CN103411751B - Water grouting test device is moved in a kind of visual intersection crack - Google Patents
Water grouting test device is moved in a kind of visual intersection crack Download PDFInfo
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- CN103411751B CN103411751B CN201310351203.0A CN201310351203A CN103411751B CN 103411751 B CN103411751 B CN 103411751B CN 201310351203 A CN201310351203 A CN 201310351203A CN 103411751 B CN103411751 B CN 103411751B
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Abstract
The invention discloses a kind of visual intersection crack and move water grouting test device, comprise slurries gathering-device, also comprise and intersect crack platform, intersect that crack platform comprises bracing frame, the intersection crack testing laboratory be arranged on bracing frame, be arranged on intersect crack testing laboratory inwall intersection crack, be arranged on the flow sensor that intersects in the testing laboratory of crack and be arranged on the pressure transducer intersected in the testing laboratory of crack; Also comprise to intersecting the dynamic water water supply installation of crack testing laboratory water filling and the air pressure pulp injection device to the slip casting of intersection crack testing laboratory, intersection crack testing laboratory is connected with slurries gathering-device.The present invention carries out grouting simulation test and analysis under can be implemented in intersection crack and river channels.
Description
Technical field
The present invention relates to a kind of crack that intersects and move test unit and the test method of water slip casting model test, be specifically related to a kind ofly consider that water grouting test device is moved in the visual intersection crack under dominant flowing path impact.Be applicable to the slip casting process under Simulation of Complex Fracture Networks river channels, research slip casting Diffusion Law and blocking in flowing water mechanism.
Background technology
Build in tunneling and underground engineering process in rich groundwater or karst area, be often faced with the challenge of structure antiseepage, stratum consolidation in construction, grouting method is the water reinforcement measure extensively adopted in engineering practice.By carrying out the effective slip casting under river channels, the effect of water reinforcement can be played.The Fracture Networks that there is different stage on the one hand in crack rock is the main thoroughfare of seepage action of ground water, and the flowing of underground water produces totally unfavorable impact for grouting serous fluid viscosity B coefficent and gel characteristic on the other hand.Move in water slip casting process at crack rock, the Diffusion Law of slurries under the circumstance of flowing water of crack has conclusive effect for water blockoff and consolidation effect.
Therefore, this area is starved of to be studied the Diffusion Law of slurries under the river channels of crack and plugging effect influence factor, and the grouting simulation test carried out under the river channels of intersection crack, and the grout diffusion model set up based on this under the river channels of intersection crack is a kind of effective research means.Its gordian technique is the simulation of intersection crack environment and the simulation of circumstance of flowing water, namely can reflect the state of the underground percolation field of the objective reality of dominant flowing path in crack rock.Due to the restriction of test condition, also there is limitation in the grouting test device both at home and abroad under simulation crack rock river channels and the research of test method, correlation test platform also compares shortage.
In the prior art, " crack grouting visualization test device of complex condition " discloses the grouting simulation test device under the condition of a kind of complicated crack, method of testing is spread to complicated crack condition and the slip casting under loading environment and has carried out relevant elaboration, but in its device single fissure-plane condition and actual crack rock in the percolation path of Fracture Networks of intersecting that exists there is relatively big difference part, fissure-plane can not adjustable inclination, and fissure-plane width adjusting scope is little, its size is relatively little simultaneously, comparatively significantly boundary effect is there is when simulating slurries diffusion in crack rock." slip casting diffusion test set " discloses a kind of grouting test analogue means, relevant elaboration has been carried out to the slip casting diffusion method of testing in single fissure-plane, but cannot river channels under Simulation of Complex Fracture Networks condition, slip casting process does not realize the automation collection of the important parameters such as visualized and flow velocity osmotic pressure, not ideal enough to the simulate effect of the actual slip casting in scene situation.
Summary of the invention
Object of the present invention is just to carry out simulation laboratory test to tunnel gushing water mud disaster grouting treatment of dashing forward, and research intersects slurries diffusion and shutoff mechanism under the river channels of crack.Propose a kind of visual intersection crack and move water grouting test device, grouting simulation test and analysis is carried out under can be implemented in intersection crack and river channels, test unit considers the similarity with dominant flowing path in actual Fracture Networks, and dynamic water flow condition spreads grouting serous fluid and the impact of gel shutoff, and achieve the visual of process of the test, adopt optical fiber type velocimeter and osmometer to the slurries at dynamic water slip casting diverse location place, flow rate of water flow and osmotic pressure parameter carry out Real-time Collection record, and by achieving the automatic measurement of process of the test with the connection of computer control system.
The object of the present invention is achieved like this:
Water grouting test device is moved in a kind of visual intersection crack, comprise slurries gathering-device, also comprise and intersect crack platform, intersect that crack platform comprises bracing frame, the intersection crack testing laboratory be arranged on bracing frame, be arranged on intersect crack testing laboratory inwall intersection crack, be arranged on the flow sensor that intersects in the testing laboratory of crack and be arranged on the pressure transducer intersected in the testing laboratory of crack;
Also comprise to intersecting the dynamic water water supply installation of crack testing laboratory water filling and the air pressure pulp injection device to the slip casting of intersection crack testing laboratory, intersection crack testing laboratory is connected with slurries gathering-device,
Flow sensor is all connected with data collector with pressure transducer.
Water grouting test device is moved in a kind of visual intersection crack, also comprises the camera be arranged on above the platform of intersection crack, also comprises the image pick-up card be connected with camera and the host computer be connected with image pick-up card.
Intersection crack testing laboratory as above comprises slurries and collects joint, slurries hybrid juction and board-like transparent cavity, board-like transparent cavity both ends open, slurries are collected joint and are arranged on board-like transparent cavity one end, slurries hybrid juction is arranged on the board-like transparent cavity other end, slurries are collected joint and are connected with slurries gathering-device, slurries hybrid juction is connected with air pressure pulp injection device, and grouting hole is positioned on the second glass plate longitudinal centre line, distance water inlet end 400-800mm.
Board-like transparent cavity as above comprises the first glass plate and the second glass plate, and the first glass plate is positioned at the second glass plate, and intersection crack is arranged on the inwall of the second glass plate, and flow sensor and pressure transducer are arranged on the inwall of the second glass plate
Described bracing frame is screw-type lifting jack.
Intersection crack as above is orthogonal crack or intersects crack at random, and the spacing between the first glass plate and the second glass plate can regulate within the scope of 1mm ~ 30mm.
First glass plate as above and the second glass plate are square, and the length and width of the first glass plate are thick is respectively 2400mm*1200mm*20mm, and the length and width of the second glass plate are thick is respectively 2400mm*1200mm*50mm; In orthogonal crack, wherein the width in one group of equidirectional crack is 5mm, and the degree of depth is 10mm, and is 45 degree with the angle of the long side direction of the second glass plate; Another width organizing equidirectional crack is 2mm, and the degree of depth is 10mm.
5 flow sensors are arranged symmetrically with respectively along the longitudinal centre line both sides of intersection crack platform within the scope of distance grouting hole 500mm, 5 pressure transducers are arranged symmetrically with respectively along the longitudinal centre line both sides of intersection crack platform within the scope of distance grouting hole 500mm, beyond distance grouting hole 500mm scope, longitudinal centre line both sides along test platform intersection crack platform are arranged symmetrically with 8 flow sensors respectively, and the longitudinal centre line both sides along test platform intersection crack platform are arranged symmetrically with 8 pressure transducers respectively.
Dynamic water water supply installation as above comprises support and is placed on the water tank on support, and water tank comprises water inlet, water delivering orifice and is arranged on the water level defining baffle in water tank, and water tank is also provided with spout hole;
Described air pressure pulp injection device comprises gas tank and slurry can, and gas tank is connected with slurry can by pressure regulator valve, slurry can with intersect crack testing laboratory and be connected.
Current flow out by moving water water supply installation, be divided into two strands of current to enter enter intersection crack testing laboratory from the sidepiece of intersection crack testing laboratory via three-way connection.
Water grouting test method is moved in a kind of visual intersection crack, comprises the following steps,
Step 1: regulate and intersect crack platform to horizontality, arrange flow sensor and pressure transducer, air pressure pulp injection device is connected to the grouting hole being arranged on and intersecting on the platform of crack by grouting pipeline, and dynamic water water supply installation is connected to intersection crack testing laboratory by dynamic water supply channel via three-way connection; 5 flow sensors are arranged symmetrically with respectively along the longitudinal centre line both sides of intersection crack platform within the scope of distance grouting hole 500mm, 5 pressure transducers are arranged symmetrically with respectively along the longitudinal centre line both sides of intersection crack platform within the scope of distance grouting hole 500mm, beyond distance grouting hole 500mm scope, longitudinal centre line both sides along test platform intersection crack platform are arranged symmetrically with 8 flow sensors respectively, and the longitudinal centre line both sides along test platform intersection crack platform are arranged symmetrically with 8 pressure transducers respectively;
Step 2: flow sensor and pressure transducer are connected to data collector, setting frequency acquisition and data storage parameters, the crack platform that will intersect adopts glass cement sealing intact;
Step 3: according to testing program preparation grouting serous fluid, wherein grouting serous fluid can adopt single liquid grout or cement-silicate dual slurry or other chemical grout, inject slurry can for subsequent use, air pressure pulp injection device pipeline is connected intact, and leaves and takes slurries sample to producing for measuring serum density, viscosity and gel time;
Step 4: provide different dynamic water heads by adjustment water tank height, measure dynamic water flow velocity by flow sensor after flow speed stability;
Step 5: open air pressure pulp injection device, grouting pressure is set to predetermined value, carries out slip casting diffusion under river channels and shutoff is tested;
Step 6: by being arranged on the high-definition camera above test platform, image record is carried out to slip casting process;
Step 7: treat that slurries diffuse to water delivering orifice border or dynamic water current stopped slip casting by after slurries shutoff completely, cleaning filling system and test platform;
Step 8: change different tests condition, can obtain the impact of crack environment, dynamic water flow velocity, slurry viscosity, slurries gel time-varying characteristics, slurries dispersion resistance confrontation slurries Diffusion Law and blocking in flowing water.The present invention compared with prior art, has following effect:
1, invent a kind of visual intersection crack and move water grouting test device, under can be implemented in intersection crack and river channels, carry out grouting simulation test and analysis;
2, test unit considers the similarity with actual Fracture Networks, can simulate the feature of dominant flowing path, and dynamic water flow condition spreads grouting serous fluid and the impact of gel shutoff;
3, fissure-plane planar dimension is large, tilt adjustable, and fissure-plane width can regulate within the scope of 1mm ~ 30mm;
4, achieve the visual of process of the test, Real-time Collection record can be carried out to flow velocity and osmotic pressure parameter, and image record analysis can be carried out to process of the test.
Accompanying drawing explanation
Fig. 1 is that water grouting test device one-piece construction figure is moved in intersection crack provided by the invention;
Fig. 2 is test-bed structural drawing;
Fig. 3 (a) is the structural drawing in orthogonal crack for intersecting crack platform;
Fig. 3 (b) is intersect the structural drawing in crack at random for intersecting crack platform
Fig. 4 is air pressure pulp injection system construction drawing;
The three-dimensional structure diagram that Fig. 5 (a) is water tank;
The side-looking structural drawing that Fig. 5 (b) is water tank;
Fig. 5 (c) is dynamic water water supply installation three-dimensional structure diagram;
Fig. 6 is image capturing system arrangenent diagram;
Reference numeral is as follows:
1-slurries gathering-device; 2-intersection crack platform; 3-bracing frame; 4-intersects crack testing laboratory; 6-flow sensor; 7-pressure transducer; 8-moves water water supply installation; 9-air pressure pulp injection device; 10-camera; 11-image pick-up card; 12-host computer; 401-slurries collect joint; 402-slurries hybrid juction; The board-like transparent cavity of 403-; 404-grouting hole; 405-first glass plate; 406-second glass plate; 801-support; 802-water tank; 803-water inlet; 804-water delivering orifice; 805-water level defining baffle; 806-spout hole; 901-gas tank; 902-slurry can; 903-pressure regulator valve.
Embodiment
Below in conjunction with accompanying drawing water grouting test device is moved to visual intersection crack of the present invention and test method is further described in detail:
Water grouting test device is moved in a kind of visual intersection crack, comprise slurries gathering-device 1, also comprise and intersect crack platform 2, intersect that crack platform 2 comprises bracing frame 3, the intersection crack testing laboratory 4 be arranged on bracing frame 3, be arranged on intersect crack testing laboratory 4 inwall intersection crack, be arranged on the flow sensor 6 that intersects in crack testing laboratory 4 and be arranged on the pressure transducer 7 intersected in crack testing laboratory 4;
Also comprise to intersecting the dynamic water water supply installation 8 of crack testing laboratory 4 water filling and the air pressure pulp injection device 9 to the slip casting of intersection crack testing laboratory 4, intersection crack testing laboratory 4 is connected with slurries gathering-device 1,
Flow sensor 6 is all connected with data collector with pressure transducer 7.
Water grouting test device is moved in a kind of visual intersection crack, also comprises the camera 10 be arranged on above intersection crack platform 2, also comprises the image pick-up card 11 be connected with camera 10 and the host computer 12 be connected with image pick-up card 11.
Intersection crack testing laboratory 4 comprises slurries and collects joint 401, slurries hybrid juction 402 and board-like transparent cavity 403, board-like transparent cavity 403 both ends open, slurries are collected joint 401 and are arranged on board-like transparent cavity 403 one end, slurries hybrid juction 402 is arranged on board-like transparent cavity 403 other end, slurries are collected joint 401 and are connected with slurries gathering-device 1, slurries hybrid juction 402 is connected with air pressure pulp injection device 9, grouting hole 404 is positioned on the second glass plate longitudinal centre line, distance water inlet end 400-800mm.
Board-like transparent cavity 403 comprises the first glass plate 405 and the second glass plate 406, first glass plate 405 is positioned at above the second glass plate 406, intersection crack is arranged on the inwall of the second glass plate 406, and flow sensor 6 and pressure transducer 7 are arranged on the inwall of the second glass plate 406
Described bracing frame 3 is screw-type lifting jack.
Intersecting crack is orthogonal crack or intersects crack at random, and the spacing between the first glass plate 405 and the second glass plate 406 can regulate within the scope of 1mm ~ 30mm.
First glass plate 405 and the second glass plate 406 are square, and the length and width of the first glass plate 405 are thick is respectively 2400mm*1200mm*20mm, and the length and width of the second glass plate 406 are thick is respectively 2400mm*1200mm*50mm; In orthogonal crack, wherein the width in one group of equidirectional crack is 5mm, and the degree of depth is 10mm, and is 45 degree with the angle of the long side direction of the second glass plate 406; Another width organizing equidirectional crack is 2mm, and the degree of depth is 10mm.
5 flow sensors 6 are arranged symmetrically with respectively along the longitudinal centre line both sides of intersection crack platform 2 within the scope of distance grouting hole 404500mm, 5 pressure transducers 7 are arranged symmetrically with respectively along the longitudinal centre line both sides of intersection crack platform 2 within the scope of distance grouting hole 404500mm, beyond distance grouting hole 404500mm scope, longitudinal centre line both sides along test platform intersection crack platform 2 are arranged symmetrically with 8 flow sensors 6 respectively, and the longitudinal centre line both sides along test platform intersection crack platform 2 are arranged symmetrically with 8 pressure transducers 7 respectively.
The water tank 802 that dynamic water water supply installation 8 comprises support 801 and is placed on support 801, the water level defining baffle 805 that water tank 802 comprises water inlet 803, water delivering orifice 804 and is arranged in water tank 802, water tank 802 is also provided with spout hole 806;
Described air pressure pulp injection device 9 comprises gas tank 901 and slurry can 902, and gas tank 901 is connected with slurry can 902 by pressure regulator valve 903, slurry can 902 with intersect crack testing laboratory 4 and be connected.
Current flow out by moving water water supply installation 8, be divided into two strands of current to enter enter intersection crack testing laboratory 4 from the sidepiece of intersection crack testing laboratory 4 via three-way connection.
Water grouting test method is moved in a kind of visual intersection crack, comprises the following steps,
Step 1: regulate intersection crack platform 2 to horizontality, arrange flow sensor 6 and pressure transducer 7, air pressure pulp injection device 9 is connected to the grouting hole 404 being arranged on and intersecting on crack platform 2 by grouting pipeline, and dynamic water water supply installation 8 is connected to intersection crack testing laboratory 4 by dynamic water supply channel via three-way connection; 5 flow sensors 6 are arranged symmetrically with respectively along the longitudinal centre line both sides of intersection crack platform 2 within the scope of distance grouting hole 404500mm, 5 pressure transducers 7 are arranged symmetrically with respectively along the longitudinal centre line both sides of intersection crack platform 2 within the scope of distance grouting hole 404500mm, beyond distance grouting hole 404 (500mm) scope, longitudinal centre line both sides along test platform intersection crack platform 2 are arranged symmetrically with 8 flow sensors 6 respectively, and the longitudinal centre line both sides along test platform intersection crack platform 2 are arranged symmetrically with 8 pressure transducers 7 respectively;
Step 2: flow sensor 6 and pressure transducer 7 are connected to data collector, setting frequency acquisition and data storage parameters, the crack platform that will intersect adopts glass cement sealing intact;
Step 3: according to testing program preparation grouting serous fluid, wherein grouting serous fluid can adopt single liquid grout or cement-silicate dual slurry or other chemical grout, inject slurry can 902 for subsequent use, air pressure pulp injection device 9 pipeline is connected intact, and leaves and takes slurries sample to producing for measuring serum density, viscosity and gel time;
Step 4: provide different dynamic water heads by adjustment water tank height, measure dynamic water flow velocity by flow sensor after flow speed stability;
Step 5: open air pressure pulp injection device 9, grouting pressure is set to predetermined value, carries out slip casting diffusion under river channels and shutoff is tested;
Step 6: by being arranged on the high-definition camera above test platform, image record is carried out to slip casting process;
Step 7: treat that slurries diffuse to water delivering orifice border or dynamic water current stopped slip casting by after slurries shutoff completely, cleaning filling system and test platform;
Step 8: change different tests condition, can obtain the impact of crack environment, dynamic water flow velocity, slurry viscosity, slurries gel time-varying characteristics, slurries dispersion resistance confrontation slurries Diffusion Law and blocking in flowing water.
Fig. 1 is that water grouting test device one-piece construction figure is moved in intersection crack provided by the invention, can simulate the slip casting process of complex condition such as different size intersection crack, different circumstance of flowing water etc.Comprise test-bed, intersection crack platform, air pressure pulp injection system, dynamic water water supply installation, flow velocity and Osmotic Pressure Automatic Monitoring System, image capturing system, slurries collection measurement mechanism.
By the seepage channel in prefabricated different intersection Simulation of fracture network crack rock in process of the test, the circumstance of flowing water of constant flow rate is provided by dynamic water water supply installation, the injection of single liquid slurry or dual slurry is realized by air pressure pulp injection system, the intersection slurries at diverse location place, crack and the velocimeter osmotic pressure parameter of dynamic water is measured by flow velocity and osmotic pressure sensor monitoring system, carry out record by image capturing system to slip casting diffusion shutoff process to store, collect measuring system by slurries and slip casting waste liquid is recycled.
Fig. 2 is test-bed structural drawing, test-bed planar dimension is 2600mm × 1300mm, height is adjustable within the scope of 800mm ~ 1000mm, test-bed is connected with base by screw-type lifting jack, the integral elevating of test-bed and the adjustment of special angle can be realized, different crack dips can be simulated.
Fig. 3 is intersection crack platform structure figure, the crack platform that intersects is made up of upper and lower two pieces of poly (methyl methacrylate) plates, wherein descend poly (methyl methacrylate) plate long, wide, height is of a size of 2400mm × 1200mm × 50mm, engraving machine is adopted to cut out different fissure direction in surface on a glass, length, the Fracture Networks of width, it can be rule intersection Fracture Networks, two groups of orthogonal cracks are cut out in the present embodiment, width is respectively 5mm and 2mm, in order to simulate the crack passage of different opening width in actual rock cranny, the degree of depth is 10mm, in order to simulate the feature of crack rock at depth direction, and be convenient to cleaning, analog crossover crack is the crack combination of omnidirectional distribution, wherein 5mm width fracture set and poly (methyl methacrylate) plate long limit angle are 45 °, 2mm width fracture set poly (methyl methacrylate) plate long limit angle is 135 °, also can be the random intersection Fracture Networks made according to on-the-spot crack investigation statistics result in addition.Top poly (methyl methacrylate) plate length is of a size of 2400mm × 1200mm × 20mm, as the form of image acquisition in slip casting process, makes slip casting process visualization.By arranging the organic glass pad of different-thickness (being respectively 1mm, 2mm, 5mm) between upper and lower poly (methyl methacrylate) plate, fissure-plane height between upper and lower poly (methyl methacrylate) plate can regulate within the scope of 1mm ~ 30mm, the change of the different opening width of fissure-plane can be simulated, formed in fissure-plane and face and intersect the simultaneous seepage channel environment in crack.
Fig. 4 is air pressure pulp injection system construction drawing, adopt gas cylinder as slip casting power source, accurate, the stability contorting of grouting pressure can be realized by pressure maintaining valve, steady air flow enters in slurry can by gas cylinder via pressure maintaining valve, under gas pressure, slurries enter the pipeline be connected with slurry mixer, start by two covers the injection that filling system can realize dual slurry.
Fig. 5 is water water supply installation structural representation, dynamic water tank one end arranges water inlet and is connected with running water pipe, the other end sets out the mouth of a river and is connected with pipe stream-Crevice gold X-over, water level defining baffle is set in case, the current exceeding water level defining baffle will flow out from spout hole, ensureing that the head in dynamic water water supply process is stablized, by regulating the differing heights of dynamic water tank on tank bracket, the flow condition of different dynamic water flow velocity can be realized.
Fig. 6 is flow velocity and osmotic pressure sensor arrangenent diagram, adopt optical fiber turbine type sensor and osmotic pressure sensor, according to symmetric property placement sensor, realize moving the collection of slurry flow rate in water slip casting process, osmotic pressure information to intersecting crack under the prerequisite in as far as possible not disturbance flow field.
Arrange two high-definition cameras in Fig. 1, be fixed on the locating support of test-bed, realize the image acquisition record to key area around grouting hole and test unit entirety, image record material is used for the further quantitative test to river channels slip casting process.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Claims (4)
1. water grouting test device is moved in a visual intersection crack, comprise slurries gathering-device (1), it is characterized in that, also comprise and intersect crack platform (2), intersect that crack platform (2) comprises bracing frame (3), the intersection crack testing laboratory (4) be arranged on bracing frame (3), be arranged on intersect crack testing laboratory (4) inwall intersection crack, be arranged on the flow sensor (6) intersected in crack testing laboratory (4) and the pressure transducer (7) be arranged in intersection crack testing laboratory (4);
Also comprise to intersecting the dynamic water water supply installation (8) of crack testing laboratory (4) water filling and the air pressure pulp injection device (9) to intersection crack testing laboratory (4) slip casting, intersection crack testing laboratory (4) is connected with slurries gathering-device (1)
Flow sensor (6) is all connected with data collector with pressure transducer (7);
Also comprise the camera (10) being arranged on intersection crack platform (2) top, also comprise the image pick-up card (11) be connected with camera (10) and the host computer (12) be connected with image pick-up card (11);
Intersection crack testing laboratory (4) comprises slurries and collects joint (401), slurries hybrid juction (402) and board-like transparent cavity (403), board-like transparent cavity (403) both ends open, slurries are collected joint (401) and are arranged on board-like transparent cavity (403) one end, slurries hybrid juction (402) is arranged on board-like transparent cavity (403) other end, slurries are collected joint (401) and are connected with slurries gathering-device (1), slurries hybrid juction (402) is connected with air pressure pulp injection device (9), grouting hole (404) is positioned on the second glass plate longitudinal centre line, distance water inlet end 400-800mm,
Board-like transparent cavity (403) comprises the first glass plate (405) and the second glass plate (406), first glass plate (405) is positioned at the second glass plate (406) top, intersection crack is arranged on the inwall of the second glass plate (406), and flow sensor (6) and pressure transducer (7) are arranged on the inwall of the second glass plate (406);
Described bracing frame (3) is screw-type lifting jack;
Described intersection crack is orthogonal crack or intersects crack at random, and the spacing between the first glass plate (405) and the second glass plate (406) can regulate within the scope of 1mm ~ 30mm;
Described the first glass plate (405) and the second glass plate (406) are square, the length and width of the first glass plate (405) are thick is respectively 2400mm*1200mm*20mm, and the length and width of the second glass plate (406) are thick is respectively 2400mm*1200mm*50mm; In orthogonal crack, wherein the width in one group of equidirectional crack is 5mm, and the degree of depth is 10mm, and is 45 degree with the angle of the long side direction of the second glass plate (406); Another width organizing equidirectional crack is 2mm, and the degree of depth is 10mm.
2. water grouting test device is moved in the visual intersection crack of one according to claim 1, it is characterized in that, longitudinal centre line both sides along intersection crack platform (2) within the scope of distance grouting hole (404) 500mm are arranged symmetrically with 5 flow sensors (6) respectively, longitudinal centre line both sides along intersection crack platform (2) within the scope of distance grouting hole (404) 500mm are arranged symmetrically with 5 pressure transducers (7) respectively, beyond distance grouting hole (404) 500mm scope, longitudinal centre line both sides along test platform intersection crack platform (2) are arranged symmetrically with 8 flow sensors (6) respectively, longitudinal centre line both sides along test platform intersection crack platform (2) are arranged symmetrically with 8 pressure transducers (7) respectively.
3. water grouting test device is moved in the visual intersection crack of one according to claim 2, it is characterized in that, described dynamic water water supply installation (8) comprises support (801) and is placed on the water tank (802) on support (801), the water level defining baffle (805) that water tank (802) comprises water inlet (803), water delivering orifice (804) and is arranged in water tank (802), water tank (802) is also provided with spout hole (806);
Described air pressure pulp injection device (9) comprises gas tank (901) and slurry can (902), gas tank (901) is connected with slurry can (902) by pressure regulator valve (903), slurry can (902) with intersect crack testing laboratory (4) and be connected.
4. water grouting test device is moved in the visual intersection crack of one according to claim 3, it is characterized in that, current flow out by moving water water supply installation (8), be divided into two strands of current to enter enter intersection crack testing laboratory (4) from the sidepiece of intersection crack testing laboratory (4) via three-way connection.
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