CN113310872B - Elastic wave assisted cement grouting water stopping model test device - Google Patents
Elastic wave assisted cement grouting water stopping model test device Download PDFInfo
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- CN113310872B CN113310872B CN202110570191.5A CN202110570191A CN113310872B CN 113310872 B CN113310872 B CN 113310872B CN 202110570191 A CN202110570191 A CN 202110570191A CN 113310872 B CN113310872 B CN 113310872B
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- 238000012360 testing method Methods 0.000 title claims abstract description 98
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 80
- 239000004568 cement Substances 0.000 title claims abstract description 60
- 238000002347 injection Methods 0.000 claims abstract description 27
- 239000007924 injection Substances 0.000 claims abstract description 27
- 238000002474 experimental method Methods 0.000 claims abstract description 20
- 238000005192 partition Methods 0.000 claims abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 19
- 239000002002 slurry Substances 0.000 claims abstract description 18
- 238000007789 sealing Methods 0.000 claims description 24
- 239000002689 soil Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 3
- 238000007569 slipcasting Methods 0.000 abstract description 18
- 230000002349 favourable effect Effects 0.000 abstract 1
- 238000010298 pulverizing process Methods 0.000 description 19
- 230000000694 effects Effects 0.000 description 11
- 238000010276 construction Methods 0.000 description 4
- 239000011440 grout Substances 0.000 description 4
- 238000000429 assembly Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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- G01N15/082—Investigating permeability by forcing a fluid through a sample
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
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- G01N15/0806—Details, e.g. sample holders, mounting samples for testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/38—Concrete; Lime; Mortar; Gypsum; Bricks; Ceramics; Glass
- G01N33/383—Concrete or cement
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Abstract
The invention discloses an elastic wave auxiliary cement grouting water stop model test device which comprises a test box and an elastic wave emitter arranged in the test box, wherein one side of the test box is communicated with a grouting component, and the other side of the test box is communicated with an adjustable pressurization water injection component; and cement slurry is input into the test box through the grouting assembly, and the adjustable pressurizing water injection assembly applies pressure to water and inputs the water into the test box. Through setting up the proof box, and its inside partition board will be divided equally through the partition panel in the proof box, and the water pressure in every experimental area, elastic wave intensity and cement thick liquid all can carry out free regulation and control, can contrast in the experiment, fully embody the influence that the cement thick liquid received under different conditions, can adjust the inside water pressure of proof box, thereby simulate the water pressure under the different degree of depth, be favorable to experimenting the influence of different water pressure to the cement slip casting, through setting up crushing structure, can smash the cement thick liquid of inputing to the proof box and refine.
Description
Technical Field
The invention relates to the technical field of grouting water stop experiments. In particular to an elastic wave assisted cement grouting water stop model test device.
Background
When engineering construction is carried out on a water-rich stratum, underground water often influences the safety and smooth operation of engineering construction and influences the safety of the engineering construction, and a grouting method is an effective method for preventing seepage, stopping leakage, reinforcing and correcting the deflection of a building in the engineering construction; elastic waves are transmitted in rock-soil media, so that liquid in pores generates pressure gradient, and the movement of underground water and cement slurry can be influenced; in order to research the water stopping effect of the elastic wave assisted cement grouting technology under the condition of a real water-rich stratum, the conventional indoor grouting test equipment cannot apply low-frequency and high-frequency elastic waves, cannot simulate the real underground water seepage condition, cannot meet the test requirements for testing the slurry migration rule, and cannot meet the requirements.
Disclosure of Invention
Therefore, the invention aims to provide an elastic wave auxiliary cement grouting water stop model test device which can simulate underground water pressures at different depths and is convenient for testing cement grout with different fineness.
In order to solve the technical problems, the invention provides the following technical scheme: an elastic wave assisted cement grouting water stop model test device comprises a test box and an elastic wave emitter arranged in the test box, wherein one side of the test box is communicated with a grouting assembly, and the other side of the test box is communicated with an adjustable pressurized water injection assembly; and cement slurry is input into the test box through the grouting assembly, and the adjustable pressurizing water injection assembly applies pressure to water and inputs the water into the test box.
Above-mentioned cement slip casting stagnant water model test device is assisted to elastic wave, be provided with the partition panel along its direction of height in the proof box, the quantity of partition panel is two or more, just the partition panel with the roof of proof box is parallel, around the partition panel with the inside wall sealing connection of proof box, the partition panel will the inner space of proof box equallyd divide into different experimental area, just all be provided with in the different experimental area of equallyd divide in the proof box the elastic wave transmitter. Equally divide into three experimental area with the proof box in, can carry out three group's experiments simultaneously, be convenient for contrast.
Above-mentioned cement slip casting stagnant water model test device is assisted to elastic wave slip casting subassembly includes cement thick liquid inlet channel, slip casting pipe and crushing structure, the quantity of slip casting pipe with the regional number of mutually independent experiment equals in the proof box, every the one end of slip casting pipe inserts respectively in the different equant experiment area of proof box, every the other end of slip casting pipe all with cement thick liquid inlet channel intercommunication, all be provided with in every mutually independent experiment area in the proof box crushing structure, crushing structure's feed inlet with the discharge end intercommunication of slip casting pipe.
Above-mentioned cement slip casting stagnant water model test device is assisted to elastic wave, crushing structure includes rubbing crusher, two crushing rollers, first adjusting part and second adjusting part, two smash the roller and follow the axis symmetry of rubbing crusher sets up the inside both sides at rubbing crusher, waist type groove has all been seted up along it radially to the tip both sides of rubbing crusher, wear out respectively at the both ends of smashing the waist type groove at rubbing crusher both ends, one the both ends of smashing the roller all set up first adjusting part, another the both ends of smashing the roller all are provided with the second adjusting part, first adjusting part with the second adjusting part all with the tip fixed connection of rubbing crusher, rubbing crusher's top intercommunication has the intake pipe, the other end of intake pipe is worn out the lateral wall and the intercommunication of proof box have the air pump. Through setting up crushing structure, can smash the cement thick liquid in the input test case, the grouting effect of the cement thick liquid of the different fineness sizes of experiment under the elastic wave of being convenient for.
The elastic wave assisted cement grouting water stopping model test device comprises a first adjusting component and a second adjusting component, wherein the first adjusting component is the same in structure and comprises a fixing plate, a supporting plate, an adjusting screw rod and a shaft sleeve, the fixing plate is fixedly connected to the top of a crushing barrel, a waist-shaped groove which is the same as and coincides with the end part of the crushing barrel is also formed in the top of the fixing plate, two coincident waist-shaped grooves are formed in the waist-shaped groove, one end, away from the center of the crushing barrel, of the fixing plate is fixedly connected with the side wall of the supporting plate, the supporting plate is perpendicular to the fixing plate, a threaded hole is formed in the middle of the side wall of the supporting plate in the radial direction of the crushing barrel, the adjusting screw rod is in threaded connection in the threaded hole, the end part of the adjusting screw rod is rotatably connected with the outer side wall of the shaft sleeve and is relatively fixed with the shaft sleeve, the end part of the crushing roller penetrates into the shaft sleeve, the top end part of the crushing roller is connected with a motor in a transmission mode, a rubber sealing plate is arranged at the bottom of the fixing plate, an opening is formed in the middle of the rubber sealing plate, and an opening is formed in the middle of the rubber sealing plate. Through setting up first adjusting part and second adjusting part, can be to the interval of adjusting two crushing rollers to adjust the fineness of smashing grout.
The utility model provides an elasticity wave auxiliary cement slip casting stagnant water model test device, the waist type inslot inner wall both sides of fixed plate are along its equal fixedly connected with two or two above rubber air chambers of length direction, both sides the equal fixedly connected with gasbag in top of rubber air chamber, two the opposite face of gasbag is laminated each other, and both sides are relative the opposite face of rubber air chamber is close to each other, the fixed plate top is followed the fixedly connected with retaining ring all around of waist type groove, two the lateral wall of gasbag with the inside wall overlap joint of retaining ring, the axle sleeve passes both sides between the rubber air chamber, just the axle sleeve passes two between the gasbag, the equal fixedly connected with connecting rod in lateral wall both sides of axle sleeve, two the equal fixedly connected with clamp in bottom of connecting rod, the inside wall of clamp be with the circular-arc that the axle sleeve external diameter matches, circular-arc and gasbag of clamp are close to the lateral wall overlap joint of retaining ring, the top of rubber air chamber all have communicating pipe with corresponding gasbag bottom intercommunication, the intake valve is located the one end top intercommunication of gasbag has sealed cover plate, one side of sealed cover plate with the inner wall bottom fixed connection of gasbag, the top intercommunication has the blast pipe, the second end wears out the test box, and the second end of intake pipe is provided with the rubber chamber.
Above-mentioned cement slip casting stagnant water model test device is assisted to elastic wave, the both ends of crushing barrel all are through bolt fixedly connected with fender bracket, all the intercommunication has the material pipe in the middle of the both ends of crushing barrel, the material nose portion fixedly connected with threaded connection pipe on crushing barrel top, threaded connection pipe with slip casting pipe intercommunication. Through setting up the bearer bar, can protect first adjusting part and second adjusting part.
The adjustable pressurizing water injection assembly comprises water injection pipes and pressurizing valves arranged on the water injection pipes, the number of the water injection pipes is equal to that of mutually independent experiment areas in the test box, and one end of each water injection pipe is inserted into different equal division experiment areas in the test box and is communicated with fluid. Through pressurization water injection subassembly, can regulate and control the water pressure in the proof box, realize simulating the water pressure under the different degree of depth.
Above-mentioned cement slip casting stagnant water model test device is assisted to elastic wave, the inside different experimental area that divide equally in the proof box all fills the mixture of soil and rubble, and the mass ratio of soil and rubble is 5. A real underground environment can be simulated.
The technical scheme of the invention achieves the following beneficial technical effects:
1. through setting up the proof box, and will its inside partition board equally divide in the proof box, and water pressure, elastic wave intensity and cement thick liquid in every experimental area all can carry out free regulation and control, are convenient for contrast in the experiment, fully embody the influence that the cement thick liquid received under different conditions.
2. By arranging the adjustable pressurized water injection assembly, the water pressure in the test box can be adjusted, so that the water pressure at different depths can be simulated, and the influence of different water pressures on cement grouting can be tested; through setting up the air pump, can realize the atmospheric pressure in the regulation and control single experimental area, reach the purpose that different atmospheric pressures tested to the produced influence of slip casting.
3. Through setting up the slip casting subassembly, and the output of slip casting subassembly sets up crushing structure, can smash the cement thick liquid that imports to the proof box and refine, and regulate and control cement fineness accessible adjusting part, realize the slip casting effect experiment under the elastic wave to the cement thick liquid of different fineness sizes, be convenient for keep water pressure and elastic wave to contrast when equidimension.
4. By arranging the air bag and the rubber air chamber, the periphery of the shaft sleeve can be sealed, cement paste is prevented from leaking into the protective frame from the crushing cylinder, the rubber air chamber is extruded by the shaft sleeve to inflate the air bag while the shaft sleeve is adjusted, the air bag is continuously inflated, and the space between the shaft sleeve and the waist-shaped groove is filled and extruded to realize sealing; and the pressure in the test area is higher, the extrusion force to the rubber air chamber is stronger, the more gas is rushed into the air bag, the sealing effect is in direct proportion to the pressure in the test area, and the dynamic sealing effect is realized.
Drawings
FIG. 1 is a schematic front sectional view of the present invention;
FIG. 2 is a schematic perspective view of the pulverizing structure of the present invention;
FIG. 3 is an enlarged view of the structure of FIG. 2A of the present invention;
FIG. 4 is a schematic front view of the pulverizing structure of the present invention;
FIG. 5 is a perspective view of the assembled rubber air chamber, bladder and clamp of the present invention;
FIG. 6 is a schematic front sectional view of the assembled rubber air chamber, bladder and clamp of the present invention;
FIG. 7 is a schematic side sectional view of the assembled rubber air chamber, bladder and clamp of the present invention.
In the figures, the reference numbers are given by: 1-a test chamber; 2-an elastic wave emitter; 3-a cement slurry liquid inlet pipeline; 4-water injection pipe; 5-partition board; 6-grouting pipe; 7-crushing structure; 8-threaded connection pipe; 9-a crushing cylinder; 10-a crushing roller; 11-a motor; 12-a first adjustment assembly; 121-fixing plate; 122-waist-shaped groove; 123-rubber sealing plate; 124-shaft sleeve; 125-a support plate; 126-adjusting the screw; 13-a second adjustment assembly; 14-a protective frame; 15-an air inlet pipe; 16-an air pump; 17-a pressure valve; 18-a rubber air chamber; 19-air bag; 20-a communicating tube; 21-sealing the cover plate; 22-one-way inlet valve; 23-an exhaust pipe; 24-a pressure relief valve; 25-a retainer ring; 26-a hoop; 27-connecting rod.
Detailed Description
Referring to fig. 1, an elastic wave assisted cement grouting water stop model test device comprises a test box 1 and an elastic wave emitter 2 arranged inside the test box 1, wherein a grouting component is communicated with one side of the test box 1, an adjustable pressurized water injection component is communicated with the other side of the test box 1, the test box 1 is arranged, the test box 1 is internally equally divided by a partition plate 5, the water pressure, the elastic wave intensity and cement grout in each test area can be freely regulated and controlled, comparison can be performed in the test, and the influence of the cement grout under different conditions can be fully reflected; partition boards 5 are arranged in the test box 1 along the height direction of the test box, the number of the partition boards 5 is two, the partition boards 5 are parallel to the top wall of the test box 1, the periphery of each partition board 5 is hermetically connected with the inner side wall of the test box 1, the internal space of the test box 1 is equally divided into three test areas by the two partition boards 5, elastic wave emitters 2 are arranged in the three equal-divided test areas of the test box 1, mixtures of soil and gravels are filled in the three equal-divided test areas in the test box 1, the mass ratio of the soil to the gravels is 5; the grouting assembly comprises a cement slurry liquid inlet pipeline 3, grouting pipes 6 and a crushing structure 7, the number of the grouting pipes 6 is three, one end of each grouting pipe 6 is inserted into different equal experimental areas of the test box 1, the other end of each grouting pipe 6 is communicated with the cement slurry liquid inlet pipeline 3, the crushing structure 7 is arranged in each mutually independent experimental area of the test box 1, a feed inlet of the crushing structure 7 is communicated with a discharge end of each grouting pipe 6, the adjustable pressurizing water injection assembly comprises a water injection pipe 4 and a pressurizing valve 17 arranged on the water injection pipe 4, the number of the water injection pipes 4 is three, one end of each water injection pipe 4 is inserted into different equal experimental areas of the test box 1 respectively and is communicated with fluid, and the water pressure inside the test box 1 can be adjusted by arranging the adjustable pressurizing water injection assembly, so that the water pressure at different depths can be simulated, and the influence of different water pressures on cement grouting can be favorably realized.
As shown in fig. 2, the pulverizing structure 7 includes a pulverizing barrel 9, two pulverizing rollers 10, a first adjusting assembly 12 and a second adjusting assembly 13, the two pulverizing rollers 10 are symmetrically disposed on two sides of the pulverizing barrel 9 along the axis of the pulverizing barrel 9, two sides of the end portion of the pulverizing barrel 9 are both radially provided with a waist-shaped groove 122, the waist-shaped groove 122 is internally provided with a rubber sealing plate 123, two ends of the pulverizing rollers 10 respectively penetrate through the waist-shaped grooves 122 on two ends of the pulverizing barrel 9, two ends of one pulverizing roller 10 are both provided with the first adjusting assembly 12, two ends of the other pulverizing roller 10 are both provided with the second adjusting assembly 13, the first adjusting assembly 12 and the second adjusting assembly 13 are both fixedly connected to the end portion of the pulverizing barrel 9, the top end of the pulverizing barrel 9 is communicated with an air inlet pipe 15, the other end of the air inlet pipe 15 penetrates through the side wall of the pulverizing box 1 and is communicated with an air pump 16, the first adjusting assembly 12 and the second adjusting assembly 13 have the same structure, as shown in fig. 3, the first adjusting assembly 12 includes a fixing plate 121, a supporting plate 125, a screw rod 125 is connected to the fixing plate 125, a screw rod 121 is connected to the fixing plate 121, a screw rod 121 is welded to the fixing plate 121, a top of the pulverizing barrel 9 is also provided with a pulverizing barrel 9, a screw hole 121 is welded to the fixing plate 121, a screw hole 121 is provided in the top of the pulverizing barrel 9, and a screw hole 121, the supporting plate 121, the same axial fixing plate 121, the same as a screw hole 121, and a screw hole 121, the fixing plate 121 are vertically welded to the fixing plate 121, the end part of the adjusting screw 126 is rotatably connected with the outer side wall of the shaft sleeve 124, the adjusting screw 126 is relatively fixed with the shaft sleeve 124, the end part of the crushing roller 10 penetrates into the shaft sleeve 124, the top end of the crushing roller 10 is in transmission connection with the motor 11, the bottom of the fixing plate 121 is provided with a rubber sealing plate 123, the middle part of the rubber sealing plate 123 is provided with an opening, the shaft sleeve 124 penetrates through the opening in the middle part of the rubber sealing plate 123, a grouting assembly is arranged, the crushing structure 7 is arranged at the output end of the grouting assembly, cement slurry input into the test box 1 can be crushed and refined, the crushed fineness of the cement can be regulated and controlled through the adjusting assembly, a grouting effect experiment of the cement slurry with different fineness sizes under elastic waves is realized, and comparison is facilitated while the water pressure and the elastic waves are kept equal in size.
As shown in fig. 4, both ends of the crushing cylinder 9 are fixedly connected with a protection frame 14 through bolts, the middle of both ends of the crushing cylinder 9 are communicated with material pipes, the top of the material pipe at the top of the crushing cylinder 9 is fixedly connected with a threaded connection pipe 8, and the threaded connection pipe 8 is communicated with the grouting pipe 6.
As shown in fig. 5-7, two or more than two rubber air chambers 18 are fixedly connected to both sides of the inner wall of the waist-shaped groove 122 of the fixing plate 121 along the length direction thereof, air bags 19 are fixedly connected to both sides of the top of the rubber air chamber 18, two opposite surfaces of the air bags 19 are attached to each other, the opposite surfaces of the rubber air chamber 18 opposite to each other are close to each other, a retainer ring 25 is fixedly connected to the periphery of the waist-shaped groove 122 along the top of the fixing plate 121, two outer side walls of the air bags 19 are overlapped with the inner side walls of the retainer ring 25, the shaft sleeve 124 passes through both sides between the rubber air chambers 18, two connecting rods 27 are fixedly connected to both sides of the side wall of the shaft sleeve 124, two bottoms of the connecting rods 27 are fixedly connected with a clamp 26, the inner side wall of the clamp 26 is arc-shaped and is matched with the outer diameter of the shaft sleeve 124, the arc-shaped inner side wall of the clamp 26 is overlapped with the outer side wall of the air bag 19, the top of the rubber air bag 18 is communicated with the bottom of the corresponding air bag 19 with a communicating pipe 20, a sealing cover plate 21 is connected with the bottom of the air bag 19, two ends of the air inlet pipe 23 are communicated with the air inlet pipe 23, two ends of the air inlet pipe 23 are communicated with the air chamber 18, two ends of the second air inlet pipe 23 of the test box 1, the air inlet pipe 23 are communicated with the second end of the test box 23, the cement paste is prevented from leaking from the crushing cylinder 9 to the protective frame 14, so that the service life of the equipment is prolonged, the shaft sleeve 124 is used for extruding the rubber air chamber 18 to inflate the air bag 19 while the shaft sleeve 124 is adjusted, the air bag 19 is continuously inflated, and the space between the shaft sleeve 124 and the waist-shaped groove 122 is filled and extruded to realize sealing; and the higher the pressure in the test area is, the stronger the extrusion force to the rubber air chamber 18 is, the more the gas is flushed into the air bag 19, the sealing effect is in direct proportion to the pressure in the test area, and the dynamic sealing effect is realized.
The working principle is as follows: when the test box is used, a mixture of soil and gravels is added into each different experiment area in the test box 1, the elastic wave emitter 2 is opened through an external controller, the elastic waves are adjusted to required strength, water is input into the water injection pipe 4, the water pressure in the experiment area which is independently sealed in the test box 1 is controlled and input, the water pressure of soil layers with different depths is conveniently simulated, cement slurry is input into the cement slurry liquid inlet pipeline 3 through an external pump, the cement slurry liquid inlet pipeline 3 respectively conveys the cement slurry to the plurality of grouting pipes 6 and inputs the cement slurry into the crushing structure 7, the crushing structure 7 crushes the cement slurry, and grouting experiments are carried out under the action of the elastic waves;
when the fineness of the cement paste needs to be adjusted, the first adjusting assemblies 12 at two ends of one crushing roller 10 and the second adjusting assemblies 13 at two ends of the other crushing roller 10 are respectively adjusted, during adjustment, the adjusting screws 126 of the two first adjusting assemblies 12 are screwed, the adjusting screws 126 are rotatably connected with the shaft sleeve 124, namely the adjusting screws 126 are connected with the shaft sleeve 124 through bearings, the adjusting screws 126 and the shaft sleeve 124 are axially fixed and can rotate in the circumferential direction, when the adjusting screws 126 rotate, the adjusting screws 126 are axially moved by matching with threaded holes in the side wall of the supporting plate 125 to drive the shaft sleeve 124 to move along the waist-shaped groove 122 of the fixing plate 121, so that the positions of the crushing rollers 10 are adjusted, and by analogy, the distance between the two crushing rollers 10 is adjusted, so that the crushing effect is controlled;
when sealing, firstly, a certain amount of gas is filled into the air bag 19 to expand the air bag 19 to a certain degree, two sides of the shaft sleeve 124 are respectively overlapped with the side walls of the two air bags 19, when the shaft sleeve 124 is driven by rotating the adjusting screw 126 to move, the shaft sleeve 124 moves and simultaneously continuously props open the air bag 19 and the rubber air chamber 18, the extruded rubber air chamber 18 contracts, the air in the shaft sleeve 124 is pressed into the communicating pipe 20 and props open the sealing cover plate 21, the air is pressed into the air bag 19, the air bag 19 is continuously inflated and expanded, so that a better sealing effect is achieved, the air pressure in the air bag 19 is higher than the air pressure in the rubber air chamber 18, the sealing cover plate 21 is tightly attached to the end part of the communicating pipe 20 to achieve unidirectional air conduction, the shaft sleeve 124 moves and simultaneously, the two clamping hoops 26 are used for pressing the outer side of the air bag 19, the shaft sleeve 124 is in contact with the air bag 19, the two air bags 19 cannot be excessively propped open by the shaft sleeve 124, the inner side of the air bag 19 is kept attached to the shaft sleeve 124, the rubber air chamber 18 after the air bag 19 passes through the shaft sleeve, the air chamber is recovered under the self elastic action, and simultaneously, the air is sucked into the air in the air inlet pipe 22, and released to the air in the air bag 19 through the air inlet valve, and then the air in the air bag 19, and the air chamber 24 is over-pressure in the air inlet valve.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be, nor should it be exhaustive of all embodiments. And obvious variations or modifications are possible which remain within the scope of the appended claims.
Claims (6)
1. An elastic wave auxiliary cement grouting water stop model test device comprises a test box (1) and an elastic wave emitter (2) arranged in the test box (1), and is characterized in that one side of the test box (1) is communicated with a grouting component, and the other side of the test box (1) is communicated with an adjustable pressurization water injection component; cement slurry is input into the test box (1) through the grouting assembly, and the adjustable pressurizing water injection assembly applies pressure to water and inputs the water into the test box (1);
partition boards (5) are arranged in the test box (1) along the height direction of the test box, the number of the partition boards (5) is more than two, the partition boards (5) are parallel to the top wall of the test box (1), the periphery of each partition board (5) is hermetically connected with the inner side wall of the test box (1), the partition boards (5) equally divide the inner space of the test box (1) into different test areas, and the elastic wave emitters (2) are arranged in the equally divided different test areas in the test box (1);
the grouting assembly comprises a cement slurry liquid inlet pipeline (3), grouting pipes (6) and a crushing structure (7), the number of the grouting pipes (6) is equal to the number of mutually independent experiment areas in the test box (1), one end of each grouting pipe (6) is inserted into different equally divided experiment areas of the test box (1), the other end of each grouting pipe (6) is communicated with the cement slurry liquid inlet pipeline (3), the crushing structure (7) is arranged in each mutually independent experiment area in the test box (1), and a feed inlet of the crushing structure (7) is communicated with a discharge end of each grouting pipe (6);
crushing structure (7) include crushing barrel (9), two crushing rollers (10), first adjusting part (12) and second adjusting part (13), two crushing roller (10) are followed the axis symmetry of crushing barrel (9) sets up the inside both sides in crushing barrel (9), waist type groove (122) have all been seted up along it radially to the tip both sides of crushing barrel (9), wear out respectively at the both ends of crushing roller (10) waist type groove (122) at crushing barrel (9) both ends, one the both ends of crushing roller (10) all set up first adjusting part (12), another the both ends of crushing roller (10) all are provided with second adjusting part (13), first adjusting part (12) with second adjusting part (13) all with the tip fixed connection of crushing barrel (9).
2. The test device for the elastic wave assisted cement grouting water stopping model according to claim 1, wherein the first adjusting component (12) and the second adjusting component (13) have the same structure, the first adjusting component (12) comprises a fixing plate (121), a supporting plate (125), an adjusting screw (126) and a shaft sleeve (124), the fixing plate (121) is fixedly connected to the top of the crushing barrel (9), a waist-shaped groove (122) which is the same as and coincides with the end of the crushing barrel (9) is also formed in the top of the fixing plate (121), a shaft sleeve (124) is arranged in the two coinciding waist-shaped grooves (122), one end, far away from the circle center of the crushing barrel (9), of the fixing plate (121) is fixedly connected to the side wall of the supporting plate (125), the supporting plate (125) and the fixing plate (121) are perpendicular to each other, a threaded hole is formed in the middle of the side wall of the supporting plate (125) along the radial direction of the crushing barrel (9), the adjusting screw (126) is in threaded connection with the threaded hole, the end of the adjusting screw (126) rotates with the shaft sleeve (124) and is connected to the outer side wall of the adjusting screw (126) and the top end of the grinding barrel (10) is connected to the transmission roller (10), and the transmission roller (10) is connected to the transmission roller (11), the bottom of the fixed plate (121) is provided with a rubber sealing plate (123), the middle of the rubber sealing plate (123) is provided with an opening, and the shaft sleeve (124) penetrates through the opening in the middle of the rubber sealing plate (123).
3. The test device for the elastic wave assisted cement grouting water stopping model as claimed in claim 2, wherein the top end of the crushing barrel (9) is communicated with an air inlet pipe (15), the other end of the air inlet pipe (15) penetrates through the side wall of the test box (1) and is communicated with an air pump (16), two sides of the inner wall of a waist-shaped groove (122) of the fixing plate (121) are fixedly connected with more than two rubber air chambers (18) along the length direction, the tops of the rubber air chambers (18) are fixedly connected with air bags (19), the opposite surfaces of the two air bags (19) are mutually attached, the opposite surfaces of the rubber air chambers (18) opposite in two sides are mutually close to each other, the tops of the fixing plate (121) are fixedly connected with retainer rings (25) along the periphery of the waist-shaped groove (122), the outer side walls of the two air bags (19) are in lap joint with the inner side wall of the retainer ring (25), the shaft sleeve (124) penetrates between the two rubber air chambers (18), the shaft sleeve (124) penetrates between the two air bags (19), the arc-shaped side walls of the shaft sleeve (124) are fixedly connected with connecting rods (27), the outer diameter of the two clamp rings (26) is matched with the clamp rings (26), the top of rubber air chamber (18) all has communicating pipe (20) with corresponding gasbag (19) bottom intercommunication, communicating pipe (20) are located one end top overlap joint in gasbag (19) has sealed apron (21), one side of sealed apron (21) with the inner wall bottom fixed connection of gasbag (19), the top intercommunication of gasbag (19) has blast pipe (23), blast pipe (23) second end is worn out test box (1), just the second end of blast pipe (23) is provided with relief valve (24), every the bottom of rubber air chamber (18) all communicates there is the intake pipe, the second end of intake pipe is worn out test box (1), the second end of intake pipe is provided with one-way admission valve (22).
4. The test device for the elastic wave assisted cement grouting water stop model according to claim 1, wherein both ends of the crushing cylinder (9) are fixedly connected with protective frames (14) through bolts, the middle of both ends of the crushing cylinder (9) is communicated with a material pipe, the top of the material pipe at the top end of the crushing cylinder (9) is fixedly connected with a threaded connecting pipe (8), and the threaded connecting pipe (8) is communicated with the grouting pipe (6).
5. The test device for the elastic wave assisted cement grouting water stop model according to claim 1, wherein the adjustable pressurizing water injection assembly comprises water injection pipes (4) and pressurizing valves (17) arranged on the water injection pipes (4), the number of the water injection pipes (4) is equal to the number of mutually independent experiment areas in the test box (1), and one end of each water injection pipe (4) is respectively inserted into different equal experiment areas in the test box (1) and is communicated with fluid.
6. The elastic wave assisted cement grouting water stop model test device according to claim 1, characterized in that the interior of different test areas equally divided in the test box (1) is filled with a mixture of soil and gravels, and the mass ratio of the soil to the gravels is 5.
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1085786A (en) * | 1977-06-24 | 1980-09-16 | Robert E. Simpson | Cartridge for grouting an anchor element in a hole of a support structure |
| CN203960859U (en) * | 2014-06-27 | 2014-11-26 | 中建三局第一建设工程有限责任公司 | Five rings sealing bag for prestress anchorage cable ejection for water plugging resistance sand |
| CN104712145B (en) * | 2015-02-16 | 2017-08-25 | 中交第二航务工程局有限公司 | In a kind of it is buried can slip casting waterstop grouting method |
| CN105067222B (en) * | 2015-07-23 | 2017-09-05 | 山东大学 | Porous media moves water grouting device and its method |
| CN105442528B (en) * | 2015-12-15 | 2017-12-05 | 浙江工业大学 | A kind of cement injection sheet pile with sealing ring |
| CN105672940A (en) * | 2016-02-02 | 2016-06-15 | 河南理工大学 | Integral grouting and water blocking and plugging device |
| CN107796929A (en) * | 2017-11-06 | 2018-03-13 | 华侨大学 | Elastic wave aids in cement ejection for water plugging model test apparatus |
| CN112458810B (en) * | 2020-11-19 | 2021-11-23 | 深圳市粤通建设工程有限公司 | Highway soil matrix disease cement grouting equipment |
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