多种软基处理方式下高速公路湖相软土地基沉降规律研究

Settlement Laws of Expressway Lacustrine Soft Subgrade under Various Soft Foundation Treatments

软基处理在高速公路建设中广泛存在,且软土地基种类繁多。本文针对河北地区高速公路湖相软土地基,采用室内数值模拟和现场施工监测的方式,通过对堆载预压、长短复合桩基、强夯法、水泥搅拌桩复合地基处理等多种软基处理的方式进行研究、对比分析不同处理方式对湖相软基沉降规律的影响。

Soft foundation treatment is widely used in highway construction, and there are many kinds of soft ground. This paper fo- cuses at the soft soil foundation of Lacustrine soft in Hebei area, and it analyses the influence of different treatment methods on the settlement law of lacustrine soft through numerical simulation and field test, with a variety of soft foundation treatment methods such as preloading, long-short piles composite foundation, dynamic compaction, and cement mixing pile composite foundation.