Patents by Inventor Xinji Xu
Xinji Xu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230384473Abstract: A method and system for advanced detection and optimization of tunnel resistivity based on depth resolution.Type: ApplicationFiled: October 15, 2021Publication date: November 30, 2023Applicants: SHANDONG UNIVERSITY, SHANDONG HI-SPEED GROUP CO., LTD.Inventors: Lichao NIE, Lei CHEN, Yong ZHOU, Chuan WANG, Xinji XU, Jian LI, Zhengyu LIU, Ning ZHANG, Peng BAI, Yongheng ZHANG, Dongdong XIE
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Publication number: 20230384470Abstract: 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.Type: ApplicationFiled: October 15, 2021Publication date: November 30, 2023Applicants: SHANDONG UNIVERSITY, SHANDONG HI-SPEED GROUP CO., LTD.Inventors: Peng JIANG, Yuxiao REN, Qifeng WANG, Zhiwu ZUO, Xinji XU, Kai WANG, Lei CHEN, Chuanyi MA, Shuai CAO, Senlin YANG, Qingyang WANG, Xianglong MENG
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Multi-scale unsupervised seismic velocity inversion method based on autoencoder for observation data
Patent number: 11828894Abstract: A multi-scale unsupervised seismic velocity inversion method based on an autoencoder for observation data. Large-scale information is extracted by the autoencoder, which is used for guiding an inversion network to complete the recovery of different-scale features in a velocity model, thereby reducing the non-linearity degree of inversion. A trained encoder part is embedded into the network to complete the extraction of seismic observation data information at the front end, so it can better analyze the information contained in seismic data, the mapping relationship between the data and velocity model is established better, then the inversion method is unsupervised, and location codes are added to the observation data to assist the network in perceiving the layout form of an observation system, which facilitates practical engineering application. Thus a relatively accurate inversion result of the seismic velocity model when no real geological model serves as a network training label can be achieved.Type: GrantFiled: December 14, 2021Date of Patent: November 28, 2023Assignee: SHANDONG UNIVERSITYInventors: Bin Liu, Yuxiao Ren, Peng Jiang, Senlin Yang, Qingyang Wang, Xinji Xu, Duo Li -
MULTI-SCALE UNSUPERVISED SEISMIC VELOCITY INVERSION METHOD BASED ON AUTOENCODER FOR OBSERVATION DATA
Publication number: 20230305177Abstract: A multi-scale unsupervised seismic velocity inversion method based on an autoencoder for observation data. Large-scale information is extracted by the autoencoder, which is used for guiding an inversion network to complete the recovery of different-scale features in a velocity model, thereby reducing the non-linearity degree of inversion. A trained encoder part is embedded into the network to complete the extraction of seismic observation data information at the front end, so it can better analyze the information contained in seismic data, the mapping relationship between the data and velocity model is established better, then the inversion method is unsupervised, and location codes are added to the observation data to assist the network in perceiving the layout form of an observation system, which facilitates practical engineering application. Thus a relatively accurate inversion result of the seismic velocity model when no real geological model serves as a network training label can be achieved.Type: ApplicationFiled: December 14, 2021Publication date: September 28, 2023Applicant: SHANDONG UNIVERSITYInventors: Bin LIU, Yuxiao REN, Peng JIANG, Senlin YANG, Qingyang WANG, Xinji XU, Duo LI -
Patent number: 11644590Abstract: A multi-wavefield seismic detection method and system based on construction noise of a shield machine. Multi-wavefield seismic information such as a body wave and a surface wave formed during propagation of a seismic wave generated by excitation in a stratum is obtained by using noise information caused by the construction of a shield machine as a seismic source, a stratum velocity model along a tunnel is constructed through joint inversion, and reflection wave information or the like is used for migration imaging, to eventually implement relatively accurate detection of a geological condition in front of a tunnel face of shield construction.Type: GrantFiled: July 13, 2020Date of Patent: May 9, 2023Assignee: SHANDONG UNIVERSITYInventors: Shucai Li, Bin Liu, Xinji Xu, Lei Chen, Jiansen Wang, Chao Fu, Yuxiao Ren
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Patent number: 11640007Abstract: The present invention discloses a system and method for phased array sound wave advanced geological exploration for a shield tunneling machine. The system includes a phased array sound wave emitting and receiving apparatus, a probe automatic telescopic apparatus, an automatic protection and cleaning apparatus, and a signal processing and imaging system. Sonic probes are installed on a side wall of a main spoke, opposite to a rotation direction, of a cutterhead of the shield tunneling machine, on the basis of automatic detection of a telescopic state and a contact state, sonic array probes are enabled to make contact with a tunnel face by a hydraulic push rod, a focus sound wave is emitted by using a phased array emitting technology, and a reflected wave signal with front geological information reflected from the front of the tunnel face is received.Type: GrantFiled: December 8, 2020Date of Patent: May 2, 2023Assignee: SHANDONG UNIVERSITYInventors: Shucai Li, Bin Liu, Xinji Xu, Lei Chen, Chao Fu, Lei Hao
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Patent number: 11555912Abstract: An automatic wall climbing type radar photoelectric robot system for damages of a bridge and tunnel structure, mainly including a control terminal, a wall climbing robot and a server. The wall climbing robot generates a reverse thrust by rotor systems, moves flexibly against the surface of a rough bridge and tunnel structure by adopting an omnidirectional wheel technology, and during inspection by the wall climbing robot, bridges and tunnels do not need to be closed, and the traffic is not affected. Bridges and tunnels can divide into different working regions only by arranging a plurality of UWB base stations, charging and data receiving devices on the bridge and tunnel structure by means of UWB localization, laser SLAM and IMU navigation technologies, a plurality of wall climbing robots supported to work at the same time, automatic path planning and automatic obstacle avoidance realized, and unattended regular automatic patrolling can be realized.Type: GrantFiled: April 29, 2019Date of Patent: January 17, 2023Assignee: SHANDONG UNIVERSITYInventors: Bin Liu, Yao Li, Fengkai Zhang, Lichao Nie, Jing Wang, Zhengfang Wang, Zhengyu Liu, Xinji Xu
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Publication number: 20220390635Abstract: The present invention discloses a system and method for phased array sound wave advanced geological exploration for a shield tunneling machine. The system includes a phased array sound wave emitting and receiving apparatus, a probe automatic telescopic apparatus, an automatic protection and cleaning apparatus, and a signal processing and imaging system. Sonic probes are installed on a side wall of a main spoke, opposite to a rotation direction, of a cutterhead of the shield tunneling machine, on the basis of automatic detection of a telescopic state and a contact state, sonic array probes are enabled to make contact with a tunnel face by a hydraulic push rod, a focus sound wave is emitted by using a phased array emitting technology, and a reflected wave signal with front geological information reflected from the front of the tunnel face is received.Type: ApplicationFiled: December 8, 2020Publication date: December 8, 2022Applicant: SHANDONG UNIVERSITYInventors: Shucai LI, Bin LIU, Xinji XU, Lei CHEN, Chao FU, Lei HAO
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Publication number: 20220326403Abstract: A multi-wavefield seismic detection method and system based on construction noise of a shield machine. Multi-wavefield seismic information such as a body wave and a surface wave formed during propagation of a seismic wave generated by excitation in a stratum is obtained by using noise information caused by the construction of a shield machine as a seismic source, a stratum velocity model along a tunnel is constructed through joint inversion, and reflection wave information or the like is used for migration imaging, to eventually implement relatively accurate detection of a geological condition in front of a tunnel face of shield construction.Type: ApplicationFiled: July 13, 2020Publication date: October 13, 2022Applicant: SHANDONG UNIVERSITYInventors: Shucai LI, Bin LIU, Xinji XU, Lei CHEN, Jiansen WANG, Chao FU, Yuxiao REN
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Publication number: 20200142052Abstract: An automatic wall climbing type radar photoelectric robot system for damages of a bridge and tunnel structure, mainly including a control terminal, a wall climbing robot and a server. The wall climbing robot generates a reverse thrust by rotor systems, moves flexibly against the surface of a rough bridge and tunnel structure by adopting an omnidirectional wheel technology, and during inspection by the wall climbing robot, bridges and tunnels do not need to be closed, and the traffic is not affected. Bridges and tunnels can divide into different working regions only by arranging a plurality of UWB base stations, charging and data receiving devices on the bridge and tunnel structure by means of UWB localization, laser SLAM and IMU navigation technologies, a plurality of wall climbing robots supported to work at the same time, automatic path planning and automatic obstacle avoidance realized, and unattended regular automatic patrolling can be realized.Type: ApplicationFiled: April 29, 2019Publication date: May 7, 2020Applicant: SHANDONG UNIVERSITYInventors: Bin LIU, Yao LI, Fengkai ZHANG, Lichao NIE, Jing WANG, Zhengfang WANG, Zhengyu LIU, Xinji XU
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Patent number: 10519771Abstract: 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.Type: GrantFiled: May 7, 2015Date of Patent: December 31, 2019Assignee: SHANGDONG UNIVERSITYInventors: Shucai Li, Bin Liu, Xinji Xu, Jie Song, Lichao Nie, Lei Yang, Chunjin Lin, Weimin Yang
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Patent number: 9989671Abstract: The present invention presents a tunnel construction large-scale integrated geophysical advanced detection model test device. The model test device includes a tunnel surrounding rock, a main tunnel model, a model test case, a water-containing geological structure device, a numerical control automated construction device and a main control chamber. The model test device is a large-scale integrated geophysical advanced detection model test device meeting the detection using a seismic wave method, an electromagnetic method and a direct-current electric method.Type: GrantFiled: January 26, 2014Date of Patent: June 5, 2018Assignee: SHANDONG UNIVERSITYInventors: Shucai Li, Bin Liu, Lichao Nie, Lei Xu, Xiangxue Ma, Chuanwu Wang, Zhengyu Liu, Jie Song, Huaifeng Sun, Xinji Xu, Yao Li
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Publication number: 20170218757Abstract: 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.Type: ApplicationFiled: May 7, 2015Publication date: August 3, 2017Applicant: SHANDONG UNIVERSITYInventors: Shucai LI, Bin LIU, Xinji XU, Jie SONG, Lichao NIE, Lei YANG, Chunjin LIN
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Patent number: 9500077Abstract: The present invention presents a comprehensive advanced geological detection system carried on a tunnel boring machine.Type: GrantFiled: January 26, 2014Date of Patent: November 22, 2016Assignee: SHANDONG UNIVERSITYInventors: Shucai Li, Bin Liu, Lichao Nie, Yao Li, Xiangxue Ma, Jie Song, Zhengyu Liu, Huaifeng Sun, Chuanwu Wang, Xinji Xu, Lei Xu
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Publication number: 20150338549Abstract: The present invention discloses a tunnel construction large-scale integrated geophysical advanced detection model test device. The model test device includes a tunnel surrounding rock, a main tunnel model, a model test case, a water-containing geological structure device, a numerical control automated construction device and a main control chamber. The model test device is a large-scale integrated geophysical advanced detection model test device meeting the detection using a seismic wave method, an electromagnetic method and a direct-current electric method.Type: ApplicationFiled: January 26, 2014Publication date: November 26, 2015Inventors: Shucai LI, Bin LIU, Lichao NIE, Lei XU, Xiangxue MA, Chuanwu WANG, Zhengyu Liu, Jie SONG, Huaifeng SUN, Xinji XU, Yao LI
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Publication number: 20150233242Abstract: The present invention presents a comprehensive advanced geological detection system carried on a tunnel boring machine.Type: ApplicationFiled: January 26, 2014Publication date: August 20, 2015Inventors: Shucai Li, Bin Liu, Lichao Nie, Yao Li, Xiangxue Ma, Jie Song, Zhengyu Liu, Huaifeng Sun, Chuanwu Wang, Xinji Xu, Lei Xu
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Patent number: 9091779Abstract: 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.Type: GrantFiled: January 17, 2013Date of Patent: July 28, 2015Assignee: SHANDONG UNIVERSITYInventors: Shucai Li, Bin Liu, Zhengyu Liu, Lichao Nie, Jie Song, Huaifeng Sun, Chunjin Lin, Chuanwu Wang, Xinji Xu, Lei Xu, Tingyu Hao, Hao Zhou
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Publication number: 20140333308Abstract: 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.Type: ApplicationFiled: January 17, 2013Publication date: November 13, 2014Inventors: Shucai Li, Bin Liu, Zhengyu Liu, Lichao Nie, Chao Song, Huaifeng Sun, Chunjin Lin, Chuanwu Wang, Xinji Xu, Lei Xu, Tingyu Hao, Hao Zhou