CN105442524A - Soft foundation rapid consolidation device - Google Patents
Soft foundation rapid consolidation device Download PDFInfo
- Publication number
- CN105442524A CN105442524A CN201510773799.2A CN201510773799A CN105442524A CN 105442524 A CN105442524 A CN 105442524A CN 201510773799 A CN201510773799 A CN 201510773799A CN 105442524 A CN105442524 A CN 105442524A
- Authority
- CN
- China
- Prior art keywords
- header
- water level
- tube wall
- water
- fillter section
- 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
- 238000007596 consolidation process Methods 0.000 title abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 83
- 210000003205 muscle Anatomy 0.000 claims description 8
- 239000004746 geotextile Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 abstract description 9
- 238000001914 filtration Methods 0.000 abstract 8
- 230000003014 reinforcing effect Effects 0.000 abstract 2
- 239000004744 fabric Substances 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 238000005259 measurement Methods 0.000 description 6
- 239000002689 soil Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000003467 diminishing effect Effects 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical group OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000002604 ultrasonography Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- 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
- E02D2600/00—Miscellaneous
- E02D2600/10—Miscellaneous comprising sensor means
Landscapes
- 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
Disclosed is a soft foundation rapid consolidation device. The soft foundation rapid consolidation device comprises a water collector pipe and a filtering device disposed on the water collector pipe. The filtering device comprises a water inlet hole formed in the pipe wall of the filtering section of the water collector pipe, reinforcing ribs arranged on the outer side of the pipe wall of the filtering section of the water collector pipe and geotechnical cloth which wraps the reinforcing ribs. The water inlet hole comprises a water inlet formed in the lower end of the pipe wall of the filtering section of the water collector pipe and a water inlet formed in the upper end of the pipe wall of the filtering section of the water collector pipe. The water inlet formed in the lower end of the pipe wall of the filtering section of the water collector pipe is not provided with a sealing element, and the water inlet formed in the upper end of the pipe wall of the filtering section of the water collector pipe is provided with a sealing element.
Description
Technical field
The invention belongs to Soft Soil Subgrade Treatment Techniques field in construction work, especially relate to the rapidly solidified device of a kind of subgrade.
Background technology
Soft foundation is the special foundation that a kind of soft layer referring to that intensity is low, decrement is higher is formed, and generally has the features such as low bearing capacity, water content is high, soft soil layer is deep, can use after thus having to pass through basement process.Along with the quickening of China's modernization, in the process of (coastal) urban construction, a large amount of soft foundations needs process
The processing method that current weak soil is conventional mainly contains vacuum method, preloading, Vacuum-loading Pre-pressing Method, three kinds of methods are and adopt static(al) consolidation, need wait for the solidification of mud face or first lay geo-grid, geotextiles, fill out more than 0.8m sand cushion again, after mud top layer has some strength, artificial and plant equipment could carry out later process construction thereon, and cause the required duration longer, place intensity is not high.On the other hand, when place will spend the longer pumpdown time in order to make dredging mud when 80kPa negative pressure of vacuum is issued to enough consolidation indexs, and as the serious smear effect of dredging mud to band drain that the plastic draining board of vertical drainage system forms because of ultra-fine soil particle, fallen sharply in effective pumpdown time, this conflict will unavoidably occur, thus have a strong impact on the consolidation effect of vacuum method.
In order to rapidly solidified soft base in prior art, as 201110258093.4, employ the drain pipe system of cuff submersible pump in header, header and gutter form dual pipe, under the effect of vacuum pump, make soft base under the effect of atmospheric pressure, separate out moisture rapidly and enter header, got rid of fast by submersible pump and gutter, reach the effect of rapidly solidified soft base.But the rapidly solidified device of soft base of the prior art also exists following shortcoming: 1, at the draining initial stage, in soft base, water content is higher, the water yield entering header is greater than submersible pump displacement, water level in header is made to increase fast, vacuum pump may be inhaled into, affect vacuum pump efficiency, even may damage vacuum pump; 2, in the draining latter end time, because water content in soft base reduces, enter header comparatively slow, make the water level in header rise slowly, the water level in header arrives below warning line, thus submersible pump quits work, but in soft base, residual water does not also drain completely.
Summary of the invention
The invention provides the rapidly solidified device of a kind of subgrade and construction method thereof, the residual water in soft base can be discharged as much as possible, and vacuum pump ground performance can not be affected.
As one aspect of the present invention, provide the rapidly solidified device of a kind of subgrade, comprise header and the filter being arranged at header, described filter comprises the inlet opening on header fillter section tube wall, be arranged on put more energy into muscle and the geotextiles be wrapped in outside muscle of putting more energy into outside fillter section tube wall, the gutter that an external diameter is less than header internal diameter is provided with in described header, the upper end mouth of pipe of described header is provided with the nozzle device for sealing header, the upper end mouth of pipe of described gutter connects this nozzle device, the lower end mouth of pipe of described gutter is connected with submersible pump, described header is provided with can by the vacuum hole that vacuumizes in header and the unidirectional hole with extraneous one-way conduction, described vacuum hole is connected with vacuum pump, described header lower end is level cross-sectionn diminishing shape from top to bottom, described submersible pump is positioned at described header lower end.
Preferably, described inlet opening comprises the water inlet being positioned at header fillter section tube wall lower end and the water inlet being positioned at header fillter section tube wall upper end, the described water inlet being positioned at header fillter section tube wall lower end is the hole not arranging closure elements, described in be positioned at header fillter section tube wall upper end water inlet be the hole that closure elements is set.
Preferably, described closure elements, when the water level of header is higher than specific water level, closes the described hole arranging closure elements.
Preferably, described closure elements is the seal cover of band flexible member, when the water level of header is higher than specific water level, due to the suction of vacuum pump, seal cover is opened, and the described hole arranging closure elements is opened, when the water level in header is higher than specific water level, due to the screen resilience of hydraulic pressure and flexible member itself, seal cover is closed.
Preferably, the rapidly solidified device of this subgrade also comprises the level measurement device be arranged in nozzle device, described level measurement device is measured for the water level of header, when the water level in header is higher than specific high threshold, stop described vacuum pump, when the water level in header is reduced to specific Low threshold from specific high threshold, restart vacuum pump.Preferably, described level measurement device is sonac, by the timing to water level reflectance ultrasound echo, and determines the water level in header.
Invent as another one of the present invention, provide the construction method of the rapidly solidified device of above-mentioned subgrade, it comprises the steps: 1) in soft base, become one or more stake holes; 2) rapidly solidified for described subgrade device is put into stake holes; 3) by vacuumizing hole, header being vacuumized with vacuum pump, making water in soft subgrade soil enter header by the fillter section of header lower end under pressure; 4) use submersible pump to extract the water entered in header, water is discharged to the external world by gutter upper end; 5) when the water level in header is higher than specific high threshold, stop described vacuum pump, when the water level in header is reduced to specific Low threshold from specific high threshold, restart vacuum pump; 6) prescribe a time limit when the water level in header reaches under warning line, submersible pump and vacuum pump quit work automatically, and construction terminates.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of one embodiment of the invention;
Accompanying drawing 2 is structural representations of another embodiment of the present invention.
Detailed description of the invention
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, and below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
See Fig. 1, an embodiment of the rapidly solidified device of subgrade of the present invention, comprise header 1 and the filter being arranged at header 1, described filter comprises the inlet opening 8 on header fillter section tube wall, be arranged on put more energy into muscle 9 and the geotextiles 7 be wrapped in outside muscle 9 of putting more energy into outside fillter section tube wall, the gutter 3 that an external diameter is less than header 1 internal diameter is provided with in described header 1, the upper end mouth of pipe of header 1 is provided with the nozzle device 2 for sealing header, the upper end mouth of pipe of gutter 3 connects this nozzle device 2, nozzle device 2 and the header 1 upper end mouth of pipe are provided with sealing flange, sealing flange inside is provided with seal washer 6, the lower end mouth of pipe of gutter 3 is connected with submersible pump 4, header 1 is provided with can by the vacuum hole 22 that vacuumizes in header 1 and the unidirectional hole 21 with extraneous one-way conduction, the inner in unidirectional hole 21
23be connected with gutter 3, outer end 24 is connected with one way valve, and vacuum hole 22 is connected with vacuum pump, and header lower end 12 is level cross-sectionn diminishing shape from top to bottom, and described submersible pump 4 is positioned at described header lower end 12.By the technical scheme in the present embodiment, due to the shape that header lower end 12 reduces gradually for horizontal cross-sectional area, compared with the technical scheme different with cross section in prior art, when making to enter same water in inlet opening, the horizontal plane of header lower end is higher, thus when draining latter stage, water inlet was less, water level also can be kept in header higher than the out-of-work warning line upper limit, thus makes draining more thorough.
See Fig. 2, another embodiment of the rapidly solidified device of ground of the present invention, comprise header 1 and the filter being arranged at header 1, described filter comprises the inlet opening 8 on header fillter section tube wall, be arranged on put more energy into muscle 9 and the geotextiles 7 be wrapped in outside muscle 9 of putting more energy into outside fillter section tube wall, the gutter 3 that an external diameter is less than header 1 internal diameter is provided with in described header 1, the upper end mouth of pipe of header 1 is provided with the nozzle device 2 for sealing header, the upper end mouth of pipe of gutter 3 connects this nozzle device 2, nozzle device 2 and the header 1 upper end mouth of pipe are provided with sealing flange, sealing flange inside is provided with seal washer 6, the lower end mouth of pipe of gutter 3 is connected with submersible pump 4, header 1 is provided with can by the vacuum hole 22 that vacuumizes in header 1 and the unidirectional hole 21 with extraneous one-way conduction, the inner in unidirectional hole 21
23be connected with gutter 3, outer end 24 is connected with one way valve, and vacuum hole 22 is connected with vacuum pump, and header lower end 12 is level cross-sectionn diminishing shape from top to bottom, and described submersible pump 4 is positioned at described header lower end 12.Wherein, inlet opening 8 comprises the water inlet being positioned at header fillter section tube wall lower end 12 and the water inlet being positioned at header fillter section tube wall upper end 11, the water inlet being positioned at header fillter section tube wall lower end 12 is the hole not arranging closure elements, and the water inlet being positioned at header fillter section tube wall upper end 11 is the hole arranging closure elements.Described closure elements, when the water level of header is higher than specific water level, closes the described hole arranging closure elements.Closure elements can use the seal cover of band flexible member, when the water level of header is higher than specific water level, due to the suction of vacuum pump, seal cover is opened, the described hole arranging closure elements is opened, when the water level in header is higher than specific water level, due to the screen resilience of hydraulic pressure and flexible member itself, seal cover is closed.By the technical scheme in the present embodiment, when making water level in header higher than specific water level, enclosure portion water inlet, slow down the flow entering water in header, thus avoid at the draining initial stage, in soft base, water content is higher, and the water yield entering header is greater than submersible pump displacement, makes water level in header rise fast and be inhaled into vacuum pump.
Preferably, in above-described embodiment, the level measurement device 25 in nozzle device can be arranged on, level measurement device 25 is measured for the water level of header 1, when the water level in header 1 is higher than specific high threshold, stop the operation of vacuum pump, when the water level in header is reduced to specific Low threshold from specific high threshold, restart vacuum pump.Preferably, level measurement device 25 is sonac, by the timing to water level reflectance ultrasound echo, and determines the water level in header.
As another one part of the present invention, provide the construction method of the rapidly solidified device of above-mentioned subgrade, it comprises the steps: 1) in soft base, become one or more stake holes; 2) rapidly solidified for described subgrade device is put into stake holes; 3) by vacuumizing hole, header being vacuumized with vacuum pump, making water in soft subgrade soil enter header by the fillter section of header lower end under pressure; 4) use submersible pump to extract the water entered in header, water is discharged to the external world by gutter upper end; 5) when the water level in header is higher than specific high threshold, stop described vacuum pump, when the water level in header is reduced to specific Low threshold from specific high threshold, restart vacuum pump; 6) prescribe a time limit when the water level in header reaches under warning line, submersible pump and vacuum pump quit work automatically, and construction terminates.
Below be only the preferred embodiment of the present invention, protection scope of the present invention be not only confined to above-described embodiment, all technical schemes belonged under thinking of the present invention all belong to protection scope of the present invention.For those skilled in the art, some improvements and modifications without departing from the principles of the present invention, should be considered as falling into protection scope of the present invention.
Claims (2)
1. the rapidly solidified device of subgrade, comprise header and the filter being arranged at header, described filter comprises the inlet opening on header fillter section tube wall, be arranged on put more energy into muscle and the geotextiles be wrapped in outside muscle of putting more energy into outside fillter section tube wall, it is characterized in that: described inlet opening comprises the water inlet being positioned at header fillter section tube wall lower end and the water inlet being positioned at header fillter section tube wall upper end, the described water inlet being positioned at header fillter section tube wall lower end is the hole not arranging closure elements, the described water inlet being positioned at header fillter section tube wall upper end is the hole arranging closure elements.
2. the rapidly solidified device of subgrade according to claim 1, it is characterized in that: described closure elements is the seal cover of band flexible member, when the water level of header is higher than described specific water level, due to the suction of vacuum pump, seal cover is opened, and the described hole arranging closure elements is opened, when the water level in header is higher than described specific water level, due to the screen resilience of hydraulic pressure and flexible member itself, seal cover is closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510773799.2A CN105442524B (en) | 2015-01-02 | 2015-01-02 | Soft foundation processing device and construction method |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510773799.2A CN105442524B (en) | 2015-01-02 | 2015-01-02 | Soft foundation processing device and construction method |
| CN201510000120.6A CN104532825B (en) | 2015-01-02 | 2015-01-02 | A kind of rapidly solidified device of subgrade and construction method thereof |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510000120.6A Division CN104532825B (en) | 2015-01-02 | 2015-01-02 | A kind of rapidly solidified device of subgrade and construction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105442524A true CN105442524A (en) | 2016-03-30 |
| CN105442524B CN105442524B (en) | 2017-10-10 |
Family
ID=52848433
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510000120.6A Active CN104532825B (en) | 2015-01-02 | 2015-01-02 | A kind of rapidly solidified device of subgrade and construction method thereof |
| CN201510773799.2A Expired - Fee Related CN105442524B (en) | 2015-01-02 | 2015-01-02 | Soft foundation processing device and construction method |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510000120.6A Active CN104532825B (en) | 2015-01-02 | 2015-01-02 | A kind of rapidly solidified device of subgrade and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN104532825B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107938645A (en) * | 2017-12-18 | 2018-04-20 | 成都隶盈科技有限公司 | A kind of vacuum preconsolidation drainage and construction method |
| CN108931332A (en) * | 2018-06-29 | 2018-12-04 | 中国二十冶集团有限公司 | The detection method of peat soil soft soil foundation hydraulic pressure |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104849771B (en) * | 2015-05-23 | 2017-07-14 | 河南省水利勘测有限公司 | The exploration device and exploitation method of layer of ground soil in Geotechnical Engineering |
| CN106638554B (en) * | 2017-01-05 | 2019-08-06 | 浙江大学宁波理工学院 | The processing method of Soft Clay Foundation |
| CN107806083B (en) * | 2017-09-22 | 2024-05-14 | 广州市盛洲地基基础工程有限公司 | Soft soil foundation reinforcement treatment water collection strong drainage device |
| CN107938646B (en) * | 2017-12-28 | 2023-09-01 | 中交天航港湾建设工程有限公司 | Film outlet connecting device for vacuum pump and vacuum film drainage pipeline |
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| JPH0411111A (en) * | 1990-04-27 | 1992-01-16 | Taisei Corp | Ground improvement process |
| CN1952272A (en) * | 2006-11-16 | 2007-04-25 | 上海隧道工程股份有限公司 | Precipitation construction method for double-bushing vacuum deep well point |
| JP2010189961A (en) * | 2009-02-19 | 2010-09-02 | Takenaka Komuten Co Ltd | Air injection device, air injection system, and air injection method into ground |
| CN102425152A (en) * | 2011-09-02 | 2012-04-25 | 广东水电二局股份有限公司 | Device for rapidly consolidating soft foundation and construction method |
| CN102966090A (en) * | 2012-12-14 | 2013-03-13 | 北京科技大学 | System for automatically draining water on side slope and method therefor |
| CN203947462U (en) * | 2014-05-30 | 2014-11-19 | 上海市水利工程设计研究院有限公司 | A kind of retaining wall outfall backward flowing preventing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3776831B2 (en) * | 2001-08-27 | 2006-05-17 | 和彦 坂本 | Groundwater level lowering device |
| CN101666083A (en) * | 2009-08-13 | 2010-03-10 | 林佳栋 | Soft soil foundation treatment reinforcement method and device thereof |
| CN202247855U (en) * | 2011-09-02 | 2012-05-30 | 广东水电二局股份有限公司 | Device for rapidly solidifying soft foundation |
| CN203613528U (en) * | 2013-12-18 | 2014-05-28 | 中铁二十局集团第四工程有限公司 | Vacuum and surcharge combined preloading drainage consolidation structure of soft soil foundation |
| CN104005402B (en) * | 2014-06-12 | 2016-01-20 | 天津大学 | A kind of vacuum preconsolidation drainage and construction method |
-
2015
- 2015-01-02 CN CN201510000120.6A patent/CN104532825B/en active Active
- 2015-01-02 CN CN201510773799.2A patent/CN105442524B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0411111A (en) * | 1990-04-27 | 1992-01-16 | Taisei Corp | Ground improvement process |
| CN1952272A (en) * | 2006-11-16 | 2007-04-25 | 上海隧道工程股份有限公司 | Precipitation construction method for double-bushing vacuum deep well point |
| JP2010189961A (en) * | 2009-02-19 | 2010-09-02 | Takenaka Komuten Co Ltd | Air injection device, air injection system, and air injection method into ground |
| CN102425152A (en) * | 2011-09-02 | 2012-04-25 | 广东水电二局股份有限公司 | Device for rapidly consolidating soft foundation and construction method |
| CN102966090A (en) * | 2012-12-14 | 2013-03-13 | 北京科技大学 | System for automatically draining water on side slope and method therefor |
| CN203947462U (en) * | 2014-05-30 | 2014-11-19 | 上海市水利工程设计研究院有限公司 | A kind of retaining wall outfall backward flowing preventing device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107938645A (en) * | 2017-12-18 | 2018-04-20 | 成都隶盈科技有限公司 | A kind of vacuum preconsolidation drainage and construction method |
| CN107938645B (en) * | 2017-12-18 | 2019-12-03 | 上海三航奔腾海洋工程有限公司 | A kind of vacuum preconsolidation drainage and construction method |
| CN108931332A (en) * | 2018-06-29 | 2018-12-04 | 中国二十冶集团有限公司 | The detection method of peat soil soft soil foundation hydraulic pressure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104532825B (en) | 2016-04-27 |
| CN104532825A (en) | 2015-04-22 |
| CN105442524B (en) | 2017-10-10 |
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| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Yuanyuan Inventor after: Guo Bin Inventor after: Liu Jiang Inventor after: Chen Peng Inventor after: Jia Shibo Inventor before: Han Shaopeng |
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170821 Address after: 273400 No.1 East Outer Ring Road, Feixian County, Linyi City, Shandong Province, China. Qingdao University of Technology (Linyi) Applicant after: Qingdao University of Technology(Linyi) Address before: 054000 Xingtai Province, Gao Qiao Road, No. 79, Hebei Applicant before: Han Shaopeng |
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Granted publication date: 20171010 Termination date: 20190102 |