A True Triaxial Test Mechanism for High Pressure Hard Rock and Low Frequency Disturbance
A true triaxial, hard rock technology, applied in the field of high pressure hard rock low frequency disturbance true triaxial testing mechanism, can solve the problem of inability to simulate the unloading process and so on
Active Publication Date: 2021-06-22
NORTHEASTERN UNIV LIAONING
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Problems solved by technology
However, in the existing equipment, the same direction single static load cylinder plus reaction force frame and dynamic small cylinder structure are adopted. This structure can only simulate the disturbance force loading process on the static load foundation, but cannot simulate the static stress foundation. Uninstall process on
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[0014] The invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0015] Such as Figure 1 ~ 3 As shown, a high-pressure hard rock low frequency disturbance triaxial test mechanism includes a true three-axis load assembly, a parallel oil source component, a true three-axis load assembly, and a parallel oil source component, and is mounted on the mechanism base 1; the true three The shaft load assembly includes a rigid pedestal 2, a horizontal rigid frame body 3, a vertical rigid frame body 4, a cast iron damper table 5, a dynamic servo hydraulic actuator 6; when the actuator is powered by a dynamic servo hydraulic actuator 6, It can actually load, but also function to dynamically loaded; the number of dynamic servo hydraulic actuator 6 is six; the cast iron drash 5 level is fixed to the mechanism base 1, rigid pedestal 2 The horizontal card is mounted on the cast iron damper 5, and the vertical rigid frame body 4 ...
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Abstract
A high-pressure hard rock low-frequency disturbance true triaxial test mechanism, a true triaxial loading assembly and a parallel oil source assembly, the rigid frame of the true triaxial loading assembly is equipped with six dynamic servo hydraulic actuators; the parallel oil source assembly includes a fuel tank , pumping station and cooler, the inner cavity of the oil tank is divided into six areas by the partition, marked as ①‑⑥ area; ①‑③ area is connected at the top, ④ and ⑤ are connected at the top, ⑤ and ⑥ are connected at the bottom, ① and ⑥ are connected at the bottom. The top of area ④ is connected, the top of area ② and ⑤ is connected, and the top of area ③ and ⑥ is connected; the pump station includes five hydraulic pumps, four high-flow pumps and one low-flow pump. When it is necessary to conduct 0-20Hz dynamic test At the same time, four high-flow pumps are connected in parallel to meet the flow requirements; No. After cooling down in the cooler, the cold oil flows back to the No. ⑥ area to realize the oil cooling cycle.
Description
Technical field [0001] The present invention belongs to the field of rock mechanics test, and in particular, the present invention relates to a high-pressure hard rock low frequency disturbance tripartix test mechanism. Background technique [0002] In deep rock engineering, the rock mass is in three-way high stress, while the high-stress has provided stress based on the pregnancy and occurrence of deep rock engineering disasters. At the same time, blasting excavation is one of the main methods of construction excavation of deep rock projects due to its high efficiency and high economy. Therefore, in the construction period, the rock mass inevitably be affected by the disturbance wave generated by the blast. When the disturbance wave generated by the blast, as the dissection is attenuated into low-frequency blasting seismic waves, according to the existing literature, the frequency of the blasting seismic wave is in the range of 0.1 to 30 MPa. Although the frequency and amplitude...
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IPC IPC(8): G01N3/313
CPCG01N3/313G01N2203/001G01N2203/0256
Inventor 冯夏庭田冕田军杨成祥张凤鹏
Owner NORTHEASTERN UNIV LIAONING