Sichuan University

Haoyu Mao

Zhuang Li

Yuepeng Sun

Peiwei Xiao

Yong Xia

Nuwen Xu

Biao Li

Feng Gao

Jun Liu

Zhiqiang Sun

Rong Yang

Bei Jiang

Xinchao Ding

Zhi Li

Guo Liao

Sen Yang

A single-pulse experimentation device based on a Hopkinson pressure bar and an experimentation method include an experimentation assembly and a pulse controlling assembly, the experimentation assembly includes a power generating mechanism, an incident bar and a transmission bar, a space between the incident bar and the transmission bar is for accommodating a sample, and the sample is for bearing and transferring a dynamic-loading compressional wave transmitted by the incident bar; the pulse controlling assembly includes: a stretching assembly that is internally hollow and is connected to the transmission bar; and an elastic assembly and a gear regulating mechanism that are located inside the stretching assembly, and are connected to corresponding positions of the stretching assembly, respectively; wherein the gear regulating mechanism is configured for driving the stretching assembly to switch between a first position state and a second position state.

Single-pulse experimentation device based on hopkinson pressure bar and experimentation method

An automatic detection function-integrated detection apparatus includes a drill rod and an elastic water storage bag; two sides of the drill rod are a head region and a tail region, respectively; an interior of the drill rod has a water supply channel, a side wall of the drill rod is provided with a first channel, and a first valve is disposed in the first channel. The automatic detection function-integrated detection apparatus and method for the water flowing fractured zone may complete the detection of the water flowing fractured zone while drilling, and thus the labor intensity of workers may be reduced.

Automatic detection function-integrated detection apparatus and method for water flowing fractured zone

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Chengdu, China

Haoyu Mao