CN108627199A - A kind of device that can measure the multinomial mechanics of mud-rock flow and kinematics parameters simultaneously - Google Patents
A kind of device that can measure the multinomial mechanics of mud-rock flow and kinematics parameters simultaneously Download PDFInfo
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- CN108627199A CN108627199A CN201810614916.4A CN201810614916A CN108627199A CN 108627199 A CN108627199 A CN 108627199A CN 201810614916 A CN201810614916 A CN 201810614916A CN 108627199 A CN108627199 A CN 108627199A
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- mud
- rock flow
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- top plate
- measure
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M10/00—Hydrodynamic testing; Arrangements in or on ship-testing tanks or water tunnels
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
Abstract
The invention discloses a kind of devices that can measure the multinomial mechanics of mud-rock flow and kinematics parameters simultaneously, the present invention is when measuring, when mud-rock flow movement to the measuring device, the positive force of mud-rock flow will reach drag reduction pulley by top plate, drag reduction pulley is transferred to direct stress force transmitting board, finally reaches four axial dynamometers of bottom；Simultaneously, the tangential force of mud-rock flow bottom and top plate can be such that drag reduction pulley is slided on direct stress force transmitting board, the sliding can be interacted with axial dynamometer due to Shear transfer accessory and is obstructed, and the tangential force that top plate is subject to is reached on two axial dynamometers on the side wall of stainless steel box, the present invention can measure the direct stress of mud-rock flow simultaneously, the speed of shear stress, pore water pressure and tap, and the device can prevent leak and the fine grain blocking of mud-rock flow.
Description
Technical field
The present invention relates to a kind of devices that can measure the multinomial mechanics of mud-rock flow and kinematics parameters simultaneously, belong to geotechnical engineering
Or a kind of novel section's grinding device of mountain region disaster scientific domain, it can be used for mud-rock flow flume experiment or mud-rock flow field monitoring.
Background technology
Currently, in existing technology, usually mud-rock flow direct stress and the measurement of shear stress are separated, such as Iverson
Person selects single dynamometer to measure direct stress and shear stress respectively with two kinds of devices.In such cases, if research mudstone
When flowing the relationship of direct stress and shear stress in motion process, result of study be based on mud-rock flow at different locations or phase peri position
Set place, direct stress and shear stress change procedure is consistent such assumes.In fact, the hypothesis and invalid, is transported for mud-rock flow
The research of dynamic process mechanism causes obstruction.
The present invention is in view of the above problems, provide a kind of dress that can measure the multinomial mechanics of mud-rock flow and kinematics parameters simultaneously
It sets, makes it that can measure the direct stress of mud-rock flow, shear stress, pore water pressure and leading speed simultaneously, and the device can prevent
Leak and the fine grain blocking of mud-rock flow.
Invention content
To achieve the above object, the present invention provides the following technical solutions：One kind can measure simultaneously the multinomial mechanics of mud-rock flow and
The device of kinematics parameters comprising stainless steel box, axial dynamometer, positive force transmitting board and ceiling device, which is characterized in that
The stainless steel box is cuboid case type structures,
Four axial dynamometers are fixed in bottom in stainless steel box, and the power cord of axial dynamometer in a manner of being arranged symmetrically
Stainless steel box is exported with signal wire；
The forward direction force transmitting board is rectangular parallelepiped structure compatible with stainless steel box inner cavity, and the positive force transmitting board is arranged in not
On the axial dynamometer in steel cassette bottom of becoming rusty portion；
It is located above the positive force transmitting board shearing support accessory there are two being symmetrical arranged on the side wall of the stainless steel box, each
An axial dynamometer is laid on the shearing support accessory；
The ceiling device stretches into the interior intracavitary of the stainless steel box, and the ceiling device is set to the positive force transmitting board
On,
The ceiling device includes top plate and ventage piezometer square under the top plate is arranged, ventage piezometer adapter, shears
Accessory and drag reduction pulley are transmitted,
Wherein, the ventage piezometer and ventage piezometer adapter are used for measuring the hydraulic pressure of bottom during mud-rock flow movement
Power is provided with the axial dynamometer for measuring the tangential force suffered by top plate on Shear transfer accessory；
When measuring, when mud-rock flow movement to the measuring device, the positive force of mud-rock flow will reach drag reduction pulley by top plate,
Drag reduction pulley is transferred to direct stress force transmitting board, finally reaches four axial dynamometers of bottom；Meanwhile mud-rock flow bottom and top plate
Tangential force drag reduction pulley can be made to be slided on direct stress force transmitting board, which can be due to Shear transfer accessory and axial dynamometry
Meter interacts and is obstructed, and the tangential force that top plate is subject to is reached to two axial dynamometers on the side wall of stainless steel box
On.
Further, preferably, the drag reduction pulley is four be arranged symmetrically, the ventage piezometer and pore water
Pressure meter adapter is 2.
Further, preferably, the ventage piezometer and ventage piezometer adapter are set to each drag reduction pulley
In the region surrounded.
Further, preferably, the axial direction dynamometer model：LC101-500；Pore water pressure is calculated as Keller
PAA-23/25。
Further, preferably, the ventage piezometer adapter is stair-stepping column structure, the side wall of lower prop
On be provided with along radial direction be arranged convenient for the lower threaded hole that is connected with ventage piezometer, column body it is centrally disposed
Have the circular through hole being connected to lower threaded hole, strainer be fixed in the circular through hole, so as to prevent in mud-rock flow solid particle into
Enter, the built-in Qing Dynasty's water of ventage piezometer adapter.
Further, preferably, being provided with gap between top plate and stainless steel box inner wall.
Further, preferably, the surrounding of the top plate is provided with soft and yielding hollow type using gum adherency
Foamed silica gel adhesive tape.
Further, preferably, the power transmission for being provided centrally with power supply source line and being pierced by with signal wire of the forward direction force transmitting board
Plate threading hole.
In addition, the present invention also provides one kind can measuring mud-rock flow bottom direct stress shear stress pore water pressure and stream simultaneously
The method of speed, measurement method are as follows：
（1）Four axial dynamometers are fixed in stainless steel box bottom and power cord passes through stainless steel box threading hole with signal wire
Direct stress force transmitting board, is then placed on the dynamometer of bottom by export, and shearing support accessory is connected with axial dynamometer
It is fixed on the side wall of stainless steel box afterwards, then top device is placed on the direct stress force transmitting board；
（2）When mud-rock flow movement to measuring device, the positive force of mud-rock flow will reach drag reduction pulley by top plate, and direct stress passes
Power plate, finally reaches four axial dynamometers of bottom, and dynamometer measures axial force reading F respectivelyn1, Fn2, Fn3And Fn4；
Assuming that dynamometer initial reading is Fn0, then mud-rock flow is positive to top plate is with joint efforts：(Fn1+Fn2+Fn3+Fn4-4Fn0)；
Meanwhile the tangential force of mud-rock flow bottom and top plate can be such that pulley is slided on direct stress force transmitting board, which can be due to
Shear transfer accessory interacts with axial dynamometer and is obstructed, and the tangential force that top plate is subject to is reached axial dynamometer
In, measure axial force reading Fs1And Fs2；
Assuming that dynamometer initial reading is Fs0, then mud-rock flow be with joint efforts tangentially to top plate：(Fs1+Fs2+ -2Fs0), it is assumed that top plate
Area be A, then the direct stress of mud-rock flow bottom and shearing stress are represented by：
（3）When mud-rock flow flows through the ventage piezometer adapter face for filling water, mud-rock flow bottom hydraulic pressure will pass through adapter
In water reach ventage piezometer, to measure the water pressure of mud-rock flow bottom, it is assumed that in the motion process of mud-rock flow, side
The initial response time of ventage piezometer is t1, the ventage piezometer initial response time of the other side is t2, two ventage piezometers
Spacing be d, then mud-rock flow head motion speed be represented by：
。
Compared with prior art, the beneficial effects of the invention are as follows：
The present invention can measure the direct stress of mud-rock flow, shear stress, pore water pressure and leading speed simultaneously, and the device can be prevented
Leak-stopping water and the fine grain blocking of mud-rock flow.
Description of the drawings
Fig. 1 is a kind of structural representation for the device that can measure the multinomial mechanics of mud-rock flow and kinematics parameters simultaneously of the present invention
Figure；
Fig. 2 is that a kind of present invention device that can measure the multinomial mechanics of mud-rock flow and kinematics parameters simultaneously is equipped with axial dynamometry
The stainless steel box main view schematic cross-sectional view of meter；
Fig. 3 is that a kind of present invention device that can measure the multinomial mechanics of mud-rock flow and kinematics parameters simultaneously is equipped with axial survey
The overlooking structure diagram of the stainless steel box of power meter；
Fig. 4 is that a kind of ceiling device structure for the device that can measure the multinomial mechanics of mud-rock flow and kinematics parameters simultaneously of the present invention is shown
It is intended to；
Fig. 5 is a kind of positive power transmission harden structure for the device that can measure the multinomial mechanics of mud-rock flow and kinematics parameters simultaneously of the present invention
Schematic diagram；
Fig. 6 is a kind of ventage piezometer adaptation of device that can measure the multinomial mechanics of mud-rock flow and kinematics parameters simultaneously of the present invention
General ability portion schematic cross-sectional view；
Fig. 7 is a kind of hollow type foamed silica gel for the device that can measure the multinomial mechanics of mud-rock flow and kinematics parameters simultaneously of the present invention
Adhesive tape cross section structural schematic diagram；
Wherein, 1, stainless steel box；2, axial dynamometer；3, positive force transmitting board；4, shearing support accessory；5, Shear transfer accessory；
6, drag reduction pulley；7, ventage piezometer；8, ventage piezometer adapter；9, top plate, 10, force transmitting board threading hole, 11, stainless steel box
Threading hole, 12, power cord and signal wire, 13, lower screw thread, 14, strainer, 15, lower prop, 16, column body, 17, hollow type foaming
Silica gel adhesive tape.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
- 7 are please referred to Fig.1, the present invention provides a kind of technical solution：One kind can measure the multinomial mechanics of mud-rock flow and movement simultaneously
Learn the device of parameter comprising stainless steel box 1, axial dynamometer 2, positive force transmitting board 3 and ceiling device, which is characterized in that institute
It is cuboid case type structures to state stainless steel box 1,
Four axial dynamometers 2 are fixed in bottom in stainless steel box 1, and the electricity of axial dynamometer 2 in a manner of being arranged symmetrically
Source line exports stainless steel box with signal wire 12；
The forward direction force transmitting board 3 is rectangular parallelepiped structure compatible with 1 inner cavity of stainless steel box, and the positive force transmitting board 3 is arranged
On the axial dynamometer 2 of stainless steel box bottom；
It is located above the positive force transmitting board shearing support accessory 4 there are two being symmetrical arranged on the side wall of the stainless steel box 1, often
It is laid with an axial dynamometer 2 on a shearing support accessory 4；
The ceiling device stretches into the interior intracavitary of the stainless steel box, and the ceiling device is set to the positive force transmitting board 3
On,
The ceiling device include top plate 9 and the ventage piezometer being arranged below top plate 97, ventage piezometer adapter 8,
Shear transfer accessory 5 and drag reduction pulley 6,
Wherein, the ventage piezometer 7 and ventage piezometer adapter 8 are used for measuring the hydraulic pressure of bottom during mud-rock flow movement
Power is provided with the axial dynamometer for measuring the tangential force suffered by top plate on Shear transfer accessory；
When measuring, when mud-rock flow movement to the measuring device, the positive force of mud-rock flow will reach drag reduction cunning by top plate 9
Wheel, drag reduction pulley are transferred to direct stress force transmitting board, finally reach four axial dynamometers of bottom；Meanwhile mud-rock flow bottom with
The tangential force of top plate can be such that drag reduction pulley is slided on direct stress force transmitting board, which can be due to Shear transfer accessory and axial direction
Dynamometer interacts and is obstructed, and the tangential force that top plate 9 is subject to is reached to two on the side wall of stainless steel box 1 and axial is surveyed
On power meter 2.
In the present embodiment, the drag reduction pulley is four be arranged symmetrically, the ventage piezometer and pore water pressure
It is 2 to count adapter.The ventage piezometer and ventage piezometer adapter are set to the area that each drag reduction pulley surrounds
In domain.
Wherein, the axial dynamometer model：LC101-500；Pore water pressure is calculated as Keller PAA-23/25.
Such as Fig. 6, the ventage piezometer adapter is stair-stepping column structure, is provided on the side wall of lower prop 15
Along radial direction setting convenient for the lower threaded hole 13 that is connected with ventage piezometer, column body 16 be provided centrally with and
The circular through hole of lower threaded hole connection is fixed with strainer 14 in the circular through hole, to prevent solid particle in mud-rock flow from entering,
The built-in Qing Dynasty's water of ventage piezometer adapter, when mud-rock flow flows through the ventage piezometer adapter face for filling water, mud
Rock glacier bottom hydraulic pressure will reach ventage piezometer by the water in adapter, to measure the water pressure of mud-rock flow bottom.Assuming that
In the motion process of mud-rock flow, the initial response time of the ventage piezometer in left side is t in Fig. 21, at the beginning of the ventage piezometer on right side
Reaction time beginning is t2, the spacing of two ventage piezometers is d, then mud-rock flow head motion speed is represented by：
。
Another technical problem of the device is that the preventing water leakage of top plate portion and anti-fine grained block, to ensure top plate tangential force
Shear transfer accessory can be all reached, needs to retain certain gap between top plate and stainless steel box inner wall, and the gap can make
Moisture or fine grained penetrate into box in mud-rock flow, increase dynamometer water inlet and fine grain risk is blocked in gap, dynamometer into
Water can make dynamometer lose signal at work, and gap is blocked by fine grained, may interfere with tangential force measurement so that measure
Tangential force it is less than normal.
It is measured through experiment, chooses a kind of hollow type foamed silica gel adhesive tape 17 and stick at top plate surrounding using gum and can effectively reach
The effect that the anti-fine grained of preventing water leakage blocks, foaming type silica gel is more soft, yielding, and to the knot of direct stress and shear stress measurement
Dried fruit is disturbed smaller.
In addition, the force transmitting board threading hole 10 for being provided centrally with power supply source line and being pierced by with signal wire of the forward direction force transmitting board.
In addition, the present invention also provides one kind can measuring mud-rock flow bottom direct stress shear stress pore water pressure and stream simultaneously
The method of speed, measurement method are as follows：
（1）Four axial dynamometers are fixed in stainless steel box bottom and power cord passes through stainless steel box threading hole with signal wire
Direct stress force transmitting board, is then placed on the dynamometer of bottom by export, and shearing support accessory is connected with axial dynamometer
It is fixed on the side wall of stainless steel box afterwards, then top device is placed on the direct stress force transmitting board；
（2）When mud-rock flow movement to measuring device, the positive force of mud-rock flow will reach drag reduction pulley by top plate, and direct stress passes
Power plate, finally reaches four axial dynamometers of bottom, and dynamometer measures axial force reading F respectivelyn1, Fn2, Fn3And Fn4；
Assuming that dynamometer initial reading is Fn0, then mud-rock flow is positive to top plate is with joint efforts：(Fn1+Fn2+Fn3+Fn4-4Fn0)；
Meanwhile the tangential force of mud-rock flow bottom and top plate can be such that pulley is slided on direct stress force transmitting board, which can be due to
Shear transfer accessory interacts with axial dynamometer and is obstructed, and the tangential force that top plate is subject to is reached axial dynamometer
In, measure axial force reading Fs1And Fs2；
Assuming that dynamometer initial reading is Fs0, then mud-rock flow be with joint efforts tangentially to top plate：(Fs1+Fs2+ -2Fs0), it is assumed that top plate
Area be A, then the direct stress of mud-rock flow bottom and shearing stress are represented by：
（3）When mud-rock flow flows through the ventage piezometer adapter face for filling water, mud-rock flow bottom hydraulic pressure will pass through adapter
In water reach ventage piezometer, to measure the water pressure of mud-rock flow bottom, it is assumed that in the motion process of mud-rock flow, side
The initial response time of ventage piezometer is t1, the ventage piezometer initial response time of the other side is t2, two ventage piezometers
Spacing be d, then mud-rock flow head motion speed be represented by：
。
The present invention can measure the direct stress of mud-rock flow, shear stress, pore water pressure and leading speed, and the device simultaneously
It can prevent leak and the fine grain blocking of mud-rock flow.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (9)
1. a kind of device that can measure the multinomial mechanics of mud-rock flow and kinematics parameters simultaneously comprising stainless steel box, axial dynamometry
Meter, positive force transmitting board and ceiling device, which is characterized in that
The stainless steel box is cuboid case type structures,
Four axial dynamometers are fixed in bottom in stainless steel box, and the power cord of axial dynamometer in a manner of being arranged symmetrically
Stainless steel box is exported with signal wire；
The forward direction force transmitting board is rectangular parallelepiped structure compatible with stainless steel box inner cavity, and the positive force transmitting board is arranged in not
On the axial dynamometer in steel cassette bottom of becoming rusty portion；
It is located above the positive force transmitting board shearing support accessory there are two being symmetrical arranged on the side wall of the stainless steel box, each
An axial dynamometer is laid on the shearing support accessory；
The ceiling device stretches into the interior intracavitary of the stainless steel box, and the ceiling device is set to the positive force transmitting board
On,
The ceiling device includes top plate and ventage piezometer square under the top plate is arranged, ventage piezometer adapter, shears
Accessory and drag reduction pulley are transmitted,
Wherein, the ventage piezometer and ventage piezometer adapter are used for measuring the hydraulic pressure of bottom during mud-rock flow movement
Power is provided with the axial dynamometer for measuring the tangential force suffered by top plate on Shear transfer accessory；
When measuring, when mud-rock flow movement to the measuring device, the positive force of mud-rock flow will reach drag reduction pulley by top plate,
Drag reduction pulley is transferred to direct stress force transmitting board, finally reaches four axial dynamometers of bottom；Meanwhile mud-rock flow bottom and top plate
Tangential force drag reduction pulley can be made to be slided on direct stress force transmitting board, which can be due to Shear transfer accessory and axial dynamometry
Meter interacts and is obstructed, and the tangential force that top plate is subject to is reached to two axial dynamometers on the side wall of stainless steel box
On.
2. a kind of device that can measure the multinomial mechanics of mud-rock flow and kinematics parameters simultaneously according to claim 1, special
Sign is：The drag reduction pulley is four be arranged symmetrically, and the ventage piezometer and ventage piezometer adapter are 2
It is a.
3. a kind of device that can measure the multinomial mechanics of mud-rock flow and kinematics parameters simultaneously according to claim 1, special
Sign is：The ventage piezometer and ventage piezometer adapter are set in the region that each drag reduction pulley surrounds.
4. a kind of device that can measure the multinomial mechanics of mud-rock flow and kinematics parameters simultaneously according to claim 1, special
Sign is：The axial direction dynamometer model：LC101-500；Pore water pressure is calculated as Keller PAA-23/25.
5. a kind of device that can measure the multinomial mechanics of mud-rock flow and kinematics parameters simultaneously according to claim 1, special
Sign is：The ventage piezometer adapter is stair-stepping column structure, is provided with along radial direction on the side wall of lower prop
Direction setting convenient for the lower threaded hole that is connected with ventage piezometer, being provided centrally with for column body is connected to lower threaded hole
Circular through hole, be fixed with strainer in the circular through hole, to prevent solid particle in mud-rock flow from entering, the ventage piezometer
The built-in Qing Dynasty's water of adapter.
6. a kind of device that can measure the multinomial mechanics of mud-rock flow and kinematics parameters simultaneously according to claim 1, special
Sign is：It is provided with gap between top plate and stainless steel box inner wall.
7. a kind of device that can measure the multinomial mechanics of mud-rock flow and kinematics parameters simultaneously according to claim 6, special
Sign is：The surrounding of the top plate is provided with soft and yielding hollow type foamed silica gel adhesive tape using gum adherency.
8. a kind of according to claim 1-7 any one can measure the multinomial mechanics of mud-rock flow and kinematics parameters simultaneously
Device, it is characterised in that：The force transmitting board threading hole for being provided centrally with power supply source line and being pierced by with signal wire of the forward direction force transmitting board.
9. a kind of method that can measure mud-rock flow bottom direct stress shear stress pore water pressure and flow velocity simultaneously, which is characterized in that
It uses a kind of dress that can measure the multinomial mechanics of mud-rock flow and kinematics parameters simultaneously described in claim 1-8 any one
It sets, measurement method is as follows：
（1）Four axial dynamometers are fixed in stainless steel box bottom and power cord passes through stainless steel box threading hole with signal wire
Direct stress force transmitting board, is then placed on the dynamometer of bottom by export, and shearing support accessory is connected with axial dynamometer
It is fixed on the side wall of stainless steel box afterwards, then top device is placed on the direct stress force transmitting board；
（2）When mud-rock flow movement to measuring device, the positive force of mud-rock flow will reach drag reduction pulley by top plate, and direct stress passes
Power plate, finally reaches four axial dynamometers of bottom, and dynamometer measures axial force reading F respectivelyn1, Fn2, Fn3And Fn4；
Assuming that dynamometer initial reading is Fn0, then mud-rock flow is positive to top plate is with joint efforts：(Fn1+Fn2+Fn3+Fn4-4Fn0)；
Meanwhile the tangential force of mud-rock flow bottom and top plate can be such that pulley is slided on direct stress force transmitting board, which can be due to
Shear transfer accessory interacts with axial dynamometer and is obstructed, and the tangential force that top plate is subject to is reached axial dynamometer
In, measure axial force reading Fs1And Fs2；
Assuming that dynamometer initial reading is Fs0, then mud-rock flow be with joint efforts tangentially to top plate：(Fs1+Fs2+ -2Fs0), it is assumed that top plate
Area is A, then the direct stress of mud-rock flow bottom and shearing stress are represented by：
（3）When mud-rock flow flows through the ventage piezometer adapter face for filling water, mud-rock flow bottom hydraulic pressure will pass through adapter
In water reach ventage piezometer, to measure the water pressure of mud-rock flow bottom, it is assumed that in the motion process of mud-rock flow, side
The initial response time of ventage piezometer is t1, the ventage piezometer initial response time of the other side is t2, two ventage piezometers
Spacing be d, then mud-rock flow head motion speed be represented by：
。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810614916.4A CN108627199B (en) | 2018-07-18 | 2018-07-18 | Device capable of simultaneously measuring multiple mechanical and kinematic parameters of debris flow |
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|---|---|---|---|
| CN201810614916.4A CN108627199B (en) | 2018-07-18 | 2018-07-18 | Device capable of simultaneously measuring multiple mechanical and kinematic parameters of debris flow |
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| CN108627199B CN108627199B (en) | 2020-05-05 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109489870A (en) * | 2018-11-02 | 2019-03-19 | 河海大学 | A kind of ball-type bed-sit starting shearing stress measuring device |
| CN109540462A (en) * | 2018-11-21 | 2019-03-29 | 中国科学院.水利部成都山地灾害与环境研究所 | A kind of experimental provision and its experimental method for simulating mud-rock flow movement |
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