CN109900599A - A kind of method slurry penetration film forming experimental provision and its measure slurry penetration performance - Google Patents
A kind of method slurry penetration film forming experimental provision and its measure slurry penetration performance Download PDFInfo
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- CN109900599A CN109900599A CN201910302270.0A CN201910302270A CN109900599A CN 109900599 A CN109900599 A CN 109900599A CN 201910302270 A CN201910302270 A CN 201910302270A CN 109900599 A CN109900599 A CN 109900599A
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Abstract
The invention discloses a kind of slurry penetrations into membrane pilot unit contained, comprising: system of subject and compression system；System of subject includes permeable member and frame parts；The middle part of frame parts is equipped with crossbeam；Permeable member has permeation chamber, and to place test soil layer and mud, the lower cover of permeable member is fixed on the upper side of crossbeam, and lower cover is equipped with dehydration hole, and the upper end cover of permeable member is equipped with venthole；The lower section in the downside dehydration hole of crossbeam is equipped with liquid measure measurer；Compression system includes pressing member, tracheae and pressure regulator；Pressing member is connected by the venthole of tracheae and permeable member, and pressure regulator is set on tracheae.The slurry penetration is simple at membrane pilot unit contained structure, easy to use, definite functions, can effectively measure thickness, drainage amount that mud forms a film to stratum infiltration, realizes the optimization of laminated reason simulated mud over the ground.The invention also discloses a kind of methods for measuring slurry penetration performance.
Description
Technical field
The present invention relates in the fields such as city underground, the tunnel across Jiang Yuehai, using mud in slurry-water balance type shield mode
To the permeance property on stratum, more particularly to a kind of slurry penetration at the side of membrane pilot unit contained and its measurement slurry penetration performance
Method.
Background technique
In recent years, slurry balance shield is used widely in wearing the complicated geological environments such as Jiang Yuehai.Mud and water balance
Shield balances the Water And Earth Pressures on excavation face stratum by adjusting the mud pressure in Pressure chamber, since mud pressure is greater than stratum
Pore water pressure, the fine particle in mud infiltration can form fluid-tight mud film into stratum under differential pressure action, to rise
To the effect of good ground.Therefore, mud is directly related to the steady of slurry balance shield driving to the infiltration film forming characteristics on stratum
It is qualitative.
Generally, pass through its adaptation to Different Strata of the parameters such as the specific gravity of mud itself, viscosity, filter loss subjective assessment
Property.Therefore, exist for the simulated mud of Different Strata and get sth into one's head, cause mud unsatisfactory to the osmotic effect on stratum.
Mud directly translates into mud to the osmotic effect difference on stratum or can not penetrate into stratum, or infiltration number of dropouts is excessive, to be formed
Mudcake it is too thin, intensity is too low, is unable to maintain that excavation face stability.Therefore, for Different Strata condition, rational evaluation mud pair
The permeability on stratum is of great significance.
Currently, it is domestic huger to the testing equipment on slurry penetration stratum, it completes slurry penetration stratum and obtains multiple groups
The effect on slurry penetration stratum takes a long time, and leads to the related conclusions and few to form a film about slurry penetration.
Therefore, it how to be quickly obtained the permeance property of mud, is those skilled in the art's technical problem urgently to be solved.
Summary of the invention
In order to solve the above technical problems, the object of the present invention is to provide a kind of slurry penetrations into membrane pilot unit contained and its measurement
The method of slurry penetration performance.
The application provides a kind of slurry penetration into membrane pilot unit contained, comprising: system of subject and compression system；
The system of subject includes permeable member and frame parts；The middle part of the frame parts is equipped with crossbeam；The osmosizing portion
Part has permeation chamber, is fixed on the upside of the crossbeam to place test soil layer and mud, the lower cover of the permeable member
Face, the lower cover are equipped with dehydration hole, and the upper end cover of the permeable member is equipped with venthole；The dehydration of the downside of the crossbeam
The lower section in hole is equipped with liquid measure measurer；
The compression system includes pressing member, tracheae and pressure regulator；The pressing member by the tracheae with it is described
The venthole of permeable member connects, and the pressure regulator is set on the tracheae.
Optionally, the side wall of the permeable member is transparent tube, and the transparent tube is equipped with graduation mark.
Optionally, the system of subject further includes handle, and the handle passes through described in the upper beam fastening of the frame parts
The upper end cover of permeable member.
Optionally, the lower cover of the permeable member has circle connected in star, is equipped with gasket in the circle connected in star
And cooperate with the lower end of the transparent tube.
Optionally, permeable stone, test soil layer and test mud are sequentially placed in the transparent tube.
Optionally, the pressure regulator includes first pressure gauge and pressure reducer, is subtracted described in the first pressure gauge measurement
The gas outlet of the outlet pressure of depressor, the pressure reducer is connected to by the tracheae with the venthole of the permeable member,
One end that the tracheae is connect with the venthole is equipped with breather valve.
Optionally, the pressing member includes inflator and second pressure gauge, is inflated described in the second pressure gauge measurement
The gas outlet of the outlet pressure of cylinder, the inflator is connected to by the tracheae with the air inlet of the pressure reducer.
Present invention also provides a kind of methods for measuring slurry penetration performance, use slurry penetration described in any of the above embodiments
At membrane pilot unit contained, comprising the following steps:
Step S1: permeable stone, test soil layer and test mud are sequentially placed in the permeation chamber of the permeable member of system of subject；
Step S2: connecting the system of subject and compression system, so that the pressurized handgrip of the compression system is in free position,
Convenient for pressurizeing to the permeation chamber；
Step S3: the pressure value of the pressure regulator of the compression system is set；
Step S4: the permeation chamber filters out water in recording test time.
Optionally, step S1 further comprises that the permeation chamber is made of the transparent tube of line with a scale, described transparent
Permeable stone, test soil layer and test mud are sequentially placed in cylinder.
Optionally, step S4 further comprises, when the pressure of the pressure regulator is instantaneously slightly decreased, or hears
Measurement, which filters out in the container of water, air inlet sound, or start recording time when filtering out water droplet；And record recording test time
The permeation chamber in section filters out water.
Technical solution of the present invention has the advantage that compared with prior art
The slurry penetration is simple at membrane pilot unit contained structure, easy to use, definite functions, can effectively measure mud and seep to stratum
The thickness that forms a film thoroughly, drainage amount realize the optimization of laminated reason simulated mud over the ground.
Detailed description of the invention
The drawings are intended to provide a further understanding of the invention, and constitutes part of specification, with following tool
Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.
Fig. 1 is slurry penetration provided by the present invention into a kind of structural schematic diagram of specific embodiment of membrane pilot unit contained；
Wherein, the Detailed description of the invention in Fig. 1 and the corresponding relationship between component names are as follows:
Upper end cover 1；Transparent tube 2；
Frame parts 3；Handle 4；
Breather valve 5；Tracheae 6；
First pressure gauge 7；Pressure reducer 8；
Inflator 9；Second pressure gauge 10；
Permeable stone 11；Graduated cylinder 12；
Gasket 13.
Specific embodiment
Below in conjunction with attached drawing, detailed description of the preferred embodiments.It should be understood that this place is retouched
The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
Referring to FIG. 1, Fig. 1 is slurry penetration provided by the present invention into a kind of knot of specific embodiment of membrane pilot unit contained
Structure schematic diagram.
In a kind of specific embodiment, the present invention provides a kind of slurry penetrations into membrane pilot unit contained, comprising: main body
System and compression system；
The system of subject includes permeable member and frame parts 3；The middle part of the frame parts 3 is equipped with crossbeam；The infiltration
Component has permeation chamber, is fixed on the upper of the crossbeam to place test soil layer and mud, the lower cover of the permeable member
Side, the lower cover are equipped with dehydration hole, and the upper end cover 1 of the permeable member is equipped with venthole；Described in the downside of the crossbeam
The lower section in dehydration hole is equipped with liquid measure measurer；
The compression system includes pressing member, tracheae 6 and pressure regulator；The pressing member passes through the tracheae 6 and institute
The venthole connection of permeable member is stated, the pressure regulator is set on the tracheae 6.
The experimental provision is pressurizeed by permeation chamber of the compression system to system of subject, and pressure acts on test soil layer and mud
On, there will be water to ooze out from the lower cover of permeable member, by liquid measure measurer, can obtain and ooze out water under certain pressure,
And then the permeance property of mud can be obtained.
The slurry penetration is simple at membrane pilot unit contained structure, easy to use, definite functions, can effectively measure mud over the ground
The thickness of layer infiltration film forming, drainage amount realize the optimization of laminated reason simulated mud over the ground.
In a kind of preferred embodiment, the side wall of the permeable member is transparent tube 2, and the transparent tube 2, which is equipped with, to be carved
Spend line.
The experimentation of the experimental provision can be observed by transparent tube 2, it can be seen that the infiltration of test soil layer and mud
Process, meanwhile, in experimentation and after experiment, the thickness value of layer of sand, mud and mud film can be read in real time, is more convenient for obtaining reality
Test result.
Specifically, the system of subject further includes handle 4, the upper beam that the handle 4 passes through the frame parts fastens institute
State the upper end cover of permeable member.
The lower cover of the permeable member has circle connected in star, in the circle connected in star equipped with gasket 13 and with institute
State the lower end cooperation of transparent tube 2.
In experimentation, permeable stone, test soil layer and test mud are sequentially placed in the transparent tube 2.
Transparent tube 2 is placed between upper end cover and lower cover, is placed gasket and is guaranteed sealing, and the handle for passing through framework upper
4 tighten sealing；The lower cover can maintain the stability of transparent tube 2 and layer of sand etc. in experimentation.
In above-mentioned each specific embodiment, the pressure regulator includes first pressure gauge 7 and pressure reducer 8, and described
One pressure gauge 7 measures the outlet pressure of the pressure reducer 8, and the gas outlet of the pressure reducer 8 passes through the tracheae 6 and the infiltration
The venthole of component is connected to, and one end that the tracheae 6 is connect with the venthole is equipped with breather valve 5.
In further specific embodiment, the pressing member includes inflator 9 and second pressure gauge 10, and described second
Pressure gauge 10 measures the outlet pressure of the inflator 9, and the gas outlet of the inflator 9 passes through the tracheae 6 and the decompression
The air inlet of device 8 is connected to.
Pressing member provides pressure source using inflator 9, is adjusted by pressure reducer 8 to test pressure, has ensured and tested
The stability of pressure in journey.
In addition to above-mentioned slurry penetration is at membrane pilot unit contained, present invention also provides a kind of sides for measuring slurry penetration performance
Method has used slurry penetration described in the various embodiments described above at membrane pilot unit contained, comprising the following steps:
Step S1: permeable stone, test soil layer and test mud are sequentially placed in the permeation chamber of the permeable member of system of subject；
Step S2: connecting the system of subject and compression system, so that the pressurized handgrip of the compression system is in free position,
Convenient for pressurizeing to the permeation chamber；
Step S3: the pressure value of the pressure regulator of the compression system is set；
Step S4: the permeation chamber filters out water in recording test time.
It is pressurizeed by permeation chamber of the compression system to system of subject, pressure acts on test soil layer and mud, will there is water
It is oozed out from the lower cover of permeable member, can measure and ooze out water under certain pressure, and then the permeance property of mud can be obtained.
Specifically, step S1 further comprises, the permeation chamber is made of the transparent tube of line with a scale, described transparent
Permeable stone, test soil layer and test mud are sequentially placed in cylinder.
In further specific embodiment, step S4 further comprises, when the pressure of the pressure regulator is instantaneous
It is slightly decreased, perhaps hears that measurement filters out in the container of water start recording time when having air inlet sound or filtering out water droplet；And
Record the permeation chamber in recording test time section filters out water.
Embodiment: Fig. 1 is please referred to；
At membrane pilot unit contained, system of subject includes handle 4, upper end cover 1, gasket, transparent tube 2 for a kind of slurry penetration, and
It is fixed on the lower cover of 3 crossbeam of frame parts, there are dehydration hole, dehydration hole lower sections to place graduated cylinder 12 or measuring cup at lower cover middle part；
There is circle connected in star in lower cover, circle shape gasket 13, transparent tube 2, upper end cover 1, handle 4 are successively put in slot；In transparent tube 2 according to
It is secondary that layer of sand and mud are housed, the infiltration for realizing mud into test sand of being pressurizeed by compression system to mud face layer.Compression train
System includes inflator 9, pressure gauge, pressure reducer 8, tracheae 6, breather valve 5.Inflator 9 provides gas source, makes by adjusting pressure reducer 8
6 air pressure of tracheae reaches test pressure.
The step of measuring slurry penetration film forming thickness at membrane pilot unit contained using above-mentioned slurry penetration is as follows:
A, inflator 9 is placed in appropriate location, tracheae 6 is connected to pressure reducer 8 and breather valve 5, checks that 5 handle of breather valve is threaded to certainly
By position；
B, it is sequentially placed gasket 13, transparent tube 2 on the lower cover of 3 crossbeam of frame parts, permeable stone is placed in 2 bottom of transparent tube
Portion is successively laid with layer of sand thereon, and the mud of preparation is poured into transparent tube 2 to regulation scale；
C, it is sequentially placed gasket 13, upper end cover on transparent tube 2, and is screwed by handle 4；
D, tracheae 6 is connect with breather valve 5, upper end cover air inlet, and closes breather valve 5；
E, graduated cylinder 12 is placed in below lower cover dehydration hole；
E, air pressure is applied by inflator 9 and is greater than test pressure；
F, breather valve 5 is opened, slowly rotates 8 handle of pressure reducer clockwise, observation pressure gauge instruction makes it stable and testing
Pressure value；
G, it when pressure gauge is instantaneously slightly decreased, perhaps hears in graduated cylinder 12 to have air inlet sound or see first and drip when flowing out,
The start recording time；
H, the arrival testing time removes graduated cylinder 12 immediately, while breather valve 5 being closed, cutting transparent tube 2 and gas source access, emptying
Air in cylinder；
I, by the graduation mark on transparent tube 2, mud film thickness is read；
J, the amount that water is filtered out in graduated cylinder 12 is read.
Above to slurry penetration provided by the present invention at membrane pilot unit contained and its measure slurry penetration performance method into
It has gone and has been discussed in detail.Used herein a specific example illustrates the principle and implementation of the invention, the above implementation
The explanation of example is merely used to help understand method and its core concept of the invention.It should be pointed out that for the general of the art
, without departing from the principle of the present invention, can be with several improvements and modifications are made to the present invention for logical technical staff, this
A little improvement and modification are also fallen within the protection scope of the claims of the present invention.
Claims (10)
1. a kind of slurry penetration is at membrane pilot unit contained characterized by comprising system of subject and compression system；
The system of subject includes permeable member and frame parts；The middle part of the frame parts is equipped with crossbeam；The osmosizing portion
Part has permeation chamber, is fixed on the upside of the crossbeam to place test soil layer and mud, the lower cover of the permeable member
Face, the lower cover are equipped with dehydration hole, and the upper end cover of the permeable member is equipped with venthole；The dehydration of the downside of the crossbeam
The lower section in hole is equipped with liquid measure measurer；
The compression system includes pressing member, tracheae and pressure regulator；The pressing member by the tracheae with it is described
The venthole of permeable member connects, and the pressure regulator is set on the tracheae.
2. slurry penetration according to claim 1 is at membrane pilot unit contained, which is characterized in that the side wall of the permeable member is
Transparent tube, the transparent tube are equipped with graduation mark.
3. slurry penetration according to claim 2 is at membrane pilot unit contained, which is characterized in that the system of subject further includes hand
Handle, the upper beam that the handle passes through the frame parts fasten the upper end cover of the permeable member.
4. slurry penetration according to claim 3 is at membrane pilot unit contained, which is characterized in that the permeable member it is described under
End cap has circle connected in star, and gasket is equipped in the circle connected in star and is cooperated with the lower end of the transparent tube.
5. slurry penetration according to claim 4 is at membrane pilot unit contained, which is characterized in that be sequentially placed in the transparent tube
Permeable stone, test soil layer and mud.
6. slurry penetration according to any one of claims 1 to 5 is at membrane pilot unit contained, which is characterized in that the pressure tune
Saving device includes first pressure gauge and pressure reducer, and the first pressure gauge measures the outlet pressure of the pressure reducer, the pressure reducer
Gas outlet be connected to the venthole of the permeable member by the tracheae, the tracheae is connect with the venthole
One end is equipped with breather valve.
7. slurry penetration according to claim 6 is at membrane pilot unit contained, which is characterized in that the pressing member includes inflating
Cylinder and second pressure gauge, the second pressure gauge measure the outlet pressure of the inflator, and the gas outlet of the inflator passes through
The tracheae is connected to the air inlet of the pressure reducer.
8. a kind of method for measuring slurry penetration performance, which is characterized in that use the described in any item mud of claim 1 to 7
Permeate into membrane pilot unit contained, comprising the following steps:
S1: permeable stone, test soil layer and test mud are sequentially placed in the permeation chamber of the permeable member of system of subject；
S2: connecting the system of subject and compression system, so that the pressurized handgrip of the compression system is in free position, is convenient for
It pressurizes to the permeation chamber；
S3: the pressure value of the pressure regulator of the compression system is set；
S4: the permeation chamber filters out water in recording test time.
9. the method for measurement slurry penetration performance according to claim 8, which is characterized in that further wrapped in step S1
It includes, the permeation chamber is made of the transparent tube of line with a scale, and permeable stone, test soil layer and examination are sequentially placed in the transparent tube
Test mud.
10. the method for measurement slurry penetration performance according to claim 8, which is characterized in that further wrapped in step S4
It includes, when the pressure of the pressure regulator is instantaneously slightly decreased, or hears that measurement filters out in the container of water and has air inlet sound,
Or start recording time when filtering out water droplet；And record the permeation chamber in recording test time section filters out water.
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| CN110146418A (en) * | 2019-06-19 | 2019-08-20 | 盾构及掘进技术国家重点实验室 | A kind of slurry penetration film forming simple experimental device and method |
| CN110243726A (en) * | 2019-05-31 | 2019-09-17 | 山东科技大学 | A kind of coal containing methane gas wetting of particulates characteristic test device and test method |
| CN110895233A (en) * | 2019-12-16 | 2020-03-20 | 西南交通大学 | Dynamic penetration film forming test device and measurement method for slurry balance shield slurry |
| CN112082919A (en) * | 2020-08-21 | 2020-12-15 | 西南交通大学 | Device for testing permeability of graded broken stone-high polymer grouting solidified body |
| CN112683746A (en) * | 2020-12-04 | 2021-04-20 | 山东大学 | Device and method for measuring effective stress conversion rate of slurry film forming |
| CN113640192A (en) * | 2021-08-16 | 2021-11-12 | 天津大学 | Visual penetration test device and method for simulating muddy water construction |
| CN113959924A (en) * | 2021-10-27 | 2022-01-21 | 中铁二十局集团第一工程有限公司 | Slurry horizontal permeability test device and method considering overburden load on stratum |
| CN115356250A (en) * | 2022-07-04 | 2022-11-18 | 华设设计集团股份有限公司 | High-permeability stratum mud proportioning experimental device and method |
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Application publication date: 20190618 |