China University of Mining and Technology

University of Science and Technology Beijing

Renshu Yang

Liyun Yang

Xinmin Ma

Chenxi Ding

Bin Xu

Ning Liu

Shuo Zhang

Yong Wang

Feixiang Lu

Xuejun Sun

Hang Zhang

Fei Ma

Desheng Wang

Wen Chen

Min Gong

Gang Niu

Huaquan Zhang

Liang Ma

Weiqiang Chen

Zhidong Guo

Yongping Shao

Jinjun Liao

Hechao Zhu

Chengxiao Li

Yiyin Hu

Yanbing Wang

Zhouqi Bao

Zhaoran Zhang

Chaoyang Sun

Chenglong Xiao

Siyuan Huang

Huidong Xu

Zhengbai Chen

Qingping Chai

Jinjing Zuo

Man Yao

Yuh J Chao

Yiqiang Kang

Shuai You

Bingyu Liu

Qunshan Yang

Songlin He

Donghui Man

A method for simulating construction of a shaft boring machine, a device, a medium, and a product are provided The method includes: constructing a numerical model for construction simulation by using a finite element numerical simulation platform; configuring interaction simulation parameters, boundary conditions and an initial state of the numerical model for construction simulation; simulating a boring process of the boring machine that advances axially segment by segment with a predetermined advancing distance in the parameter-configured numerical model for construction simulation; at the end of each segment of advancement, constructing a support structure model on an exposed surrounding rock contact surface of a current advancement segment based on a current support scheme; and at the end of each segment of advancement, simulating a support effect of the support structure based on the support structure model to obtain a simulation result.

Method for simulating construction of shaft boring machine, device, medium, and product

Disclosed is a full-face shaft boring machine, a boring system and a boring method. The full-face shaft boring machine includes a cutterhead structure provided with an outer tapered surface structure protruding in a boring direction. The outer tapered surface structure surrounds an outer circumferential side of the rotation center of the cutterhead structure, and a radial cross section of the outer tapered surface structure gradually decreases in the boring direction; at least one receiving port for rock slag to pass through is formed at the taper top of the outer tapered surface structure and runs through the cutterhead structure in the boring direction; and a slag discharging assembly for discharging the rock slag is arranged on a side of the cutterhead structure away from the boring direction.

Full-face shaft boring machine, boring system, and boring method

An efficient cut blasting method for medium-length holes in deep high-stress rock roadway is disclosed. The method may comprise steps of carrying out a crustal stress blasting test on the free face of the in-situ rock roadway to be excavated, and obtaining a distribution state of cracks under a synergistic action of crustal stress, explosion stress waves and clamping force of surrounding rock of a rock mass in the stratum where the in-situ rock roadway to be excavated is located; arranging a cutting hole net on the free face of the rock roadway to be excavated according to a distribution state of the cracks; performing cut blasting based on the cutting hole net.

Efficient cut blasting method for medium-length holes in deep high-stress rock roadway based on crustal stress induction effect

The embodiment of the present invention discloses an underwater explosion pressure test experiment system and method. The invention including: container and drug pack are used to simulate underwater explosion scenes. Projector projects scattered speckles on the water surface. Two high-speed cameras collect images of the first water surface fluctuation. The strain at a certain point in the first water surface is calculated according to the scattered speckles. The K value of the corresponding explosive is calculated from the elastic modulus of the strain and water, and based on the calculated K value, the curve of the explosion pressure at different points in the water with the distance from the explosion source is calculated according to the formula, and the explosion pressure at any point in the water is determined according to the curve. The invention is suitable for use in an underwater explosion pressure measurement experiment.

Underwater explosion pressure test experiment system and method

An efficient blasting method for similar cutting in a rock tunnel is provided, which relates to the technical field of rock tunneling. The method includes the following steps: drilling: drilling central holes, lower cutting holes, upper cutting holes, auxiliary holes and peripheral holes in a cross section area for tunnel construction; filling explosives: filling explosives into the central holes, the lower cutting holes, the upper cutting holes, the auxiliary holes and the peripheral holes; and blasting: blasting following blast holes in turn to complete full-face one-time blasting in a millisecond delay blasting mode. The method is applicable for construction scenes of drilling and blasting methods.

Efficient blasting method for similar cutting in rock tunnel

Growing community of inventors

Beijing, China

Renshu Yang