Shear displacement measuring system used in cooperation with rock core holder
A technology of core holder and shear displacement, which is applied in the direction of applying stable shear force to test the strength of materials, measuring devices, instruments, etc., and can solve the problems that the fracture displacement cannot be measured, the fracture displacement changes, and the rock is not good. , to achieve the effect of simple structure, good sealing and convenient operation
Pending Publication Date: 2021-12-10
HEFEI UNIV OF TECH
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] Conventional core holders can support the measurement of basic experimental data, but the fracture displacement of the rock under pressure cannot be measured, and the displacement of the fracture will change under high pressure, which is not feasible for the calculation of rock-related parameters under high pressure
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0019] The embodiments of the present invention are described in detail below. This embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following implementation example.
[0020] see Figure 1 to Figure 3 , this embodiment discloses a shear displacement measurement system used in conjunction with a core holder, including a core holder, a displacement transmission part and a displacement measurement part, and the core holder includes a built-in installation cavity The housing, the installation cavity of the housing is provided with a rock containment component, the annular gap between the rock containment component and the inner wall of the installation cavity of the shell forms a ring pressure gap 1, and the rock containment component includes a casing 2, an upper plug 3, a lower Th...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a shear displacement measuring system used in cooperation with a rock core holder. Theshear displacement measuring system comprises the rock core holder, a displacement transmission part and a displacement measuring part; the rock core holder comprises a shell, a rock accommodating assembly is arranged in a mounting cavity of the shell, and an annular pressure gap is formed between the rock accommodating assembly and the shell; the rock accommodating assembly comprises a sleeve, an upper plug and a lower plug, the bottom of a rock accommodating cavity formed by an inner cavity of the sleeve is plugged through the lower plug, the displacement transmission part is arranged in a hole channel of the upper plug, the displacement measurement part comprises a plurality of displacement measurement units, and the displacement transmission part comprises a plurality of independent displacement transmission blocks. The rock sample is divided into a plurality of independent rock blocks by fractures, the top ends of the plurality of displacement transmission blocks abut against the displacement centres of the plurality of displacement measurement units in a one-to-one correspondence manner, and the bottom ends of the plurality of displacement transmission blocks abut against the top ends of the plurality of independent rock blocks in a one-to-one correspondence manner. The system has the advantage that the measurement of the rock fracture change under high ring pressure is realized.
Description
technical field [0001] The invention relates to the technical field of rock mechanics detection devices, in particular to a shear displacement measurement system used in conjunction with a core holder. Background technique [0002] The engineering problems of underground construction and maintenance, and slope stability monitoring are often accompanied by the disturbance and change of pores and micro-cracks. The development of underground projects will cause changes in the strain distribution of cracks, resulting in changes in the displacement of cracks. As well as dislocation, this series of physical changes may cause changes in permeability, resulting in subsidence, collapse and other geological disasters. It is urgent to design a device that can measure the shear displacement changes of fractured rocks under high ring pressure under pressure, and realize the data analysis of fracture changes, so as to fully grasp the law of fracture displacement caused by underground engi...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): G01N3/24G01N3/02G01B21/02
CPCG01N3/24G01N3/02G01B21/02
Inventor 马海春冯培超钱家忠王京平
Owner HEFEI UNIV OF TECH