framework is coated with a layer of filter cloth, and a plurality of filter holes are formed in the framework. The umbrella cloth penetrates the longitudinal drainage pipe to be fixed to the transverse drainage pipes, and the centers of the umbrella cloth and the longitudinal drainage pipe are fixed together through tying ropes. A connector communicated with a drainage pipeline is arranged on the upper portion of the longitudinal drainage pipe. The device is high in adaptability and good in sludge plugging prevention effect.
Description
Technical field
The present invention relates to a kind of drainage arrangement and its water discharge method, and in particular to a kind of umbrella-type drainage arrangement and its draining side
Method.
Background technology
With the development of China's Tidal Flat Reclamation building cause, especially propulsion sea is proposed in China " 12 " planning outline
After foreign economic development, for the requirement of border on the sea land-based area area and development rate is necessarily lifted, it is major measure with making wherein to enclose and cultivate
One of.But Marine shoal is enclosed and cultivated
Based on permeability, high saturability, low-intensity, high rheological variation soft soil, stiffening basic ground need to be carried out to which.Currently for hydraulic reclamation
Soft Ground measure mainly has two big class, and a class is draining concretion method, another kind of for compound foundation method.Wherein, locate at present
The conventional method of reason reclaimed ground mainly has：Draining concretion method (can be divided into vacuum method, heap according to the difference of loading system
Carry preloading method, overload pre-compaction method, Vacuum-loading Pre-pressing Method, drainage by electroosmosis method and lowering of watertable method), dynamic drainage it is solid
Connection (High vacuum compacting method) etc.；Pile foundation process need to typically be carried out for top is had at the ground of structure, to reduce ground
Sedimentation.
Each method is both needed to carry out field operation using medium-sized or heavy-duty machinery above, but encloses and cultivates recently barged-in fill top layer bearing capacity
It is difficult to meet the personnel needed for capital construction basement process, mechanical requirement, considerable influence is produced to personal security, mechanical execution.If
Treat that the dry in the sun of barged-in fill superficial natural forms the top layer crust layer of some strength, take long enough, and easily by factor shadows such as weather
Ring.So need to carry out pretreatment to barged-in fill, to forming the crust layer that can facilitate site operation in barged-in fill shallow-layer.At present
Traditional vacuum pre-pressed joint plastic draining board and low position vacuum preloading method are mainly to the preprocess method of barged-in fill.
For the traditional vacuum pre-pressed joint Plastic drain board method of barged-in fill pretreatment, because barged-in fill is mostly with Muddy Bottoms
Based on the weak permeabilitys such as soil, powder fine sand soil, organic matter clay, high saturability, low-intensity, high rheological variation soft soil, therefore adopt
Floating sets platform and is manually plugged plastic draining board, and adopts top sand bedding course or vacuum transmission pipe laterally to arrange as top layer
Water system, lays filter membrane afterwards, forms the vacuum preloading draining decorum；Low position vacuum preloading is preset in blast-filled ground bottom
One layer of permeable sand bedding course, carries out plate afterwards, arranges transverse drainage system.Vacuum pre-pressed joint vertical drainage body method, because of hydraulic reclamation
The hypotonicity and high-moisture percentage of soil so as to which the duration of a project is longer, while which mainly carries out draining by vertical drainage passage, side
To single, and " uniting " soil body is easily formed around vertical drainage body, hinder the draining of barged-in fill away from vertical drainage body solid
Knot, causes the inhomogeneities of barged-in fill intensity to strengthen,；Low position vacuum preloading method adds bottom radial drainage layer, reduces barged-in fill
Vertical drainage path, shorten the duration of a project, but which fail to change the enhanced inhomogeneities of soil strength.
In this regard, for overcoming vacuum pre-pressed joint conventional plastic draining board (PVD) used in barged-in fill pretreatment engineering to exist
Drainage direction it is single, drainage path is relatively long, not reusable edible, process after the defect such as soil strength is uneven,
Appearance can be used for " three-dimensional drain " of barged-in fill shallow-layer pretreatment, and which includes vertical drainage pipeline and lateral drainage pipeline,
The characteristics of making it have three-dimensional, multidirectional, repeatable utilization in vacuum preloading.With vacuum pre-pressed joint conventional plastic sheet drainage phase
Than, which can greatly reduce the discharging consolidation path of the hydraulic reclamation soil body, and can after appropriate enhancement process the soil body uniformity.
However, three-dimensional drain yet suffers from situations below：
Situation one, three-dimensional drain are less with soil body contact surface, and in determined volume, the viscous fine particle of hydraulic-filled soft clay is easy
The filter cloth aggregation of encapsulation, causes silting and then weakens the drainage of destruction three-dimensional drain outside the three-dimensional drain；
Situation two, three-dimensional drain provides structural support by rigid material, if the weaker barged-in fill of three-dimensional drain is low, stands
Suspension standing during body displacement hull is difficult to the soil body especially higher in water level in barged-in fill, rheological characteristic is strong, intensity is very low causes which
Skew, if three-dimensional drain is higher than weak hydraulic reclamation soil thickness, during discharging consolidation, with the sedimentation of barged-in fill, rigidity is three-dimensional
Displacement hull easily punctures top vacuum sealing film；
Situation three, the transverse drainage passage of three-dimensional drain in the process of barged-in fill recently, because soil body flow is big and
Comprcssive strength is not enough, squeezes in such soil body in three-dimensional drain, support cannot play laterally row completely as soil strength is too low
Water body, cannot be fully deployed so as to likely result in transverse drainage passage, and after affecting drainage and processing, soil strength is equal
Even property.
The content of the invention
The present invention is in order to solve drawbacks described above present in prior art and deficiency, there is provided a kind of umbrella-type drainage arrangement and
Its water discharge method, strong applicability prevent silting effect good.
For solving above-mentioned technical problem, the present invention provides a kind of umbrella-type drainage arrangement, including skeleton and umbrella cloth, the skeleton
It is made up of longitudinal drainage pipe and transverse drain, the transverse drain is articulated with the longitudinal drainage pipe, and it is described horizontal
Drain pipe is connected with the longitudinal drainage pipe, and the skeleton outer surface coats a metafiltration cloth, and the skeleton is provided with several filters
Hole；The umbrella cloth is fixed on the transverse drain through the longitudinal drainage pipe, the umbrella cloth center and the longitudinal direction
Drain pipe is fixed together by tying rope；The top of the longitudinal drainage pipe is provided with the joint being connected with drainage pipeline.
Further, the umbrella cloth is provided with least one opening.
Further, the umbrella cloth is one layer or two-layer.
Further, the material of the umbrella cloth is water penetration geotextile.
Further, the geotextile is geotextiles, geomembrane or sponge.
A kind of water discharge method based on umbrella-type drainage arrangement, comprises the following steps：
Step one, assembles drainage arrangement；
Step 2, by drainage arrangement press-in processed weak soil；
Step 3, opening the vaccum-pumping equipment being connected with drainage pipeline carries out draining；
Step 4, draining terminate, and drainage arrangement is extracted the soil body using upper drawing machine tool.
Wherein, the step one specifically, first, after assembling skeleton, will coat filter cloth on the outside of skeleton；Secondly, according to quilt
Process soil property and select the umbrella cloth number of plies, and opening is set in umbrella cloth；Finally, umbrella cloth is tied up with transverse drain, and
Umbrella cloth is fixedly linked with longitudinal drainage pipe with bundle rope.
The Advantageous Effects reached by the present invention：The present invention is arranged on transverse drain with transverse drain as rib
Umbrella cloth so that in use, drives transverse drain to be fully deployed in processed soil property by umbrella cloth, not only enhances
Stability and drainage surface product when drainage arrangement is stood, and disperseed the grain density adsorbed on filter cloth, so as to good
Realize the function of three-dimensional drainage arrangement silting blocking in engineer applied.
Description of the drawings
The drainage arrangement closure state structural representation of Fig. 1 present invention；
The drainage arrangement closure state of Fig. 2 present invention is along cross-sectional schematic；
The drainage arrangement open mode structural representation of Fig. 3 present invention；
The drainage arrangement open mode schematic top plan view of Fig. 4 present invention；
Structural representation when Fig. 5 uses drainage arrangement draining.
Wherein：1 joint；2 longitudinal drainage pipes；3 filter clothes；4 filter openings；5 umbrella cloths；6 transverse drains；7 openings；8 bundle ropes；9 rows
Waterpipe；10 skeletons.
Specific embodiment
In order to be able to be better understood by technical characteristic, technology contents and its technique effect for reaching of the present invention, now by this
Bright accompanying drawing is described in detail in conjunction with the embodiments.
With reference to the accompanying drawings and examples patent of the present invention is further illustrated.
As Figure 1-4, the present invention provides a kind of umbrella-type drainage arrangement, including skeleton 10 and umbrella cloth 5, the skeleton 10 by
Longitudinal drainage pipe 2 and transverse drain 6 are constituted, and the transverse drain 6 is articulated with the longitudinal drainage pipe 2, and the horizontal stroke
Connect to drain pipe 6 with the longitudinal drainage pipe 2,10 outer surface of the skeleton coats a metafiltration cloth 3, the skeleton 10 is provided with
Several filter openings 4；The umbrella cloth 5 is fixed on the transverse drain 6 through the longitudinal drainage pipe 2,5 center of the umbrella cloth
Place is fixed together by tying rope 8 with the longitudinal drainage pipe 2；The top of the longitudinal drainage pipe 2 is provided with and 9 phase of drainage pipeline
Joint 1 even.
In order to reduce the pressure in drainage arrangement press-in processed weak soil, the umbrella cloth 2 is provided with opening 7, convenient horizontal
The soil body to 6 bottom of drain pipe influxs umbrella cloth top by opening.Further, open amount can be according to the flowing of processed weak soil
Property arrange.
The umbrella cloth is water penetration geotextile, such as geotextiles, geomembrane or sponge.Umbrella cloth 5 is set to one layer or two-layer,
The number of plies of umbrella cloth 5 has met the intensity of umbrella cloth 5 and the requirement that silting granule evacuates arrangement has been defined.
A kind of water discharge method based on umbrella-type drainage arrangement, comprises the following steps：
Step one, assembles drainage arrangement；First, after assembling skeleton, filter cloth will be coated on the outside of skeleton；Secondly, according to being located
Reason soil property selects the umbrella cloth number of plies, and arranges opening in umbrella cloth, low for soil strength, process of the water content more than liquid limit soil
The number of plies can be increased；, water content high for soil strength can dredge the stifled reduction number of plies less than the process of liquid limit soil；Finally, by umbrella cloth with
Transverse drain is tied up, and umbrella cloth is fixedly linked with longitudinal drainage pipe with bundle rope；
Step 2, by drainage arrangement press-in processed weak soil, setting speed needs suitably so that umbrella cloth bottom weak soil body gushes
To top, reduce three-dimensional drain and set desirable pressure；
Step 3, opening the vaccum-pumping equipment being connected with drainage pipeline carries out draining；
Step 4, draining terminate, and drainage arrangement is extracted the soil body using upper drawing machine tool.
The drainage arrangement provided using the present invention carries out draining, as shown in figure 5, after to set, then lead to
Cross drainage pipeline to be connected with vaccum-pumping equipment, form weak soil drainage system.
Below the present invention is disclosed with preferred embodiment, so it is not intended to limiting the invention, it is all to take equivalent
Or the technical scheme obtained by the scheme of equivalent transformation, all fall within protection scope of the present invention.
Claims (2)
1. using the water discharge method of umbrella-type drainage arrangement, it is characterised in that：The drainage arrangement includes skeleton and umbrella cloth, the bone
Frame is made up of longitudinal drainage pipe and transverse drain, and the transverse drain is articulated with the longitudinal drainage pipe, and the horizontal stroke
Connect to drain pipe with the longitudinal drainage pipe, the skeleton outer surface coats a metafiltration cloth, the skeleton is provided with several
Filter opening；The umbrella cloth is fixed on the transverse drain through the longitudinal drainage pipe, and the umbrella cloth center is vertical with described
It is fixed together to drain pipe by tying rope；The top of the longitudinal drainage pipe is provided with the joint being connected with drainage pipeline；It is described
Umbrella cloth is provided with least one opening；The umbrella cloth is one layer or two-layer；The material of the umbrella cloth is water penetration geotextile；Institute
Geotextile is stated for geotextiles or geomembrane；Water discharge method is comprised the following steps：
Step one, assembles drainage arrangement；
Step 2, by drainage arrangement press-in processed weak soil；
Step 3, opening the vaccum-pumping equipment being connected with drainage pipeline carries out draining；
Step 4, draining terminate, and drainage arrangement is extracted the soil body using upper drawing machine tool.
2. water discharge method according to claim 1, it is characterised in that：The step one specifically, first, assembles skeleton
Afterwards, filter cloth will be coated on the outside of skeleton；Secondly, the umbrella cloth number of plies is selected according to processed soil property, and opening is set in umbrella cloth；Most
Afterwards, umbrella cloth is tied up with transverse drain, and umbrella cloth is fixedly linked with longitudinal drainage pipe with bundle rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510676790.XA CN105386434B (en) | 2015-10-19 | 2015-10-19 | Umbrella type drainage device and drainage method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510676790.XA CN105386434B (en) | 2015-10-19 | 2015-10-19 | Umbrella type drainage device and drainage method thereof |
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| Publication Number | Publication Date |
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| CN105386434A CN105386434A (en) | 2016-03-09 |
| CN105386434B true CN105386434B (en) | 2017-03-22 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107905211B (en) * | 2017-12-12 | 2023-08-29 | 天津城建大学 | Electric osmosis electrode capable of quickly crusting by newly dredger fill and use method thereof |
| CN110206013B (en) * | 2019-03-26 | 2021-11-12 | 河海大学 | Ultra-soft dredger fill shallow layer curing device and curing method thereof |
| CN111842462B (en) * | 2020-06-19 | 2022-05-20 | 河海大学 | Polluted sediment multi-pole electric restoration and construction method thereof |
| CN112127344A (en) * | 2020-08-28 | 2020-12-25 | 盐城工学院 | Rapid and uniform treatment method for fluid mud through vacuum preloading |
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| KR100719231B1 (en) * | 2006-10-20 | 2007-05-18 | (주) 일신하이텍 | Smooth ground improvement construction |
| JP2009179945A (en) * | 2008-01-29 | 2009-08-13 | Yoshitaka Igawa | Well conduit for road and its construction method |
| CN101230568B (en) * | 2008-02-22 | 2010-06-16 | 南水北调东线江苏水源有限责任公司 | U-shaped soft vacuum dredged silt rapid drainage method |
| CN101357817B (en) * | 2008-09-11 | 2010-06-09 | 中国科学院武汉岩土力学研究所 | Stereoscopic network drainage for accelerating water drainage consolidation velocity of hydraulic mud fill sludge |
| CN102226337B (en) * | 2011-04-22 | 2012-07-04 | 河海大学 | Three-dimensional drain and construction method thereof |
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