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本文在论述四川省汉源县万工集镇滑坡~碎屑流基本特征及其致灾原因的基础上,通过地灾宏观判断、地表地质测绘、勘探试验、野外排查、定量分析,得出灾后沿沟堆积的松散物质可能再次引发大规模泥石流以及二蛮山古堆积体的失稳可能形成的碎屑流,从而对万工集镇形成安全隐患。针对该地质灾害,采用了泥石流以排导槽排导为主,靠集镇侧设置拦挡桩群作为二道防线、排导槽上游侧设置分流槽排泄超标泥石流、二蛮山古堆积体采用锚拉抗滑桩进行固源、设置多道截排水措施相结合的综合防治方案,可为其它类似地质灾害治理提供借鉴。
Based on the basic features of debris flow and the causes of the landslide-debris flow in Wengongji Town, Hanyuan County, Sichuan Province, this paper, through the macro-judgment of disasters, surface geological mapping, exploration test, field investigation and quantitative analysis, The loose material accumulated in the ditch may once again lead to the debris flow caused by the large-scale debris flow and the instability of the ancient Damduan sedimentary body, thus posing a potential safety hazard for the Wagong Town. In view of the geological disasters, the debris flow is mainly discharged by the guide of the guide groove, the barrier pile is set as the second line of defense by the side of the town, the upstream of the guide groove is provided with the diversion groove to discharge excessive mudslides, and the ancient mount of the Ermanshan is anchored Anti-slide pile solid source, set a multi-channel cut-off water measures combined with a comprehensive program of prevention and control for other similar geological disasters to provide reference.