论路桥施工中的软土地基施工技术应用
2021-09-10孙超
孙超
摘要:在当前我国社会经济建设水平不断提升的背景下,道路基础工程的重要地位也随之提升,国家不断加强在道路基础工程建设方面的资源投入力度。软土路基是道路工程施工过程中面临的主要问题之一,对道路使用寿命以及行车安全性造成直接影响。由此,振冲碎石桩技术成为解决路桥工程软土路基的主要手段之一。基于此,本文将结合实际案例对振冲碎石桩加固技术应用要点进行研究,希望对工程建设人员提供参考意见。
关键词:路桥工程;软土地基;振冲碎石桩加固技术
Abstract: In the context of the continuous improvement of the current level of social and economic construction in my country, the important position of road infrastructure has also increased, and the country has continuously strengthened its investment in road infrastructure. Soft soil roadbed is one of the main problems faced in the process of road engineering construction, which has a direct impact on road service life and driving safety. As a result, the vibratory stone pile technology has become one of the main methods to solve the soft soil roadbed in road and bridge engineering. Based on this, this article will combine actual cases to study the key points of the application of vibro-impact gravel pile reinforcement technology, hoping to provide reference opinions for engineering construction personnel.
Keywords: road and bridge engineering; soft soil foundation; vibro-impact gravel pile reinforcement technology
在当前我国路桥工程施工技术不断成熟的背景下,各类软土路基加固技术不断被提出,并在提升我国路桥工程建设质量方面发挥着重要作用。各种软土路基加固处理技术日趋成熟,同时也出现了许多新技术、新工艺。振冲碎石桩加固技术在实际应用过程中呈现出明显的施工成本低、作业流程简单、对设备要求较少的优势,由此,被广泛应用于国内外路桥建设过程中。考虑到我国疆域广阔,路桥工程实际建设过程中遭遇软土路基的几率较大,由此,加强对振冲碎石桩加固技术的研究具有重要现实意义。
1.软土地基特征
通常情况下,建设行业内将实际施工过程中需要进行处理的软粘土、冲填土等归属于软土地基类别之中。此类土体的特征在于,存在于天然地基之上,但是在实际施工过程中无法满足路桥工程设计对地基承载力以及变形幅度等指标的要求,需要施工单位对其进行加固处理,加固处理的工艺方法有许多种,有换填法、水泥系加固法等。……
