Study of Forming Lenticular Sandbody with Stochastic Modeling Method

摘要

In exploration or design of groundwork, soil layer is often supposed to be plane, and the effect of Lenticular sand body and weak intercalated layer is often ignored, which is not proper. Actually, due to high compressibility and porosity, lenticular sand body in an intercalated layer will cause asymmetric settlement of ground, which is much more dangerous as compared with symmetrical settlement. Boolean stochastic modeling technology is used to form lenticular sand body with shape close to ellipse in this article so as to study the law of distribution of lenticular sand body according to borehole data. The results show that, Boolean stochastic modeling method is propitious to simulate spatial distribution of lenticular sand body and is an effective method in simulation as it can reflect the actual geological conditions. On occasions of little whole material，the lenticular sand body continuity model established by Boolean method makes modeling parameters more reasonable and credible. In the practical application, geologic information can be added into to the model easily, the simulation result is close to the geology notion comparatively.