合理确定卵石土层路堑边坡帐幕隔水方案  

Determination of Reasonable Scheme of Watertight Curtain for Pebble Soil Cutting Slope

作　　者：丁兆锋[1] 李井元[1] 曾永红[1] 

机构地区：[1]中铁二院工程集团责任有限公司,成都610031

出　　处：《铁道工程学报》2013年第2期22-24,43,共4页Journal of Railway Engineering Society

摘　　要：研究目的:在铁路建设中,挖方路基在江河周边通过,当其挖方深度低于江河洪水位时,应在铁路靠江河侧合理设置帐幕隔水止水措施,以避免河水倒灌,确保铁路的安全运营。本文以某车站工点为例,合理确定卵石土层路堑拉槽边坡帐幕隔水方案,以减小不利因素对新建铁路安全的影响,为设计者提供参考,为类似工程供提供借鉴。研究结论:一般情况下,对于新建铁路挖方通过江河周边,且其挖方深度低于江河洪水位时,应综合经济、技术、安全等因素合理选取通过方案。能够将周边江河对新建铁路建设安全的影响减小到最低程度,是处理类似工程问题的对策之一。方案的选择应避免一味追求造价低的误区,着重体现追求"高性价比"的价值观念。Research purposes： In railway construction, when the cutting subgrade passes through riverside with the excavation depth below the water flood level, the watertight curtain should be built reasonably to avoid the fiver water intrusion and ensure the safety of railway traffic. In this paper, on consideration of the technological, economic and safe factors, the discussion is made on the reasonable determination of the scheme of the watertight curtain for the pebble soil cutting slope in a railway station to reduce the influence of adverse factors on the newly - built railway. It can offer the reference to the similar works. Research conclusions：Usually, when the cutting subgrade passes through riverside with the excavation depth below the water flood level, the scheme of the watertight curtain should be chosen on consideration of the technological, economic and safe factors to reduce the influence of adverse factors on the new railway as much as possible. This is one of the ways to deal with the problems in such project. In the choice of the scheme, the misunderstanding of blindly seeking the low cost should be given up, and the high performance to price should be sought.

关 键 词：新建铁路 帐幕隔水 方案比选 

分 类 号：U213.13[交通运输工程—道路与铁道工程]