Research On Trenchless Design And Construction Technology Of Qiancheng Road Heating Supply Pipe Network Project

Urban heat pipes are distributed under urban roads with dense population and complex environment.With the extension of heating operation time and the influence of vehicle load and building settlement,the heat pipes will be damaged to different degrees.Moreover,due to the harmful ions in the soil around the pipe.the pipe itself will be corroded to different degrees,leading to very serious safety accidents.It has become a very important issue in the field of urban heating to effectively improve the running safety of urban heating pipelines.At present,the construction method of heat supply pipeline laying in domestic cities is not very mature Construction method of slotted directly buried construction and semi-trench construction.However,these traditional construction methods require large areas of excavation,which not only destroys the urban traffic order,but also causes different degrees of damage to the original underground structure and has adverse effects on the surrounding buildings.In order to solve the problems existing in the above traditional construction methods,this paper adopts the construction method of pipe jacking without excavation,which can minimize the excavation of the road,avoid the adverse impact on the surrounding soil and buildings,and will not cause road congestion.Trenchless pipe jacking construction can prevent water pollution,hich is beneficial to environmental protection and resource conservation.This article through to the future of Changchun city heating a network engineering conducted a detailed field investigation,according to the address of the project,the scene of the technical conditions and construction requirements,choose the trenchless pipe jacking construction method,and the design and the process of trenchless construction schemes for research and analysis,and then calculate the engineering of jacking force,was introduced in pipe jacking construction method,finally describes the concrete scheme of the construction.By analyzing the site situation of the project,the paper puts forward the corresponding measures to solve the existing problems,so as to make the trenchless construction of the project go on smoothly and provide reference for the following similar projects.