%0 Journal Article
%T DYNAMIC STRESS ANALYSIS OF SUBGRADE-BRIDGE TRANSITION SECTION OF QINSHEN RAILWAY<br>秦沈客运专线路桥过渡段路基动应力测试分析
%A L Wentian
%A Wang Yonghe
%A <br>律文田
%A 王永和
%J 岩石力学与工程学报
%D 2004
%I 
%X The damage of subgrade is made by the high speed train passing roadbed-bridge transition section. Qinshen special rail line for passenger is the first railway which has the capability to run over 160 km/h in our country. The dynamic stress of subgrade-bridge transition section under high-speed train action is analyzed and tested in Qinshen railway from DK46+765.95 to DK46+790.95. The longitudinal distributive regularities of dynamic stress of subgrade-bridge transition section,relationships between train speed and dynamic stress,and variety of dynamic stress with depth are analyzed. The analytical results indicate that the longitudinal distribution of dynamic stress has a tendency to increase with train speed,but when train speed exceeds 176 km/h,dynamic stress increases a little,even decreases slightly. Dynamic stress is attenuated very fast with depth of subgrade,and approaches static stress as depth increases.
%K road engineering
%K special rail line for passenger
%K transition section
%K subgrade
%K earth pressure<br>秦沈客运专线
%K 道路工程
%K 路基
%K 动土压力
%K 静土压力
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=D3421FAA1A0A0F0C&jid=35E747D791A1346351AFB523B7FA35CB&aid=B23176692ED0B5CC&yid=D0E58B75BFD8E51C&vid=EA389574707BDED3&iid=38B194292C032A66&sid=8566B4AE2A8832E3&eid=9B1D77939DDB4B89&journal_id=1000-6915&journal_name=岩石力学与工程学报&referenced_num=9&reference_num=10