大口径电力顶管最小许用曲率半径取值研究

Research on Minimal Curve Value of Electrical Pipe Jacking with Large Diameters

曲线顶管是顶管技术发展的主要技术方向,基于电力电缆工程顶管的实际需求,结合现有规程规范及施工技术条件,计算相应口径顶管在不同技术措施条件下的最小曲率半径,为工程方案制订提供依据,同时提出相应的大口径电力顶管曲线顶进构造措施和应用原则,为方案实施进一步提供技术支撑。

The curve jacking technical is the mainly development direction of pipe-jacking, base on the needs of the electrical cable tunnel and the cords or the standards of the pipe jacking construction requirement, this paper calculates the minimal curvature radius of the different diameters with various kinds of assisted measures, to provide references for similar construction planning and design. In the mean time, this paper proposes the construction measures and application principle of the curve pipe jacking in HV cable tunnel, and provides technical support for the implementation of the program.