Deep rock mass non-linear mechanics experimental equipment
A mechanical test, nonlinear technology, applied in scientific instruments, strength characteristics, measuring devices, etc., can solve the problems of increasing frequency, aggravating degree, complex disaster mechanism, etc., and achieve the effect of saving space, materials and processing costs.
Active Publication Date: 2009-07-01
何满潮
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Problems solved by technology
With the development of deep rock mass engineering, a series of new characteristic scientific phenomena have occurred. Compared with shallow rock mass engineering, these characteristic scientific phenomena have obviously different characteristics and cannot be explained satisfactorily by traditional continuum mechanics theory. Caused rockburst, water inrush, large-scale roof fall and goaf instability and other catastrophic accidents intensified to a greater extent, increased in frequency, and the mechanism of disasters became more complicated, which has attracted great attention from rock mechanics experts and scholars at home and abroad. In addition, the mechanical state of engineering rock mass under the complex mechanical environment of "three highs and one disturbance" of high ground stress, high ground temperature, high karst water pressure and strong excavation disturbance is very complicated
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[0014] The deep rock mass nonlinear mechanics test equipment of the present invention is composed of a test host 1, a hydraulic power and control device, and a data acquisition and analysis device. The hydraulic power and control device provides the host 1 with nonlinear hydraulic power and control. The data acquisition and analysis device collects and analyzes the data through the sensing parts set on the main engine 1, the hydraulic power and control device. The main engine 1 is composed of the following parts:
[0015] 1) Rigid support structures 4 arranged in three-dimensional orthogonal axial directions, and space for installing hydraulic loading devices 5 and sufficient hydraulic cylinders should be left between the corresponding rigid support structures 4 in each direction;
[0016] 2) Stand on the ground and rigidly fixedly connect the base 7 with the rigid support structure 4;
[0017] It is characterized in that: the main engine 1 also includes three sets of six hydrauli...
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The utility model relates to a deep rock mass nonlinear mechanics test equipment, which belongs to the deep rock mass mechanics test equipment of geotechnical engineering. At present, conventional rock mechanics tests mainly include unidirectional compression test, uniaxial tensile test, three-dimensional compression test, and shear test. The stress of deep rock mass and the mechanical behavior of the action process are closely related to the loading process. These conventional rock mechanics test methods and equipment cannot reflect the unique mechanical behavior of deep rock mass related to the loading process. Therefore, the present invention adopts the scheme that an independent hydraulic power control device is arranged in each three-dimensional direction of the hydraulic loading device, combined with the corresponding test piece fixture, thereby providing a composite stress test for engineering rock mass, especially deep engineering rock mass. Non-linear mechanical test equipment is used to conduct in-depth research on the strength characteristics, constitutive relationship and stress state during construction of engineering rock mass in tension-compression and tension-shear composite states.
Description
Technical field [0001] The invention relates to a test device, belonging to a rock mass mechanics test device, in particular to a deep rock mass nonlinear mechanics test device. Background technique [0002] The rock (fake) triaxial tester, rock direct shear tester and the rock true triaxial tester that can only be used for three-way compression in the field of rock mechanics cannot fully and truly reflect the stress state of engineering rock masses. A comparison of the test functions and technical indicators of representative rock true triaxial testers that can reflect the state of engineering rock forces at present at home and abroad shows that the currently used rock true triaxial testers are indeed for research The new type of rock mass non-linear mechanics tester provides valuable reference, but they cannot be used for composite tests such as tension-compression, tension-shearing, etc., and their operability is poor and the degree of automation is not high. For example: Mote...
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IPC IPC(8): G01N3/00
Inventor 何满潮
Owner 何满潮