Back analysis for soil slope based on measuring inclination data
来源期刊：中南大学学报(英文版)2012年第11期
论文作者：SUN Zhi-bin(孙志彬) ZHANG Dao-bing(张道兵)
文章页码：3291 - 3297
Key words：slope parameter; back analysis; soil division; deformation displacement
Abstract: Based on the analysis of several objective functions, a new method was proposed. Firstly, the feature of the inclination curve was analyzed. On this basis, the soil could be divided into several blocks with different displacements and deformations. Then, the method of the soil division was presented, and the characteristic of single soil block was studied. The displacement of the block had two components: sliding and deformation. Moreover, a new objective function was constructed according to the deformation of the soil block. Finally, the sensitivities of the objective functions by traditional method and the new method were calculated, respectively. The result shows that the new objective function is more sensitive to mechanical parameters and the inversion result is close to that obtained by the large direct shear apparatus. So, this method can be used in slope back analysis and its effectiveness is proved.
SUN Zhi-bin(孙志彬), ZHANG Dao-bing(张道兵)
(School of Civil Engineering, Central South University, Changsha 410075, China)
Abstract:Based on the analysis of several objective functions, a new method was proposed. Firstly, the feature of the inclination curve was analyzed. On this basis, the soil could be divided into several blocks with different displacements and deformations. Then, the method of the soil division was presented, and the characteristic of single soil block was studied. The displacement of the block had two components: sliding and deformation. Moreover, a new objective function was constructed according to the deformation of the soil block. Finally, the sensitivities of the objective functions by traditional method and the new method were calculated, respectively. The result shows that the new objective function is more sensitive to mechanical parameters and the inversion result is close to that obtained by the large direct shear apparatus. So, this method can be used in slope back analysis and its effectiveness is proved.
Key words:slope parameter; back analysis; soil division; deformation displacement
