CAJ | 학술논문

石棉县后沟是一条典型的自然泥石流和矿渣泥石流并存的泥石流沟。本文以石棉后沟为例，结合早期自然泥石流、矿产开采以来矿渣泥石流、以及2013年7·4复合型泥石流，总结了自然泥石流和矿渣泥石流的复合效应，包括泥石流物源补给的多元效应、泥石流发展演化的逆转效应、泥石流起动发生的复杂效应、泥石流动力沿程的放大效应、泥石流致灾破坏的链式效应。对照泥石流对已建防治工程的破坏，提出了自然泥石流和矿渣泥石流复合型泥石流沟防治对策，建议充分利用起动位置和物源集中补给位置的差异，加强对中上游及支沟自然泥石流起动和运动的拦挡防治，最大限度减小自然泥石流对下游矿渣防护工程的基底侵蚀和冲击破坏，从而保障综合防治工程的有效性。
석면현후구시일조전형적자연니석류화광사니석류병존적니석류구。본문이석면후구위례，결합조기자연니석류、광산개채이래광사니석류、이급2013년7·4복합형니석류，총결료자연니석류화광사니석류적복합효응，포괄니석류물원보급적다원효응、니석류발전연화적역전효응、니석류기동발생적복잡효응、니석류동력연정적방대효응、니석류치재파배적련식효응。대조니석류대이건방치공정적파배，제출료자연니석류화광사니석류복합형니석류구방치대책，건의충분이용기동위치화물원집중보급위치적차이，가강대중상유급지구자연니석류기동화운동적란당방치，최대한도감소자연니석류대하유광사방호공정적기저침식화충격파배，종이보장종합방치공정적유효성。
The Hou gully in Shimian County is a typical debris-flow gully where either natural debris flow or mine debris flow can occur.This paper is based on the investigation and analysis on the deposition characteristics of former natural debris flows in history,mine debris flows since exploitation of mineral resource in recent years and the combined debris flow occurred on July 4,201 3.The combined effect of natural debris flow and mine debris flow is summarized in the following five aspects:(1 )the multi effect of the solid materials supplying for debris flow,(2) the reversal effects of debris flow development and evolution,(3)the complex effect in debris flow initiation and occurrence process,(4)the amplification effect in debris flow downstream transporting process and (5 )the chain effect during debris flow damaging process.In addition,prevention countermeasures are put forward for the Hou gully debris flow at the end of this paper.It is suggested that the control works built at the middle stream for the blocking of natural debris flow can play the key role to ensure the effective and comprehensive prevention and engineering control works for preventing the mining slags at the lower stream from failure and initiation.