CN106836183A - A kind of Embankment Foundation soil layer plastic draining structure and its construction method - Google Patents
A kind of Embankment Foundation soil layer plastic draining structure and its construction method Download PDFInfo
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- CN106836183A CN106836183A CN201710094603.6A CN201710094603A CN106836183A CN 106836183 A CN106836183 A CN 106836183A CN 201710094603 A CN201710094603 A CN 201710094603A CN 106836183 A CN106836183 A CN 106836183A
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- water
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- board
- pipe
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- 239000004033 plastic Substances 0.000 title claims abstract description 173
- 229920003023 plastic Polymers 0.000 title claims abstract description 173
- 239000002689 soil Substances 0.000 title claims abstract description 65
- 238000010276 construction Methods 0.000 title claims abstract description 46
- 238000005086 pumping Methods 0.000 claims abstract description 35
- 239000004576 sand Substances 0.000 claims abstract description 26
- 239000003651 drinking water Substances 0.000 claims abstract description 20
- 235000020188 drinking water Nutrition 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 14
- 239000004575 stone Substances 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 108
- 239000004746 geotextile Substances 0.000 claims description 19
- 239000000758 substrate Substances 0.000 claims description 18
- 238000013461 design Methods 0.000 claims description 10
- 230000003014 reinforcing effect Effects 0.000 claims description 8
- 238000012546 transfer Methods 0.000 claims description 8
- 210000003205 muscle Anatomy 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 6
- 238000005538 encapsulation Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 239000011435 rock Substances 0.000 claims description 4
- 210000002966 serum Anatomy 0.000 claims description 4
- 235000019738 Limestone Nutrition 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 239000006028 limestone Substances 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 3
- 230000000452 restraining effect Effects 0.000 claims description 3
- 239000000565 sealant Substances 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 238000007596 consolidation process Methods 0.000 abstract description 13
- 238000001125 extrusion Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- -1 Polypropylene Polymers 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 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
- 230000035699 permeability Effects 0.000 description 1
- 238000007789 sealing Methods 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
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
The invention discloses a kind of Embankment Foundation soil layer plastic draining structure and its construction method, including vacuum pumping box and at least two plastic draining boards, connected by horizontal water-supply-pipe between two neighboring plastic draining board, four-way valve is provided with horizontal water-supply-pipe, rubber cover plate is provided with the top surface of plastic draining board, rubber cover plate connects vacuum pumping box by drinking-water pipe, is connected by being connected flexible pipe between two neighboring rubber cover plate, and drainpipe is provided with the top surface of vacuum pumping box.Its construction method includes：Surveying and locating, plastic draining structure are installed, fill sand gravel layer and block stone setting cushion.The inventive method can meet the Embankment Foundation soil consolidation construction of the different soft bases of soil property, have more reliable plastic draining system compared with traditional concretion method, quickly can extract the moisture in soil layer out, improve the consolidation strength of soil layer.
Description
Technical field
The present invention relates to a kind of Embankment Foundation soil layer plastic draining structure and its construction method.
Background technology
With the fast development of China's southeastern coast economy, various forms of Sea-Crossing Passages arise at the historic moment.Build sea wall phase
For bridge, tunnel, with low cost, provide and ship shielded area and can rationally utilize sea wall two ends cutting excavation stone
Square the advantages of.
And coastal area is due to the influence of river emptying into the sea, seabed is generally Muddy Bottoms soft layer, with water content is big, compression
Property high, low intensity, the features such as bad hydraulic permeability and soil layer are thick, growth period is postbacked not in the presence of levee body deadweight and building load
Uniform settlement, influences the firmness of building.Therefore plastic draining board concretion method uses more and more extensive.
Plastic draining plate of the prior art construction, due to only by extruding the draining that soil layer is realized to soil layer, not only
It is less efficient, and can not quickly by the moisture discharge in soil layer, while draining is not thorough enough.
The content of the invention
A kind of Embankment Foundation soil layer plastic row is provided present invention aim at for the deficiency existing for prior art
The technical scheme of water-bound and its construction method, is attached by by vacuum pumping box and plastic draining board, not only increases
Drainage channel, accelerates the expulsion efficiency of soil body moisture, and compared with existing plastic draining board, extrusion drainage and vacuum is arranged
Water is combined, with more preferable drainage performance, while the construction method can meet the Embankment Foundation soil consolidation of the different soft bases of soil property
Construction, has more reliable plastic draining system compared with traditional concretion method, quickly can extract the moisture in soil layer out, carries
The consolidation strength of soil layer high.
In order to solve the above-mentioned technical problem, the present invention is adopted the following technical scheme that：
A kind of Embankment Foundation soil layer plastic draining structure, it is characterised in that：Moulded including vacuum pumping box and at least two
Material drain bar, is connected between two neighboring plastic draining board by horizontal water-supply-pipe, and four-way valve is provided with horizontal water-supply-pipe, is moulded
Rubber cover plate is provided with the top surface for expecting drain bar, rubber cover plate connects vacuum pumping box by drinking-water pipe, two neighboring
Connected by being connected flexible pipe between rubber cover plate, drainpipe is provided with the top surface of vacuum pumping box；By by vacuum pumping box
Be attached with plastic draining board, not only increase drainage channel, accelerate the expulsion efficiency of soil body moisture, and with existing modeling
Material drain bar is compared, and extrusion drainage is combined with vacuum drainage, with more preferable drainage performance, improves consolidating for Embankment Foundation soil layer
Knot speed and consolidation quality, horizontal water-supply-pipe can realize the transmission of moisture between adj acent plastic drain bar, make moisture not
The same uniform draining of soil layer energy, improves the stability and reliability of whole Embankment Foundation soil layer, in the work of vacuum pumping box
Under, the moisture in soil layer enters plastic draining board, the drainpipe output through rubber cover plate and drinking-water pipe from vacuum pumping box,
The quick discharge of moisture is realized, when the water in plastic draining board is more, can be by adjacent plastic draining by being connected flexible pipe
Water in plate is allocated, and is more uniformly distributed the carrying capacity of each drinking-water pipe, improves the efficiency of draining.
Further, permeable hole is evenly arranged with four lateral surfaces of plastic draining board, is provided with permeable hole permeable
Film, wherein be provided with reinforcing plate muscle on two relative lateral surfaces, plastic draining board is internally provided with water delivery cavity, water delivery
Core body is provided with cavity, core body matches with water delivery cavity, screwed hole is provided with four lateral surfaces of plastic draining board,
Screwed hole is threadedly coupled with horizontal water-supply-pipe, and the top of plastic draining board is provided with step, and the water in soil layer can be by permeable
Film enters in plastic draining board through permeable hole, prevents sandy soil from blocking permeable hole, improves the transfer efficiency of moisture, and reinforcing plate muscle is effective
The intensity of plastic draining board is improve, makes plastic draining board more stable reliability during sinking, core body divides water delivery cavity
Into multiple transfer passages, meet each passage and individually circulate, prevent local stoppages and influence the overall work of plastic draining board to imitate
Removing and installing for horizontal water-supply-pipe is easy in rate, the design of screwed hole, prevents leak.
Further, the bottom of plastic draining board is provided with A-frame, and A-frame reduces plastic draining board and sinking
During bottom and soil layer contact area, reduce the resistance of sinking, plastic draining board is more easily reached submergence depth,
Improve flexibility during construction.
Further, core body includes substrate and deflector, and deflector Vertical Uniform is connected to the both sides up and down of substrate, substrate
The first water hole is evenly arranged with bottom surface, the second water hole, the first water hole and the second water delivery are provided with the side of substrate
Hole is mutually perpendicular to connection, and effectively can be separated for water delivery cavity by substrate and deflector, positioned at plastic draining board bottom
Water enters rubber cover plate by the first water hole, and the water in two neighboring plastic draining board is defeated through first by the second water hole
Water hole is delivered in rubber cover plate.
Further, vacuum cavity is provided with rubber cover plate, restraining position ring block is set on the bottom surface of vacuum cavity, spacing ring with
Step matches, and the left and right sides of vacuum cavity is symmetrically arranged with water inlet interface, and being provided with water outlet on the top surface of rubber cover plate connects
Mouthful, water outlet mouthpiece is connected with vacuum cavity, is buckled on step by spacing ring, realizes rubber cover plate with plastic draining board
It is tightly connected, prevents from being influenceed because of gas leakage the transfer efficiency of moisture, and then influences the consolidation rate of Embankment Foundation, two neighboring rubber
Water inlet interface is connected by being connected flexible pipe between glue cover plate, the mutual circulation of water is realized, drainage efficiency is improved.
Further, suction pump is provided with vacuum pumping box, at least three water inlet pipes is connected with the side of suction pump, entered
Magnetic valve is provided with water pipe, the top surface of suction pump connects drainpipe by connection tube, by the design of magnetic valve, Ke Yi
In time being cut off pipeline during leakage occurs in water inlet pipe, from the Pipeline transport water of other normal works, improves plastic draining knot
The stability and reliability of structure.
A kind of Embankment Foundation soil layer described above construction method of plastic draining structure, it is characterised in that including following step
Suddenly：
1) surveying and locating
A, area and shape first according to Embankment Foundation determine the construction location of plastic draining structure, and according to sea wall ground
The soil property water content of base selects the size of corresponding plastic draining board；
B and then construction area is delineated in the relevant position of Embankment Foundation according to drawing, and the construction area is carried out clearly
Reason, is transported after being tedded with the rooter topsoil thick to 50~80cm of the construction area surface with transport vehicle；
C, leveling treatment is then carried out with rammer compacter to construction area, and present situation soil matrix top surface after leveling lays one layer
The geotextiles that size matches with construction area, will be fixed with anchor pole around geotextiles with ground, prevent mud from entering
The sand gravel layer on top and influence drainage effect, while geotextiles use 250g/m2Polypropylene woven cloth, then in geotextiles
Surface is determined the installation site of plastic draining board by the design requirement of drawing, and sprinkles white pulverized limestone as mark in respective regions
Note, while stamping setting-out stake in the both sides of mark position；
2) plastic draining structure is installed
A, the center of the lifting rope of hoisting machine and plastic draining board is connected first, three are carried on plastic draining board
One end of angle support is vertical down, and plastic draining board is hoisted to the mark position of construction area, then by plastic draining board
At the uniform velocity transferred, until two sides of plastic draining board are clipped between setting-out stake, then on the top surface of plastic draining board
One piece of thickness of covering is the baffle plate of 30cm, and main force's axle of board-plugging device is propped up into baffle plate, using the hydraulic pressure sinking device of board-plugging device, is made
Board-plugging device main force axle it is synchronous with plastic draining board sink, until the top of the position that be connected with lifting rope of plastic draining board and setting-out
Flush, untie lifting rope, and remove hoisting machine；
B then with board-plugging device continue inserting piling plastic draining board, the submergence depth of plastic draining board is reached design requirement
Depth, the hydraulic means closed on board-plugging device, and main force's axle of board-plugging device is removed, and baffle plate is removed, while setting-out stake is extracted, use
Clay is filled；
C, then core body is vertically loaded into plastic draining board it is fixed, makes the second water hole in substrate side surfaces and modeling
Screwed hole alignment on material drain bar side, then installs rubber cover plate on the top surface of plastic draining board, with fluid sealant by rubber
Encapsulation process is carried out at glue cover plate and the gap of plastic draining board；
D, after plastic draining board is installed and terminated, the construction of next plastic draining board is carried out with above-mentioned steps, until
All Plastic Drain Slab Constructions in geotextiles terminate；
E, horizontal water-supply-pipe will be installed again between two adjacent plastic draining boards of back and forth or left and right, and in horizontal water-supply-pipe
Center four-way valve is installed, connected by longitudinal water-supply-pipe between two neighboring four-way valve, make whole plastic draining structure
It is distributed in spatial networks, will be attached by being connected flexible pipe between two adjacent rubber cover plates of left and right, and carry out at sealing
Reason；
Horizontal stand is installed in f, the position of last 40~50cm above geotextiles, vacuum is installed on horizontal stand and is drawn water
Case, and the rubber cover plate on each single plastic draining board is connected into vacuum pumping box by drinking-water pipe, and on rubber cover plate
Another water outlet mouthpiece is attached by drinking-water pipe with the water outlet mouthpiece on adjacent rubber cover plate, prevents air directly from going out
Water interface enters in plastic draining board, then by the top of vacuum pumping box by the externally connected water-storing device of drainpipe；
3) sand gravel layer is filled
After the installation of plastic draining structure terminates, sand gravel is laid in geotextiles, laying sand gravel is carried out in five times, from
Under up every time laying thickness be followed successively by 10cm, 10cm, 20cm, 20cm and 20cm, lay ground floor when, by rubber cover plate
On the junction of water outlet mouthpiece and drinking-water pipe laid with the sand gravel of 1~3cm of particle diameter, remaining position selection particle diameter is 5~8cm
Sand gravel laying, until ground floor laying is finished, and remaining each layer is laid using the laying method of ground floor, until
Sand gravel layer laying is finished；
4) block stone setting cushion
After sand gravel layer laying terminates, bagged sand first is covered around exposed vacuum pumping box, and drainpipe is erected
Directly position, then dumped rocks protecting foundation, and properly protect.
The present invention is by adopting the above-described technical solution, have the advantages that：
1st, it is attached by by vacuum pumping box and plastic draining board, not only increases drainage channel, accelerates soil mass water
The expulsion efficiency for dividing, and compared with existing plastic draining board, extrusion drainage is combined with vacuum drainage, with preferably row
Aqueous energy, improves the consolidation rate and consolidation quality of Embankment Foundation soil layer；
2nd, horizontal water-supply-pipe can realize the transmission of moisture between adj acent plastic drain bar, make the soil layer that moisture is different
The uniform draining of energy, improves the stability and reliability of whole Embankment Foundation soil layer；
3rd, in the presence of vacuum pumping box, the moisture in soil layer enters plastic draining board, through rubber cover plate and drinking-water pipe
Drainpipe output from vacuum pumping box, realizes the quick discharge of moisture, when the water in plastic draining board is more, by rank
Connecing flexible pipe can be allocated the water in adjacent plastic draining board, be more uniformly distributed the carrying capacity of each drinking-water pipe, improve
The efficiency of draining；
4th, A-frame reduces the contact area of plastic draining board bottom and soil layer in sinking watching, reduces what is sunk
Resistance, enables plastic draining board more easily to reach submergence depth, improves flexibility during construction；
5th, reinforcing plate muscle effectively increases the intensity of plastic draining board, makes plastic draining board more stable during sinking
Reliable, water delivery cavity is divided into multiple transfer passages, meets each passage and individually circulate by core body, is prevented local stoppages and is influenceed modeling
Expect the whole work efficiency of drain bar；
6th, construction method step of the invention is simple, can meet the Embankment Foundation soil consolidation construction of the different soft bases of soil property,
There is more reliable plastic draining system compared with traditional concretion method, quickly can extract the moisture in soil layer out, improve soil
The consolidation strength of layer.
Brief description of the drawings
The invention will be further described below in conjunction with the accompanying drawings：
Fig. 1 is plastic draining structure in a kind of Embankment Foundation soil layer plastic draining structure of the invention and its construction method
Design sketch；
Fig. 2 is the connection diagram of plastic draining board in the present invention；
Fig. 3 is the structural representation of core body in the present invention；
Fig. 4 is the partial enlarged drawing at I in Fig. 2；
Fig. 5 is the structural representation of rubber cover plate in the present invention；
Fig. 6 is the structural representation of vacuum pumping box in the present invention.
In figure：1- plastic draining boards；2- vacuum pumping boxes；3- rubber cover plates；4- drinking-water pipes；5- drainpipes；6- linkings are soft
Pipe；7- transverse direction water-supply-pipes；8- four-way valves；9- water delivery cavitys；10- reinforcing plate muscle；11- screwed holes；12- permeable holes；13- triangle branch
Frame；14- core bodys；15- substrates；16- deflectors；The water holes of 17- first；The water holes of 18- second；19- steps；20- vacuum cavities；
21- water outlet mouthpieces；22- spacing rings；23- water inlet interfaces；24- suction pumps；25- water inlet pipes；26- magnetic valves；27- connection tubes.
Specific embodiment
As shown in Figures 1 to 6, it is a kind of Embankment Foundation soil layer plastic draining structure of the invention, including vacuum pumping box 2
With at least two plastic draining boards 1, connected by horizontal water-supply-pipe 7 between two neighboring plastic draining board 1, horizontal water-supply-pipe 7
On be provided with four-way valve 8, be evenly arranged with permeable hole 12 on four lateral surfaces of plastic draining board 1, is respectively provided with permeable hole 12
There is water permeable membrane, wherein be provided with reinforcing plate muscle 10 on two relative lateral surfaces, plastic draining board 1 is internally provided with water delivery
Core body 14 is provided with cavity 9, water delivery cavity 9, core body 14 matches with water delivery cavity 9, core body 14 includes substrate 15 and water conservancy diversion
Plate 16, the Vertical Uniform of deflector 16 is connected to the both sides up and down of substrate 15, and the first water delivery is evenly arranged with the bottom surface of substrate 15
Hole 17, is provided with the second water hole 18 on the side of substrate 15, the first water hole 17 is mutually perpendicular to connect with the second water hole 18,
Effectively can be separated for water delivery cavity 9 by substrate 15 and deflector 16, and the water positioned at the bottom of plastic draining board 1 passes through first
Water hole 17 enters rubber cover plate 3, and the water in two neighboring plastic draining board 1 passes through the second water hole 18 through the first water hole
17 are delivered in rubber cover plate 3, and screwed hole 11, screwed hole 11 and transverse direction are provided with four lateral surfaces of plastic draining board 1
Water-supply-pipe 7 is threadedly coupled, and the top of plastic draining board 1 is provided with step 19, and the water in soil layer can be by water permeable membrane through permeable
Hole 12 enters in plastic draining board 1, prevents sandy soil from blocking permeable hole 12, improves the transfer efficiency of moisture, and reinforcing plate muscle 10 is effective
The intensity of plastic draining board 1 is improve, makes the more stable reliability during sinking of plastic draining board 1, core body 14 is by water delivery chamber
Body 9 is divided into multiple transfer passages, meets each passage and individually circulates, and prevents local stoppages and influences the entirety of plastic draining board 1
Removing and installing for horizontal water-supply-pipe 7 is easy in operating efficiency, the design of screwed hole 11, prevents leak, the bottom of plastic draining board 1
A-frame 13 is provided with, A-frame 13 reduces the contact area of plastic draining board 1 bottom and soil layer in sinking watching,
Reduce the resistance of sinking, plastic draining board 1 is more easily reached submergence depth, improve flexibility during construction.
Rubber cover plate 3 is provided with the top surface of plastic draining board 1, rubber cover plate 3 connects vacuum and takes out by drinking-water pipe 4
Water tank 2, is provided with vacuum cavity 20 in rubber cover plate 3, sets restraining position ring block 22 on the bottom surface of vacuum cavity 20, spacing ring 22 with
Step 19 matches, and the left and right sides of vacuum cavity 20 is symmetrically arranged with water inlet interface 23, is provided with the top surface of rubber cover plate 3
Water outlet mouthpiece 21, water outlet mouthpiece 21 is connected with vacuum cavity 20, is buckled on step 19 by spacing ring 22, realizes serum cap
Plate 3 is tightly connected with plastic draining board 1, prevents from being influenceed because of gas leakage the transfer efficiency of moisture, and then influence Embankment Foundation
Consolidation rate, water inlet interface 23 is connected between two neighboring rubber cover plate 3 by being connected flexible pipe 6, realizes the mutual circulation of water, is carried
Drainage efficiency high.
Connected by being connected flexible pipe 6 between two neighboring rubber cover plate 3, draining is provided with the top surface of vacuum pumping box 2
Suction pump 24 is provided with pipe 5, vacuum pumping box 2, at least three water inlet pipes 25, water inlet pipe are connected with the side of suction pump 24
Magnetic valve 26 is provided with 25, the top surface of suction pump 24 connects drainpipe 5 by connection tube 27, by setting for magnetic valve 26
Meter, in time can cut off pipeline when water inlet pipe 25 occurs and leaking, and from the Pipeline transport water of other normal works, improve
The stability and reliability of plastic draining structure；It is attached with plastic draining board 1 by by vacuum pumping box 2, is not only increased
Drainage channel, accelerates the expulsion efficiency of soil body moisture, and compared with the existing plastic draining board 1, by extrusion drainage with it is true
Idle discharge water is combined, and with more preferable drainage performance, improves the consolidation rate and consolidation quality of Embankment Foundation soil layer, horizontal water-supply-pipe
7 transmission that can realize moisture between adj acent plastic drain bar 1, enable the uniform draining of the different soil layer of moisture, improve
The stability and reliability of whole Embankment Foundation soil layer, in the presence of vacuum pumping box 2, the moisture in soil layer enters plastics
Drain bar 1, the drainpipe 5 through rubber cover plate 3 and drinking-water pipe 4 from vacuum pumping box 2 is exported, and realizes the quick discharge of moisture,
When the water in plastic draining board 1 is more, the water in adjacent plastic draining board 1 can be allocated by being connected flexible pipe 6,
The carrying capacity of each drinking-water pipe 4 is more uniformly distributed, the efficiency of draining is improved.
A kind of Embankment Foundation soil layer construction method of plastic draining structure described above, comprises the following steps：
1) surveying and locating
A, area and shape first according to Embankment Foundation determine the construction location of plastic draining structure, and according to sea wall ground
The soil property water content of base selects the size of corresponding plastic draining board 1；
B and then construction area is delineated in the relevant position of Embankment Foundation according to drawing, and the construction area is carried out clearly
Reason, is transported after being tedded with the rooter topsoil thick to 50~80cm of the construction area surface with transport vehicle；
C, leveling treatment is then carried out with rammer compacter to construction area, and present situation soil matrix top surface after leveling lays one layer
The geotextiles that size matches with construction area, will be fixed with anchor pole around geotextiles with ground, prevent mud from entering
The sand gravel layer on top and influence drainage effect, while geotextiles use 250g/m2Polypropylene woven cloth, then in geotextiles
Surface is determined the installation site of plastic draining board 1 by the design requirement of drawing, and sprinkles white pulverized limestone conduct in respective regions
Mark, while stamping setting-out stake in the both sides of mark position；
2) plastic draining structure is installed
A, first by the lifting rope of hoisting machine and plastic draining board 1 (technical standard of plastic draining board is as shown in table 1)
Heart position is connected, on plastic draining board 1 one end with A-frame 13 vertically down, and by the handling of plastic draining board 1
To the mark position of construction area, then plastic draining board 1 is at the uniform velocity transferred, until two sides of plastic draining board 1
It is clipped between setting-out stake, it is the baffle plate of 30cm that one piece of thickness is then covered on the top surface of plastic draining board 1, by the master of board-plugging device
Power axle props up baffle plate, using the hydraulic pressure sinking device of board-plugging device, makes the sinking synchronous with plastic draining board 1 of board-plugging device main force axle, directly
Flushed with the top of setting-out stake to the position that plastic draining board 1 is connected with lifting rope, untie lifting rope, and remove hoisting machine；
B and then continue inserting piling plastic draining board 1 with board-plugging device, the submergence depth of plastic draining board 1 is reached design requirement
Depth, the hydraulic means closed on board-plugging device, and remove main force's axle of board-plugging device removes baffle plate, while setting-out stake is extracted,
It is filled with clay；
C, then core body 14 is vertically loaded into plastic draining board 1 it is fixed, makes the second water delivery on the side of substrate 15
Hole 18 is alignd with the screwed hole 11 on the side of plastic draining board 1, and rubber cover plate 3 is then installed on the top surface of plastic draining board 1,
Encapsulation process will be carried out with fluid sealant at the gap of rubber cover plate 3 and plastic draining board 1；
D, after plastic draining board 1 is installed and terminated, the construction of next plastic draining board 1 is carried out with above-mentioned steps, directly
The construction of all plastic draining boards 1 on to geotextiles terminates；
E, horizontal water-supply-pipe 7 will be installed again between two adjacent plastic draining boards 1 of back and forth or left and right, and in horizontal water delivery
Four-way valve 8 is installed in the center of pipe 7, is connected by longitudinal water-supply-pipe between two neighboring four-way valve 8, makes whole plastic draining
Structure is distributed in spatial networks, will be attached by being connected flexible pipe 6 between two adjacent rubber cover plates 3 of left and right, and carry out
Encapsulation process；
Horizontal stand is installed in f, the position of last 40~50cm above geotextiles, vacuum is installed on horizontal stand and is drawn water
Case 2, and the rubber cover plate 3 on each single plastic draining board 1 is connected into vacuum pumping box 2 by drinking-water pipe 4, and serum cap
Another water outlet mouthpiece 21 is attached by drinking-water pipe 4 with the water outlet mouthpiece 21 on adjacent rubber cover plate 3 on plate 3, is prevented
Air directly enters in plastic draining board 1 from water outlet mouthpiece 21, then the top of vacuum pumping box 2 is connected by drainpipe 5
To outside water-storing device；
The technical standard of the plastic draining board of table 1
3) sand gravel layer is filled
After the installation of plastic draining structure terminates, sand gravel is laid in geotextiles, laying sand gravel is carried out in five times, from
Under up every time laying thickness be followed successively by 10cm, 10cm, 20cm, 20cm and 20cm, lay ground floor when, by rubber cover plate
Water outlet mouthpiece 21 on 3 is laid with the junction of drinking-water pipe 4 with the sand gravel of 1~3cm of particle diameter, and remaining position selection particle diameter is 5
The sand gravel laying of~8cm, until ground floor laying is finished, and remaining each layer is spread using the laying method of ground floor
If, until sand gravel layer laying is finished；
4) block stone setting cushion
After sand gravel layer laying terminates, bagged sand is first covered around exposed vacuum pumping box 2, and by drainpipe 5
It is vertically oriented, then dumped rocks protecting foundation, and properly protect, soil indicator change is as shown in table 2 before and after reinforcing.
Table 2 reinforces front and rear soil indicator change
Specific embodiment of the invention is these are only, but technical characteristic of the invention is not limited thereto.It is any with this hair
Based on bright, to realize essentially identical technique effect, done ground simple change, equivalent or modification etc., all cover
Among protection scope of the present invention.
Claims (7)
1. a kind of Embankment Foundation soil layer plastic draining structure, it is characterised in that：Including vacuum pumping box and at least two plastics
Drain bar, is connected between the two neighboring plastic draining board by horizontal water-supply-pipe, and four are provided with the horizontal water-supply-pipe
Port valve, is provided with rubber cover plate on the top surface of the plastic draining board, the rubber cover plate connects described by drinking-water pipe
Vacuum pumping box, is connected between the two neighboring rubber cover plate by being connected flexible pipe, is set on the top surface of the vacuum pumping box
It is equipped with drainpipe.
2. a kind of Embankment Foundation soil layer plastic draining structure according to claim 1, it is characterised in that：The plastic row
Permeable hole is evenly arranged with four lateral surfaces of water plate, water permeable membrane is provided with the permeable hole, wherein relative two
It is provided with reinforcing plate muscle on the lateral surface, the plastic draining board is internally provided with water delivery cavity, the water delivery cavity
Core body is inside provided with, the core body matches with the water delivery cavity, is respectively provided with four lateral surfaces of the plastic draining board
There is screwed hole, the screwed hole is threadedly coupled with the horizontal water-supply-pipe, and the top of the plastic draining board is provided with step.
3. a kind of Embankment Foundation soil layer plastic draining structure according to claim 2, it is characterised in that：The plastic row
The bottom of water plate is provided with A-frame.
4. a kind of Embankment Foundation soil layer plastic draining structure according to claim 2, it is characterised in that：The core body bag
Substrate and deflector are included, the deflector Vertical Uniform is connected to the both sides up and down of the substrate, on the bottom surface of the substrate
It is even to be provided with the first water hole, the second water hole, first water hole and described second are provided with the side of the substrate
Water hole is mutually perpendicular to connection.
5. a kind of Embankment Foundation soil layer plastic draining structure according to claim 2, it is characterised in that：The serum cap
Vacuum cavity is provided with plate, restraining position ring block, the spacing ring and the step phase are set on the bottom surface of the vacuum cavity
Match somebody with somebody, the left and right sides of the vacuum cavity is symmetrically arranged with water inlet interface, and being provided with water outlet on the top surface of the rubber cover plate connects
Mouthful, the water outlet mouthpiece is connected with the vacuum cavity.
6. a kind of Embankment Foundation soil layer plastic draining structure according to claim 1, it is characterised in that：The vacuum is taken out
Suction pump is provided with water tank, at least three water inlet pipes are connected with the side of the suction pump, be respectively provided with the water inlet pipe
The top surface for having magnetic valve, the suction pump connects the drainpipe by connection tube.
7. a kind of Embankment Foundation soil layer as claimed in claim 1 construction method of plastic draining structure, it is characterised in that bag
Include following steps：
1) surveying and locating
A, area and shape first according to Embankment Foundation determine the construction location of plastic draining structure, and according to Embankment Foundation
Soil property water content selects the size of corresponding plastic draining board；
B and then construction area is delineated in the relevant position of Embankment Foundation according to drawing, and the construction area is cleared up, used
The rooter topsoil thick to 50~80cm of the construction area surface is transported after tedding with transport vehicle；
C, leveling treatment is then carried out with rammer compacter to construction area, and present situation soil matrix top surface after leveling lays one layer of size
The geotextiles matched with construction area, will be fixed, then in the table of geotextiles with anchor pole around geotextiles with ground
Face is determined the installation site of plastic draining board by the design requirement of drawing, and sprinkles white pulverized limestone as mark in respective regions
Note, while stamping setting-out stake in the both sides of mark position；
2) plastic draining structure is installed
A, the center of the lifting rope of hoisting machine and plastic draining board is connected first, with triangle branch on plastic draining board
One end of frame is vertical down, and plastic draining board is hoisted to the mark position of construction area, then carries out plastic draining board
At the uniform velocity transfer, until two sides of plastic draining board are clipped between setting-out stake, then covered on the top surface of plastic draining board
One piece of thickness is the baffle plate of 30cm, and main force's axle of board-plugging device is propped up into baffle plate, using the hydraulic pressure sinking device of board-plugging device, makes plate
Owner's power axle sinking synchronous with plastic draining board, until the position that plastic draining board is connected with lifting rope is neat with the top of setting-out stake
It is flat, lifting rope is untied, and remove hoisting machine；
B and then continue inserting piling plastic draining board with board-plugging device, the submergence depth of plastic draining board is reached the depth of design requirement
Degree, the hydraulic means closed on board-plugging device, and remove main force's axle of board-plugging device removes baffle plate, while setting-out stake is extracted, with viscous
Soil is filled；
C, then core body is vertically loaded into plastic draining board it is fixed, makes the second water hole and the plastic row in substrate side surfaces
Screwed hole alignment on water plate side, then installs rubber cover plate, with fluid sealant by serum cap on the top surface of plastic draining board
Encapsulation process is carried out at plate and the gap of plastic draining board；
D, after plastic draining board is installed and terminated, the construction of next plastic draining board is carried out with above-mentioned steps, until geotechnological
All Plastic Drain Slab Constructions on cloth terminate；
E, horizontal water-supply-pipe will be installed again between two adjacent plastic draining boards of back and forth or left and right, and in horizontal water-supply-pipe
Four-way valve is installed in heart position, is connected by longitudinal water-supply-pipe between two neighboring four-way valve, makes whole plastic draining structure in sky
Between net distribution, will be attached by being connected flexible pipe between two adjacent rubber cover plates of left and right, and carry out encapsulation process；
Horizontal stand is installed in f, the position of last 40~50cm above geotextiles, and vacuum pumping box is installed on horizontal stand,
And the rubber cover plate on each single plastic draining board is connected into vacuum pumping box by drinking-water pipe, and it is another on rubber cover plate
Individual water outlet mouthpiece is attached by drinking-water pipe with the water outlet mouthpiece on adjacent rubber cover plate, prevents air from directly being connect from water outlet
Enter in plastic draining board at mouthful, then by the top of vacuum pumping box by the externally connected water-storing device of drainpipe；
3) sand gravel layer is filled
After plastic draining structure is installed and terminated, sand gravel is laid in geotextiles, laying sand gravel is carried out in five times, from lower past
The thickness of upper laying every time is followed successively by 10cm, 10cm, 20cm, 20cm and 20cm, when ground floor is laid, by rubber cover plate
Water outlet mouthpiece is laid with the junction of drinking-water pipe with the sand gravel of 1~3cm of particle diameter, and remaining position selection particle diameter is the sand of 5~8cm
Gravel is laid, until ground floor laying is finished, and remaining each layer is laid using the laying method of ground floor, until gravel
Rock layers laying is finished；
4) block stone setting cushion
After sand gravel layer laying terminates, bagged sand is first covered around exposed vacuum pumping box, and drainpipe is fixed vertically
Position, then dumped rocks protecting foundation, and properly protect.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710094603.6A CN106836183B (en) | 2017-02-21 | 2017-02-21 | A kind of Embankment Foundation soil layer plastic draining structure and its construction method |
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| CN201710094603.6A CN106836183B (en) | 2017-02-21 | 2017-02-21 | A kind of Embankment Foundation soil layer plastic draining structure and its construction method |
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| CN106836183B CN106836183B (en) | 2019-01-15 |
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| CN111945758A (en) * | 2020-08-27 | 2020-11-17 | 河南科技大学 | Reusable dewatering tank, foundation pit operation surface dewatering system and method |
| CN117661536A (en) * | 2023-12-12 | 2024-03-08 | 山东省建筑设计研究院有限公司 | Soft soil foundation reinforcing structure |
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| CN106836183B (en) | 2019-01-15 |
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