英语翻译从1964年10月1日日本第一条高速铁路通车至今,经过四十多年的发展,高速铁路以其快速、安全、经济和环保等方面的

英语翻译
从1964年10月1日日本第一条高速铁路通车至今,经过四十多年的发展,高速铁路以其快速、安全、经济和环保等方面的明显优势.目前在世界范围内高速铁路的兴建方兴未艾,技术进步更是日新月异.客运专线即高速铁路要求高平顺性和高稳定性的轨道,稳定、沉降小且沉降均匀的平顺路基更是高平顺性轨道的基础.而稳定性好的路基,主要是靠路基的工后沉降和不均匀沉降来控制的.我国国土幅员辽阔,地形地质条件非常复杂,存在大量具有特殊物质成分和结构,而工程地质性质也较特殊的土.路基是铁路和公路的基础,必须具有足够的强度和稳定性,因此对通过特殊土地区的路基具有更高的质量要求.只有在判明地层情况,确定地基条件符合要求后方可进行路堤填筑,否则应进行加固处理.本论文主要介绍长昆客运专线贵州段的特殊土路基施工技术研究,以软土、松软土和红黏土为主.无咋轨道地段所有土质地基均需进行稳定性及工后沉降分析,工后沉降必须满足规范要求.当路基稳定性、工后沉降或工后沉降差值不满足规范要求时,需要对地基进行加固处理.加固措施主要有挖除换填、水泥土搅拌桩、水泥土多向搅拌桩、CFG桩、高压旋喷桩、混凝土预制管桩、堆载预压法等,本文列举出了各方法的适用条件、施工准备、技术要求、质量控制、质量检验、注意事项等.并通过对各种路基处理方法的适用条件、场地要求、优缺点的比较,最终确定了CFG桩的优势,因而在长昆客专贵州段特殊土路基施工中被广泛采用,也是目前最经济合理的施工工艺之一.

From October 1, 1964 Japan's first high speed railroad traffic so far, after forty DuoNian development, high-speed rail with its rapid, safe, economic and environmental protection, and other aspects of the obvious advantages. At present in the world scope of high speed railway construction is in the ascendant, technological progress is more with each passing day. High speed railway passenger special line that is required GaoPingShun sex and high stability of the rail, stable, settlement and settlement of small even smooth GaoPingShun sex is the track of subgrade foundation. And the stability of roadbed, main is to rely on good roadbed post-construction settlement and the uneven settlement to control. Our homeland is a large country, topography and geology condition is very complex, and there are a lot with special material composition and structure, and engineering geological properties of a special soil. Embankment is the foundation of the railway and highway, must have the enough strength and stability, and so on through the special land area with high quality requirement of roadbed. Only in the bounderies stratum situation, make sure foundation conditions can be conducted only meet the requirements of the filling the road embankment, or should be for reinforcement. This paper mainly introduces the long period of special passenger line guizhou soil subgrade construction technology research, with soft soil, soft soil and the red clay primarily. No zha rail area all soil foundation are subject to an stability and post-construction settlement analysis, post-construction settlement must meet the requirements specification. When the subgrade stability, post-construction settlement or post-construction settlement difference value is not satisfy the standard requirement, the need of foundation reinforcement. Reinforcement measures mainly has WaChu change fill, mixing pile, water soil learn a lot from mixing pile, CFG pile and high pressure jet grouting pile, prefabricated concrete pile, fill preloading method, this paper make a list of various methods, the applicable condition, the construction preparation, technical requirements, quality control and quality inspection, the points for attention, etc. And through various subgrade treatment method of the applicable condition, the condition, advantages and disadvantages, the comparison of the final CFG pile, and the advantage in the long period of special guest designed guizhou soil subgrade construction, is widely used in the most economic and reasonable construction technology of one.