岷江金马河许筏子段河堤水毁原因及修复建议

发布时间：2018-02-02 02:21

本文关键词： 水毁冲淤平衡弯道环流堤防金马河岷江　出处：《人民长江》2017年S1期 　论文类型：期刊论文

【摘要】：金马河许筏子段"8.15"水毁事故对金马河沿线造成了巨大威胁,引起了社会各界的广泛关注。在事故发生后,结合河道演变学等理论知识及工程实践经验,及时对事故原因进行了深入分析,并提出了修复建议。分析认为:原结构设计合理,加固程序合规;水毁的直接原因是在洪水作用下河堤基础被淘刷导致堤防面板失稳、坍塌,而出现该事故的本质原因是"河道动态变迁中的冲淤不平衡";此外,上游水库的清水下泄也对此产生一定影响。因此,只有在充分认识到河道自然规律特性的基础上,才能保证河流治理工程设计的安全可靠。
[Abstract]:The "8.15" flood disaster in the Xu raft section of the Jinma River has caused great threat along the Jinma River and caused widespread concern from all walks of life. Based on the theoretical knowledge of river evolution and engineering practice, the causes of the accident are analyzed in time, and some suggestions are put forward. The results show that the original structure design is reasonable and the reinforcement procedure is compliant; The direct cause of water destruction is that the foundation of river embankment is scoured and scoured under the action of flood, which leads to the instability and collapse of the embankment face slab, and the essential reason of the accident is "the imbalance of erosion and siltation in the dynamic changes of the river course". In addition, the release of clear water from the upstream reservoir also has a certain effect on this. Therefore, only on the basis of fully recognizing the characteristics of the natural law of the river course can the design of the river regulation project be guaranteed to be safe and reliable.
【作者单位】：四川大学水利水电学院;四川大学水力学与山区河流开发保护国家重点实验室;
【基金】：四川省2014年科技支撑项目(2014FZ0043)
【分类号】：TV871
【正文快照】： 随着水利工程技术的发展,挡水、蓄水、引水、疏水等建筑物纵横交错,虽然我们已基本掌握了这些建筑物本身的结构安全设计,但是河道本身的演变特性却十分复杂并充满不确定性,我们还未充分认识。自然界的河流几乎都是弯曲的,河流自身的特性决定了其几何形状,其几何形状又是长年水

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