CN102944665A - Shear box applicable to rock joint shearing, seepage and coupling tests and test method - Google Patents

Shear box applicable to rock joint shearing, seepage and coupling tests and test method Download PDF

Info

Publication number
CN102944665A
CN102944665A CN201210477780XA CN201210477780A CN102944665A CN 102944665 A CN102944665 A CN 102944665A CN 201210477780X A CN201210477780X A CN 201210477780XA CN 201210477780 A CN201210477780 A CN 201210477780A CN 102944665 A CN102944665 A CN 102944665A
Authority
CN
China
Prior art keywords
water
cushion block
shearing
water shutoff
shear
Prior art date
Application number
CN201210477780XA
Other languages
Chinese (zh)
Other versions
CN102944665B (en
Inventor
荣冠
侯迪
王小江
周创兵
陈益峰
Original Assignee
武汉大学
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 武汉大学 filed Critical 武汉大学
Priority to CN201210477780.XA priority Critical patent/CN102944665B/en
Publication of CN102944665A publication Critical patent/CN102944665A/en
Application granted granted Critical
Publication of CN102944665B publication Critical patent/CN102944665B/en

Links

Abstract

The invention relates to a shear box applicable to rock joint shearing, seepage and coupling tests and a test method. By the aid of the test box, water can be sealed strictly during shearing, and stable seepage water streams can be formed among joints. The shearing box is mainly composed of a bottom plate, a side plate, a lateral water sealing bag and a water inlet and outlet device. The shear box is characterized by the design of the lateral sealing bag and the method of water injection at the front end and water accumulation at the rear end. By the aid of the rock joint shearing, seepage and coupling test box, the shearing displacement within 20mm can be achieved, the seepage characteristic variation caused by dilation and contraction during rock joint shearing can be studied fully, a water head of 0.05-3.0MPa can be provided to provide conditions for studying the influence of water pressure on joint seepage fully, a minitype servo water pump is used for injecting water, stable water streams can be formed at one ends of joints, the seepage situation conforms to natural conditions, and shearing and seepage tests of joint samples under the effect of complex loads can be finished through the shearing box.

Description

Be applicable to shear box and the test method of rock joint shear seepage coupling test

Technical field

The present invention relates to a kind of shear box and test method, especially relate to the shear box and the test method that are applicable to the rock joint shear seepage coupling test.

Background technology

In recent years, along with the construction of the heavy constructions such as water conservancy and hydropower, nuke rubbish storage, oil mining, the residing geologic media of engineering rock mass becomes increasingly complex.Underground water more and more is subject to researchist's attention as the factor to rock mass engineering project stability important, the interaction of joint and underground water is often directly determining the stability and security of engineering structure in the rock mass.Therefore, the seepage characteristic at joint is very important to the rock stability problem that solves in the Practical Project in the further investigation rock mass.

Since the seventies in last century, the waterpower coupled characteristic of rock joint has been subject to the attention of academia and engineering circles.Yet the loading of early stage most of seepage tests mainly concentrates on being applied with of method corresponding force, carries out the joint and shears and seepage coupling test and few.At present rock joint shear seepage flow coupled characteristic and mechanism research has become the study hotspot in international rock mechanics field.In order to realize carrying out simultaneously seepage tests in the shear history of joint, must seal shear box.Namely when infiltration hydraulic pressure kept certain certain value or changes according to a certain rule, the rock joint sample produced relative displacement under the shearing force effect, and the infiltration current flow along joint plane, and seepage does not occur the joint periphery.The Sealing Technology of shear box is the gordian technique difficult problem of joint coupled shear-flow test equipment development.

Domestic and international many scholars in order to carry out the research of joint coupled shear-flow test, have developed relevant shearing penetration equipment or existing shearing experiment equipment have been improved.Yet, because the restriction of shear box Sealing Technology has at present joint shear test equipment water sealing effect and often can't reach requirement of experiment, be difficult to finish the shearing seepage tests of rock joint under complicated loads.Adopt upper and lower box body to form such as existing rock joint shear-seepage coupling test technology, the water shutoff material is housed in the box body, when upper box and lower box generation relative displacement, be difficult to guarantee good water shutoff.Along with the demand of large-sized rock mass engineering construction, the geotechnical study field is very urgent for the demand of a kind of effective joint of research and development shear box infiltration water encapsulating method both at home and abroad.

Yet, 1 faces the residing geologic media of engineering rock mass that becomes increasingly complex, the interaction of joint and underground water is often directly determining the stability and security of engineering structure in the rock mass, and the seepage characteristic of therefore deeply understanding joint in the rock mass is very important to the rock stability problem that solves in the Practical Project.Chinese scholars is in order to carry out the research of joint coupled shear-flow test, to the improvement of being correlated with of existing experimental facilities.Yet, because the shear box seal approach is limited, be difficult to realize the shearing permeability test of rock joint under complicated loads.The defective of 2 traditional testing equipment maximums is the deficiency of its seal means, can't realize good water sealing effect.The water flooding regime of 3 traditional joint permeability tests, adopt more the joint water inlet end concentrate the head water filling or from middle the water filling of joint plane form to around radiant flux, in itself and the rock cranny really the water movement situation have deviation.4 traditional joints are sheared permeability test and can't be realized larger shear displacemant.5 traditional testing equipments adopt the head of 3-10 m mostly, can not fully study hydraulic pressure to the impact of rock joint distortion.

Summary of the invention

The present invention mainly is the deficiency that solves the existing seal means of prior art, can't realize the technical matters of good water sealing effect etc.; A kind of shear box that is applicable to the rock joint shear seepage coupling test and test method that can form at the sample periphery the good water shutoff of effect border is provided.

The present invention also have a purpose be solve prior art existing adopt from the joint water inlet end concentrate the head water filling or from middle the water filling at joint form to around radiant flux, in itself and the rock cranny really the water movement situation have the technical matters of deviation etc.; Provide a kind of and can in the sample joint, form stable laminar flow, the more approaching shear box that is applicable to the rock joint shear seepage coupling test and the test method of the true seepage flow situation of rock mass in itself and the engineering.

It is to solve the existing technical matters that can't realize larger shear displacemant etc. of prior art that the present invention has a purpose again; Provide a kind of 20mm that can realize with interior shear displacemant, fully the shear box that is applicable to the rock joint shear seepage coupling test and the test method of cutting contracting, cutting the Penetration Signature Changing Pattern of swollen and post-peak deformation overall process at study of rocks joint.

Above-mentioned technical matters of the present invention is mainly solved by following technical proposals:

A kind of shear box that is applicable to the rock joint shear seepage coupling test, it is characterized in that, comprise base plate, be arranged on the base plate both sides by bolt fixing two block side plates vertical with base plate, described base plate and two blocks of side plates form a cavity that is used for placing rock sample; Be provided with in the described cavity for the fixing shearing cushion block of rock sample; Two sides of two blocks of side plates also be respectively arranged with for the side direction water shutoff capsule of water shutoff and be connected with side direction water shutoff capsule be used for servo oil sources to the pressurization of side direction water shutoff capsule; Also be provided with a water feed apparatus and discharging device in the described cavity, also be provided with the monitoring device for monitoring water flow and hydraulic pressure on the described discharging device.

At the above-mentioned shear box that is applicable to the rock joint shear seepage coupling test, described shearing cushion block comprises anterior cushion block and the rear portion shearing cushion block sheared; Described anterior shearing cushion block and rear portion shearing cushion block all have shears up and down the cushion block formation, i.e. shearing cushion block and rear portion down cut cushion block on anterior upper shearing cushion block, anterior down cut cushion block, the rear portion.

At the above-mentioned shear box that is applicable to the rock joint shear seepage coupling test, comprising that also fluting is arranged on horizontal water shutoff bar, fluting on the anterior upper front portion of shearing on the cushion block and is arranged on horizontal water shutoff bar under the front portion on the anterior down cut cushion block; And fluting is arranged on the rear portion on the rear portion of shearing cushion block laterally water shutoff bar, fluting and is arranged under the rear portion on the down cut cushion block of rear portion laterally water shutoff bar; Evenly be provided with the front portion that is comprised of some infiltration apertures that are arranged in parallel in horizontal water shutoff bar and the anterior lower horizontal water shutoff bar on the front portion and cross aquaporin, described water feed apparatus comprises that being separately positioned on anterior upper the shearing on cushion block and the anterior down cut cushion block crosses the water inlet aperture that aquaporin is communicated with the front portion; Described water inlet aperture links to each other by the miniature servo water pump of water inlet of water inlet pipe with control water pressure and flow; Evenly be provided with the rear portion that is formed by some infiltration apertures that are arranged in parallel in the horizontal water shutoff bar under horizontal water shutoff bar and the rear portion on the rear portion and cross aquaporin; Described discharging device comprises being separately positioned on to shear on cushion block and the rear portion down cut cushion block on the rear portion crosses the ostium excurrens that aquaporin is communicated with the rear portion; Described ostium excurrens is connected with above-mentioned water flow and water pressure monitoring device by rising pipe.

At the above-mentioned shear box that is applicable to the rock joint shear seepage coupling test, described side direction water shutoff capsule is made by polyurethane, inside is filled with hydraulic oil, on horizontal water shutoff bar on the described front portion, anterior lower horizontal water shutoff bar, the rear portion laterally under water shutoff bar, the rear portion laterally the water shutoff bar make by polyurethane.

At the above-mentioned shear box that is applicable to the rock joint shear seepage coupling test, described monitoring device comprises flow and hydraulic pressure sensor.

A kind of test method that is applicable to the shear box of rock joint shear seepage coupling test is characterized in that, may further comprise the steps:

Step 1 with the rock sample shear box of packing into, then connects water inlet pipe 8 and rising pipe 9, can put into afterwards shear testing maschine and test, and to power, the electro-hydraulic servo Loading Control is adopted in the loading of normal force in the rock sample levels; The loading of normal force can select well-established law to stress, well-established law to displacement and well-established law to three kinds of modes of rigidity;

Step 2, normal force apply the side direction oil pressure that is higher than intake pressure 0.3-0.5 MPa and apply hydraulic pressure again after loading and finishing in the side direction water shutoff capsule; The Water hydraulic static pressure loading device adopts miniature servo water pump control water filling, and current enter the aquaporin of crossing of horizontal water shutoff bar by row's tubule, and it will form stationary flow in the sample joint, and wherein water flow pressure and flow pass through servocontrol in every water injection pipe;

Step 3 is by being equipped with water flow and hydraulic pressure sensor monitoring flow and hydraulic pressure at water outlet.In shear history, shearing force acts on the shearing cushion block, then pass to test specimen by upper shearing cushion block, servocontrol is adopted in the loading of shearing force, oil pressure is by servocontrol in the side direction water shutoff capsule, make it produce certain confined pressure to test specimen, side direction water shutoff capsule and the acting in conjunction of water shutoff bar stop in the joint outward seepage of current;

Step 4 goes out the waterpower coupled characteristic of Rock Joint Plane by flow, hydraulic pressure, normal direction and tangential deformation, normal direction and the tangential stress data analysis that gathers in the test.

Therefore, the present invention has following advantage: 1. adopt the side direction water shutoff capsule of being made by elasticity and the moderate polyurethane of hardness to carry out water shutoff, side direction water shutoff bag pressure power adopts servocontrol, is marked with hydraulic oil in it, can regulate intraluminal pressure according to requirement of experiment.Side direction water shutoff capsule is close to the joint samples side under the effect of oil pressure, and it forms the good water shutoff of effect border with horizontal water shutoff bar at the sample periphery; 2. use miniature servo water pump control water filling, current enter the aquaporin of crossing of horizontal water shutoff bar by row's tubule, can form stable laminar flow in the sample joint, and the true seepage flow situation of rock mass is more approaching in itself and the engineering; 3. can realize 20 mm with interior shear displacemant, fully the study of rocks joint cuts contracting, cuts the Penetration Signature Changing Pattern of swollen and post-peak deformation overall process; 4. the head of 0.05-3.0 MPa can be provided, provide condition for fully studying hydraulic pressure to the impact that rock joint is out of shape.

Description of drawings

Fig. 1 is a kind of main TV structure schematic diagram of the present invention.

Fig. 2 is the plan structure schematic diagram of Fig. 1.

Fig. 3 is the sectional structure schematic diagram along A-A line among Fig. 1.

Fig. 4 is the sectional structure schematic diagram along B-B line among Fig. 2.

Fig. 5 is the sectional structure schematic diagram along C-C among Fig. 2.

Embodiment

Below by embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.Among the figure, shear on side plate 1, side direction water shutoff capsule 2, the front portion and shear on cushion block 15, rear portion down cut cushion block 16, anterior lower horizontal water shutoff bar 11, the rear portion horizontal water shutoff bar 17 under horizontal water shutoff bar 18, the rear portion on cushion block 3, rock sample 4, bolt 5, anterior down cut cushion block 6, base plate 7, water inlet pipe 8, rising pipe 9, the upper horizontal water shutoff bar 10 in front portion, rock joint 12, miniature servopump group 13, sensor 14, the rear portion.

Embodiment:

Paper is apparatus structure of the present invention once, as depicted in figs. 1 and 2, the present invention includes base plate 7, be arranged on base plate 7 both sides by bolt 5 and base plate 7 vertical two blocks of fixing side plates 1, base plate 7 and side plate 1 are made by steel, and base plate 7 and two blocks of side plates 1 form a cavity that is used for placing rock sample 4; Be provided with in the cavity for the fixing shearing cushion block of rock sample 4; Two sides of two blocks of side plates 1 also be respectively arranged with for the side direction water shutoff capsule 2 of water shutoff and be connected with side direction water shutoff capsule 2 be used for servo oil sources to 2 pressurizations of side direction water shutoff capsule; Also be provided with a water feed apparatus and discharging device in the described cavity, also be provided with the monitoring device for Monitoring Data on the described water feed apparatus; Monitoring device is water flow and hydraulic pressure sensor 14; Shear cushion block and comprise anterior cushion block and the rear portion shearing cushion block sheared; Described anterior shearing cushion block and rear portion shearing cushion block all have shears up and down the cushion block formation, i.e. shearing cushion block 15 and rear portion down cut cushion block 16 on anterior upper shearing cushion block 3, anterior down cut cushion block 6, the rear portion.Shear on the front portion and shear cushion block 15 on cushion block 3, anterior down cut cushion block 6, the rear portion and rear portion down cut cushion block 16 processes by the larger steel of density, have the good characteristics of high, the water-fast erosion of compressive strength.Anterior down cut cushion block 6 and rear portion down cut cushion block 16 are fixed the sample bottom by bolt, shear on the front portion and shear cushion block 15 transmission horizontal thrusts on cushion block 3 and the rear portion, promote sample and move at shear direction, realize the shear action of sample.

The present invention comprises that also fluting is arranged on horizontal water shutoff bar 10, fluting on the anterior upper front portion of shearing on the cushion block 3 and is arranged on horizontal water shutoff bar 11 under the front portion on the anterior down cut cushion block 6; And fluting is arranged on the rear portion on the rear portion of shearing cushion block 15 laterally water shutoff bar 18, fluting and is arranged under the rear portion on the rear portion down cut cushion block 16 laterally water shutoff bar 17; Aquaporin is crossed in horizontal water shutoff bar 10 and the anterior lower horizontal water shutoff bar 11 interior front portions that are comprised of some infiltration apertures that are arranged in parallel that evenly are provided with on the front portion; Water feed apparatus comprises that being separately positioned on anterior upper the shearing on cushion block 3 and the anterior down cut cushion block 6 crosses the water inlet aperture that aquaporin is communicated with the front portion; Described water inlet aperture links to each other with the miniature servo water pump of water inlet by water inlet pipe 8; On the rear portion laterally under water shutoff bar 18 and the rear portion laterally the water shutoff bar 17 interior rear portions that formed by some infiltration apertures that are arranged in parallel that evenly are provided with cross aquaporin, described discharging device comprises being separately positioned on the rear portion crosses the ostium excurrens that aquaporin is communicated with the rear portion on the shearing cushion block 15 and rear portion down cut cushion block 16; Described ostium excurrens is connected with above-mentioned monitoring device by rising pipe 9.

In the present invention, side direction water shutoff capsule 2 is made by elasticity and the moderate polyurethane of hardness, and inside is filled with hydraulic oil, and side direction water shutoff capsule is characteristics of the present invention and critical component, and it is good that polyurethane rubber has plasticity, and the characteristics such as rub little.Oil pressure in the side direction water shutoff capsule 2 adopts servocontrol, can regulate oil pressure in the capsule according to requirement of experiment.Side direction water shutoff capsule 2 will be close to the sample side under the effect of oil pressure, reach good water sealing effect.Because have pressure between side direction water shutoff capsule 2 and the sample, it will produce certain friction force.Therefore will be on the surface of contact of the outside of side direction water shutoff capsule 2 and sample coating lubricating oil, the impact that relies on simultaneously the confined pressure of servocontrol surface of contact to reduce friction.

On horizontal water shutoff bar 10 on the front portion, anterior lower horizontal water shutoff bar 11, the rear portion laterally under water shutoff bar 18, the rear portion laterally water shutoff bar 17 make by polyurethane.Be installed in respectively into the fluting position of the upper and lower shearing cushion block of water and water side and with sample and contact.It will be close to the two ends, joint under the effect of horizontal loading and side direction water shutoff bag pressure power.Laterally the water shutoff bar has row's infiltration aperture to form water inlet, exhalant canal, flows through the water that comes by the servo water pump of water inlet end and can form the steady seepage current at the joint water inlet end through horizontal water shutoff bar intake tunnel.The side direction water shutoff capsule of joint periphery and horizontal water shutoff bar will form the water-stop border around the joint samples.

Use the concrete steps of rock joint shear seepage flow coupled shear box as follows:

1, test sample is of a size of: long along seepage direction 200 mm, and wide 100 mm, high 100 mm.Sample adopts the natural joint samples of rock or the artificial joint samples of rock.Natural joint can obtain in indoor processing in well appear on-site cutting or sampling, carries out outer wrap for the irregular joint samples available water of outer shape cement mortar, makes the test specimen of 200 * 100 * 100 mm.Artificial joint samples can polish the test specimen that obtains 200 * 100 * 100 mm by gathering the complete rock samples such as grouan, marble, sandstone by artificial cutting, then the test block splitting is obtained artificial joint.

2, such as Fig. 3, shown in Figure 4, base plate 7, side plate 1 are made by steel plate, couple together by bolt 5, and sample is placed in the cavity that base plate and side plate form.Side direction water shutoff capsule 2 is housed on the side plate, and it is to be made by elasticity and the moderate polyurethane of hardness, and its resistance to compression and shear behavior are good.The rock joint sample is installed between the two side direction water shutoff capsules, and itself and side direction water shutoff capsule close contact under the oil pressure effect in capsule will avoid current to flow out from the both sides in rock joint slit.The impact of friction force when the surperficial coating lubricating oil of side direction water shutoff capsule contact is sheared at utmost to eliminate during test.The sample fore-and-aft direction is sheared cushion block 15 by shearing on the front portion on cushion block 3, anterior down cut cushion block 6, the rear portion, rear portion down cut cushion block 16 is fixing.Shear up and down laterally water shutoff bar 17 is housed respectively on the cushion block on anterior horizontal water shutoff bar 10, anterior lower horizontal water shutoff bar 11, the rear portion laterally under water shutoff bar 18, the rear portion, avoid current to flow out from the slit of shearing between cushion block and the rock sample.Side direction water shutoff capsule can be good at playing water sealing effect with horizontal water shutoff bar acting in conjunction.Shear box biside plate 1, base plate 7, anterior down cut cushion block 6 and rear portion down cut cushion block 16 all are fixed together by bolt 5.

3, then the shear box of according to the method described above sample being packed into connects water inlet pipe 8 and rising pipe 9, can put into afterwards shear testing maschine and test.At first add normal force, the electro-hydraulic servo Loading Control is adopted in the loading of normal force.The loading of normal force can select well-established law to stress, well-established law to displacement and well-established law to three kinds of modes of rigidity.Normal force applies the side direction oil pressure that is higher than intake pressure 0.3-0.5 MPa and applies hydraulic pressure again after loading and finishing in the side direction water shutoff capsule.The Water hydraulic static pressure loading device adopts miniature servo water pump control water filling, and current enter the aquaporin of crossing of horizontal water shutoff bar by row's tubule, and it will form stationary flow in the sample joint.But wherein water flow pressure and flow servocontrol in every water injection pipe.At water outlet sensor 14 monitoring flow and hydraulic pressure are installed.In shear history, shearing force acts on the shearing cushion block, then passes to test specimen by upper shearing cushion block.Servocontrol is adopted in the loading of shearing force.Oil pressure is by servocontrol in the side direction water shutoff capsule 2, make it produce certain confined pressure to test specimen, laterally laterally water shutoff bar 17 actings in conjunction under water shutoff bar 18, the rear portion on horizontal water shutoff bar 10 on side direction water shutoff capsule 2, the front portion, anterior lower horizontal water shutoff bar 11, the rear portion stop in the joint outward seepage of current.

Specific embodiment described herein only is to the explanation for example of the present invention's spirit.Those skilled in the art can make various modifications or replenish or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.

Shear terms such as shearing on cushion block 15, rear portion down cut cushion block 16, anterior lower horizontal water shutoff bar 11, the rear portion under horizontal water shutoff bar 18, the rear portion horizontal water shutoff bar 17 on cushion block 3, rock sample 4, bolt 5, anterior down cut cushion block 6, base plate 7, water inlet pipe 8, rising pipe 9, the upper horizontal water shutoff bar 10 in front portion, rock joint 12, miniature servopump group 13, sensor 14, the rear portion although this paper has more used on side plate 1, side direction water shutoff capsule 2, the front portion, do not get rid of the possibility of using other term.Using these terms only is in order to describe more easily and explain essence of the present invention; They are construed to any additional restriction all is contrary with spirit of the present invention.

Claims (6)

1. shear box that is applicable to the rock joint shear seepage coupling test, it is characterized in that, comprise base plate (7), be arranged on base plate (7) both sides by bolt (5) fixing two block side plates (1) vertical with base plate (7), described base plate (7) and two blocks of side plates (1) form a cavity that is used for placing rock sample (4); Be provided with in the described cavity for the fixing shearing cushion block of rock sample (4); Two sides of two blocks of side plates (1) also be respectively arranged with for the side direction water shutoff capsule (2) of water shutoff and be connected with side direction water shutoff capsule (2) be used for servo oil sources to side direction water shutoff capsule (2) pressurization; Also be provided with a water feed apparatus and discharging device in the described cavity, also be provided with water flow and water pressure monitoring device for Monitoring Data on the described water feed apparatus.
2. the shear box that is applicable to the rock joint shear seepage coupling test according to claim 1 is characterized in that, described shearing cushion block comprises anterior cushion block and the rear portion shearing cushion block sheared; Described anterior shearing cushion block and rear portion shearing cushion block all have shears up and down the cushion block formation, namely shears cushion block (15) and rear portion down cut cushion block (16) on anterior upper shearing cushion block (3), anterior down cut cushion block (6), the rear portion.
3. the shear box that is applicable to the rock joint shear seepage coupling test according to claim 2, it is characterized in that, comprising that also fluting is arranged on horizontal water shutoff bar (10), fluting on the anterior upper front portion of shearing on the cushion block (3) and is arranged on horizontal water shutoff bar (11) under the front portion on the anterior down cut cushion block (6); And fluting is arranged on the rear portion of shearing cushion block (15) on the rear portion laterally water shutoff bar (18), fluting and is arranged under the rear portion on the rear portion down cut cushion block (16) laterally water shutoff bar (17); Evenly be provided with the front portion that is formed by some infiltration apertures that are arranged in parallel in horizontal water shutoff bar (10) and the anterior lower horizontal water shutoff bar (11) on the front portion and cross aquaporin; Described water feed apparatus comprise be separately positioned on anterior upper shear cushion block (3) and anterior down cut cushion block (6) upper with the front portion the water inlet aperture that is communicated with of aquaporin; Described water inlet aperture links to each other by the miniature servo water pump of water inlet of water inlet pipe (8) with control water pressure and flow; Evenly be provided with the rear portion that is comprised of some infiltration apertures that are arranged in parallel in the horizontal water shutoff bar (17) under horizontal water shutoff bar (18) and the rear portion on the rear portion and cross aquaporin, described discharging device comprises being separately positioned on to shear on the rear portion on cushion block (15) and the rear portion down cut cushion block (16) crosses the ostium excurrens that aquaporin is communicated with the rear portion; Described ostium excurrens is connected with above-mentioned water flow and water pressure monitoring device by rising pipe (9).
4. the shear box that is applicable to the rock joint shear seepage coupling test according to claim 3, it is characterized in that, described side direction water shutoff capsule (2) is made by polyurethane, inside is filled with hydraulic oil, on horizontal water shutoff bar (10) on the described front portion, anterior lower horizontal water shutoff bar (11), the rear portion laterally under water shutoff bar (18), the rear portion laterally water shutoff bar (17) make by polyurethane.
5. the shear box that is applicable to the rock joint shear seepage coupling test according to claim 1 is characterized in that, described monitoring device comprises water flow and hydraulic pressure sensor (14).
6. a test method that is applicable to the shear box of rock joint shear seepage coupling test according to claim 1 is characterized in that, may further comprise the steps:
Step 1 with the rock sample shear box of packing into, then connects water inlet pipe (8) and rising pipe (9), can put into afterwards shear testing maschine and test, and to power, the electro-hydraulic servo Loading Control is adopted in the loading of normal force in the rock sample levels; The loading of normal force can select well-established law to stress, well-established law to displacement and well-established law to three kinds of modes of rigidity;
Step 2, normal force apply the side direction oil pressure that is higher than intake pressure 0.3-0.5 MPa and apply hydraulic pressure again after loading and finishing in the side direction water shutoff capsule (2); The Water hydraulic static pressure loading device adopts miniature servo water pump control water filling, current enter on the rear portion laterally under water shutoff bar 18, the rear portion laterally the rear portion of water shutoff bar 17 by row's tubule and cross aquaporin, it will form stationary flow in the sample joint, wherein water flow pressure and flow pass through servocontrol in every water injection pipe;
Step 3, by water flow and hydraulic pressure sensor (14) monitoring flow and hydraulic pressure are installed at water outlet, in shear history, shearing force acts on anterior upper the shearing and shears on the cushion block 15 on cushion block 3 and the rear portion, then shearing cushion block 15 passes to test specimen on cushion block 3 and the rear portion by shearing on the front portion, servocontrol is adopted in the loading of shearing force, oil pressure is by servocontrol in the side direction water shutoff capsule (2), make it produce certain confined pressure to test specimen, side direction water shutoff capsule (2) and the acting in conjunction of water shutoff bar stop in the joint outward seepage of current;
Step 4 goes out the waterpower coupled characteristic of Rock Joint Plane by flow, hydraulic pressure, normal direction and tangential deformation, normal direction and the tangential stress data analysis that gathers in the test.
CN201210477780.XA 2012-11-22 2012-11-22 Be applicable to shear box and the test method of rock joint shear seepage coupling test CN102944665B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210477780.XA CN102944665B (en) 2012-11-22 2012-11-22 Be applicable to shear box and the test method of rock joint shear seepage coupling test

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210477780.XA CN102944665B (en) 2012-11-22 2012-11-22 Be applicable to shear box and the test method of rock joint shear seepage coupling test

Publications (2)

Publication Number Publication Date
CN102944665A true CN102944665A (en) 2013-02-27
CN102944665B CN102944665B (en) 2015-10-21

Family

ID=47727626

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210477780.XA CN102944665B (en) 2012-11-22 2012-11-22 Be applicable to shear box and the test method of rock joint shear seepage coupling test

Country Status (1)

Country Link
CN (1) CN102944665B (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103760040A (en) * 2014-01-24 2014-04-30 重庆大学 Fluid-solid coupling coal petrography shear-seepage test shearing and sliding combined shearing box
CN104266911A (en) * 2014-08-18 2015-01-07 西南交通大学 Device and method for horseshoe-shaped tunnel model test water pressure loading
CN104865108A (en) * 2015-01-13 2015-08-26 中国水利水电科学研究院 Sample production apparatus suitable for jointed rock direct shear test, sample production and shearing apparatus, and sample production and shearing test method
CN105203411A (en) * 2015-11-06 2015-12-30 武汉大学 Slit shear-seepage coupling test system of triaxial cell and test method
CN105675401A (en) * 2016-01-11 2016-06-15 中国人民解放军理工大学 Flexible capsule for deep rock mass simulation test loading
CN105807006A (en) * 2016-05-04 2016-07-27 重庆大学 Simulation test method for liquid flow of fissure surface
CN105806720A (en) * 2016-05-04 2016-07-27 重庆大学 Simulation test method for coal and gas outburst under effect of shearing stress
CN106918552A (en) * 2017-03-08 2017-07-04 中国石油大学(北京) Rock frictional test experimental provision and method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2532480Y (en) * 2002-03-22 2003-01-22 中国矿业大学 Auxiliary device for cracked rock and non-consolidation porous material permeability test
CN101034088A (en) * 2007-04-18 2007-09-12 同济大学 Rock joint shear-seepage coupling experiment box
CN101059495A (en) * 2007-05-09 2007-10-24 同济大学 Rock joint shearing-seepage coupling test system
CN102253183A (en) * 2011-06-28 2011-11-23 山东科技大学 Shear-seepage coupling test system for rock cracks under action of confining pressure
CN102323142A (en) * 2011-09-05 2012-01-18 中国科学院武汉岩土力学研究所 Shear box device for rock indoor direct shear test
CN202903786U (en) * 2012-11-22 2013-04-24 武汉大学 Shearing box applicable to rock-joint shearing and seepage coupling test

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2532480Y (en) * 2002-03-22 2003-01-22 中国矿业大学 Auxiliary device for cracked rock and non-consolidation porous material permeability test
CN101034088A (en) * 2007-04-18 2007-09-12 同济大学 Rock joint shear-seepage coupling experiment box
CN101059495A (en) * 2007-05-09 2007-10-24 同济大学 Rock joint shearing-seepage coupling test system
CN102253183A (en) * 2011-06-28 2011-11-23 山东科技大学 Shear-seepage coupling test system for rock cracks under action of confining pressure
CN102323142A (en) * 2011-09-05 2012-01-18 中国科学院武汉岩土力学研究所 Shear box device for rock indoor direct shear test
CN202903786U (en) * 2012-11-22 2013-04-24 武汉大学 Shearing box applicable to rock-joint shearing and seepage coupling test

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
夏才初等: "岩石节理剪切-渗流耦合试验系统的研制", 《岩石力学与工程学报》, vol. 27, no. 6, 30 June 2008 (2008-06-30) *
王刚等: "新型数控岩石节理剪切渗流试验台的设计与应用", 《岩土力学》, vol. 30, no. 10, 31 October 2009 (2009-10-31) *
蒋宇静等: "岩石节理剪切渗流耦合试验及分析", 《岩石力学与工程学报》, vol. 26, no. 11, 30 November 2007 (2007-11-30) *

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103760040A (en) * 2014-01-24 2014-04-30 重庆大学 Fluid-solid coupling coal petrography shear-seepage test shearing and sliding combined shearing box
CN103760040B (en) * 2014-01-24 2016-02-24 重庆大学 Fluid structure interaction coal rock shear-seepage test shearing slip combined shear box
CN104266911A (en) * 2014-08-18 2015-01-07 西南交通大学 Device and method for horseshoe-shaped tunnel model test water pressure loading
CN104865108A (en) * 2015-01-13 2015-08-26 中国水利水电科学研究院 Sample production apparatus suitable for jointed rock direct shear test, sample production and shearing apparatus, and sample production and shearing test method
CN104865108B (en) * 2015-01-13 2017-06-16 中国水利水电科学研究院 Sample preparation device, sample preparation shear and sample preparation shearing test method suitable for jointed rock mass direct shear test
CN105203411A (en) * 2015-11-06 2015-12-30 武汉大学 Slit shear-seepage coupling test system of triaxial cell and test method
CN105675401A (en) * 2016-01-11 2016-06-15 中国人民解放军理工大学 Flexible capsule for deep rock mass simulation test loading
CN105807006A (en) * 2016-05-04 2016-07-27 重庆大学 Simulation test method for liquid flow of fissure surface
CN105806720A (en) * 2016-05-04 2016-07-27 重庆大学 Simulation test method for coal and gas outburst under effect of shearing stress
CN105806720B (en) * 2016-05-04 2018-07-06 重庆大学 The lower coal and gas prominent simulation experiment method of shear stress effect
CN106918552A (en) * 2017-03-08 2017-07-04 中国石油大学(北京) Rock frictional test experimental provision and method

Also Published As

Publication number Publication date
CN102944665B (en) 2015-10-21

Similar Documents

Publication Publication Date Title
Gong et al. Rock burst and slabbing failure and its influence on TBM excavation at headrace tunnels in Jinping II hydropower station
Cui et al. Chinese karst geology and measures to prevent geohazards during shield tunnelling in karst region with caves
Liu et al. Numerical investigation of underlying tunnel heave during a new tunnel construction
CN101086494B (en) Foundation and slope engineering model test platform
Cheng et al. Research and practice on fluctuation water injection technology at low permeability coal seam
CN104142277B (en) A kind of soil body torsional shear infiltration experiment device and method of testing
CN100390357C (en) Analogue experiment stand for interreaction of tunnel structure, surrounding rock and underground water
CN104614497B (en) True triaxial stream pressure fracturing, slot, seepage flow, gas drive integrated experimental system
Chen et al. An experimental and analytical research on the evolution of mining cracks in deep floor rock mass
Xie et al. Analysis of ground surface settlement induced by the construction of a large-diameter shield-driven tunnel in Shanghai, China
CN103616287A (en) Laboratory model testing device for tunnel excavation
CN201886019U (en) Solid-gas coupling integrated testing system for radon gas surface exploration overlying strata mining-induced fissures
Wang et al. Theoretical and experimental study of external water pressure on tunnel lining in controlled drainage under high water level
CN103398902B (en) Test apparatus for flexible loading and instantaneously unloading of high geostress, and test method
Li et al. Experimental study of water curtain performance for gas storage in an underground cavern
Xu et al. Laboratory model tests and field investigations of EPB shield machine tunnelling in soft ground in Shanghai
CN106198934B (en) The experimental rig and test method of a kind of crack rock landslide chip off-falling and crack gushing water
CN104878739B (en) Drainage material assembly capable of being transversely connected with plastic drainage boards and method for constructing drainage material assembly
CN101949816A (en) Test method for measuring plastic concrete permeability coefficient
CN204238170U (en) A kind of open channel scouring on bedrock model test apparatus
CN202081909U (en) Dynamic monitoring simulating device for influence radius during coal bed methane well extraction
Jiang et al. Model test to investigate waterproof-resistant slab minimum safety thickness for water inrush geohazards
CN106323750A (en) Variable ground pressure tunnel excavating load experiment platform
CN108169427B (en) Tunnel water inrush physical simulation test system and method for plane stress model
CN103278376A (en) Test device of stability control model of earth pressure balance shield excavation surface

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20151021

Termination date: 20161122