CN105442524B - Soft foundation processing device and construction method - Google Patents
Soft foundation processing device and construction method Download PDFInfo
- Publication number
- CN105442524B CN105442524B CN201510773799.2A CN201510773799A CN105442524B CN 105442524 B CN105442524 B CN 105442524B CN 201510773799 A CN201510773799 A CN 201510773799A CN 105442524 B CN105442524 B CN 105442524B
- Authority
- CN
- China
- Prior art keywords
- collector pipe
- pipe
- water level
- fillter section
- water
- 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.)
- Expired - Fee Related
Links
- 238000010276 construction Methods 0.000 title claims description 11
- 238000012545 processing Methods 0.000 title description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 83
- 210000003205 muscle Anatomy 0.000 claims abstract description 10
- 239000004746 geotextile Substances 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 9
- 239000002689 soil Substances 0.000 claims description 9
- 230000003467 diminishing effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 description 7
- 238000005259 measurement Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical group OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000007596 consolidation process Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000009189 diving Effects 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
- 238000001914 filtration Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000001556 precipitation Methods 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
- 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
A kind of rapidly solidified device of subgrade, including collector pipe and the filter for being arranged at collector pipe, the filter includes the inlet opening on collector pipe fillter section tube wall, it is arranged on put more energy into muscle and the geotextiles being wrapped in outside muscle of putting more energy on the outside of fillter section tube wall, the inlet opening includes the water inlet and the water inlet positioned at collector pipe fillter section tube wall upper end positioned at collector pipe fillter section tube wall lower end, the water inlet positioned at collector pipe fillter section tube wall lower end is the hole for being not provided with closure elements, the water inlet positioned at collector pipe fillter section tube wall upper end is the hole for setting closure elements.
Description
Technical field
It is rapidly solidified more particularly, to a kind of subgrade the invention belongs to Soft Soil Subgrade Treatment Techniques field in architectural engineering
Device.
Background technology
Soft soil foundation is a kind of special foundation for referring to the higher soft layer formation of low intensity, decrement, typically has and holds
The features such as power is low, water content is high, soft soil layer is deep is carried, thus has to pass through basement process rear and be can be used.As China is existing
The quickening of generationization process, during (coastal) urban construction, substantial amounts of soft soil foundation needs processing
The conventional processing method of current weak soil mainly has vacuum method, preloading, Vacuum-loading Pre-pressing Method,
Three kinds of methods are to use static(al) draining concretion method, it is necessary to wait mud face to solidify or first lay GSZ, geotextiles, then
Fill out more than 0.8m sand bedding courses, after there is some strength after mud top layer, artificial and plant equipment could after progress thereon road work
Sequence is constructed, and causes the required duration longer, place intensity is not high.On the other hand, when place in order that dredging mud is in 80kPa
Negative pressure of vacuum will spend the longer pumpdown time when being issued to enough consolidation indexs, and be used as the modeling of vertical drainage system
Material drain bar makes effective pumpdown time fall sharply the serious smear effect of drain bar because of the dredging mud that ultra-fine soil particle is constituted,
This conflict will unavoidably occur, so as to have a strong impact on the consolidation effect of vacuum method.
In the prior art for rapidly solidified soft base, such as 201110258093.4, use cuff immersible pump in collector pipe
Drain pipe system, collector pipe and drainpipe formation dual pipe, in the presence of vavuum pump so that work of the soft base in atmospheric pressure
Moisture and enter collector pipe with lower rapid precipitation, quickly excluded by immersible pump and drainpipe, reach the effect of rapidly solidified soft base
Really.But the rapidly solidified device of soft base of the prior art has the disadvantage that：1st, at draining initial stage, in soft base water content compared with
Height, the water into collector pipe is more than diving pump displacement, makes water level rapid increase in collector pipe, may be inhaled into vavuum pump,
Influence the vacuum efficiency of pump, in some instances it may even be possible to damage vavuum pump；2nd, in the draining latter end time, because water content is reduced in soft base, enter
Collector pipe is slower, the water level in collector pipe is increased slow, the water level in collector pipe is reached below warning line, so that immersible pump
It is stopped, but residual water is not drained also completely in soft base.
The content of the invention
The invention provides a kind of rapidly solidified device of subgrade and its construction method, the residual water in soft base can be use up
It may discharge more, and with not interfering with vavuum pump performance.
As one aspect of the present invention there is provided a kind of rapidly solidified device of subgrade, including collector pipe and it is arranged at
The filter of collector pipe, the filter include collector pipe fillter section tube wall on inlet opening, be arranged on fillter section tube wall
It is less than the bore that catchments provided with an external diameter in put more energy into muscle and the geotextiles being wrapped in outside muscle of putting more energy into outside, the collector pipe
Drainpipe, the upper end mouth of pipe of the collector pipe is provided with the nozzle device for being used for sealing collector pipe, the upper end mouth of pipe of the drainpipe
The nozzle device is connected, the lower end mouth of pipe of the drainpipe is connected with immersible pump, and the collector pipe is provided with can be by collector pipe
The vacuum hole vacuumized and the unidirectional hole with extraneous one-way conduction, the vacuum hole are connected with vavuum pump, the collector pipe lower end
For level cross-sectionn diminishing shape from top to bottom, the immersible pump is located at the collector pipe lower end.
Preferably, the inlet opening is included positioned at the water inlet of collector pipe fillter section tube wall lower end and positioned at collector pipe filtering
The water inlet of Duan Guanbi upper ends, the water inlet positioned at collector pipe fillter section tube wall lower end is the hole for being not provided with closure elements,
The water inlet positioned at collector pipe fillter section tube wall upper end is the hole for setting closure elements.
Preferably, the closure elements close the setting closure elements when the water level of collector pipe is higher than specific water level
Hole.
Preferably, the closure elements are the closure with flexible member, when the water level of collector pipe is less than specific water level,
Due to the suction of vavuum pump so that closure is opened, the hole for setting closure elements is opened, when the water level in collector pipe is higher than
During specific water level, due to the screen resilience of hydraulic pressure and flexible member in itself so that closure is closed.
Preferably, the rapidly solidified device of the subgrade also includes the level measurement device being arranged in nozzle device, described
Level measurement device is measured for the water level of collector pipe, when the water level in collector pipe is higher than specific high threshold, stops institute
Vavuum pump is stated, when the water level in collector pipe is reduced to specific Low threshold from specific high threshold, vavuum pump is restarted.It is preferred that
Ground, the level measurement device is sonac, by the timing to water level reflectance ultrasound echo, and determines collector pipe
In water level.
As another invention of the present invention there is provided the construction method of the rapidly solidified device of above-mentioned subgrade, it is wrapped
Include following steps：1）Into one or more stake holes in soft base；2）The rapidly solidified device of the subgrade is put into stake holes；3）
Collector pipe is vacuumized by vacuumizing hole with vavuum pump, makes soft subgrade soil reclaimed water under pressure by the mistake of collector pipe lower end
Filter section enters collector pipe；4）The water entered in collector pipe is extracted using immersible pump, water is discharged to by drainpipe upper end
It is extraneous；5）When the water level in collector pipe is higher than specific high threshold, stop the vavuum pump, when the water level in collector pipe is from specific
When high threshold is reduced to specific Low threshold, vavuum pump is restarted；6）When the water level in collector pipe reaches warning line lower limit,
Immersible pump and vavuum pump are automatically stopped work, and construction terminates.
Brief description of the drawings
Accompanying drawing 1 is the structural representation of one embodiment of the invention；
Accompanying drawing 2 is the structural representation of another embodiment of the present invention.
Embodiment
In order to facilitate the understanding of the purposes, features and advantages of the present invention, it is below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is further detailed explanation.
Referring to Fig. 1, one embodiment of the rapidly solidified device of subgrade of the invention, including collector pipe 1 and collection is arranged at
The filter of water pipe 1, the filter include collector pipe fillter section tube wall on inlet opening 8, be arranged on fillter section tube wall
It is less than collector pipe 1 provided with an external diameter in put more energy into muscle 9 and the geotextiles 7 for being wrapped in the outside of muscle 9 of putting more energy into outside, the collector pipe 1
The drainpipe 3 of internal diameter, the upper end mouth of pipe of collector pipe 1 is provided with the nozzle device 2 for being used for sealing collector pipe, the upper pipes of drainpipe 3
Mouth connects the nozzle device 2, and nozzle device 2 is provided with inside sealing flange, sealing flange with the upper end mouth of pipe of collector pipe 1 and is provided with sealing
Packing ring 6, the lower end mouth of pipe of drainpipe 3 is connected with immersible pump 4, and collector pipe 1 is provided with the vacuum hole that will can be vacuumized in collector pipe 1
22 and the unidirectional hole 21 with extraneous one-way conduction, the inner 23 in unidirectional hole 21 is connected with drainpipe 3, and outer end 24 connects with check valve
Connect, vacuum hole 22 is connected with vavuum pump, collector pipe lower end 12 is level cross-sectionn diminishing shape from top to bottom, described latent
Water pump 4 is located at the collector pipe lower end 12.By the technical scheme in the present embodiment, because collector pipe lower end 12 is horizontal cross-section
The shape that face area is gradually reduced, compared with the different technical scheme in cross section in the prior art so that enter same in inlet opening
During the water of sample, the horizontal plane of collector pipe lower end is higher, so as to when draining latter stage, water inlet was less, can also keep water in collector pipe
Position is higher than the warning line upper limit being stopped, so that draining is more thorough.
Referring to Fig. 2, another one embodiment of the rapidly solidified device of ground of the invention, including collector pipe 1 and setting
In the filter of collector pipe 1, the filter includes inlet opening 8 on collector pipe fillter section tube wall, is arranged on fillter section
It is less than in put more energy into muscle 9 and the geotextiles 7 for being wrapped in the outside of muscle 9 of putting more energy on the outside of tube wall, the collector pipe 1 provided with an external diameter and catchments
The drainpipe 3 of the internal diameter of pipe 1, the upper end mouth of pipe of collector pipe 1 is provided with the nozzle device 2 for being used for sealing collector pipe, the upper end of drainpipe 3
The mouth of pipe connects the nozzle device 2, and nozzle device 2 is provided with inside sealing flange, sealing flange provided with close with the upper end mouth of pipe of collector pipe 1
Seal washer 6, the lower end mouth of pipe of drainpipe 3 is connected with immersible pump 4, and collector pipe 1 is provided with the vacuum that will can be vacuumized in collector pipe 1
Hole 22 and the unidirectional hole 21 with extraneous one-way conduction, the inner 23 in unidirectional hole 21 are connected with drainpipe 3, and outer end 24 connects with check valve
Connect, vacuum hole 22 is connected with vavuum pump, collector pipe lower end 12 is level cross-sectionn diminishing shape from top to bottom, described latent
Water pump 4 is located at the collector pipe lower end 12.Wherein, inlet opening 8 includes the water inlet positioned at collector pipe fillter section tube wall lower end 12
With the water inlet positioned at collector pipe fillter section tube wall upper end 11, the water inlet positioned at collector pipe fillter section tube wall lower end 12 is not set
The hole of closure elements is put, the water inlet positioned at collector pipe fillter section tube wall upper end 11 is the hole for setting closure elements.The closing
Element closes the hole of the setting closure elements when the water level of collector pipe is higher than specific water level.Closure elements can use band
The closure of flexible member, when the water level of collector pipe is less than specific water level, due to the suction of vavuum pump so that closure is beaten
Open, the hole for setting closure elements is opened, when the water level in collector pipe is higher than specific water level, due to hydraulic pressure and elasticity member
The screen resilience of part in itself so that closure is closed.By the technical scheme in the present embodiment, make the water level in collector pipe higher than spy
When determining water level, enclosure portion water inlet slows down the flow into collector pipe reclaimed water, so as to avoid at draining initial stage, soft base is included
Water is higher, and the water into collector pipe is more than diving pump displacement, makes water level rapid increase in collector pipe and is inhaled into vacuum
Pump.
It is preferred that, in above-described embodiment, the level measurement device 25 in nozzle device, level measurement device can be arranged on
25 measure for the water level of collector pipe 1, when the water level in collector pipe 1 is higher than specific high threshold, stop the fortune of vavuum pump
OK, when the water level in collector pipe is reduced to specific Low threshold from specific high threshold, vavuum pump is restarted.It is preferred that, water level
Measurement apparatus 25 is sonac, by the timing to water level reflectance ultrasound echo, and determines the water level in collector pipe.
As another part of the present invention there is provided the construction method of the rapidly solidified device of above-mentioned subgrade, it is wrapped
Include following steps：1）Into one or more stake holes in soft base；2）The rapidly solidified device of the subgrade is put into stake holes；3）
Collector pipe is vacuumized by vacuumizing hole with vavuum pump, makes soft subgrade soil reclaimed water under pressure by the mistake of collector pipe lower end
Filter section enters collector pipe；4）The water entered in collector pipe is extracted using immersible pump, water is discharged to by drainpipe upper end
It is extraneous；5）When the water level in collector pipe is higher than specific high threshold, stop the vavuum pump, when the water level in collector pipe is from specific
When high threshold is reduced to specific Low threshold, vavuum pump is restarted；6）When the water level in collector pipe reaches warning line lower limit,
Immersible pump and vavuum pump are automatically stopped work, and construction terminates.
It the above is only the preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-described embodiment,
All technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.For the ordinary skill people of the art
For member, some improvements and modifications without departing from the principles of the present invention should be regarded as falling into protection scope of the present invention.
Claims (3)
1. a kind of rapidly solidified device of subgrade, including collector pipe and the filter for being arranged at collector pipe, the filter
Put more energy into including the inlet opening on collector pipe fillter section tube wall, the muscle and being wrapped in of putting more energy into being arranged on the outside of fillter section tube wall outside muscle
Geotextiles, be less than the drainpipe for the bore that catchments in the collector pipe provided with an external diameter, the upper end mouth of pipe of the collector pipe is set
There is the nozzle device for sealing collector pipe, the upper end mouth of pipe of the drainpipe is connected under the nozzle device, the drainpipe
End pipe mouth is connected with immersible pump, the collector pipe provided with can by the vacuum hole vacuumized in collector pipe and with extraneous one-way conduction
Unidirectional hole, the vacuum hole is connected with vavuum pump, it is characterised in that：The collector pipe lower end be level cross-sectionn from top to bottom
Diminishing shape, the immersible pump is located at the collector pipe lower end；The inlet opening includes being located at collector pipe fillter section pipe
The water inlet of wall lower end and the water inlet positioned at collector pipe fillter section tube wall upper end, it is described to be located at collector pipe fillter section tube wall lower end
Water inlet be the hole for being not provided with closure elements, the water inlet positioned at collector pipe fillter section tube wall upper end for set closing member
The hole of part；The closure elements are the closure with flexible member, when the water level of collector pipe is less than specific water level, due to vacuum
The suction of pump so that closure is opened, the hole for setting closure elements is opened, when the water level in collector pipe is higher than described specific
During water level, due to the screen resilience of hydraulic pressure and flexible member in itself so that closure is closed.
2. a kind of construction method of the rapidly solidified device of subgrade described in claim 1：Comprise the following steps 1）In soft base
Into one or more stake holes；2）The rapidly solidified device of the subgrade is put into stake holes；3）With vavuum pump by vacuumizing hole
Collector pipe is vacuumized, soft subgrade soil reclaimed water is entered collector pipe by the fillter section of collector pipe lower end under pressure；4）Make
The water entered in collector pipe is extracted with immersible pump, water is discharged to the external world by drainpipe upper end；5）When in collector pipe
When water level is higher than specific high threshold, stop the vavuum pump, when the water level in collector pipe be reduced to from specific high threshold it is specific low
During threshold value, vavuum pump is restarted.
3. construction method according to claim 2, it is characterised in that：Including step 6）：When the water level in collector pipe reaches
During warning line lower limit, immersible pump and vavuum pump are automatically stopped work, and construction terminates.
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 CN105442524A (en) | 2016-03-30 |
| CN105442524B true CN105442524B (en) | 2017-10-10 |
Family
ID=52848433
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510773799.2A Expired - Fee Related CN105442524B (en) | 2015-01-02 | 2015-01-02 | Soft foundation processing device and construction method |
| CN201510000120.6A Active CN104532825B (en) | 2015-01-02 | 2015-01-02 | A kind of rapidly solidified device of subgrade and construction method thereof |
Family Applications After (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 |
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| CN (2) | CN105442524B (en) |
Families Citing this family (6)
| 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 |
| 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 |
| 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 |
| 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 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0411111A (en) * | 1990-04-27 | 1992-01-16 | Taisei Corp | Ground improvement process |
| JP3776831B2 (en) * | 2001-08-27 | 2006-05-17 | 和彦 坂本 | Groundwater level lowering device |
| CN100491650C (en) * | 2006-11-16 | 2009-05-27 | 上海隧道工程股份有限公司 | Precipitation construction method for double-bushing vacuum deep well point |
| JP5132605B2 (en) * | 2009-02-19 | 2013-01-30 | 株式会社竹中工務店 | Air injecting device, air injecting system, and method for injecting air into ground |
| CN101666083A (en) * | 2009-08-13 | 2010-03-10 | 林佳栋 | Soft soil foundation treatment reinforcement method and device thereof |
| CN102425152B (en) * | 2011-09-02 | 2014-04-02 | 广东水电二局股份有限公司 | Device for rapidly consolidating soft foundation and construction method |
| 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 |
| CN102966090B (en) * | 2012-12-14 | 2014-07-02 | 北京科技大学 | System for automatically draining water on side slope and method therefor |
| 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 |
| 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 |
| 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 CN201510773799.2A patent/CN105442524B/en not_active Expired - Fee Related
- 2015-01-02 CN CN201510000120.6A patent/CN104532825B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104532825A (en) | 2015-04-22 |
| CN105442524A (en) | 2016-03-30 |
| CN104532825B (en) | 2016-04-27 |
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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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