凤凰磁浮工程对邻近高速铁路影响研究  

Research on the Impact of Fenghuang Maglev Project on the Adjcent High-speed Railway

作　　者：宋晓东 SONG Xiaodong(Shanghai—Kunming High-speed Railway Hunan Co.,Ltd.,Changsha 410000,China)

机构地区：[1]沪昆客专湖南公司,长沙410000

出　　处：《路基工程》2022年第2期130-134,共5页Subgrade Engineering

摘　　要：凤凰磁浮工程YDK0+000~+720段与部分张吉怀铁路并行,采用数值计算方法评估路堑开挖、路堤填筑、桥梁施工及列车运营对在建铁路的影响。研究结果表明:凤凰磁浮工程施工及运营不影响邻近在建张吉怀铁路路基及桥梁结构安全;邻近张吉怀铁路爆破施工单段炸药用量不应超过相应距离对应的最大值;采用冲击钻施工桥梁桩基时,桩位距张吉怀铁路建(构)筑物应超过影响半径。The YDK0+000~+720 section of the Fenghuang Maglev project is partly parallel to the Zhangjihuai Railway. It uses numerical methods to evaluate the impact of road cutting, embankment filling, bridge construction and train operation on the Railway under construction. The results of the research show that the construction and operation of the Fenghuang Maglev project will not affect the safety of the adjacent Zhangjihuai Railway subgrade and bridge structure, the single-stage explosive quantity should not exceed the maximum value related to corresponding distance, and the distance between the piles and the Zhangjihuai Railway construction(structure) when using impact drills to construct bridge pile foundations should be more than the radius of influence.

关 键 词：临近工程 高速铁路 变形分析 控制爆破 冲击钻孔 

分 类 号：TU433[建筑科学—岩土工程] U238[建筑科学—土工工程]