选线设计及线路CAD功课谜底(国外英文资料).docVIP

选线设计及线路CAD作业答案(国外英文资料)Select line design and circuit CAD for referenceTheory of the first chapterOne, multiple choice questions1, ABCD 2, CD 3, ACD 4, ABCSecond, fills up the topicConstruction designRailway technical management regulationsThree, the noun explanation1, a single design: design is on the railway line selection, on the basis of the building (subgrade, bridge, tunnel, station, etc.) and equipment (locomotive, vehicle, water supply, power supply, signal, etc.) to carry on the detailed design, for the preparation of construction organization design and (pre) is to provide the information.Feasibility study: it is an important content of the basic construction of railway construction, which is an integral part of the construction procedure. Is the purpose of the feasibility study according to the requirements of railway medium and long-term planning for the necessity of the construction project, the possibility of technology and economy, macro arguments, and the timing of the construction, in order to provide basis for the construction project decision-making.Fourth, the short answerA: rail transport has many advantages such as large volume, fast speed, low energy consumption, low cost, safe and reliable, low environmental pollution and all-weather transportation.2, a: in order to adapt to the needs of high speed and overloaded, the basic measures include: line to strengthen the reconstruction, the busy main line is realized and electrochemical, effective length, extended front shop in heavy rail and use seamless line; Electrification and internalizing of traction power.3, a: railway line selection design of the basic tasks: (1) based on the investigation of the passenger and cargo traffic, combined with the topography and geological conditions, choose line trend and main technical standards; (2) determining the space position of the line (plane, facade); (3) determine the location of various buildings and equipment online, providing the premise for the indi