多学科前兆场联合反演孕震区力学参数的探讨

Study on the combining inversion for dynamic parameters of seismogenic region with multidisciplinary precursory field

根据地震前兆位移场的解析表达式 ,进一步给出各种应变、倾斜、地下水和地电阻率的前兆场的解析表达式。讨论了根据多种前兆场观测资料反演潜在震源参数的可能性。由于在这些表达式中具有相同的未知数 F、x、y、h、α、β,充分利用上述各种前兆场观测数据 ,联合反演潜在震源参数应该是可行的。但是 ,对于前兆台站来说 ,由于受局部条件和仪器漂移等因素的影响 ,观测资料往往与面上观测结果不一致。在实际反演计算时 ,还有许多技术问题需要解决。

Based on the expression of precursory displacement field,the expressions of stress,tilt,groundwater and earth resistance are given,and the feasibility to inverse potential focal parameters with multiple precursory data is discussed.Since these expressions have the same unknowns of x,y,h,α,β,if we use the precursory data above mentioned sufficiently,the combining inversion should be feasible.But since the affection of local condition and apparatus drifting,the data are usually not uniform with the results,so many technical problems need solve in calculation.