现有土钉支护技术规程规定其一般适用于可塑、硬塑或坚硬的粘性土,胶结或弱胶结的砂、沙土和角砾,填土,风化岩层等。土钉支护较少大面积应用与软土地基中,但与深层搅拌桩共同作用却能够解决受场地限制单独靠搅拌桩无法完成的支护问题。本文结合工程实例论述了土钉支护应用在软土地基的设计、施工方法及对策。 The existing technical regulations for soil nailing are generally applicable to plastic, hard plastic or hard cohesive soil, cemented or weakly cemented sand, sand and breccia, fill soil and weathered rock formations. Soil nailing is less applied in large area with soft soil foundation, but with the deep mixing pile, it can solve the support problem which can not be completed by the mixing pile alone by the site restriction. This article discusses the design, construction methods and countermeasures of the application of soil nailing in soft soil foundation with engineering examples.