A COMPARISON AMONG THE PLANS OF PIPELINE CROSSING OVER LARGE MEDIUM RIVER
Chen Zhongke(Gas Transmission Company,Sichuan Petroleum Administration).NATUR.GAS IND.v.20,no.2,pp.83～86,3/25/2000.(ISSN 1000 0976;In Chinese)
Gas and oil transmission pipeline is the main artery of energy source of national economy and it is very important to ensure a smooth and steady transmission and feeder.The safety of pipeline crossing over large medium rivers is the key to the safe running of the pipe network,therefore,to adopt the safe,advanced ,easy to operate and manage and low cost design plan for the construction of pipeline crossing over river is directly relating to the technical and economic benefits of pipeline construction department and pipeline management department,becoming a non negligible problem in the business management and administration.In this paper,the advantages,shortcomings and applying limits of gas pipeline crossing and aerial crossing are introduced and the four types of pipe laying,i.e.bare pipe laying without trench,pipe laying by burying in trench,pipe laying by burying without trench and open pipe laying in tunnel,are compared in detail,and it is shown that the open pipe laying in tunnel is the optimum design plan with the best technical and economic benefits in pipeline crossing over large medium rivers.
【CateGory Index】： TE83