Research On Application Of Construction In The Urban Construction Of Gas Pipeline Directional Drilling

As the process of development and construction of towns of the basicconstruction, as one of the important town gas pipeline in the infrastructure,the contradiction between the facing the existing buildings and structurescan not be dismantled and push forward the process of building the. In order to solve this problem, experts and scholars have the majority of theconstruction in the field of study of various non excavation technology.Trenchless technology refers to the current situation of the roads and facilities not open excavation case, need to pass through the highway,railway, subway, airport facilities, river, South to North Water Diversion Canal of Ming(dark), buildings, in the town of bustling commercial area,residential and cultural relic protection zone, underground installationtechnology for pipeline construction. Trenchless technology is widely used in the town of various basic construction field, including water supply and drainage, electric power, communication, network transmission, radio and television, gas, oil, heat, underground rail transportation facilities etc..Trenchless technology in urban basic construction, plays the reliability of construction high quality, small impact on regional traffic construction, smallimpact on the environment of construction, short construction period, low comprehensive cost, significant social benefits, etc.. Trenchless technologyis divided into pipe, pipe ramming, Ding Xiangzuan, shallow depth excavation, shield, turnover lining etc. according to the constructionmethod, this paper will be according to the directional drilling expansion. To be able to better in the basic construction of the growing demand for gas in the use of directional drilling technology, speed up the construction progress, improve construction quality, reduce the construction costs,reduce the impact on the surrounding environment, improve project on social benefits. This paper from the domestic and international current situation of application of directional drilling technology, working principle and operating method of directional drilling technology, directional drillingcompared with other types of trenchless technology, five aspects of directional drilling technology used in urban gas pipeline construction to carry on the elaboration.