WO2020048185A2 - Apparatus design and method for using rock true triaxial loading test system to develop fractured rock mass anisotrophic seepage test - Google Patents
Apparatus design and method for using rock true triaxial loading test system to develop fractured rock mass anisotrophic seepage test Download PDFInfo
- Publication number
- WO2020048185A2 WO2020048185A2 PCT/CN2019/092314 CN2019092314W WO2020048185A2 WO 2020048185 A2 WO2020048185 A2 WO 2020048185A2 CN 2019092314 W CN2019092314 W CN 2019092314W WO 2020048185 A2 WO2020048185 A2 WO 2020048185A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fluid
- seepage
- pressure
- rock
- test
- Prior art date
Links
- 239000011435 rock Substances 0.000 title claims abstract description 93
- 238000012360 testing method Methods 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims description 6
- 238000013461 design Methods 0.000 title description 2
- 239000012530 fluid Substances 0.000 claims abstract description 84
- 230000035699 permeability Effects 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 238000005259 measurement Methods 0.000 claims abstract description 6
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 238000012544 monitoring process Methods 0.000 claims description 4
- 238000003754 machining Methods 0.000 claims description 3
- 230000008878 coupling Effects 0.000 abstract description 4
- 238000010168 coupling process Methods 0.000 abstract description 4
- 238000005859 coupling reaction Methods 0.000 abstract description 4
- 230000003204 osmotic effect Effects 0.000 abstract description 4
- 230000008595 infiltration Effects 0.000 description 4
- 238000001764 infiltration Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000009715 pressure infiltration Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
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
- G01N15/082—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
Definitions
- the invention relates to the field of an experimental device for seepage testing of anisotropic fractured rock masses, and more particularly to a device design and method for performing anisotropic seepage testing of fractured rock masses using a true triaxial loading test system for rocks.
- the present invention provides a test device for testing anisotropic seepage in fractured rock masses using a true triaxial loading test system for rocks.
- the present invention can realize fractured rocks under complex coupling conditions of high stress and high osmotic pressure.
- the true triaxial anisotropic seepage test can also meet the unidirectional permeability measurement of the rock mass, solve the problem of local infiltration on the surface of the rock sample, and ensure that the high-pressure infiltrated fluid has a good seal, and can accurately control and measure the seepage fluid. Volume and pressure.
- An apparatus for testing anisotropic seepage in fractured rock masses using a rock true triaxial loading test system includes a frame, a seepage component, and a rock sample.
- the frame is provided with a plurality of oil cylinders, and the plurality of oil cylinders are respectively disposed on the left side of the frame.
- the seepage component includes six pressure plates, which are distributed on the six surfaces of the rock sample, and are tightly connected with the piston rod of the oil cylinder through a pressure column; the pressure plate is provided with a cylindrical slot, The cylindrical slot hole is matched with the pressure column, the cylindrical slot hole is coaxial with the side of the pressure plate, and a fluid pipe is also provided at the inner axis of the pressure plate and the pressure column.
- the extension is connected to a fluid metering pump.
- the pressure plate is a rigid oblique pressure plate.
- a diffused cushion layer is provided between the pressure plate and the rock sample.
- the diffuser cushion layer includes diffuser holes, an internal support, and an edge support, and the diffuser holes and the internal support are evenly distributed inside the edge support.
- a rubber seal is filled at the intersection of the diffuser cushion layers, and a rubber seal is filled at the interface of the pressure plate.
- a lower side inside the frame is provided on the cushion block.
- the invention can realize true triaxial anisotropic seepage test of fractured rock mass under complex coupling conditions of high stress and high osmotic pressure. At the same time, it can also measure the unidirectional permeability of rock mass.
- the sample surface has local permeability problems, and has achieved a good seal of the high-pressure infiltrated fluid, which can accurately control and measure the volume and pressure of the seepage fluid.
- one-way permeability testing and one surface of the rock sample in three directions can be achieved on one device.
- the device has a wide range of applicability, eliminating the need for complicated disassembly and assembly work and improving test efficiency.
- the sealing strip By making the sealing strip into a special shape of the flexible sealing strip, it can achieve a good seal against high-pressure fluid and ensure high accuracy of fluid pressure or flow; meanwhile, the diffuser cushion layer and the rubber sealing strip are in the rock sample. The corners are connected by lap joints. Through the coordinated deformation between the sealing strip and the diffuser cushion layer, there is a good seal around each surface, and the fluid on each rock surface does not interfere with each other, improving the accuracy of the penetration test; It can ensure that there is no extra dead space inside the seal assembly, and it is convenient to accurately control and measure the pressure and volume of the fluid injected into the rock mass.
- FIG. 1 is a front sectional view of the overall structure of the present invention
- FIG. 2 is a front structural view of a pressure plate of the present invention
- FIG. 3 is a schematic diagram of a structure of a diffuse cushion of the present invention.
- FIG. 4 is an overall schematic view of a rubber sealing strip according to the present invention.
- Icons 1-frame, 2-cylinder, 3-pressure sensor, 4-pressure column, 5-pad, 6-pressurizing plate, 601-cylindrical slot, 602-fluid channel, 7-rubber seal, 8 -Diffuse cushion, 801-edge support, 802-inner support, 803-diffuse orifice, 9-rock sample, 10-fluid pipeline, 11-fluid metering pump, 12-valve.
- the present invention provides a test device for testing anisotropic seepage in fractured rock masses using a true triaxial loading test system for rocks.
- the test device includes a frame 1, a seepage component, and a rock sample 9.
- the stress of the device changes; the oil cylinder 2 is used to fix the front, rear, left, right, and upper five sides of the seepage component, and the rock sample 9 is provided inside the seepage component;
- the seepage component includes six pressure plates 6, and the plus The pressure plate 6 is distributed on the six surfaces of the rock sample 9 and is tightly connected to the piston rod of the oil cylinder 2 through the pressure column 4.
- the pressure plate 6 is provided with a cylindrical slot 601, which is connected with the pressure column 4.
- the cylindrical slot hole 601 is coaxial with the side surface of the pressure plate 6, and a fluid pipe 10 is also provided at the inner axis of the pressure plate 6 and the pressure column 4.
- the fluid pipe 10 extends outside and The fluid metering pump 11 is connected.
- the invention can realize true triaxial anisotropic seepage test of fractured rock mass under complex coupling conditions of high stress and high osmotic pressure, and can also measure the unidirectional permeability of rock mass, and solves the problem of rock sample 9
- the problem of local infiltration on the surface and the realization of good sealing of high-pressure infiltration fluid can accurately control and measure the volume and pressure of the infiltration fluid.
- the pressure plate 6 is a rigid oblique pressure plate 6; the pressure plate 6 uses an oblique rigid pressure plate 6, and a gap is reserved at the corner of the rock sample 9 to achieve independent pressure of each pressure plate 6 , Without interfering with each other, improving the accuracy of loading stress; at the same time, three rigid oblique pressure plates 6 on the opposite side independently apply three-way stress, realizing true triaxial stress conditions for seepage test.
- a diffused cushion layer 8 is provided between the pressure plate 6 and the rock sample 9.
- a perforated diffused cushion layer 8 is provided to achieve uniform distribution of fluid pressure or flow rate on the surface of the rock sample 9 to prevent local fluid infiltration by the initial fluid injected by the fluid pipeline 10 on the surface of the rock sample 9.
- the diffuser cushion layer 8 includes diffuser holes 803, an internal support 802, and an edge support 801.
- the diffuser holes 803 and the internal support 802 are evenly distributed inside the edge support 801.
- a rubber sealing strip 7 is filled at the intersection of the diffuser cushion layers 8, and a rubber sealing strip 7 is filled at the junction of the pressure plate 6.
- the lower side inside the frame 1 is provided on a cushion block 5. Better fit the upper pressure column 4 to apply normal stress and support the overall seal assembly.
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (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
Disclosed is a test apparatus for using a rock true triaxial loading test system to develop a fractured rock mass anisotrophic seepage test, said apparatus comprising a frame, a seepage assembly and a rock sample, the frame being internally provided with cylinders, piston rods of the cylinders being connected to pressure sensors, the cylinders being used for fixing the seepage assembly, the rock sample being arranged inside the seepage assembly, the seepage assembly comprising pressure application plates, the pressure application plates being mounted on six surfaces of the rock sample, the pressure application plates being connected to the piston rods of the cylinders via press rods, the pressure application plates being provided with cylindrical slots matched with the press rods, inner axes of the pressure application plates and the press rods being provided with fluid pipelines, the fluid pipelines being connected to fluid metering pumps. The present invention can implement a fractured rock mass true triaxial anisotrophic seepage test under high stress and high osmotic pressure complex coupling conditions, and can also satisfy rock mass unidirectional permeability measurements, thereby solving the problem of rock sample surface local permeation, ensuring that a high pressure permeation fluid has good sealing performance, and accurately controlling and metering seepage fluid volume and pressure.
Description
本发明涉及一种用于各向异性裂隙岩体渗流测试的实验装置领域，更具体地说是一种利用岩石真三轴加载测试***开展裂隙岩体各向异性渗流测试的装置设计及方法。The invention relates to the field of an experimental device for seepage testing of anisotropic fractured rock masses, and more particularly to a device design and method for performing anisotropic seepage testing of fractured rock masses using a true triaxial loading test system for rocks.
随着国内外岩土工程的迅速发展，裂隙岩体渗流特性对工程稳定性的影响越来越受到关注。天然裂隙岩体中存在大量随机不连续分布的地质结构面，比如节理、断层、裂隙、层理、片理面等，这些发育程度不同的结构弱面致使其渗透性具有明显的各向异性特征，裂隙岩体各向异性渗流特性的研究与评价作为岩土工程的重要基础理论和应用技术，研究岩体各向异性渗流特性的重要性不言而喻。目前国内外已经展开大量的研究工作，同时大量岩体渗流试验装置测试方法相继被提出以满足研究需求，但这些装置及测试方法通常只能满足立方体或圆柱体岩样某一特定方向上的渗流特性测试，无法对同一岩体的各向异性渗流进行有效测试，因此亟需研发出一种简单易行并能较好服务于裂隙岩体各向异性渗流特性研究的试验装置。With the rapid development of geotechnical engineering at home and abroad, the influence of seepage characteristics of fractured rock masses on engineering stability has received more and more attention. There are a large number of randomly discontinuous geological structural planes in natural fractured rock masses, such as joints, faults, fissures, bedding planes, lamellar planes, etc. These weakly developed planes with different degrees of development make their permeability have anisotropic characteristics The research and evaluation of anisotropic seepage characteristics of fractured rock masses is an important basic theory and applied technology for geotechnical engineering. It is self-evident that the study of anisotropic seepage characteristics of rock masses is self-evident. At present, a lot of research work has been carried out at home and abroad, and a large number of rock mass seepage test devices have been proposed to meet the research needs. However, these devices and test methods can usually only meet the seepage flow of a cubic or cylindrical rock sample in a specific direction. The characteristic test cannot effectively test the anisotropic seepage of the same rock mass. Therefore, it is urgent to develop an experimental device that is simple and easy to perform and can be used to study the anisotropic seepage characteristics of fractured rock masses.
当今，液压伺服控制技术在岩土领域涉及的相关力学试验已取得了长足的发展，在此基础上研制的真三轴伺服控制压力机发展十分迅速，技术也相当成熟，可满足当前各种岩石破坏力学试验的应力应变控制和边界条件的实现。同时各 种高强度、耐压、耐磨橡胶材料已普遍运用于各种极端条件环境下的密封装置，使得进行适用于裂隙岩体各向异性渗流测试试验装置的研发进一步得以实现。Today, hydraulic servo control technology has made considerable progress in related mechanical tests in the geotechnical field. The true three-axis servo control press developed on this basis has developed rapidly, and the technology is quite mature, which can meet the current various rocks. Realization of stress-strain control and boundary conditions in failure mechanics tests. At the same time, various high-strength, pressure-resistant and wear-resistant rubber materials have been commonly used in sealing devices under various extreme conditions, making the development of an anisotropic seepage test device suitable for fractured rock masses further realized.
发明内容Summary of the Invention
针对现有技术中上述的不足，本发明提供一种利用岩石真三轴加载测试***开展裂隙岩体各向异性渗流测试试验装置，本发明能够实现高应力、高渗透压复杂耦合条件下裂隙岩体真三轴各向异性渗流测试，还能满足岩体单向渗透能力测量，解决了在岩样表面局部渗透问题，并能够保证高压渗透流体具有良好密封性，能精准控制和计量渗流流体的体积和压力。In view of the above-mentioned shortcomings in the prior art, the present invention provides a test device for testing anisotropic seepage in fractured rock masses using a true triaxial loading test system for rocks. The present invention can realize fractured rocks under complex coupling conditions of high stress and high osmotic pressure. The true triaxial anisotropic seepage test can also meet the unidirectional permeability measurement of the rock mass, solve the problem of local infiltration on the surface of the rock sample, and ensure that the high-pressure infiltrated fluid has a good seal, and can accurately control and measure the seepage fluid. Volume and pressure.
本发明的实施例是这样实现的：The embodiments of the present invention are implemented as follows:
利用岩石真三轴加载测试***开展裂隙岩体各向异性渗流测试试验装置，包括框架、渗流组件和岩样，所述框架内设有多个油缸，所述多个油缸分别设置在框架左侧、右侧、前侧、后侧和上侧，且油缸的活塞杆上连接有压力传感器，油缸用于固定所述渗流组件的前后左右上五个侧面，所述岩样设置在所述渗流组件内部；所述渗流组件包括六块加压板，所述加压板分布于岩样的六个表面，并通过压柱与油缸的活塞杆紧密连接，加压板设有圆柱形槽孔，所述圆柱形槽孔与压柱配合，所述圆柱形槽孔与加压板侧面同轴心，所述加压板与所述压柱内部轴心处还设有流体管道，所述流体管道外延伸与流体计量泵连接。An apparatus for testing anisotropic seepage in fractured rock masses using a rock true triaxial loading test system includes a frame, a seepage component, and a rock sample. The frame is provided with a plurality of oil cylinders, and the plurality of oil cylinders are respectively disposed on the left side of the frame. , Right side, front side, rear side and upper side, and a pressure sensor is connected to the piston rod of the oil cylinder, the oil cylinder is used to fix the front, rear, left, right, and upper five sides of the seepage component, and the rock sample is arranged on the seepage component Inside; the seepage component includes six pressure plates, which are distributed on the six surfaces of the rock sample, and are tightly connected with the piston rod of the oil cylinder through a pressure column; the pressure plate is provided with a cylindrical slot, The cylindrical slot hole is matched with the pressure column, the cylindrical slot hole is coaxial with the side of the pressure plate, and a fluid pipe is also provided at the inner axis of the pressure plate and the pressure column. The extension is connected to a fluid metering pump.
作为优选的，所述的加压板为刚性斜角加压板。Preferably, the pressure plate is a rigid oblique pressure plate.
作为优选的，所述加压板与所述岩样之间设有散流垫层。Preferably, a diffused cushion layer is provided between the pressure plate and the rock sample.
作为优选的，所述散流垫层包括散流小孔、内部支撑体和边缘支撑体，所述散流小孔和所述内部支撑体均匀分布于边缘支撑体内部。Preferably, the diffuser cushion layer includes diffuser holes, an internal support, and an edge support, and the diffuser holes and the internal support are evenly distributed inside the edge support.
作为优选的，所述散流垫层相互交接处填充有橡胶密封条，所述加压板交 界处填充有橡胶密封条。Preferably, a rubber seal is filled at the intersection of the diffuser cushion layers, and a rubber seal is filled at the interface of the pressure plate.
作为优选的，所述框架内部的下侧设于垫块。Preferably, a lower side inside the frame is provided on the cushion block.
一种如上所述的利用岩石真三轴加载测试***开展裂隙岩体各向异性渗流测试的方法，包括以下步骤：A method for performing anisotropic seepage test of fractured rock mass using a true triaxial loading test system for rocks as described above, including the following steps:
(1)将待测裂隙岩体加工成长×宽×高＝50mm×50mm×50mm的立方体试样；(2)将六块加压板分别与样块的六面紧密连接；(3)将压柱安装于圆柱形槽孔内并与油缸的活塞杆紧密连接；(4)将各压柱及加压板内的流体管道与流体计量泵连接，并检查传感器的工作状态；(5)先对岩样施加法向应力至5MPa，然后同时对另两个方向施加应力至5MPa；(6)利用流体管道对岩样抽真空，达到真空度后，关闭管路，检查密封性；(7)对岩样各个方向施加相应的荷载；(8)测量单向渗透能力时，打开全部流体计量泵，采用较低的流体压力向流体管道注入流体，流体充满流体管道后，关闭其两个方向的阀门，对于测量方向上的流体计量泵工作状态改为一个为注入，另一个为回流；(9)测试完成后，关闭监测***，首先对流体泄压，流体泄压后再缓慢卸载三个方向上的应力；(10)拆卸完成后，各部件归类存放，流体管道采用抽真空方式排除剩余流体然后进行存放。(1) Machining the fractured rock mass to be tested to grow × width × height = 50mm × 50mm × 50mm cube sample; (2) tightly connect the six pressure plates to the six sides of the sample; (3) press the The column is installed in a cylindrical slot and tightly connected to the piston rod of the oil cylinder; (4) Connect the fluid pipes in each pressure column and pressure plate with the fluid metering pump, and check the working status of the sensor; (5) First, Apply normal stress to the rock sample to 5 MPa, and then apply stress to the other two directions to 5 MPa at the same time; (6) use a fluid pipeline to evacuate the rock sample, and after the vacuum is reached, close the pipeline and check the tightness; (7) pair Corresponding loads are applied in all directions of the rock sample; (8) When measuring the one-way permeability, turn on all fluid metering pumps and use a lower fluid pressure to inject fluid into the fluid pipeline. After the fluid fills the fluid pipeline, close the valves in both directions. For the fluid metering pump in the measurement direction, the working state is changed to one for injection and the other for backflow; (9) After the test is completed, the monitoring system is closed, and the fluid is first depressurized. After the fluid is depressurized, the three directions are slowly unloaded. (10) After the disassembly is completed, each Classification storage member, the fluid conduit using vacuum excluded the remaining fluid before storing.
发明的有益效果是：The beneficial effects of the invention are:
1、本发明能够实现高应力、高渗透压复杂耦合条件下裂隙岩体真三轴各向异性渗流测试，同时还能满足岩体单向渗透能力测量，解决了采用渗流管道注入流体时在岩样表面进行局部渗透问题，并实现了高压渗透流体的具有良好密封性，能精准控制和计量渗流流体的体积和压力。1. The invention can realize true triaxial anisotropic seepage test of fractured rock mass under complex coupling conditions of high stress and high osmotic pressure. At the same time, it can also measure the unidirectional permeability of rock mass. The sample surface has local permeability problems, and has achieved a good seal of the high-pressure infiltrated fluid, which can accurately control and measure the volume and pressure of the seepage fluid.
2、通过改变流体管道上阀门的开闭状态以及岩样六个表面对应的流体计 量泵的工作状态，可以在一台装置上分别实现岩样三个方向上的单向渗透能力测试、单面流体注入的各向异性渗透能力测试、多面流体注入的各向异性渗透能力测试，装置适用性广泛，无需进行复杂的拆卸装配工作，提高试验效率。2. By changing the opening and closing status of the valve on the fluid pipeline and the working status of the fluid metering pump corresponding to the six surfaces of the rock sample, one-way permeability testing and one surface of the rock sample in three directions can be achieved on one device. Anisotropic permeability test for fluid injection and anisotropic permeability test for multi-faceted fluid injection. The device has a wide range of applicability, eliminating the need for complicated disassembly and assembly work and improving test efficiency.
3、通过将密封条做成特殊形状的柔性密封条，可以实现对高压流体具有良好的密封性，保证流体压力或流量具有较高的精确性；同时散流垫层与橡胶密封条在岩样边角处采用搭接式连接，通过密封条与散流垫层之间的协调变形实现各面周围具有良好的密封性，各个岩面上的流体互不干扰，提高渗透测试的准确性；还可以保证了密封组合件内部没有多余的死空间，便于对岩体注入流体的压力和体积进行精确控制和测量。3. By making the sealing strip into a special shape of the flexible sealing strip, it can achieve a good seal against high-pressure fluid and ensure high accuracy of fluid pressure or flow; meanwhile, the diffuser cushion layer and the rubber sealing strip are in the rock sample. The corners are connected by lap joints. Through the coordinated deformation between the sealing strip and the diffuser cushion layer, there is a good seal around each surface, and the fluid on each rock surface does not interfere with each other, improving the accuracy of the penetration test; It can ensure that there is no extra dead space inside the seal assembly, and it is convenient to accurately control and measure the pressure and volume of the fluid injected into the rock mass.
为了更清楚地说明本发明实施例的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，应当理解，以下附图仅示出了本发明的某些实施例，因此不应被看作是对范围的限定，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他相关的附图。In order to explain the technical solution of the embodiments of the present invention more clearly, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and therefore are not It should be regarded as a limitation on the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without paying creative work.
图1为本发明整体结构正视剖面图；1 is a front sectional view of the overall structure of the present invention;
图2为本发明加压板正视结构图；2 is a front structural view of a pressure plate of the present invention;
图3为本发明散流垫层结构示意图；FIG. 3 is a schematic diagram of a structure of a diffuse cushion of the present invention; FIG.
图4为本发明橡胶密封条整体示意图。FIG. 4 is an overall schematic view of a rubber sealing strip according to the present invention.
图标：1-框架，2-油缸，3-压力传感器，4-压柱，5-垫块，6-加压板，601-圆柱形槽孔，602-流体通道，7-橡胶密封条，8-散流垫层，801-边缘支撑体，802-内部支撑体，803-散流小孔，9-岩样，10-流体管道，11-流体计量泵，12-阀门。Icons: 1-frame, 2-cylinder, 3-pressure sensor, 4-pressure column, 5-pad, 6-pressurizing plate, 601-cylindrical slot, 602-fluid channel, 7-rubber seal, 8 -Diffuse cushion, 801-edge support, 802-inner support, 803-diffuse orifice, 9-rock sample, 10-fluid pipeline, 11-fluid metering pump, 12-valve.
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。通常在此处附图中描述和示出的本发明实施例的组件可以以各种不同的配置来布置和设计。In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, but not all the embodiments. The components of embodiments of the invention, generally described and illustrated in the figures herein, can be arranged and designed in a variety of different configurations.
因此，以下对在附图中提供的本发明的实施例的详细描述并非旨在限制要求保护的本发明的范围，而是仅仅表示本发明的选定实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
以下结合附图对本发明作进一步描述：The invention is further described below with reference to the drawings:
如图1-4所示，本发明提供一种利用岩石真三轴加载测试***开展裂隙岩体各向异性渗流测试试验装置，包括框架1、渗流组件和岩样9，所述框架1内设有多个油缸2，所述多个油缸2分别设置在框架1的左侧、右侧、前侧、后侧和上侧，且油缸2的活塞杆上连接有压力传感器3，用以实时监测装置的应力变化；油缸2用于固定所述渗流组件的前后左右上五个侧面，所述岩样9设置在所述渗流组件内部；所述渗流组件包括六块加压板6，所述加压板6分布于岩样9的六个表面，并通过压柱4与油缸2的活塞杆紧密连接，加压板6设有圆柱形槽孔601，所述圆柱形槽孔601与压柱4配合，所述圆柱形槽孔601与加压板6侧面同轴心，所述加压板6与所述压柱4内部轴心处还设有流体管道10，所述流体管道10外延伸与流体计量泵11连接。本发明能够实现高应力、高渗透压复杂耦合条件下裂隙岩体真三轴各向异性渗流测试，同时还能满足岩体单向渗透能力测量，解决了采用渗流管道注入流体时在岩样9表面进行局部渗透问题，并实现了高压渗透流体的具有良好密封性，能精准控制和计量渗流流体的体积和压力。在测量单向渗透能力时只需通过改变流体管道10上阀门 12的开闭状态以及岩样9六个表面对应的流体计量泵11的工作状态，即可实现在一台装置上分别实现岩样9三个方向上的单向渗透能力测试、单面流体注入的各向异性渗透能力测试、多面流体注入的各向异性渗透能力测试，装置适用性广泛，无需进行复杂的拆卸装配工作，提高试验效率。As shown in Figs. 1-4, the present invention provides a test device for testing anisotropic seepage in fractured rock masses using a true triaxial loading test system for rocks. The test device includes a frame 1, a seepage component, and a rock sample 9. There are a plurality of oil cylinders 2, which are respectively arranged on the left, right, front, rear and upper sides of the frame 1, and a pressure sensor 3 is connected to the piston rod of the oil cylinder 2 for real-time monitoring The stress of the device changes; the oil cylinder 2 is used to fix the front, rear, left, right, and upper five sides of the seepage component, and the rock sample 9 is provided inside the seepage component; the seepage component includes six pressure plates 6, and the plus The pressure plate 6 is distributed on the six surfaces of the rock sample 9 and is tightly connected to the piston rod of the oil cylinder 2 through the pressure column 4. The pressure plate 6 is provided with a cylindrical slot 601, which is connected with the pressure column 4. In cooperation, the cylindrical slot hole 601 is coaxial with the side surface of the pressure plate 6, and a fluid pipe 10 is also provided at the inner axis of the pressure plate 6 and the pressure column 4. The fluid pipe 10 extends outside and The fluid metering pump 11 is connected. The invention can realize true triaxial anisotropic seepage test of fractured rock mass under complex coupling conditions of high stress and high osmotic pressure, and can also measure the unidirectional permeability of rock mass, and solves the problem of rock sample 9 The problem of local infiltration on the surface and the realization of good sealing of high-pressure infiltration fluid can accurately control and measure the volume and pressure of the infiltration fluid. When measuring the one-way permeability, simply change the opening and closing state of the valve 12 on the fluid pipeline 10 and the working state of the fluid metering pump 11 corresponding to the six surfaces of the rock sample 9 to realize the rock samples on one device. 9 Unidirectional permeability test in three directions, anisotropic permeability test for single-sided fluid injection, and anisotropic permeability test for multi-sided fluid injection. The device has a wide range of applicability, eliminating the need for complicated disassembly and assembly work and improving the test. effectiveness.
所述的加压板6为刚性斜角加压板6；加压板6采用斜角刚性加压板6，并在岩样9边角处预留空隙，实现各个加压板6独立加压，互不干涉，提高了加载应力精准性；同时六块刚性斜角加压板6对侧独立施加三向应力，实现了渗流测试的真三轴应力条件。The pressure plate 6 is a rigid oblique pressure plate 6; the pressure plate 6 uses an oblique rigid pressure plate 6, and a gap is reserved at the corner of the rock sample 9 to achieve independent pressure of each pressure plate 6 , Without interfering with each other, improving the accuracy of loading stress; at the same time, three rigid oblique pressure plates 6 on the opposite side independently apply three-way stress, realizing true triaxial stress conditions for seepage test.
所述加压板6与所述岩样9之间设有散流垫层8。设置带孔散流垫层8实现流体压力或流量均匀分散在岩样9表面，避免流体管道10注入的初始流体在岩样9表面进行局部渗透。A diffused cushion layer 8 is provided between the pressure plate 6 and the rock sample 9. A perforated diffused cushion layer 8 is provided to achieve uniform distribution of fluid pressure or flow rate on the surface of the rock sample 9 to prevent local fluid infiltration by the initial fluid injected by the fluid pipeline 10 on the surface of the rock sample 9.
所述散流垫层8包括散流小孔803、内部支撑体802和边缘支撑体801，所述散流小孔803和所述内部支撑体802均匀分布于边缘支撑体801内部。The diffuser cushion layer 8 includes diffuser holes 803, an internal support 802, and an edge support 801. The diffuser holes 803 and the internal support 802 are evenly distributed inside the edge support 801.
所述散流垫层8相互交接处填充有橡胶密封条7，所述加压板6交界处填充有橡胶密封条7。通过将密封条做成特殊形状的柔性密封条，可以实现对高压流体具有良好的密封性，保证流体压力或流量具有较高的精确性；同时散流垫层8与橡胶密封条7在岩样9边角处采用搭接式连接，通过密封条与散流垫层8之间的协调变形实现各面周围具有良好的密封性，各个岩面上的流体互不干扰，提高渗透测试的准确性；还可以保证了密封组合件内部没有多余的死空间，便于对岩体注入流体的压力和体积进行精确控制和测量。A rubber sealing strip 7 is filled at the intersection of the diffuser cushion layers 8, and a rubber sealing strip 7 is filled at the junction of the pressure plate 6. By making the sealing strip into a special-shaped flexible sealing strip, it is possible to achieve a good seal against high-pressure fluid and ensure a high accuracy of fluid pressure or flow; meanwhile, the diffuser cushion layer 8 and the rubber sealing strip 7 are in the rock sample. Nine corners are connected by lap joints. Through the coordinated deformation between the sealing strip and the diffuser cushion layer 8, good sealing around the sides is achieved, and the fluid on each rock surface does not interfere with each other, improving the accuracy of the penetration test. It can also ensure that there is no extra dead space inside the seal assembly, which is convenient for precise control and measurement of the pressure and volume of the fluid injected into the rock mass.
所述框架1内部的下侧设于垫块5。更好的配合上侧压柱4施加法向应力以及支撑整体密封组件。The lower side inside the frame 1 is provided on a cushion block 5. Better fit the upper pressure column 4 to apply normal stress and support the overall seal assembly.
一种如上所述的利用岩石真三轴加载测试***开展裂隙岩体各向异性渗流测试的方法，步骤如下：A method for performing anisotropic seepage test of fractured rock mass using a true triaxial rock load test system as described above, the steps are as follows:
(1)将待测裂隙岩体加工成长×宽×高＝50mm×50mm×50mm的立方体试样；(2)将六块加压板分别与样块的六面紧密连接；(3)将压柱安装于圆柱形槽孔内并与油缸的活塞杆紧密连接；(4)将各压柱及加压板内的流体管道与流体计量泵连接，并检查传感器的工作状态；(5)先对岩样施加法向应力至5MPa，然后同时对另两个方向施加应力至5MPa；(6)利用流体管道对岩样抽真空，达到真空度后，关闭管路，检查密封性；(7)对岩样各个方向施加相应的荷载；(8)测量单向渗透能力时，打开全部流体计量泵，采用较低的流体压力向流体管道注入流体，流体充满流体管道后，关闭其两个方向的阀门，对于测量方向上的流体计量泵工作状态改为一个为注入，另一个为回流；(9)测试完成后，关闭监测***，首先对流体泄压，流体泄压后再缓慢卸载三个方向上的应力；(10)拆卸完成后，各部件归类存放，流体管道采用抽真空方式排除剩余流体然后进行存放。(1) Machining the fractured rock mass to be tested to grow × width × height = 50mm × 50mm × 50mm cube sample; (2) tightly connect the six pressure plates to the six sides of the sample; (3) press the The column is installed in a cylindrical slot and tightly connected to the piston rod of the oil cylinder; (4) Connect the fluid pipes in each pressure column and pressure plate with the fluid metering pump, and check the working status of the sensor; (5) First, Apply normal stress to the rock sample to 5 MPa, and then apply stress to the other two directions to 5 MPa at the same time; (6) use a fluid pipeline to evacuate the rock sample, and after the vacuum is reached, close the pipeline and check the tightness; (7) pair Corresponding loads are applied in all directions of the rock sample; (8) When measuring the one-way permeability, turn on all fluid metering pumps and use a lower fluid pressure to inject fluid into the fluid pipeline. After the fluid fills the fluid pipeline, close the valves in both directions. For the fluid metering pump in the measurement direction, the working state is changed to one for injection and the other for backflow; (9) After the test is completed, the monitoring system is closed, and the fluid is first depressurized. After the fluid is depressurized, the three directions are slowly unloaded. (10) After the disassembly is completed, each Classification storage member, the fluid conduit using vacuum excluded the remaining fluid before storing.
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。The above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims (7)
- 利用岩石真三轴加载测试***开展裂隙岩体各向异性渗流测试试验装置，其特征在于：包括框架(1)、渗流组件和岩样(9)，所述框架(1)内设有多个油缸(2)，所述多个油缸(2)分别设置在框架(1)的左侧、右侧、前侧、后侧和上侧，且油缸(2)的活塞杆上连接有压力传感器(3)，油缸(2)用于固定所述渗流组件的前后左右上五个侧面，所述岩样(9)设置在所述渗流组件内部；An apparatus for testing anisotropic seepage in fractured rock masses using a true triaxial loading test system for rocks is characterized in that it includes a frame (1), a seepage component, and a rock sample (9). The frame (1) is provided with a plurality of An oil cylinder (2), the plurality of oil cylinders (2) are respectively disposed on the left, right, front, rear, and upper sides of the frame (1), and a pressure sensor is connected to a piston rod of the oil cylinder (2) ( 3) The oil cylinder (2) is used to fix the front, rear, left, right, and upper five sides of the seepage component, and the rock sample (9) is arranged inside the seepage component;所述渗流组件包括六块加压板(6)，所述加压板(6)分布于岩样(9)的六个表面，并通过压柱(4)与油缸(2)的活塞杆紧密连接，加压板(6)设有圆柱形槽孔(601)，所述圆柱形槽孔(601)与压柱(4)配合，所述圆柱形槽孔(601)与加压板(6)同轴心，所述加压板(6)与所述压柱(4)内部轴心处还设有流体管道(10)，所述流体管道(10)外延伸与流体计量泵(11)连接。The seepage component includes six pressure plates (6), which are distributed on six surfaces of the rock sample (9), and are tightly connected with the piston rod of the oil cylinder (2) through the pressure column (4). Connected, the pressure plate (6) is provided with a cylindrical slot (601), the cylindrical slot (601) is matched with the pressure column (4), and the cylindrical slot (601) is connected with the pressure plate (6) ) Coaxial, the pressure plate (6) and the pressure column (4) internal axis center is also provided with a fluid pipe (10), the fluid pipe (10) extends outside and a fluid metering pump (11) connection.
- 根据权利要求1所述的利用岩石真三轴加载测试***开展裂隙岩体各向异性渗流测试试验装置，其特征在于：所述的加压板(6)为刚性斜角加压板(6)。The test device for conducting anisotropic seepage test of fractured rock mass using a true triaxial loading test system for rocks according to claim 1, wherein the pressure plate (6) is a rigid oblique pressure plate (6) .
- 根据权利要求1所述的利用岩石真三轴加载测试***开展裂隙岩体各向异性渗流测试试验装置，其特征在于：所述加压板(6)与所述岩样(9)之间设有散流垫层(8)。The test device for performing anisotropic seepage test of fractured rock mass using a true triaxial loading test system for rocks according to claim 1, characterized in that: between the pressure plate (6) and the rock sample (9), There is a diffuser cushion (8).
- 根据权利要求3所述的利用岩石真三轴加载测试***开展裂隙岩体各向异性渗流测试试验装置，其特征在于：所述散流垫层(8)包括散流小孔(803)、内部支撑体(802)和边缘支撑体(801)，所述散流小孔(803)和所述内部支撑体(802)均匀分布于边缘支撑体(801)内部。The test device for conducting anisotropic seepage testing of fractured rock masses using a true triaxial loading test system for rocks according to claim 3, characterized in that the scattered cushion layer (8) includes scattered small holes (803), internal The support body (802) and the edge support body (801), the diffused small holes (803) and the internal support body (802) are evenly distributed inside the edge support body (801).
- 根据权利要求3所述的利用岩石真三轴加载测试***开展裂隙岩体各向异性渗流测试试验装置，其特征在于：所述散流垫层(8)相互交接处填充有橡胶密封条(7)，所述加压板(6)交界处填充有橡胶密封条(7)。The test device for conducting anisotropic seepage testing of fractured rock masses using a true triaxial loading test system for rocks according to claim 3, characterized in that a rubber seal (7) ), The junction of the pressure plate (6) is filled with a rubber sealing strip (7).
- 根据权利要求3所述的利用岩石真三轴加载测试***开展裂隙岩体各向异性渗流测试试验装置，其特征在于：所述框架(1)内部的下侧设于垫块(5)。The test device for conducting anisotropic seepage test of fractured rock mass using a true triaxial rock load test system according to claim 3, characterized in that the lower side inside the frame (1) is provided on a cushion block (5).
- 根据权利要求1-5任意一项所述的利用岩石真三轴加载测试***开展裂隙岩体各向异性渗流测试的方法，其特征在于：包括以下步骤：The method for performing anisotropic seepage test of fractured rock mass by using a true triaxial rock load test system according to any one of claims 1-5, comprising the following steps:(1)将待测裂隙岩体加工成长×宽×高＝50mm×50mm×50mm的立方体试样；(1) Machining the fractured rock mass to be tested to grow × width × height = 50mm × 50mm × 50mm cube sample;(2)将六块加压板分别与样块的六面紧密连接；(2) Tightly connect the six pressure plates to the six sides of the sample;(3)将压柱安装于圆柱形槽孔内并与油缸的活塞杆紧密连接；(3) the pressure column is installed in the cylindrical slot and tightly connected with the piston rod of the oil cylinder;(4)将各压柱及加压板内的流体管道与流体计量泵连接，并检查传感器的工作状态；(4) Connect the fluid pipes in each pressure column and pressure plate with the fluid metering pump, and check the working status of the sensor;(5)先对岩样施加法向应力至5MPa，然后同时对另两个方向施加应力至5MPa；(5) First apply normal stress to the rock sample to 5MPa, and then simultaneously apply stress to the other two directions to 5MPa;(6)利用流体管道对岩样抽真空，达到真空度后，关闭管路，检查密封性；(6) Use the fluid pipeline to evacuate the rock sample. After the vacuum is reached, close the pipeline and check the tightness;(7)对岩样各个方向施加相应的荷载；(7) Apply corresponding loads to the rock sample in all directions;(8)测量单向渗透能力时，打开全部流体计量泵，采用较低的流体压力向流体管道注入流体，流体充满流体管道后，关闭其两个方向的阀门，对于测量方向上的流体计量泵工作状态改为一个为注入，另一个为回流；(8) When measuring the one-way permeability, turn on all fluid metering pumps and inject fluid into the fluid pipeline with a lower fluid pressure. After the fluid fills the fluid pipeline, close the valves in both directions. For fluid metering pumps in the measurement direction, The working state is changed to one for injection and the other for reflow;(9)测试完成后，关闭监测***，首先对流体泄压，流体泄压后再缓慢卸 载三个方向上的应力；(9) After the test is completed, the monitoring system is closed, and the fluid is first decompressed. After the fluid is depressurized, the stress in three directions is slowly unloaded;(10)拆卸完成后，各部件归类存放，流体管道采用抽真空方式排除剩余流体然后进行存放。(10) After the disassembly is completed, the parts are classified and stored, and the fluid pipeline is evacuated to remove the remaining fluid and then stored.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910532740.2A CN110132820A (en) | 2019-06-19 | 2019-06-19 | Carry out the device design and method of the test of crack rock anisotropic seepage using rock true triaxial load test system |
| CN201910532740.2 | 2019-06-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2020048185A2 true WO2020048185A2 (en) | 2020-03-12 |
| WO2020048185A3 WO2020048185A3 (en) | 2020-05-07 |
Family
ID=67577975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2019/092314 WO2020048185A2 (en) | 2019-06-19 | 2019-06-21 | Apparatus design and method for using rock true triaxial loading test system to develop fractured rock mass anisotrophic seepage test |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110132820A (en) |
| WO (1) | WO2020048185A2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113049436A (en) * | 2021-02-08 | 2021-06-29 | 广东中烟工业有限责任公司 | Method for rapidly analyzing consistency of tobacco flavor and fragrance and application thereof |
| CN113109181A (en) * | 2021-04-19 | 2021-07-13 | 东北大学 | High-temperature high-pressure conventional triaxial direct shear fracture seepage coupling test device and use method thereof |
| CN113495048A (en) * | 2021-09-08 | 2021-10-12 | 南通华兴石油仪器有限公司 | High-pressure seepage test device |
| CN114112846A (en) * | 2021-11-19 | 2022-03-01 | 西安石油大学 | Rock permeability measuring device for geology |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113720662A (en) * | 2020-05-25 | 2021-11-30 | 中国石油化工股份有限公司 | Sample structure, sample preparation method and test system for rock three-dimensional permeability test |
| CN111443026B (en) * | 2020-05-26 | 2022-09-13 | 安阳工学院 | True triaxial three-way seepage rock core holder and use method thereof |
| CN114076726B (en) * | 2020-08-17 | 2024-01-30 | 中国石油天然气股份有限公司 | Tight rock crack seepage testing device under three-dimensional stress condition |
| CN111929221B (en) * | 2020-09-11 | 2021-12-28 | 中南大学 | Deep surrounding rock seepage stability analysis device and method under strong power disturbance |
| CN111965091A (en) * | 2020-09-17 | 2020-11-20 | 中南大学 | Rock seepage characteristic testing device and method under thermal shock and dynamic shock coupling |
| CN112630121B (en) * | 2020-11-30 | 2021-10-12 | 中国矿业大学 | Device and method for testing permeability of fractured surrounding rock of deep chamber under stress action |
| CN112362558B8 (en) * | 2020-12-09 | 2021-12-07 | 中国地质大学（北京） | Anisotropic relative permeability testing arrangement |
| CN112816389B (en) * | 2020-12-31 | 2022-06-21 | 中国石油大学(北京) | Multidirectional multilayer full-diameter fracture core seepage simulation device and application thereof |
| CN112858020A (en) * | 2021-01-14 | 2021-05-28 | 中国石油大学(北京) | Rock triaxial confining pressure loading and seepage test device and method |
| CN113109173A (en) * | 2021-03-01 | 2021-07-13 | 绍兴文理学院 | Test device for testing shear strength of frost heaving of rock ice-containing fracture |
| CN114893177B (en) * | 2022-06-21 | 2023-09-26 | 中国矿业大学 | Water injection fracturing shear test system for simulating geothermal system dry-hot rock |
| CN115824824B (en) * | 2023-01-06 | 2023-04-21 | 昆明理工大学 | Rock true triaxial seepage coupling test device and method for deep well water burst simulation |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204514755U (en) * | 2015-03-16 | 2015-07-29 | 中国石油大学(北京) | A kind of hermetically-sealed construction of true triaxial permeability determination cube rock sample |
| CN104677807B (en) * | 2015-04-01 | 2018-05-04 | 河南理工大学 | A kind of large scale soil sample true triaxial seepage characteristic and strength test device |
| CN106896043B (en) * | 2015-12-21 | 2019-11-08 | 中国石油天然气股份有限公司 | Device for simulating crack initiation and evaluating crack seepage under true triaxial stress |
| CN105784559A (en) * | 2016-03-03 | 2016-07-20 | 山东科技大学 | True triaxial fluid-structure interaction coal body seepage test device |
| CN106353197B (en) * | 2016-08-22 | 2023-09-15 | 中国科学院武汉岩土力学研究所 | High-pressure multiphase flow coupling rock true triaxial test system and method thereof |
| CN106370581A (en) * | 2016-09-29 | 2017-02-01 | 中国科学院武汉岩土力学研究所 | True triaxial shear rock mass shearing seepage test device suitable for high seepage pressure, and test method of test device |
| CN108387499B (en) * | 2018-02-08 | 2020-05-22 | 成都理工大学 | Rock underground in-situ multi-parameter anisotropy measuring device |
| CN108918250B (en) * | 2018-06-11 | 2020-07-24 | 安徽理工大学 | True triaxial seepage test device and test method under action of surrounding rock or soil |
| CN210347401U (en) * | 2019-06-19 | 2020-04-17 | 四川大学 | Testing device for developing anisotropic seepage test of fractured rock mass by using true triaxial apparatus |
-
2019
- 2019-06-19 CN CN201910532740.2A patent/CN110132820A/en active Pending
- 2019-06-21 WO PCT/CN2019/092314 patent/WO2020048185A2/en active Application Filing
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113049436A (en) * | 2021-02-08 | 2021-06-29 | 广东中烟工业有限责任公司 | Method for rapidly analyzing consistency of tobacco flavor and fragrance and application thereof |
| CN113109181A (en) * | 2021-04-19 | 2021-07-13 | 东北大学 | High-temperature high-pressure conventional triaxial direct shear fracture seepage coupling test device and use method thereof |
| CN113495048A (en) * | 2021-09-08 | 2021-10-12 | 南通华兴石油仪器有限公司 | High-pressure seepage test device |
| CN113495048B (en) * | 2021-09-08 | 2021-11-16 | 南通华兴石油仪器有限公司 | High-pressure seepage test device |
| CN114112846A (en) * | 2021-11-19 | 2022-03-01 | 西安石油大学 | Rock permeability measuring device for geology |
| CN114112846B (en) * | 2021-11-19 | 2023-09-19 | 西安石油大学 | Rock permeability measuring device for geology |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020048185A3 (en) | 2020-05-07 |
| CN110132820A (en) | 2019-08-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2020048185A2 (en) | Apparatus design and method for using rock true triaxial loading test system to develop fractured rock mass anisotrophic seepage test | |
| CN108386177B (en) | Real-time monitoring experiment system and method for three-dimensional multilayer multi-well fracturing support crack | |
| US11313775B2 (en) | Device and method for evaluating fracture initiation and propagation, and stress sensitivity of propped fracture | |
| CN101387598B (en) | Rock porosity real-time test device under action of Chemosmosis and creep coupling | |
| CN104596909B (en) | Multidimensional adds the close coupling of unloading multiphase porous media to damage Seepage Experiment method | |
| CN108519293B (en) | True triaxial rock shear seepage experimental apparatus | |
| CN111255471B (en) | Multi-working-condition soil pressure balance shield muck workability test simulation test system | |
| CN106353197B (en) | High-pressure multiphase flow coupling rock true triaxial test system and method thereof | |
| CN110987638A (en) | Visual true triaxial hydraulic fracture test device and method | |
| CN204649538U (en) | Rock three axle acoustic emission experiment device under a kind of confined pressure, hole press strip part | |
| CN105334142B (en) | A kind of experimental provision formed for simulating shield mud film | |
| CN107782641B (en) | A kind of loose media osmotic grouting simulation test device | |
| CN104614298B (en) | Constant-volume gas-bearing coal gas-solid coupling physical and mechanical parameter testing device and testing method | |
| CN110687274B (en) | Rock shearing-seepage testing machine and testing method thereof | |
| CN111006952A (en) | Experimental test device and grouting method for reinforcing fractured rock sample through high-pressure permeation grouting | |
| CN110887775A (en) | System and method for testing permeability of triaxial slurry of post-peak fractured rock | |
| CN111157363B (en) | Earth pressure balance shield muck workability and improvement optimization evaluation test method | |
| CN105137039B (en) | Damage evaluation method for multi-scalemass transfer capability of coal rock reservoir gas | |
| WO2024041145A1 (en) | Large-size true triaxial coal-rock mass multi-field seepage coupling system experimental device and method | |
| CN205229006U (en) | Can consider rock fill crack permeability testing arrangement of multifactor influence | |
| CN206420735U (en) | A kind of rock mass true triaxial suitable for hyperosmosis shears seepage flow test device | |
| CN210347401U (en) | Testing device for developing anisotropic seepage test of fractured rock mass by using true triaxial apparatus | |
| CN113030277A (en) | System and method for testing permeability damage and grouting injectability of surrounding rock of water-rich sand layer tunnel | |
| CN112630121B (en) | Device and method for testing permeability of fractured surrounding rock of deep chamber under stress action | |
| CN108717039A (en) | A kind of marginal test analog machine of infiltration fracture grouting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 19858055 Country of ref document: EP Kind code of ref document: A2 |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 19858055 Country of ref document: EP Kind code of ref document: A2 |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 19858055 Country of ref document: EP Kind code of ref document: A2 |