layered foundation
2.Solution to Biot Consolidation Equation in the Interior of Multi-layered Foundation Bearing Force at a Point
4.To solve serious static correction problems in complex near-surface areas of western China, different refraction first-break statics methods are studied in this thesis. The main study contents are as follows:1) The propagation features of refraction for horizontal layered and dip media are studied firstly, it lays a good theoretical foundation for later statics method studies.
