摘要
随着国家经济快速发展,铁路运量需求不断提高,既有线扩能工程不断涌现,拓宽增建二线便是重要方式之一。当线路受既有车站引入条件、地形地貌条件限制时,会出现新建路基边坡侵占水库或水库滩岸防护工程的情况。该类工程影响因素多,安全风险大,要同时保证既有线、新建路基、水库的安全稳定,还要兼顾环境保护,须选用适宜的防护方式处理。抛填片石、桩基处理、隔水围堰等方案的选择,要根据具体工程地质情况综合比选,以确定安全、可靠、可行的防护方式。
With the increasing demands for the railway passenger and cargo capacities,To expand of the existing single railway line to double lines is one of the important ways.With the constraints of station locations,and topographic conditions,the railway embankments might be constructed near the reservoir banks.As a result,the reservoir protection projects emerged.The protection mitigation selection related to many factors,such as,the safety operation of the existing rail line,the safe and stability of the new rail line and reservoir banks,finally,the environmental concerns.The viable measures include riprap protection,piled foundation and cofferdam to isolate the embankments.These measures should also consider the geotechnical conditions and above-mentioned factors.
作者
胡佳伟
HU Jiawei(China Railway Fifth Survey and Design Institute Group Co. , Ltd. ,Beijing 102600)
出处
《土工基础》
2018年第2期132-134,160,共4页
Soil Engineering and Foundation
关键词
水库滩岸防护
桩基处理
抛填片石
围堰
压实度
稳定
Reservoir Bank Protections
Piled Foundations
Riprap Protections
Cofferdam, Degree of Compaetions
Stability
