泥石流沟道斜坡板岩气候环境响应行为与机制研究

doi:10.13722/j.cnki.jrme.2014.1712

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摘要为研究白龙江流域舟曲—武都地区泥石流沟道斜坡表层板岩在气候因素影响下的劣化进程，实验基于对区域内多处典型泥石流沟斜坡工程地质岩组和气候环境因素监测数据的分析，通过对完成不同次数冻融循环、干湿循环养护后的板岩进行宏观形态的观测，质量变化、弹性波速、应力–应变关系及单轴抗压强度的测试的对比研究，阐述板岩分别在不同环境作用下的劣化响应行为和机制，揭示斜坡表层板岩对干湿环境的劣化响应行为优于冻融环境的规律，表明干湿环境为区域内泥石流沟道斜坡板岩劣化为物源物质的主要环境控制因素，为该地区泥石流灾害的区划评价和防治提供有益的参考。

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	崔凯1
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	吴国鹏1
	王秀丽1
	谌文武2
	吕海敏2

关键词 ：边坡工程, 泥石流物源, 气候环境, 劣化

Abstract：For knowing the degradation processes of slate on suffer layer of mudflow channel in Zhouqu and Wudu located at the middle and lower reaches of the Bailong valley，we studied the physical degradation of slate using field photograph，varying quality variations，elastic velocity，stress-strain curves，and uniaxial compressive strength. These tests were carried out following varying numbers of cycles of thaw-freeze，wet-dry weathering. By applying correlation regression and fitting analyses，we real the degradation rules regarding the correlative index of slate by contrasting analyses following thaw-freeze，wet-dry weathering processes. The degradation of response of the functions to the degradation of slate is used to elucidate the degradation behavior and mechanisms of slate in the different functions and manifest that the major influent factor is the function of wet-dry. Our results provide a reference for evaluating slope stability，and predicting the potential for debris flow disasters in the study region.

Key words： slope engineering substance source of debris flow climate environment degradation

引用本文:

崔凯1，2，吴国鹏1，王秀丽1，谌文武2，吕海敏2. 泥石流沟道斜坡板岩气候环境响应行为与机制研究[J]. 岩石力学与工程学报, 2016, 35(S1): 2944-2952.
CUI Kai1，2，WU Guopeng1，WANG Xiuli1，CHEN Wenwu2，LU Haimin2. Research on the behavior and mechanism of the slate from the slope at the gully of debris flow respond to climate environment. , 2016, 35(S1): 2944-2952.

链接本文:

https://rockmech.whrsm.ac.cn/CN/10.13722/j.cnki.jrme.2014.1712 或 https://rockmech.whrsm.ac.cn/CN/Y2016/V35/IS1/2944

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