某高速公路工程软路基处理研究

Study on Weak Roadbed Treatment of an Expressway Project

该文介绍了某高速公路工程软土路基处理的试验研究。首先,指出在施工处理淤泥及软土质路基的过程中,必须了解各种软弱路基特性、各项路基指标,处理和制订方案时要经过比较技术经济等综合影响。接着,阐述了在施工质量控制中要加强管理并制定措施,发现随时出现的问题,使方案得到修正,这样工程质量才能符合规范设计标准的要求。有丰富含水量的淤泥和软土具有低抗剪强度、低承载力的力学特性,修筑路堤时可能产生较大沉降。处理软弱地基的目的是为了增强软弱地基的强度,确保地基稳定;使软弱地基的压缩性降低,基础的沉降和不均匀沉降可以控制在允许范围内。

The article introduces the experimental study of weak roadbed treatment of an expressway project,firstly points out that the designers must understand various weak roadbed characteristics and various roadbed indexes in the construction and treatment process of silty and weak roadbed, compare the comprehensive influences of technology and economy in the drawing up of scheme, then sets forth to strengthen the management and to draw up the measures in the construction quality control so as to find the problems at any time and make the scheme revised. This engineering quality can conform to the specification requirements of design standard. The rich water contents of silt and soft soil have the mechanics characteristics of low shear strength and low bearing capacity so that the greater settlement maybe cause during the construction of embankment. The purpose of soft foundation treatment is to strengthen the strength of weak foundation and ensure the stability of foundation in order to make the foundation compression reduce and to make the foundation settlement and nonuniform settlement able to be controlled in the permitted range.