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| Finite element analysis of structure of sluice chamber in Xianxing irrigation area |
| XU Shuqin, YUE Jing*, WANG Yachao, GAO Kairu, GUO Xiaoting, LI Zhongyu |
| College of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin, Heilongjiang 150030, China |
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Abstract Taking the newly-built flood discharge gate of the canal head reconstruction project in Xianxing irrigation district of Heilongjiang Province as the research object, the overall model of the gate chamber structure and foundation was established using the three-dimensional finite element software ANSYS, and The finite element analysis of the sluice chamber structure was carried out through four working conditions: the completion period, the irrigation period, the check flood level, and the frost heave condition, and the stress and displacement values of the sluice chamber structure were obtained. The distribution law of stress and displacement of the lock chamber structure with different load combinations under four working conditions was compared and analyzed, The results show that: The displacement change of the lock chamber structure is mainly based on settlement. The settlement of the four working conditions is generally small. The maximum vertical displacement is 12.069 mm and the minimum vertical displacement value is 1.553 mm. The value does not exceed the allowable value of the specification, and all appear in the frost heave condition, the maximum tensile stress value is 1.21 MPa, and the maximum compressive stress is 1.25 MPa, which meets the design requirements and appears in frost heave condition and check flood level condition respectively. In the frost heave condition, stress concentration occurs on the top of the bottom plate on the upstream side of the side pier. It is necessary to increase the reinforcement ratio and increase the overall stability of the sluice structure. The structure of the flood discharge gate has good working performance and can ensure safe and stable operation.
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Received: 07 November 2019
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