CN108613909B - Rock mass loosening ring testing method based on drilling water pressing effect - Google Patents

Rock mass loosening ring testing method based on drilling water pressing effect Download PDF

Info

Publication number
CN108613909B
CN108613909B CN201810376008.6A CN201810376008A CN108613909B CN 108613909 B CN108613909 B CN 108613909B CN 201810376008 A CN201810376008 A CN 201810376008A CN 108613909 B CN108613909 B CN 108613909B
Authority
CN
China
Prior art keywords
water
pressure
hole
injection cavity
water injection
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
CN201810376008.6A
Other languages
Chinese (zh)
Other versions
CN108613909A (en
Inventor
宋文成
梁正召
武娜
李�根
马克
张轩
郎颖娴
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dalian University of Technology
Original Assignee
Dalian University of Technology
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 Dalian University of Technology filed Critical Dalian University of Technology
Priority to CN201810376008.6A priority Critical patent/CN108613909B/en
Publication of CN108613909A publication Critical patent/CN108613909A/en
Application granted granted Critical
Publication of CN108613909B publication Critical patent/CN108613909B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
    • G01N15/0806—Details, e.g. sample holders, mounting samples for testing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
    • G01N15/082—Investigating permeability by forcing a fluid through a sample
    • G01N15/0826—Investigating permeability by forcing a fluid through a sample and measuring fluid flow rate, i.e. permeation rate or pressure change

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Biochemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Fluid Mechanics (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • Examining Or Testing Airtightness (AREA)

Abstract

本发明属于岩体破坏范围及渗透性测定技术领域,公开了基于钻孔压水作用的岩体松动圈测试方法,该测试方法所用的观测仪包括测试探头、钻机、钻杆、控制操作台。测试探头包括前部封堵器、中部封堵器、尾部封堵器、转换器和连通管，封堵器包括漏水管、连接在漏水管两端的接头和橡胶囊，橡胶囊包绕在漏水管外围，与漏水管之间形成一封堵空腔，外界水源注入所述封堵空腔起胀橡胶囊，与钻孔形成注水空腔。该测试装置可以利用封堵高压水源向观测低压水源的转换，实现同一水源下封堵过程和测试过程在各自的压力下工作，减少钻孔内管道为一根，消除钻杆与软管的缠绕问题，提高压力转换稳定性和每次推进测量效率。

Figure 201810376008

The invention belongs to the technical field of rock mass failure range and permeability measurement, and discloses a rock mass loose circle testing method based on the action of borehole water pressure. The test probe includes a front occluder, a middle occluder, a tail occluder, a converter and a connecting pipe. The occluder includes a leaking pipe, a joint connected to both ends of the leaking pipe and a rubber bag, and the rubber bag is wrapped around the leaking pipe. A sealing cavity is formed between the periphery and the leaking pipe, and the external water source is injected into the sealing cavity to inflate the rubber bag to form a water injection cavity with the drilled hole. The test device can use the conversion of blocking high-pressure water source to observing low-pressure water source, realize the blocking process and testing process under the same water source work under their respective pressures, reduce the number of pipes in the borehole to one, and eliminate the entanglement of drill pipes and hoses problem, improve pressure transition stability and measurement efficiency per push.

Figure 201810376008

Description

Rock mass loosening ring testing method based on drilling water pressing effect
Technical Field
The invention belongs to the technical field of rock mass destruction range and permeability measurement, and particularly relates to a rock mass loosening ring testing method based on a drilling water pressing effect.
Background
The measurement of the mining fracture zone range and permeability of the rock mass is a basic parameter for researching the rock mass destruction characteristics, and has important significance for further researching the relation between the mining fracture zone range and the rock mass movement rule and a stress field, and the traditional actual measurement device mainly comprises a direct current electric method, a transient electromagnetic method, a micro-seismic detection method and a water pressure test method. The reliability of a water pressure test method is the highest, a traditional device 'double-end side leakage device' is adopted to carry out water injection and drainage test, and the development height or depth of the rock stratum affected by mining is judged. There are two external systems of water injection operation panel and shutoff operation panel among the traditional device, operating personnel is more relatively, it has 2 to correspond the pipeline in the drilling, take place the intertwine problem easily at propulsive in-process, light then cause the device shutoff or observe the process unstable, heavy then break the gas supply line easily, cause the unable normal work of equipment, and, traditional device is a test unit, detection efficiency is low, how can realize the multistage and measure, reduce pipeline quantity in the drilling, and can effectual control water pressure, prior art fails to solve above-mentioned problem simultaneously.
Disclosure of Invention
The invention aims to provide a rock mass loosening ring testing method based on a drilling water pressing effect.
The technical scheme of the invention is as follows:
a rock mass loosening ring test method based on the action of drilling water pressure is provided, the tester comprises a test probe, a control operation platform 38, a drilling machine 14 and a drill rod 12;
the test probe comprises a plugging device, a converter 6 and a communicating pipe 28, wherein the plugging device comprises a front plugging device 35, a middle plugging device 36 and a tail plugging device 37; the stopper comprises a water leakage pipe 3, a joint and a rubber bag 5, wherein the joint and the rubber bag 5 are connected to two ends of the water leakage pipe, the rubber bag 5 is wrapped around the periphery of the water leakage pipe 3, a blocking cavity 30 is formed between the rubber bag and the water leakage pipe 3, an external water source is injected into a water leakage hole in the water leakage pipe 3, the blocking cavity 30 expands the rubber bag 5, and a water injection cavity is formed between the blocking cavity 30 and a drill hole 31;
the drilling machine 14 is connected with the test probe through a drill rod 12 and is used for lengthening and propelling the test probe to a designated area, the drill rod 12 is a hollow rod, is in threaded connection and is detachable, and a high-pressure water source can be conveyed inside the drill rod;
the control operation platform 38 comprises a water discharge switch 15, a flow meter 16, a mechanical pressure gauge 17, a master control switch 18 and an electronic pressure gauge 19, and the control operation platform 38 is connected with the drilling machine 14 through a high-pressure hose 13 and is responsible for providing an external water source with specified pressure for the test probe;
the front plugging device 35 comprises a first connector 2, a water leakage pipe 3, a second connector 4 and a rubber bag 5, wherein the first connector 2 and the second connector 4 are in threaded connection with the water leakage pipe 3, the rubber bag 5 is wound outside the water leakage pipe 3 and fixed outside the first connector 2 and the second connector 4 through a fastening ring 24 to form a plugging cavity 30 with the water leakage pipe 3;
the outer end of the first connector 2 is in threaded connection with a guide head 1, and the guide head 1 plays a role in guiding a test probe to smoothly slide in the drill hole 31;
the middle stopper 36 comprises a joint II 4, a water leakage pipe 3, a joint III 7 and a rubber bag 5, and the rubber bag 5 is fixed outside the joint II 4 and the joint III 7 through a fastening ring 24;
the tail plugging device 37 comprises two connectors III 7, a water leakage pipe 3 and a rubber bag 5, wherein the rubber bag 5 is fixed between the two connectors III 7 through a fastening ring 24;
the outer part of the joint III is in threaded connection with a circular baffle 11, and the diameter of the circular baffle 11 is larger than that of the rubber bag 5, so that the rubber bag 5 is prevented from falling off; the circle center baffle 11 is in threaded connection and can be disassembled, so that the rubber bag 5 can be conveniently replaced;
a first water injection cavity 29 and a second water injection cavity 34 are respectively formed between the front plugging device 35, the middle plugging device 36 and the tail plugging device 37 and the drill hole 31;
the converter 6 comprises a base body, a conversion body 10, a return spring 9 and an adjusting screw 8, and the converter 6 converts a high-pressure water source in the communicating pipe 28 into a low-pressure water source and conveys the low-pressure water source to the first water injection cavity 29 and the second water injection cavity 34;
the converter 6 is provided with a central through hole 32 and four peripheral through holes 33, and the four peripheral through holes 33 are symmetrically distributed around the central through hole 32;
the aperture of the left end of the central through hole 32 is smaller than that of the right end, and the side wall of each peripheral through hole 33 is correspondingly provided with a side leakage hole 25;
the conversion body 10, the reset spring 9 and the adjusting screw 8 are sequentially arranged in the peripheral through hole 33, threads are arranged on the inner wall of the left side of the peripheral through hole 33 and matched with the adjusting screw 8, so that the adjusting screw 8 rotates in the peripheral through hole 33, and the reset spring 9 is compressed to control the opening pressure of the conversion body 10;
the side wall of the adjusting screw 8 is provided with a hexagonal through hole 21, so that the adjusting screw 8 can be rotated conveniently, and the water pressure of the first water injection cavity 29 and the second water injection cavity 34 can be fed back conveniently, and the left end surface of the conversion body 10 can be adjusted conveniently;
the conical conversion body 10 is a cylinder with unequal diameters, the diameter of the left end surface of the conical conversion body is larger than that of the right end surface of the conical conversion body, a sealing conical surface 26 is formed at the transition position of the cylinder with unequal diameters and is matched with the sealing conical surface 26 on the inner wall of the peripheral through hole 33, and the sealing conical surface 26 forms an angle of 30 degrees;
an L-shaped water through hole 23 is formed in the conical conversion body 10, an annular water tank 22 is formed on the cylindrical outer surface close to the left end face of the conical conversion body 10, and the water through hole 23 is communicated with the annular water tank 22; when the external water source pushes the conical conversion body 10 to move leftwards, the annular water tank 22 is communicated with the side leakage hole 20, so that the external water source enters the first water injection cavity 29 or the second water injection cavity 34;
the working principle of the converter 6 is as follows:
(1) when the tapered transition body 10 satisfies PLeft side ofSLeft side of+kx≤PRight sideSRight sideWhen the water is injected into the first water injection cavity 29 or the second water injection cavity 34, the conical conversion body 10 moves leftwards, the annular water tank 22 is communicated with the side leakage hole 20, and water injection observation is carried out on the first water injection cavity 29 or the second water injection cavity 34;
(2) when the tapered transition body 10 satisfies PLeft side ofSLeft side of+kx≥PRight sideSRight sideWhen the water is injected into the water injection cavity, the conical conversion body 10 moves rightwards, the annular water tank 22 is sealed by the inner wall of the peripheral through hole 33, and water supply to the water injection cavity is stopped;
(3) if PRight sideToo large to prevent PRight sideWhen the inner wall of the drilling hole 31 of the water injection cavity part is damaged by extreme water pressure, the conical conversion body 10 moves leftwards until the annular water tank 22 moves to the left end of the side leakage hole 20 to form a secondary sealing effect with the inner wall of the peripheral through hole 33;
wherein, PLeft side ofObserving the water source pressure for the first or second water injection cavity, wherein the water source pressure is about 0.5MPa generally; pRight sideThe pressure of the external water supply is generally about 1.5MPa, SLeft side ofIs the water passing area, S, of the left end surface of the conical conversion bodyRight sideThe water passing area of the right end face of the conical conversion body, k is the elastic coefficient of the return spring, and x is the compression amount;
the control operation platform 38 comprises a water drain switch 15, a flow meter 16, a first pressure meter 17, a master control switch 18 and a second pressure meter 19, wherein the water drain switch 15 is responsible for releasing pressure water in the test probe, so that the rubber bag 5 is separated from the drill hole 31, and the drill 14 can conveniently push the test probe; the master control switch 18 is responsible for stopping supplying external water sources, the flow meter 16 is responsible for detecting real-time water quantity input to the test probe by the external water sources, the first pressure meter 17 is a mechanical meter, the second pressure meter 19 is an electronic meter, the readings of the first pressure meter and the second pressure meter are compared and checked with each other, and if the readings are approximately equal, the pressure is effective;
the quantity of water injection cavity, increase according to the demand, the design mode is the same.
The method comprises the following specific steps:
(1) drilling construction: according to construction requirements, 3-5 drill holes with different directions and inclination angles a are constructed in the region of the rock mass 27 to be measured by using the drilling machine 14, the diameter of each drill hole 31 is 89mm, the length of each drill hole is about 70m, and chips in the drill holes 31 are cleaned;
(2) installing equipment: mounting each part of the test probe, sequentially connecting a drilling machine 14, a drill rod 12, a high-pressure hose 13 and a control operation table 38, and then transferring the test probe to the initial position of the drill hole 31 by using the drilling machine 14;
(3) and (3) sealing and checking: closing a water drain switch 15 of a control operation console 38, opening a master control switch 18, providing detection water pressure for a test probe, carrying out plugging tightness test on the rubber bag 5, if no obvious water leakage phenomenon exists, carrying out the next step of operation, otherwise, returning to the operation of the step (2), and checking the connection and installation conditions of each part until the connection and installation conditions are qualified;
(4) carrying out a pressurized water test: after the sealing test is qualified, performing a water pressing test to enable the test probe to be in an initial position, re-opening the master switch 18 on the control operation platform 38 and closing the water discharging switch 15 to provide a high-pressure water source for the test probe, entering the plugging cavity 30 through the communicating pipe 28 and the water leakage pipe 3, expanding the rubber bags 5 of the front plugging device 35, the middle plugging device 36 and the tail plugging device 37 to form a first water injection cavity 29 and a second water injection cavity 34 with the drill hole 31 respectively, adjusting the pressure of the external water source to gradually increase to 1.5MPa, starting the converter 6 of the pressure of the first water injection cavity 29 at the moment, injecting water into the first water injection cavity 29, and recording the indication Q of the flow meter when the flow meter is stable at the moment after the indication number of the flow meter is stable at the momenti1Continuously increasing the pressure of the external water source to 1.7MPa, at the moment, the converter 6 of the first water injection cavity 29 is closed due to the pressure rise, the water supply to the first water injection cavity 29 is stopped, the converter 6 of the second water injection cavity 34 is opened, water is injected into the second water injection cavity 34, and after the flow rate display number is stable, the display number Q of the flow rate display at the stable moment is recordedi2And recording the detection distance Li1And Li2；
(5) Pressure relief and propulsion: closing the master control switch 18, opening the water drain switch 15, releasing the pressure of the blocking cavity 30, closing the water drain switch 15 after the rubber bag 5 is separated from the drill hole 31, taking another drill rod 12 to lengthen the test probe, propelling the test probe to the next detection area by using the drill 14, and repeating the operation of the step (4) until the full length of the drill hole is detected;
(6) calculating and analyzing: respectively drawing different borehole inflow distribution maps according to the length of the borehole 31 and the corresponding water leakage of the observation hole section, analyzing the fracture development characteristics and permeability characteristics of different positions in the borehole length range, and further combining the borehole inclination angle a of different directions and the accumulated length (namely the water leakage mutation zero point) L of the continuous water leakage sectionn1+Ln2And (n is 1+2+. and k), calculating the damage range of the rock mass with different spatial ranges.
The invention has the beneficial effects that:
(1) compared with the prior art, the rock mass loosening ring tester with the function of water pressing in the drill hole has the advantages that the plugging and testing integration of the testing probe is realized, the number of pipelines which work in the drill hole at the same time is reduced to 1, the problem that multiple pipelines in the drill hole are mutually wound in the propelling process is solved, and the stability of the rock mass damage range measuring process is improved.
(2) The device has realized utilizing same external water source, makes observation process and shutoff process work problem under pressure separately, and can avoid observing the destructive action of water source pressure excess to the drilling crack, has improved the accuracy nature of rock mass destruction scope measurement process.
(3) The design of the conical conversion body in the converter, which is internally provided with the return spring and the sealing conical surface, not only facilitates the easy in-time resetting of the conical conversion body, improves the stability of the working process of the converter, but also solves the problem of the sealing property of plugging a water source to observe the conversion of the water source, and ensures the opening pressure.
(4) The design of the adjusting screw with the hexagonal through hole in the converter not only facilitates the compression and the reset spring of the rotating adjusting screw, controls the conical conversion body to have different opening and conversion pressures, has wide adjustment range, adapts to different working requirements, and can enable low-pressure water in the water injection cavity to act on the side surface of the conical conversion body through the feedback of the through hole in the adjusting screw, so that the pressure regulation is more sensitive and balanced.
(5) The design of annular water tank in the toper conversion body can solve the limbers and the converter delivery port non-corresponding problem in the toper conversion body, guarantees no matter how the toper conversion body rotates, and the water in its limbers all can flow to the converter export through annular water tank.
(6) The device has realized once advancing multistage measurement process in proper order, has improved and has advanced observation efficiency at every turn, compares with traditional device, has improved detection speed, has shortened the exploration time.
Drawings
FIG. 1 is a schematic diagram of the overall structure and observation state of a rock mass loosening ring tester under the action of drilling water pressure;
FIG. 2 is a schematic diagram of the pressure relief propulsion state of the rock mass loosening ring tester under the action of drilling and water pressing;
FIG. 3 is a schematic structural diagram of a test probe in the rock mass loosening coil tester for borehole water pressing according to the present invention;
FIG. 4 is a schematic structural view of a front plugging device in the rock mass loosening ring tester under the action of drilling water pressure;
FIG. 5 is a schematic structural view of a middle stopper of the rock mass loosening ring tester under the action of drilling water according to the present invention;
FIG. 6 is a schematic structural view of a tail plugging device in the rock mass loosening ring tester under the action of drilling water according to the invention;
FIG. 7(a) is a front view of a converter structure in the rock mass loosening ring tester for borehole water pressing according to the present invention;
FIG. 7(b) is a side view of the structure of the converter in the rock mass loosening ring tester for borehole water pressing according to the present invention;
FIG. 8(a) is a schematic view of the static state of a converter in the rock mass loosening ring tester under the action of drilling water according to the present invention;
FIG. 8(b) is a schematic view of the working state of the converter in the rock mass loosening ring tester under the action of drilling water according to the present invention;
FIG. 9(a) is a front view of a cone-shaped conversion body structure in the rock mass loosening collar tester for borehole water pressing according to the present invention;
FIG. 9(b) is a rear view of a cone-shaped transition body structure in the rock mass loosening collar tester for borehole water pressing according to the present invention;
FIG. 9(c) is a structural side view of a conical conversion body in the rock mass loosening collar tester under the action of drilling water pressure according to the present invention;
FIG. 10(a) is a front view of an adjusting screw structure in the rock mass loosening ring tester for borehole water pressing according to the present invention;
FIG. 10(b) is a side view of the structure of an adjusting screw in the rock mass loosening ring tester for borehole water pressing according to the present invention;
in the figure: 1, a guide head; 2, connecting the first joint; 3, a water leakage pipe; 4, a second joint; 5, a rubber bag; 6 a converter; 7, a joint III; 8, adjusting screws; 9 a return spring; 10 a conical conversion body; 11 a circular baffle; 12 a drill pipe; 13 a high pressure hose; 14, a drilling machine; 15 a water discharging switch; 16 flow meters; 17, a first pressure gauge; 18 a master control switch; 19, a second pressure gauge; 20 side leak holes; 21 hexagonal through holes; 22 an annular water tank; 23, a water through hole; 24 fastening rings; 25 water leakage holes; 26 sealing the conical surface; 27 rock mass to be measured; 28 communicating pipes; 29, a first water injection cavity; 30, plugging the cavity; 31, drilling a hole; 32 a central through hole; 33 peripheral through holes; no. 34 water injection cavity; 35 a front occluder; 36 a mid-occlusion device; 37 tail occluder; 38 control the console.
Detailed Description
The following further describes a specific embodiment of the present invention with reference to the drawings and technical solutions.
The rock mass loosening ring tester based on the drilling water pressing effect comprises a test probe, a control operation platform 38, a drilling machine 14 and a drill rod 12;
the test probe comprises a plugging device, a converter 6 and a communicating pipe 28, wherein the plugging device comprises a front plugging device 35, a middle plugging device 36 and a tail plugging device 37; the stopper comprises a water leakage pipe 3, a joint and a rubber bag 5, wherein the joint and the rubber bag 5 are connected with two ends of the water leakage pipe, the rubber bag 5 is wound on the periphery of the water leakage pipe 3, a blocking cavity 30 is formed between the rubber bag and the water leakage pipe 3, an external water source is injected into the blocking cavity 30 to expand the rubber bag 5, and a water injection cavity is formed between the rubber bag and a drill hole 31;
the drilling machine 14 is connected with the test probe through a drill rod 12 and is used for lengthening and propelling the test probe to a designated area, the drill rod 12 is a hollow rod, is in threaded connection and is detachable, and a high-pressure water source can be conveyed inside the drill rod;
the control operation platform 38 comprises a water discharge switch 15, a flow meter 16, a mechanical pressure gauge 17, a master control switch 18 and an electronic pressure gauge 19, and the control operation platform 38 is connected with the drilling machine 14 through a high-pressure hose 13 and is responsible for providing an external water source with specified pressure for the test probe;
the front plugging device 35 comprises a first connector 2, a water leakage pipe 3, a second connector 4 and a rubber bag 5, wherein the first connector 2 and the second connector 4 are in threaded connection with the water leakage pipe 3, the rubber bag 5 is wound outside the water leakage pipe 3 and fixed outside the first connector 2 and the second connector 4 through a fastening ring 24 to form a plugging cavity 30 with the water leakage pipe 3;
the outer end of the first connector 2 is in threaded connection with a guide head 1, and the guide head 1 plays a role in guiding a test probe to smoothly slide in the drill hole 31;
the middle stopper 36 comprises a joint II 4, a water leakage pipe 3, a joint III 7 and a rubber bag 5, and the rubber bag 5 is fixed outside the joint II 4 and the joint III 7 through a fastening ring 24;
the tail plugging device 37 comprises two connectors III 7, a water leakage pipe 3 and a rubber bag 5, wherein the rubber bag 5 is fixed between the two connectors III 7 through a fastening ring 24;
the outer part of the joint III is in threaded connection with a circular baffle 11, and the diameter of the circular baffle 11 is larger than that of the rubber bag 5, so that the rubber bag 5 is prevented from falling off; the circle center baffle 11 is in threaded connection and can be disassembled, so that the rubber bag 5 can be conveniently replaced;
a first water injection cavity 29 and a second water injection cavity 34 are respectively formed between the front plugging device 35, the middle plugging device 36 and the tail plugging device 37 and the drill hole 31;
the converter 6 comprises a base body, a conversion body 10, a return spring 9 and an adjusting screw 8, and the converter 6 converts a high-pressure water source in the communicating pipe 28 into a low-pressure water source and conveys the low-pressure water source to the first water injection cavity 29 and the second water injection cavity 34;
the converter 6 is provided with a central through hole 32 and four peripheral through holes 33, and the four peripheral through holes 33 are symmetrically distributed around the central through hole 32;
the aperture of the left end of the central through hole 32 is smaller than that of the right end, and the side wall of each peripheral through hole 33 is correspondingly provided with a side leakage hole 25;
the conversion body 10, the reset spring 9 and the adjusting screw 8 are sequentially arranged in the peripheral through hole 33, threads are arranged on the inner wall of the left side of the peripheral through hole 33 and matched with the adjusting screw 8, so that the adjusting screw 8 rotates in the peripheral through hole 33, and the reset spring 9 is compressed to control the opening pressure of the conversion body 10;
the side wall of the adjusting screw 8 is provided with a hexagonal through hole 21, so that the adjusting screw 8 can be rotated conveniently, and the water pressure of the first water injection cavity 29 and the second water injection cavity 34 can be fed back conveniently, and the left end surface of the conversion body 10 can be adjusted conveniently;
the conical conversion body 10 is a cylinder with unequal diameters, the diameter of the left end surface of the conical conversion body is larger than that of the right end surface of the conical conversion body, a sealing conical surface 26 is formed at the transition position of the cylinder with unequal diameters and is matched with the sealing conical surface 26 on the inner wall of the peripheral through hole 33, and the sealing conical surface 26 forms an angle of 30 degrees;
an L-shaped water through hole 23 is formed in the conical conversion body 10, an annular water tank 22 is formed on the cylindrical outer surface close to the left end face of the conical conversion body 10, and the water through hole 23 is communicated with the annular water tank 22; when the external water source pushes the conical conversion body 10 to move leftwards, the annular water tank 22 is communicated with the side leakage hole 20, so that the external water source enters the first water injection cavity 29 or the second water injection cavity 34;
the working principle of the converter 6 is as follows:
(1) when the tapered transition body 10 satisfies PLeft side ofSLeft side of+kx≤PRight sideSRight sideWhen the water is injected, the conical conversion body 10 moves leftwards, the annular water tank 22 is communicated with the side leakage hole 20, and the first water injection cavity 29 or the second water injection cavity is injectedThe water cavity 34 is used for water injection observation;
(2) when the tapered transition body 10 satisfies PLeft side ofSLeft side of+kx≥PRight sideSRight sideWhen the water is injected into the water injection cavity, the conical conversion body 10 moves rightwards, the annular water tank 22 is sealed by the inner wall of the peripheral through hole 33, and water supply to the water injection cavity is stopped;
(3) if PRight sideToo large to prevent PRight sideWhen the inner wall of the drilling hole 31 of the water injection cavity part is damaged by extreme water pressure, the conical conversion body 10 moves leftwards until the annular water tank 22 moves to the left end of the side leakage hole 20 to form a secondary sealing effect with the inner wall of the peripheral through hole 33;
wherein, PLeft side ofObserving the water source pressure for the first or second water injection cavity, wherein the water source pressure is about 0.5MPa generally; pRight sideThe pressure of the external water supply is generally about 1.5MPa, SLeft side ofIs the water passing area, S, of the left end surface of the conical conversion bodyRight sideThe water passing area of the right end face of the conical conversion body, k is the elastic coefficient of the return spring, and x is the compression amount;
the control operation platform 38 comprises a water drain switch 15, a flow meter 16, a first pressure meter 17, a master control switch 18 and a second pressure meter 19, wherein the water drain switch 15 is responsible for releasing pressure water in the test probe, so that the rubber bag 5 is separated from the drill hole 31, and the drill 14 can conveniently push the test probe; the master control switch 18 is responsible for stopping supplying external water sources, the flow meter 16 is responsible for detecting real-time water quantity input to the test probe by the external water sources, the first pressure meter 17 is a mechanical meter, the second pressure meter 19 is an electronic meter, the readings of the first pressure meter and the second pressure meter are compared and checked with each other, and if the readings are approximately equal, the pressure is effective;
a rock mass loosening ring testing method based on a drilling water pressing effect specifically comprises the following steps:
(1) drilling construction: according to construction requirements, 3-5 drill holes with different directions and inclination angles a are constructed in the region of the rock mass 27 to be measured by using the drilling machine 14, the diameter of each drill hole 31 is 89mm, the length of each drill hole is about 70m, and chips in the drill holes 31 are cleaned;
(2) installing equipment: mounting each part of the test probe, sequentially connecting a drilling machine 14, a drill rod 12, a high-pressure hose 13 and a control operation table 38, and then transferring the test probe to the initial position of the drill hole 31 by using the drilling machine 14;
(3) and (3) sealing and checking: closing a water drain switch 15 of a control operation console 38, opening a master control switch 18, providing detection water pressure for a test probe, carrying out plugging tightness test on the rubber bag 5, if no obvious water leakage phenomenon exists, carrying out the next step of operation, otherwise, returning to the operation of the step (2), and checking the connection and installation conditions of each part until the connection and installation conditions are qualified;
(4) carrying out a pressurized water test: after the sealing test is qualified, performing a water pressing test to enable the test probe to be in an initial position, re-opening the master switch 18 on the control operation platform 38 and closing the water discharging switch 15 to provide a high-pressure water source for the test probe, entering the plugging cavity 30 through the communicating pipe 28 and the water leakage pipe 3, expanding the rubber bags 5 of the front plugging device 35, the middle plugging device 36 and the tail plugging device 37 to form a first water injection cavity 29 and a second water injection cavity 34 with the drill hole 31 respectively, adjusting the pressure of the external water source to gradually increase to 1.5MPa, starting the converter 6 of the pressure of the first water injection cavity 29 at the moment, injecting water into the first water injection cavity 29, and recording the indication Q of the flow meter when the flow meter is stable at the moment after the indication number of the flow meter is stable at the momenti1Continuing to increase the pressure of the external water source to 1.7MPa, at the moment, closing the converter 6 of the first water injection cavity 29 due to the pressure increase, stopping supplying water to the first water injection cavity 29, opening the converter 6 of the second water injection cavity 34, injecting water into the second water injection cavity 34, and after the flow rate indication number is stable, recording the indication number Q of the flow rate meter at the stable momenti2And recording the detection distance Li1And Li2；
(5) Pressure relief and propulsion: closing the master control switch 18, opening the water drain switch 15, releasing the pressure of the blocking cavity 30, closing the water drain switch 15 after the rubber bag 5 is separated from the drill hole 31, taking another drill rod 12 to lengthen the test probe, propelling the test probe to the next detection area by using the drill 14, and repeating the operation of the step (4) until the full length of the drill hole is detected;
(6) calculating and analyzing: respectively drawing different borehole inflow distribution maps according to the length of the borehole 31 and the corresponding water leakage of the observation hole section, analyzing the fracture development characteristics and permeability characteristics of different positions in the borehole length range, and further combining the borehole inclination angle a of different directions and the accumulated continuous water leakage section length (namely the water leakage mutation zero point))Ln1+Ln2And (n is 1+2+. and k), calculating the damage range of the rock mass with different spatial ranges.
Parts which are not described in the invention can be realized by adopting or referring to the prior art.
Although terms such as tapered converter, etc. are used more often herein, the possibility of using other terms is not excluded, and those skilled in the art should make simple substitutions to these terms in light of the present disclosure and fall within the scope of the present disclosure.

Claims (10)

1.一种基于钻孔压水作用的岩体松动圈测试方法，其特征在于，所用的基于钻孔压水作用的岩体松动圈测试仪包括测试探头、控制操作台(38)、钻机(14)和钻杆(12)；1. a method for testing the looseness circle of rock mass based on the effect of borehole water pressure, it is characterized in that, the used rock mass looseness circle tester based on the effect of borehole water pressurization comprises a test probe, a control console (38), a drilling rig ( 14) and drill pipe (12); 所述的测试探头包括封堵器、转换器(6)和连通管(28)，封堵器包括前部封堵器(35)、中部封堵器(36)、尾部封堵器(37)；封堵器包括漏水管(3)、连接在漏水管两端的接头和橡胶囊(5)，橡胶囊(5)包绕在漏水管(3)外围，与漏水管(3)之间形成封堵空腔(30)，外界水源通过漏水管(3)中的漏水孔(25)注入封堵空腔(30)起胀橡胶囊(5)，与钻孔(31)形成注水空腔；The test probe includes an occluder, a converter (6) and a communication pipe (28), and the occluder includes a front occluder (35), a middle occluder (36), and a tail occluder (37) The occluder comprises a leaking pipe (3), a joint connected to both ends of the leaking pipe and a rubber bladder (5), the rubber bladder (5) is wrapped around the periphery of the leaking pipe (3) and forms a seal with the leaking pipe (3). The cavity (30) is plugged, and the external water source is injected into the plugging cavity (30) through the water leakage hole (25) in the water leakage pipe (3) to inflate the rubber bag (5), forming a water injection cavity with the bore hole (31); 所述的钻机(14)通过钻杆(12)与测试探头相连接，用以接长和推进测试探头至指定区域，钻杆(12)为空心杆，呈螺纹连接，可拆卸，其内部可输送高压水源；The drilling rig (14) is connected with the test probe through the drill rod (12), and is used to extend and advance the test probe to the designated area. The drill rod (12) is a hollow rod, which is threaded and can be disassembled. Conveying high-pressure water sources; 所述的控制操作台(38)包括放水开关(15)、流量表(16)、压力表一(17)、总控开关(18)和压力表二(19)，控制操作台(38)通过高压软管(13)与钻机(14)连接，负责向测试探头提供指定压力的外界水源；The control console (38) includes a water discharge switch (15), a flow meter (16), a pressure gauge (17), a master control switch (18) and a second pressure gauge (19), and the control console (38) passes through the control console (38). The high-pressure hose (13) is connected to the drilling rig (14), and is responsible for supplying an external water source with a specified pressure to the test probe; 所述的前部封堵器(35)、中部封堵器(36)、尾部封堵器(37)与钻孔(31)之间分别形成一号注水空腔(29)和二号注水空腔(34)；A No. 1 water injection cavity (29) and a No. 2 water injection cavity are respectively formed between the front plug (35), the middle plug (36), the tail plug (37) and the bore hole (31). cavity (34); 所述的前部封堵器(35)和中部封堵器(36)左边各螺纹连接转换器(6)，转换器(6)包括基体、锥形转换体(10)、复位弹簧(9)和调节螺丝(8)，转换器(6)将连通管(28)中的高压水源转换至低压水源输送至一号注水空腔(29)和二号注水空腔(34)内；The front occluder (35) and the middle occluder (36) are each threadedly connected to the converter (6) on the left side, and the converter (6) includes a base body, a conical converter (10), and a return spring (9) and the adjusting screw (8), the converter (6) converts the high-pressure water source in the communication pipe (28) to the low-pressure water source and sends it to the No. 1 water injection cavity (29) and the No. 2 water injection cavity (34); 所述的转换器(6)开有一个中心通孔(32)和四个周边通孔(33)，四个周边通孔(33)对称分布于中心通孔(32)周围；The converter (6) is provided with a central through hole (32) and four peripheral through holes (33), and the four peripheral through holes (33) are symmetrically distributed around the central through hole (32); 所述的中心通孔(32)左端孔径小于右端孔径，每个周边通孔(33)侧壁对应开有侧漏孔(25)；The diameter of the left end of the central through hole (32) is smaller than that of the right end, and a side leakage hole (25) is correspondingly opened on the side wall of each peripheral through hole (33); 所述的周边通孔(33)内依次安装有锥形转换体(10)、复位弹簧(9)和调节螺丝(8)，周边通孔(33)左侧内壁设置螺纹，与调节螺丝(8)相配合，使调节螺丝(8)在周边通孔(33)内旋转，压缩复位弹簧(9)，以控制锥形转换体(10)的开启压力；A conical converter (10), a return spring (9) and an adjusting screw (8) are sequentially installed in the peripheral through hole (33), and a thread is provided on the left inner wall of the peripheral through hole (33), which is connected with the adjusting screw (8). ), make the adjusting screw (8) rotate in the peripheral through hole (33), and compress the return spring (9) to control the opening pressure of the conical conversion body (10); 所述的调节螺丝(8)侧壁开有六角通孔(21)，便于旋转调节螺丝(8)，并反馈一号注水空腔(29)和二号注水空腔(34)水压，从而作用于锥形转换体(10)左端面；The side wall of the adjusting screw (8) is provided with a hexagonal through hole (21), which is convenient for rotating the adjusting screw (8) and feeding back the water pressure of the No. 1 water injection cavity (29) and the No. 2 water injection cavity (34), thereby Act on the left end face of the conical conversion body (10); 所述的锥形转换体(10)呈不等直径圆柱体，其左端面直径大于右端面直径，在不等直径圆柱过渡处即为密封锥面(26)，与周边通孔(33)内壁相吻合，密封锥面(26)呈30°角；The conical conversion body (10) is in the form of a cylinder of unequal diameter, and the diameter of its left end face is larger than the diameter of the right end face. match, the sealing cone surface (26) is at an angle of 30°; 所述的锥形转换体(10)内开有“L”形通水孔(23)，在靠近锥形转换体(10)左端面的圆柱形外表面开有环形水槽(22)，通水孔(23)与环形水槽(22)相连通；当外界水源推动锥形转换体(10)向左移动时，环形水槽(22)与侧漏孔(20)相连通，使外界水源进入一号注水空腔(29)或二号注水空腔(34)内；An "L"-shaped water passage hole (23) is opened in the conical conversion body (10), and an annular water groove (22) is opened on the cylindrical outer surface close to the left end face of the conical conversion body (10). The hole (23) is communicated with the annular water trough (22); when the external water source pushes the conical conversion body (10) to move to the left, the annular water trough (22) is communicated with the side leakage hole (20), so that the external water source enters No. 1 In the water injection cavity (29) or the No. 2 water injection cavity (34); 所述的转换器(6)工作原理：The working principle of the converter (6): (1)当锥形转换体(10)满足P左S左+kx≤P右S右时，则锥形转换体(10)向左移动，环形水槽(22)与侧漏孔(20)连通，对一号注水空腔(29)或二号注水空腔(34)进行注水观测；(1) When the conical conversion body (10) satisfies P left S left + kx≤P right S right , the conical conversion body (10) moves to the left, and the annular water tank (22) communicates with the side leakage hole (20) , perform water injection observation on No. 1 water injection cavity (29) or No. 2 water injection cavity (34); (2)当锥形转换体(10)满足P左S左+kx≥P右S右时，则锥形转换体(10)向右移动，环形水槽(22)被周边通孔(33)内壁封闭，停止向注水空腔供水；(2) When the conical conversion body (10) satisfies P left S left + kx≥P right S right , the conical conversion body (10) moves to the right, and the annular water tank (22) is surrounded by the inner wall of the peripheral through hole (33). closed, stop water supply to the water injection cavity; (3)若P右过大，为防止P右极端水压对注水空腔部分的钻孔(31)内壁造成破坏，则锥形转换体(10)向左移动，直至环形水槽(22)移动到侧漏孔(20)的左端，与周边通孔(33)内壁形成再次封闭作用；(3) If P right is too large, in order to prevent damage to the inner wall of the bore hole (31) of the water injection cavity by the extreme water pressure of P right , the conical conversion body (10) moves to the left until the annular water tank (22) moves To the left end of the side leakage hole (20), it forms a re-closing effect with the inner wall of the peripheral through hole (33); 其中，P左为一号或二号注水空腔观测水源压力，为0.5MPa；P右为外部供给水源压力，为1.5MPa，S左为锥形转换体(10)左端面过水面积，S右为锥形转换体(10)右端面过水面积，k为复位弹簧(9)的弹性系数，x为压缩量；所述的控制操作台(38)包括放水开关(15)、流量表(16)、压力表一(17)、总控开关(18)和压力表二(19)，放水开关(15)负责将测试探头内压力水释放，使橡胶囊(5)与钻孔(31)脱离接触，便于钻机(14)推进测试探头；总控开关(18)负责外界水源的停供，流量表(16)负责检测外界水源向测试探头输入实时水量，压力表一(17)为机械表，压力表二(19)为电子表，二者示数相互对比检验，若大致相当，则表明压力有效；Among them, the left of P is the observation water source pressure of the No. 1 or No. 2 water injection cavity, which is 0.5MPa; the right of P is the pressure of the external supply water source, which is 1.5MPa, the left of S is the water passing area of the left end face of the conical converter (10), and the S The right is the water passing area of the right end face of the conical conversion body (10), k is the elastic coefficient of the return spring (9), and x is the amount of compression; the control console (38) includes a water discharge switch (15), a flow meter ( 16), pressure gauge 1 (17), master control switch (18) and pressure gauge 2 (19), the water release switch (15) is responsible for releasing the pressure water in the test probe, so that the rubber bladder (5) and the drilled hole (31) Out of contact, it is convenient for the drilling rig (14) to push the test probe; the master control switch (18) is responsible for stopping the supply of the external water source, the flow meter (16) is responsible for detecting the external water source and inputting the real-time water volume to the test probe, and the pressure gauge one (17) is a mechanical meter , the pressure gauge 2 (19) is an electronic watch, and the indications of the two are compared with each other. If they are roughly the same, it indicates that the pressure is effective; 具体步骤如下：Specific steps are as follows: (1)施工钻孔(31)：按照施工要求，利用钻机(14)在待测岩体(27)区域施工不同方位和倾角a的钻孔3～5个，钻孔(31)直径为89mm，长度为70m，并清理钻孔(31)内的碎屑；(1) Construction drilling (31): According to the construction requirements, use the drilling rig (14) to construct 3 to 5 drilling holes with different orientations and inclination angles a in the area of the rock mass (27) to be tested, and the diameter of the drilling holes (31) is 89mm , the length is 70m, and the debris in the borehole (31) is cleaned; (2)安装设备：安装测试探头各部件，并依次连接钻机(14)、钻杆(12)、高压软管(13)及控制操作台(38)，然后利用钻机(14)将测试探头移送至钻孔(31)的初始位置；(2) Installation equipment: install the components of the test probe, connect the drilling rig (14), the drill pipe (12), the high-pressure hose (13) and the control console (38) in sequence, and then use the drilling rig (14) to transfer the test probe to the initial position of the drilled hole (31); (3)密封检验：关闭控制操作台(38)的放水开关(15)，打开总控开关(18)，向测试探头提供检测水压，对橡胶囊(5)进行封堵密封性检验，若无明显漏水现象，则进行下一步操作，否则返回步骤(2)操作，检查各部件的连接及安装情况，直至合格为止；(3) Sealing inspection: close the water release switch (15) of the control console (38), open the master control switch (18), provide the testing water pressure to the test probe, and perform the sealing and sealing inspection of the rubber bladder (5). If there is no obvious water leakage, proceed to the next step; otherwise, return to step (2) to check the connection and installation of each component until it is qualified; (4)进行压水试验：密封检验合格后，进行压水试验，使测试探头处于初始位置，重新打开控制操作台(38)上的总控开关(18)并关闭放水开关(15)，向测试探头提供高压水源，经连通管(28)、漏水管(3)进入封堵空腔(30)，起胀前部封堵器(35)、中部封堵器(36)和尾部封堵器(37)的橡胶囊(5)，分别与钻孔(31)形成一号注水空腔(29)和二号注水空腔(34)，调节外界水源压力逐渐升高至1.5MPa，此时仅一号注水空腔(29)压力的转换器(6)开启，向一号注水空腔(29)内注水，待流量表示数稳定后，记录此时稳定时流量表的示数Qi1，继续升高外界水源压力至1.7MPa，此时由于压力升高致使一号注水空腔(29)的转换器(6)关闭，停止向一号注水空腔(29)供水，而二号注水空腔(34的转换器(6)开启，向二号注水空腔(34)内注水，待流量表示数稳定后，记录此时稳定时流量表的示数Qi2，并记录探测距离Li1和Li2；(4) Carry out the water pressure test: after the sealing inspection is qualified, carry out the water pressure test to make the test probe in the initial position, re-open the master control switch (18) on the control console (38) and close the water discharge switch (15), The test probe provides a high-pressure water source, and enters the plugging cavity (30) through the connecting pipe (28) and the leaking water pipe (3), and inflates the front plug (35), the middle plug (36) and the tail plug The rubber bladder (5) of (37) forms the No. 1 water injection cavity (29) and the No. 2 water injection cavity (34) with the bore hole (31) respectively, and the pressure of the external water source is adjusted to gradually increase to 1.5MPa. The pressure converter (6) of the No. 1 water injection cavity (29) is turned on, and water is injected into the No. 1 water injection cavity (29). Raise the pressure of the external water source to 1.7MPa. At this time, due to the increase in pressure, the converter (6) of the No. 1 water injection cavity (29) is closed, and the water supply to the No. 1 water injection cavity (29) is stopped, while the No. 2 water injection cavity (The converter (6) of 34 is turned on, and water is injected into the No. 2 water injection cavity (34), and after the flow rate indication is stable, record the indication number Q i2 of the flow meter when it is stable at this time, and record the detection distance L i1 and L i2 ; (5)卸压推进：关闭总控开关(18)，打开放水开关(15)，释放封堵空腔(30)压力，待橡胶囊(5)与钻孔(31)脱离接触后，关闭放水开关(15)，取另一钻杆(12)接长测试探头，利用钻机(14)推进至下一探测区域，重复步骤(4)操作，直至测完钻孔全长为止；(5) Pressure relief advance: Turn off the master control switch (18), turn on the water drain switch (15), release the pressure of the blocked cavity (30), and close the water release after the rubber bladder (5) is out of contact with the bore hole (31). switch (15), take another drill pipe (12) to extend the test probe, use the drill (14) to advance to the next detection area, repeat the operation of step (4), until the full length of the borehole is measured; (6)计算分析：根据钻孔(31)长度及对应观测孔段漏水量，分别绘制不同钻孔内流量分布图，分析钻孔长度范围内不同位置的裂隙发育特征和渗透特性，进一步结合不同方位的钻孔倾角a和累计连续漏水段长度Ln1+Ln2，其中n＝1+2+....+k，计算得到不同空间范围岩体的破坏范围。(6) Calculation and analysis: According to the length of the borehole (31) and the amount of water leakage in the corresponding observation hole section, draw flow distribution maps in different boreholes respectively, analyze the development characteristics and permeability characteristics of fractures at different positions within the length of the borehole, and further combine different The azimuthal borehole inclination a and the cumulative length of the continuous leaking section L n1 +L n2 , where n=1+2+....+k, calculate the damage range of the rock mass in different spatial ranges. 2.根据权利要求1所述的基于钻孔压水作用的岩体松动圈测试方法，其特征在于，所述的前部封堵器(35)包括接头一(2)、漏水管(3)、接头二(4)和橡胶囊(5)，接头一(2)和接头二(4)与漏水管(3)呈螺纹连接，橡胶囊(5)包绕在漏水管(3)外部，通过紧固圈(24)固定在接头一(2)和接头二(4)的外部，与漏水管(3)间形成封堵空腔(30)；所述的接头一(2)外端螺纹连接引导头(1)，引导头(1)起导向作用，用以引导测试探头在钻孔(31)中平顺滑动。2. The method for testing the rock mass loose circle based on the action of borehole water pressure according to claim 1, wherein the front plug (35) comprises a joint one (2), a leaking pipe (3) , joint two (4) and rubber bladder (5), joint one (2) and joint two (4) are threadedly connected with the leaking pipe (3), the rubber bladder (5) is wrapped around the outside of the leaking pipe (3), The fastening ring (24) is fixed on the outside of the first joint (2) and the second joint (4), and forms a sealing cavity (30) with the leakage pipe (3); the outer end of the first joint (2) is threadedly connected A guide head (1), the guide head (1) plays a guiding role and is used to guide the test probe to slide smoothly in the bore hole (31). 3.根据权利要求1或2所述的基于钻孔压水作用的岩体松动圈测试方法，其特征在于，所述的中部封堵器(36)包括接头二(4)、漏水管(3)、接头三(7)和橡胶囊(5)，橡胶囊(5)通过紧固圈(24)固定在接头二(4)和接头三(7)的外部。3. The method for testing the rock mass looseness circle based on the action of borehole water pressure according to claim 1 or 2, wherein the middle blocker (36) comprises a joint two (4), a leaking pipe (3) ), the third joint (7) and the rubber bladder (5), and the rubber bladder (5) is fixed on the outside of the second joint (4) and the third joint (7) through the fastening ring (24). 4.根据权利要求1或2所述的基于钻孔压水作用的岩体松动圈测试方法，其特征在于，所述的尾部封堵器(37)由两个接头三(7)、漏水管(3)和橡胶囊(5)，橡胶囊(5)通过紧固圈(24)固定在两个接头三(7)之间。4. The method for testing a rock mass loose circle based on the action of borehole water pressure according to claim 1 or 2, wherein the tail plug (37) is composed of two joints (7), a leaking pipe (3) and the rubber bag (5), the rubber bag (5) is fixed between the two joints (7) by the fastening ring (24). 5.根据权利要求3所述的基于钻孔压水作用的岩体松动圈测试方法，其特征在于，所述的尾部封堵器(37)由两个接头三(7)、漏水管(3)和橡胶囊(5)，橡胶囊(5)通过紧固圈(24)固定在两个接头三(7)之间。5. The method for testing the loose ring of rock mass based on the action of borehole water pressure according to claim 3, wherein the tail plug (37) is composed of two joints three (7), a leaking pipe (3) ) and a rubber bag (5), the rubber bag (5) is fixed between the two joints (7) by a tightening ring (24). 6.根据权利要求4所述的基于钻孔压水作用的岩体松动圈测试方法，其特征在于，所述的接头三外部螺纹连接圆形挡板(11)，圆形挡板(11)直径较橡胶囊(5)直径大，阻止橡胶囊(5)脱落；圆形挡板(11)呈螺纹连接，可拆卸，便于与更换橡胶囊(5)。6. The method for testing the loose ring of rock mass based on the action of borehole water pressure according to claim 4, wherein the three external threads of the joint are connected to a circular baffle (11), and the circular baffle (11) The diameter is larger than that of the rubber bag (5), which prevents the rubber bag (5) from falling off; the circular baffle plate (11) is threadedly connected and can be disassembled to facilitate the replacement of the rubber bag (5). 7.根据权利要求5所述的基于钻孔压水作用的岩体松动圈测试方法，其特征在于，所述的接头三外部螺纹连接圆形挡板(11)，圆形挡板(11)直径较橡胶囊(5)直径大，阻止橡胶囊(5)脱落；圆形挡板(11)呈螺纹连接，可拆卸，便于与更换橡胶囊(5)。7. The method for testing the loose ring of rock mass based on the action of borehole water pressure according to claim 5, wherein the three external threads of the joint are connected to a circular baffle (11), and the circular baffle (11) The diameter is larger than that of the rubber bag (5), which prevents the rubber bag (5) from falling off; the circular baffle plate (11) is threadedly connected and can be disassembled to facilitate the replacement of the rubber bag (5). 8.根据权利要求1、2、6或7所述的基于钻孔压水作用的岩体松动圈测试方法，其特征在于，所述的注水空腔的数量，根据需求增加，设计方式相同。8 . The method for testing the looseness circle of rock mass based on the action of drilling water pressurization according to claim 1 , 2 , 6 or 7 , wherein the number of the water injection cavities is increased according to demand, and the design method is the same. 9.根据权利要求4所述的基于钻孔压水作用的岩体松动圈测试方法，其特征在于，所述的注水空腔的数量，根据需求增加，设计方式相同。9 . The method for testing the rock mass looseness circle based on the action of borehole water pressure according to claim 4 , wherein the number of the water injection cavities is increased according to the demand, and the design method is the same. 10 . 10.根据权利要求3所述的基于钻孔压水作用的岩体松动圈测试方法，其特征在于，所述的注水空腔的数量，根据需求增加，设计方式相同。10 . The method for testing the looseness circle of rock mass based on the action of borehole water pressurization according to claim 3 , wherein the number of the water injection cavities is increased according to demand, and the design methods are the same. 11 .
CN201810376008.6A 2018-04-20 2018-04-20 Rock mass loosening ring testing method based on drilling water pressing effect Expired - Fee Related CN108613909B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810376008.6A CN108613909B (en) 2018-04-20 2018-04-20 Rock mass loosening ring testing method based on drilling water pressing effect

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810376008.6A CN108613909B (en) 2018-04-20 2018-04-20 Rock mass loosening ring testing method based on drilling water pressing effect

Publications (2)

Publication Number Publication Date
CN108613909A CN108613909A (en) 2018-10-02
CN108613909B true CN108613909B (en) 2020-04-07

Family

ID=63660841

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810376008.6A Expired - Fee Related CN108613909B (en) 2018-04-20 2018-04-20 Rock mass loosening ring testing method based on drilling water pressing effect

Country Status (1)

Country Link
CN (1) CN108613909B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109975125A (en) * 2019-03-11 2019-07-05 山东科技大学 Pressurized water experimental equipment and method based on coal or rock loose circle detection
CN114910403A (en) * 2022-05-30 2022-08-16 山东科技大学 Variable cross-section water sealing device and method for detecting rock mass loosening ring
CN119102591B (en) * 2024-09-04 2025-09-23 中煤科工开采研究院有限公司 Measurement system and method for obtaining surrounding rock characteristics based on well logging technology

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10245998A (en) * 1997-03-05 1998-09-14 Shimizu Corp Concrete waterproofing method and two-stage drill used for it
CN104950346B (en) * 2015-06-25 2017-06-27 山东科技大学 Segmental test system for floor mining damage range
CN105525910B (en) * 2015-12-09 2018-05-08 山东科技大学 Multistage blocks both-end observation procedure
CN105372410B (en) * 2015-12-09 2017-03-01 山东科技大学 Double-end sealing leak detection combined geometry
CN207229060U (en) * 2017-10-13 2018-04-13 大连理工大学 A kind of rock body quality of mine drilling gas blocks extraction Intergration system

Also Published As

Publication number Publication date
CN108613909A (en) 2018-10-02

Similar Documents

Publication Publication Date Title
CN108643891B (en) A leak detection method for double-ended plugging of single-circuit overlying fissures
US20200165915A1 (en) Graded pressure drop type detection system and detection method of borehole cracks
US20200165887A1 (en) Graded pressure drop type multi stage water injection device and method based on fracture observation
CN105403930B (en) Country rock Mining failure scope sectionalization test system
CN108645774B (en) A single-circuit overlying rock fracture double-end plugging leak detection system
CN105422078B (en) Country rock Mining failure scope sectionalization test method
CN108590641B (en) Surrounding rock permeability multi-section type water injection visualizer
CN106769788B (en) A kind of rock and soil pressure water test device and test method
CN108613909B (en) Rock mass loosening ring testing method based on drilling water pressing effect
CN109975125A (en) Pressurized water experimental equipment and method based on coal or rock loose circle detection
CN108678737A (en) Become the infiltrative observation procedure of pressure adjustable rock cranny
CN205176296U (en) Destruction scope sectionalization test system is adopted to country rock
CN108845101B (en) It is classified buck borehole fissure detection system
CN108643901B (en) Observation method of multi-stage graded pressure reduction and water injection based on fracture observation
CN108444889B (en) Variable pressure adjustable rock fracture permeability testing device
CN108643899B (en) Segmentation observation method of mining failure zone on roof and floor of mine
CN108732075B (en) Rock mass permeability in-situ test method
CN108590569B (en) Integrated multi-segment observation system for borehole plugging and leak detection
CN208073472U (en) One kind being used for deep-well floor rock mining induced fissure detection device
CN206459936U (en) A kind of Rock And Soil packer permeability test device
CN108845373B (en) Detection method of borehole fissures with graded depressurization
CN108709841B (en) Rock mass permeability in-situ testing device
CN208155798U (en) Permeability of rock in-situ testing device
CN108643900B (en) Sectional Observation System for Mining Damage Zone of Mine Roof and Floor
CN211201932U (en) Drilling single-loop water-pressing control system based on overburden water flowing fractured zone detection

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
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: 20200407

Termination date: 20210420