顶管穿江隧道探孔封堵技术研究

Technology Research of Exploration hole plugging Of Pipe Jacking Tunnel under River

通过对顶管施工探孔封堵技术的系统研究，结合富春江顶管工程探孔及岩石层大裂隙封堵实例，介绍了复杂地质条件下富春江顶管探孔封堵技术。江中探孔或岩石层大裂隙的成功封堵为高水压条件下顶管施工刀具检查更换创造了较为安全的施工环境，为其他顶管工程施工中的探孔、裂隙封堵方法提供了参考。

By means of pipe jacking exploration hole plugging technology system research and the basis of Fuchunjiang pipe jacking engineering exploration hole and rock layer crack closure example, introduced the complex geological conditions under Fuchunjiang pipe jacking exploration hole plugging technology. River exploration holes or rock layer crack for successful closure under the condition of high pressure pipe jacking tool check replacement to create a safer environment for the construction, provides a reference for other pipe jacking engineering construction in the probe hole, fissure sealing methods.