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DEBRIS-FLOW PREVENTION METHOD BY CONTROLLING DEBRIS-FLOW MAGNITUDE AND AVOIDING TO BLOCK MAIN RIVER

机译:控制泥石流超大幅度避免主河段的泥石流防治方法

摘要

The invention discloses a debris-flow prevention method by controlling debris-flow magnitude and avoiding to block main river. This method first adopts the drainage works for delivering debris flow in corporation with the transport of the main river; if the drained sediment cannot be transported by the main river, the blocking works are adopted; and if the sediment still exceeds the delivering capacity, the deposit stopping works are adopted. Compared with the prior art, this invention makes full use of the main river's transport capacity, gives priority to dredging and also reasonably distributes the sediment and deploys the engineering system, so as to realize the safe discharge of debris flow, and avoid the secondary disaster of “barrier lake” caused by the blocking of main river due to excessive discharge of debris flow and fully guarantee the safety of mountain towns, major projects and infrastructure located at the mouth of debris flow gully.
机译:本发明公开了一种通过控制泥石流大小,避免阻塞主河的泥石流防治方法。该方法首先采用排水工程,与主要河流一起输送泥石流。如果排干的泥沙不能由主要河流输送,则采用阻塞工程;如果沉淀物仍超过输送能力,则采用沉淀停止工程。与现有技术相比,本发明充分利用了主要河流的运输能力,优先疏dr,合理分配泥沙,部署工程系统,实现了泥石流的安全排放,避免了二次灾害。泥石流过多排放造成的主河阻塞而形成的“障碍湖”,充分保证了泥石流口处的山区城镇,重大工程和基础设施的安全。

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