降雨诱发土坡失稳过程中弹性波波速演化规律的模型试验研究

doi:10.13722/j.cnki.jrme.2018.1104

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Abstract An early warning system of slope instability is one of optimal choices to decrease casualties and economic losses resulted from landslide disasters. A new technique for forecasting landslides by means of elastic wave propagation in soil was developed. To verify its applicability，a series of small scale fixed and varied slope model tests，as well as a large scale model test，were conducted. The test results show that the elastic wave velocity continuously decreases with increasing the moisture content or the deformation of the slope soil and sharply drops near slope failure，and that the soil deformation has more significant effect on the elastic wave velocity than the water content. It was proposed that a warning should be issued once the wave velocity decreases drastically. Based on these observations，a workflow of the elastic wave velocity monitoring system for landslide prediction in the field application was presented，and the problems for applying the monitoring system in practice were also analyzed.

Key words： slope engineering landslides early warning rainfall elastic wave velocity

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	Articles by authors
	CHEN Yulong1
	2
	UCHIMURA Taro2

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CHEN Yulong1,2,UCHIMURA Taro2. Model tests of evaluation behaviors of the elastic wave velocity during the failure process of soil slopes due to rainfall[J]. , 2019, 38(10): 2138-2150.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2018.1104 OR https://rockmech.whrsm.ac.cn/EN/Y2019/V38/I10/2138

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