WO2020258207A1 - 一种自带加载结构的快速旋转开启型高压岩石三轴压力室 - Google Patents

一种自带加载结构的快速旋转开启型高压岩石三轴压力室 Download PDF

Info

Publication number
WO2020258207A1
WO2020258207A1 PCT/CN2019/093514 CN2019093514W WO2020258207A1 WO 2020258207 A1 WO2020258207 A1 WO 2020258207A1 CN 2019093514 W CN2019093514 W CN 2019093514W WO 2020258207 A1 WO2020258207 A1 WO 2020258207A1
Authority
WO
WIPO (PCT)
Prior art keywords
pressure chamber
actuator
cylinder
pressure
rock sample
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.)
Ceased
Application number
PCT/CN2019/093514
Other languages
English (en)
French (fr)
Inventor
张希巍
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.)
Northeastern University China
Original Assignee
Northeastern University China
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 Northeastern University China filed Critical Northeastern University China
Priority to US16/961,900 priority Critical patent/US11320352B2/en
Publication of WO2020258207A1 publication Critical patent/WO2020258207A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/02—Details
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
    • G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
    • G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
    • G01N3/12—Pressure testing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0014—Type of force applied
    • G01N2203/0016—Tensile or compressive
    • G01N2203/0019—Compressive
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/003—Generation of the force
    • G01N2203/0042—Pneumatic or hydraulic means
    • G01N2203/0048—Hydraulic means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02—Details not specific for a particular testing method
    • G01N2203/025—Geometry of the test
    • G01N2203/0256—Triaxial, i.e. the forces being applied along three normal axes of the specimen

Definitions

  • the invention belongs to the technical field of indoor rock triaxial compression testing, and particularly relates to a fast-rotating open-type high-pressure rock triaxial pressure chamber with a self-loading structure.
  • Rock-like geological materials are different from metal materials. Their compressive strength is significantly affected by the confining pressure (also called lateral stress). Usually, a higher confining pressure is applied around the cylindrical rock sample, and the compressive strength of the rock sample will be reduced. There is a certain improvement. In order to obtain mechanical properties such as compressive strength and deformation of rocks under different confining pressure conditions, conventional rock triaxial testing machines are usually used as test equipment.
  • the rock conventional triaxial testing machine it is mainly composed of a loading frame and a pressure chamber.
  • the loading frame is responsible for applying large principal stress
  • the pressure chamber is responsible for applying confining pressure.
  • the equivalent confining pressure is applied to simulate different formation pressures, and then the load is applied by the loading frame until the rock sample is pressed to failure.
  • the pressure chamber is composed of an upper and lower part of the structure, and adopts the opening method of up and down movement, and the upper and lower parts of the pressure chamber are connected by high-strength bolts, which need to withstand the tension generated by the high pressure inside the pressure chamber, in order to apply axial
  • a metal force-transmitting rod with a sealed structure needs to be installed on the upper part of the pressure chamber.
  • the most classic rock conventional triaxial testing machines include the American MTS Model 815 and GCTS RTR-4000.
  • the conventional triaxial rock testing machine usually refers to the proposed method of rock uniaxial compression full stress-strain curve test proposed by the International Society of Rock Mechanics in 1999 (Draft ISRM Suggested Method for the complete stress-strain curve for intact rock in uniaxial compression), this method recommends 5MN/mm as the design standard for the stiffness of the loading frame.
  • the metal pressure chamber of the rock conventional triaxial testing machine adopts the up and down movement opening method to realize the installation and disassembly of the rock sample, it is necessary to manually complete the disassembly and assembly of 10-16 high-strength bolts with the help of a wrench.
  • the installation process is quite time-consuming and laborious, and the pre-tightening force of each high-strength bolt is not easy to guarantee. At the same time, it also greatly reduces the efficiency of conventional triaxial tests on rocks.
  • the present invention provides a fast-rotating open-type high-pressure rock triaxial pressure chamber with its own loading structure, which eliminates the loading frame in the traditional structural design, and ensures that the test capacity is not reduced. It saves 50%, which creates conditions for further improvement of structural rigidity, and is also conducive to the reduction of equipment manufacturing costs; the present invention abandons the traditional up and down movement opening method, and for the first time adopts the fast rotation opening method, eliminating the need for traditional disassembly.
  • the process of installing high-strength bolts can save 1 hour of installation and disassembly time of rock samples, which not only reduces the labor intensity of personnel, but also effectively improves the test efficiency.
  • the fast-rotating opening method also avoids the drop of hydraulic oil. Pollution of the surrounding environment.
  • a fast-rotating open-type high-pressure rock triaxial pressure chamber with a self-loading structure including a pressure chamber shell, a pressure chamber sealing limit sleeve, a thrust ball bearing, and an actuator
  • the cylinder barrel of the actuator, the actuator piston rod and the actuator sealing flange cover ;
  • the pressure chamber shell adopts a cylindrical cylindrical structure, and the pressure chamber shell is arranged vertically with the cylinder mouth facing downwards.
  • the outer circumference is provided with a flange edge; the thrust ball bearing is sleeved on the outside of the pressure chamber shell, the thrust ball bearing coincides with the central axis of the pressure chamber shell, and the lower bearing ring of the thrust ball bearing is connected to the lower end of the pressure chamber shell.
  • the flange edges at the position are fixedly connected; the pressure chamber sealing limit sleeve is sleeved on the outside of the pressure chamber housing, the pressure chamber sealing limit sleeve coincides with the central axis of the pressure chamber housing, and the pressure chamber sealing limit sleeve
  • the cylinder is located above the thrust ball bearing, the bottom end of the pressure chamber sealing limit sleeve is fixedly connected with the upper bearing ring of the thrust ball bearing, and a rotation gap is left between the pressure chamber sealing limit sleeve and the pressure chamber shell;
  • the lateral cylinder wall of the pressure chamber shell is respectively provided with the first rock sample loading hole and the second rock sample loading hole, the size, shape and height of the first rock sample loading hole and the second rock sample loading hole
  • the positions are all the same, and the first rock sample loading and taking hole and the second rock sample loading and taking hole are arranged directly opposite; a first plugging block is arranged in the first rock sample loading and taking hole, and the first plugging block is A sealed sliding
  • a third rock sample loading and taking hole is opened on the wall of the pressure chamber sealing limit sleeve, the third rock sample loading and taking hole is the same as the first rock sample loading and taking hole and the second rock sample loading and taking hole
  • the holes are at the same height, and the diameter of the third rock sample loading and taking hole is larger than that of the first rock sample loading and taking hole and the second rock sample loading and taking hole;
  • the actuator cylinder adopts a cylindrical structure, and the actuator cylinder The cylinder is vertically arranged with the cylinder mouth facing upwards. A flange edge is provided on the outer circumference of the upper cylinder mouth of the actuator cylinder.
  • the upper cylinder mouth of the actuator cylinder is opposite to the lower cylinder mouth of the pressure chamber housing, and the actuator cylinder
  • the flange edge of the upper cylinder mouth and the flange edge of the lower cylinder mouth of the pressure chamber shell are fixedly connected by high-strength bolts.
  • the pressure chamber shell and the actuator cylinder together form the main body of the reaction force loaded by the large principal stress, the actuator
  • the cylinder barrel coincides with the central axis of the pressure chamber housing;
  • the actuator piston rod is arranged in the actuator cylinder, the actuator piston rod coincides with the central axis of the actuator cylinder, and the actuator piston
  • the rod body in the middle of the rod is in a sealing sliding fit with the actuator cylinder;
  • the actuator sealing flange cover is fixed on the upper end of the actuator cylinder through high-strength bolts, and the actuator sealing flange cover and the actuator cylinder
  • the upper end of the cylinder is sealed and matched, and a piston rod insertion hole is opened in the center of the actuator sealing flange cover, and the upper rod body of the actuator piston rod passes through the piston rod insertion hole of the actuator sealing flange cover Extending to the inside of the pressure chamber shell, the upper part of the actuator piston rod is in a sealing sliding fit with the actuator sealing flange cover.
  • a confining pressure oil port is opened on the bottom cylinder of the pressure chamber housing, a pressure balance cavity is opened on the bottom cylinder of the actuator cylinder, and the actuator cylinder below the pressure balance cavity is opened
  • the pressure balance oil port communicates with the confining pressure oil port; the lower rod body of the actuator piston rod extends into the pressure balance cavity, and the lower rod body of the actuator piston rod is sealed and slidingly fitted with the pressure balance cavity.
  • the internal annular space of the actuator cylinder below the middle rod body of the actuator piston rod is a stress loading cavity, and the actuator cylinder at the corresponding position of the stress loading cavity is provided with a stress loading oil port; the actuator piston rod
  • the internal annular space of the actuator cylinder above the middle rod is a stress unloading cavity, and the actuator cylinder at the corresponding position of the stress unloading cavity is provided with a stress unloading oil port.
  • a piston displacement monitoring rod is sealed and slidingly mounted on the actuator cylinder tube below the pressure balance chamber.
  • the upper end of the piston displacement monitoring rod is fixedly connected to the bottom end of the actuator piston rod, and the lower end of the piston displacement monitoring rod extends to the actuator
  • an adapter rod is fixedly connected to the lower end of the piston displacement monitoring rod, and a displacement sensor is connected between the adapter rod and the actuator cylinder.
  • An oil leakage monitoring port is opened on the actuator cylinder at the corresponding position of the actuator sealing flange cover.
  • a rock sample support frame is fixed on the top of the piston rod of the actuator.
  • the rock sample support frame is located inside the pressure chamber shell.
  • the rock sample support frame is used to place the rock sample.
  • the pressure chamber shell directly above the rock sample support frame A load cell is fixed and suspended on the wall of the top inner cylinder.
  • An exhaust port is provided on the top cylinder of the pressure chamber shell.
  • the fast-rotating open-type high-pressure rock triaxial pressure chamber with its own loading structure of the present invention eliminates the loading frame in the traditional structural design. Under the premise of ensuring that the test capability is not reduced, the headroom is saved by 50%, which improves the structural rigidity. The improvement creates conditions and is also conducive to the reduction of equipment manufacturing costs; the present invention abandons the traditional up-and-down movement opening method, and uses the fast-rotating opening method for the first time, eliminating the need for the traditional process of disassembling and installing high-strength bolts, and enables rock testing This saves 1 hour of installation and disassembly time, which not only reduces the labor intensity of personnel, but also effectively improves the test efficiency. At the same time, the fast-rotating opening method also avoids the surrounding environmental pollution caused by the dripping of hydraulic oil.
  • Fig. 1 is a schematic structural diagram of a fast-rotating open-type high-pressure rock triaxial pressure chamber with a loading structure of the present invention
  • 1-pressure chamber housing 2-pressure chamber sealing limit sleeve, 3-thrust ball bearing, 4-actuator cylinder, 5-actuator piston rod, 6-actuator sealing flange Cover, 7-The first rock sample loading and taking hole, 8-The second rock sample loading and taking hole, 9-The first plugging block, 10-The second plugging block, 11-The third rock sample loading and taking hole, 12- Confining pressure port, 13-pressure balance cavity, 14-pressure balance port, 15-stress loading cavity, 16-stress loading port, 17-stress unloading cavity, 18-stress unloading port, 19-piston displacement monitoring rod , 20-transfer rod, 21-displacement sensor, 22-oil leakage monitoring port, 23-rock sample support frame, 24-rock sample, 25-force sensor, 26-exhaust port.
  • a fast-rotating open-type high-pressure rock triaxial pressure chamber with its own loading structure includes a pressure chamber housing 1, a pressure chamber sealing limit sleeve 2, a thrust ball bearing 3, and an actuator cylinder. 4.
  • the outer circumference of the lower end cylinder mouth is provided with a flange edge; the thrust ball bearing 3 is sleeved on the outside of the pressure chamber housing 1, the thrust ball bearing 3 coincides with the central axis of the pressure chamber housing 1, and the lower bearing of the thrust ball bearing 3
  • the ring is fixedly connected with the flange edge at the lower end of the pressure chamber shell 1; the pressure chamber sealing and limiting sleeve 2 is sleeved on the outside of the pressure chamber shell 1, and the pressure chamber sealing and limiting sleeve 2 is connected to the pressure chamber shell
  • the central axes of 1 coincide, the pressure chamber sealing limit sleeve 2 is located above the thrust ball bearing 3, and the bottom end of the pressure chamber sealing limit sleeve 2 is fixedly connected with the upper bearing ring of the thrust ball bearing 3, and the pressure chamber is sealed and limited.
  • a first rock sample loading and taking hole 7 and a second rock sample loading and taking hole 8 are respectively opened on the lateral cylinder wall of the pressure chamber shell 1 ,
  • the size, shape and height position of the first rock sample loading and taking hole 7 and the second rock sample loading and taking hole 8 are the same, and the first rock sample loading and taking hole 7 and the second rock sample loading and taking hole 8 are arranged directly opposite;
  • a first plugging block 9 is provided in the first rock sample loading and taking hole 7, and the first plugging block 9 and the first rock sample loading and taking hole 7 adopt a sealed sliding fit;
  • a second plugging block 10 is arranged in the sample loading and taking hole 8.
  • the second plugging block 10 and the second rock sample loading and taking hole 8 adopt a sealed sliding fit; the pressure chamber seals the limit sleeve 2
  • a third rock sample loading and taking hole 11 is opened on the wall of the cylinder.
  • the third rock sample loading and taking hole 11 is at the same height as the first rock sample loading and taking hole 7 and the second rock sample loading and taking hole 8.
  • the aperture of the hole 11 is larger than the apertures of the first rock sample loading and taking hole 7 and the second rock sample loading and taking hole 8;
  • the actuator cylinder 4 adopts a cylindrical cylindrical structure, and the actuator cylinder 4 is vertically arranged with the mouth of the cylinder.
  • a flange edge is provided on the outer circumference of the upper end of the actuator cylinder 4, the upper end of the actuator cylinder 4 is opposite to the lower end of the pressure chamber housing 1, and the upper end of the actuator cylinder 4
  • the flange edge of the pressure chamber shell 1 and the flange edge of the lower end of the cylinder mouth are fixedly connected by high-strength bolts.
  • the pressure chamber shell 1 and the actuator cylinder 4 together form the main body of the reaction force loaded by the large principal stress.
  • the central axis of the actuator cylinder 4 and the pressure chamber housing 1 coincide; the actuator piston rod 5 is arranged in the actuator cylinder 4, and the central axis of the actuator piston rod 5 and the actuator cylinder 4
  • the middle part of the actuator piston rod 5 is in a sealing and sliding fit with the actuator cylinder 4;
  • the actuator sealing flange cover 6 is fixed on the upper end of the actuator cylinder 4 by high-strength bolts, and works
  • the actuator sealing flange cover 6 is in a sealing fit with the upper end of the actuator cylinder 4, a piston rod insertion hole is opened in the center of the actuator sealing flange cover 6, and the upper rod body of the actuator piston rod 5
  • the piston rod insertion hole passing through the actuator seal flange cover 6 extends to the pressure chamber housing 1 Inside, the upper rod body of the actuator piston rod 5 is in a sealing sliding fit with the actuator sealing flange cover 6.
  • a confining pressure oil port 12 is opened on the bottom cylinder of the pressure chamber housing 1, and a pressure balance chamber 13 is opened on the bottom cylinder of the actuator cylinder 4.
  • the actuator below the pressure balance chamber 13 The cylinder 4 is provided with a pressure balance oil port 14, which communicates with the confining pressure oil port 12; the lower part of the actuator piston rod 5 extends into the pressure balance chamber 13, and the lower part of the actuator piston rod 5
  • the rod body is sealed and slidingly fitted with the pressure balance cavity 13.
  • the communication state of the pressure balance oil port 14 and the confining pressure oil port 12 can be avoided
  • the actuator piston rod 5 is not disturbed by the interference of the confining pressure, thereby ensuring that the actuator piston rod 5 is always in a balanced state.
  • the internal annular space of the actuator cylinder 4 below the middle rod body of the actuator piston rod 5 is a stress loading chamber 15, and the actuator cylinder 4 at the corresponding position of the stress loading chamber 15 is provided with a stress loading oil port 16;
  • the internal annular space of the actuator cylinder 4 above the central rod body of the actuator piston rod 5 is a stress unloading cavity 17, and the actuator cylinder 4 corresponding to the stress unloading cavity 16 is provided with a stress unloading oil port 18.
  • a piston displacement monitoring rod 19 is sealed and slidingly mounted on the actuator cylinder 4 under the pressure balance chamber 13, the upper end of the piston displacement monitoring rod 19 is fixedly connected to the bottom end of the actuator piston rod 5, and the piston displacement monitoring rod 19 The lower end extends to the outside of the actuator cylinder 4, a transfer support rod 20 is fixedly connected to the lower end of the piston displacement monitoring rod 19, and a displacement sensor 21 is connected between the transfer support rod 20 and the actuator cylinder 4.
  • An oil leakage monitoring port 22 is opened on the actuator cylinder 4 at the corresponding position of the actuator sealing flange cover 6 to ensure that the hydraulic oil in the inner cavity of the pressure chamber housing 1 does not interact with the actuator cylinder 4
  • the hydraulic oil in the inner cavity produces a series cavity.
  • a rock sample support frame 23 is fixed on the top of the actuator piston rod 5.
  • the rock sample support frame 23 is located inside the pressure chamber shell 1.
  • the rock sample support frame 23 is used to place the rock sample 24, and the rock sample support frame 23
  • a load cell 25 is fixed and suspended on the inner cylinder wall at the top of the pressure chamber housing 1 directly above.
  • An exhaust port 26 is provided on the top cylinder of the pressure chamber housing 1.
  • the size of the rock sample 24 is a cylindrical sample with a diameter of 50 mm and a height of 100 mm; the maximum confining pressure inside the pressure chamber shell 1 is 100 MPa, and the maximum axial pressure is 1000 kN; the first rock sample mounting hole 7 , The second rock sample loading and taking hole 8, the third rock sample loading and taking hole 11, the first plugging block 9 and the second plugging block 10 are all round or oval; in the first plugging block 9 and the second block The outer surface of the plugging block 10 is provided with threaded holes.
  • the threaded holes are used to assist the disassembly and assembly of the first plugging block 9 and the second plugging block 10; the pressure chamber housing 1, the pressure chamber sealing limit sleeve 2 and the work
  • the actuator cylinder 4 is manufactured by alloy steel forging and heat treatment process to ensure that the loading structure has sufficient rigidity; by connecting the auxiliary support structure to the actuator cylinder 4, the pressure chamber is fixedly placed on the test bench as a whole.
  • the prepared rock sample 24 is sealed, and the sealed rock sample 24 is put aside for subsequent tests, and then the press is adjusted to the initial state before the test.
  • the third rock sample loading and taking hole 11 of the pressure chamber sealing limit sleeve 2 is directly opposite to the first rock sample loading and taking hole 7 of the pressure chamber shell 1, and the first rock sample loading and taking hole 7 is not installed with the first seal
  • the second plugging block 10 has been installed in the second rock sample loading and taking hole 8, and the actuator piston rod 5 is in the lower limit position. It should be noted that the functions of the first rock sample loading and taking hole 7 and the second rock sample loading and taking hole 8 are exactly the same. You can only decide which rock sample loading and taking hole to use according to your needs. In addition, the reason why the two are designed are exactly the same.
  • the rock sample is installed and taken out to better ensure the symmetrical force state of the pressure chamber shell 1.
  • the sealed and processed rock sample 24 is placed on the rock sample support frame on the top of the actuator piston rod 5 through the third rock sample loading and taking hole 11 and the first rock sample loading and taking hole 7 in sequence Then put the first plugging block 9 back into the first rock sample loading and taking hole 7, and then rotate the pressure chamber sealing limit sleeve 2 by 90°. At this time, the first plugging block 9 is installed. The rock sample loading and taking hole 7 is enclosed in the pressure chamber sealing limit sleeve 2, and the rock sample 24 is installed at this time.
  • the confining pressure application step is started.
  • the low pressure oil pump is used to fill the inner cavity of the pressure chamber housing 1 through the confining pressure oil port 12.
  • the exhaust port 26 is open during the oil filling process. State, as the hydraulic oil continues to be filled, the air in the inner cavity of the pressure chamber housing 1 will gradually be discharged until the exhaust port 26 flows out of the hydraulic oil to complete the oil filling; next, first close the exhaust port 26, and then Switch the low-pressure oil pump to the high-pressure oil pump, and use the high-pressure oil pump to complete the confining pressure loading.
  • a large principal stress loading step is opened.
  • the stress loading cavity 15 of the actuator cylinder 4 is filled with oil through the stress loading oil port 16 to drive the actuator piston rod 5 to move upward, and Drive the rock sample 24 to move up synchronously until the rock sample 24 is in contact with the load cell 25, and then according to the full failure process test requirements of the rock sample 24, the computer servo control loading is started until the rock sample 24 fails.

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

一种自带加载结构的快速旋转开启型高压岩石三轴压力室，取消了加载框架，压力室壳体（1）与作动器缸筒（4）之间通过高强螺栓固连形成大主应力加载的反力主体，净空节省了50％，在试验能力不降低的前提下，为结构刚度进一步提升创造了条件；摒弃了上下运动的开启方式，在压力室壳体（1）外套装有压力室密封限位套筒（2），压力室密封限位套筒（2）可转动，在压力室壳体（1）和压力室密封限位套筒（2）的筒壁上均有岩样装取孔（7，8，11），压力室壳体（1）上的岩样装取孔（7，8）内设有可拆卸的封堵块（9，10），实现了快速旋转的开启方式，省去了传统需要拆装高强螺栓的过程，可使岩石试样（24）的安装和拆卸时间节省1小时，既降低了人员的劳动强度，也提高了试验效率，同时快速旋转的开启方式也避免了因液压油滴落造成的周围环境污染问题。

Description

一种自带加载结构的快速旋转开启型高压岩石三轴压力室 技术领域
本发明属于室内岩石三轴压缩试验技术领域，特别是涉及一种自带加载结构的快速旋转开启型高压岩石三轴压力室。
背景技术
岩石类地质材料不同于金属材料，其压缩强度受围压(也称侧向应力)影响显著，通常在圆柱形岩石试样周围施加一个更高的围压，该岩石试样的压缩强度就会有一定的提高，为了获得不同围压条件下岩石的压缩强度和变形等力学特性，通常采用岩石常规三轴试验机作为试验设备。
尽管深部地下岩体都不同程度的承受着三个正交方向不等的地应力，即大主应力、中主应力及小主应力，但是，出于试验机设计难易程度和试验效率方面的考虑，绝大多数的岩石力学试验中都会采用圆柱形的岩石试样，同时利用岩石常规三轴试验机开展不同围压(中主应力和小主应力相等)条件下的常规三轴压缩试验。
对于岩石常规三轴试验机来说，其主要由加载框架和压力室两部分组成，加载框架负责施加大主应力，而压力室负责施加围压，当密封好的圆柱形试样放置到压力室后，先施加等效围压以模拟不同的地层压力，然后由加载框架施加荷载，直到将岩石试样压至破坏失效。其中，压力室由上下两部分结构组成，并采用采用上下运动的开启方式，且压力室的上下两部分结构采用高强螺栓进行连接，其需要承受压力室内部高压产生的拉力，为了施加轴向的大主应力，压力室上部还需要设置一个具有密封结构的金属传力杆。最为经典的岩石常规三轴试验机包括美国的MTS Model 815型和GCTS RTR-4000型。
再有，岩石常规三轴试验机为了能够获得硬岩压缩破坏的峰后曲线，通常会参考国际岩石力学学会1999年提出的岩石单轴压缩全应力-应变曲线试验建议方法(Draft ISRM Suggested Method for the complete stress-strain curve  for intact rock in uniaxial compression)，该方法推荐了5MN/mm作为加载框架刚度的设计标准。
由于加载框架中部需要安置金属压力室，导致加载框架的上下净空和两个立柱之间的跨度增大，在保证加载框架刚度达到推荐值5MN/mm时，必须增加立柱的截面积，同时还需要使用高弹性模量的合金钢材料，在这样的设计方案下，将导致合金钢材料大幅增加，并使总成本提高，而且加载框架的安装和定位精度也不易保障。
另外，由于岩石常规三轴试验机的金属压力室采用上下运动的开启方式来实现岩石试样的安装和拆卸，因此需要借助扳手人工完成10～16个高强螺栓的拆装，而高强螺栓的拆装过程相当的费时费力，且每个高强螺栓的预紧力也不易保障，同时也大大降低了岩石常规三轴试验的效率。
再有，压力室在完成每次提升后，都需要花费相当长的时间等待压力室内壁的液压油滴落干净，由于液压油的粘度较大，液压油滴落干净的过程普遍需要10～20分钟，并且液压油也容易滴落到试验台或者地面上，造成周围环境的污染。
发明概述
技术问题
问题的解决方案
技术解决方案
针对现有技术存在的问题，本发明提供一种自带加载结构的快速旋转开启型高压岩石三轴压力室，取消了传统结构设计中的加载框架，在保证试验能力不降低的前提下，净空节省了50％，为结构刚度的进一步提升创造了条件，也有利于设备制造成本的降低；本发明摒弃了传统上下运动的开启方式，首次采用了快速旋转的开启方式，省去了传统需要拆装高强螺栓的过程，可使岩石试样的安装和拆卸时间节省1小时，不但降低了人员的劳动强度，也有效提高了试验效率，同时快速旋转的开启方式也避免了因液压油滴落造成的周围环境污染问题。
为了实现上述目的，本发明采用如下技术方案：一种自带加载结构的快速旋转开启型高压岩石三轴压力室，包括压力室壳体、压力室密封限位套筒、推力球 轴承、作动器缸筒、作动器活塞杆及作动器密封法兰盖；所述压力室壳体采用圆柱筒形结构，压力室壳体竖直设置且筒口朝下，在压力室壳体下端筒口的外圆周处设有法兰边沿；所述推力球轴承套装在压力室壳体外侧，推力球轴承与压力室壳体的中轴线相重合，推力球轴承的下部轴承圈与压力室壳体下端筒口处的法兰边沿相固连；所述压力室密封限位套筒套装在压力室壳体外侧，压力室密封限位套筒与压力室壳体的中轴线相重合，压力室密封限位套筒位于推力球轴承上方，压力室密封限位套筒底端与推力球轴承的上部轴承圈相固连，压力室密封限位套筒与压力室壳体之间留有转动间隙；在所述压力室壳体的侧向筒壁上分别开设有第一岩样装取孔和第二岩样装取孔，第一岩样装取孔和第二岩样装取孔的尺寸、形状以及高度位置均相同，且第一岩样装取孔和第二岩样装取孔正对设置；在所述第一岩样装取孔内设置有第一封堵块，第一封堵块与第一岩样装取孔之间采用密封滑动配合方式；在所述第二岩样装取孔内设置有第二封堵块，第二封堵块与第二岩样装取孔之间采用密封滑动配合方式；在所述压力室密封限位套筒的筒壁上开设有第三岩样装取孔，第三岩样装取孔与第一岩样装取孔和第二岩样装取孔处于同一高度，第三岩样装取孔的孔径大于第一岩样装取孔和第二岩样装取孔的孔径；所述作动器缸筒采用圆柱筒形结构，作动器缸筒竖直设置且筒口朝上，在作动器缸筒上端筒口的外圆周处设有法兰边沿，作动器缸筒上端筒口与压力室壳体下端筒口相对接，且作动器缸筒上端筒口的法兰边沿与压力室壳体下端筒口的法兰边沿之间通过高强螺栓相固连，压力室壳体与作动器缸筒共同构成大主应力加载的反力主体，作动器缸筒与压力室壳体的中轴线相重合；所述作动器活塞杆设置在作动器缸筒内，作动器活塞杆与作动器缸筒的中轴线相重合，作动器活塞杆中部杆体与作动器缸筒密封滑动配合；所述作动器密封法兰盖通过高强螺栓固装在作动器缸筒的上端筒口，且作动器密封法兰盖与作动器缸筒上端筒口之间密封配合，在作动器密封法兰盖的中心开设有活塞杆穿装孔，所述作动器活塞杆上部杆体穿过作动器密封法兰盖的活塞杆穿装孔延伸至压力室壳体内部，作动器活塞杆上部杆体与作动器密封法兰盖密封滑动配合。
在所述压力室壳体底部筒体上开设有围压油口，在所述作动器缸筒底部筒体上 开设有压力平衡腔，在压力平衡腔下方的作动器缸筒上开设有压力平衡油口，压力平衡油口与围压油口相通；所述作动器活塞杆下部杆体延伸至压力平衡腔中，作动器活塞杆下部杆体与压力平衡腔密封滑动配合。
所述作动器活塞杆中部杆体下方的作动器缸筒内部环形空间为应力加载腔，应力加载腔对应位置的作动器缸筒上开设有应力加载油口；所述作动器活塞杆中部杆体上方的作动器缸筒内部环形空间为应力卸载腔，应力卸载腔对应位置的作动器缸筒上开设有应力卸载油口。
在所述压力平衡腔下方的作动器缸筒上密封滑动安装有一根活塞位移监测杆，活塞位移监测杆上端固连在作动器活塞杆底端，活塞位移监测杆下端延伸至作动器缸筒外部，在活塞位移监测杆下端固连有一根转接支杆，在转接支杆与作动器缸筒之间连接有位移传感器。
在所述作动器密封法兰盖对应位置的作动器缸筒上开设有漏油监测口。
在所述作动器活塞杆顶部固装有岩样支撑架，岩样支撑架位于压力室壳体内部，岩样支撑架用于放置岩样，在岩样支撑架正上方的压力室壳体顶部内筒壁上固定吊装有测力传感器。
在所述压力室壳体顶部筒体上开设有排气口。
发明的有益效果
有益效果
本发明的有益效果：
本发明的自带加载结构的快速旋转开启型高压岩石三轴压力室，取消了传统结构设计中的加载框架，在保证试验能力不降低的前提下，净空节省了50％，为结构刚度的进一步提升创造了条件，也有利于设备制造成本的降低；本发明摒弃了传统上下运动的开启方式，首次采用了快速旋转的开启方式，省去了传统需要拆装高强螺栓的过程，可使岩石试样的安装和拆卸时间节省1小时，不但降低了人员的劳动强度，也有效提高了试验效率，同时快速旋转的开启方式也避免了因液压油滴落造成的周围环境污染问题。
对附图的简要说明
附图说明
图1为本发明的自带加载结构的快速旋转开启型高压岩石三轴压力室的结构示意图；
图中，1-压力室壳体，2-压力室密封限位套筒，3-推力球轴承，4-作动器缸筒，5-作动器活塞杆，6-作动器密封法兰盖，7-第一岩样装取孔，8-第二岩样装取孔，9-第一封堵块，10-第二封堵块，11-第三岩样装取孔，12-围压油口，13-压力平衡腔，14-压力平衡油口，15-应力加载腔，16-应力加载油口，17-应力卸载腔，18-应力卸载油口，19-活塞位移监测杆，20-转接支杆，21-位移传感器，22-漏油监测口，23-岩样支撑架，24-岩样，25-测力传感器，26-排气口。
发明实施例
本发明的实施方式
下面结合附图和具体实施例对本发明做进一步的详细说明。
如图1所示，一种自带加载结构的快速旋转开启型高压岩石三轴压力室，包括压力室壳体1、压力室密封限位套筒2、推力球轴承3、作动器缸筒4、作动器活塞杆5及作动器密封法兰盖6；所述压力室壳体1采用圆柱筒形结构，压力室壳体1竖直设置且筒口朝下，在压力室壳体1下端筒口的外圆周处设有法兰边沿；所述推力球轴承3套装在压力室壳体1外侧，推力球轴承3与压力室壳体1的中轴线相重合，推力球轴承3的下部轴承圈与压力室壳体1下端筒口处的法兰边沿相固连；所述压力室密封限位套筒2套装在压力室壳体1外侧，压力室密封限位套筒2与压力室壳体1的中轴线相重合，压力室密封限位套筒2位于推力球轴承3上方，压力室密封限位套筒2底端与推力球轴承3的上部轴承圈相固连，压力室密封限位套筒2与压力室壳体1之间留有转动间隙；在所述压力室壳体1的侧向筒壁上分别开设有第一岩样装取孔7和第二岩样装取孔8，第一岩样装取孔7和第二岩样装取孔8的尺寸、形状以及高度位置均相同，且第一岩样装取孔7和第二岩样装取孔8正对设置；在所述第一岩样装取孔7内设置有第一封堵块9，第一封堵块9与第一岩样装取孔7之间采用密封滑动配合方式；在所述第二岩样装取孔8内设置有第二封堵块10，第二封堵块10与第二岩样装取孔8之间采用密封滑动配合方式；在所述压力室密封限位套筒2的筒壁上开设有第三岩样装取孔11，第三岩样装 取孔11与第一岩样装取孔7和第二岩样装取孔8处于同一高度，第三岩样装取孔11的孔径大于第一岩样装取孔7和第二岩样装取孔8的孔径；所述作动器缸筒4采用圆柱筒形结构，作动器缸筒4竖直设置且筒口朝上，在作动器缸筒4上端筒口的外圆周处设有法兰边沿，作动器缸筒4上端筒口与压力室壳体1下端筒口相对接，且作动器缸筒4上端筒口的法兰边沿与压力室壳体1下端筒口的法兰边沿之间通过高强螺栓相固连，压力室壳体1与作动器缸筒4共同构成大主应力加载的反力主体，作动器缸筒4与压力室壳体1的中轴线相重合；所述作动器活塞杆5设置在作动器缸筒4内，作动器活塞杆5与作动器缸筒4的中轴线相重合，作动器活塞杆5中部杆体与作动器缸筒4密封滑动配合；所述作动器密封法兰盖6通过高强螺栓固装在作动器缸筒4的上端筒口，且作动器密封法兰盖6与作动器缸筒4上端筒口之间密封配合，在作动器密封法兰盖6的中心开设有活塞杆穿装孔，所述作动器活塞杆5上部杆体穿过作动器密封法兰盖6的活塞杆穿装孔延伸至压力室壳体1内部，作动器活塞杆5上部杆体与作动器密封法兰盖6密封滑动配合。
在所述压力室壳体1底部筒体上开设有围压油口12，在所述作动器缸筒4底部筒体上开设有压力平衡腔13，在压力平衡腔13下方的作动器缸筒4上开设有压力平衡油口14，压力平衡油口14与围压油口12相通；所述作动器活塞杆5下部杆体延伸至压力平衡腔13中，作动器活塞杆5下部杆体与压力平衡腔13密封滑动配合。当压力室壳体1内腔中完成围压施加后，或者在作动器缸筒4的应力加载腔15充油时，通过压力平衡油口14与围压油口12的连通状态，可以避免作动器活塞杆5不受围压干扰而产生扰动，进而保证作动器活塞杆5始终处于平衡状态。
所述作动器活塞杆5中部杆体下方的作动器缸筒4内部环形空间为应力加载腔15，应力加载腔15对应位置的作动器缸筒4上开设有应力加载油口16；所述作动器活塞杆5中部杆体上方的作动器缸筒4内部环形空间为应力卸载腔17，应力卸载腔16对应位置的作动器缸筒4上开设有应力卸载油口18。
在所述压力平衡腔13下方的作动器缸筒4上密封滑动安装有一根活塞位移监测杆19，活塞位移监测杆19上端固连在作动器活塞杆5底端，活塞位移监测杆19下端延伸至作动器缸筒4外部，在活塞位移监测杆19下端固连有一根转接支杆20，在转接支杆20与作动器缸筒4之间连接有位移传感器21。
在所述作动器密封法兰盖6对应位置的作动器缸筒4上开设有漏油监测口22，以保证压力室壳体1内腔中的液压油不与作动器缸筒4内腔中的液压油发生串腔。
在所述作动器活塞杆5顶部固装有岩样支撑架23，岩样支撑架23位于压力室壳体1内部，岩样支撑架23用于放置岩样24，在岩样支撑架23正上方的压力室壳体1顶部内筒壁上固定吊装有测力传感器25。
在所述压力室壳体1顶部筒体上开设有排气口26。
下面结合附图说明本发明的一次使用过程：
本实施例中，岩样24尺寸为直径50mm、高度为100mm的圆柱形试样；压力室壳体1内部的最大围压为100MPa，最大轴向压力为1000kN；第一岩样装取孔7、第二岩样装取孔8、第三岩样装取孔11、第一封堵块9及第二封堵块10均采用圆形或椭圆形；在第一封堵块9和第二封堵块10外表面均开设有螺纹孔，螺纹孔用于辅助第一封堵块9和第二封堵块10的拆装；压力室壳体1、压力室密封限位套筒2及作动器缸筒4均采用合金钢锻造与热处理工艺进行制造，保证加载结构具有足够的刚度；通过在作动器缸筒4上连接辅助支撑结构，使压力室整体固定放置在试验台上。
在加载试验前，先将制备好的岩样24进行密封处理，密封处理好的岩样24放到一旁等待后续试验，然后再将压力机整体调整到试验前的初始状态，在初始状态下，压力室密封限位套筒2的第三岩样装取孔11与压力室壳体1的第一岩样装取孔7正对，第一岩样装取孔7中并未安装第一封堵块9，而第二岩样装取孔8中已安装第二封堵块10，作动器活塞杆5处于下限位。需要说明的是，第一岩样装取孔7与第二岩样装取孔8作用完全相同，可以根据需要只需决定使用哪一个岩样装取孔，另外，之所以设计两个完全相同的岩样装取孔，也是为了更好的保证压力室壳体1的对称受力状态。
当压力机调整到初始状态后，将密封处理好的岩样24依次通过第三岩样装取孔11和第一岩样装取孔7放置到作动器活塞杆5顶部的岩样支撑架23上，然后将第一封堵块9装回到第一岩样装取孔7中，再将压力室密封限位套筒2旋转90°，此时装有第一封堵块9的第一岩样装取孔7被封闭在压力室密封限位套筒2内，此时岩样24完成安装。
当岩样24完成安装工作后，开始执行围压施加步骤，首先利用低压油泵通过围压油口12向压力室壳体1内腔中充入液压油，充油过程中排气口26处于打开状态，随着液压油的持续充入，压力室壳体1内腔中的空气会逐渐排出，直到排气口26由液压油流出，结束充油；接下来，先关闭排气口26，然后将低压油泵切换为高压油泵，利用高压油泵完成围压加载。
当围压施加结束后，开设执行大主应力加载步骤，首先通过应力加载油口16向作动器缸筒4的应力加载腔15中充油，以驱动作动器活塞杆5上移，并带动岩样24同步上移，直到岩样24与测力传感器25接触，然后根据岩样24的全破坏过程试验要求，开始执行计算机伺服控制加载，直至岩样24破坏失效。
当岩样24的加载试验结束后，先卸载围压，在卸载轴向载荷；卸载围压时，先将高压油泵关停，并使围压油口12的压力降为零，然后打开排气口26，再通过排气口26通入高压空气，以将压力室壳体1内腔中的液压油从围压油口12排出；卸载轴向载荷时，通过应力卸载油口18向作动器缸筒4的应力卸载腔17中充油，以驱动作动器活塞杆5下移至下限位。
当作动器活塞杆5移动到下限位后，重新将压力室密封限位套筒2旋转90°，使第三岩样装取孔11与第一岩样装取孔7恢复正对，再将第一封堵块9从第一岩样装取孔7中取下，最后依次通过第三岩样装取孔11和第一岩样装取孔7将破坏失效后的岩样24取出。
实施例中的方案并非用以限制本发明的专利保护范围，凡未脱离本发明所为的等效实施或变更，均包含于本案的专利范围中。

Claims (7)

  1. 一种自带加载结构的快速旋转开启型高压岩石三轴压力室，其特征在于：包括压力室壳体、压力室密封限位套筒、推力球轴承、作动器缸筒、作动器活塞杆及作动器密封法兰盖；所述压力室壳体采用圆柱筒形结构，压力室壳体竖直设置且筒口朝下，在压力室壳体下端筒口的外圆周处设有法兰边沿；所述推力球轴承套装在压力室壳体外侧，推力球轴承与压力室壳体的中轴线相重合，推力球轴承的下部轴承圈与压力室壳体下端筒口处的法兰边沿相固连；所述压力室密封限位套筒套装在压力室壳体外侧，压力室密封限位套筒与压力室壳体的中轴线相重合，压力室密封限位套筒位于推力球轴承上方，压力室密封限位套筒底端与推力球轴承的上部轴承圈相固连，压力室密封限位套筒与压力室壳体之间留有转动间隙；在所述压力室壳体的侧向筒壁上分别开设有第一岩样装取孔和第二岩样装取孔，第一岩样装取孔和第二岩样装取孔的尺寸、形状以及高度位置均相同，且第一岩样装取孔和第二岩样装取孔正对设置；在所述第一岩样装取孔内设置有第一封堵块，第一封堵块与第一岩样装取孔之间采用密封滑动配合方式；在所述第二岩样装取孔内设置有第二封堵块，第二封堵块与第二岩样装取孔之间采用密封滑动配合方式；在所述压力室密封限位套筒的筒壁上开设有第三岩样装取孔，第三岩样装取孔与第一岩样装取孔和第二岩样装取孔处于同一高度，第三岩样装取孔的孔径大于第一岩样装取孔和第二岩样装取孔的孔径；所述作动器缸筒采用圆柱筒形结构，作动器缸筒竖直设置且筒口朝上，在作动器缸筒上端筒口的外圆周处设有法兰边沿，作动器缸筒上端筒口与压力室壳体下端筒口相对接，且作动器缸筒上端筒口的法兰边沿与压力室壳体下端筒口的法兰边沿之间通过高强螺栓相固连，压力室壳体与作动器缸筒共同构成大主应力加载的反力主体，作动器缸筒与压力室壳体的中轴线相重合；所述作动器活塞杆设置在 作动器缸筒内，作动器活塞杆与作动器缸筒的中轴线相重合，作动器活塞杆中部杆体与作动器缸筒密封滑动配合；所述作动器密封法兰盖通过高强螺栓固装在作动器缸筒的上端筒口，且作动器密封法兰盖与作动器缸筒上端筒口之间密封配合，在作动器密封法兰盖的中心开设有活塞杆穿装孔，所述作动器活塞杆上部杆体穿过作动器密封法兰盖的活塞杆穿装孔延伸至压力室壳体内部，作动器活塞杆上部杆体与作动器密封法兰盖密封滑动配合。
  2. 根据权利要求1所述的一种自带加载结构的快速旋转开启型高压岩石三轴压力室，其特征在于：在所述压力室壳体底部筒体上开设有围压油口，在所述作动器缸筒底部筒体上开设有压力平衡腔，在压力平衡腔下方的作动器缸筒上开设有压力平衡油口，压力平衡油口与围压油口相通；所述作动器活塞杆下部杆体延伸至压力平衡腔中，作动器活塞杆下部杆体与压力平衡腔密封滑动配合。
  3. 根据权利要求1所述的一种自带加载结构的快速旋转开启型高压岩石三轴压力室，其特征在于：所述作动器活塞杆中部杆体下方的作动器缸筒内部环形空间为应力加载腔，应力加载腔对应位置的作动器缸筒上开设有应力加载油口；所述作动器活塞杆中部杆体上方的作动器缸筒内部环形空间为应力卸载腔，应力卸载腔对应位置的作动器缸筒上开设有应力卸载油口。
  4. 根据权利要求2所述的一种自带加载结构的快速旋转开启型高压岩石三轴压力室，其特征在于：在所述压力平衡腔下方的作动器缸筒上密封滑动安装有一根活塞位移监测杆，活塞位移监测杆上端固连在作动器活塞杆底端，活塞位移监测杆下端延伸至作动器缸筒外部，在活塞位移监测杆下端固连有一根转接支杆，在转接支杆与作动器缸筒之间连接有位移传感器。
  5. 根据权利要求1所述的一种自带加载结构的快速旋转开启型高压岩石三轴压力室，其特征在于：在所述作动器密封法兰盖对应位置的作动器缸筒上开设有漏油监测口。
  6. 根据权利要求1所述的一种自带加载结构的快速旋转开启型高压岩石三轴压力室，其特征在于：在所述作动器活塞杆顶部固装有岩样支撑架，岩样支撑架位于压力室壳体内部，岩样支撑架用于放置岩样，在岩样支撑架正上方的压力室壳体顶部内筒壁上固定吊装有测力传感器。
  7. 根据权利要求1所述的一种自带加载结构的快速旋转开启型高压岩石三轴压力室，其特征在于：在所述压力室壳体顶部筒体上开设有排气口。
PCT/CN2019/093514 2019-06-24 2019-06-28 一种自带加载结构的快速旋转开启型高压岩石三轴压力室 Ceased WO2020258207A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US16/961,900 US11320352B2 (en) 2019-06-24 2019-06-28 Rapid rotation opening type high-pressure rock triaxial pressure chamber with loading structure

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910548565.6A CN110208104B (zh) 2019-06-24 2019-06-24 一种自带加载结构的快速旋转开启型高压岩石三轴压力室
CN201910548565.6 2019-06-24

Publications (1)

Publication Number Publication Date
WO2020258207A1 true WO2020258207A1 (zh) 2020-12-30

Family

ID=67794299

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/093514 Ceased WO2020258207A1 (zh) 2019-06-24 2019-06-28 一种自带加载结构的快速旋转开启型高压岩石三轴压力室

Country Status (3)

Country Link
US (1) US11320352B2 (zh)
CN (1) CN110208104B (zh)
WO (1) WO2020258207A1 (zh)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114263737A (zh) * 2021-12-27 2022-04-01 内蒙古北方重工业集团有限公司 一种深地原位保真试验研究用超高压容器
CN115266798A (zh) * 2021-04-29 2022-11-01 中国石油化工股份有限公司 基于无磁材料的岩心夹持器及核磁共振驱替实验装置
CN115931568A (zh) * 2023-01-04 2023-04-07 山东科技大学 基于“先卸-后锚-再扰”的岩体真三轴试验系统及方法
CN119043927A (zh) * 2024-10-30 2024-11-29 东南大学溧阳基础设施安全与智慧技术创新中心 一种力学测试设备用液压动力检测设备
CN119198478A (zh) * 2024-09-20 2024-12-27 山东科技大学 一种受气体压力影响的煤-岩界面应力测试方法与装置
CN119197849A (zh) * 2024-11-21 2024-12-27 南通世睿电力科技有限公司 一种基于人工硐室试验模型的硐库压力智能检测控制方法

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112014227B (zh) * 2020-08-28 2021-07-06 东北大学 一种活塞杆自平衡主动卸载作动器及使用方法
CN112881188B (zh) * 2021-01-18 2022-03-08 中国矿业大学(北京) 一种实验室三维动态岩石破碎试验系统及方法
CN113464518B (zh) * 2021-06-30 2024-10-22 中铁二十一局集团轨道交通工程有限公司 一种基于多级串联液压油缸的劈裂枪
CN113503284B (zh) * 2021-06-30 2024-10-22 中铁二十一局集团轨道交通工程有限公司 一种基于多级串联液压油缸的可串接式劈裂枪
CN114166651B (zh) * 2021-12-08 2024-10-29 北京科技大学 一种在役承压设备微试样高温水应力腐蚀试验装置及方法
CN114279856B (zh) * 2021-12-27 2024-06-11 东北大学 用于直接获取岩样环向变形且便于更换岩样的胡克压力室
CN114992187B (zh) * 2022-08-03 2022-11-01 中国矿业大学(北京) 模型试验多功能均衡加载装置及方法
CN116907965A (zh) * 2023-03-29 2023-10-20 安徽理工大学 一种三轴耦合实验缸体引线装置
CN116577184B (zh) * 2023-05-16 2025-10-03 安徽省建筑科学研究设计院 一种便于试样安装的岩石三轴试验压力舱室
CN119470090B (zh) * 2024-10-12 2025-11-14 华能澜沧江水电股份有限公司 一种岩石试样变主应力方向加卸载循环试验方法及装置
CN119935629B (zh) * 2025-04-02 2025-07-22 东海实验室 一种深海柱状岩心移动定位装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102116720A (zh) * 2010-01-04 2011-07-06 中国科学院地质与地球物理研究所 变频变幅动态加载岩石力学试验系统
CN103728175A (zh) * 2014-01-06 2014-04-16 西南石油大学 一种钻井岩石力学多参数测试装置
CN104155175A (zh) * 2014-07-18 2014-11-19 中国科学院武汉岩土力学研究所 岩石空心圆柱扭剪仪
US9194784B1 (en) * 2012-07-26 2015-11-24 Hongfeng Bi High pressure, high temperature lubricity tester
CN105806710A (zh) * 2016-05-20 2016-07-27 中国科学院地质与地球物理研究所 一种用于岩体拉压协同作用的实验仪
CN206192784U (zh) * 2016-11-25 2017-05-24 中国科学院武汉岩土力学研究所 用于测试岩石热力学参数的三轴试验装置
CN109357953A (zh) * 2018-11-23 2019-02-19 吉林大学 一种用于高温高压三轴及水力压裂试验的岩心试验装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2815713B1 (fr) * 2000-10-19 2002-11-29 Commissariat Energie Atomique Eprouvette et montage d'essai en contrainte triaxiale pour materiau fragile
CN2468132Y (zh) * 2000-12-25 2001-12-26 陈秋原 激光碟片的存取装置
CN103278428B (zh) * 2013-05-10 2015-05-20 东北大学 含气页岩应力-渗流-温度耦合及驱替试验的装置及方法
CN106596281B (zh) * 2016-12-20 2018-03-13 东北大学 一种高压真三轴硬岩恒温时效破裂试验装置及方法
CN106918531B (zh) * 2016-12-28 2021-04-13 山东大学 可用于多相耦合的动静联合加载岩石试验机及试验方法
CN206710126U (zh) * 2017-04-12 2017-12-05 西南石油大学 一种可快速拆、装岩心的夹持器
CN107014980B (zh) * 2017-04-13 2019-09-24 西南石油大学 一种半开式岩心夹持器
CN108020470B (zh) * 2017-11-15 2019-10-25 东北大学 一种用于模拟超高压和高温地质条件的岩石三轴压力机
CN108982228B (zh) * 2018-07-14 2020-07-31 中国石油大学(华东) 一种可燃冰沉积物真三轴试验装置
CN109855973A (zh) * 2019-01-22 2019-06-07 东北大学 一种岩石三轴直接拉伸室内实验装置和方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102116720A (zh) * 2010-01-04 2011-07-06 中国科学院地质与地球物理研究所 变频变幅动态加载岩石力学试验系统
US9194784B1 (en) * 2012-07-26 2015-11-24 Hongfeng Bi High pressure, high temperature lubricity tester
CN103728175A (zh) * 2014-01-06 2014-04-16 西南石油大学 一种钻井岩石力学多参数测试装置
CN104155175A (zh) * 2014-07-18 2014-11-19 中国科学院武汉岩土力学研究所 岩石空心圆柱扭剪仪
CN105806710A (zh) * 2016-05-20 2016-07-27 中国科学院地质与地球物理研究所 一种用于岩体拉压协同作用的实验仪
CN206192784U (zh) * 2016-11-25 2017-05-24 中国科学院武汉岩土力学研究所 用于测试岩石热力学参数的三轴试验装置
CN109357953A (zh) * 2018-11-23 2019-02-19 吉林大学 一种用于高温高压三轴及水力压裂试验的岩心试验装置

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115266798A (zh) * 2021-04-29 2022-11-01 中国石油化工股份有限公司 基于无磁材料的岩心夹持器及核磁共振驱替实验装置
CN114263737A (zh) * 2021-12-27 2022-04-01 内蒙古北方重工业集团有限公司 一种深地原位保真试验研究用超高压容器
CN114263737B (zh) * 2021-12-27 2023-09-26 内蒙古北方重工业集团有限公司 一种深地原位保真试验研究用超高压容器
CN115931568A (zh) * 2023-01-04 2023-04-07 山东科技大学 基于“先卸-后锚-再扰”的岩体真三轴试验系统及方法
CN115931568B (zh) * 2023-01-04 2024-05-17 山东科技大学 基于“先卸-后锚-再扰”的岩体真三轴试验系统及方法
CN119198478A (zh) * 2024-09-20 2024-12-27 山东科技大学 一种受气体压力影响的煤-岩界面应力测试方法与装置
CN119043927A (zh) * 2024-10-30 2024-11-29 东南大学溧阳基础设施安全与智慧技术创新中心 一种力学测试设备用液压动力检测设备
CN119197849A (zh) * 2024-11-21 2024-12-27 南通世睿电力科技有限公司 一种基于人工硐室试验模型的硐库压力智能检测控制方法

Also Published As

Publication number Publication date
CN110208104B (zh) 2021-06-08
US20210156773A1 (en) 2021-05-27
CN110208104A (zh) 2019-09-06
US11320352B2 (en) 2022-05-03

Similar Documents

Publication Publication Date Title
WO2020258207A1 (zh) 一种自带加载结构的快速旋转开启型高压岩石三轴压力室
CN112557203B (zh) 针对含裂缝岩石的热水力耦合三轴试验方法
CN106596281B (zh) 一种高压真三轴硬岩恒温时效破裂试验装置及方法
US10012577B2 (en) Rock hollow cylinder torsional shear apparatus
CN110160875B (zh) 一种适用于真三轴试验机的双层同心式加载框架结构
CN106018059A (zh) 一种适用于岩石的可实现主应力轴旋转的试验装置及方法
CN106918531A (zh) 可用于多相耦合的动静联合加载岩石试验机及试验方法
CN108020470B (zh) 一种用于模拟超高压和高温地质条件的岩石三轴压力机
WO2021012371A1 (zh) 无框架岩石三轴实验仪及工作方法
CN106769797A (zh) 一种地质体结构面应力渗流耦合剪切流变系统
CN102937013A (zh) 井架式长冲程液压抽油机
CN106555787B (zh) 一种楔形结构液压支撑位移控制系统及其使用方法
CN108194751A (zh) 一种防喷器高效试压方法及防喷器卡箍
CN102180426A (zh) 随动支撑装置及方法
CN107063876A (zh) 一种便携式自密封岩石三轴试验高压舱
CN206268173U (zh) 一种楔形结构液压支撑位移控制系统
CN117705603B (zh) 废弃巷道注浆改造压气储能库围岩劣化模拟装置及方法
CN106769493B (zh) 一种基于动态疲劳试验机的伪三轴测试装置
CN216297518U (zh) 一种用于工作辊系平衡的独体油缸平衡装置
CN120869486B (zh) 一种液压支架用压力平衡杆式三伸缩立柱密封检测方法
CN211852132U (zh) 一种高压双螺杆泵泵体打压工装
CN206583718U (zh) 基于动态疲劳试验机的伪三轴测试装置
CN206886590U (zh) 桩基自平衡法用柱塞式千斤顶
CN115602036B (zh) 一种自平衡式的地下结构高内压模拟试验系统及方法
CN207921021U (zh) 一种捣固车起道油缸

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19934488

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19934488

Country of ref document: EP

Kind code of ref document: A1