【摘要】 泥石流是造成云南省直接经济损失最高的地质灾害。云南省在防治泥石流方面总结出一套“稳、拦、排、截”等工程和植物措施相结合的综合治理办法,V型槽属排导措施中的一种。在云南31条泥石流防治工程实验与实践中,突破泥石流排导最小纵坡和槽型最小曲线半径的理论限制,创造了在部分沟段排导槽最小纵坡3‰、最小曲线半径仅为槽宽的3倍仍能顺畅排导泥石流的效果,改善了纵坡连接代数差的范围,认识到平面曲线段(弯道拐点)和纵坡变坡点不能叠加的问题,发展了复式V型槽。更多还原

【Abstract】 Debris flow is one kind of geological disasters that brought the great direct economic loss in Yunnan Province.Many integrated measures combining variety of engineering methods like "stabilizing,blocking,draining and damming" and plantation have been used in preventing debris flows.V-shaped diversion channel is one of the engineering measures.The theoretical breakthroughs of minimum longitudinal slope and curve radius were developed in our prevention and control projects of 31 debris flows.It has been proved to be efficient in draining and channeling debris flow when longitudinal slope of the trough is 3‰ and curve radius is just 3 times of trough’s width.Further more,the compound V-shape channel has been developed,which changes fold line channels into smooth one when vertical slope angles are varying.更多还原