CN205742148U - A kind of anatonosis siphon drainge system for hypotonicity slight slope - Google Patents

A kind of anatonosis siphon drainge system for hypotonicity slight slope Download PDF

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Publication number
CN205742148U
CN205742148U CN201620421652.7U CN201620421652U CN205742148U CN 205742148 U CN205742148 U CN 205742148U CN 201620421652 U CN201620421652 U CN 201620421652U CN 205742148 U CN205742148 U CN 205742148U
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China
Prior art keywords
siphon
pervious concrete
hypotonicity
pipe
drainage
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Expired - Fee Related
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CN201620421652.7U
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Chinese (zh)
Inventor
于洋
孙红月
范雲鹤
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Zhejiang University ZJU
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Zhejiang University ZJU
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  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)

Abstract

This utility model relates to hyposmosis Geotechnical Engineering technical field of drainage, is specifically related to a kind of anatonosis siphon drainge system for hypotonicity slight slope, is particularly well-suited to the engineering drainage of hyposmosis coefficient water rich strata.It is made up of with siphon drainge system pervious concrete pressure break injected system, for the loess slope with hypotonicity and settlement by soaking, pervious concrete is pressed in hypotonicity Loess Landslide, forms high osmosis network channel, expand single siphon drainage hole and produce the coverage of cone of depression.Drainage efficiency is increased by the permeable network of high osmosis, rely on high-lift siphon principle, subsoil water unnecessary in automatical and efficient real-time discharge side slope, slope underground water position can be controlled below safe water plane, without any external impetus, there is the advantage that cost is low, efficiency is high.

Description

A kind of anatonosis siphon drainge system for hypotonicity slight slope
Technical field
The invention belongs to hypotonicity soil body technical field of drainage, be specifically related to a kind of by press-in seepy material formation Thief zone The water discharge method of property network, is particularly well-suited to the draining of ground and the side slope being made up of hypotonicity soil.
Background technology
In basement process and preventing land slide field, the subsoil water that the discharge soil body is contained within time is the pass of engineering control success or not Key.But, for the soil body that permeability is the lowest, drainage procedure generally requires long time, largely effects on project progress, carries In the high unit interval, the displacement of the hypotonicity soil body becomes the main path solving this problem.
At present, in field of foundation treatment, conventional sand drain and plastic draining board are as drainage channel, by the way of piling prepressing Increase pore water pressure, between the soil body and drainage channel, form bigger hydraulic gradient, the power discharged as subsoil water.This The kind way engineering time is long, and complex procedures.And in slope treatment, carry out draining frequently with gravity type osculum, the most usually The puzzlement blocked by osculum.For solving this problem, having scholar to use siphon method that side slope is carried out draining, its advantage is can To realize automatically controlling of siphon startup, it is difficult to plug-hole, and draining depth is bigger.But this method is in the hypotonicity soil body There is also some problems.Owing to the permeability of the soil body is low, cause entry into the rate of discharge of groundwater in siphonic system collector pipe little, siphon Time out is long, has the risk of inefficacy.It addition, hypotonicity often leads to high hydraulic gradient so that siphon drainage cone of depression Coverage is limited, the low mode in intensive layout siphon drainage hole need to be used to solve this problem, cause quantities to be greatly increased.Cause This, it is necessary to a kind of method and apparatus of invention, improves the drainage efficiency of the hypotonicity soil body in conjunction with siphon drainge system and affects model Enclose.
Summary of the invention
Low for the drainage efficiency in the hypotonicity soil body of siphon drainage method in prior art, coverage is little, needs a large amount of The defects such as manpower and materials, patent of the present invention is to be solved be technical problem is that to be become by seepy material pressure break in the hypotonicity soil body Net, forms the permeable network of high osmosis.Described anti-reflection technology is possible not only to increase hypotonicity inside soil body drainage area, carries High drainage efficiency, and can play drainage in the effect of internal reinforcement, soil particle is had filtration, it is ensured that soil Body will not produce corrosion and destroy.In conjunction with siphon Auto-drainage, automatically recover, effective feature steady in a long-term, it is achieved hypotonicity Efficient, the stable and safety drain of the soil body.The soil body type that subsoil water content is high, permeability is low, such as loess, silty clay etc..
The technical solution adopted for the present invention to solve the technical problems is:
A kind of anatonosis siphon drainge system for hypotonicity slight slope, it is characterised in that: the described anatonosis for hypotonicity slight slope Siphon drainge system includes that pressure break injected system and siphon drainge system, described pressure break injected system include high-pressure pump, boring set Pipe, pervious concrete, described siphon drainge system includes siphon, collecting-tank, and siphon drainge system is that lift is higher than 10m High-lift siphon drainge system, for automatically starting siphon when groundwater table rise, discharge subsoil water in stratum, control in real time Level of ground water processed is below a safety level.
The borehole casing of pressure break injected system by pervious concrete pumping outlet, trocar sheath joint, inner sleeve pipe close, inner sleeve, Outer sleeve, orientation inject tube head, water penetration collector pipe composition, and orientation injection tube head is arranged on low by boring by borehole casing Precalculated position in permeability slight slope, adjusts orientation and injects tube head position, it is ensured that the injection direction of pervious concrete.High-pressure pump with Pervious concrete pumping outlet be connected, pervious concrete is injected between inner sleeve and outer sleeve, then by pervious concrete from Orientation is injected tube head and is injected hypotonicity slight slope, and pervious concrete develops along soil body weakness zone, at fracturing stratum ground simultaneously, Whole crevice space can be full of and solidify, forming space high osmosis drainage network, after pervious concrete solidification, take off boring set The trocar sheath joint of pipe, inner sleeve pipe close, make the inner sleeve of borehole casing be connected with the siphon of siphon drainge system, by water Inversely pour into siphon and enter the collector pipe of lower end, reducing siphon pipe lower end elevation, making pipe lower end elevation less than pipe upper end Elevation, it is achieved initial siphon, subsoil water enters orientation by space high osmosis drainage network and injects tube head, then by permeable mixed Solidifying soil and water penetration collector pipe enter inner sleeve, then by siphon, water are discharged to collecting-tank.
The described anatonosis siphon drainge system for hypotonicity slight slope, it is characterised in that: described pervious concrete, oozes Coefficient reaches 0.01~0.02m/d thoroughly, uses a small amount of cement mortar to add such as graded aggregate, forms the permeable structure of high voidage, as Seepage action of ground water passage.After press-in loess, formed centered by collector pipe, to the drainage network of surrounding diffusion.
Described borehole casing is double-tube structure, is pervious concrete injection channel between inner sleeve and outer sleeve.
Described siphon uses internal diameter polyurethane (PU) siphon less than 5mm, during siphon is flowed, and can be with shape Become slug flow, air will not be occurred to accumulate.
It is 10MPa that described high-pressure pump maximum is available for pressure, according to orientation inject tube head present position, overlying soil thickness with And the osculum spacing related to determines high-pressure pump pressure.
The inner sleeve of described borehole casing uses PVC, simultaneously as siphonal placement passage.
The outer sleeve of described borehole casing uses steel pipe, and pipe end arranges sizing tube head, and orientation tube head is same in boring procedure Shi Zuowei drill bit.
The invention has the beneficial effects as follows and be mainly manifested in:
1, the slope drainage system of the present invention utilizes high-lift siphon principle, subsoil water unnecessary in automatical and efficient real-time discharge side slope, energy Control slope underground water position below safe water plane, it is not necessary to any external impetus;
2, pervious concrete is pressed in hypotonicity Loess Landslide by the present invention by high pressure, forms high osmosis network channel, expands single Individual siphon drainage hole produces the coverage of cone of depression;
3, the high osmosis network channel that the present invention is formed, has draining concurrently and reinforces two functions, increases soil while lowering of watertable Body shearing strength, improves Side Slope Safety Coefficient;
4, present invention is specifically directed to the loess slope with hypotonicity and settlement by soaking, increase drainage efficiency by the permeable network of high osmosis, Rely on siphon drainage technology Auto-drainage, there is the advantage that cost is low, efficiency is high.
Accompanying drawing explanation
Fig. 1 is the know-why overall diagram of the present invention;
Fig. 2 is the borehole casing axial section of the present invention;
Fig. 3 is the borehole casing radial cutaway view of the present invention;
In figure: 1 level of ground water;2 space high osmosis drainage networks;3 borehole casings;4 hypotonicity slight slopes;5 siphons;6 collection Pond;7 pervious concrete pumping outlets;8 trocar sheath joints;9 inner sleeve pipe closes;10 inner sleeves;11 outer sleevees;12 Orientation injects tube head;13 water penetration collector pipes;14 pervious concretes.
Detailed description of the invention
The present invention provides a kind of anatonosis siphon drainge system for hypotonicity slight slope, described for hypotonicity slight slope Anatonosis siphon drainge system includes that pressure break injected system and siphon drainge system, described pressure break injected system include high-pressure pump, brill Hole sleeve 3, pervious concrete 14;Described siphon drainge system includes siphon 5, collecting-tank 6, and siphon drainge system is for raising The journey high-lift siphon drainge system higher than 10m, for automatically starting siphon when groundwater table rise, discharges in stratum in real time Subsoil water, controlling groundwater level is below a safety level, and the borehole casing 3 of pressure break injected system is pumped by pervious concrete Mouth 7, trocar sheath joint 8, inner sleeve pipe close 9, inner sleeve 10, outer sleeve 11, orientation inject tube head 12, water penetration Collector pipe 13 forms, and orientation is injected tube head 12 by boring and is arranged on the pre-determined bit in hypotonicity slight slope 4 by borehole casing 3 Putting, adjust orientation and inject tube head 12 position, it is ensured that the injection direction of pervious concrete 14, high-pressure pump pumps with pervious concrete Mouthfuls 7 are connected, and are injected by pervious concrete 14 between inner sleeve 10 and outer sleeve 11, then by pervious concrete 14 from Orientation is injected tube head 12 and is injected hypotonicity slight slope 4, and pervious concrete 14 develops along soil body weakness zone, at fracturing stratum Ground, meanwhile, it is capable to be full of whole crevice space and solidify, forms space high osmosis drainage network 2, and pervious concrete 14 coagulates Take off the trocar sheath joint 8 of borehole casing 3, inner sleeve pipe close 9 after Gu, make the inner sleeve 10 of borehole casing 3 arrange with siphon The siphon 5 of water system is connected, and by watery vomiting to pouring into siphon 5 and entering the collector pipe 13 of lower end, reduces under siphon 5 pipe End elevation, makes the pipe lower end elevation elevation less than pipe upper end, it is achieved initial siphon, and subsoil water passes through high osmosis drainage network, space Network 2 enters orientation and injects tube head 12, then enters inner sleeve 10 by pervious concrete 14 and water penetration collector pipe 13, then leads to Cross 5 water of siphon and be discharged to collecting-tank 6.

Claims (1)

1. the anatonosis siphon drainge system for hypotonicity slight slope, it is characterised in that: the described increasing for hypotonicity slight slope Ooze siphon drainge system and include that pressure break injected system and siphon drainge system, described pressure break injected system include high-pressure pump, boring Sleeve pipe (3), pervious concrete (14);Described siphon drainge system includes siphon (5), collecting-tank (6), siphon drainage System is the high-lift siphon drainge system that lift is higher than 10m, for automatically starting siphon when groundwater table rise, arranges in real time Going out subsoil water in stratum, controlling groundwater level is below a safety level, and the borehole casing (3) of pressure break injected system is by permeable Concrete pumping mouth (7), trocar sheath joint (8), inner sleeve pipe close (9), inner sleeve (10), outer sleeve (11), Orientation injects tube head (12), water penetration collector pipe (13) composition, and orientation is injected tube head (12) by boring by borehole casing (3) It is arranged on the precalculated position in hypotonicity slight slope (4), adjusts orientation and inject the position of tube head (12), it is ensured that pervious concrete (14) injection direction, high-pressure pump is connected with pervious concrete pumping outlet (7), and pervious concrete (14) is injected internal sleeve Between pipe (10) and outer sleeve (11), then pervious concrete (14) is injected tube head (12) from orientation and inject hypotonic Property slight slope (4) thoroughly, pervious concrete (14) develops along soil body weakness zone, at fracturing stratum ground meanwhile, it is capable to be full of Whole crevice space also solidifies, and forms space high osmosis drainage network (2), takes off boring after pervious concrete (14) solidification The trocar sheath joint (8) of sleeve pipe (3), inner sleeve pipe close (9), make inner sleeve (10) and the siphon of borehole casing (3) The siphon (5) of drainage system is connected, and by watery vomiting to pouring into siphon (5) and entering the collector pipe (13) of lower end, reduces rainbow Suction pipe (5) pipe lower end elevation, makes the pipe lower end elevation elevation less than pipe upper end, it is achieved initial siphon, and subsoil water is high by space Permeability drainage network (2) enters orientation and injects tube head (12), then by pervious concrete (14) and water penetration collector pipe (13) Enter inner sleeve (10), then by siphon (5), water is discharged to collecting-tank (6), described pervious concrete (14), ooze Coefficient reaches 0.01~0.02m/d thoroughly, and the inner sleeve (10) of described borehole casing (3) uses PVC, described Borehole casing (3) outer sleeve (11) use steel pipe.
CN201620421652.7U 2016-05-05 2016-05-05 A kind of anatonosis siphon drainge system for hypotonicity slight slope Expired - Fee Related CN205742148U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111206563A (en) * 2020-01-15 2020-05-29 浙江大学 Slope siphon drainage device with composite pipe diameter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111206563A (en) * 2020-01-15 2020-05-29 浙江大学 Slope siphon drainage device with composite pipe diameter

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20161130

Termination date: 20170505

CF01 Termination of patent right due to non-payment of annual fee