Chinese Academy of Sciences

Institute of Geology and Geophysics

Fengjiao Tang

Yu Zou

Shengwen Qi

Bowen Zheng

Songfeng Guo

Yongchao Li

Xiaokun Hou

Jinxuan Li

Xin Wang

Hui Zhou

Manchao He

Zhaobin Zhang

Xiaolin Huang

Yue Yang

Guangming Luo

Haijun Zhao

Ning Liang

Lei Xue

Zhiqing Li

Xueliang Wang

Zhendong Cui

Lina Ma

Lihui Li

Zan Wang

Libo Jiang

Chunling Liu

Shuaihua Song

Yanjun Shang

Qingze Hao

Shishu Zhang

Ming Cai

Feng Xiong

Yidong Xiao

Weiluan Wen

Jianing Cong

Yonghua Yu

Xinyi Guo

Wei Cheng

Naiwu He

Huyue Zhan

Xiao Lu

Provided are a method and device for quantitatively characterizing development positions of geological disasters in slopes, and an electronic device. The method includes: acquiring a slope boundary of a target slope, and constructing a triangle matching the slope boundary, three vertices of the triangle are A, B and C respectively; acquiring, based on the triangle, slope terrain points within a range of triangle; assigning preset attribute information to each slope terrain point Dof the slope terrain points, the preset attribute information of each slope terrain point Dat least includes an angle attribute of each slope terrain point Dand a distance ratio attribute of each slope terrain point D; and screening out disaster points from the slope terrain points, and plotting and displaying, based on angle attributes and distance ratio attributes of the disaster points, the disaster points in a preset area in a polar coordinate system.

Method and device for quantitatively characterizing development positions of geological disasters in slopes, and electronic device

An adjustable device for railway to cross active faults is provided to fix a rail and a sleeper, including: a fastener mounting base, disposed between the rail and sleeper; clamping pipes, disposed between the fastener mounting base and the sleeper, the sleeper is provided with a through groove, and the clamping pipes are detachably fixed inside the through groove; control parts, disposed on an inner wall of the clamping pipes, each of the control parts is configured to detect lateral pressures between the fastener mounting base and corresponding one of the clamping pipes, thereby to separate the corresponding one of the clamping pipes from the through groove, the device ensures that the rail will not produce bending deformations after the lateral dislocation of the bottom layer during earthquake events, and ensure that a train or rail repair vehicle can pass at a low speed after earthquake.

Adjustable device for railway to cross active faults

A variable angle loading testing machine is provided, which may include a bottom plate and a base fixedly connected to the bottom plate. A rock-sample accommodating cavity is formed in the base, and a rectangle-shaped sample is suitable for being placed into the rock-sample accommodating cavity. A side of the base is fixedly connected to two arc-shaped tension beams arranged in parallel, and a variable angle loading mechanism is slidably connected between the two arc-shaped tension beams. Through-holes are formed on the base, and an output end of the variable angle loading mechanism abuts against the rectangle-shaped sample through one of the through-holes. Loading and unloading of a stress with variable direction and magnitude under excavation disturbance can be simulated, which is of great significance for understanding mechanical behaviors of rock-soil mass under excavation disturbance.

Variable angle loading testing machine

Growing community of inventors

Beijing, China

Fengjiao Tang