CN105178284A - Pulsation vacuum preloading drainage device and method of mucky soil soft foundation - Google Patents
Pulsation vacuum preloading drainage device and method of mucky soil soft foundation Download PDFInfo
- Publication number
- CN105178284A CN105178284A CN201510548410.4A CN201510548410A CN105178284A CN 105178284 A CN105178284 A CN 105178284A CN 201510548410 A CN201510548410 A CN 201510548410A CN 105178284 A CN105178284 A CN 105178284A
- Authority
- CN
- China
- Prior art keywords
- vacuum
- way cock
- pulse
- drainage
- main line
- 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.)
- Granted
Links
Abstract
The invention provides a pulsation vacuum preloading drainage device and a method of mucky soil soft foundation. The device comprises a vacuumizing main pipeline provided with a vacuumizing part, a one-way valve and a valve control part, and a bypass branch, wherein the vacuumizing part is connected with the one-way valve through a vacuum pipeline; the one-way valve is connected with the valve control part; the valve control part controls the opening/closing frequency of the one-way valve; the vacuum degree of the main pipeline generates high-frequency turbulence through periodical opening/closing of the one-way valve; a continuous vacuumizing effect of the vacuumizing part on the main pipeline is changed to an intermittent vacuumizing effect, so that airflows in the main pipeline are formed to high-frequency temporary pulse; two end joints of the bypass branch are respectively arranged at the two ends of the one-way valve; and when the one-way valve is closed, water currents pass through from the bypass branch to guarantee the continuity of drainage process. The device is easy to be installed and disassembled, is low in energy consumption, is excellent in effect, can be recycled, and is lower in cost.
Description
Technical field
The present invention relates to high effective dehydration device and the method for the soft base of a kind of mucky soil, particularly, relate to the pulse vacuum prepressing water discharge device and method of the soft base of a kind of mucky soil.
Background technology
Land reclamation is the important channel solving China's shortage of land resource.Future Ten year, China will utilize barged-in fill to carry out Tidal Flat Reclamation more on a large scale.Vacuum preloading engineering method is the main engineering method for the treatment of of soft foundation engineering construction, but the permeability of mucky soil is extremely low, transmits vacuum and discharging consolidation is very difficult in mucky soil, needs chronic; For muddy foundation, the treatment effect of traditional vacuum method is difficult to reach the requirement of building to bearing capacity of foundation soil.For strengthening the Foundation Treatment Effect of mucky soil, existing vacuum precompressed soft foundation treatment technology normally increases the plate density of plastic draining board, extend the construction period of vacuum precompressed soft foundation process, and it still has weak point to the treatment effect of roadbed of alluvial silt.
In dredging and reclamation construction, early stage, moisture content was very high, how to reduce the key job that hydraulic reclamation soil's water content is hydraulic reclamation district basement process.The moisture content height of the soil body determines the size of hydraulic reclamation district bearing capacity of foundation soil.The main method of vacuum preloading quick-discharging consolidation that adopts carries out drainage sunk well for hydraulic fill foundation at present.The energy loss of the method is comparatively large, and the duration is longer, and influence factor is more.
Through finding prior art document and patent retrieval:
China Patent No.: CN101215832A, patent name is: directly discharging type vacuum prepressing ground foundation treatment method, a kind of directly discharging type vacuum prepressing ground foundation treatment method of this disclosure of the invention, vacuum plant is provided with supervisor, supervisor separates some arms, each arm is connected with band drain by tube connector, is directly discharged by the moisture in band drain.This invention eliminates horizontal drainage sand cushion and vacuum chimney filter, filter membrane in existing processing method, directly the plastic draining board in soft base and vacuum tube is connected with tube connector.Its main weak point is: it is easily blocked that the band drain 1) in soft base crosses aquaporin, can have a strong impact on drainage effect; 2) this processing method drainage efficiency is lower, and drainage period is longer, affects the duration.
China Patent No.: 201310692142.4, open (bulletin) number: CN103711118A, patent name: high electric field pulse strengthens vacuum preloading soft foundation processing method, the technology of this disclosure of the invention is: by arranging high electric field pulse well in operation in vacuum preloading soft foundation processing region, the installation high-voltage pulse power, in high electric field pulse well in operation, Vertical dimension places sparking electrode, high-voltage pulse power source is connected with the ground surface end high voltage cable of sparking electrode, high-voltage pulse power source is started during vacuum preloading construction, high-voltage pulse power source is made to export high-voltage dc pulse electric current, high-voltage dc pulse electric current is transferred to sparking electrode by high voltage cable, sparking electrode is to the Soft Soil Layer release high-voltage dc pulse electric current in the soft foundation processing region of sparking electrode surrounding, high electric field pulse process is carried out to the Soft Soil Layer in soft foundation processing region.Its weak point is: 1) need arrange high electric field pulse well in operation in soft foundation processing region, and engineering difficulty is large, and cost is high, and can impact foundation strength; 2) soft foundation processing region is wide, and the scope of operation is large, and electric pulse loss in soil is large, and its method is difficult to produce a desired effect; 3) export high-voltage dc pulse electric current in the subgrade region that moisture content is high, operation danger is high; 4) power consumption of this processing method is large, and cost is high.
In addition, China Patent No.: 200710025252.X, patent name: compound vacuum precompressed soft foundation comprehensive strengthening method.The technology of this disclosure of the invention is: have passed the compound using vacuum preloading and electroosmosis dewatering two engineering method, remain the advantage of former vacuum preloading, simultaneously in conjunction with electroosmosis dewatering, realize the utilization of vacuum preloading engineering method on mud class Soft Soil Layer ground, and the reinforcement of soft soil degree of depth is increased, the engineering time shortens.Its weak point is that the earth is as a large conductor, and it is extremely strong to the diluting effect of electric energy, and the method for electric osmose is applied in current path treatment of soft foundation being difficult to be formed expection, thus is difficult to the treatment effect realizing expection.
Summary of the invention
For defect of the prior art, the object of this invention is to provide the pulse vacuum prepressing water discharge device and method of the soft base of a kind of mucky soil, drainage effect is significantly improved.
For achieving the above object, present invention employs following technical scheme:
According to an aspect of the present invention, the pulse vacuum prepressing water discharge device of the soft base of a kind of mucky soil is provided, comprise the main line that vacuumizing part, one-way cock, valve control components are housed, and other spending road, wherein: be connected by vacuum line between vacuumizing part with one-way cock, one-way cock connects valve control components;
Described valve control components controls the opening and closing frequency of described one-way cock, the vacuum of main line is made to produce high frequency turbulent fluctuation by the periodicity opening and closing of described one-way cock, the lasting vacuum action of vacuumizing part to main line is changed into intermittent vacuum action, thus makes air-flow in main line form high frequency transient pulse;
Described other spending road two end interface is arranged at the two ends of one-way cock respectively, and when described one-way cock is closed, current pass through from described other spending road, thus ensure the continuity of drainage procedure.
Preferably, described one-way cock is the normal opening one-way valve of straight, and the normal opening one-way valve installation of straight is on the main line of vacuumizing part air inlet port front end.
Preferably, described valve control components adopts circulation timing power-supply controller of electric.
Preferably, one-way cock is walked around on described other spending road, and when described one-way cock is closed, described other spending road communicates with described main line.
Preferably, described vacuumizing part is provided with pressure meter, for the vacuum in real time record vacuum line.
Preferably, the junction of described vacuum line and vacuumizing part, one-way cock to be connected silk with pagoda-shaped and to seal to ensure to connect airtight.
Preferably, described device is provided with water drainage part further, and described water drainage part is connected with main line end by crossover sub, and described water drainage part is inserted in pending Soft Soil Layer, as vertical drainage passage.
Preferably, described water drainage part is made up of some high performance plastics band drains, its outsourcing filter membrane, and described filter membrane adopts geotextiles.
According to an aspect of the present invention, the pulse vacuum prepressing water discharge method of the soft base of a kind of mucky soil is provided, described method connects an one-way cock in the vacuumizing part air inlet port front end of existing vacuum preloading drainage system, valve control components is adopted to control the opening and closing frequency of described one-way cock, the vacuum of main line is made to produce high frequency turbulent fluctuation by the periodicity opening and closing of described one-way cock, the lasting vacuum action of vacuumizing part to main line is changed into intermittent vacuum action, thus make air-flow in main line form high frequency transient pulse, the shear action of aggravation gas, being delivered to the main line end soil body makes it that shear rheology occur, impel soil body Quick drainage Settlement Consolidation further, the high frequency transient pulse effect of air-flow plays obvious facilitation to the anti-blocking of penetrating passage in the geotextiles on soil body internal drainage plate surface and the soil body,
The two ends of described one-way cock connect spending road two end interface on one side respectively, and when described one-way cock is closed, current pass through from described other spending road, thus ensure the continuity of drainage procedure.
Concrete, described method comprises the steps:
1. described one-way cock is accessed in existing vacuum preloading drainage system, lay described pulse vacuum prepressing water discharge device according to the method for arranging of vacuum preloading drainage system in pending region;
2. described valve control components is set to circulating working mode;
3. open vacuumizing part to carry out vacuumizing draining, open one-way cock synchronous working simultaneously;
4. along with the reduction of moisture content, at different bleeding stage, control described one-way cock opening and closing operating frequency by described valve control components and carry out frequency conversion, strengthen air-flow shear action, more rationally promote draining efficiently;
5. connect described other spending road two end interface respectively at the two ends of described one-way cock, when described one-way cock is closed, current pass through from described other spending road, thus ensure the continuity of drainage procedure.
Compared with prior art, the present invention has following beneficial effect:
The present invention improves on the basis of vacuum preloading drainage, simple to operate, use safety, and with low cost, energy consumption is lower, is significantly improved through indoor model test test drainage effect; The present invention can at difference pending region Reusability, an one-way cock and an other spending road only need be installed additional in existing vacuum prepressing system, and according to on-the-spot actual condition regulation and control opening and closing frequency, easy installing/dismounting, reaches the multi-efficiency such as high-efficiency and economic, energy-saving safety.
Accompanying drawing explanation
By reading the detailed description done non-limiting example with reference to the following drawings, other features, objects and advantages of the present invention will become more obvious:
Fig. 1 is the apparatus structure schematic diagram of the present invention one preferred embodiment;
In figure: the normal opening one-way valve 2 of vacuum pump 1, straight, vacuum system main line 3, band drain 4, diaphragm seal 5, valve control components 6, other spending road 7.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in detail.Following examples will contribute to those skilled in the art and understand the present invention further, but not limit the present invention in any form.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, some distortion and improvement can also be made.These all belong to protection scope of the present invention.
Embodiment 1
For silt median particle diameter d
50=5 μm, moisture content is the mud of 86%, and the present embodiment provides the pulse vacuum prepressing water discharge device of the soft base of a kind of mucky soil, in the present embodiment, vacuumizing part adopts vacuum pump, and one-way cock adopts the normal opening one-way valve 2 of straight, and valve control components 6 adopts circulation timing power-supply controller of electric.Certainly, in other embodiments, also can select other parts or equipment, corresponding function can be realized.
Concrete, described device is made up of vacuum pump 1, the normal opening one-way valve 2 of straight, vacuum system main line 3, band drain 4, diaphragm seal 5, valve control components 6 and other spending road 7, wherein: vacuumizing part, one-way cock, valve control components are arranged on main line, be connected with main line 3 between vacuum pump 1 with the normal opening one-way valve 2 of straight, junction to connect silk with pagoda-shaped and seals to ensure to connect airtight, makes to have higher vacuum in system; The normal opening one-way valve 2 of straight is arranged on the air inlet port leading portion of vacuum pump 1, and connect power supply with by-pass valve control opening and closing via valve control components 6, two end interfaces on other spending road 7 are arranged at the two ends of the normal opening one-way valve 2 of straight respectively, band drain 4 is connected to the end of main line 3 by crossover sub, and inserts the soil body as crossing gas drainage channel.
In the present embodiment, described vacuum pump 1 rated voltage 220V/50HZ, appearance and size 395mm*145mm*318mm, speed of exhaust 14.4m
3/ h, for formation vacuum of bleeding, it carries pressure meter, can the intrasystem vacuum of real time record pulse vacuum prepressing water discharge.
In the present embodiment, the normal opening one-way valve 2 of described straight, model is 2W-15K, size long 62mm* height 123mm, 4 points of bores, rated voltage AC220v, two ends by 4 points be connected with main line 3 silk, and connect power supply to control the opening and closing of one-way cock 2 via valve control components 6.
In the present embodiment, described vacuum system main line 3 is made by the pvc pipe of internal diameter 2cm, and its length can change according to on-site actual situations, and in drainage system main line tail end tap multiply vacuum manifold to connect multiple band drain 4, can be used as gurgling passage.
In the present embodiment, described band drain 4 is made up of high performance plastics band drain, and plastic draining board length is 1.5m, spacing 50cm × 50cm, and its outsourcing diaphragm seal 5 adopts geotextiles, is inserted in pending Soft Soil Layer, as vertical drainage passage.
In the present embodiment, described valve control components 6 adopts switching electrician working frequency to be the circulation timing power switch of energising 2 seconds, power-off 4 seconds, can realize the accurate control to one-way cock opening and closing.
In the present embodiment, one-way cock 2 is walked around on described other spending road 7, and when described one-way cock 2 is closed, described other spending road 7 communicates with described main line 3.The caliber on other spending road 7 is less.
The job step of the present embodiment pulse vacuum prepressing water discharge method is as follows:
1, reequip vacuum preloading drainage system, normal for straight opening one-way valve 2 is accessed in vacuum system, lay pulse vacuum prepressing water discharge device according to the method for arranging of vacuum preloading drainage system in pending region;
2, valve control components 6 is set to energising 2 seconds, the power-off circulating working mode of 4 seconds;
3, open vacuum pump 1 to carry out vacuumizing draining, open straight normal opening one-way valve 2 synchronous working simultaneously;
4, along with the reduction of moisture content, at different bleeding stage, adopt valve control components 6 to control straight normal opening one-way valve 2 opening and closing operating frequency (making frequency-conversion processing), strengthen air-flow shear action, more rationally promote draining efficiently;
5, connect spending road two end interface on one side respectively at the two ends of one-way cock, when described one-way cock is closed, current pass through from spending road, side, thus ensure the continuity of drainage procedure.
Implementation result: through actual tests checking, for silt median particle diameter d
50=5 μm, the mud of moisture content 86%, vacuum-68kpa, in identical water discharge time, compared to original vacuum prepressing water discharge method, moisture content changing down will significantly improve, and illustrate that the panting action that the instantaneous opening and closing of the periodicity of valve produces facilitates vacuum drainage, this panting action can good facilitation to crossing in geotextiles and soil that aquaporin anti-blocking play, and dehydrating effect improves obvious.
Embodiment 2
For sediment grain size d
50=8 μm, moisture content is the mud of 75%, the present embodiment provides the pulse vacuum prepressing water discharge device of the soft base of a kind of mucky soil, be made up of vacuum pump 1, the normal opening one-way valve 2 of straight, vacuum system main line 3, band drain 4, diaphragm seal 5, valve control components 6 and other spending road 7, each component connecting method is with described in embodiment 1.
In the present embodiment, described vacuum pump 1 rated voltage 380V/60HZ, speed of exhaust 35m
3/ h, for formation vacuum of bleeding, it carries pressure meter, can vacuum in Microprocessor System for Real Time Record.
In the present embodiment, the normal opening one-way valve 2 of described straight is 1.5 person's pulse on the wrist footpaths, rated voltage AC380v, and two ends are connected with main line 3 is airtight, and connects power supply to control its valve opening and closing via valve control components 6.
In the present embodiment, described vacuum tube 3 is made by the PE pipe of internal diameter 5cm, and its length can change according to on-site actual situations, and can main line tail end can tap multiply vacuum manifold to connect multiple band drain 4, be used as gurgling passage.
In the present embodiment, described band drain 4 is made up of high performance plastics band drain, and plastic draining board length is 1.5m, spacing 80cm × 80cm, and its outsourcing diaphragm seal 5 adopts geotextiles, is inserted in pending Soft Soil Layer, as vertical drainage passage.
In the present embodiment, described valve control components 6 adopts switching electrician working frequency to be energising 2 seconds, and the power-off circulation timing power switch of 2 seconds, can realize the accurate control to valve opening and closing.
The job step of the present embodiment pulse vacuum prepressing water discharge method is as follows:
1, reequip vacuum preloading drainage system, normal for straight opening one-way valve 2 is accessed in vacuum system, lay pulse vacuum prepressing water discharge device according to the method for arranging of vacuum preloading drainage system in pending region;
2, valve control components 6 is set to energising 2 seconds, the power-off circulating working mode of 2 seconds;
3, open vacuum pump 1 to carry out vacuumizing draining, open straight normal opening one-way valve 2 synchronous working simultaneously;
4, along with the reduction of moisture content, at different bleeding stage, adopt valve control components 6 to control straight normal opening one-way valve 2 opening and closing operating frequency (making frequency-conversion processing), strengthen air-flow shear action, more rationally promote draining efficiently;
5, connect spending road two end interface on one side respectively at the two ends of one-way cock, when stating one-way cock and closing, current pass through from spending road, side, thus ensure the continuity of drainage procedure.
Implementation result: for silt median particle diameter d
50=8 μm, the mud of moisture content 75%, vacuum-80kpa, in identical water discharge time, compared to original vacuum prepressing water discharge method, the panting action that the instantaneous opening and closing of the periodicity of valve produces facilitates vacuum drainage, and this panting action can good facilitation to anti-blocking the playing of crossing aquaporin in geotextiles and soil, and dehydrating effect improves obvious.
The easy installing/dismounting of package unit of the present invention, energy consumption is low effective, can Reusability and cost is lower, reaches the safe multi-efficiency of high-efficiency and economic.
Above specific embodiments of the invention are described.It is to be appreciated that the present invention is not limited to above-mentioned particular implementation, those skilled in the art can make various distortion or amendment within the scope of the claims, and this does not affect flesh and blood of the present invention.
Claims (10)
1. the pulse vacuum prepressing water discharge device of the soft base of mucky soil, it is characterized in that, comprise the main line that vacuumizing part, one-way cock, valve control components are housed, and other spending road, wherein: be connected by vacuum line between vacuumizing part with one-way cock, one-way cock connects valve control components;
Described valve control components controls the opening and closing frequency of described one-way cock, the vacuum of main line is made to produce high frequency turbulent fluctuation by the periodicity opening and closing of described one-way cock, the lasting vacuum action of vacuumizing part to main line is changed into intermittent vacuum action, thus makes air-flow in main line form high frequency transient pulse;
Described other spending road two end interface is arranged at the two ends of one-way cock respectively, and when described one-way cock is closed, current pass through from described other spending road, thus ensure the continuity of drainage procedure.
2. the pulse vacuum prepressing water discharge device of the soft base of mucky soil according to claim 1, is characterized in that, described one-way cock is the normal opening one-way valve of straight, and the normal opening one-way valve installation of straight is on the main line of vacuumizing part air inlet port front end.
3. the pulse vacuum prepressing water discharge device of the soft base of a kind of mucky soil according to claim 2, is characterized in that, described valve control components adopts circulation timing power-supply controller of electric.
4. the pulse vacuum prepressing water discharge device of the soft base of a kind of mucky soil according to claim 1, is characterized in that, one-way cock is walked around on described other spending road, and when described one-way cock is closed, described other spending road communicates with described main line.
5. the pulse vacuum prepressing water discharge device of the soft base of a kind of mucky soil according to claim 1, it is characterized in that, described vacuumizing part is provided with pressure meter, for the vacuum in real time record vacuum line.
6. the pulse vacuum prepressing water discharge device of the soft base of a kind of mucky soil according to claim 1, is characterized in that, the junction of described vacuum line and vacuumizing part, one-way cock to be connected silk with pagoda-shaped and to seal to ensure to connect airtight.
7. the pulse vacuum prepressing water discharge device of the soft base of a kind of mucky soil according to any one of claim 1-6, it is characterized in that, described device is provided with water drainage part further, described water drainage part is connected with main line end by crossover sub, described water drainage part is inserted in pending Soft Soil Layer, as vertical drainage passage.
8. the pulse vacuum prepressing water discharge device of the soft base of a kind of mucky soil according to claim 7, is characterized in that, described water drainage part is made up of some high performance plastics band drains, its outsourcing filter membrane, and described filter membrane adopts geotextiles.
9. the pulse vacuum prepressing water discharge method of the soft base of mucky soil adopting device described in any one of claim 1-8 to realize, it is characterized in that, described method connects an one-way cock in the vacuumizing part air inlet port front end of existing vacuum preloading drainage system, valve control components is adopted to control the opening and closing frequency of described one-way cock, the vacuum of main line is made to produce high frequency turbulent fluctuation by the periodicity opening and closing of described one-way cock, the lasting vacuum action of vacuumizing part to main line is changed into intermittent vacuum action, thus make air-flow in main line form high frequency transient pulse, the shear action of aggravation gas, being delivered to the main line end soil body makes it that shear rheology occur, impel soil body Quick drainage Settlement Consolidation further, the high frequency transient pulse effect of air-flow plays obvious facilitation to the anti-blocking of penetrating passage in the geotextiles on soil body internal drainage plate surface and the soil body,
The two ends of described one-way cock connect spending road two end interface on one side respectively, and when described one-way cock is closed, current pass through from described other spending road, thus ensure the continuity of drainage procedure.
10. the pulse vacuum prepressing water discharge method of the soft base of a kind of mucky soil according to claim 9, it is characterized in that, described method comprises the steps:
1. described one-way cock is accessed in existing vacuum preloading drainage system, lay described pulse vacuum prepressing water discharge device according to the method for arranging of vacuum preloading drainage system in pending region;
2. described valve control components is set to circulating working mode;
3. open vacuumizing part to carry out vacuumizing draining, open one-way cock synchronous working simultaneously;
4. along with the reduction of moisture content, at different bleeding stage, control described one-way cock opening and closing operating frequency by described valve control components and carry out frequency conversion, strengthen air-flow shear action, more rationally promote draining efficiently;
5. connect described other spending road two end interface respectively at the two ends of described one-way cock, when described one-way cock is closed, current pass through from described other spending road, thus ensure the continuity of drainage procedure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510548410.4A CN105178284B (en) | 2015-08-31 | 2015-08-31 | A kind of pulse vacuum prepressing water discharge device and method of the soft base of muck soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510548410.4A CN105178284B (en) | 2015-08-31 | 2015-08-31 | A kind of pulse vacuum prepressing water discharge device and method of the soft base of muck soil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105178284A true CN105178284A (en) | 2015-12-23 |
| CN105178284B CN105178284B (en) | 2017-07-11 |
Family
ID=54900674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510548410.4A Active CN105178284B (en) | 2015-08-31 | 2015-08-31 | A kind of pulse vacuum prepressing water discharge device and method of the soft base of muck soil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105178284B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108330945A (en) * | 2018-03-29 | 2018-07-27 | 中国建筑第二工程局有限公司 | Vacuum precompressed soft foundation processing membrane device goes out membranous system and its construction method |
| CN114718044A (en) * | 2022-02-07 | 2022-07-08 | 华南理工大学 | Resonant vacuum preloading system and soft soil reinforcing method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02308007A (en) * | 1989-05-22 | 1990-12-21 | Shimizu Corp | Soil compaction of sandy ground |
| CN103205961A (en) * | 2013-03-25 | 2013-07-17 | 河海大学 | Asynchronous vacuum water-sucking preloading method for ultra-soft soil |
| CN103758110A (en) * | 2014-01-21 | 2014-04-30 | 河海大学 | Method for reinforcing soft clay foundation |
| CN104452736A (en) * | 2014-12-05 | 2015-03-25 | 水利部交通运输部国家能源局南京水利科学研究院 | Intermittent vacuum precompression device and soft foundation treatment method of intermittent vacuum precompression device |
-
2015
- 2015-08-31 CN CN201510548410.4A patent/CN105178284B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02308007A (en) * | 1989-05-22 | 1990-12-21 | Shimizu Corp | Soil compaction of sandy ground |
| CN103205961A (en) * | 2013-03-25 | 2013-07-17 | 河海大学 | Asynchronous vacuum water-sucking preloading method for ultra-soft soil |
| CN103758110A (en) * | 2014-01-21 | 2014-04-30 | 河海大学 | Method for reinforcing soft clay foundation |
| CN104452736A (en) * | 2014-12-05 | 2015-03-25 | 水利部交通运输部国家能源局南京水利科学研究院 | Intermittent vacuum precompression device and soft foundation treatment method of intermittent vacuum precompression device |
Non-Patent Citations (1)
| Title |
|---|
| 王攀铭等: ""间歇性真空预压加固软土地基的机理分析"", 《甘肃水利水电技术》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108330945A (en) * | 2018-03-29 | 2018-07-27 | 中国建筑第二工程局有限公司 | Vacuum precompressed soft foundation processing membrane device goes out membranous system and its construction method |
| CN114718044A (en) * | 2022-02-07 | 2022-07-08 | 华南理工大学 | Resonant vacuum preloading system and soft soil reinforcing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105178284B (en) | 2017-07-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102733371B (en) | Closed direct-sucking sectional vacuum preloading foundation treatment method | |
| CN105714761B (en) | A kind of vertical layered weak soil quick consolidation method and device of drawing water | |
| CN204753566U (en) | It presses diverging device to be suitable for leading of vacuum pre -compaction foundation stabilization | |
| CN106595802A (en) | Method of monitoring of underground water outside deep foundation pit, warning and automatic recharge construction | |
| CN107859064A (en) | A kind of prefabricated piping lane is connected waterproof construction and construction method with cast-in-place piping lane | |
| CN207597428U (en) | Prefabricated piping lane is connected waterproof construction with cast-in-place piping lane | |
| CN202007402U (en) | Integrated light well plastic draining and precipitating well point pipe | |
| CN108776098A (en) | A kind of wall anti-permeability performance on-site detecting device | |
| CN105178284A (en) | Pulsation vacuum preloading drainage device and method of mucky soil soft foundation | |
| CN203688554U (en) | Equipment for simulating rainfall scouring action to pavement material | |
| CN205975650U (en) | Building automation drainage system | |
| CN106088123B (en) | A kind of sand geology steel tube well drop water level device and its construction method | |
| CN103422565B (en) | Construction method for waterlogging removing of outdoor cable chute | |
| CN103866756B (en) | Oversized-area efficient energy-saving vacuumizing soft foundation treatment system and construction method | |
| CN206267314U (en) | It is embedded with the house that the modularization wall of distributed pipeline builds | |
| CN208272403U (en) | A kind of spliced ring network cabinet precast construction | |
| CN203768881U (en) | Water seepage draining device for corridors of mountain and dam body | |
| CN206903689U (en) | A kind of and water delivery and the Railway Tunnel of communication function | |
| CN103352458B (en) | Controllable type negative pressure of vacuum well high-efficiency water-absorbing concretion method under film | |
| CN202865974U (en) | Vacuum rainwater drainage system | |
| CN107700786A (en) | A kind of energy-saving water collecting floor and its collection device | |
| CN105970909B (en) | Well point plastic strip vacuum preloading seepage consolidation joint precipitating, pre-pressing dynamic consolidation method | |
| CN203768891U (en) | Extra-large-area efficient energy-saving evacuation soft foundation treatment system | |
| CN209194585U (en) | It is a kind of with waterproof, the underground pipe gallery structure of drain function | |
| CN202755358U (en) | Underground water layering backwater system of ground source heat pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |