Shandong University

Shaanxi Xitan Geological Equipment

China University of Mining and Technology

Chunjin Lin

Shucai Li

Bin Liu

Zhaofeng Li

Lei Yang

Hanpeng Wang

Mengtian Li

Zhenhao Xu

Xinji Xu

Lichao Nie

Shaoshuai Shi

Jie Song

Weimin Yang

Jianbo Zhao

Zhaohui Dong

Shuaixun Luo

Wei Chen

Jian Min Jiang

Peng Lin

Hongtao Zhu

Liping Li

Peng Wang

Dongdong Pan

Xin Huang

Huaifeng Sun

Zhengyu Liu

Zongqing Zhou

Xintong Wang

Jian Zhang

Chuanwu Wang

Zhiqiang Li

Maoxin Su

Yiguo Xue

Yimin Liu

Lei Xu

Jihong Ye

Daohong Qiu

Li Guan

Bo Zhang

Tingyu Hao

Chenglu Gao

Rui Li

Huimin Gong

Chengshun Shang

Yang Geng

Songsong Bai

Hao Zhou

Mengmeng Hu

Biao Li

The present invention provides a whole-space drilling-grouting integrated device, comprising: a traveling mechanism comprising a drilling-grouting mechanism of which one side is provided with a rod-changing robotic arm and comprising an adjusting mechanism; the adjusting mechanism is connected to a platform that connected to a supporting platform through a drilling-moving mechanism; an output shaft of a power mechanism fixed on the supporting platform is detachably connected with a drilling tool; a first drilling tool clamping mechanism arranged at tail end of the platform is connected to arc-shaped guide rail arranged on the platform in a sliding way and is further connected to rotating driving member of the platform so as to realize rotation around an axis of output shaft of the power mechanism; and, a second drilling tool clamping mechanism fixedly connected to tail end of the platform where far away from power head.

Whole-space drilling-grouting integrated device

The present invention provides a multi-pump linkage grouting operating system, including a slurry storage unit including a plurality of slurry storage tanks and a grouting unit including a plurality of grouting pumps; wherein, an inlet of each grouting pump is connected to main slurry inlet pipe, the main slurry inlet pipe is connected to a plurality of branch slurry inlet pipes connected to an outlet of corresponding slurry storage tank; grouting on-off valves are mounted on the branch slurry inlet pipes, each branch slurry inlet pipe is further connected to one end of a cleaning pipe, a connection position between the cleaning pipe and the branch slurry inlet pipe is located downstream of the grouting on-off valve on the branch slurry inlet pipe, the other end of the cleaning pipe is connected to a water tank, and a cleaning on-off valve is mounted on the cleaning pipe.

Multi-pump linkage grouting operating system

A three-dimensional imaging method and system for surface comprehensive geophysical prospecting, the method includes: acquiring detection data of a plurality of two-dimensional profiles of a surface detection site; forming two-dimensional profile resistivity data by geophysical inversion of the detection data; performing three-dimensional coordinate conversion on the two-dimensional profile resistivity data to obtain resistivity data of a three-dimensional coordinate system; and converting the resistivity data of the three-dimensional coordinate system into a three-dimensional model by using a Kriging interpolation method.

Three-dimensional imaging method and system for surface comprehensive geophysical prospecting

A red mud utilization method based on co-processing of industrial exhaust gas, sewage treatment and an environment-friendly and high-performance civil functional material, belongs to the technical field of environmental science and cementitious material preparation, and relates to a preparation process of a solid waste-based cementitious material, specifically including the steps: preparing an environment-friendly and high-performance red mud-based civil functional material by using slag obtained after sewage treatment with red mud and other solid wastes in physical and chemical activation and high-temperature calcination methods. The compressive strength of a solid waste-based cementitious material prepared by using the method can reach 29 MPa, the leaching quantity (lower than 3.0 ppm) of toxic elements such as heavy metals is far lower than the national standard requirement, and a solid waste-based cementitious material with great performance can be prepared.

Red mud utilization method based on co-processing of industrial exhaust gas, sewage treatment and environment-friendly and high performance civil functional material

A discrete element method contact model building method includes: selecting a filling body in a disaster-causing structure to obtain a change rule of cumulative loss of the filling body; performing test simulation, and determining a relation function of each group of corresponding mesoscopic mechanical parameters in each time period and mesoscopic parameters of a DEM contact model representing a change rule of macroscopical parameters of the filling body; embedding each mesoscopic parameter relation function into an existing particle contact model, performing test simulation, and updating a fracture failure criterion of the contact model according to a corresponding relation of macro-mesoscopic strength during model failure; and based on a seepage failure indoor test, building a seepage failure discrete element calculation model, and simulating the seepage failure process of a rock and soil mass by using the obtained particle contact model and the fracture criterion of the particle contact model.

Discrete element method (DEM) contact model building method for reflecting weakening of seepage on rock and soil mass strength

A multi-dimensional space load and fire test system for a tunnel structure, which includes a multi-point loading self-balancing reaction force system having a rigid platform, two furnace body side-sealing apparatuses () and a model assembly and transport apparatus () for transporting and situating a tunnel model are on a track on the rigid platform (), the two furnace body side-sealing apparatuses () are respectively used for sealing two end openings of the tunnel model, a tower-type combustion vehicle can be placed within an inner cavity of the tunnel model, a plurality of sets of evenly distributed self-adaptive loading apparatuses () used for exerting loading forces on an outer wall of the tunnel model are connected between two reaction force frames () of the multi-point loading self-balancing reaction force system. The present system is able to perform loading on tunnel models having different cross section shapes, can be adapted to testing requirements of tunnel structures having different cross section shapes, and with respect to tunnel structure fire testing in particular, a camera of the present system has a large imaging angle of view, the present invention has good heat resistance, possesses both terminal imaging and distance measurement, and can amply satisfy a use requirement for the high temperature environment of a tunnel fire.

Multi-dimensional space load and fire test system for tunnel structure, and method for implementing same

A horizontal jet-mechanical combined rock breaking test device and method. The device includes a horizontal base. One end of the horizontal base is provided with a multi-mode cutter head. A jet-mechanical combined cutter is provided on the multi-mode cutter head. The other end of the horizontal base is provided with a surrounding rock stress simulation bin for loading a rock sample. The multi-mode cutter head is connected to a driving mechanism, and the multi-mode cutter head is configured to advance and rotate horizontally along the horizontal base under the action of the driving mechanism, so that the jet-mechanical combined cutter is capable of acting on the rock sample.

Horizontal jet-mechanical combined rock breaking test device and method

A rock breaking seismic source and active source three-dimensional seismic combined detection system uses a tunnel boring machine for three-dimensional seismic combined detection by active seismic source and rock breaking seismic source methods. Long-distance advanced prediction and position recognition of a geological anomalous body are realized using the active source seismic method. Machine construction is adjusted and optimized according to the detection result; real-time short-distance accurate prediction of the body is realized using the cutter head rock breaking vibration having weak energy but containing a high proportion of transverse wave components as seismic sources and adopting an unconventional rock breaking seismic source seism recording and handling method. An area surrounding rock quality to be excavated is represented and assessed. A comprehensive judgment is made to the geological condition in front of the working face with the results of active source and rock breaking seismic source three-dimensional seismic advanced detection.

Rock breaking seismic source and active source three-dimensional seismic combined advanced detection system using tunnel boring machine

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.

Intelligent and flexible steel arch protection device for rockfall and collapse of tunnels

Disclosed is an advanced detector system and method using a forward three-dimensional induced polarization method for a TBM (Tunnel Boring Machine) construction tunnel. A narrow detection space of a full-face excavated tunnel is fully used, a controller controls doors of a source and measuring electrode compartment and a shielding electrode compartment to open and controls a corresponding hydraulic delivery device to automatically and quickly arrange a source electrode system, a measuring electrode system and a shielding electrode system. Under the action of a shielding current system, tomography detection supply current is directed ahead of the working face. Three-dimensional geologic information can be obtained, and the relationship between an induced polarization half-decay time difference and a water quantity can be used to quantitatively forecast the water quantity of a water-bearing body, and meanwhile, the half-decay time difference parameter has a high capacity of distinguishing free water from bound water.

Advanced detector system and method using forward three-dimensional induced polarization method for TBM construction tunnel

Growing community of inventors

Jinan, China

Chunjin Lin