Cccc First Harbor Engineering Co., Ltd.

Tianjin Port Engineering Institute Co., Ltd. of Cccc First Harbor Engineering Co., Ltd

Tianjin Port Engineering Quality Testing Center Co., Ltd.

Changjiang Wuhan Waterway Engineering Company

Binbin Xu

Aimin Liu

Yiyong Li

Naishou Zhang

Jinfang Hou

Wei Pan

Changyi Yu

Yonghua Cao

Changxi Yue

Xiaoqiang Kou

Danzhong Liu

Zhijun Chen

Zhichao Dong

Method for predicting a stability of a steel cylinder including: in response to the steel cylinder tilting toward a seaward side at an arbitrary rotation point, obtaining a safety factor for the steel cylinder tilting toward the seaward side by determining an anti-tilt moment and a tilt moment when the steel cylinder is tilted to the seaward side; under a same rotation point, in response to determining that the steel cylinder is rotated toward a land side, determining the safety factor for the steel cylinder tilting toward the land side; taking a smaller safety factor as the safety factor under the rotation point; re-selecting a new rotation point, determining a safety factor corresponding to the new rotation point, and taking a safety factor with a smallest value among all rotation points as a final safety factor; and generating, based on the final safety factor, an anti-tilt instruction.

Methods for predicting a stability of a steel cylinder against tilt

The disclosure discloses a test method for simulating sediment pollutant release under the effect of river channel erosion, which comprises preparing a test device, presetting a water depth and a flow velocity in a test water tank, and calculating a flow rate in the test water tank; paving the sediment in a sediment storage box, and covering an upper surface of the sediment with a water baffle; adding water into the test water tank until a preset water depth, starting a variable speed motor to drive a flow-making propeller to run to make the flow rate reach the required flow rate and keep the flow velocity constant; after the water flow becomes constant, the water baffle retracting to expose the surface of the sediment; opening sampling ports for layered sampling; measuring water; and respectively measuring concentration variation and vertical distribution features of sediment pollutant under different simulated power conditions.

Test methods for simulating sediment pollutant release under effect of river channel erosion

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Tianjin, China

Binbin Xu