Shandong University

Tsinghua University

Shandong Hi-Speed Group Co., Ltd.

Shandong Provincial Communications Planning and Design Institute

Kai Wang

Chuanyi Ma

Wei Liu

Shucai Li

Xinji Xu

Depeng Jin

Li Su

Lei Chen

Zhaofeng Li

Lei Yang

Yuxiao Ren

Qingsong Zhang

Rentai Liu

Tao Mu

Weiling Wu

Zhen Tu

Pengfei Zhou

Qingyang Wang

Senlin Yang

Xiao Zhang

Qiyun Wei

Guohua Han

Chunguo Liu

Teng Yang

Guangming Pan

Qifeng Wang

Zhiwu Zuo

Shuai Cao

Xianglong Meng

Haitong Sui

A method for three-dimensional velocity geological modeling with structures and velocities randomly arranged, including determining base points in three-dimensional space, building equation according to the base points to determine planar layered model, complicating a tilt layer of planar layered model, and building a fold layer model of a surface in three-dimensional space; building three-dimensional fault folded model based on the three-dimensional surface fold layer model combined with a fault plane of a random reference point and displacement of each point in a global coordinate system; building a velocity model containing a salt body based on the three-dimensional fault folded model, and simulating salt body intrusion in a geological body of a certain depth; and performing a random velocity amplitude to realize three-dimensional velocity modeling according to the layered type which has been set and according to the set velocity range and the velocity difference range between each layer of geology.

Method for three-dimensional velocity geological modeling with structures and velocities randomly arranged

An anti-collapse grouting consolidation system including: a grouting pump; an outer flat drill rod; a drill rig that clamps the outer flat drill rod; a sealing device, sheathed on the outer flat drill rod at the orifice of a drill hole, ensuring the outer flat drill rod is sealed with the orifice of the drill hole; and a jet grouting drill bit with bi-directional rib wings. The grouting pump jets slurry into the drill hole in a static osmotic manner through the jet grouting drill bit. A method of using an anti-collapse grouting consolidation system includes, among other things, injecting quick-setting slurry; sealing an orifice hole of the drill hole by an orifice sealing device; and keeping an anti-collapse jet grouting drill bit with bi-directional rib wings repeatedly moving up and down and rotating at a repair segment to repair the repair segment.

Anti-collapse jet grouting drill bit with bi-directional rib wings, grouting consolidation system and method

A method and device for judging intercity transportation modes based on mobile phone data solves the problems of difficult data acquisition and low data processing efficiency in the existing solutions. The method includes: obtaining the trajectory of each user from the mobile phone data; extracting an intercity traffic sub-trajectory in the trajectory of each user; and judging the transportation mode of the intercity traffic sub-trajectory. The solution has the advantages of easy data acquisition, high data processing efficiency and capability of achieving long-term monitoring.

Method and device for judging intercity transportation mode based on mobile phone data

Growing community of inventors

Jinan, China

Kai Wang