外文翻译---非开挖技术在工程中的应用.doc

The application of Trenchless technology in engineering Abstract: In recent years, trenchless technology was developed rapidly in our country. Because it damaged environmental small,locate accurate,cost low,didn’t affect traffic and its construction period is short .So it was applied more and more in the underground engineering (such as urban underground pipeline and the subway). This article introduce the Examples of application of pipe jacking method (the common methods of trenchless technology) in urban underground pipeline and subway, and also describes the prospect and the existing problems of trenchless technology. Key words: Trenchless technology; pipe jacking method 0 lead said Trenchless technology is refers to the use of horizontal directional drilling technical means of the geotechnical dig, on ground not excavation circumstances laying, replacement and repair all sorts of underground pipeline construction of new technology. Because trenchless technology has laying pipelines position precision, construction period is short, the environmental damage the small, do not affect traffic and low cost advantages, non-excavation technology has in urban underground pipeline, subway lines and other engineering has been widely used. Trenchless construction equipment is mainly composed of the following several parts: 1) guidance system: used in drilling process to the drill bit localization to determine the orientation Angle and drilling. By transmitters and receivers, controller, remote monitor, power supply etc. 2) host: by the engine, hydraulic system, mud pump, dynamic axis, pipe and loading systems etc. 3) drill bit, back by expanding head, pipe etc. mud mixing system: can increase the drill lubrication, lower drilling resistance and drill working temperature. 1 in the pipeline trenchless technology project and the application 1.1 project summary Set 1650mm sewage pipe diameters for engineering, pipe jacking pipe using F tube, steel mouth interface, bear