CN101229951A - Bottom soft vacuum method for pumping surface water of sullage yard - Google Patents
Bottom soft vacuum method for pumping surface water of sullage yard Download PDFInfo
- Publication number
- CN101229951A CN101229951A CNA200810020711XA CN200810020711A CN101229951A CN 101229951 A CN101229951 A CN 101229951A CN A200810020711X A CNA200810020711X A CN A200810020711XA CN 200810020711 A CN200810020711 A CN 200810020711A CN 101229951 A CN101229951 A CN 101229951A
- Authority
- CN
- China
- Prior art keywords
- horizontal
- drainage
- mud
- vacuum
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000002352 surface water Substances 0.000 title claims abstract description 12
- 238000005086 pumping Methods 0.000 title description 8
- 239000010797 grey water Substances 0.000 title description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000004576 sand Substances 0.000 claims description 31
- 239000000284 extract Substances 0.000 claims 2
- 238000010276 construction Methods 0.000 abstract description 5
- 238000012545 processing Methods 0.000 abstract description 3
- 238000009423 ventilation Methods 0.000 abstract 2
- 238000001556 precipitation Methods 0.000 description 7
- 239000010802 sludge Substances 0.000 description 6
- 238000013461 design Methods 0.000 description 4
- 238000013459 approach Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- 239000003657 drainage water Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000003913 materials processing Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000001226 reprecipitation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Abstract
The invention relates to a method for extracting surface water on a silt yard with low vacuum at the bottom, which is a method for carrying out rapid water extracting processing on the surface of a dredged silt yard with low concentration generated in the construction of water conservancy and port fairway project. A drainage system of horizontal sandbags (2) and a vertical drainage plate (3) are arranged at a bottom of a cofferdam (1), which are connected with a vacuum device (6) to form a drainage system in a bottom space of the cofferdam, wherein, the horizontal sandbags (2) are connected with the vertical drainage plate (3); a first horizontal longitudinal drainage pipe (8) and a second horizontal longitudinal drainage pipe (10) are respectively connected with the horizontal sandbags (2); the vacuum device (6) is connected with the first horizontal longitudinal drainage pipe (8) through an aqueduct (9); a ventilation device (7) is connected with the second horizontal longitudinal drainage pipe (10) through a windpipe (11). According to water content in the silt, the ventilation device is used for keeping the vacuum degree inside the drainage system at a low level, thus guaranteeing the smoothness of a drainage channel of the drainage system.
Description
Technical field
The present invention a kind ofly carries out the surface processing of drawing water fast to the lower concentration dredging silt stockyard that produces in water conservancy, the harbor approach engineering construction, basically eliminate precipitation underkell clearance and stormy waves influence, increase considerably mud stockyard volumetrical method, thereby reach the purpose that reduces mud stockyard floor space.Be applicable to lower concentration dredging silt big area stockyard disposal engineering, belong to the technical field of water conservancy and harbor approach engineering.
Background technology
In river course, the waterway dredging of China with widen and the harbour is newly-built, in the extension project, often adopt mode such as strand suction to dredge and add the relay pump dispatch to the mud stockyard, the mud water content is very high, and mud concentration is low.The a large amount of discarded dredging silt that produces in landlocked river course is often thrown and is filled in land, need a large amount of soil of requisition, as the spoir of south water to north east line Jiangsu Section first phase engineering required cover an area of 22009.2 mu, mud is deposited stockyard expropriation of land, rent and has been accounted for about 60% of total engineering cost, becomes the principal element of control engineering cost.The useful volume, the minimizing floor space that how to improve the mud stockyard are pressing for of water conservancy, harbor approach engineering.
Since lower concentration mud in the stockyard from reprecipitation, the mud-water separation that certainly leads to nature, need consider to precipitate underkell clearance and stormy waves superelevation when designing in the stockyard, in " dredging engineering technical specifications " (JTJ 319-99) of " dredging engineering construction technique normalizing " (SL 17-90) and The Ministry of Communications of the People's Republic of China, MOC of Ministry of Water Resources of the People's Republic of China's nineteen ninety issue issue in 1999, all clearly stipulate, design land when depositing the capacity in mud district, needing increases precipitation underkell clearance 0.5m and stormy waves superelevation 0.5m, and land mud total height of depositing the mud district generally is no more than 4.0m.This shows that precipitation underkell clearance and stormy waves superelevation have very big influence to the capacity in lower concentration mud stockyard.
In engineering practice, fixed in order to impel the dredging silt top layer to accelerate, take to excavate the surface water that the mud stockyard is discharged in measures such as waterways, input plastics french drain as early as possible sometimes.In addition, through existing technical literature retrieval is also found, Sihang Engineering Tech. Research Inst., Guangzhou has proposed the utility model patent (patent No.: ZL 200520065698.1) of " the pump drainage water system of the quick reinforcing on the shallow top layer of blowing-filling sludge ", this utility model is by laying drainage channel on the mud top layer, drainage channel is connected with pumping equipment, and it is fixed to impel the mud shallow-layer to quicken by vacuum pump or lift pump.Should be noted that, above experience measure or patent all are to finish the back at the mud hydraulic reclamation to implement at muck surface or top layer, but large-area lower concentration dredging silt surface strength is very low, personnel and machinery often are difficult to safety and enter the construction of mud stockyard, draw water and often run into drainage channel silting problem in this external mud top layer, precipitation along with mud, because the influence on border, cofferdam, the protruding shape of recessed periphery in the middle of the mud stockyard also can form, be unfavorable for excavating the waterways draining, so aforesaid method is difficult to carry out in engineering practice.
At above problem, the present invention proposes to set up the space drainage system in advance, utilize rough vacuum and air permeation device in time to extract the technology of muck surface water in bottom, mud stockyard.
Summary of the invention
Technical problem: the objective of the invention is, need to consider the influence of precipitation underkell clearance and stormy waves at the design of big area lower concentration dredging silt stockyard, a kind of space drainage system that sets up in advance bottom the mud stockyard is proposed, utilize rough vacuum and air permeation device to extract the bottom soft vacuum method for pumping surface water of sullage yard of muck surface water, behind mud dredge fill phase and hydraulic reclamation, in time take out the surface water in mud stockyard, to reach fully or to eliminate significantly the influence of precipitation underkell clearance and stormy waves, increase considerably mud stockyard volumetrical purpose.
Technical scheme: the present invention is whole to be made up of horizontal drainage system, vertical drainage plate and pumping system, and construction technology is simple, and is with low cost.The solution of the present invention is as follows:
Set up horizontal sand pocket drainage system is connected with the vertical drainage plate and with vacuum extractor and forms cofferdam bottom space drainage system in cofferdam bottom; Wherein, horizontal sand pocket links to each other with the vertical drainage plate, the first horizontal longitudinal drainage pipeline, the second horizontal longitudinal drainage pipeline link to each other with horizontal sand pocket respectively, vacuum extractor links to each other with the first horizontal longitudinal drainage pipeline by aqueduct, and air permeation device links to each other with the second horizontal longitudinal drainage pipeline by airway; According to the water content of mud, utilize air permeation device to make the vacuum tightness in the water exhaust system be in lower level, thereby drainage channel is unimpeded in the assurance water exhaust system.The centre of horizontal sand pocket is provided with filter pipe, and two ends are connected with pvc pipe by nut respectively, and the centre of drain board is provided with mao bamboon, and drain board and horizontal sand pocket are fixed by thin wire.
Inner bottom part sets up horizontal sand pocket in cofferdam, mud stockyard, sand pocket is arranged along the width in stockyard, with materials such as mao bamboons drain board is fixed in vertical direction, and be connected with sand pocket, the drain board that sets up in advance requires to exceed about yard sludge design height 10cm, two ends at horizontal sand pocket are connected with pvc pipe respectively, and respectively be laid in the cofferdam on vacuum extractor be connected with air permeation device.The spacing distance between the sand pocket and the spacing of drain board are decided according to actual engine request.Utilizing vacuum extractor to apply negative pressure of vacuum draws water, utilize the valve opening degree of air permeation device to regulate negative pressure of vacuum value and air-flow in the sand pocket drainage system in the stockyard, cofferdam according to the mud water content, prevent the pump process generation silting of high-moisture dredging silt, guarantee the unobstructed of pump process drainage channel.
In the dredging silt stockyard, set up in advance after the drainage system described above, in the hydraulic reclamation process of dredging silt,, make that the vacuum tightness in the water exhaust system is in lower level by regulating the open degree of air permeation device valve.Under the negative pressure of vacuum effect, can produce air-flow in the draining sand pocket, it is inner and surperficial that air-flow acts on the draining sandbag, prevents because forming waterproof mud rete causes the silting problem on every side with the fine particle suction drain system in the mud or at drainage channel in the negative pressure of vacuum water absorption course.Under the air-flow effect in rough vacuum and draining sand pocket, the moisture that the bottom rough vacuum method that the present invention proposes produces surface, mud stockyard muddy water natural separation by the vertical drainage plate that is connected with horizontal sand pocket is finished between the later stage at mud dredge fill phase and hydraulic reclamation and is in time taken out, and guarantees that substantially the lower concentration muck surface does not have rich water existence.
Beneficial effect: beneficial effect of the present invention is:
(1) can basically eliminate precipitation underkell clearance and stormy waves to the influence in lower concentration mud stockyard, can not consider underkell clearance and stormy waves superelevation substantially during the capacity of design mud stockyard, increase considerably the stockyard and deposit the mud capacity, economize the land resource.
(2) because the basic lower concentration muck surface that guarantees does not have rich water existence, help the yard sludge top layer and form crust layer under field conditions (factors), be the follow-up condition that facilitates in mud stockyard.
Description of drawings
Fig. 1 is the formation synoptic diagram of horizontal sand pocket of the present invention and vertical drainage plate.
Fig. 2 is the formation synoptic diagram of bottom of the present invention rough vacuum drainage system.
Fig. 3 is that bottom soft vacuum method for pumping surface water of sullage yard of the present invention is comprehensively arranged synoptic diagram.
Have among the above figure: cofferdam 1, horizontal sand pocket 2, drain board 3, mao bamboon 4, thin wire 5, vacuum extractor 6, air permeation device 7, the first horizontal longitudinal drainage pipeline 8, aqueduct 9, the second horizontal longitudinal drainage pipeline 10, airway 11, nut 12, filter pipe 13, pvc pipe 14, vacuum meter 15, airway 16.
Embodiment
1, set up rough vacuum space, bottom drainage system:
1) preparation of material and processing: be ready to thin wire and cord that mao bamboon pole and colligation are used, the length direction of drain board along mao bamboon is fixed on the mao bamboon, make sand pocket in the materials processing place;
2) laying of horizontal drainage system, vertical drainage plate: 1 width sets up horizontal sand pocket 2 at the cofferdam inner bottom part along the cofferdam, and the sand pocket spacing is decided on practical situation; The mao bamboon 4 that will have a drain board 3 vertically inserts in the weir in the ground along horizontal sand pocket, and make the drain board on the vertical direction tightly be attached on the sand pocket, with thin wire 5 sand pocket and mao bamboon colligation are got up simultaneously, mao bamboon inserts the mud degree of depth will guarantee that mao bamboon is not washed upside down by mud in blowing the silt process.
3) the setting up and be communicated with of pumping system: set up vacuum extractor 6 and air permeation device 7 on the cofferdam, horizontal longitudinal drainage pipeline 8 is communicated with vacuum extractor by aqueduct 9, and horizontal longitudinal drainage pipeline 10 passes through airway 11 and is communicated with air permeation device; With nut 12 filter pipe 13 in the sand pocket 2 is connected with pvc pipe 14, pvc pipe 14 is connected to horizontal longitudinal drainage pipeline 8 and 10, like this two ends of sand pocket 2 just and respectively be laid in the cofferdam on vacuum extractor be connected with air permeation device; In order to monitor the vacuum tightness in the sand pocket drainage system, vacuum meter 15 usefulness airways 16 are communicated with filter pipe 13.Rough vacuum space, bottom, stockyard drainage system sets up and finishes like this.
2, blowing-filling sludge: in the blowing-filling sludge process, this water exhaust system can in time be discharged the stockyard surface water, thus the mud height in the cofferdam can near so that reach the height in cofferdam.
3, regulation system vacuum tightness and drawing water; According to the water content of blowing-filling sludge, utilize the valve opening degree of air permeation device to regulate negative pressure of vacuum value and air-flow in the sand pocket drainage system, make drainage effect the best of system, determined the open degree of air permeation device valve, pumping system just can have been drawn water; In pump process, water content of slurry is diminishing gradually, and this need regulate the drainage efficiency that negative pressure of vacuum value in the sandbag drainage system and air-flow guarantee system in pump process.
In addition to the implementation, the present invention can also have other embodiments.The technical scheme that all employings are equal to replacement or equivalent transformation formation all drops on the protection domain that the present invention requires.
Claims (2)
1. a bottom rough vacuum extracts the method for mud stockyard surface water, it is characterized in that in the cofferdam (1) bottom sets up horizontal sand pocket (2) drainage system and be connected with vertical drainage plate (3) and with vacuum extractor (6) and form cofferdam bottom space drainage system; Wherein, horizontal sand pocket (2) links to each other with vertical drainage plate (3), the first horizontal longitudinal drainage pipeline (8), the second horizontal longitudinal drainage pipeline (10) link to each other with horizontal sand pocket (2) respectively, vacuum extractor (6) links to each other with the first horizontal longitudinal drainage pipeline (8) by aqueduct (9), and air permeation device (7) links to each other with the second horizontal longitudinal drainage pipeline (10) by airway (11); According to the water content of mud, utilize air permeation device (7) to make the vacuum tightness in the water exhaust system be in lower level, thereby drainage channel is unimpeded in the assurance water exhaust system.
2. bottom according to claim 1 rough vacuum extracts the method for mud stockyard surface water, the centre that it is characterized in that horizontal sand pocket (2) is provided with filter pipe (13), two ends are connected with pvc pipe (14) by nut (12) respectively, the centre of drain board (3) is provided with mao bamboon (4), and drain board (3) is fixing by thin wire (5) with horizontal sand pocket (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810020711XA CN101229951B (en) | 2008-02-22 | 2008-02-22 | Bottom soft vacuum method for pumping surface water of sullage yard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810020711XA CN101229951B (en) | 2008-02-22 | 2008-02-22 | Bottom soft vacuum method for pumping surface water of sullage yard |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101229951A true CN101229951A (en) | 2008-07-30 |
| CN101229951B CN101229951B (en) | 2010-06-09 |
Family
ID=39896831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810020711XA Expired - Fee Related CN101229951B (en) | 2008-02-22 | 2008-02-22 | Bottom soft vacuum method for pumping surface water of sullage yard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101229951B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103993595A (en) * | 2014-05-30 | 2014-08-20 | 东南大学 | Water-draining and anti-seepage method for high-water-content dredged mud storage yard cofferdam space |
| CN104278686A (en) * | 2014-05-30 | 2015-01-14 | 江苏鸿基水利建设工程有限公司 | Spatial drainage and anti-seepage system for high-water-content dredged sediment yard cofferdam |
| CN109734273A (en) * | 2019-02-25 | 2019-05-10 | 吴慧明 | A kind of construction slurry large-scale treatment method |
| CN109879568A (en) * | 2017-12-04 | 2019-06-14 | 广东恒源建设集团有限公司 | Low energy consumption mud or sludge drying or cured method |
-
2008
- 2008-02-22 CN CN200810020711XA patent/CN101229951B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103993595A (en) * | 2014-05-30 | 2014-08-20 | 东南大学 | Water-draining and anti-seepage method for high-water-content dredged mud storage yard cofferdam space |
| CN104278686A (en) * | 2014-05-30 | 2015-01-14 | 江苏鸿基水利建设工程有限公司 | Spatial drainage and anti-seepage system for high-water-content dredged sediment yard cofferdam |
| CN104278686B (en) * | 2014-05-30 | 2016-05-25 | 江苏鸿基水利建设工程有限公司 | High-moisture percentage dredging dust field space, cofferdam draining seepage control system |
| CN109879568A (en) * | 2017-12-04 | 2019-06-14 | 广东恒源建设集团有限公司 | Low energy consumption mud or sludge drying or cured method |
| CN109734273A (en) * | 2019-02-25 | 2019-05-10 | 吴慧明 | A kind of construction slurry large-scale treatment method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101229951B (en) | 2010-06-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102587352B (en) | Hot-water draining consolidation processing device and hot-water draining consolidating processing method for soft soil foundation | |
| CN101851914B (en) | Method for regulating and controlling ventilating transformation and quickly reinforcing dredger fill in vacuum | |
| CN102330424B (en) | Vacuum preloading consolidation method for duplex vacuum tube well of blowing filling soft soil | |
| CN102817354B (en) | Method for dredging soft foundation by dredger fill and reinforcement | |
| CN103924576A (en) | Intelligent control three-dimensional drainage vacuum preloading method for particle tailing ore reinforced fill dam | |
| CN103015400B (en) | Efficient quick method for treating separated directly-connected vacuum preloaded foundation | |
| CN103255761A (en) | Method for reinforcing soft soil foundation by using calescence type vacuum preloading way | |
| CN102817348A (en) | Treatment method of recent dredger-fill silt foundation | |
| CN102220757A (en) | Immediate processing method for drainage solidifying of super soft soil shallow surface space | |
| CN102392438A (en) | Dehydration drying method capable of improving bearing capacity of dredged sediment stock dump | |
| CN204370458U (en) | A kind of open-cut foundation ditch dewatering installation | |
| CN101229951B (en) | Bottom soft vacuum method for pumping surface water of sullage yard | |
| CN111270663A (en) | Positive and negative pressure combined vacuum preloading soft foundation reinforcing system and method | |
| CN105113562A (en) | Water knife mud suction device applied to hardened soil body structure | |
| CN105064383A (en) | Pipe-inserting negative pressure air jet deep-well dewatering device | |
| CN101230568B (en) | U-shaped soft vacuum dredged silt rapid drainage method | |
| CN103774516B (en) | The underlayment stabilized treatment method of soft base cut subgrade | |
| CN204898752U (en) | Mud equipment is inhaled to water sword that applies to knotts clay body structure | |
| CN201473943U (en) | Soft foundation treatment device | |
| CN104452734B (en) | Rapid soft foundation separation preloading method | |
| CN102912787B (en) | Vacuum preloading method for fine sand mats and filter tube sealing | |
| CN110185051A (en) | Deep narrow excavation water discharge method | |
| CN105484229A (en) | Overlying mud layer seal vacuum pre-pressing method suitable for water area soft foundation | |
| CN105862716B (en) | Integral type well point plastic strip pipe | |
| CN212001021U (en) | Soft soil foundation reinforcing structure in dredger fill area |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100609 |