Zhejiang University

Qingdao University of Technology

China University of Petroleum

Hohai University

China Railway Construction Group Co., Ltd.

China Railway Construction Engineering Group Second Construction Co., Ltd.

Northwedt A&f University

Innovation Research Institute of Shandng Hi-speed Group Co., Ltd.

Institute of Marine Energy Engineering Technology, China Power Engineering Consulting Group Co., Ltd.

Spg Qingdao Port Group Company Limited

Shanghai Electric Wind Power Group Co., Ltd.

Junwei Liu

Xianzhang Ling

Bo Liu

Chao Zhang

Youtong Fang

Ming Fang

Hui Wen

Shengjie Rui

Hongfeng Guang

Haojie Zhang

Ning Jia

Lingyun Feng

Xiuxia Yu

Yi Hong

Zhen Guo

Wei Zhou

Wei Lv

Yujie Li

Teng Wang

Gongfeng Xin

Dayong Li

Yuzhe Dou

Zuodong Liang

Jianqiang Chen

Xiaoyu Bai

Lin Cui

Congbo Zhu

Zhengzhong Wang

Dongliang Xing

Dongsheng Jeng

Zhipeng Wan

Guoxiao Zhao

Jisheng Zhang

Shuiyue Chen

Lingbo Meng

Rongfu Gao

Jianwei Chen

Hua Yang

Taiyan Liu

Enbo Fan

Yutian Wang

Xun Wang

Zhen Xu

Kaiyue Sun

Xu Lv

Changguan Wu

Dongsheng Zheng

Lijian Wu

Sixiang Wang

Jiangqiao Wang

Provided is a combined suction anchor reinforced by a grouting spiral anchor, including a gravity suction anchor, an L-shaped skirt board and a spiral anchor. The gravity suction anchor includes a suction anchor top plate and a wall of a suction anchor barrel body and uses a concrete press block to reach an estimated set position faster during penetration due to self-weight thereof. Thereafter, the skirt board is lifted to outside of the suction anchor through a lug, and a fixing bolt is used to connect the skirt board to the suction anchor. The spiral anchor rod passes through a skirt board hole performed in the skirt board to penetrate into a deep site of seabed, and concrete is grouted through the skirt board hole to a seabed soil area loosened due to penetration of the spiral anchor rod, thereby forming a concrete reinforced area after the concrete solidifies.

Combined suction anchor reinforced by grouting spiral anchor

A fiber pre-dispersing device for fiber reinforced concrete, comprising: a dispersing chamber, a feed inlet is installed on the upper side of a dispersing chamber, a hopper is installed in the feed inlet, a first dispersing device is installed in the dispersing chamber, a discharge outlet is installed at the bottom of the dispersing chamber, and connected with a second dispersing device, grooves are arranged at both sides of dispersing chamber, supporting legs are installed in the grooves. According to the invention, the device has a first dispersing device and a second dispersing device, and the dispersing blocks in the first dispersing device cooperates with the dispersing gears of the roller to preliminarily disperse and stir the fiber raw materials, a second dispersing device; dispersing the preliminary dispersed fiber raw materials, in order to control the fineness of pre-dispersed fiber raw materials, oil cylinders arranged on both sides can push their respective grinding cylinders to adjust the dispersion, thus improving both fiber dispersion effect and using the effect in concrete works.

Fiber pre-dispersing device for fiber reinforced concrete

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.

Pile-side lateral static load device

The present disclosure discloses a testing apparatus for directional simulation of dynamic collision between a deep-sea shell structure and seabed, including: a launching device, a high-pressure water pump device, a high-speed camera, a sensor system, a data collection and control system, etc. This device is installed in a geotechnical centrifuge for experiment, a super-gravity environment is provided to meet requirements of simulation of a deep-sea environment, and a deep-sea high-pressure environment is created through a high-pressure water pump device by superposition. A direction of the launching device is adjusted through a universal rotating shaft to control the shell structure to be launched from a specified direction to collide with soil at a predetermined position. A high-speed camera is used to capture an entire experiment process, and strain and acceleration sensors are used to collect experiment data.

Testing apparatus for directional simulation of dynamic collision between deep-sea shell structure and seabed

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.

P-y curve-based element test device and test method

Growing community of inventors

Qingdao, China

Junwei Liu