公开(公告)号：US11702936B2

公开(公告)日：2023-07-18

申请号：US18014504

申请日：2021-07-01

申请人： Qingdao University of Technology ,  Qingdao Metro Line 6 Co., Ltd. ,  CHN Energy Baoshen Railway Group Co., Ltd

发明人： Zhongnian Yang ,  Zhengyi Xu ,  Quanwei Liu ,  Xianzhang Ling ,  Cheng Huang ,  Xiu Liu ,  Linsheng Liu ,  Xixi Huang

IPC分类号： E21D20/02 ,  F16L21/08

CPC分类号： E21D20/028 ,  F16L21/08

摘要： A grouting device for high-coagulability grouting materialsincludes a grouting pipe, a connector and a self-sealing pipe head, wherein one end of the connector is connected with a grouting pump through the grouting pipe, the other end of the connector is connected with the self-sealing pipe head through the grouting pipe, and the grouting pipe is connected with the connector and the self-sealing pipe head in a fixed and sealed mode. The grouting device is easy to install, features reliable connection between the grouting pipe and the connector and the self-sealing pipe head, and can be reused. Because the inner diameter of the connector is consistent with the inner diameter of the grouting pipe, and a slurry outlet on an end cap of the self-sealing pipe head is a circular slurry outlet, pressure loss in the grouting process is effectively reduced, and the grouting effect is good.

公开(公告)号：US11740167B2

公开(公告)日：2023-08-29

申请号：US17435959

申请日：2020-06-22

申请人： QINGDAO UNIVERSITY OF TECHNOLOGY

发明人： Xianzhang Ling ,  Lei Su ,  Yingying Zhao ,  Liang Tang ,  Ruxiang Zhao

IPC分类号： G01N3/18 ,  G01N3/12 ,  G01N23/20 ,  G01N29/04 ,  G01N33/24

CPC分类号： G01N3/18 ,  G01N3/12 ,  G01N23/20 ,  G01N29/04 ,  G01N33/24

摘要： The present disclosure discloses a temperature-controllable large-size geotechnique true triaxial multi-field coupling test system and a test method. The system includes a host loading mechanism, a deformable large-size soil box, an independent three-dimensional loading unit, a refrigeration, water and salt supplementation unit, and a soil-water-ice-salt change monitoring unit. The deformable large-size soil box is arranged on the host loading mechanism. In combination with the special structural design, monitoring is carried out by dividing a large-size soil test sample into environmental soil and a core soil region to eliminate the size effect of the test. The solution can simulate a three-dimensional stress state of the soil test sample in a three-dimensional open system. In consideration of the evolution of hydrothermal salt and three-dimensional migration of temperature, water, salt, etc. between the soil and the environment, temperature-water-salt-stress-strain multi-field coupling is realized.

公开(公告)号：US11608609B1

公开(公告)日：2023-03-21

申请号：US17944235

申请日：2022-09-14

申请人： Qingdao University of Technology ,  SPG Qingdao Port Group Company Limited ,  Hohai University ,  China University of Petroleum ,  Institute of Marine Energy Engineering Technology, China Power Engineering Consulting Group CO., LTD ,  Innovation Research Institute of Shandong Hi-Speed Group Co., Ltd. ,  Zhejiang University ,  Northwest A&F University ,  China Railway Construction Engineering Group Second Construction Co., Ltd. ,  China Railway Construction Group Co., Ltd.

发明人： Junwei Liu ,  Dongsheng Jeng ,  Xianzhang Ling ,  Dongliang Xing ,  Jisheng Zhang ,  Teng Wang ,  Dayong Li ,  Bo Liu ,  Gongfeng Xin ,  Zhen Guo ,  Yi Hong ,  Zhengzhong Wang ,  Xiuxia Yu ,  Lingyun Feng ,  Lin Cui ,  Zuodong Liang ,  Hongfeng Guang ,  Chao Zhang ,  Ning Jia ,  Guoxiao Zhao ,  Rongfu Gao ,  Ming Fang

IPC分类号： E02D7/20 ,  B66F3/44 ,  E02D33/00

摘要： A pile-side lateral static load device includes a jack system, a liftable jack cart, a loading jack fixing system, and a loading system. The jack system includes a jack body. The jack system is installed on the liftable jack cart through the loading jack fixing system. The loading system is installed on the loading jack fixing system, and the loading system includes counter-pressure loading systems and counter-tension loading systems. The pile-side lateral static load device has a simple structure, is convenient to install and operate, and can complete lateral loading and in-situ tests under different pile diameters, different tonnages and different precisions, so as to facilitate a simulation test of in-situ lateral loading of a pile.

公开(公告)号：US11193865B1

公开(公告)日：2021-12-07

申请号：US17241097

申请日：2021-04-27

申请人： QINGDAO UNIVERSITY OF TECHNOLOGY

发明人： Junwei Liu ,  Dongsheng Zheng ,  Xiuxia Yu ,  Xianzhang Ling ,  Lingyun Feng ,  Shuiyue Chen ,  Zhipeng Wan ,  Jianwei Chen ,  Ning Jia ,  Hongfeng Guang ,  Kaiyue Sun ,  Xu Lv ,  Changguan Wu ,  Wei Lv

IPC分类号： G01N3/16 ,  E02D33/00

摘要： A p-y curve-based element test device is provided. An upper support plate is located above a lower support plate and is fixedly connected to the lower support plate through truss supports symmetrically arranged on left and right sides, and at least one truss support is arranged on each side. A sample container, a servo consolidation mechanism and multidirectional servo actuators are connected to the truss support on the two sides. The servo consolidation mechanism is located above the sample container, and the multidirectional servo actuators are arranged above the servo consolidation mechanism and below the sample container, respectively. Identical loads are synchronously applied from above and below to realize horizontal movement of a pile element to simulate the load condition of a soil body, and a pressure is applied by a servo consolidation device to simulate the stress condition of the soil body at a certain depth.