隧道弃渣高填方路基摊铺施工技术研究  

Research on paving construction technology for high-fill subgrade with tunnel muck

作　　者：郭强 GUO Qiang(Qinghai Provincial Transportation Construction Management Co.,Ltd.,Xining 810003,China)

机构地区：[1]青海省交通建设管理有限公司,青海西宁810003

出　　处：《青海交通科技》2024年第5期91-94,共4页Qinghai Transportation Science and Technology

摘　　要：随着我国高速公路通车里程持续增长,山区公路因地形条件所限,常常需要穿越深山峡谷区域。当遇到地形条件限制而无法采用桥梁跨越时,一般会以高填方路基的形式通过。本文以青海省ZN公路的高填方路基试验段为依托,分析了高填方路基的施工特点,并针对该依托工程试验段展开了地基承载力试验。依据试验结果,对填筑前的路基地基进行了相应处理。同时,在试验段分别开展了后退式摊铺法、渐进式摊铺法以及混合摊铺法这三种摊铺试验,旨在筛选出适宜的摊铺方式,进而确保高填方路基的摊铺质量与路基稳定性。研究结果显示,混合摊铺法在狭小施工场地中具有良好的适用性,能取得显著的质量效果。本文研究成果可供相关工程人员参考借鉴。With the continuous increase of the mileage of expressways in China,mountainous highways,due to terrain limitations,often need to pass through deep mountain and canyon areas.When the terrain conditions pre-vent the use of bridges for crossing,high-fill subgrades are generally adopted.This paper is based on the high-fill subgrade test section of the ZN Highway in Qinghai Province.It deeply analyzes the characteristics of high-fill subgrades and conducts a foundation bearing capacity test on the test section of the project.According to the test results,corresponding treatment is carried out on the subgrade foundation before filling.At the same time,three paving tests,namely the backward paving method,the progressive paving method,and the mixed paving method,are carried out respectively on the test section.The purpose is to select a suitable paving method to en-sure the paving quality of the high-fill subgrade and the stability of the subgrade.The research results show that the mixed paving method has good applicability in narrow construction sites and can achieve significant quality effects.The research results of this paper can be used as a reference for relevant engineering personnel.

关 键 词：隧道弃渣 高填方路基 摊铺施工 

分 类 号：U416.1[交通运输工程—道路与铁道工程]