CN109211736A - The test method of sandy pear variety slip casting dilation angle under a kind of simulation circumstance of flowing water - Google Patents
The test method of sandy pear variety slip casting dilation angle under a kind of simulation circumstance of flowing water Download PDFInfo
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- CN109211736A CN109211736A CN201811286672.8A CN201811286672A CN109211736A CN 109211736 A CN109211736 A CN 109211736A CN 201811286672 A CN201811286672 A CN 201811286672A CN 109211736 A CN109211736 A CN 109211736A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N13/00—Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
- G01N13/04—Investigating osmotic effects
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Abstract
The invention discloses a kind of test methods of sandy pear variety slip casting dilation angle under simulation circumstance of flowing water, belong to injecting paste material performance test apparatus technical field, which comprises the following steps: the gravel sample of a, collection site are filled into stainless steel cabinet；B, Grouting Pipe and water injection pipe are inserted vertically into gravel sample respectively, the oil pressure relief of regulation relief valve；C, grouting pump and water injecting pump are separately turned on；D, seepage flow characteristics of the observation grouting serous fluid in gravel sample；E, after slip casting terminates 24 hours, gravel sample is taken out, observes diffusion characteristic of the grouting serous fluid in gravel sample, measurement grouting serous fluid axially diffuses distance in gravel sample.The present invention realizes the visual Simulation of grouting serous fluid diffusion process in sandy pear variety under circumstance of flowing water, can quantitative description and analysis circumstance of flowing water under Diffusion Law of the slurries in sandy pear variety, it is good with circumstance of flowing water stability, the high feature of slurries diffusion parameter accuracy.
Description
Technical field
The present invention relates to sand under injecting paste material performance test apparatus technical field more particularly to a kind of simulation circumstance of flowing water
The test method of gravel stratum slip casting dilation angle.
Background technique
By continuing to develop, slurry injection technique has been achieved with rapid progress, and is developing progressively professional very strong for one
The branches of learning and subjects.But since Grouting engineering is concealed work, the diffusion process of injecting paste material in the earth formation is hidden, the expansion of slurries
It is extremely complex to dissipate form.Due to being difficult to obtain accurate grouting parameter, certain difficulty is brought to Grouting engineering design.Sandy pear variety
Widely distributed in China, more and more underground engineerings have touched sandy pear variety, and utilize requirement to sandy pear variety
Higher and higher, the engineering for carrying out injecting treatment is also more and more.However due to the complexity of sandy pear variety this body structure and changeable
Property, and the gap of sandy pear variety is larger, and being obstructed when slurries flow is smaller, and flow regime randomness is larger, therefore to slurries
Dynamic diffusion process in sandy pear variety is observed that there are extreme difficulties.
Since the slurry injection technique of sandy pear variety is still not perfect in theoretical side research, the Grouting engineering design parameter of progress is equal
It establishes under ideal assumed condition, is very different with the practical flow characteristics of engineering.Due to lacking the sandy pear variety of comparatively perfect
The guidance of slip casting diffusion theory, there are biggish blindness for the design and construction of sandy pear variety slurry injection technique.At present by building
The model investigation of the grouting serous fluid dilation angle of sandy pear variety is relatively under systems modelling study of platform circumstance of flowing water
It is few.
Publication No. CN 105136641A, publication date are that the Chinese patent literature on December 09th, 2015 discloses one kind
Simulate the model equipment of osmotic grouting diffusion test under river channels, it is characterised in that: including media filler device, slip casting mould
Block, water injection module and grouting parameter acquisition device；The slip casting module includes the note at the top of the media filler device
Hole is starched, the injected hole is connect by Grouting Pipe with grouting pump；The water injection module is included in the media filler device side wall
The water filling port opened up, the water filling port are connect by water injection pipe with priming apparatus；The grouting parameter acquisition device is set to described
On the side wall of media filler device；Wing plate is equipped in the top and bottom of the media filler device；By the grouting pump and
The priming apparatus acquires related ginseng to the media filler unit simulation slip casting and water filling, and using grouting parameter acquisition device
Number, to realize the osmotic grouting diffusion test under simulation river channels.
Using above patent document as the prior art of representative, there are following defects: media filler device can not be opened, can only
Slurries are observed in the diffusion of dielectric surface by side wall, and can not obtain slurries in the diffusion characteristic of media interior；Device can only
Realize the simulation of ultra-fine injecting paste material, it can not be using coarse granules injecting paste materials such as cement.Sensor is only using longitudinal equidistant
Arrangement, and the pressure that slurries axially diffuse range can not be obtained；Device periphery is not provided with overflow port, can not simulate practical slip casting
Body strata pressure.
Summary of the invention
The present invention in order to overcome the defects of the prior art described above, provides sandy pear variety slip casting under a kind of simulation circumstance of flowing water and expands
The test method of radius is dissipated, the present invention uses the actual gritting material of removable semi-closed type stainless steel cabinet and scene,
In conjunction with dynamic water flow, reservoir stress condition is recycled, grouting serous fluid diffusion process in sandy pear variety under circumstance of flowing water is realized
Visual Simulation, can quantitative description and analysis circumstance of flowing water under Diffusion Law of the slurries in sandy pear variety, significantly reduce
The design error of grout spreading range in engineering design, and good control can be carried out to flow, pressure, stress, have dynamic
Water environment stability is good, the high feature of slurries diffusion parameter accuracy.
The present invention is achieved through the following technical solutions:
The test method of sandy pear variety slip casting dilation angle under a kind of simulation circumstance of flowing water, which comprises the following steps:
A, the gravel sample of collection site, and a point multilayer is filled into the stainless steel cabinet of experimental rig, passes through expansion type screw
Filling thickness is controlled with sand block plate；
B, Grouting Pipe and water injection pipe are inserted vertically into gravel sample respectively, according to the reservoir stress value regulation relief valve of simulation
Oil pressure relief；
C, it is separately turned on grouting pump and water injecting pump, applies grouting pressure until pressure reaches setting value, grouting serous fluid is through Grouting Pipe
Into in gravel sample, apply water injection pressure until hydraulic pressure reaches setting value, waterfront economy water pipe enters in gravel sample；
D, seepage flow spy of the grouting serous fluid in gravel sample is observed by the saturating slurry hole in overflow valve and sand block plate during test
Sign；
E, after slip casting terminates 24 hours, Grouting Pipe and water injection pipe are extracted, opens stainless steel cabinet, the gravel examination after taking out slip casting
Sample, observes diffusion characteristic of the grouting serous fluid in gravel sample, and measurement grouting serous fluid axially diffuses distance in gravel sample.
In the step b, the oil pressure relief of overflow valve is 3~10MPa.
In the step c, the grouting pressure of grouting pump is 5~10MPa, and the water injection pressure of water injecting pump is 1~5MPa.
The experimental rig includes bracket and the stainless steel cabinet for storing gravel sample, and stainless steel cabinet is fixed on branch
It further include grouting pump and water injecting pump on frame, stainless steel cabinet includes the first front end baffle, the second front end baffle, the first semicircle
Hemizygous pipe, the second semicircle hemizygous pipe and rear end cap, the first semicircle hemizygous pipe and the second detachable company of semicircle hemizygous pipe
It connects, the first front end baffle is fixedly connected with the front end of the first semicircle hemizygous pipe, and the second front end baffle is semicircle hemizygous with second
The front end of pipe is fixedly connected, and rear end cap is solid with the rear end of the rear end of the first semicircle hemizygous pipe and the second semicircle hemizygous pipe respectively
It is fixed to connect, it is provided with sand block plate in stainless steel cabinet, sand block plate is connected with expansion type screw on rear end cap, sand block plate, stretches
Contracting formula screw rod runs through rear end cap, is provided with injected hole and water injection hole in stainless steel cabinet, Grouting Pipe, Grouting Pipe are connected on injected hole
It is connect with grouting pump, water injection pipe is connected on water injection hole, water injection pipe is connect with water injecting pump.
Multiple overflow holes are provided in the stainless steel cabinet, overflow hole is axially distributed along stainless steel cabinet, any two phase
The distance between adjacent overflow hole is identical, and overflow pipe is fixedly connected on overflow hole, is fixed with overflow valve on overflow pipe.
The sand block plate is stainless steel plate, is provided with multiple slurry holes on sand block plate, multiple slurry holes are annularly arranged in gear
On sand plate.
The expansion type screw includes multiple articulateds and Duo Gen seamless steel pipe, and seamless steel pipe is slidably connected by articulated.
The grouting pump and water injecting pump are variable pump, and grouting pressure table is provided in Grouting Pipe, is provided on water injection pipe
Water injection pressure table, Grouting Pipe include circulation section and slip casting section, and slip casting section is floral tube, and the section that circulates and slip casting section are integrally formed.
It is provided with rubber mat plate between described first semicircle hemizygous pipe and the second semicircle hemizygous pipe, rubber mat plate is not along
The axial of rust steel cabinet is fixed with lock ring in stainless steel cabinet intermediate arrangement, the outer circumferential walls of stainless steel cabinet.
The bracket includes support base and four universal wheels, and four universal wheels are separately fixed at four angles of support base bottom
On.
The aperture of the injected hole is 25 millimeters, and the aperture of water injection hole is 30 millimeters.
The first floor and the second floor, the first floor and the second floor arranged crosswise, rear end are fixed on the rear end cap
It covers and is provided with multiple peepholes.
Beneficial effects of the present invention are mainly manifested in following aspect:
One, of the invention, the gravel sample of a, collection site, and a point multilayer is filled into the stainless steel cabinet of experimental rig, is passed through
Expansion type screw and sand block plate control filling thickness；B, Grouting Pipe and water injection pipe are inserted vertically into gravel sample respectively, according to
The oil pressure relief of the reservoir stress value regulation relief valve of simulation；C, it is separately turned on grouting pump and water injecting pump, it is straight to apply grouting pressure
Reach setting value to pressure, grouting serous fluid enters in gravel sample through Grouting Pipe, applies water injection pressure until hydraulic pressure reaches setting
Value, waterfront economy water pipe enter in gravel sample；D, slip casting is observed by the saturating slurry hole in overflow valve and sand block plate during test
Seepage flow characteristics of the slurries in gravel sample；E, after slip casting terminates 24 hours, Grouting Pipe and water injection pipe are extracted, opens stainless steel case
Body, the gravel sample after taking out slip casting observe diffusion characteristic of the grouting serous fluid in gravel sample, measure grouting serous fluid in gravel
Distance is axially diffused in sample, by using the actual gravel material of removable semi-closed type stainless steel cabinet and scene
Material realizes grouting serous fluid diffusion process in sandy pear variety under circumstance of flowing water in conjunction with dynamic water flow, reservoir stress condition is recycled
Visual Simulation, survey dilation angle of the slurries in gravel sample by opening stainless steel cabinet, being capable of quantitative description
With Diffusion Law of the slurries in sandy pear variety under analysis circumstance of flowing water, grout spreading range in engineering design is significantly reduced
Design error, and good control can be carried out to flow, pressure, stress, have circumstance of flowing water stability good, slurries diffusion ginseng
The high feature of number accuracy.
Two, of the invention, in step b, the oil pressure relief of overflow valve is 3~10MPa, using the overflow pressure of this particular range
Power has allowable stress height, the big advantage of the controllable range of strata pressure.
Three, of the invention, in step c, the grouting pressure of grouting pump is 5~10MPa, the water injection pressure of water injecting pump is 1~
5MPa, the controllable range of grouting pressure is big, being capable of effectively simulated high-pressure slip casting.
Four, of the invention, experimental rig includes bracket and the stainless steel cabinet for storing gravel sample, and stainless steel cabinet is solid
It is scheduled on bracket, further includes grouting pump and water injecting pump, stainless steel cabinet includes the first front end baffle, the second front end baffle, first
Semicircle hemizygous pipe, the second semicircle hemizygous pipe and rear end cap, the first semicircle hemizygous pipe and the second semicircle hemizygous pipe are removable
Formula connection is unloaded, the first front end baffle is fixedly connected with the front end of the first semicircle hemizygous pipe, the second front end baffle and the second semicircle
The front end of shape hemizygous pipe is fixedly connected, rear end cap respectively with the rear end of the first semicircle hemizygous pipe and the second semicircle hemizygous pipe
Rear end is fixedly connected, and sand block plate is provided in stainless steel cabinet, and sand block plate is connected with telescopic spiral shell on rear end cap, sand block plate
Bar, expansion type screw run through rear end cap, are provided with injected hole and water injection hole in stainless steel cabinet, are connected with Grouting Pipe on injected hole,
Grouting Pipe is connect with grouting pump, and water injection pipe is connected on water injection hole, and water injection pipe is connect with water injecting pump, using removable hemizygous pipe
Formula stainless steel cabinet, convenient for opening dilation angle of the cabinet actual measurement slurries in gritting material body, quantitative description and the dynamic water of analysis
Diffusion Law of the slurries in sandy pear variety under environment, significantly reduces the design error of grout spreading range in engineering design；
It is able to bear high-pressure slip-casting, highest grouting pressure is up to 10MPa, and highest water injection pressure is up to 5MPa；Injecting paste material does not have particle
The limitation of partial size thickness, universality are strong；The feature that entire experimental rig has compressive resistance big, easy to operate.
Five, of the invention, multiple overflow holes are provided in stainless steel cabinet, overflow hole is axially distributed along stainless steel cabinet, arbitrarily
The distance between two adjacent overflow holes are identical, and overflow pipe is fixedly connected on overflow hole, is fixed with overflow valve on overflow pipe, lead to
Overflow valve is overregulated, can be realized the adjusting to injecting cement paste surrounding formation stress；With, pressure corresponding with actual formation pressure
Adjustable, be pressurized the characteristics of being evenly distributed.
Six, of the invention, sand block plate is stainless steel plate, is provided with multiple slurry holes, multiple slurry holes cloth annular in shape on sand block plate
It sets on sand block plate, not only compressive strength is high, but also can ensure that slip casting diffusion is smooth, so as to observe grouting serous fluid in real time
Seepage flow characteristics in gravel sample.
Seven, of the invention, expansion type screw includes multiple articulateds and Duo Gen seamless steel pipe, and seamless steel pipe is slided by articulated to be connected
It connects, using effect is good, can smoothly adjust the filling thickness that gravel sample is filled into stainless steel cabinet.
Eight, of the invention, grouting pump and water injecting pump are variable pump, are provided with grouting pressure table in Grouting Pipe, on water injection pipe
Be provided with water injection pressure table, Grouting Pipe includes circulation section and slip casting section, slip casting section be floral tube, the section that circulates and slip casting section one at
Type, grouting pump use variable pump, can freely adjust pump discharge, and water injecting pump uses variable pump, can freely adjust pump flow
Amount and flow velocity, convenient for forming uniform river channels in gravel sample, circumstance of flowing water stability is good.
Nine, of the invention, rubber mat plate, rubber pad are provided between the first semicircle hemizygous pipe and the second semicircle hemizygous pipe
Plate is fixed with lock ring, energy along the axial direction of stainless steel cabinet in stainless steel cabinet intermediate arrangement, the outer circumferential walls of stainless steel cabinet
Sealing intensity is enough further increased, has frictional resistance small, good airproof performance, the high advantage of compressive strength.
Ten, of the invention, bracket includes support base and four universal wheels, and four universal wheels are separately fixed at support base bottom
On four angles, the mobile convenience of entire experimental rig is improved, test operation is more convenient.
11, of the invention, the aperture of injected hole is 25 millimeters, and the aperture of water injection hole is 30 millimeters, using this specific
Injected hole aperture and water injection hole aperture can adapt to the slurry material or dynamic water of high pressure, high flow capacity and high flow rate.
12, of the invention, the first floor and the second floor are fixed on rear end cap, the first floor and the second floor intersect cloth
It sets, multiple peepholes is provided on rear end cap, convenient for observing seepage flow characteristics of the grouting serous fluid in gravel sample in real time.
Detailed description of the invention
The present invention is described in further detail below in conjunction with specification drawings and specific embodiments, in which:
Fig. 1 is the structural schematic diagram of experimental rig of the present invention；
Fig. 2 is the top view of stainless steel cabinet of the present invention；
Fig. 3 is the structural schematic diagram of sand block plate in the embodiment of the present invention 6；
Fig. 4 is the structural schematic diagram of expansion type screw in the embodiment of the present invention 7；
Fig. 5 is the structural schematic diagram of Grouting Pipe in the embodiment of the present invention 7；
Fig. 6 is the left view of stainless steel cabinet of the present invention；
Marked in the figure: 1, bracket, 2, stainless steel cabinet, 3, grouting pump, 4, water injecting pump, the 5, first front end baffle, the 6, second front end
Baffle, the 7, first semicircle hemizygous pipe, the 8, second semicircle hemizygous pipe, 9, rear end cap, 10, sand block plate, 11, expansion type screw,
12, injected hole, 13, water injection hole, 14, Grouting Pipe, 15, water injection pipe, 16, overflow hole, 17, overflow pipe, 18, overflow valve, 19, saturating slurry
Hole, 20, articulated, 21, seamless steel pipe, 22, grouting pressure table, 23, water injection pressure table, 24, circulation section, 25, slip casting section, 26, rubber
Rubber cushion plate, 27, lock ring, 28, support base, 29, universal wheel, the 30, first floor, the 31, second floor, 32, peephole.
Specific embodiment
Embodiment 1
The test method of sandy pear variety slip casting dilation angle under a kind of simulation circumstance of flowing water, comprising the following steps:
A, the gravel sample of collection site, and point multilayer is filled into the stainless steel cabinet 2 of experimental rig, passes through expansion type screw
11 and sand block plate 10 control filling thickness；
B, Grouting Pipe 14 and water injection pipe 15 are inserted vertically into gravel sample respectively, adjust overflow according to the reservoir stress value of simulation
The oil pressure relief of valve 18；
C, it is separately turned on grouting pump 3 and water injecting pump 4, applies grouting pressure until pressure reaches setting value, grouting serous fluid is through slip casting
Pipe 14 enters in gravel sample, applies water injection pressure until hydraulic pressure reaches setting value, waterfront economy water pipe 15 enters in gravel sample；
D, grouting serous fluid is observed in gravel sample by the saturating slurry hole 19 in overflow valve 18 and sand block plate 10 during test
Seepage flow characteristics；
E, after slip casting terminates 24 hours, Grouting Pipe 14 and water injection pipe 15 are extracted, opens stainless steel cabinet 2, the sand after taking out slip casting
Gravel sample observes diffusion characteristic of the grouting serous fluid in gravel sample, measures grouting serous fluid axially diffusing in gravel sample
Distance.
The present embodiment is that most basic embodiment, the gravel sample of a, collection site, and a point multilayer are filled into test dress
In the stainless steel cabinet set, filling thickness is controlled by expansion type screw and sand block plate；B, Grouting Pipe and water injection pipe are erected respectively
Straight cutting enters in gravel sample, according to the oil pressure relief of the reservoir stress value regulation relief valve of simulation；C, be separately turned on grouting pump and
Water injecting pump applies grouting pressure until pressure reaches setting value, and grouting serous fluid enters in gravel sample through Grouting Pipe, applies water filling
Until hydraulic pressure reaches setting value, waterfront economy water pipe enters in gravel sample pressure；D, pass through overflow valve and sand block during test
Seepage flow characteristics of the saturating slurry hole observation grouting serous fluid in gravel sample in plate；E, after slip casting terminates 24 hours, Grouting Pipe is extracted
And water injection pipe, stainless steel cabinet is opened, it is special to observe diffusion of the grouting serous fluid in gravel sample for the gravel sample after taking out slip casting
Sign, measurement grouting serous fluid axially diffuses distance in gravel sample, by using removable semi-closed type stainless steel cabinet
And the actual gritting material in scene realizes grouting serous fluid under circumstance of flowing water in conjunction with dynamic water flow, reservoir stress condition is recycled
The visual Simulation of diffusion process in sandy pear variety surveys expansion of the slurries in gravel sample by opening stainless steel cabinet
Dissipate radius, can quantitative description and analysis circumstance of flowing water under Diffusion Law of the slurries in sandy pear variety, significantly reduce engineering
The design error of grout spreading range in design, and good control can be carried out to flow, pressure, stress, there is dynamic water ring
Border stability is good, the high feature of slurries diffusion parameter accuracy.
Embodiment 2
The test method of sandy pear variety slip casting dilation angle under a kind of simulation circumstance of flowing water, comprising the following steps:
A, the gravel sample of collection site, and point multilayer is filled into the stainless steel cabinet 2 of experimental rig, passes through expansion type screw
11 and sand block plate 10 control filling thickness；
B, Grouting Pipe 14 and water injection pipe 15 are inserted vertically into gravel sample respectively, adjust overflow according to the reservoir stress value of simulation
The oil pressure relief of valve 18；
C, it is separately turned on grouting pump 3 and water injecting pump 4, applies grouting pressure until pressure reaches setting value, grouting serous fluid is through slip casting
Pipe 14 enters in gravel sample, applies water injection pressure until hydraulic pressure reaches setting value, waterfront economy water pipe 15 enters in gravel sample；
D, grouting serous fluid is observed in gravel sample by the saturating slurry hole 19 in overflow valve 18 and sand block plate 10 during test
Seepage flow characteristics；
E, after slip casting terminates 24 hours, Grouting Pipe 14 and water injection pipe 15 are extracted, opens stainless steel cabinet 2, the sand after taking out slip casting
Gravel sample observes diffusion characteristic of the grouting serous fluid in gravel sample, measures grouting serous fluid axially diffusing in gravel sample
Distance.
In the step b, the oil pressure relief of overflow valve 18 is 3MPa.
In the step c, the grouting pressure of grouting pump 3 is 5MPa, and the water injection pressure of water injecting pump 4 is 1MPa.
Embodiment 3
The test method of sandy pear variety slip casting dilation angle under a kind of simulation circumstance of flowing water, comprising the following steps:
A, the gravel sample of collection site, and point multilayer is filled into the stainless steel cabinet 2 of experimental rig, passes through expansion type screw
11 and sand block plate 10 control filling thickness；
B, Grouting Pipe 14 and water injection pipe 15 are inserted vertically into gravel sample respectively, adjust overflow according to the reservoir stress value of simulation
The oil pressure relief of valve 18；
C, it is separately turned on grouting pump 3 and water injecting pump 4, applies grouting pressure until pressure reaches setting value, grouting serous fluid is through slip casting
Pipe 14 enters in gravel sample, applies water injection pressure until hydraulic pressure reaches setting value, waterfront economy water pipe 15 enters in gravel sample；
D, grouting serous fluid is observed in gravel sample by the saturating slurry hole 19 in overflow valve 18 and sand block plate 10 during test
Seepage flow characteristics；
E, after slip casting terminates 24 hours, Grouting Pipe 14 and water injection pipe 15 are extracted, opens stainless steel cabinet 2, the sand after taking out slip casting
Gravel sample observes diffusion characteristic of the grouting serous fluid in gravel sample, measures grouting serous fluid axially diffusing in gravel sample
Distance.
In the step b, the oil pressure relief of overflow valve 18 is 7MPa.
In the step c, the grouting pressure of grouting pump 3 is 7MPa, and the water injection pressure of water injecting pump 4 is 3MPa.
Embodiment 4
The test method of sandy pear variety slip casting dilation angle under a kind of simulation circumstance of flowing water, comprising the following steps:
A, the gravel sample of collection site, and point multilayer is filled into the stainless steel cabinet 2 of experimental rig, passes through expansion type screw
11 and sand block plate 10 control filling thickness；
B, Grouting Pipe 14 and water injection pipe 15 are inserted vertically into gravel sample respectively, adjust overflow according to the reservoir stress value of simulation
The oil pressure relief of valve 18；
C, it is separately turned on grouting pump 3 and water injecting pump 4, applies grouting pressure until pressure reaches setting value, grouting serous fluid is through slip casting
Pipe 14 enters in gravel sample, applies water injection pressure until hydraulic pressure reaches setting value, waterfront economy water pipe 15 enters in gravel sample；
D, grouting serous fluid is observed in gravel sample by the saturating slurry hole 19 in overflow valve 18 and sand block plate 10 during test
Seepage flow characteristics；
E, after slip casting terminates 24 hours, Grouting Pipe 14 and water injection pipe 15 are extracted, opens stainless steel cabinet 2, the sand after taking out slip casting
Gravel sample observes diffusion characteristic of the grouting serous fluid in gravel sample, measures grouting serous fluid axially diffusing in gravel sample
Distance.
In the step b, the oil pressure relief of overflow valve 18 is 10MPa.
In the step c, the grouting pressure of grouting pump 3 is 10MPa, and the water injection pressure of water injecting pump 4 is 5MPa.
Embodiment 5
The test method of sandy pear variety slip casting dilation angle under a kind of simulation circumstance of flowing water, comprising the following steps:
A, the gravel sample of collection site, and point multilayer is filled into the stainless steel cabinet 2 of experimental rig, passes through expansion type screw
11 and sand block plate 10 control filling thickness；
B, Grouting Pipe 14 and water injection pipe 15 are inserted vertically into gravel sample respectively, adjust overflow according to the reservoir stress value of simulation
The oil pressure relief of valve 18；
C, it is separately turned on grouting pump 3 and water injecting pump 4, applies grouting pressure until pressure reaches setting value, grouting serous fluid is through slip casting
Pipe 14 enters in gravel sample, applies water injection pressure until hydraulic pressure reaches setting value, waterfront economy water pipe 15 enters in gravel sample；
D, grouting serous fluid is observed in gravel sample by the saturating slurry hole 19 in overflow valve 18 and sand block plate 10 during test
Seepage flow characteristics；
E, after slip casting terminates 24 hours, Grouting Pipe 14 and water injection pipe 15 are extracted, opens stainless steel cabinet 2, the sand after taking out slip casting
Gravel sample observes diffusion characteristic of the grouting serous fluid in gravel sample, measures grouting serous fluid axially diffusing in gravel sample
Distance.
In the step b, the oil pressure relief of overflow valve 18 is 10MPa.
In the step c, the grouting pressure of grouting pump 3 is 10MPa, and the water injection pressure of water injecting pump 4 is 5MPa.
The experimental rig includes bracket 1 and the stainless steel cabinet 2 for storing gravel sample, and stainless steel cabinet 2 is fixed
Further include grouting pump 3 and water injecting pump 4 on bracket 1, stainless steel cabinet 2 include the first front end baffle 5, the second front end baffle 6,
The first semicircle hemizygous pipe 8 of semicircle hemizygous pipe 7, second and rear end cap 9, the first semicircle hemizygous pipe 7 and second semicircle half
8 detachable connection of pipe is closed, the first front end baffle 5 is fixedly connected with the front end of the first semicircle hemizygous pipe 7, the second front end baffle
6 are fixedly connected with the front end of the second semicircle hemizygous pipe 8, the rear end and second with the first semicircle hemizygous pipe 7 respectively of rear end cap 9
The rear end of semicircle hemizygous pipe 8 is fixedly connected, and is provided with sand block plate 10 in stainless steel cabinet 2, sand block plate 10 close to rear end cap 9,
Expansion type screw 11 is connected on sand block plate 10, expansion type screw 11 runs through rear end cap 9, is provided with injected hole in stainless steel cabinet 2
12 and water injection hole 13, Grouting Pipe 14 is connected on injected hole 12, and Grouting Pipe 14 is connect with grouting pump 3, is connected on water injection hole 13
Water injection pipe 15, water injection pipe 15 are connect with water injecting pump 4.
The present embodiment is a better embodiment, and experimental rig includes bracket and the stainless steel case for storing gravel sample
Body, stainless steel cabinet are fixed on bracket, further include grouting pump and water injecting pump, and stainless steel cabinet includes the first front end baffle, the
Two front end baffles, the first semicircle hemizygous pipe, the second semicircle hemizygous pipe and rear end cap, the first semicircle hemizygous pipe and the second half
Round hemizygous pipe detachable connection, the first front end baffle are fixedly connected with the front end of the first semicircle hemizygous pipe, the second front end
Baffle is fixedly connected with the front end of the second semicircle hemizygous pipe, the rear end cap rear end and second with the first semicircle hemizygous pipe respectively
The rear end of semicircle hemizygous pipe is fixedly connected, and sand block plate is provided in stainless steel cabinet, sand block plate is on rear end cap, sand block plate
It is connected with expansion type screw, expansion type screw runs through rear end cap, injected hole and water injection hole is provided in stainless steel cabinet, on injected hole
It is connected with Grouting Pipe, Grouting Pipe is connect with grouting pump, and water injection pipe is connected on water injection hole, and water injection pipe is connect with water injecting pump, is used
Removable semi-closed type stainless steel cabinet, it is quantitative convenient for opening dilation angle of the cabinet actual measurement slurries in gritting material body
Diffusion Law of the slurries in sandy pear variety under description and analysis circumstance of flowing water significantly reduces slurries diffusion half in engineering design
The design error of diameter；It is able to bear high-pressure slip-casting, highest grouting pressure is up to 10MPa, and highest water injection pressure is up to 5MPa；Slip casting
Material does not have the limitation of grain diameter thickness, and universality is strong；The spy that entire experimental rig has compressive resistance big, easy to operate
Point.
Embodiment 6
The test method of sandy pear variety slip casting dilation angle under a kind of simulation circumstance of flowing water, comprising the following steps:
A, the gravel sample of collection site, and point multilayer is filled into the stainless steel cabinet 2 of experimental rig, passes through expansion type screw
11 and sand block plate 10 control filling thickness；
B, Grouting Pipe 14 and water injection pipe 15 are inserted vertically into gravel sample respectively, adjust overflow according to the reservoir stress value of simulation
The oil pressure relief of valve 18；
C, it is separately turned on grouting pump 3 and water injecting pump 4, applies grouting pressure until pressure reaches setting value, grouting serous fluid is through slip casting
Pipe 14 enters in gravel sample, applies water injection pressure until hydraulic pressure reaches setting value, waterfront economy water pipe 15 enters in gravel sample；
D, grouting serous fluid is observed in gravel sample by the saturating slurry hole 19 in overflow valve 18 and sand block plate 10 during test
Seepage flow characteristics；
E, after slip casting terminates 24 hours, Grouting Pipe 14 and water injection pipe 15 are extracted, opens stainless steel cabinet 2, the sand after taking out slip casting
Gravel sample observes diffusion characteristic of the grouting serous fluid in gravel sample, measures grouting serous fluid axially diffusing in gravel sample
Distance.
In the step b, the oil pressure relief of overflow valve 18 is 10MPa.
In the step c, the grouting pressure of grouting pump 3 is 10MPa, and the water injection pressure of water injecting pump 4 is 5MPa.
The experimental rig includes bracket 1 and the stainless steel cabinet 2 for storing gravel sample, and stainless steel cabinet 2 is fixed
Further include grouting pump 3 and water injecting pump 4 on bracket 1, stainless steel cabinet 2 include the first front end baffle 5, the second front end baffle 6,
The first semicircle hemizygous pipe 8 of semicircle hemizygous pipe 7, second and rear end cap 9, the first semicircle hemizygous pipe 7 and second semicircle half
8 detachable connection of pipe is closed, the first front end baffle 5 is fixedly connected with the front end of the first semicircle hemizygous pipe 7, the second front end baffle
6 are fixedly connected with the front end of the second semicircle hemizygous pipe 8, the rear end and second with the first semicircle hemizygous pipe 7 respectively of rear end cap 9
The rear end of semicircle hemizygous pipe 8 is fixedly connected, and is provided with sand block plate 10 in stainless steel cabinet 2, sand block plate 10 close to rear end cap 9,
Expansion type screw 11 is connected on sand block plate 10, expansion type screw 11 runs through rear end cap 9, is provided with injected hole in stainless steel cabinet 2
12 and water injection hole 13, Grouting Pipe 14 is connected on injected hole 12, and Grouting Pipe 14 is connect with grouting pump 3, is connected on water injection hole 13
Water injection pipe 15, water injection pipe 15 are connect with water injecting pump 4.
Multiple overflow holes 16 are provided in the stainless steel cabinet 2, overflow hole 16 is along the axial distribution of stainless steel cabinet 2, arbitrarily
The distance between two adjacent overflow holes 16 are identical, and overflow pipe 17 is fixedly connected on overflow hole 16, is fixed on overflow pipe 17
Overflow valve 18.
The sand block plate 10 is stainless steel plate, and multiple slurry holes 19 are provided on sand block plate 10, and multiple slurry holes 19 are annular in shape
It is arranged on sand block plate 10.
The present embodiment is another better embodiment, is provided with multiple overflow holes in stainless steel cabinet, overflow hole is along stainless steel
Cabinet is axially distributed, and the distance between adjacent overflow hole of any two is identical, and overflow pipe, overflow pipe are fixedly connected on overflow hole
On be fixed with overflow valve, by regulation relief valve, can be realized the adjusting to injecting cement paste surrounding formation stress；With with practically
The characteristics of stressor layer is corresponding, pressure adjustable, and compression is evenly distributed.
Sand block plate is stainless steel plate, is provided with multiple slurry holes on sand block plate, multiple slurry holes are annularly arranged in sand block plate
On, not only compressive strength is high, but also can ensure that slip casting diffusion is smooth, so as to observe grouting serous fluid in real time in gravel sample
In seepage flow characteristics.
Embodiment 7
The test method of sandy pear variety slip casting dilation angle under a kind of simulation circumstance of flowing water, comprising the following steps:
A, the gravel sample of collection site, and point multilayer is filled into the stainless steel cabinet 2 of experimental rig, passes through expansion type screw
11 and sand block plate 10 control filling thickness；
B, Grouting Pipe 14 and water injection pipe 15 are inserted vertically into gravel sample respectively, adjust overflow according to the reservoir stress value of simulation
The oil pressure relief of valve 18；
C, it is separately turned on grouting pump 3 and water injecting pump 4, applies grouting pressure until pressure reaches setting value, grouting serous fluid is through slip casting
Pipe 14 enters in gravel sample, applies water injection pressure until hydraulic pressure reaches setting value, waterfront economy water pipe 15 enters in gravel sample；
D, grouting serous fluid is observed in gravel sample by the saturating slurry hole 19 in overflow valve 18 and sand block plate 10 during test
Seepage flow characteristics；
E, after slip casting terminates 24 hours, Grouting Pipe 14 and water injection pipe 15 are extracted, opens stainless steel cabinet 2, the sand after taking out slip casting
Gravel sample observes diffusion characteristic of the grouting serous fluid in gravel sample, measures grouting serous fluid axially diffusing in gravel sample
Distance.
In the step b, the oil pressure relief of overflow valve 18 is 10MPa.
In the step c, the grouting pressure of grouting pump 3 is 10MPa, and the water injection pressure of water injecting pump 4 is 5MPa.
The experimental rig includes bracket 1 and the stainless steel cabinet 2 for storing gravel sample, and stainless steel cabinet 2 is fixed
Further include grouting pump 3 and water injecting pump 4 on bracket 1, stainless steel cabinet 2 include the first front end baffle 5, the second front end baffle 6,
The first semicircle hemizygous pipe 8 of semicircle hemizygous pipe 7, second and rear end cap 9, the first semicircle hemizygous pipe 7 and second semicircle half
8 detachable connection of pipe is closed, the first front end baffle 5 is fixedly connected with the front end of the first semicircle hemizygous pipe 7, the second front end baffle
6 are fixedly connected with the front end of the second semicircle hemizygous pipe 8, the rear end and second with the first semicircle hemizygous pipe 7 respectively of rear end cap 9
The rear end of semicircle hemizygous pipe 8 is fixedly connected, and is provided with sand block plate 10 in stainless steel cabinet 2, sand block plate 10 close to rear end cap 9,
Expansion type screw 11 is connected on sand block plate 10, expansion type screw 11 runs through rear end cap 9, is provided with injected hole in stainless steel cabinet 2
12 and water injection hole 13, Grouting Pipe 14 is connected on injected hole 12, and Grouting Pipe 14 is connect with grouting pump 3, is connected on water injection hole 13
Water injection pipe 15, water injection pipe 15 are connect with water injecting pump 4.
Multiple overflow holes 16 are provided in the stainless steel cabinet 2, overflow hole 16 is along the axial distribution of stainless steel cabinet 2, arbitrarily
The distance between two adjacent overflow holes 16 are identical, and overflow pipe 17 is fixedly connected on overflow hole 16, is fixed on overflow pipe 17
Overflow valve 18.
The sand block plate 10 is stainless steel plate, and multiple slurry holes 19 are provided on sand block plate 10, and multiple slurry holes 19 are annular in shape
It is arranged on sand block plate 10.
The expansion type screw 11 includes multiple articulateds 20 and Duo Gen seamless steel pipe 21, and seamless steel pipe 21 is sliding by articulated 20
Dynamic connection.
The grouting pump 3 and water injecting pump 4 are variable pump, and grouting pressure table 22, water injection pipe 15 are provided in Grouting Pipe 14
On be provided with water injection pressure table 23, Grouting Pipe 14 includes circulation section 24 and slip casting section 25, and slip casting section 25 is floral tube, 24 He of section of circulating
Slip casting section 25 is integrally formed.
The present embodiment is another better embodiment, and expansion type screw includes multiple articulateds and Duo Gen seamless steel pipe, seamless
Steel pipe is slidably connected by articulated, and using effect is good, can smoothly be adjusted gravel sample and is filled into filling out in stainless steel cabinet
Fill thickness.
Grouting pump and water injecting pump are variable pump, and grouting pressure table is provided in Grouting Pipe, water filling is provided on water injection pipe
Pressure gauge, Grouting Pipe include circulation section and slip casting section, and slip casting section is floral tube, and the section that circulates and slip casting section are integrally formed, and grouting pump is adopted
With variable pump, pump discharge can be freely adjusted, water injecting pump uses variable pump, can freely adjust pump discharge and flow velocity,
Convenient for forming uniform river channels in gravel sample, circumstance of flowing water stability is good.
Embodiment 8
The test method of sandy pear variety slip casting dilation angle under a kind of simulation circumstance of flowing water, comprising the following steps:
A, the gravel sample of collection site, and point multilayer is filled into the stainless steel cabinet 2 of experimental rig, passes through expansion type screw
11 and sand block plate 10 control filling thickness；
B, Grouting Pipe 14 and water injection pipe 15 are inserted vertically into gravel sample respectively, adjust overflow according to the reservoir stress value of simulation
The oil pressure relief of valve 18；
C, it is separately turned on grouting pump 3 and water injecting pump 4, applies grouting pressure until pressure reaches setting value, grouting serous fluid is through slip casting
Pipe 14 enters in gravel sample, applies water injection pressure until hydraulic pressure reaches setting value, waterfront economy water pipe 15 enters in gravel sample；
D, grouting serous fluid is observed in gravel sample by the saturating slurry hole 19 in overflow valve 18 and sand block plate 10 during test
Seepage flow characteristics；
E, after slip casting terminates 24 hours, Grouting Pipe 14 and water injection pipe 15 are extracted, opens stainless steel cabinet 2, the sand after taking out slip casting
Gravel sample observes diffusion characteristic of the grouting serous fluid in gravel sample, measures grouting serous fluid axially diffusing in gravel sample
Distance.
In the step b, the oil pressure relief of overflow valve 18 is 10MPa.
In the step c, the grouting pressure of grouting pump 3 is 10MPa, and the water injection pressure of water injecting pump 4 is 5MPa.
The experimental rig includes bracket 1 and the stainless steel cabinet 2 for storing gravel sample, and stainless steel cabinet 2 is fixed
Further include grouting pump 3 and water injecting pump 4 on bracket 1, stainless steel cabinet 2 include the first front end baffle 5, the second front end baffle 6,
The first semicircle hemizygous pipe 8 of semicircle hemizygous pipe 7, second and rear end cap 9, the first semicircle hemizygous pipe 7 and second semicircle half
8 detachable connection of pipe is closed, the first front end baffle 5 is fixedly connected with the front end of the first semicircle hemizygous pipe 7, the second front end baffle
6 are fixedly connected with the front end of the second semicircle hemizygous pipe 8, the rear end and second with the first semicircle hemizygous pipe 7 respectively of rear end cap 9
The rear end of semicircle hemizygous pipe 8 is fixedly connected, and is provided with sand block plate 10 in stainless steel cabinet 2, sand block plate 10 close to rear end cap 9,
Expansion type screw 11 is connected on sand block plate 10, expansion type screw 11 runs through rear end cap 9, is provided with injected hole in stainless steel cabinet 2
12 and water injection hole 13, Grouting Pipe 14 is connected on injected hole 12, and Grouting Pipe 14 is connect with grouting pump 3, is connected on water injection hole 13
Water injection pipe 15, water injection pipe 15 are connect with water injecting pump 4.
Multiple overflow holes 16 are provided in the stainless steel cabinet 2, overflow hole 16 is along the axial distribution of stainless steel cabinet 2, arbitrarily
The distance between two adjacent overflow holes 16 are identical, and overflow pipe 17 is fixedly connected on overflow hole 16, is fixed on overflow pipe 17
Overflow valve 18.
The sand block plate 10 is stainless steel plate, and multiple slurry holes 19 are provided on sand block plate 10, and multiple slurry holes 19 are annular in shape
It is arranged on sand block plate 10.
The expansion type screw 11 includes multiple articulateds 20 and Duo Gen seamless steel pipe 21, and seamless steel pipe 21 is sliding by articulated 20
Dynamic connection.
The grouting pump 3 and water injecting pump 4 are variable pump, and grouting pressure table 22, water injection pipe 15 are provided in Grouting Pipe 14
On be provided with water injection pressure table 23, Grouting Pipe 14 includes circulation section 24 and slip casting section 25, and slip casting section 25 is floral tube, 24 He of section of circulating
Slip casting section 25 is integrally formed.
Rubber mat plate 26, rubber mat plate are provided between described first semicircle hemizygous pipe 7 and the second semicircle hemizygous pipe 8
26 are fixed with lock ring in 2 intermediate arrangement of stainless steel cabinet, the outer circumferential walls of stainless steel cabinet 2 along the axial of stainless steel cabinet 2
27。
The bracket 1 includes support base 28 and four universal wheels 29, and four universal wheels 29 are separately fixed at 28 bottom of support base
On four angles in portion.
The aperture of the injected hole 12 is 25 millimeters, and the aperture of water injection hole 13 is 30 millimeters.
The first floor 30 and the second floor 31 are fixed on the rear end cap 9, the first floor 30 and the second floor 31 intersect
It arranges, is provided with multiple peepholes 32 on rear end cap 9.
The present embodiment is preferred forms, the gravel sample of a, collection site, and a point multilayer is filled into experimental rig
In stainless steel cabinet, filling thickness is controlled by expansion type screw and sand block plate；B, Grouting Pipe and water injection pipe are inserted vertically respectively
Enter in gravel sample, according to the oil pressure relief of the reservoir stress value regulation relief valve of simulation；C, grouting pump and water filling are separately turned on
Pump applies grouting pressure until pressure reaches setting value, and grouting serous fluid enters in gravel sample through Grouting Pipe, applies water injection pressure
Until hydraulic pressure reaches setting value, waterfront economy water pipe enters in gravel sample；D, by overflow valve and sand block plate during test
Seepage flow characteristics of the saturating slurry hole observation grouting serous fluid in gravel sample；E, after slip casting terminates 24 hours, Grouting Pipe and note are extracted
Water pipe opens stainless steel cabinet, the gravel sample after taking out slip casting, observes diffusion characteristic of the grouting serous fluid in gravel sample,
Measurement grouting serous fluid axially diffuses distance in gravel sample, by using removable semi-closed type stainless steel cabinet and
The actual gritting material in scene realizes under circumstance of flowing water grouting serous fluid in sand in conjunction with dynamic water flow, reservoir stress condition is recycled
The visual Simulation of diffusion process in gravel stratum surveys diffusion of the slurries in gravel sample half by opening stainless steel cabinet
Diameter, can quantitative description and analysis circumstance of flowing water under Diffusion Law of the slurries in sandy pear variety, significantly reduce engineering design
The design error of middle grout spreading range, and good control can be carried out to flow, pressure, stress, have circumstance of flowing water steady
It is qualitative good, the high feature of slurries diffusion parameter accuracy.
It is provided with rubber mat plate between first semicircle hemizygous pipe and the second semicircle hemizygous pipe, rubber mat plate is along stainless steel
The axial of cabinet is fixed with lock ring in stainless steel cabinet intermediate arrangement, the outer circumferential walls of stainless steel cabinet, can further mention
Highly dense sealing strength has frictional resistance small, good airproof performance, the high advantage of compressive strength.
Bracket includes support base and four universal wheels, and four universal wheels are separately fixed on four angles of support base bottom,
The mobile convenience of entire experimental rig is improved, test operation is more convenient.
The aperture of injected hole is 25 millimeters, and the aperture of water injection hole is 30 millimeters, using this specific injected hole aperture and
Water injection hole aperture can adapt to the slurry material or dynamic water of high pressure, high flow capacity and high flow rate.
The first floor and the second floor, the first floor and the second floor arranged crosswise are fixed on rear end cap, on rear end cap
Multiple peepholes are provided with, convenient for observing seepage flow characteristics of the grouting serous fluid in gravel sample in real time.
Claims (10)
1. the test method of sandy pear variety slip casting dilation angle under a kind of simulation circumstance of flowing water, which is characterized in that including following step
It is rapid:
A, the gravel sample of collection site, and point multilayer is filled into the stainless steel cabinet (2) of experimental rig, passes through telescopic spiral shell
Bar (11) and sand block plate (10) control filling thickness；
B, Grouting Pipe (14) and water injection pipe (15) are inserted vertically into gravel sample respectively, are adjusted according to the reservoir stress value of simulation
The oil pressure relief of overflow valve (18)；
C, it is separately turned on grouting pump (3) and water injecting pump (4), applies grouting pressure until pressure reaches setting value, grouting serous fluid warp
Grouting Pipe (14) enters in gravel sample, applies water injection pressure until hydraulic pressure reaches setting value, waterfront economy water pipe (15) enters sand
In gravel sample；
D, grouting serous fluid is observed by the saturating slurry hole (19) in overflow valve (18) and sand block plate (10) during test to try in gravel
Seepage flow characteristics in sample；
E, after slip casting terminates 24 hours, Grouting Pipe (14) and water injection pipe (15) are extracted, is opened stainless steel cabinet (2), slip casting is taken out
Gravel sample afterwards observes diffusion characteristic of the grouting serous fluid in gravel sample, measures axis of the grouting serous fluid in gravel sample
To diffusion length.
2. the test method of sandy pear variety slip casting dilation angle under a kind of simulation circumstance of flowing water according to claim 1,
Be characterized in that: in the step b, the oil pressure relief of overflow valve (18) is 3~10MPa.
3. the test method of sandy pear variety slip casting dilation angle under a kind of simulation circumstance of flowing water according to claim 1,
Be characterized in that: in the step c, the grouting pressure of grouting pump (3) is 5~10MPa, the water injection pressure of water injecting pump (4) is 1~
5MPa。
4. the test method of sandy pear variety slip casting dilation angle under a kind of simulation circumstance of flowing water according to claim 1,
Be characterized in that: the experimental rig includes bracket (1) and the stainless steel cabinet (2) for storing gravel sample, stainless steel cabinet
(2) it is fixed on bracket (1), further includes grouting pump (3) and water injecting pump (4), stainless steel cabinet (2) includes the first front end baffle
(5), the second front end baffle (6), the first semicircle hemizygous pipe (7), the second semicircle hemizygous pipe (8) and rear end cap (9), the first half
Round hemizygous pipe (7) and second semicircle hemizygous pipe (8) detachable connection, the first front end baffle (5) and first semicircle half
The front end for closing pipe (7) is fixedly connected, and the second front end baffle (6) is fixedly connected with the front end of the second semicircle hemizygous pipe (8), rear end
Lid (9) is fixedly connected with the rear end of the rear end of the first semicircle hemizygous pipe (7) and the second semicircle hemizygous pipe (8) respectively, stainless
It is provided with sand block plate (10) in steel cabinet (2), sand block plate (10) is connected with telescopic on rear end cap (9), sand block plate (10)
Screw rod (11), expansion type screw (11) run through rear end cap (9), are provided with injected hole (12) and water injection hole in stainless steel cabinet (2)
(13), it is connected with Grouting Pipe (14) on injected hole (12), Grouting Pipe (14) is connect with grouting pump (3), and water injection hole connects on (13)
Have water injection pipe (15), water injection pipe (15) is connect with water injecting pump (4).
5. the test method of sandy pear variety slip casting dilation angle under a kind of simulation circumstance of flowing water according to claim 4,
It is characterized in that: being provided with multiple overflow holes (16) on the stainless steel cabinet (2), overflow hole (16) is axial along stainless steel cabinet (2)
Distribution, the distance between adjacent overflow hole of any two (16) is identical, and overflow pipe (17) are fixedly connected on overflow hole (16), overflows
Overflow valve (18) are fixed in flow tube (17).
6. the test method of sandy pear variety slip casting dilation angle under a kind of simulation circumstance of flowing water according to claim 4,
Be characterized in that: the sand block plate (10) is stainless steel plate, is provided with multiple slurry holes (19), multiple slurry holes on sand block plate (10)
(19) it is annularly arranged on sand block plate (10).
7. the test method of sandy pear variety slip casting dilation angle under a kind of simulation circumstance of flowing water according to claim 4,
Be characterized in that: the expansion type screw (11) includes multiple articulateds (20) and more seamless steel pipes (21), and seamless steel pipe (21) is logical
Articulated (20) is crossed to be slidably connected.
8. the test method of sandy pear variety slip casting dilation angle under a kind of simulation circumstance of flowing water according to claim 4,
Be characterized in that: the grouting pump (3) and water injecting pump (4) are variable pump, and grouting pressure table (22) are provided in Grouting Pipe (14),
It is provided on water injection pipe (15) water injection pressure table (23), Grouting Pipe (14) includes circulation section (24) and slip casting section (25), slip casting section
(25) it is floral tube, circulates section (24) and slip casting section (25) is integrally formed.
9. the test method of sandy pear variety slip casting dilation angle under a kind of simulation circumstance of flowing water according to claim 4,
It is characterized in that: being provided with rubber mat plate (26) between the described first semicircle hemizygous pipe (7) and the second semicircle hemizygous pipe (8),
Rubber mat plate (26) is along the axial in stainless steel cabinet (2) intermediate arrangement, the circumference of stainless steel cabinet (2) of stainless steel cabinet (2)
Lock ring (27) are fixed on outer wall.
10. the test method of sandy pear variety slip casting dilation angle under a kind of simulation circumstance of flowing water according to claim 4,
Be characterized in that: the bracket (1) includes support base (28) and four universal wheels (29), and four universal wheels (29) are separately fixed at branch
On four angles for supportting seat (28) bottom.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109752246A (en) * | 2019-01-22 | 2019-05-14 | 北京交通大学 | A kind of interior device for maintaining the high hydraulic pressure dynamic equilibrium of sample of pressure indoor |
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