Numerical Simulation And Stability Analyse Of Water Pool And Soil Slope

As we all known, landslide is the one of main nature disasters, so it is very important and necessary to perform stability analyse for the soil slope of potential landslide. Because the 400 m3 water pool is built on the Longquan mountain in ecological garden, the potential disaster of landslide brings worries to people nearby. To remove people's worries, the stability of the soil slope is studied. At first, the geology of Longquan mountain is investigated, and the potential landslide surface is estimated. Afterwards, the engineer datum, comprising those of reconnaissance, design and construction, are collected, the structural safety of 400m3 water pool is studied.Based on these datum, the finite element model of soil slope nearby the water pool is founded. Then, the numerical simulations of the soil slope are performed during the each phase of construction and usage, including digging of water pool, being filled with water and earthquake. By using strength reduction method, the stability analyse of soil slope nearby 400 m3 water pool the is done. The main works and conclusions of this paper can be described as below:(1) The geology of Longquan mountain is investigated, the potential landslide surface is estimated, and the engineer datum, comprising those of reconnaissance, design and construction, are collected.(2) By using the SOLID65 element comprising reinforcing steel bar, the three-dimensional finite element model of 400 m3 water pool is established. The distribution of soil stress and strain, and the displacement of water pool is calculated during 3 steps, before and after filling soil on pool's top, and after being filled with water. The calculation results show that the 400 m3 water pool is safe during construction and usage.(3) Based on engineering datum, the finite element model of soil slope nearby the water pool is founded.(4) The distribution of soil stress and strain, and the displacement of soil slope is calculated during each phase, comprising natural phase, digging of water pool, being filled with water and earthquake. The calculation results of strength reduction method show that the safety factor of soil slope nearby water pool is 1.5 when the 400 m3 water pool is filled with water.(5) By using dynamical analyse method and slices method, the the safety factor of soil slope nearby water pool is 2.16 during earthquake, and the safety factor is 1.45 by using static analyse and strength reduction method.