地层加固技术发展的若干动向

Some Technical Development Tendencies in Ground Strengthening

地层加固技术的研究和推广是土木工程中一项重大课题。地层加固可分为改善地层的某些物理力学性质和保护地层不致受工程荷载而破坏两大类。本文对灌浆技术，高压喷射注浆，深层搅拌，振密挤实，地层锚固，成桩工艺以及软弱围岩中修建隧道的地层支护新技术等发展动向作综合性评述。

The study and dissemination of ground strengthening technique is one of the important questions in civil engineering. Ground strengthening can be divided into two types,i. e.improving some physical and mechanical properties of ground and protecting ground from damage caused by engineering load. The technique of grouting,high pressure shot grouting,deep buried mixing,vibrating compaction,ground bolting,technology of forming pile and new support technique of tunnelling in soft ground are evaluated synthetically in this paper.