公开(公告)号：US20250058973A1

公开(公告)日：2025-02-20

申请号：US18506403

申请日：2023-11-10

Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY

Inventor： Liyuan YU ,  Bowen HU ,  Rui SUN ,  Xianzhen MI ,  Shuchen LI ,  Haijian SU ,  Wei LI ,  Chao WEI ,  Tao ZHANG

IPC: B65G5/00

Abstract: The disclosure belongs to the field of underground energy storage, and particularly provides a large-deformation underground energy storage device, including a body. The body includes a rubber sealing layer, a negative Poisson's ratio material layer, a large deformation concrete layer and rock layers sequentially nested from inside to outside; an internal storage space is formed in the rubber sealing layer, the negative Poisson's ratio material layer includes a plurality of negative Poisson's ratio material elements connected in sequence, and the large deformation concrete layer is cast from deformable concrete.

公开(公告)号：US20250013800A1

公开(公告)日：2025-01-09

申请号：US18762538

申请日：2024-07-02

Applicant: China University of Mining and Technology-Beijing

Inventor： Jiansong Wu ,  Jitao Cai ,  Xinge Han ,  Chen Fan ,  Jian Li ,  Feng Kong

IPC: G06F30/18 ,  G06F111/10

Abstract: The present application provides a digital twin utility tunnel system based on a reduced-order simulation model and a real-time calibration algorithm. The system includes a big data aggregation unit and a real-time simulation deduction unit. The big data aggregation unit is configured to collect static attribute data and real-time dynamic data. The real-time dynamic data includes fixed monitoring data and mobile monitoring data. The fixed monitoring data is collected by gas sensors fixedly installed in the utility tunnel, and the mobile monitoring data is collected by mobile sensors in the utility tunnel. The real-time simulation deduction unit includes a forward prediction module and an inversion calibration module. The forward prediction module is configured to perform dimension reduction simplification and rapid prediction, and the inversion calibration module is configured to perform real-time calibration on a predicted physical field, correct the predicted physical field, and perform inversion on hazard sources.

公开(公告)号：US20240418574A1

公开(公告)日：2024-12-19

申请号：US18563877

申请日：2022-12-23

Applicant: China University of Mining and Technology

Inventor： Kuangyu LI ,  Han GUO ,  Huaichun ZHOU ,  Bo YU ,  Xianyong PENG ,  Zhuoran JING ,  Kun YANG

IPC: G01J5/48 ,  G01J5/53

Abstract: The present invention provides a multi-wavelength spectral thermometry based on mobile narrow-band window and optimization and belongs to the field of thermal radiation temperature detection. A continuous spectrum of a thermal radiation object is collected by a spectrometer; the spectrum of the thermal radiation object is denoised, windowed and standardized; the whole detection wavelength range is traversed within an appropriate narrow-band window; through comparison with windowed and standardized black-body radiation spectra at different temperatures in a corresponding spectral window, the temperature and emissivity distribution of the thermal radiation object is calculated with high accuracy without depending on emissivity model estimation, and high universality and noise resistance are achieved.

公开(公告)号：US12169147B2

公开(公告)日：2024-12-17

申请号：US18039993

申请日：2021-11-11

Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY, BEIJING

Inventor： Yang Ju ,  Jiangtao Zheng ,  Zhangyu Ren ,  Wenbo Gong

IPC: G01L1/24 ,  G01N3/12 ,  G01N15/08

Abstract: Disclosed are a testing system and method under fluid-solid coupling effects. A dynamic stress field during fluid flow, deformation of a porous rock framework, real-time evolution of the stress field and deformation of a fluid-solid interface under fluid-solid coupling effects can be obtained, on the basis of a collected photo-elastic stripe image and a surface deformation image. A stress field of a solid framework and fluid in porous rock, and a strain field of the solid framework and the fluid-solid interface under fluid-solid coupling effects can be visually and quantitatively displayed by means of a display device.

公开(公告)号：US12168931B2

公开(公告)日：2024-12-17

申请号：US17922128

申请日：2021-04-30

Applicant: China University Of Mining And Technology, Beijing

Inventor： Jiong Wang ,  Wenfei Li ,  Zimin Ma ,  Guangyuan Yu

IPC: E21C41/00 ,  E21C41/18 ,  E21F1/00 ,  E21F16/00

Abstract: A mining method is provided without coal pillars with roof-cutting and roadway retaining. This includes, comprising: constructing a gas drainage roadway and eliminating outbursts in a working face transport gate area and track gate area on opposite sides of a first mining working face; constructing various components with an air return roadway. Another end is communicated with the gas drainage roadway by the first process roadway, one end of the working face track gate is communicated with the air return roadway, the other end is communicated with the gas drainage roadway. A ventilation system is formed. This makes full use of the existing gas drainage roadway to meet the roadway layout requirements using the 110 construction method, increasing the use function of the roadway and increasing the reuse rate of the roadway, reducing the roadway engineering quantity before production, shortening the construction period and reduce the cost.

公开(公告)号：US20240402034A1

公开(公告)日：2024-12-05

申请号：US18291501

申请日：2023-06-21

Applicant: CHINA COAL TECHNOLOGY & ENGINEERING GROUP SHENYANG ENGINEERING COMPANY ,  CHINA UNIVERSITY OF MINING AND TECHNOLOGY

Inventor： Zhenping SUN ,  Xiao LIU ,  Yingji FANG ,  Yanan GAO ,  Feng DOU

IPC: G01M3/22 ,  F17D5/02

Abstract: A device for real-time detection of pipeline gas leakage and leakage prevention includes a gas pipeline, wherein a gas detector is arranged at an outer part of the gas pipeline, a telescopic cylinder is also electrically connected to an outer side of the gas detector, a plurality of three-way elliptical pipes are mounted at a middle segment part of the gas pipeline, a limiting cylinder is fixedly mounted at a bottom port of each three-way elliptical pipe, a separating mechanism is arranged between each limiting cylinder and the three-way elliptical pipe, and a pneumatic mechanism is arranged at a bottom of the limiting cylinder. After detecting gas leakage, the gas detector immediately triggers the telescopic cylinder through an electrical signal, and the pneumatic mechanism triggers the separating mechanism to separate and seal the three-way elliptical pipe when being driven by the telescopic cylinder.

公开(公告)号：US20240378337A1

公开(公告)日：2024-11-14

申请号：US18293864

申请日：2023-03-27

Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY

Inventor： Wei YANG ,  Zening WEI ,  Yingte FENG ,  Wenxiao ZHANG ,  Wenyuan WANG

IPC: G06F30/17 ,  G06T17/05

Abstract: The present invention relates to a mine stress field twin modeling assimilation system for a full space-time mining process, and a method, and belongs to the technical field of digital twin assimilation inversion. The system comprises a digital model unit, a physical model unit and a human-computer interaction unit. The digital model unit is provided with an equal-proportion three-dimensional geological model, a mine historical assimilation model and a trusted digital twin model; the physical model unit covers a stratum and a mining face tunnel system, and the human-computer interaction unit has an information database and a software simulation monitoring interface. By means of a software establishment model, assimilation technology optimization model operation and a digital twin technology interconnection physical entity and virtual model, the present invention is able to construct a mine in-situ stress field twin model aimed at a full space-time mining process and better approximating reality, and is likewise able to use real physical scene monitoring data to perform simulated pre-mining in a virtual spatial model, aimed at grasping the space-time evolution laws of stress fields in the mining process, and providing guidance for safe mining production.

公开(公告)号：US12123697B1

公开(公告)日：2024-10-22

申请号：US18433513

申请日：2024-02-06

Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY

Inventor： Xiaohua Ding ,  Zhongao Yang ,  Zhouquan Liao

IPC: F42D1/08 ,  F42D1/22 ,  F42D3/04

CPC classification number: F42D1/08 ,  F42D1/22 ,  F42D3/04

Abstract: The present invention discloses a charging device and method for open pit mine rock perforation blasting within the mining technology domain. The charging device includes a charging barrel with a detachable cover plate at the top and a bottom opening, housing a tray for explosive material. A jacking mechanism on the tray's side surface aids in positioning. A flexible interval gasbag separates the explosive and tray, with a wire passing hole at its center connected to an air pump via an inflation tube. A pressing plate and lifting mechanism in the cover plate facilitate lifting within the barrel. Additionally, a moving mechanism on the blast hole's top relocates the charging barrel. This innovation addresses challenges related to the cumbersome positioning and filling of existing powder explosives in open pit mine rock perforation blasting.

公开(公告)号：US20240159150A1

公开(公告)日：2024-05-16

申请号：US18235899

申请日：2023-08-21

Applicant: China University of Mining and Technology ,  2th Exploration Team of Jiangsu Coal Geological

Inventor： Wanghua SUI ,  Chang ZHOU ,  Shichong YUAN ,  Yuan HANG ,  Shuangcheng TANG ,  Baolei XIE

IPC: E21F17/18

CPC classification number: E21F17/18

Abstract: Provided is an evaluation method of ductility of a grouted rock mass for advanced renovation of a water-sand mixture inrush prevention area including following steps: first, acquiring a spatial distribution law of cracks in overlying strata, and establishing a three-dimensional geological model and a grouted rock mass unit geological model; calculating rock mass quality standard of the target rock strata; performing compression tests on multiple groups of grouted consolidated bodies, and calculating an average value of strain softening indexes of the multiple groups of grouted consolidated bodies; selecting multiple groups of grouted target rock strata, and calculating an average value of unstable fracture ductility of the multiple groups of grouted target rock strata; finally, acquiring a permeability strength of the grouted rock mass, and calculating and grading an evaluation index of ductility of the grouted rock mass,

公开(公告)号：US11930463B1

公开(公告)日：2024-03-12

申请号：US18260532

申请日：2022-09-30

Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY ,  XUZHOU KERUI MINING TECHNOLOGY CO., LTD.

Inventor： Gongbo Zhou ,  Chuansheng Zhang ,  Fan Jiang ,  Lianfeng Han ,  Shudong Wang ,  Xin Liu ,  Duifang Gu ,  Tao Wang ,  Chuansong Wang ,  Libing Wang ,  Niansheng Liu ,  Fuxing Shi ,  Dongrun Liu ,  Lizheng Li ,  Zhencai Zhu

IPC: H04W56/00 ,  H04B10/27 ,  H04W64/00 ,  H04W84/22

CPC classification number: H04W56/001 ,  H04B10/27 ,  H04W64/00 ,  H04W84/22

Abstract: The present disclosure discloses a time service and positioning network system for an underground chain-shaped large space in a coal mine. The system adopts a base station-level network internal time synchronization method which takes an optical fiber time service as a main part and takes a satellite time service as an auxiliary part to construct a time service and positioning network system with an unified time within the ad-hoc network base stations, based on the ad-hoc network base stations linearly arranged in the underground chain-shaped large space in the coal mine. Through the network construction, the network stabilization and the network application, the system unifies the time reference of the base station-level network and improves the positioning accuracy of the network application by utilization of the base station-level network internal time synchronization method. The system integrates the time service and positioning network system suitable for the underground coal mine and expands the network applicability based on an existing underground communication ring network.