CN208933947U - A kind of novel evacuated precompressed subgrade combined stack-load system - Google Patents

A kind of novel evacuated precompressed subgrade combined stack-load system Download PDF

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Publication number
CN208933947U
CN208933947U CN201821684486.5U CN201821684486U CN208933947U CN 208933947 U CN208933947 U CN 208933947U CN 201821684486 U CN201821684486 U CN 201821684486U CN 208933947 U CN208933947 U CN 208933947U
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CN
China
Prior art keywords
subgrade
water bag
combined stack
sealed water
geotextiles
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Expired - Fee Related
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CN201821684486.5U
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Chinese (zh)
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周宏建
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Individual
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Individual
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Priority to CN201821684486.5U priority Critical patent/CN208933947U/en
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Abstract

The utility model relates to a kind of novel evacuated precompressed subgrade combined stack-load systems, including subgrade, plastic draining board, suction piping, sand bedding course, geotextiles, sealing film and sealed water bag.In several plastic draining board insertion subgrades;Tile sand mat of subgrade on subgrade ground;Suction piping is embedded in sand bedding course;Geotextiles cover sand bedding course;Sealing film is layed in above geotextiles;Sealing film top combined stack-load fills the sealed water bag of water.The utility model is by the sealed water bag combined stack-load of several inner vacuums in subgrade ground, and the precompression for forming subgrade top is filled the water directly into water bag by pipeline, achieve the purpose that save preloading cost, it directly discharges water after engineering, its preloading simple process, easy to operate, sealed water bag is reusable, and not only construction period shortens, and construction cost is greatly reduced, and does not damage soil body environment also.

Description

A kind of novel evacuated precompressed subgrade combined stack-load system
Technical field
It is specially a kind of in subgrade integrated ground preloading software the utility model relates to soft foundation processing technical field Full water container realizes the novel evacuated pre-pressing system of soft foundation consolidation sedimentation.
Background technique
In civil engineering, either harbour, the building on airport or railway, highway are required first in first stage of construction to soft Ground carries out drainage sunk well, and the water in the Soft Soil Layer of underground is discharged, and lowering of watertable prevents what is settled under later spot to ask Topic.Well known vacuum preloading method is exactly most common tradition reinforcement means in soft groundsill reinforcing engineering.Its several plastics Drain bar presses about 1.2 meters or so of spacing, and insertion mud, silt matter soil, rinse fill etc. are saturated in sticky subgrade;Then on ground It is laid with horizontal drainage sand bedding course, suction piping is buried in sand bedding course, one layer of geotextiles is covered on sand bedding course, re-lays one to two layers Film is sealed, the surrounding of film is sealed while being embedded in stabilization zone sealing ditch, sand bedding course and atmospheric isolation are made;Again in the upper surface of sealing film The a large amount of earthwork of combined stack-load has increased the precompression on subgrade top, finally by vacuum plant to being embedded in sand bedding course Pumping, makes to form negative pressure in the soil body in suction piping, to the pore water in soil body gap be passed through vertical in plastic draining board Sand bedding course is sucked to drainage channel and is extracted out through the suction piping in sand bedding course, and realizing reduces pore water pressure, and increase has effect Power makes the soil body generate consolidation, reduces posterior settlement, improves the purpose of foundation capability.In above-mentioned construction, sand bedding course top Precompression be to be established by a large amount of earthwork of combined stack-load, the earthwork of preloading is more, and precompression is bigger, obvious subgrade The earth volume of top preloading is very big, all places even as high as up to a hundred.So of such a size earth volume generally can not at the construction field (site) near It obtains, it needs to expend a large amount of transportation cost and obtains from a distance, also needs to clean out these earthwork after engineering, no Construction cost is increased only, local soil body ecological environment is also destroyed.Therefore, traditional vacuum preloading method combined stack-load That there are task difficulties is big for system, the period is long, construction cost is high, the technical deficiency of damage ecological environment.
Summary of the invention
For technical deficiency existing for traditional vacuum drainage industry combined stack-load system, the utility model provides a kind of new Type vacuum preloading subgrade combined stack-load system solves the precompressed matter transportation heap in traditional precompressed subgrade combined stack-load system Carry problem difficult, that cleaning transport is difficult.
The utility model is implemented by the following technical programs: a kind of novel evacuated precompressed subgrade combined stack-load system, packet Include subgrade, plastic draining board, suction piping, sand bedding course, geotextiles, sealing film and sealed water bag, the plastic draining board It is several, several plastic draining boards are by setting spacing insertion subgrade;Tile Water-drainage sand pad on the subgrade ground Layer;The suction piping is embedded in sand bedding course;The geotextiles are covered on sand bedding course top;The sealing film is laid with In geotextiles top, while being embedded in the sealing ditch of stabilization zone surrounding;The sealed water bag is by software every leakage compression-resistant material system At, and intake-outlet valve is equipped in the wall portion of water bag, it is characterised in that:
The sealed water bag is several, and successively heap is loaded in sealing film top;
Water is marked in the sealed water bag;
The length formed after the sealed water bag water filling is greater than width, and width is greater than height.
Further, the volume of the sealed water bag is greater than 2 cubic metres.
Further, the cavity volume of sealed water bag inner vacuum in the state of anhydrous injection.
Compared with the combined stack-load system of traditional vacuum precompressed subgrade, the favorable attributes of the utility model are: if will The sealed water bag combined stack-load of dry inner vacuum is filled the water directly into water bag by pipeline and is formed softly in subgrade ground The precompression on base top achievees the purpose that save preloading cost, can directly discharge water after engineering, sealed water bag can repeat to make With not only construction period shortens, and construction cost is greatly reduced and does not damage soil body environment.
Detailed description of the invention
Attached drawing 1 is the schematic view of the front view of the utility model embodiment one;
Attached drawing 2 is the overlooking structure diagram of the utility model embodiment one;
Attached drawing 3 is the schematic view of the front view of the utility model embodiment two;
Attached drawing 4 is the overlooking structure diagram of the utility model embodiment two.
In attached drawing 1,2,3,4: 1 being subgrade, 2 be plastic draining board, 3 be vacuum pump, 4 be suction piping, 5 be sand pad Layer, 6 be geotextiles, 7 be sealing film, 8 be sealed water bag, 801 be intake-outlet valve, 9 be seal ditch.
Specific embodiment
Explanation is further explained to the utility model below in conjunction with attached drawing
As shown in attached drawing 1,2,3,4, plastic draining board 2 is several, and several plastic draining boards 2 are by setting spacing insertion In subgrade 1;Tile sand mat of subgrade 5 on subgrade 1 ground;Suction piping 4 is embedded in sand bedding course 5;Compound nonwoven cloth 6 covers On 5 top of sand bedding course;It seals film 7 to be arranged two layers, two layers of sealing film 7 is laid on the upper surface of compound nonwoven cloth 6, while being embedded to reinforcing In the sealing ditch 9 of area's surrounding;Sealed water bag 8 is made of software every leakage compression-resistant material, and is equipped with intake-outlet in the wall portion of water bag Valve 801, sealed water bag 8 are several, are successively seated in the top of sealing film 7, water are marked in sealed water bag 8, after water filling The length of formation is greater than width, width is greater than height, and volume is greater than 2 cubic metres, and cavity volume is interior in the state of anhydrous injection Portion's vacuum.
The utility model Application Example one:
A, by the sealed water bag 8 of several inner vacuums successively heap be loaded in sealing film 7 top;
B, it is filled the water one by one into water bag by the intake-outlet valve 801 of 8 wall portion of sealed water bag, realizes combined stack-load, shape At the precompression on 1 top of subgrade;
C, after construction, the intake-outlet valve 801 for opening 8 wall portion of sealed water bag discharges water, and makes inside sealed water bag 8 Vacuum;
In a of Application Example one, seal 7 top of film 8 preloading of sealed water bag one or more layers.
The utility model Application Example two:
A, 8 heap of sealed water bag of several inner vacuums is loaded in the setting range surrounding on sealing 7 top of film;
B, by the intake-outlet valve 801 of 8 wall portion of sealed water bag, into water bag, water filling forms cofferdam one by one;
C, it fills the water into cofferdam, is crammed if any leakage point using soil, form the cofferdam water storage precompressed on 1 top of subgrade Power;
D, after construction, weir sluicing is opened, the intake-outlet valve 801 that sluicing finishes opening 8 wall portion of sealed water bag discharges water, And make 8 inner vacuum of sealed water bag;
In a of Application Example two, formed cofferdam 8 preloading of sealed water bag one or more layers.

Claims (4)

1. a kind of novel evacuated precompressed subgrade combined stack-load system, including subgrade, plastic draining board, suction piping, sand pad Layer, geotextiles, sealing film and sealed water bag, the plastic draining board are several, and several plastic draining boards are by between setting Away from insertion subgrade;Tile sand mat of subgrade on the subgrade ground;The suction piping is embedded in sand bedding course;Institute The geotextiles stated are covered on sand bedding course top;The sealing film is layed in geotextiles top, while being embedded to stabilization zone surrounding It seals in ditch;The sealed water bag is made of software every leakage compression-resistant material, and is equipped with intake-outlet valve in the wall portion of water bag, It is characterized by:
The sealed water bag is several, and successively heap is loaded in sealing film top;
Water is marked in the sealed water bag.
2. a kind of novel evacuated precompressed subgrade combined stack-load system according to claim 1, it is characterised in that: described close The length formed after the water filling of water shutoff bag is greater than width, and width is greater than height.
3. a kind of novel evacuated precompressed subgrade combined stack-load system according to claim 1 or 2, it is characterised in that: institute The volume for stating sealed water bag is more than or equal to two cubic metres.
4. a kind of novel evacuated precompressed subgrade combined stack-load system according to claim 3, it is characterised in that: described close The cavity volume of water shutoff bag inner vacuum in the state of anhydrous injection.
CN201821684486.5U 2018-10-17 2018-10-17 A kind of novel evacuated precompressed subgrade combined stack-load system Expired - Fee Related CN208933947U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821684486.5U CN208933947U (en) 2018-10-17 2018-10-17 A kind of novel evacuated precompressed subgrade combined stack-load system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821684486.5U CN208933947U (en) 2018-10-17 2018-10-17 A kind of novel evacuated precompressed subgrade combined stack-load system

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CN208933947U true CN208933947U (en) 2019-06-04

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110485436A (en) * 2019-07-24 2019-11-22 浙江大学 Engineering slurry and dregs alternating layers backfill pit foundation structure and reconstruction ground based method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110485436A (en) * 2019-07-24 2019-11-22 浙江大学 Engineering slurry and dregs alternating layers backfill pit foundation structure and reconstruction ground based method
CN110485436B (en) * 2019-07-24 2021-03-05 浙江大学 Engineering slurry and slag soil interbedded backfill pit foundation structure and foundation reconstruction method

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CF01 Termination of patent right due to non-payment of annual fee
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Granted publication date: 20190604

Termination date: 20201017