Crrc Qingdao Sifang Co., Ltd.

Ocean University of China

China Railway 14th Bureau Group Co., Ltd.

China Railway Siyuan Survey and Design Group Co., Ltd.

China Railway 14th Bureau Group Shield Engineering Coporation Limited

China Railway 14th Bureau Group Corporation Limited

Jian Chen

Chengzhen Wang

Yanmin Li

Shuchen Li

Xin Miao

Shouliang Jiang

Donghua Wu

Fujie Jiang

Tao Liu

Hao Kong

Meng Bu

Rui Fan

Fei Sha

Mingshuai Xi

Shutong Yang

Zhe Zhang

Jicheng Shu

Hongjun Liu

Qiguang Duan

Penglin Li

Gongbiao Yang

Bin Zhi

Feng Xue

Xiuting Su

Mingqing Xiao

Yixiang Li

Xiudong Li

Jiyu Han

Lanying Zhang

Jianyong Zhang

Yankun Wu

Yuhong Diao

Wenhao Sun

Qingsheng Meng

Naiyin Yang

Peng Chen

Haizhen Li

Guodong Zhao

Chengzhen Wagn

Hao Wang

Xutao Sun

Hao Hu

Yinbin Yao

Defu Wang

A synchronous single-liquid grouting slurry, its technology and application for large diameter shield engineering under water-rich, high-pressure and weak soil strata conditions, comprising raw materials: 1050-1200 parts of gold tailing, 420-480 parts of silicate cement clinker, 220-240 parts of fly ash, 45-120 parts of waste clay brick, 65-95 parts of slag, 25-45 parts of limestone tailing, 70-80 parts of steel slag, 30-45 parts of silica fume, 15-22 parts of desulfurized gypsum, and 9-15 parts of quick-setting and early-strength composite additive. The invention controls the d, dand dof the material particles as 35-40, 42-48 and 50-55 μm, respectively. Gold tailing with the particle size of 120-600 μm being used as the fine aggregate, their volume fractions are 40-60%. The slurry production technique, comprising crushing-sieving-superfine ball milling-homogenization-particle size classification-variable speed mixing being developed. The shield tail eight-point grouting technique is being developed for filling.

Synchronous single-liquid grouting slurry, its technology and application for large diameter shield engineering under water-rich, high-pressure and weak soil strata conditions

A detection system for a suspension system of a maglev train, comprising a detection component and a controller. The detection component comprises: a driving unit, a first test coil unit and a second test coil unit. A first test coil group of the first test coil unit corresponds to a gap coil of a to-be-detected suspension sensor, and a second test coil group of the second test coil unit corresponds to a speed coil of the to-be-detected suspension sensor. The controller is communicatively connected with the driving unit and a suspension controller, the driving unit is configured to send a driving signal to at least one of the first test coil unit and the second test coil unit in response to a control command from the controller, and the controller is configured to acquire parameter information fed back by the suspension controller.

Detection system for suspension system of maglev train

A magnetic levitation test system and an electromagnet test method. A vehicle-mounted controller (), an electromagnet controller, and an electromagnet are subjected to joint test by means of the magnetic levitation test system integrated with a vehicle-mounted controller test bed (), an electromagnet controller test bed (), and an electromagnet test bed (). The running condition of a train can be simulated, and the vehicle-mounted controller (), the electromagnet controller, and the electromagnet are subjected to joint test under the simulated running condition of the train. Therefore, the vehicle-mounted controller (), the electromagnet controller, and the electromagnet are subjected to function verification, thereby reducing the fault rate when the vehicle-mounted controller (), the electromagnet controller, and the electromagnet are used at the same time.

Magnetic levitation test system and electromagnet test method

A method and apparatus for controlling stratum deformation in a shield construction process, a non-volatile storage medium, and a processor are disclosed. The method includes: monitoring settlement characteristic parameters in a shield construction process; predicting a settlement proportion according to the settlement characteristic parameters, the settlement proportion being a ratio between a predicted settlement value and a corresponding settlement threshold; and determining construction parameters in the shield construction process according to the settlement proportion. In the method, a settlement proportion is predicted through settlement characteristic parameters monitored in a shield construction process, and then appropriate construction parameters are determined according to the settlement proportion, so that the construction parameters in the shield construction process can be corrected in real time, and the safety and scientificity of stratum deformation control in shield construction can be ensured.

Method and apparatus for controlling stratum deformation in shield construction process, and non-volatile storage medium

The present disclosure provides a shield sealing device and a shield sealing method, a pile wall is arranged at a shield receiving opening, the shield sealing device is mounted on the pile wall, and the shield sealing device comprises: an elastic inner ring, an inner wall of the elastic inner ring adapting to an outer wall of a cutter head of a shield tunneling machine; and a plurality of control units, the plurality of control units being mounted on the pile wall, the plurality of control units being arranged in a circumferential direction of the elastic inner ring at intervals, and a driving end of the control part pressing against an outer side of the elastic inner ring so as to extrude or release the elastic inner ring.

Shield sealing device and shield sealing method

Growing community of inventors

Shandong, China

Jian Chen