CN106872334A - A kind of method of the prominent mud Excavation simulation device of gushing water and the prominent mud disaster of simulation gushing water - Google Patents
A kind of method of the prominent mud Excavation simulation device of gushing water and the prominent mud disaster of simulation gushing water Download PDFInfo
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- CN106872334A CN106872334A CN201710139052.0A CN201710139052A CN106872334A CN 106872334 A CN106872334 A CN 106872334A CN 201710139052 A CN201710139052 A CN 201710139052A CN 106872334 A CN106872334 A CN 106872334A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 94
- 238000009412 basement excavation Methods 0.000 title claims abstract description 51
- 238000004088 simulation Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000012360 testing method Methods 0.000 claims abstract description 60
- 239000000463 material Substances 0.000 claims abstract description 31
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 230000005641 tunneling Effects 0.000 claims abstract description 14
- 230000008569 process Effects 0.000 claims abstract description 11
- 238000012544 monitoring process Methods 0.000 claims description 36
- 230000005540 biological transmission Effects 0.000 claims description 15
- 238000005553 drilling Methods 0.000 claims description 6
- 238000002474 experimental method Methods 0.000 claims description 4
- 238000013461 design Methods 0.000 claims description 3
- 240000002853 Nelumbo nucifera Species 0.000 claims description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 claims description 2
- 235000006510 Nelumbo pentapetala Nutrition 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract description 3
- 239000011797 cavity material Substances 0.000 description 34
- 239000011435 rock Substances 0.000 description 10
- 229910000831 Steel Inorganic materials 0.000 description 5
- 230000008859 change Effects 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000005514 two-phase flow Effects 0.000 description 2
- 229940099259 vaseline Drugs 0.000 description 2
- 235000019082 Osmanthus Nutrition 0.000 description 1
- 241000333181 Osmanthus Species 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 238000009715 pressure infiltration Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012956 testing procedure Methods 0.000 description 1
Classifications
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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
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/088—Investigating volume, surface area, size or distribution of pores; Porosimetry
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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
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/082—Investigating permeability by forcing a fluid through a sample
-
- 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
- G01N33/24—Earth materials
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Pathology (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Remote Sensing (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The present invention relates to a kind of prominent mud Excavation simulation device of gushing water, including base, test cavity, the pressue device and water inlet that pressurize vertically, the test cavity side is provided with two excavation entrances, respectively positioned at the upper and lower sides of test cavity, by the excavation entrance of upside or downside to tunneling in chamber, test cavity is internally provided with Similar Material of Rockmass and the molten chamber of karst, and the Similar Material of Rockmass surrounds the molten chamber of karst；The test cavity is on base, the pressue device is located at test cavity top, water inlet is additionally provided with the test cavity, the method for further relating to be simulated using the device, rigidity of the present invention is big, intensity is high, sealing is preferable, measurement data is accurate, the rule of the prominent mud of gushing water in the Karst Tunnel digging process under the conditions of diverse location, different filling conditions and different pressures can be simulated, the scope of application is broad.
Description
Technical field
Opened for simulating Railway Tunnel the present invention relates to a kind of prominent mud Excavation simulation device of gushing water, more particularly to one kind
The device of the prominent mud disaster of Hidden Karst Under gushing water, the method for further relating to simulate the prominent mud disaster of gushing water, belong to high-speed railway during digging
Tunnel Engineering field.
Background technology
The total about 3.44 × 106km of Karst Regions of China area2, wherein, exposed karst area area is 9.07 × 105km2.Southwest
Based on cloud, expensive, osmanthus, including river, Chongqing, Hubei Province, Hunan some areas, karst area is up to 5.0 × 105km2, Guizhou Province's area 80%
More than being can lava.The construction of Karst Mountain high-speed railway largely receives complicated geological environment and hydrogeology with operation
Conditionality.- aspect, the presence of Hidden Karst Under solution cavity in tunnel surrounding so that tunnel surrounding physico-mechanical properties there occurs and change
Become, result in tunnel surrounding rock stratum rigidity and stress field also changes；On the other hand, due to the presence of karst water, cause
The change of hydrogeology and engineering geological condition during tunnel construction, result in the rising of karst seepage water pressure value, tunnel
Surrounding Rock Strength reduction.In digging process, the muddy water two-phase mixture in the molten chamber of karst is disturbed in excavation destruction in Hidden Karst Under tunnel
Tunnel outburst prevention layer is broken through under the double action of dynamic and Thief zone pressure and high pressure is gushed out, the lighter can influence engineering construction and operation,
Severe one can cause heavy economic losses or even casualties.
With becoming increasingly conspicuous for problem above, the research to the prominent mud disaster of Hidden Karst Under tunnel excavation gushing water has become this
The focus in field.Domestic and foreign scholars expand substantial amounts of research work, and wherein PHYSICAL MODELING OF IN is the most frequently used, maximally effective hand
One of section.But during realistic simulation, because the influence factor of the prominent mud process of Hidden Karst Under tunnel gushing water is more, related is prominent
The more or less existing defects of the prominent mud physical simulating device of water, such as patent CN101231226B discloses a kind of large scale rock
Sample high pressure infiltration experiment device, but it is just for rock sample test；Patent CN101308126A discloses a kind of excavation gushing water
Analogue means, but its maximum bears hydraulic pressure only 1MPa, it is impossible to meet the lower prominent mud test simulation of tunnel gushing water of high artesian effect
Requirement；Patent CN204855131U discloses a kind of prominent mud experimental rig of structural fracture filling structure gushing water, although it can mould
Intend the prominent mud of gushing water under the conditions of pressure-bearing high, but can not realize that the prominent mud mould of the gushing water under excavating condition is intended, it is also difficult to find out phase
The prominent mud rule of gushing water answered.As can be seen here, the prominent mud experimental rig of related Hidden Karst Under tunnel excavation gushing water awaits more entering one
Step is improved.
The content of the invention
To be solved by this invention to be exactly existing Railway Tunnel construction process, Hidden Karst Under tunnel excavation gushing water dashes forward
A kind of different degrees of existing defects of the physical simulating device of mud disaster, there is provided the prominent mud experiment of Hidden Karst Under tunnel excavation gushing water
Device, rigidity is big, intensity is high, sealing is preferable, measurement data is accurate, can simulate diverse location, different filling condition and
The device of the prominent mud of gushing water in Karst Tunnel digging process under the conditions of different pressures, concrete scheme is as follows：
A kind of prominent mud Excavation simulation device of gushing water, including base, test cavity, the pressue device and water inlet of pressurization vertically, it is special
Levy and be：The test cavity side is provided with two excavation entrances, respectively positioned at the upper and lower sides of test cavity, by upside or downside
The inside tunneling of entrance is excavated, test cavity inside is equipped with Similar Material of Rockmass and the molten chamber of karst, and the Similar Material of Rockmass will
The molten chamber of karst surrounds；On base, the pressue device also sets the test cavity located at test cavity top on the test cavity
There is water inlet.
Further, the pressue device includes forced section, pressurization transmission rod and porous disc, and the forced section is located at pressurization
Transmission rod top, the pressurization transmission rod is connected by sealing device with test cavity, and pressurization transmission rod bottom connection is permeable
Plate, the porous disc lower end is provided with the permeable felt in top.
Further, sealing device is ring flange, and some connectors are provided with around the ring flange, and ring flange is by some
Connector is connected with test cavity top, and ring flange middle part is provided with hole, and the pressurization transmission rod passes through hole, and the hole is provided with sealing
Circle.
Further, the Kong Yousan, and line between three holes is triangular in shape, the water inlet is located at described three
Angular side.
Further, the base includes bottom flange dish and support, and test cavity is located in bottom flange dish, test cavity bottom
Portion is provided with the permeable felt in bottom, and the permeable felt in bottom is contacted with bottom flange dish, and bottom flange dish middle part is provided with the second water inlet.
Further, the tunneling periphery is provided with cable sealed joint.
Further, the first horizontal monitoring section and second is set gradually along tunnel excavation direction inside Similar Material of Rockmass
Horizontal monitoring section, the tunnel is vertical with the first horizontal monitoring section and the second horizontal monitoring section, the molten chamber position of karst
Between the first horizontal monitoring section and the second horizontal monitoring section, to carry out data acquisition and assessment.
The method that a kind of prominent mud mould of above-mentioned gushing water of the present invention intends the prominent mud of unit simulation gushing water, including following step
Suddenly：
（1）Assembling device；
（2）Similar Material of Rockmass is laid in test cavity, and in the molten chamber of Similar Material of Rockmass internal preset karst；
（3）The first horizontal monitoring section and the second laterally monitoring are set gradually inside Similar Material of Rockmass along tunnel excavation direction
Section, the first horizontal monitoring section and the second horizontal monitoring section are vertical with tunnel, and the molten chamber of karst is laterally supervised located at first
Survey between section and the second horizontal monitoring section, choose representative position and lay monitoring point；
（4）After model filling is finished, vertical lotus is applied to the Similar Material of Rockmass in test cavity using electronic universal tester
It is loaded onto setting value；
（5）Constant pressure water tank is connected with water inlet with high-pressure water pipe, and to being filled to design load in model, using upper inlet or
Tested lower side entrance；
（6）At tunnel portal using benching tunneling method by artificial Drilling by the way of excavated, carried out one in excavation
After circulation, supporting is carried out to tunnel using support material immediately, while the synchronous data acquisition carried out in whole process, Zhi Houzai
Carry out the excavation of subsequent cycle drilling depth.
Further, the use upper inlet or lower side entrance are tested specially：The use upper inlet or
Tested specially lower side entrance：When the molten chamber of karst is located at downside, entrance is excavated using upside and is tested, by upside
Entrance tunneling is excavated, mouth is excavated into downside and top water inlet is closed, current enter in test cavity from lower water inlet；
When the molten chamber of karst is located at upside, mouth is excavated using downside and is tested, entrance tunneling is excavated by downside, upside is opened
Dig mouth and lower water inlet is closed, current enter in model test main body from the water inlet of top.
Further, it is described it is representative be located along the outer vault of monitoring section excavation contour line, arch springing, spandrel and
Arch bottom.
The device that the simulation Hidden Karst Under tunnel of the invention prominent mud of gushing water is excavated, using the thick steel pipe and steel plate of high intensity
Used as rig for model test, model integral rigidity is higher, ensure that the larger pressure-loaded during model test；Passed in pressurization
Power bar sets sealing sky and sealing ring with ring flange contact site, and sealing effectiveness is preferable；Apart from upper and lower port on test cavity
Two tunnel excavations mouthful are reserved at 150mm positions, Hidden Karst Under tunnel, the similar material of surrounding filling rock mass are simulated with the molten chamber of karst
Material, it is possible to achieve the physical environment simulation under the conditions of diverse location, it is cost-effective；Set on the pipeline of tunnel excavation entrance many
Individual cable sealed joint, can both draw sensor conductor from model, it is also ensured that the sealing of whole process of the test.Always
From the point of view of, rigidity of the present invention is big, intensity is high, sealing is preferable, measurement data is accurate, can simulate diverse location, difference and fill
The device of the prominent mud of gushing water in the Karst Tunnel digging process filled out under the conditions of condition and different pressures, the scope of application is broad.
Brief description of the drawings
Fig. 1 is the front view of the prominent mud Excavation simulation device of Hidden Karst Under tunnel of the present invention gushing water；
Fig. 2 is the A-A ＇ cross sectional plan views of Fig. 1；
Fig. 3 is the change curve of water yield during the prominent mud of gushing water.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the present embodiment is carried out clearly and completely
Description, it is clear that described embodiment is only to a part of example of the invention, rather than whole examples.Based on the present invention
In embodiment, the every other implementation that those of ordinary skill in the art are obtained under the premise of creative work is not paid
Example, belongs to the scope of protection of the invention.
As shown in Figure 1-2, the prominent mud Excavation simulation device of the gushing water of the present embodiment, can simulate Hidden Karst Under tunnel in different works
Excavation situation under the conditions of condition, including base 4, test cavity 1, pressue device 3 and water inlet 7, the side of test cavity 1 are provided with two and enter
Mouth 5, respectively positioned at the upper and lower sides of test cavity 1, by the inside tunneling 13 of the excavation entrance 5 of upside, test cavity inside is equipped with
Similar Material of Rockmass 11 and the molten chamber 12 of karst, Similar Material of Rockmass 11 surround the molten chamber of karst；The test cavity is located at base 4
On, pressue device 3 is provided with water inlet 7 located at the top of test cavity 1, the test cavity.Pressue device includes that forced section, pressurization are passed
Power bar and porous disc 9, forced section are connected by sealing device located at pressurization transmission rod top, pressurization transmission rod with test cavity 1, plus
Pressure transmission rod bottom connection porous disc 9, the lower end of porous disc 9 is provided with the permeable felt 14 in top.Sealing device is ring flange 2, flange
Some high-strength connecting bolts 6 are provided with around disk, ring flange is spirally connected by high-strength connecting bolt 6 with the top of test cavity 1, in ring flange
Portion is provided with hole, and pressurization transmission rod has three, accordingly passes through three holes, and hole is provided with sealing ring 8, and the line between three holes is in
Triangle, water inlet 7 is located at the triangle side, and the bottom of test cavity 1 is provided with the permeable felt 15 in bottom, the permeable felt 15 in bottom
Contacted with base 4, base middle part is provided with the second water inlet 16, and test cavity bottom is connected by the second high-strength bolt 17 with base,
Base includes chassis and steel bracket.The periphery of entrance 5 of the upper side and lower side is provided with cable sealed joint 10.Inside Similar Material of Rockmass
Direction being excavated along tunnel 13 and setting gradually the first horizontal monitoring section and the second horizontal monitoring section, the molten chamber 12 of karst is located at
Between first horizontal monitoring section and the second horizontal monitoring section.
Similar Material of Rockmass can be chosen cement and vaseline made according to country rock and the different physical mechanics proterties parameters of charges
It is cementing agent, sand, blanc fixe and talcum powder are aggregate, and silicone oil is conditioning agent, by adjusting mutual similar material mixture
Configure common country rock；From gypsum and vaseline as cementing agent, quartz sand and talcum powder are aggregate, are equipped with mixing water, are passed through
Charges in the mutual molten chamber of similar material mixture configuration karst of adjustment.
Preferably, test cavity is made from cylindrical seamless steel pipe, can pressure-resistant more than 10MPa, cavity wall thickness 16mm,
Internal diameter 400mm, interior clear height 660mm, are positioned over above the chassis of base 4, are supported by bridle iron, apart from upper and lower port on test cavity
Two entrances are reserved at 150mm positions, two entrances stretch out, while setting 16 electricity on the pipeline of tunnel excavation entrance
Cable seal nipple 10, for sensor conductor to be drawn from model；The water inlet for setting is stayed to be arranged in flange in bottom flange dish
Disk middle part；Pressurization transmission rod passes through top seal ring flange, triangle to lay, by the porous disc 9 that is attached thereto to mould
The Similar Material of Rockmass of laying applies crustal stress in type main body, a diameter of 5mm of permeable hole is set on porous disc, in porous disc and rock
Body phase places one piece of permeable felt like material position, in order to the disintegrating slag gear that model fills thing sample is filled in simulation
In the cavity put, while the model that acts on of uniform fluid flow can also filled on thing.
The specific testing procedure being simulated using the prominent mud Excavation simulation device of the gushing water of the present embodiment is as follows：
（1）The assembling Hidden Karst Under tunnel prominent mud Excavation simulation device of gushing water, and Excavation simulation device is placed on steel bracket；
（2）Entrance is closed, Similar Material of Rockmass is laid in test cavity, and it is molten in Similar Material of Rockmass internal preset karst
Chamber；
（3）The first horizontal monitoring section and the second laterally monitoring are set gradually inside Similar Material of Rockmass along tunnel excavation direction
Section, the first horizontal monitoring section and the second horizontal monitoring section are vertical with tunnel, and the molten chamber of karst is laterally supervised located at first
Survey between section and the second horizontal monitoring section, choose along the outer vault of monitoring section excavation contour line, arch springing, spandrel and arch bottom etc.
Monitoring point is laid in representative position, to carry out data acquisition；
（4）After model filling is finished, using electronic universal tester by pressue device to the similar material of rock mass in test cavity
Material applies vertical load to setting value；
（5）Constant pressure water tank is connected with water inlet with high-pressure water pipe, and to design load is filled in model, the use upside enters
Mouth or lower side entrance are tested specially：The molten chamber of karst is located at downside, excavates entrance using upside and is tested, by upside
Entrance tunneling is excavated, mouth is excavated into downside and top water inlet is closed, current enter in test cavity from lower water inlet；
（6）At tunnel portal using benching tunneling method by artificial Drilling by the way of excavated, carried out one in excavation
After circulation, supporting is carried out to tunnel using support material immediately, while the synchronous data acquisition carried out in whole process, Zhi Houzai
Carry out the excavation of subsequent cycle drilling depth.Specific data mainly include flow, water pressure, deformation and filler number of dropouts, flow
Gathered using the metal pipe float flow meter of LZ series, pressure rating is 2.0MPa, and range is 10-100L/h；Water pressure is used
The miniature osmometer collection of XHZ-701 type resistance-strain types, appearance and size is Φ 26*68mm, and range is 0-1MPa；Soil pressure is used
The miniature soil pressure sensor collection of DZ-I type resistance-types, appearance and size is Φ 17*7mm, and range is 0-2MPa；Deformation is using self-control
Miniature strain transducer is acquired；Charges number of dropouts is placed on baking box by the muddy water mixing two phase flow that will be collected into experiment
In dry, be isolated.
According to the data of collection, the model test based on the prominent mud of gushing water under Hidden Karst Under tunnel hypertonic pressure and condition of high ground stress
As a result, during selective analysis Hidden Karst Under tunnel excavation country rock water yield, flooder（Prominent mud amount）, permeability coefficient, hole
The Changing Pattern of the physical quantitys such as gap rate, Reynolds number, as shown in figure 3, by taking water yield as an example, according to the change of water yield during gushing water
Change, gushing water process can be divided into three phases, i.e., the initial seepage flow stage（Ⅰ）, a small amount of charges gush out with current, water yield
It is slowly increased；Seepage flow is mutated the stage（Ⅱ）, current constantly wash away to charges, and substantial amounts of charges migration is lost in, and water yield exists
Increase rapidly in the shorter time；The steady seepage stage（Ⅲ）, the charges that current are carried by wash away totally substantially, permeability
Tend towards stability, water yield is held essentially constant.
By above-mentioned analysis, the prominent mud of gushing water causes calamity evolution triggering under further disclosing Hidden Karst Under tunnel excavation Excavation
The Changing Pattern of mechanism and its key control parameter, it is primary under discussion Hidden Karst Under tunnel outburst prevention rock mass structure excavation Excavation
The cause calamity evolution features of passage and the prominent mud of secondary passage gushing water, propose that muddy water mixing two phase flow is dashed forward and gush the critical hydrodynamic(al) of passage formation
Power condition.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all in essence of the invention
Within god and principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (10)
1. a kind of prominent mud Excavation simulation device of gushing water, including base, test cavity, the pressue device and water inlet of pressurization vertically, its
It is characterised by：The test cavity side is provided with two excavation entrances, respectively positioned at the upper and lower sides of test cavity, by upside or downside
The inside tunneling of excavation entrance, test cavity inside be equipped with Similar Material of Rockmass and the molten chamber of karst, the Similar Material of Rockmass
The molten chamber of karst is surrounded；The test cavity on base, located at test cavity top on the test cavity go back by the pressue device
It is provided with water inlet.
2. the prominent mud Excavation simulation device of gushing water according to claim 1, it is characterised in that：The pressue device includes stress
Portion, pressurization transmission rod and porous disc, the forced section pass through sealing device located at pressurization transmission rod top, the pressurization transmission rod
It is connected with test cavity, the pressurization transmission rod bottom connection porous disc, the porous disc lower end is provided with the permeable felt in top.
3. the prominent mud Excavation simulation device of gushing water according to claim 2, it is characterised in that：Sealing device is ring flange, institute
State and be provided with around ring flange some connectors, ring flange is connected by some connectors with test cavity top, ring flange middle part sets
There is hole, the pressurization transmission rod passes through hole, and the hole is provided with sealing ring.
4. the prominent mud Excavation simulation device of gushing water according to claim 3, it is characterised in that：The Kong Yousan, and three
Line between hole is triangular in shape, and the water inlet is located at the triangle side.
5. the prominent mud Excavation simulation device of gushing water according to claim 3, it is characterised in that：The base includes flange in the bottom
Disk and support, in bottom flange dish, test cavity bottom is provided with the permeable felt in bottom, the permeable felt in bottom and bottom to test cavity
Ring flange is contacted, and bottom flange dish middle part is provided with the second water inlet.
6. according to the prominent mud Excavation simulation device of one of claim 1-5 described gushing water, it is characterised in that：Outside the tunneling
Week is provided with cable sealed joint.
7. according to the prominent mud Excavation simulation device of one of claim 1-5 described gushing water, it is characterised in that：In Similar Material of Rockmass
Portion sets gradually the first horizontal monitoring section and the second horizontal monitoring section along tunnel excavation direction, and the tunnel and first is laterally
Monitoring section and the second horizontal monitoring section are vertical, and the molten chamber of karst is located at the first horizontal monitoring section and the second laterally monitoring
Between section.
8. a kind of method of the prominent mud of unit simulation gushing water described in utilization claim 1-7, it is characterised in that：Including following step
Suddenly：
（1）Assembling device；
（2）Similar Material of Rockmass is laid in test cavity, and in the molten chamber of Similar Material of Rockmass internal preset karst；
（3）The first horizontal monitoring section and the second laterally monitoring are set gradually inside Similar Material of Rockmass along tunnel excavation direction
Chosen representative between the first horizontal monitoring section and the second horizontal monitoring section in section, the molten chamber of karst
Lay monitoring point in position；
（4）After model filling is finished, vertical lotus is applied to the Similar Material of Rockmass in test cavity using electronic universal tester
It is loaded onto setting value；
（5）Constant pressure water tank is connected with water inlet with high-pressure water pipe, and to being filled to design load in model, using upper inlet or
Tested lower side entrance；
（6）At tunnel portal using benching tunneling method by artificial Drilling by the way of excavated, carried out one in excavation
After circulation, supporting is carried out to tunnel using support material immediately, synchronously carry out the data acquisition in whole process, carried out again afterwards
The excavation of subsequent cycle drilling depth.
9. method according to claim 8, it is characterised in that：The use upper inlet or lower side entrance carry out experiment tool
Body is：When the molten chamber of karst is located at downside, entrance is excavated using upside and is tested, entrance tunneling is excavated by upside,
Mouth is excavated into downside and top water inlet is closed, current enter in test cavity from lower water inlet；When the molten chamber of karst is positioned at upper
During side, mouth is excavated using downside and is tested, entrance tunneling is excavated by downside, mouth and lower water inlet are excavated into upside
Close, current enter in model test main body from the water inlet of top.
10. method according to claim 8, it is characterised in that：The representative monitoring section that is located along is opened
Dig the outer vault of contour line, arch springing, spandrel and arch bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710139052.0A CN106872334B (en) | 2017-03-09 | 2017-03-09 | Device and method for simulating water bursting and mud bursting excavation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710139052.0A CN106872334B (en) | 2017-03-09 | 2017-03-09 | Device and method for simulating water bursting and mud bursting excavation |
Publications (2)
| Publication Number | Publication Date |
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| CN106872334A true CN106872334A (en) | 2017-06-20 |
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| CN107884548A (en) * | 2017-10-27 | 2018-04-06 | 西南石油大学 | A kind of underground engineering geological disaster teaching demonstration device and method |
| CN108107115A (en) * | 2018-01-30 | 2018-06-01 | 辽宁工程技术大学 | A kind of high pressure resistant coal petrography absorption damage deformation-acoustic-electric combined monitoring experimental rig |
| 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 |
| CN108225929A (en) * | 2017-12-15 | 2018-06-29 | 山东大学 | Block splits rock excavation disturbance and development machine shield load-bearing monitor model assay systems and method |
| CN108593454A (en) * | 2018-07-13 | 2018-09-28 | 湖南科技大学 | A kind of shock vibration retrofilling pressure-bearing solution cavity is dashed forward mud experimental rig and test method |
| CN110221036A (en) * | 2018-03-01 | 2019-09-10 | 中国矿业大学 | Water-retaining production " sound emission-infra-red radiation " experimental system with seepage apparatus |
| CN110297070A (en) * | 2019-06-27 | 2019-10-01 | 中国矿业大学 | A kind of three-dimensional solid-liquid coupling analog simulation system and method excavated for coal seam |
| CN110554169A (en) * | 2019-10-15 | 2019-12-10 | 西南交通大学 | tunnel excavation process simulation test device and method |
| CN111337409A (en) * | 2020-04-01 | 2020-06-26 | 中南大学 | Test device and method for simulating influence of rainfall on seepage dynamic of karst tunnel |
| CN112414915A (en) * | 2020-11-02 | 2021-02-26 | 山东大学 | Test system and method for simulating tunnel excavation seepage change under complex geological conditions |
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| CN107884548B (en) * | 2017-10-27 | 2023-12-15 | 西南石油大学 | Underground engineering geological disaster teaching demonstration device and method |
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| CN108107115A (en) * | 2018-01-30 | 2018-06-01 | 辽宁工程技术大学 | A kind of high pressure resistant coal petrography absorption damage deformation-acoustic-electric combined monitoring experimental rig |
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| CN108593454B (en) * | 2018-07-13 | 2024-01-09 | 湖南科技大学 | Device and method for testing mud burst of filling pressure-bearing karst cave under impact disturbance |
| CN110297070A (en) * | 2019-06-27 | 2019-10-01 | 中国矿业大学 | A kind of three-dimensional solid-liquid coupling analog simulation system and method excavated for coal seam |
| CN110554169A (en) * | 2019-10-15 | 2019-12-10 | 西南交通大学 | tunnel excavation process simulation test device and method |
| CN111337409B (en) * | 2020-04-01 | 2021-12-10 | 中南大学 | Test device and method for simulating influence of rainfall on seepage dynamic of karst tunnel |
| CN111337409A (en) * | 2020-04-01 | 2020-06-26 | 中南大学 | Test device and method for simulating influence of rainfall on seepage dynamic of karst tunnel |
| CN112414915A (en) * | 2020-11-02 | 2021-02-26 | 山东大学 | Test system and method for simulating tunnel excavation seepage change under complex geological conditions |
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