软质岩石 meaning in English

weak rock

A discussion on bearing capacity of socketed pile in very soft rocks
极软质岩石中嵌岩桩的单桩承载力探讨
Soft rock weathering zone identification and bearing capacity determination
软质岩石风化带的划分与承载力确定
Support technique and reconnaissance point of soft rock foundation pit engineering
软质岩石基坑工程的勘察要点与支护技术应用
A discussion on pile end bearing capacity eigenvalue taking method in a very soft rock foundation
浅析极软质岩石地基中桩的端阻力特征值的取值