本文介绍用生石灰粉或水泥与软粘土就地搅拌在地基内形成土柱以稳定沟槽,深开挖以及边坡的设计与施工方法。石灰土柱具有石灰用量低,施工振动小,挤土扰动少,透水性好的优点。文中讨论了石灰土的强度机理,石灰土柱的受力及破坏形式,给出了计算图式及应取的安全系数值。全文结合瑞典工程实例阐述。 This article describes the use of quicklime powder or cement and soft clay to form a soil column in the ground in order to stabilize the groove, deep excavation and slope design and construction methods. The lime soil column has the advantages of low lime consumption, small construction vibration, less disturbance of soil, and good water permeability. This paper discusses the strength mechanism of lime soil, the force and failure modes of lime soil columns, and the calculation diagrams and safety factor values ​​that should be taken. The full text combines Swedish engineering examples.