钻孔灌注桩结构顶管井设计及应用探讨

Exploration on design and application of pipe jacking work well using bored cast-in-place pile as supporting structure

本文以青草沙凌桥支线某顶管工作井设计为实例，阐述了采用钻孔灌注桩与水泥搅拌桩相组合的围护方案，并通过合理的支撑体系布置和计算，满足顶管施工的需求，达到结构可靠、经济合理。

In this article, Qingcaosha Lingqiao extension, a pipe jacking shaft designed to work well as an example, described using bored cast-in-place pile and soil-cement mixed diaphragm pile combinations of the envelope relative to supporting systems and calculations to meet the demand for pipe jacking ,at the same time it achieved the structure, reliable, economical and reasonable.