第四系地层对地震地表破裂的影响主要取决于第四系地层的土动力学性状、不均匀性和土层厚度等因素。
The main influencing factors of Quaternary layers contain the dynamic indexes of layers, uneven distributions of layers and the layers thickness.
本文搜集整理了由第四系到寒武系的沉积层资料，给出了沉积层总厚度和视密度的分布。
The data of sedimentary layers from the Quaternary down to the Cambrian are collected, and then the distributions of total thickness and apparent density of sedimentary deposits are presented.
第四系松散堆积层发育完全，厚度大。
Quaternary overburden is completely developed with thick layer.
第四系松散堆积层发育完全，厚度大。
Quaternary overburden is completely developed with thick layer.
应用推荐