文档介绍：指导教师签字
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摘 要
高速铁路代表了世界铁路现代化发展的大趋势，是21世纪交通运输的重大成果,是人类的共同财富。随着经济的迅猛发展，交通运输需求激增，我国铁路客运专线建设已经进入一个高速发展的时期，由于高速铁路运行速度快、技术标准高、对路基的要求严格， 控制路基变形沉降已经成为客运专线路基的最大特点。路基变形最明显、危害最大的问题是路基沉降。路基沉降控制是一个涉及因素较多、具有较大不确定性的工程难题。
路基沉降包括路基施工沉降和工后沉降，工后沉降尤其发生几率大、危害严重。本论文从黄土的性质和特性，路基沉降的原因、危害，控制路基沉降的措施、路基工后沉降的机理,控制路基工后沉降的必要性、步骤、措施、各种措施的特点,路基沉降计算、监测等方面分析了路基沉降.
关键字： 黄土 路基工后沉降 控制方式 沉降计算 监测
Abstract
High-speed railway represents the railway modernization development trend in the 21st century， is the important achievement of transportation， is the common wealth of mankind. Along with the rapid development of economy， the transportation demand, China railway PDL surge has entered a rapid development construction period，Due to the high speed railway running speed, the technical standard of roadbed, strict control of subgrade settlement of deformation and has become the biggest characteristic of PDL roadbed。 The most obvious harm， roadbed deformation of the biggest problems is the embankment settlement. Embankment settlement control is one which involves many factors， has large uncertainties of engineering problems。本文为互联网收集,请勿用作商业用途个人收集整理，勿做商业用途
Embankment settlement including sub grade construction settlement and post-construction settlement, post—construction settlement risk, particularly serious harm,This paper from the nature and characteristics of loess embankment settlement, the reason and harm， the control measures of embankment settlement and roadbed settlement mechanism, Control of sub grade settlement after the necessity, steps and measures, and the characteristics of measures, embankment settlement calculation， monitoring of embankment settlement。文档为个人收集整理，来源于网络个人收集整理，勿做商业用途
KEY WORDS： sienna embankment settlement control mode
settlement calculation detectio
目 录
第1章 绪论 1
选题背景及意义 1
1。2 我国铁路路基现状 1
黄土 1
黄土的颗粒组成会及结构 2
1。 黄土的多孔性 2
1。3。3 黄土的湿陷性与变形特性 3
1。3。4 黄土的结构性问题 4
第2章 路基沉降 4
路基沉降 4