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| COUPLING ANALYSIS OF SEEPAGE AND STRESS FIELDS IN XIETAN LANPSLIDE IN THREE GORGES REGION |
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Abstract The Xietan landslide body can be regarded as an interbedded structure with three permeable layers (slope wash，landslide deposit deposit，and effected zone of the landslide) and two relatively impermeable layers (sliding zone and foundation rock)，so it is important to consider the coupling action of seepage and stress in the slide to evaluate the stability of landslide. The coupled seepage and stress fields in the Xietan landslide are analyzed by means of the continuum model when the reservoir water level reaches elevation of 175 m. The hydraulic head distribution in the landslide，the uplift pressure distribution along the bottom of sliding zone and the distribution of stress components are obtained based on the analysis. The results show that the interbedded structure is adverse to the stability of the Xietan slide，and the coupling action has more important effect on the stress field than on the seepage field.
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Received: 26 January 2003
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QI Chao1, 2, 3, CHANG Jucai1, 2, YIN Zhiqiang1, 2, 3*, ZHANG Chi2, SHI Wenbao2, WANG Tuo2, WU Bowen2, FAN Lei2, WANG Hongda2. Dynamic failure characteristics and mechanism of pre-stressed anchored coal under impact load[J]. , 2026, 45(6): 1787-1805. |
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