Test and Analysis of Dynamic Character of Chemical Improved Soil of Argillaceous Siltstone for Subgrade of High － speed Railway

ZHAO Yong

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Journal of Railway Engineering Society ›› 2012, Vol. 29 ›› Issue (3) : 22-25.

Test and Analysis of Dynamic Character of Chemical Improved Soil of Argillaceous Siltstone for Subgrade of High － speed Railway

ZHAO Yong

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Abstract

Research purposes: The chemical improved soil of weathered argillaceous siltstone was used as the filling material of the subgrade of the Wuhan － Guangzhou High － speed Railway． The smooth and safe running of the high －speed train need the sub － rail support system with small settlement，high stiffness and stable dynamic characteristics． In order to research the dynamic characters of the chemical improved soil subgrade of weathered argillaceous siltstone，the dynamic test components were placed in the test section to test the dynamic chatacters of the chemical improved soil subgrade of weathered argillaceous siltstone when the CRH3 EMU runs at the speed over 300 km/h．

Research conclusions: The dynamic test result showed that the chemical improved soil of weathered argillaceous siltstone could be as the filling material of the subgrade of high － speed railway when it had good compression strength and compactness． It is dynamic responses characteristics were similar to the subgrade of A、B groups fillings and fit the dynamic characters of the ballastless track system．

Key words

high － speed railway / completely weathered argillaceous siltstone / chemical improved / test on site / dynamic character

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ZHAO Yong. Test and Analysis of Dynamic Character of Chemical Improved Soil of Argillaceous Siltstone for Subgrade of High － speed Railway[J]. Journal of Railway Engineering Society, 2012, 29(3): 22-25

References

［1］铁道第四勘察设计院．武汉至广州客运专线总体设计原则［R］．武汉: 铁道第四勘察设计院， 2005．

The Fourth Survey and Design Institute of China Railways． General Design Rules of Wuhan － Guangzhou Passenger Dedicated Line ［R］． Wuhan: The Fourth Survey and Design Institute of China Railways， 2005．

［2］铁建设［2004］157 号，京沪高速铁路设计暂行规定［S］．

Railway Construction［2004］No． 157，Design Interim Provisions of the Beijing － Shanghai High － speed Railway ［S］．

［3］铁建设函［2005］754 号，客运专线无碴轨道铁路设计指南［S］．

Railway Construction Letter ［2005］No． 754，Design Guidelines of Ballastless Track Passenger Dedicated Line［S］．

［4］李继超．软岩风化物改良土工程特性试验研究及路堤数值模拟［D］．长沙: 中南大学， 2008．

Li Jichao． Engineering Characteristic Test Research and Numerical Simulation on Improved Weathered Soft Rock Filled Subgrade［D］． Changsha: Central South University， 2008．

［5］舒海明．高速铁路软岩改良土试验及施工工艺研究［D］．长沙: 中南大学， 2008．

Shu Haiming． Research on Improved Weathered Soft Rock Test and Construction Technology of High Speed Railway ［D］． Changsha: Central South University，2008．

［6］中铁第四勘察设计院集团有限公司．武广高速铁路软岩改良土填料现场填筑成套技术试验研究总报告［R］．武汉: 中铁第四勘察设计院集团有限公司， 2009．

China Railway Siyuan Survey and Design Group Co．Ltd． General Report of Experimental Research on System Construction Technology of Improved Weathered Soft Rock on Wuhan － Guangzhou High －speed Rail ［R］． Wuhan: China Railway Siyuan Survey and Design Group Co． Ltd， 2009．

［7］孙常新，梁波，杨泉．秦沈客运专线路基动应力响应分析［J］．兰州交通大学学报， 2003( 4) : 110 － 112．

Sun Xinchang，Liang Bo，Yang Quan． Test and Analysis for the Dynamic Stress Responses of the Qin － Shen Railway＇ s Subgrade［J］． Journal of Lanzhou Railway University( Natural Scieuces) ， 2003( 4) : 110 － 112．

［8］中铁第四勘察设计院集团有限公司．无砟轨道过渡段路基的变形控制技术及施工工艺的试验研究总报告［R］．武汉: 中铁第四勘察设计院集团有限公司， 2009．

China Railway Siyuan Survey and Design Group Co．Ltd． General report of Experimental Research on Deformation Control and Construction Technology of Transition Section under Ballastless Track ［R］．Wuhan: China Railway Siyuan Survey and Design Group Co． Ltd， 2009．

［9］邬强．武广高铁红载土路堑基床动响应现场测试与分析［J］．铁道工程学报， 2011( 8) : 47 － 52．

Wu Qiang． In － situ Test and Analysis of Dynamic Responses of Red Clay Cutting Bedding of Wuhan—Guangzhou Passenger Dedicated Line［J］． Journal of Railway Engineering Society， 2011( 8) : 47 － 52．