CN109580914A - A kind of dynamic water circulation and rock argillization process simulation device and test method under loading condition - Google Patents
A kind of dynamic water circulation and rock argillization process simulation device and test method under loading condition Download PDFInfo
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Abstract
A kind of dynamic water circulation and the rock argillization process simulation device under loading condition, including flow control apparatus for water, flow control apparatus for water are connected to by argillization simulator with circulator；Interior warehouse includes the container body of top and open bottom end, and the upper dankness stone matched with rock sample and lower permeable stone are provided in container body, and the fixed baffle with loading device is matched with upper dankness stone, uniformly distributed on the side wall of interior warehouse to have multiple permeable holes；Circulator includes filter, and the circulation pipe other end is successively connected to second flow speed controller, collector by filter.A kind of dynamic water circulation provided by the invention and the rock argillization process simulation device and test method under loading condition, it can solve existing apparatus and carry out the defect for being unable to real simulation engineering rock mass local environment condition in the test of rock argillization process simulation, the accuracy for improving test result, also can be improved the efficiency, convenience and normalization of test.
Description
Technical field
The present invention relates to the experimental test field of geotechnical engineering, Geological Engineering, mineral engineering etc., especially a kind of dynamic water is followed
Rock argillization process simulation device and test method under ring and loading condition.
Background technique
Argillization, especially soft rock can occur under the action of water and meet the easy argillization of water electrode for a large amount of engineering rock mass.Engineering rock mass one
Argillization occurs for denier, it will causes serious engineering safety accident or even disaster event.The destruction of a large amount of large size concordant rock slopes
It is mostly as caused by the argillization of soft stratum, such as the Chinese fir slot landslide of reservoir area of Three Gorges, Anlesi landslide, the balcony township in Sichuan Province
Because of the Disaster Events such as top plate collapsing, roof fall caused by softening rock argillization in landslide etc. and the underground engineerings such as tunnel.
The test of softening rock argillization process simulation, is mostly that rock sample is placed in nature in aqueous solution or is soaked in vacuum.This mud
Change simulated environment, it is different from the argillization environment of engineering rock mass in practice.Engineering rock mass many places in dynamic groundwater environment,
Rather than hydrostatic condition.The difference of dynamic and static water environment may because of solution saturation degree difference and influence argillization rate.Existing room
The sample of interior simulation test is the free argillization under no-load effect, and engineering rock mass is in the long-term of upper overlying strata soil pressure
The lower argillization occurred of effect, the effect of power also influence whether the rate of argillization.Also, the experimentation of existing argillization experimental rig
It is unfavorable for being carried out continuously and observing in real time for test.
Based on this, needs to design the argillization process for capableing of real simulation rock and facilitate economic carry out rock argillization examination
The device and test method tested.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of dynamic water circulations and the rock argillization process under loading condition
Simulator and test method can solve existing apparatus and carry out being unable to real simulation engineering in the test of rock argillization process simulation
The defect of rock mass local environment condition improves the accuracy of test result, and the efficiency, convenience and specification of test also can be improved
Property.
In order to solve the above technical problems, the technical scheme adopted by the invention is that: a kind of dynamic water circulation under loading condition
Rock argillization process simulation device, including flow control apparatus for water, flow control apparatus for water filled by argillization simulator and circulation
Set connection；
Argillization simulator includes the outer warehouse of top end opening, and outer warehouse bottom is equipped at least one interior warehouse, outer storehouse
Scale is provided on the outer wall of body；
Interior warehouse includes the container body of top and open bottom end, be provided in container body matched with rock sample it is upper
Water stone and lower permeable stone, the fixed baffle with loading device are matched with upper dankness stone, uniformly distributed on the side wall of interior warehouse
There are multiple permeable holes；
Circulator includes filter, and circulation pipe one end is connected to outer one side lower part of warehouse, and the circulation pipe other end passed through
Filter is successively connected to second flow speed controller, collector.
Flow control apparatus for water includes the first flow speed controller, and water inlet pipe one end is connected to outer warehouse top, and water inlet pipe is another
It is connected to again by water pump with liquid container after the first flow speed controller of end connection.
The junction of water inlet pipe and outer warehouse is provided with buffer subsystem.
Loading device includes the bearing plate being placed on upper dankness stone, and bearing plate is connected by pressure sensor and force-transmitting block
It connects, counterweight is installed on force-transmitting block.
A method of the test of rock argillization is carried out using above-mentioned device, method includes the following steps:
Step 1: dress sample: will test required amount of interior warehouse and be put into inside outer warehouse, under the installation of interior warehouse bottom thoroughly
Then rock sample is put into the container body of interior warehouse by water stone, install upper dankness stone on rock sample top；
Step 2: load: on upper dankness stone top, installation has the fixed baffle of loading device, is mounted on bearing plate
On permeable stone, the load quantity of counterweight, loading speed, load action time at different levels are applied according to test requirements document；
The determination method for being applied to the load p on rock sample is as follows:
Wherein, p is the load acted on rock sample；P ' is the pressure value of pressure sensor；GBFor the weight of bearing plate
Power；S is the floor space of bearing plate；
Step 3: rock argillization process simulation: pouring into the aqueous solution of certain volume in liquid container, adjusts the first flow velocity
Controller, opens water pump, and outside warehouse pours into aqueous solution to assigned scale, carries out the interaction of rock and aqueous solution；
Step 4: achievement record and index test: recording argillization process action time t, the p that is further applied load, pressure sensing respectively
The flow velocity v of the pressure value p ' of device, the first flow speed controller1With the flow velocity v of second flow speed controller2, acquire the water in collector
Solution carries out pH value measurement；Argillization substance after argillization process testing in acquisition filter device carries out quality determination, that is, completes
The test of rock argillization.
The aqueous solution being added in step 3 is the chemical solution of distilled water or rainwater or Yangtze River Water or acid rain or particular ion concentration
Liquid.
Experimental condition is Dynamic Water condition or hydrostatic condition or recirculated water condition.
Times of collection in step 4 is determined by total time on test, is acquired 1 time per hour.
A kind of dynamic water circulation provided by the invention and the rock argillization process simulation device under loading condition, beneficial effect is such as
Under:
1, the truly argillization environmental condition of model engineering rock mass, and by argillization test is further simple, convenient and specification
Change, improves the accuracy of test result.
2, easy to operate, save experimental period；The design of first flow speed controller and second flow speed controller ensures
Whole stabilization flow velocity in instrument；The design of filter is convenient for measuring the sampling of argillization soil body quality and recirculated water.
3, test method is simple and convenient, more conducively the observation of process data and record, more efficient.
4, it during testing, measures, can directly dismantle single only if you need to the argillization test data for carrying out the different role time
Storehouse in vertical is greatly improved the efficiency without stopping entire test process.
It can solve existing apparatus to carry out being unable to ring locating for real simulation engineering rock mass in the test of rock argillization process simulation
The defect of border condition not only improves the accuracy of test result, the efficiency, convenience and normalization of test also can be improved.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples:
Fig. 1 is the structural schematic diagram of apparatus of the present invention；
Fig. 2 is the schematic diagram of warehouse in apparatus of the present invention；
Fig. 3 is the arrangement schematic diagram of permeable hole on the side wall of warehouse in apparatus of the present invention；
Fig. 4 is the top view of the outer warehouse of apparatus of the present invention.
Specific embodiment
Embodiment one
As depicted in figs. 1 and 2,
A kind of dynamic water circulation and the rock argillization process simulation device under loading condition, including flow control apparatus for water, water flow
Control device is connected to by argillization simulator with circulator；
Argillization simulator includes the outer warehouse 5 of top end opening, and outer 5 bottom of warehouse is equipped at least one interior warehouse 6, outside
It is provided with scale on the outer wall of warehouse 5, convenient for reading the water level in storehouse；
Interior warehouse 6 includes the container body 17 on top and open bottom end, is provided in container body 17 and matches with rock sample 18
The upper dankness stone 15 of conjunction and lower permeable stone 19, the fixed baffle 16 with loading device are matched with upper dankness stone 15, interior warehouse 6
Side wall on it is uniformly distributed have multiple permeable holes 10, multiple permeable holes 10 are in quincuncial arrangement, as shown in Figure 3；
Circulator includes filter 7, and 20 one end of circulation pipe is connected to outer 5 one side lower part of warehouse, 20 other end of circulation pipe
It is successively connected to second flow speed controller 21, collector 8 by filter 7.
Filter 7 is the high strength glass steel bottle of a both ends connection, is laid with two layers of filter screen in bottle；Collector 8 is
One capacity is the transparent water tank of 50L, ruler with a scale, and can freely be decided whether and the liquid in control unit according to test needs
Container 1 is combined into one to form closed circuit.
Outer warehouse 5 is an inner hollow, has the high strength glass fiber reinforced plastic cylindrical container of bottom uncovered, wall thickness 5cm, high 55cm,
Interior diameter 90cm, overall diameter 100cm；
Flow control apparatus for water includes the first flow speed controller 4, and 2 one end of water inlet pipe is connected to outer 5 top of warehouse, water inlet pipe 2
The other end is connected to by water pump 3 with liquid container 1 again after connecting the first flow speed controller 4.
Liquid container 1 is the transparent water tank that capacity is 50L, ruler with a scale；Water pump 3 is preferably micro pump, for test dress
The power source set provides power and makes water portion's flowing in the device.
The junction of water inlet pipe 2 and outer warehouse 5 is provided with buffer subsystem 9.
Loading device includes the bearing plate 14 being placed on upper dankness stone 15, and bearing plate 14 is by pressure sensor 13 and passes
Power block 12 connects, and is equipped with counterweight 11 on force-transmitting block 12, force-transmitting block 12 is put by the intermediate circular hole of fixed baffle 16, with pressure
Sensor 13 completely attaches to.
Outer 5 bottom of warehouse is provided with the circular groove 22 of depth 1cm, 22 diameter of circular groove is 24cm, is convenient for interior storehouse
The insertion of body 6 is installed, as shown in Figure 4.
Embodiment two
A method of the test of rock argillization is carried out using above-mentioned apparatus, method includes the following steps:
Step 1: dress sample: will test required amount of interior warehouse 6 and be put into inside outer warehouse 5, under the installation of interior 6 bottom of warehouse
Then rock sample 18 is put into the container body 17 of interior warehouse 6 by permeable stone 19, install upper dankness stone on 18 top of rock sample
15；
Step 2: load: on 15 top of upper dankness stone, installation has the fixed baffle 16 of loading device, pacifies bearing plate 14
On upper dankness stone 15, the load quantity of counterweight 11, loading speed, load action time at different levels are applied according to test requirements document
Add；
The determination method for being applied to the load p on rock sample 18 is as follows:
Wherein, p is the load acted on rock sample 18；P ' is the pressure value of pressure sensor 13；GBFor bearing plate
14 gravity；S is the floor space of bearing plate 14；
Step 3: rock argillization process simulation: pouring into the aqueous solution of certain volume in liquid container 1, adjusts the first flow velocity
Controller 4, opens water pump 3, and outside warehouse 5 pours into aqueous solution to assigned scale, carries out the interaction of rock and aqueous solution；
Step 4: achievement record and index test: recording argillization process action time t, the p that is further applied load, pressure sensing respectively
The flow velocity v of the pressure value p ' of device 13, the first flow speed controller 41With the flow velocity v of second flow speed controller 212, acquire collector 8
In aqueous solution carry out pH value measurement；Argillization substance after argillization process testing in acquisition filter device 7 carries out quality determination,
Complete the test of rock argillization.
Times of collection in step 4 is determined by total time on test, is acquired 1 time per hour.
The aqueous solution being added in step 3 is the chemical solution of distilled water or rainwater or Yangtze River Water or acid rain or particular ion concentration
Liquid.
Experimental condition is Dynamic Water condition or hydrostatic condition or recirculated water condition, specifically:
The first: Dynamic Water condition persistently supplies water in liquid container 1 during testing, 3 continuous running of water pump, and first
Flow speed controller 4 is not closed, and the aqueous solution during test is kept to be in dynamic flow regime.
Second: that is, in step 3 hydrostatic condition is filled after aqueous solution in outer warehouse 5 to assigned scale, closes first
Flow speed controller 4 stops water pump 3 and operates, the aqueous solution during test is kept to remain static.
The third: the liquid container of flow control apparatus for water 1 and the collector 8 of circulator are closed two by recirculated water condition
It is one, forms the circuit of closure, during test, 3 continuous running of water pump, the first flow speed controller 4 and second flow speed controller
21 do not close, and keep aqueous solution to be in and circulate state.
The above embodiments are only the preferred technical solution of the present invention, and are not construed as limitation of the invention, this Shen
Please in embodiment and embodiment in feature in the absence of conflict, can mutual any combination.Protection model of the invention
The technical solution that should be recorded with claim is enclosed, the equivalent replacement side of technical characteristic in the technical solution recorded including claim
Case is protection scope.Equivalent replacement i.e. within this range is improved, also within protection scope of the present invention.
Claims (8)
1. a kind of dynamic water circulation and the rock argillization process simulation device under loading condition, including flow control apparatus for water, feature
Be: flow control apparatus for water is connected to by argillization simulator with circulator；
Argillization simulator includes the outer warehouse (5) of top end opening, and outer warehouse (5) bottom is equipped at least one interior warehouse (6),
Scale is provided on the outer wall of outer warehouse (5)；
Interior warehouse (6) includes the container body (17) of top and open bottom end, is provided in container body (17) and rock sample (18)
The upper dankness stone (15) and lower permeable stone (19) matched, fixed baffle (16) and upper dankness stone (15) phase with loading device
Cooperate, it is uniformly distributed on the side wall of interior warehouse (6) to have multiple permeable holes (10)；
Circulator includes filter (7), and circulation pipe (20) one end is connected to outer (5) one side lower part of warehouse, and circulation pipe (20) is another
One end is successively connected to second flow speed controller (21), collector (8) by filter (7).
2. a kind of dynamic water circulation according to claim 1 and the rock argillization process simulation device under loading condition, special
Sign is: flow control apparatus for water includes the first flow speed controller (4), and water inlet pipe (2) one end is connected to outer warehouse (5) top, into
It is connected to again by water pump (3) with liquid container (1) after water pipe (2) other end connection the first flow speed controller (4).
3. a kind of dynamic water circulation according to claim 1 and the rock argillization process simulation device under loading condition, special
Sign is: the junction of water inlet pipe (2) and outer warehouse (5) is provided with buffer subsystem (9).
4. a kind of dynamic water circulation according to claim 1 and the rock argillization process simulation device under loading condition, special
Sign is: loading device includes the bearing plate (14) being placed on upper dankness stone (15), and bearing plate (14) passes through pressure sensor
(13) it is connect with force-transmitting block (12), counterweight (11) is installed on force-transmitting block (12).
5. a kind of method for carrying out the test of rock argillization using device of any of claims 1-4, it is characterised in that
Method includes the following steps:
Step 1: dress sample: required amount of interior warehouse (6) will be tested and be put into outer warehouse (5) inside, installed in interior warehouse (6) bottom
Rock sample (18), is then put into the container body (17) of interior warehouse (6) by lower permeable stone (19), on rock sample (18) top
It installs upper dankness stone (15)；
Step 2: load: on upper dankness stone (15) top, installation has the fixed baffle (16) of loading device, makes bearing plate (14)
It is mounted on upper dankness stone (15), the load quantity of counterweight (11), loading speed, load action time at different levels are according to test requirements document
Applied；
The determination method for being applied to the load p on rock sample (18) is as follows:
Wherein, p is the load acted on rock sample (18)；P ' is the pressure value of pressure sensor (13)；GBFor bearing plate
(14) gravity；S is the floor space of bearing plate (14)；
Step 3: rock argillization process simulation: pouring into the aqueous solution of certain volume in liquid container (1), adjusts the first flow velocity control
Device (4) processed is opened water pump (3), and outside warehouse (5) pours into aqueous solution to assigned scale, carries out the phase interaction of rock and aqueous solution
With；
Step 4: achievement record and index test: recording argillization process action time t, the p that is further applied load, pressure sensor respectively
(13) the flow velocity v of pressure value p ', the first flow speed controller (4)1With the flow velocity v of second flow speed controller (21)2, acquisition is collected
Aqueous solution in device (8) carries out pH value measurement；Argillization substance after argillization process testing in acquisition filter device (7) carries out matter
It is fixed to measure, i.e. the test of completion rock argillization.
6. according to the method described in claim 5, it is characterized by: the aqueous solution being added in step 3 be distilled water or rainwater or
The chemical solution of Yangtze River Water or acid rain or particular ion concentration.
7. according to the method described in claim 5, it is characterized by: experimental condition is Dynamic Water condition or hydrostatic condition or circulation
Water bar part.
8. according to the method described in claim 5, it is characterized by: the times of collection in step 4 is determined by total time on test, often
Hour acquisition 1 time.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110208128A (en) * | 2019-07-08 | 2019-09-06 | 中铁十一局集团第五工程有限公司 | Rock sound water environment and dry simulation comprehensive test system |
| CN113324988A (en) * | 2021-06-01 | 2021-08-31 | 同济大学 | Variable-gradient simulation device for side slope interface instability caused by soft rock-included argillization under dry-wet alternating action |
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| CN113324988A (en) * | 2021-06-01 | 2021-08-31 | 同济大学 | Variable-gradient simulation device for side slope interface instability caused by soft rock-included argillization under dry-wet alternating action |
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| Publication number | Publication date |
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| CN109580914B (en) | 2021-11-02 |
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