【摘要】 根据中山市中心城区历史涝点的分布及几次暴雨涝灾的情况,对中心城区雨水管网进行排水能力评估,并通过建立中心城区水动力模型系统分析中心城区河涌、水闸、泵站工程的排水能力,对中心城区内涝风险进行评估,总结出中心城区排涝不畅的主要原因是挤占河涌用地和覆盖河涌造成河涌排涝能力不足。针对此原因提出治涝对策(整治排涝河涌,在河口处适当建设泵站),并通过水动力模型对整治效果进行检验。更多还原

【Abstract】 Based on the past waterlogging area distribution and rainstorm flood disasters of urban center in Zhongshan City,assessment of urban center rainwater pipe network was proposed in this paper.Drainage capacity analysis of river,sluice and pump was conducted by using a hydrodynamic model of Zhongshan urban center,and an assessment of urban center flood risk was performed. The main cause of the poor drainage of waterlogging in the central urban area was the insufficient capacity of flood drainage caused by overlying the land. The waterlogging strategies including remediation of the river and construction of pumping station at the estuary were pointed out and the regulation effect was verified by the hydrodynamic model.更多还原