CN108330946A - A kind of maintenance by gas pressuriztion formula soft soil foundation drainage system - Google Patents
A kind of maintenance by gas pressuriztion formula soft soil foundation drainage system Download PDFInfo
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- CN108330946A CN108330946A CN201810333941.5A CN201810333941A CN108330946A CN 108330946 A CN108330946 A CN 108330946A CN 201810333941 A CN201810333941 A CN 201810333941A CN 108330946 A CN108330946 A CN 108330946A
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- China
- Prior art keywords
- gas
- pipe
- gas cylinder
- guide tube
- sump
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- 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.)
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Classifications
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- 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
Abstract
The present invention provides a kind of maintenance by gas pressuriztion formula soft soil foundation drainage system,Including plastic draining board,Plate boots,Siphon pipe,Sump,Raceway groove,Preloading,Suction pump,Air charging system,Air charging system includes gas cylinder A,Gas cylinder B,Diversion pipe,Branch pipe,Pressure gauge,Gas-guide tube,Valve C,Gas cylinder A fills sodium bicarbonate solution,Gas cylinder B fills citric acid solution,It is connected by diversion pipe between gas cylinder A and gas cylinder B,Pressure gauge is equipped among diversion pipe,Branch pipe is connected on diversion pipe,The arrival end of gas-guide tube is placed within gas cylinder A,The arrival end of gas-guide tube is more than liquid level,The outlet end of gas-guide tube is placed in bottom of catchmenting,Valve C is mounted on gas-guide tube,Raceway groove is excavated in soft soil foundation,Ditch trace interpolation enters several plastic draining boards,The bottom end mounting plate boots of plastic draining board,The water inlet of siphon pipe is inserted into plastic draining board,Sump is arranged near soft soil foundation,Suction pump is placed on outside sump.
Description
Technical field
The invention belongs to geotechnical engineering field more particularly to a kind of maintenance by gas pressuriztion formula soft soil foundation drainage systems.
Background technology
Weak soil has the characteristics that shearing strength is low, moisture content is high, bad hydraulic permeability, and it is past that engineering construction is carried out on soft soil foundation
Toward discharging consolidation is needed, traditional Sand-drained Ground draining concretion method drainage efficiency is low, and long in time limit, key control point is more, and chemistry adds
Gu method utilizes chemical curing agent reinforcing soft ground, but it can affect to environment, combined vacuum and surcharge preloading
Method, using vacuum pump negative pressure source combined heap load precompacting, can be incited somebody to action by covering air-locked geomembrane on weak soil surface in the short time
Air inside weak soil and pore water discharge, but this method energy consumption is huge, and it is complicated for operation cumbersome, consolidation by electroosmosis method is using soft
Directed flow of the pore water under the function of current in soil, makes the water content in weak soil reduce, but same energy consumption is huge, operation
It is complicated cumbersome.Soft soil foundation siphon drainage is that a kind of new water discharge method is carried such as Chinese Patent Application No. 201710576133.7
For a kind of Soft Soil Consolidation drainage system and method, including plastic draining board, siphon pipe, plate boots, preloading, sump and draw water
Pump is a kind of soft foundation discharge fixing method efficiently, easy, however since soft soil foundation siphon drainage process has slowly
The characteristics such as flowing and high lift in siphonic process and can stop that air is precipitated in flow process, and generate inner air tube accumulation.
It is influenced by factors such as siphon pipe quality, construction technologies, part siphon pipe can be caused to interrupt siphon because generating inner air tube accumulation,
These siphon pipes need to restart and the air in discharge pipe could normally play a role.
Invention content
The present invention for existing soft soil foundation water discharge technology there are the problem of, propose a kind of maintenance by gas pressuriztion formula soft soil foundation row
Water system has the advantages that exempt from dynamic high efficiency draining, causes liquid level to shake in the way of inflation, change the pressure in siphon pipe
By force, siphon disruption caused by the accumulation of siphon inner air tube is solved.
The technical scheme is that：A kind of maintenance by gas pressuriztion formula soft soil foundation drainage system, including plastic draining board, plate
Boots, siphon pipe, sump, raceway groove, preloading, suction pump, air charging system, air charging system include gas cylinder A, gas cylinder B, diversion pipe, branch
Pipe, pressure gauge, gas-guide tube, valve C, gas cylinder A fill sodium bicarbonate solution, and gas cylinder B fills citric acid solution, gas cylinder A and gas cylinder B
Between connected by diversion pipe, the both ends of diversion pipe are all located at liquid level hereinafter, being equipped with pressure gauge among diversion pipe, branch pipe is connected to
On diversion pipe, the air inlet of branch pipe is more than liquid level, and the arrival end of gas-guide tube is placed within gas cylinder A, and the arrival end of gas-guide tube exists
More than liquid level, the outlet end of gas-guide tube is placed in bottom of catchmenting, and is in liquid level hereinafter, valve C is mounted on gas-guide tube；In weak soil
Raceway groove is excavated in ground, ditch trace interpolation enters several plastic draining boards, and plastic draining board insertion depth is 10-12 meters, plastic row
The water inlet of the bottom end mounting plate boots of water plate, siphon pipe is inserted into plastic draining board, and the water outlet of siphon pipe is placed in sump,
The elevation of siphon pipe water outlet is less than the elevation of siphon pipe water inlet, and sump is arranged near soft soil foundation, well depth of catchmenting
More than 15 meters, suction pump is placed on outside sump, and preloading is placed on soft soil foundation surface.
Further, a diameter of 4mm of the siphon pipe.
Further, 1-3 root siphon pipes are inserted into the plastic draining board.
Further, a diameter of 10mm of the gas-guide tube.
Beneficial effects of the present invention are mainly manifested in：
1, the present invention, which by high pressure gas is filled with sump and causes liquid level concussion, dredges silting, not by other electrical equipments,
It is simple and reliable.
2, the present invention generates gas using chemical reaction, can be used for multiple times, operating method is simple, can dredge simultaneously more
Root siphon pipe, rapidly and efficiently restores siphon drainage.
3, the design of air charging system of the invention ensure that gas continuously flows into sump, in gas cylinder A and gas cylinder B
Air pressure remain dynamic equilibrium, keep whole device reliable and stable.
Description of the drawings
Fig. 1 is a kind of overall structure diagram of maintenance by gas pressuriztion formula soft soil foundation drainage system of the present invention；
Fig. 2 is a kind of structural schematic diagram of the air charging system of maintenance by gas pressuriztion formula soft soil foundation drainage system of the present invention；
In figure：Plastic draining board 1, siphon pipe 2, raceway groove 3, plate boots 4, preloading 5, sump 6, suction pump 7, air charging system 8, weak soil
Ground 9, gas cylinder A 81, gas cylinder B 82, diversion pipe 83, pressure gauge 84, gas-guide tube 85, valve C 86, branch pipe 87.
Specific implementation mode
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with technical solution of the present invention
Premised on implement, give detailed embodiment and specific operating process, but protection scope of the present invention be not limited to it is following
Embodiment.
As shown in Figure 1 and Figure 2, a kind of maintenance by gas pressuriztion formula soft soil foundation drainage system provided by the invention, including plastic draining
Plate 1, plate boots 4, siphon pipe 2, sump 6, raceway groove 3, preloading 5, suction pump 7, air charging system 8, air charging system include gas cylinder A 81,
Gas cylinder B 82, diversion pipe 83, branch pipe 87, pressure gauge 84, gas-guide tube 85, valve C 86, gas cylinder A 81 fill sodium bicarbonate solution,
Gas cylinder B 82 fills citric acid solution, is connected by diversion pipe 83 between gas cylinder A 81 and gas cylinder B 82, the both ends of diversion pipe 83
Liquid level is all located at hereinafter, being equipped with pressure gauge 84 among diversion pipe 83, branch pipe 87 is connected on diversion pipe 83, the air inlet of branch pipe 87
More than liquid level, the arrival end of gas-guide tube 85 is placed within gas cylinder A 81, and the arrival end of gas-guide tube 85 is more than liquid level, gas-guide tube
85 outlet end is placed in 6 bottom of sump, is in liquid level hereinafter, valve C 86 is mounted on gas-guide tube 85；In soft soil foundation 9
Raceway groove 3 is excavated, several plastic draining boards 1 are inserted into raceway groove 3,1 insertion depth of plastic draining board is 12 meters, plastic draining board 1
Bottom end mounting plate boots 4, the water inlet of siphon pipe 2 is inserted into plastic draining board 1, and the water outlet of siphon pipe 2 is placed in sump 6
Interior, the elevation of 2 water outlet of siphon pipe is less than the elevation of 2 water inlet of siphon pipe, and sump 6 is arranged near soft soil foundation 9, catchments
6 depth of well is 16 meters, and suction pump 7 is placed on outside sump 6, and preloading 5 is placed on 9 surface of soft soil foundation.Siphon pipe 2 it is a diameter of
4mm.2 siphon pipes 2 are inserted into plastic draining board 1.A diameter of 10mm of gas-guide tube 85.
When maintenance by gas pressuriztion formula soft soil foundation drainage system plays a role, the plastic draining board 1 that is set to inside soft soil foundation 9
Due to 9 surface preloading 5 of soft soil foundation and the Gravitative Loads of weak soil, charge for remittance can be generated inside plastic draining board 1, water accumulates in
In plastic draining board 1, under siphonage, the water accumulated in plastic draining board 1 is discharged by siphon pipe 2, is located at plastic draining
Water in the soft soil foundation 9 on 1 top of plate continues to collect into plastic draining board 1, in siphonage under gravity and load action
Under continue to be discharged.When maintenance by gas pressuriztion formula soft soil foundation drainage system initial start-up, draws water in the water outlet of siphon pipe 2, make rainbow
Suction pipe 2 starts, and when siphon drainage process starts, at the beginning of record draining, the water level of sump 6 constantly rises, when catchmenting
When 6 water level of well no longer changes, the termination time of current level and draining is recorded, calculates the drain discharge of siphon pipe 2, startup is drawn water
Pump 7 draws water, and makes the water level decreasing of sump 6 to 12 meters.Since the soft stickiness soil particle being mixed into water is smaller, it is easy in rainbow
It deposits in suction pipe 2, in drainage procedure 2 siphon of part siphon pipe can terminate, influence the drainage efficiency of soft soil foundation 9, need
Start air charging system 8 to dredge siphon pipe, makes 9 siphon drainage normal operation of soft soil foundation.When the siphon pipe for having 30% or more quantity
When flow in 2 is slack, gas cylinder B 82 is squeezed, so that citric acid solution is passed through diversion pipe 83 and flows into gas cylinder A 81, citric acid
Carbon dioxide is generated with reaction of sodium bicarbonate, carbon dioxide enters gas cylinder B 82, gas cylinder A 81 and gas cylinder B 82 by branch pipe 87
In air pressure reach balance, when pressure gauge 84 is shown as 200kpa, open valve C 86, gas is filled with sump 6, causes to collect
Liquid level generates fierce concussion in well 6, and the variation of Wave crest and wave trough formula is presented in pressure in siphon pipe 2, and pressure change pushes in siphon pipe 2
Flow flows, and the bury particle in the siphon pipe 2 that siphon is interrupted is discharged, and achievees the effect that dredge silting siphon pipe 2.Inflation
After gas stream goes out gas cylinder A 81 in the process, 81 pressure of gas cylinder A reduces, and citric acid solution is pressed into gas cylinder A by diversion pipe 83
81, continuing to react generates gas, ensures that gas continually enters sump 6, after siphon pipe 2 is dredged, closes valve C
86.The sodium bicarbonate solution of gas cylinder A81 is 500 grams of sodium bicarbonates and 2 liters of water mixing, and the citric acid solution of gas cylinder B82 is 500 grams
Citric acid and 1 kilogram of water mixing, according to chemical reaction equation；3NaHCO3+C6H8O7=C6H5O7Na3+3CO2+3H2O, sodium bicarbonate
After being reacted completely with citric acid, under room temperature, normal pressure, 133 liters of carbon dioxide can be generated.Every time to soft soil foundation drainage system into
After row maintenance by gas pressuriztion, sodium bicarbonate is supplemented into gas cylinder A 81, citric acid is supplemented into gas cylinder B 82.
Claims (1)
1. a kind of maintenance by gas pressuriztion formula soft soil foundation drainage system, which is characterized in that including plastic draining board 1, plate boots 4, siphon pipe
2, sump 6, raceway groove 3, preloading 5, suction pump 7, air charging system 8, air charging system include gas cylinder A 81, gas cylinder B 82, diversion pipe
83, branch pipe 87, pressure gauge 84, gas-guide tube 85, valve C 86, gas cylinder A 81 fill sodium bicarbonate solution, and gas cylinder B 82 fills lemon
Lemon acid solution is connected between gas cylinder A 81 and gas cylinder B 82 by diversion pipe 83, the both ends of diversion pipe 83 be all located at liquid level hereinafter,
Pressure gauge 84 is equipped among diversion pipe 83, branch pipe 87 is connected on diversion pipe 83, and the air inlet of branch pipe 87 is more than liquid level, air guide
The arrival end of pipe 85 is placed within gas cylinder A 81, and more than liquid level, the outlet end of gas-guide tube 85 is placed in the arrival end of gas-guide tube 85
6 bottom of sump is in liquid level hereinafter, valve C 86 is mounted on gas-guide tube 85；Raceway groove 3, raceway groove are excavated in soft soil foundation 9
Several plastic draining boards 1 are inserted into 3,1 insertion depth of plastic draining board is 12 meters, the bottom end mounting plate boots of plastic draining board 1
4, the water inlet of siphon pipe 2 is inserted into plastic draining board 1, and the water outlet of siphon pipe 2 is placed in sump 6,2 water outlet of siphon pipe
Elevation be less than 2 water inlet of siphon pipe elevation, sump 6 be arranged near soft soil foundation 9,6 depth of sump be 16 meters, take out
Water pump 7 is placed on outside sump 6, and preloading 5 is placed on 9 surface of soft soil foundation, and a diameter of 4mm of the siphon pipe is described
1-3 root siphon pipes, a diameter of 10mm of the gas-guide tube are inserted into plastic draining board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810333941.5A CN108330946A (en) | 2018-04-13 | 2018-04-13 | A kind of maintenance by gas pressuriztion formula soft soil foundation drainage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810333941.5A CN108330946A (en) | 2018-04-13 | 2018-04-13 | A kind of maintenance by gas pressuriztion formula soft soil foundation drainage system |
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| Publication Number | Publication Date |
|---|---|
| CN108330946A true CN108330946A (en) | 2018-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810333941.5A Withdrawn CN108330946A (en) | 2018-04-13 | 2018-04-13 | A kind of maintenance by gas pressuriztion formula soft soil foundation drainage system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110984197A (en) * | 2019-11-25 | 2020-04-10 | 浙江大学 | Device and method for starting siphon drainage by pressurization |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2719085A1 (en) * | 1994-04-21 | 1995-10-27 | Ress Groupe | Device for regulating the operation of a drain-siphon. |
| CN102587338A (en) * | 2012-03-22 | 2012-07-18 | 长沙理工大学 | Blockage dredging and draining enhancement process for drain holes of side slopes and device for blockage dredging and draining enhancement process |
| CN103628465A (en) * | 2013-11-15 | 2014-03-12 | 河海大学 | Device and method for circulating water discharging blocking prevention through exhausting and inflating sludge |
| CN106592544A (en) * | 2016-11-28 | 2017-04-26 | 浙江大学 | Device for assisting in side slope water drainage through wave energy |
| CN107326891A (en) * | 2017-07-14 | 2017-11-07 | 浙江大学 | A kind of soft foundation discharge fixing system and method |
-
2018
- 2018-04-13 CN CN201810333941.5A patent/CN108330946A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2719085A1 (en) * | 1994-04-21 | 1995-10-27 | Ress Groupe | Device for regulating the operation of a drain-siphon. |
| CN102587338A (en) * | 2012-03-22 | 2012-07-18 | 长沙理工大学 | Blockage dredging and draining enhancement process for drain holes of side slopes and device for blockage dredging and draining enhancement process |
| CN103628465A (en) * | 2013-11-15 | 2014-03-12 | 河海大学 | Device and method for circulating water discharging blocking prevention through exhausting and inflating sludge |
| CN106592544A (en) * | 2016-11-28 | 2017-04-26 | 浙江大学 | Device for assisting in side slope water drainage through wave energy |
| CN107326891A (en) * | 2017-07-14 | 2017-11-07 | 浙江大学 | A kind of soft foundation discharge fixing system and method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110984197A (en) * | 2019-11-25 | 2020-04-10 | 浙江大学 | Device and method for starting siphon drainage by pressurization |
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Application publication date: 20180727 |