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一、引言在地震区,当设计浅基础和深基础时,有必要查明地震过程中土可能产生的抗剪强度,以便在拟建的基础设计中采取足够的安全系数。同样,应该估计土骨架结构大的剪切变形对土变形特性的影响,以预报地震后可能发生的沉降。然而,目前的研究水平尚不能就土骨架的部分破坏引起土增加的压缩性作出定量的估计。
I. INTRODUCTION In the seismic zone, when designing shallow foundations and deep foundations, it is necessary to identify the possible shear strength of the soil during the earthquake process in order to adopt adequate safety factors in the proposed basic design. Similarly, the effect of large shear deformation of the soil skeleton structure on the soil deformation characteristics should be estimated to predict the possible settlement after the earthquake. However, the current level of research has not been able to make a quantitative estimate of the compressibility of the increase in soil caused by partial destruction of the soil skeleton.