松木桩加固地基在厢涵工程中的运用

Pine Wood Piles Strengthen Subbase used in Major Blow-off box Culvert Project

以某大型排污厢涵工程实践为背景,介绍了松木桩在淤泥软土地基加固中的应用。从场地条件及松木桩的适用性论述了软基处理方案设计的原理,阐述了松木桩的独特性能以及试验表现出的力学特性,给出了松木桩施工的工艺流程,以及处理软基的效果评价。实践表明:松木桩用于软土地基的加固,在特定的条件下具有造价低、工期短、能因地制宜等独特的优势,处理后的地基具有总沉降量小、能促进强度增长、整体强度高的特点。

Pine wood piles strengthening slush soft soil subbase is introduced on the basis of a major blow-off box culvert project. From ground conditions and pine wood piles＇ adaptability, discussing the principle of conceptual design on handling soft soil subbase, expounding pine wood piles＇ characteristic and mechanical properties on experiment, providing pine wood piles＇ construction technological process and the effect valuation of handling soft soil subbage. Practice showing： on some special conditions, pine wood piles strengthening subbase has many special characteristics, such as reducing engineering cost, shortening working day and adopting measures suiting local conditions,etc. The subbase＇ s total settlement volume is small after handling. It can improve strength increasing and the total strength is high.