公开(公告)号：US20190024460A1

公开(公告)日：2019-01-24

申请号：US15757681

申请日：2016-07-11

Applicant: SHANDONG UNIVERSITY

Inventor： Shucai LI ,  Qingsong ZHANG ,  Guangming PAN ,  Rentai LIU ,  Xiao ZHANG ,  Lei YANG ,  Kai WANG ,  Zhaofeng LI ,  Haitong SUI ,  Teng YANG ,  Chunguo LIU

IPC: E21B10/60 ,  E21B33/13 ,  E02D3/12

Abstract: An anti-collapse jet grouting drill bit with bi-directional rib wings, and a grouting consolidation including: a grouting pump connected to a high-pressure pipeline, which connects to an underground drill rig; an outer flat drill rod, connected with the underground drill rig; 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 which connects to 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 rib wing drill bit, while the underground jet drill rig is rotated by the force of outer flat drill rod. The rotation of the jet slurry and the rib wings, repairs the hole wall by cutting chippings or squeezing the chippings back into the hole wall.

公开(公告)号：US20230384470A1

公开(公告)日：2023-11-30

申请号：US18031693

申请日：2021-10-15

Applicant: SHANDONG UNIVERSITY ,  SHANDONG HI-SPEED GROUP CO., LTD.

Inventor： Peng JIANG ,  Yuxiao REN ,  Qifeng WANG ,  Zhiwu ZUO ,  Xinji XU ,  Kai WANG ,  Lei CHEN ,  Chuanyi MA ,  Shuai CAO ,  Senlin YANG ,  Qingyang WANG ,  Xianglong MENG

IPC: G01V1/28

CPC classification number: G01V1/282 ,  G01V2210/642 ,  G01V2210/66 ,  G01V2210/6222

Abstract: 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.