Ground subsidence prediction for 220 KV high-voltages substation
WU Qin-hai · Cehui kexue · 2010
Large area subsidence of the ground near 220 KV high voltage station may be unsafe.To know the regularity of subsidence rules of ground and supervise practice,the paper studies the volume of earthwork and settlement rules of ground.Some monitor points were located evenly in the settlement region to timely measure the settlement situations,the plane coordinates and heights of each phase of the points.Using the computational function of earthwork of South CASS mapping software in different phase,several models,Gompertz model,hyperbolic model,Logistic model and index curve model,were selected to fit the earthwork data with 1st0pt software.A forecast model was constructed and the precision was evaluated.The method can accurately reflect the settlement situation and play a prominent role for monitoring settlement of individual points.