铁路工程

The company's largest highway projects in China, one of the contractor and the building of urban rail transport leader, participate in the construction of the underground railway and city light rail up to hundreds of projects.

公司还是我国最大的公路工程承包商之一以及我国城市轨道交通建设的领跑者，参与建设的地下铁路和城市轻轨工程达上百项。

Automobile parts, civicism engineering parts, railway parts, agricultural parts, engineering machinery parts, other machinery parts.

汽车配件、市政工程机械配件、铁路农机工程机械配件、其它机械配件。

The main environment geological question is: The earth"s crust where the faultage and earthquake are active is unstable; collapse , landslide, mud-rock flow and soil erosion ; The underground karst subsides, seepage question; Basic rock expand, expend and compress soil body, the salt deposit corrode out of shape and groundwater"s corrodent harm; The soft soil question of basin; The soft rock body, cracked rock and the weathering rock are relatively poor stability; High and cold regional highways and railways" frozen soils freeze and melt calamity problem; The around rock of tunnel are unstable because of the coal seam gas, spring water, underground developed area; Project cutting slopes, constructed abandon soil and reservoir, lake"s ecology geological environmental protection issue; Thedangerous shoal of the channel % submerged reef question; The problem of rebuilding channel project and dock etc.; And the problem of unstable ground and groundwater corrosivity during building airport; At the same time, with the international big pathways" implementation and completions of constructions, adjusting the cities and counties" constructions , the crowd occupy changing , the cultivated land distribute changing and the adjustments of structure, will cause local environmental geological issues outstanding; According to multiple statistical analysis , value calculate and integrated appraise result, in the northwest and southwest of Yunnan, the traffic relatively low density, traffic engineering is relatively weak impact on environment, It is the area where a environme

主要的环境地质问题是：活动性断裂、地震带的地壳不稳定；崩塌、滑坡、泥石流及水土流失；地下岩溶塌陷、渗漏问题；基础岩体膨胀、胀缩土体、含盐层侵蚀变形和地下水的腐蚀危害；盆地软土问题；软弱岩体、碎裂、风化岩体稳定性较差；高寒地带公路、铁路建设的冻土冻融灾害问题；煤层瓦斯、涌水、地下采空区等隧道围岩不稳定问题；工程切坡、施工弃土及水库、湖泊生态地质环境保护问题；航道险滩、暗礁问题；渠化工程、码头等库岸再造问题；以及机场建设中的不稳定地基及地下水腐蚀性问题；同时，随着大通道建设的实施和完成，城镇建设的调整、人群居落的变化和耕地分布及结构的调整组合，都可能造成局部环境地质问题的突出等等。经多元统计分析数值计算、综合评价结果，滇西北、滇西南地区交通密度较低，交通工程对环境的影响程度较弱，是环境地质状况好的区域；有主要高原湖泊分布区的，包括昆明、个旧、文山的滇东南区域，环境地质状况较好；大姚、楚雄、篙明及会泽、昭通一镇雄的区域，即滇中北部中生界红层和滇东北岩溶区，环境地质状况中等；而包括保山、德宏、大理、临沧的滇西地区及景东一墨江以东、双柏一石屏一河口以西及东川一寻甸一曲靖地段的滇中一滇东地区，环境地质状况较差。云南国际大通道建设涉及全省区域，如何利用地质环境、实现可持续发展，就必须依赖于国际大通道建设与地质环境之间良性关系的建立。应本着对区域地质环境客观存在的科学认识原则、建设过程中环境效益优先的可持续发展原则、法制性原则、对大通道建设中环境地质的因地制宜及其可防治性原则。并且从组织管理、不同类型大通道、不同环境地质问题类型等方面，提出了对策措施。最后，提出了建立国际大通道建设与环境地质良性关系的宏观建议。

In connection with the steel beam engineering of the landing stage of Railway Yantai-Dalian,the key technique in the fabrication process is summarized in this paper to provide reference for the similar projects later.

文章结合烟大铁路轮渡栈桥钢梁工程实例，对栈桥钢梁制造过程中的一些关键技术进行了总结，为今后类似工程的施工提供了借鉴。

With this requirement, The paper brings forward the Visual Time Controlling System for the project of railroading which be able to visually express process of the constructed item of road, bridge, railway, station and so on. The system can make with vivid show and progress statistic to adjust progress and amend plan comparing with the Real-time construction circs.

形象化工程进度控制系统就是在这种需求下提出的进度控制系统，能够形象化地表示出铁路建设工程中路、桥、轨道、车站等施工对象的施工进度，做出清晰的表示及进度统计，便于针对实时的施工情况，调整进度、修改计划。

It can be used to guide construction in subgrade engineering in Wenzhou-fuzhou railway and give some suggestion to similar engineering.

对温福铁路下一步全线正式工程及其他类似工程的施工提供一些有益的借鉴和指导作用。

The railway construction projects turn to more and more complicated, the supervisal and the management of the projects' quality and schedule need to be strengthened.

然后，对基于Web技术的工程项目管理系统进行了介绍，并在此基础上，总结出适合我国铁路建设的工程项目管理系统的可行方案。

Taking Beijing rail transit line as an example, this paper analyses the influence of ground to type selection, and makes risk evaluation of various types of shield machine.

以北京铁路地下直径线为例，通过工程地质分析、地层对盾构的选型影响分析以及不同类型盾构的风险评估等方面进行盾构选型分析，可供类似工程作参考。

In this thesis, the engineering property of the frozen earth in the frozen railway roadbed in Anduo section (between DK1561+975-DK1562+530) of Naquhe region of Qinghai-Tibet railway was studied indoor. The change of engineering property of the earth samples with different water content , density and temperature were researched. The influence of concentration of the diffluent salt to the frozen strength was pilot studied. The thermal conductivity of the soil was experimented. With the result and data of the tests, the earth temperature field in Anduo section was demonstrated by numerical analysis, the structure parameter of the spall revetmentd and the rubble berm was given, the stability of the railway roadbed was evaluated.

本文以青藏铁路格尔木-拉萨段那曲河地区安多段(DK1561+975～DK1562+530)冻土路基为对象，对该地区冻土的工程性质进行了室内试验研究；对不同含水率、不同压实度的土样，研究在特定温度变化范围内工程性质的变化：初步分析了易溶盐含量对冻结强度的影响：测试了土样的导热系数；在室内土工试验的基础上，根据测试结果和数据，对安多段区域地温场进行了数值模拟，分析了该工点区间内合理片石护道、碎石护坡结构参数，评价了路基稳定性。

With ERDAS IMAGINE 8.4 software,through rectification,digital orthographical maps inlaying,artificial color composition to Dian Zang railway by generating DEM and compounding with remote sensing image,the paper generates a three dimensional geomorphologic image and visible flight film by extracting information of geological engineering disasters and geological structure.

利用 ERDAS IMAGINE8.4版图像处理软件，对滇藏线原始数据经过校正、数字正射影像镶嵌、假彩色合成图像增强处理后，通过 DEM的获取、生成与遥感图像的配准，制作具有三维视感的地貌影像图及可视化飞行电影动画，提取工程地质灾害、地质构造信息，从工程地质角度对新建铁路滇藏线预可行性做出评价。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。