CN105004509A - Water and mud outburst test device for tectonic fracture filling structure - Google Patents
Water and mud outburst test device for tectonic fracture filling structure Download PDFInfo
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 131
- 238000012360 testing method Methods 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 claims abstract description 14
- 239000002245 particle Substances 0.000 claims abstract description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 66
- 229910052757 nitrogen Inorganic materials 0.000 claims description 33
- 230000000630 rising effect Effects 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 238000005259 measurement Methods 0.000 claims description 4
- 238000005056 compaction Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000003325 tomography Methods 0.000 claims description 3
- 238000004088 simulation Methods 0.000 abstract description 6
- 230000000087 stabilizing effect Effects 0.000 abstract description 3
- 230000009172 bursting Effects 0.000 abstract 5
- 239000000945 filler Substances 0.000 abstract 1
- 238000013508 migration Methods 0.000 abstract 1
- 230000005012 migration Effects 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000009715 pressure infiltration Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012956 testing procedure Methods 0.000 description 1
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Abstract
A test device for simulating water and mud bursting disasters of a structural fracture filling structure in traffic and hydraulic tunnels comprises a water and mud bursting test device, a water and mud bursting test device and a water and mud bursting test device. The invention discloses a water inrush and mud inrush test device for a structural fracture filling structure, which is characterized by comprising a pressure loading device, an inrush channel simulation device, a water pressure pressurizing and pressure stabilizing device and a data acquisition and analysis device, wherein the pressure loading device is arranged at the top and the bottom of the inrush channel simulation device and provides axial pressure for the inrush channel simulation device; the water pressure pressurizing and stabilizing device is connected with the top of the surging channel simulating device through a water inlet pipe and provides water pressure with stable pressure for the surging channel simulating device; the data acquisition and analysis device is arranged on a water outlet pipe at the bottom of the gushing channel simulation device. The water-bursting and mud-bursting test device for the tectonic fracture filling structure can simulate the migration condition of filler particles with different particle sizes in the water bursting process of the tectonic fracture filling structure.
Description
Technical field
The present invention relates to traffic and Hydraulic Tunnel field of engineering technology, especially a kind ofly to dash forward the test unit of mud disaster for simulating tectonic fissure filling structure gushing water in traffic and Hydraulic Tunnel.
Background technology
Tectonic fissure filling structure gushing water mud of dashing forward is the multiple engineering project disaster of traffic and Hydraulic Tunnel construction, and the tectonic fissure filling structure gushing water mud disaster the lighter that dashes forward can affect engineering construction and operation, and severe one can cause heavy economic losses and even casualties.Be limited to tectonic fissure filling structure gushing water to dash forward the disguise of mud disaster source, the complicacy of pregnant calamity geologic media, make the dash forward prediction of mud disaster of tectonic fissure filling structure gushing water in traffic and Hydraulic Tunnel very difficult, become a study hotspot and the difficult point in this field.
Given this, Chinese scholars has carried out a large amount of research work for the problems referred to above, and wherein PHYSICAL MODELING OF IN is one of the most frequently used, the most effective means.But in realistic simulation process, because the dash forward influence factor of mud process of tectonic fissure filling structure gushing water is more, all there is obvious defect in relevant gushing water mud physical test analogue means of dashing forward, such as patent 2008100453044 discloses a kind of large scale rock sample high pressure infiltration experiment device, but it is tested for rock sample; Patent CN101308126A discloses a kind of analogue means excavating gushing water, but its maximum hydraulic pressure that bears is only 1MPa, and its compression system is difficult to lasting voltage stabilizing, can not meet tunnel gushing water under high artesian effect and to dash forward the requirement of mud test simulation.As can be seen here, relevant tectonic fissure gushing water mud test unit of dashing forward awaits further improving.
Summary of the invention
To be solved by this invention is exactly in existing traffic and Hydraulic Tunnel, all there is the problem of obvious defect in the dash forward physical test analogue means of mud disaster of tectonic fissure filling structure gushing water, a kind of tectonic fissure filling structure gushing water is provided to dash forward mud test unit, structure is simple, rigidity is large, intensity is high, sealing is better, measurement data is accurate, and the tectonic fissure filling structure gushing water can simulated under dissimilar, different prominent water burst condition is dashed forward mud test unit.
Tectonic fissure filling structure gushing water of the present invention is dashed forward mud test unit, it is characterized in that this device comprises pressure loading device, prominent gushes tunnels analogy device, hydraulic pressure pressurization and stable-pressure device and data acquisition and analytical equipment, pressure loading device is arranged on prominent top and bottom of gushing tunnels analogy device, and gushing tunnels analogy device for dashing forward provides axle pressure; Hydraulic pressure pressurization and stable-pressure device are gushed tunnels analogy device top by water inlet pipe be connected with prominent, and gushing tunnels analogy device for dashing forward provides hydraulic pressure with steady pressure; Described data acquisition and analytical equipment are arranged on prominent gushing on the rising pipe of tunnels analogy bottom of device.
Described pressure loading device is electronic universal tester, provides maximum test pressure to be 300kN.
The described prominent tunnels analogy device that gushes comprises piston, cylinder barrel and porous disc, and cylindrically, wall thickness is greater than 15mm to cylinder barrel; Piston is two, is separately positioned on cylinder barrel top and bottom, and the piston at top is connected with water inlet pipe, and the piston of bottom is connected with rising pipe; Described porous disc is three pieces, and point upper, middle and lower are set in sequence in cylinder barrel inside, and wherein upper and lower two pieces of porous discs are connected with two pistons respectively, and middle one piece of porous disc is fixed on cylinder barrel centre position.
Described porous disc is provided with permeable hole, the porous disc that three pieces of upper, middle and lower are arranged, its permeable hole diameter is respectively 10mm, 2mm and 5mm, allows the material by being not more than its permeable hole diameter to pass through respectively; The permeable felt of one deck is also provided with topmost bottom one piece of porous disc.
Described piston lower portion is provided with " O " RunddichtringO, lift-off seal effect.
Described hydraulic pressure pressurization and stable-pressure device comprise constant pressure water tank and high pressure nitrogen pressue device, constant pressure water tank comprises water intaking valve, outlet valve, nitrogen filling line, water intaking valve is arranged on constant pressure water tank top, outlet valve is arranged on constant pressure water tank bottom, and be connected with water inlet pipe, nitrogen filling line is connected with high pressure nitrogen pressue device; High pressure nitrogen pressue device is composed in series by several bottles of high-pressure nitrogen bottles.
Described data acquisition and analytical equipment comprise seepage pressure sensor, flow takes into account silt particle tripping device, for continual image data and image and carry out data analysis, monitoring tectonic fissure filling structure gushing water is dashed forward the change of seepage pressure, gushing water amount and prominent mud amount in mud process.
Described three pieces spaces between porous disc and cylinder barrel form two test cavitys, to dash forward mud test for carrying out tectonic fissure filling structure stuff gushing water.
Described tectonic fissure filling structure gushing water is dashed forward mud test unit, carries out experimental test by following steps:
(1) upper and lower two parts are divided into insert in model test cavity respectively tectonic fissure filling structure stuff, and compacting, compaction pressure is as the criterion according to the actual measurement terrestrial stress of simulated tomography, and this stuff component is determined by the material composition of the tectonic fissure filling structure stuff sample of collection in worksite and stuff structural character parameter;
(2) after tectonic fissure filling structure stuff have been laid, gush tunnels analogy device by dashing forward and be placed on electronic universal tester, by electronic universal tester, vertical load is applied to setting value to tectonic fissure filling structure stuff;
(3) by connecting line, constant pressure water tank compound to high pressure nitrogen pressue device and gas-liquid is connected, the water intaking valve on constant pressure water tank top is connected to resource of water supply simultaneously;
(4) by high-pressure water pipe, constant pressure water tank is connected with the prominent water inlet pipe gushing tunnels analogy device top;
(5) gush that tunnels analogy bottom of device water outlet pipe part arranges seepage pressure sensor, flow takes into account silt particle tripping device prominent;
(6) regulate high pressure nitrogen pressue device, in constant pressure water tank, inject high pressure nitrogen by high-pressure nitrogen bottle group, then gush to prominent the water source injecting stable pressure in tunnels analogy device by constant pressure water tank;
(7) tectonic fissure filling structure gushing water is dashed forward in mud process, data acquisition and the continual image data of analytical equipment and image, and monitoring tectonic fissure filling structure gushing water is dashed forward the change of seepage pressure, gushing water amount and prominent mud amount in mud process.
Tectonic fissure filling structure gushing water of the present invention is dashed forward mud test unit, and adopt the thick steel pipe of high strength and steel plate as rig for model test, model integral rigidity is higher, can bear larger on-load pressure; Between model cylinder barrel and piston, arrange " O " type rubber ring, water sealing effect is better; By arranging three layers are respectively 10mm, 2mm and 5mm permeable hole porous disc with diameter, the transport conditions of tectonic fissure filling structure different-grain diameter stuff particle in gushing water process can be simulated; Apply water pressure by the compound constant pressure water tank of gas-liquid, water pressure can be regulated more accurately; The vertical pressure charger tectonic fissure filling structure gushing water can simulated under differently stress condition is dashed forward mud process.
Accompanying drawing explanation
To be that the present invention is prominent gush tunnels analogy apparatus structure schematic diagram to Fig. 1.
Fig. 2 is constant pressure water tank structural representation of the present invention.
Wherein, pressure loading device 1, data acquisition and analytical equipment 2, water inlet pipe 3, rising pipe 4, piston 5, cylinder barrel 6, porous disc 7, O-ring seal 8, constant pressure water tank 9, water intaking valve 10, outlet valve 11, nitrogen filling line 12, test cavity 13, permeable felt 14.
Embodiment
Embodiment 1: a kind of tectonic fissure filling structure gushing water is dashed forward mud test unit, comprises pressure loading device 1, prominently gushes tunnels analogy device, hydraulic pressure pressurization and stable-pressure device and data acquisition and analytical equipment 2, wherein:
(1) pressure loading device 1 is electronic universal tester, provides maximum test pressure to be 300kN, is arranged on prominent top and bottom of gushing tunnels analogy device, and gushing tunnels analogy device for dashing forward provides axle pressure;
(2) hydraulic pressure pressurization and stable-pressure device are gushed tunnels analogy device top by water inlet pipe 3 and are connected with dashing forward, hydraulic pressure pressurization and stable-pressure device comprise constant pressure water tank 9 and high pressure nitrogen pressue device, constant pressure water tank 9 comprises water intaking valve 10, outlet valve 11, nitrogen filling line 12, water intaking valve 10 is arranged on constant pressure water tank 9 top, outlet valve 11 is arranged on constant pressure water tank 9 bottom, and be connected with water inlet pipe 3, nitrogen filling line 12 is connected with high pressure nitrogen pressue device; High pressure nitrogen pressue device is composed in series by several bottles of high-pressure nitrogen bottles, injects high pressure nitrogen by high-pressure nitrogen bottle group in constant pressure water tank 9, then gushes to prominent the water source injecting stable pressure in tunnels analogy device by constant pressure water tank 9;
(3) data acquisition and analytical equipment 2 are arranged on to dash forward and gush on the rising pipe 4 of tunnels analogy bottom of device, comprise seepage pressure sensor, flow takes into account silt particle tripping device, for data acquisition and the continual image data of analytical equipment 2 and image, monitoring tectonic fissure filling structure gushing water is dashed forward the change of seepage pressure, gushing water amount and prominent mud amount in mud process.
This is prominent gushes tunnels analogy device and comprises piston 5, cylinder barrel 6 and porous disc 7, and cylindrically, wall thickness is greater than 15mm to cylinder barrel 6; Piston 5 is two, is separately positioned on cylinder barrel 6 top and bottom, and the piston 5 at top is connected with water inlet pipe 3, and the piston 5 of bottom is connected with rising pipe 4; Described porous disc 7 is three pieces, and it is inner that point upper, middle and lower are set in sequence in cylinder barrel 6, and wherein upper and lower two pieces of porous discs 7 are connected with two pistons 5 respectively, and middle one piece of porous disc 7 is fixed on cylinder barrel 6 centre position.Meanwhile, porous disc 7 is provided with permeable hole, the porous disc 7 that three pieces of upper, middle and lower are arranged, its permeable hole diameter is respectively 10mm, 2mm and 5mm, allows the material by being not more than its permeable hole diameter to pass through respectively.Piston 5 bottom is also provided with " O " RunddichtringO 8, lift-off seal effect, is also provided with the permeable felt 14 of one deck topmost bottom one piece of porous disc 7.Space between three pieces of porous discs 7 and cylinder barrel 6 forms two and tests cavity 13, for tectonic fissure filling structure stuff.
This tectonic fissure filling structure gushing water is dashed forward mud test unit, and concrete testing procedure is as follows:
(1) upper and lower two parts are divided into insert in model test cavity 13 respectively according to a certain percentage tectonic fissure filling structure stuff, and compacting, compaction pressure is as the criterion according to the actual measurement terrestrial stress of simulated tomography, and this stuff component is determined by the material composition of the tectonic fissure filling structure stuff sample of collection in worksite and stuff structural character parameter;
(2) after tectonic fissure filling structure stuff have been laid, gush tunnels analogy device by dashing forward and be placed on electronic universal tester, by electronic universal tester, vertical load is applied to setting value to tectonic fissure filling structure stuff;
(3) by connecting line, constant pressure water tank 9 compound to high pressure nitrogen pressue device and gas-liquid is connected, the water intaking valve 10 on constant pressure water tank 9 top is connected to resource of water supply simultaneously;
(4) by high-pressure water pipe, constant pressure water tank 9 is connected with the prominent water inlet pipe 3 gushing tunnels analogy device top;
(5) gush that tunnels analogy bottom of device rising pipe 4 place arranges seepage pressure sensor, flow takes into account silt particle tripping device prominent;
(6) regulate high pressure nitrogen pressue device, in constant pressure water tank 9, inject high pressure nitrogen by high-pressure nitrogen bottle group, then gush to prominent the water source injecting stable pressure in tunnels analogy device by constant pressure water tank 9;
(7) tectonic fissure filling structure gushing water is dashed forward in mud process, data acquisition and the continual image data of analytical equipment 2 and image, and monitoring tectonic fissure filling structure gushing water is dashed forward the change of seepage pressure, gushing water amount and prominent mud amount in mud process.
Claims (9)
1. a tectonic fissure filling structure gushing water is dashed forward mud test unit, it is characterized in that this device comprises pressure loading device (1), prominent gushes tunnels analogy device, hydraulic pressure pressurization and stable-pressure device and data acquisition and analytical equipment (2), pressure loading device (1) is arranged on prominent top and bottom of gushing tunnels analogy device, and gushing tunnels analogy device for dashing forward provides axle pressure; Hydraulic pressure pressurization and stable-pressure device are gushed tunnels analogy device top by water inlet pipe (3) be connected with prominent, and gushing tunnels analogy device for dashing forward provides hydraulic pressure with steady pressure; Described data acquisition and analytical equipment (2) are arranged on prominent gushing on the rising pipe of tunnels analogy bottom of device.
2. tectonic fissure filling structure gushing water as claimed in claim 1 is dashed forward mud test unit, it is characterized in that described pressure loading device (1) is electronic universal tester, provides maximum test pressure to be 300kN.
3. tectonic fissure filling structure gushing water as claimed in claim 1 is dashed forward mud test unit, and it is characterized in that the described prominent tunnels analogy device that gushes comprises piston (5), cylinder barrel (6) and porous disc (7), cylindrically, wall thickness is greater than 15mm to cylinder barrel (6); Piston (5) is two, is separately positioned on cylinder barrel (6) top and bottom, and the piston (5) at top is connected with water inlet pipe (3), and the piston (5) of bottom is connected with rising pipe; Described porous disc (7) is three pieces, and it is inner that point upper, middle and lower are set in sequence in cylinder barrel (6), and wherein upper and lower two pieces of porous discs (7) are connected with two pistons (5) respectively, and middle one piece of porous disc (7) is fixed on cylinder barrel (6) centre position.
4. tectonic fissure filling structure gushing water as claimed in claim 3 is dashed forward mud test unit, it is characterized in that described porous disc (7) is provided with permeable hole, the porous disc (7) that three pieces of upper, middle and lower are arranged, its permeable hole diameter is respectively 10mm, 2mm and 5mm, allows the material by being not more than its permeable hole diameter to pass through respectively; Topmost one piece of porous disc (7) bottom is also provided with the permeable felt of one deck (14).
5. tectonic fissure filling structure gushing water as claimed in claim 1 is dashed forward mud test unit, it is characterized in that described piston (5) bottom is provided with " O " RunddichtringO (8), lift-off seal effect.
6. tectonic fissure filling structure gushing water as claimed in claim 1 is dashed forward mud test unit, it is characterized in that described hydraulic pressure pressurization and stable-pressure device comprise constant pressure water tank (9) and high pressure nitrogen pressue device, constant pressure water tank (9) comprises water intaking valve (10), outlet valve (11), nitrogen filling line (12), water intaking valve (10) is arranged on constant pressure water tank (9) top, outlet valve (11) is arranged on constant pressure water tank (9) bottom, and be connected with water inlet pipe (3), nitrogen filling line (12) is connected with high pressure nitrogen pressue device; High pressure nitrogen pressue device is composed in series by several bottles of high-pressure nitrogen bottles.
7. tectonic fissure filling structure gushing water as claimed in claim 1 is dashed forward mud test unit, it is characterized in that described data acquisition and analytical equipment (2) comprise seepage pressure sensor, flow takes into account silt particle tripping device, for data acquisition and analytical equipment (2) continual image data and image, monitoring tectonic fissure filling structure gushing water is dashed forward the change of seepage pressure, gushing water amount and prominent mud amount in mud process.
8. tectonic fissure filling structure gushing water as claimed in claim 3 is dashed forward mud test unit, the space that it is characterized in that between three pieces of described porous discs (7) and cylinder barrel (6) forms two and tests cavity (13), to dash forward mud test for carrying out tectonic fissure filling structure stuff gushing water.
9. tectonic fissure filling structure gushing water as claimed in claim 1 is dashed forward mud test unit, it is characterized in that described tectonic fissure filling structure gushing water is dashed forward mud test unit, carries out experimental test by following steps:
(1) upper and lower two parts are divided into insert in model test cavity (13) respectively tectonic fissure filling structure stuff, and compacting, compaction pressure is as the criterion according to the actual measurement terrestrial stress of simulated tomography, and this stuff component is determined by the material composition of the tectonic fissure filling structure stuff sample of collection in worksite and stuff structural character parameter;
(2) after tectonic fissure filling structure stuff have been laid, gush tunnels analogy device by dashing forward and be placed on electronic universal tester, by electronic universal tester, vertical load is applied to setting value to tectonic fissure filling structure stuff;
(3) by connecting line, constant pressure water tank (9) compound to high pressure nitrogen pressue device and gas-liquid is connected, the water intaking valve (10) on constant pressure water tank (9) top is connected to resource of water supply simultaneously;
(4) by high-pressure water pipe, constant pressure water tank (9) is connected with the prominent water inlet pipe (3) gushing tunnels analogy device top;
(5) gush that tunnels analogy bottom of device water outlet pipe part arranges seepage pressure sensor, flow takes into account silt particle tripping device prominent;
(6) regulate high pressure nitrogen pressue device, in constant pressure water tank (9), inject high pressure nitrogen by high-pressure nitrogen bottle group, then gush to prominent the water source injecting stable pressure in tunnels analogy device by constant pressure water tank (9);
(7) tectonic fissure filling structure gushing water is dashed forward in mud process, data acquisition and analytical equipment (2) continual image data and image, and monitoring tectonic fissure filling structure gushing water is dashed forward the change of seepage pressure, gushing water amount and prominent mud amount in mud process.
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Cited By (10)
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| CN105929130A (en) * | 2016-04-20 | 2016-09-07 | 山东大学 | Constitutive determination apparatus and determination method for fault gouge |
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| CN106872334A (en) * | 2017-03-09 | 2017-06-20 | 中铁二院昆明勘察设计研究院有限责任公司 | A kind of method of the prominent mud Excavation simulation device of gushing water and the prominent mud disaster of simulation gushing water |
| CN107356510A (en) * | 2017-08-11 | 2017-11-17 | 山东科技大学 | Simulate face surrounding rock water inrush channel extension evolution pilot system |
| CN108169455A (en) * | 2017-12-14 | 2018-06-15 | 山东大学 | A kind of filling medium true triaxial seepage failure laboratory and test method |
| CN108414417A (en) * | 2018-01-30 | 2018-08-17 | 山东科技大学 | Simulate porous media rock mass infiltration lane fluid migration pilot system |
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| CN106872334A (en) * | 2017-03-09 | 2017-06-20 | 中铁二院昆明勘察设计研究院有限责任公司 | A kind of method of the prominent mud Excavation simulation device of gushing water and the prominent mud disaster of simulation gushing water |
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Application publication date: 20151028 |