高压旋喷加劲水泥土桩锚支护技术的应用与探讨

Application and Discussion of High Pressure Jet Grouting Reinforced Cement-soil Pile Anchor Support Technology in Soft-clay Deep Foundation Pit Encolsure

摘要:

高压旋喷加劲水泥土桩锚是一种新型的、先进的岩土加固与支护技术。结合2个围护桩（SMW工法桩或组合排桩）+高压旋喷加劲水泥土桩锚支护体系在软土深基坑中应用的工程实例，阐明了高压旋喷加劲水泥土桩锚支护技术具有经济性好、施工方便、适应性强等优点，具有较好的综合效益，同时也指出在深厚软土中存在的问题。

关键词:深基坑支护;软土地基;高压旋喷加劲水泥土桩锚;围护桩

Abstract:

High pressure jet grouting reinforced cement-soil pile anchor is a new advanced geotechnical reinforcement and support technology. In this paper, combined with 2 engineering cases of retaining pile (SMW or composite piles in row) high pressure jet grouting reinforced cement pile anchor bracing system, it is illustrated that the high pressure jet grouting reinforced cement-soil pile anchor support technology has the advantages of good economic performance, convenient construction and good adaptability with good comprehensive benefits, and the problems of construction in deep soft-clay soil are also pointed out.

Key words:deep foundation pit support; soft-clay foundation; high pressure jet grouting reinforced cement-soil pile anchor; retaining pile