公开(公告)号：US20220334035A1

公开(公告)日：2022-10-20

申请号：US17640915

申请日：2020-01-21

Applicant: SHANDONG UNIVERSITY

Inventor： Shucai LI ,  Peng LIN ,  Heng SHI ,  Zhenhao XU ,  Youbo LIU ,  Tengfei YU ,  Zehua BU ,  Xiaote WANG

IPC: G01N3/08 ,  G01N29/07 ,  G01N3/42

Abstract: A predicting system and method for the uniaxial compressive strength of rock include a point loading strength test module, a longitudinal wave velocity test module, a rock rebound value test module and a strength prediction module, wherein the longitudinal wave velocity test module performs longitudinal wave velocity tests on the rock, and transfers the longitudinal wave velocity of the rock to the strength prediction module; the rock rebound test module performs rebound test on the rock, and transfers the rebound value of the rock to the strength prediction module; the point loading strength test module performs image acquisition on a fracture surface of the rock after being loaded and fractured by the point loading test, and calculates the area of the fracture surface; and the strength prediction module outputs a uniaxial compressive strength prediction result of the rock according to the received information and a preset prediction model.

公开(公告)号：US20220205971A1

公开(公告)日：2022-06-30

申请号：US17604094

申请日：2020-01-21

Applicant: SHANDONG UNIVERSITY

Inventor： Zhenhao XU ,  Xin HUANG ,  Youbo LIU ,  Huihui XIE ,  Tengfei YU ,  Yanhui GE ,  Peng LIN ,  Dongdong PAN

IPC: G01N33/24 ,  G09B23/40

Abstract: An integrated test device and method for filling karst cave deposition and tunnel intermittent water and mud inrush disasters. The device includes a mixing tank, water tank, water collection tank and plurality of depositing tanks, wherein mixing tank outlet is connected to one end of a pipe, the other end of the pipe extends to one end of the water tank, the plurality of depositing tanks are arranged underwater tank at intervals, the water collection tank is arranged at the water tank's other end, and a detachable baffle is arranged in the water tank and in front of each depositing tank. The deposition and consolidation of filling media and water and mud inrush can be simulated and observed through the setting and cooperation of the plurality of depositing tanks, different working conditions can be simulated by changing the flow rate, sample concentration, particle gradation, depositing height and displacement.

公开(公告)号：US20220412867A1

公开(公告)日：2022-12-29

申请号：US17777801

申请日：2020-01-21

Applicant: SHANDONG UNIVERSITY

Inventor： Zhenhao XU ,  Huihui XIE ,  Shucai LI ,  Peng LIN ,  Xin HUANG ,  Zhaoyang WANG ,  Dongdong PAN ,  Youbo LIU

IPC: G01N15/02

Abstract: A TBM-mounted system and method for quickly predicting compressive strength of rocks based on rock mineral composition and fabric characteristics. The system is mounted on gripper shoe's side surface of an open-type TBM, and includes a protective device, hydraulic device, servo motor, detection device, control system and a data comprehensive analysis platform. The hydraulic device is mounted on the protective device's side wall, for controlling movement of detection device horizontally. The servo motor controls rotation of detection device. The detection device collects a variety of geological parameters of target surrounding rock affecting compressive strength of rock and providing basic data for compressive strength prediction of rock. The control system controls work of hydraulic device, servo motor and each detection device. The data comprehensive analysis platform is connected to each detection instrument, receives geological parameters collected, processes and analyzes each parameter, and gives a prediction of compressive strength of rock.