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：US20190204191A1

公开(公告)日：2019-07-04

申请号：US16314491

申请日：2018-01-10

Applicant: SHANDONG UNIVERSITY

Inventor： Shucai LI ,  Zhenhao XU ,  Bin GAO ,  Xintong WANG ,  Wenyang WANG ,  Yuchao DU ,  Xin HUANG ,  Dongdong PAN ,  Peng LIN

IPC: G01N1/44 ,  G01V99/00 ,  G01N1/36 ,  B33Y50/02 ,  B33Y10/00 ,  B28B1/14 ,  B28B11/24

CPC classification number: G01N1/44 ,  B28B1/14 ,  B28B11/24 ,  B33Y10/00 ,  B33Y50/02 ,  B33Y70/00 ,  G01N1/28 ,  G01N1/36 ,  G01V99/005

Abstract: A method and device for preparing karst caves based on 3D printing technology. The method includes the following steps: determining size of a sample according to test requirements, constructing a 3D karst cave digital model based on three-dimensional karst cave scanning result, and carrying out 3D printing by using alloy to form primary karst cave sample; preparing rock similar material mixture according to proportioning scheme; pouring mixture into sample mold while burying karst cave model into mixture according to position of a karst cave; curing sample together with mold at room temperature until rock similar materials get hardened, removing mold, curing formed karst cave rock sample at constant temperature and constant humidity and then baking or heating same by electrifying heating wire in alloy to form rock sample with hollow karst cave; and filling hollow karst cave with different fillings to form different type of karst cave sample.

公开(公告)号：US20220355876A1

公开(公告)日：2022-11-10

申请号：US17618745

申请日：2020-12-30

Applicant: SHANDONG UNIVERSITY

Inventor： Zhenhao XU ,  Peng LIN ,  Tengfei YU ,  Huihui XIE ,  Ruiqi SHAO ,  Dongdong PAN ,  Fumin LIU ,  Gang LIU

IPC: B62D57/024 ,  E21D9/00 ,  B62D57/04 ,  G01N21/31 ,  G01N33/24

Abstract: A system and a method identify an adverse geological body in a tunnel based on hyperspectral technology analysis. The system includes a wall-climbing robot, a controller, and a signal processor, wherein the wall-climbing robot is provided with a plurality of groups of hyperspectral light sources and receivers, and the hyperspectral light sources and the receivers are arranged at intervals; the controller is configured to control the operation of the wall-climbing robot to ensure that the wall-climbing robot moves on a tunnel face according to a set spiral path; and the signal processor communicates with the receivers to receive the acquired spectrum data, draws a mineral distribution map of the tunnel face with the path raveled by the wall-climbing robot as a plane, and identifies an adverse geological body by identifying categories and distribution characteristics of the representative minerals.

公开(公告)号：US20210366186A1

公开(公告)日：2021-11-25

申请号：US17254590

申请日：2020-01-21

Applicant: SHANDONG UNIVERSITY

Inventor： Shucai LI ,  Heng SHI ,  Zhenhao XU ,  Peng LIN ,  Fumin LIU ,  Si CHEN ,  Xiaote WANG

IPC: G06T17/05 ,  G06T7/00

Abstract: A TBM-mounted virtual reconstruction system and method for a tunnel surrounding rock structure, the method including: obtaining image information of surrounding rock; receiving the image information of the surrounding rock; transforming and splicing pictures taken at different angles, to form a complete image reflecting the surrounding rock; recognizing and describing a surrounding rock feature of the complete image, and transmitting the annotated image to a virtual reconstruction module; displaying the complete image with a description of the surrounding rock feature by using a virtual reality device, to reflect surrounding rock situations at different angles/different positions. This has the advantages of high equipment automation, not prolonging the construction time, not requiring the sketcher to enter the tunnel, precise surrounding rock feature parameters, and supporting remote control.

公开(公告)号：US20210263062A1

公开(公告)日：2021-08-26

申请号：US17253649

申请日：2020-01-21

Applicant: SHANDONG UNIVERSITY

Inventor： Zhenhao XU ,  Dongdong PAN ,  Yichi ZHANG ,  Peng LIN ,  Huihui XIE ,  Yuchao DU ,  Zehua BU ,  Xiaote WANG

IPC: G01P5/02 ,  G01P13/04

Abstract: An underwater detector includes a sealed enclosure, inside an infrared sensor module is disposed. The module rotates around a spindle at a fixed angular velocity along a horizontal plane. An electronic compass disposed on the module. A bottom of the sealed enclosure connected to an indicator through a rotary shaft, and the indicator rotates around the rotary shaft on the horizontal plane. The indicator includes a head and tail fin. A light source emits a light beam vertically upwards on the tail fin. The module is configured to trigger, when receiving the light beam, the electronic compass records a real-time direction relative to the spindle, which is processed by a processor module to obtain a direction of the water flow. A spring connects between the head and tail fin. The infrared sensor module transmits a moment of receiving the light beam to the processor module to calculate the water flow.

公开(公告)号：US20230144184A1

公开(公告)日：2023-05-11

申请号：US17881158

申请日：2022-08-04

Applicant: SHANDONG UNIVERSITY

Inventor： Zhenhao XU ,  Peng LIN ,  Shucai LI ,  Huihui XIE ,  Heng SHI ,  Zhaoyang WANG ,  Fumin LIU ,  Ruiqi SHAO

IPC: E21B49/00 ,  E21D9/00

CPC classification number: E21B49/003 ,  E21B49/005 ,  E21D9/003 ,  E21B2200/20

Abstract: An advanced geological prediction method and system based on perception while drilling, and relates to advanced geological prediction. The solution includes: acquiring drilling parameters during drilling; obtaining physical and mechanical parameters of tunnel surrounding rocks by inversion based on drilling parameters; acquiring rock slag or powder based on flushing fluid collected during drilling; acquiring geochemical characteristic parameters of rock slag or powder; and obtaining at least one adverse geology recognition result and surrounding rock classification result using a pre-trained deep learning model, and realizing advanced geological prediction. Combined with advanced geological drilling, the solution reflects geological characteristics from changes of physical and mechanical properties of tunnel surrounding rocks and changes of geochemical characteristic parameters. Advanced prediction of geology ahead of a tunnel face is realized by collection and analysis of drilling parameters and flushing fluid during advanced drilling and the fusion of big data and a deep learning algorithm.

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.

公开(公告)号：US20220317021A1

公开(公告)日：2022-10-06

申请号：US17619203

申请日：2020-12-10

Applicant: SHANDONG UNIVERSITY

Inventor： Shucai LI ,  Zhenhao XU ,  Ruiqi SHAO ,  Fumin LIU ,  Huihui XIE ,  Tengfei YU ,  Peng LIN ,  Dongdong PAN

IPC: G01N17/00 ,  G01N1/04 ,  G01N33/24 ,  G06N3/08

Abstract: The present disclosure provides a determining device for the weathering resistant capability of clastic rocks in a tunnel based on feldspar features, which overcomes the shortcomings of current evaluation methods, is easy to operate, can be used to detect the type, content, and crystal structure of feldspar in a rock stratum, and integrates the information by combining a computer deep learning method to determine the weathering resistant capability of clastic rocks containing different types of feldspar in a tunnel, with high accuracy.

公开(公告)号：US20190360334A1

公开(公告)日：2019-11-28

申请号：US16072086

申请日：2018-01-10

Applicant: SHANDONG UNIVERSITY

Inventor： Shucai LI ,  Zhenhao XU ,  Xintong WANG ,  Xin HUANG ,  Chunjin LIN ,  Dongdong PAN ,  Peng LIN

IPC: E21D11/00 ,  E21D11/15

Abstract: An intelligent and flexible steel arch protection device for rockfall and collapse of tunnels, including an arch main body system and a flexible protection system. The arch main body system includes an arched rigid high-strength steel frame and a base. The flexible protection system includes two parallel supporting rods which are oppositely arranged on the steel frame along the circular arc of the arch. Connecting rods are arranged between the two supporting rods at intervals, and the two ends of the connecting rods are fixed to the two supporting rods. The connecting rods are sleeved with guide rods and elastic devices are arranged between the guide rods and the supporting rods. A plurality of rolling shafts vertical to the axial direction of the two-way guide rods and connected with the two-way guide rods are arranged between the adjacent two-way guide rods, and the rolling shafts are sleeved with flexile rollers.

公开(公告)号：US20190206279A1

公开(公告)日：2019-07-04

申请号：US16314658

申请日：2017-12-14

Applicant: SHANDONG UNIVERSITY

Inventor： Shucai LI ,  Zhenhao XU ,  Xintong WANG ,  Peng LIN ,  Xin HUANG ,  Dongdong PAN ,  Wenyang WANG ,  Bin GAO

IPC: G09B19/00

CPC classification number: G09B19/0061 ,  G01N13/04

Abstract: A whole-process simulation experiment system has: a visualized model system with test samples and serving as a bearing device for the simulation of whole-process seepage of filling-type karst; a controllable support system supporting a visualized model box and controlling fluid seepage direction in the box by changing its inclination angle; a servo loading system controlling water pressure in the test process and providing four different loading modes for the box; a high-speed camera system recording water flow and particle motion in a transparent seepage model box in the seepage failure process; a comprehensive data measuring system monitoring and recording the change rules of factors including but not limited to seepage pressure, seepage amount and sand gushing amount in the seepage failure process; and an information analysis and feedback system recording and analyzing the seepage process and the whole seepage failure process in real time to achieve data processing and feedback.