Non-explosive simulated explosive roll dynamic load loading device and test method thereof

Abstract

The invention discloses a non-explosive simulated explosive roll dynamic load loading device, and further discloses a test method of the simulated explosive roll dynamic load loading device. Underground engineering excavation blasting dynamic load loading is simulated, and an underground engineering mine blasting method construction simulation process is realized. The novel non-explosive simulatedexplosive roll dynamic load loading device is characterized in that saturated saline water is loaded into a PC pipe to serve as a high-pressure explosion source, rubber caps are used for plugging thetwo sides of the PC pipe, and an internal seismic source electric spark discharge head needle tip is used for discharging. According to the novel non-explosive simulated explosive roll dynamic load loading device, the explosive effect of a columnar explosive is well simulated, the sizes of explosive rolls are adjustable, and coupling loading blasting and non-coupling loading blasting can be realized; the explosion energy is controllable, and requirements of large-size underground model test study can be met; the saturated saline water used as an explosive source is safe and reliable; and internal portable seismic source electric spark tip instant discharging is adopted as the way of blasting, time is controllable, and the operation is convenient.

Description

technical field [0001] The invention relates to the technical field of an underground engineering comprehensive model test system, and more specifically relates to a non-explosive simulant charge rolling load loading device. Background technique [0002] With the rapid development of underground rail transit, underground engineering often adopts the method of blasting excavation for construction. Due to the complexity of underground geotechnical engineering problems, it is difficult to obtain satisfactory answers by theoretical research methods or computer simulation methods, so underground physical model test technology is often used to study underground geotechnical problems. Due to the extremely destructive and dangerous nature of real explosives, detonating materials, and detonating processes, the blasting experiments and practices in domestic colleges and universities have encountered great difficulties. [0003] At present, small-scale butane liquefaction tanks are of...

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Problems solved by technology

Due to the extremely destructive and dangerous nature of real explosives, detonating equipment and detonation process, the blasting experiments and practice links of domestic colleges and universities have encountered great difficulties.

[0003] At present, small-scale butane liquefaction tanks are often used as high-pressure explosion sources in China, and the blasting is simulated by heating and detonating them by binding heating rods outside them. However, the detonation energy is limited and uncontrollable, which cannot meet the test needs of large underground engineering models. ; The detonation is carried out by external heating, the detonation time is uncontrollable, and the test operation is more complicated; butane is a flammable and explosive liquid, which is dangerous

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