大孔径矩形桩不跳桩开挖及其支护系统设计

深基坑桩孔开挖是近几年城市建设中经常涉及的技术难题,尤其是大孔径矩形桩土层开挖所涉及的开挖方法和支护措施,都对深基坑开挖提出了更高要求。本文从大孔径矩形桩孔土层不跳桩开挖施工方案、施工流程、支护系统设计及施工等方面作了详尽的阐述,在基坑支护理论与技术上取得了进一步的进展和可喜的成绩。

Excavation of large aperture rectangle non-jump pile as well as design of retaining system

Excavation of deep foundation pile is a frequently difficult technical problem related in municipal construction in recent years, especially the methods of excavation and measure of retaining in the excavation of soil layer of large aperture rectangle pile, which all lead a higher requirement to the excavation of deep foundation. This paper elaborated in detail the program of excavation construction, procedure of construction, and design and construction of retaining system for excavation of soil layer of the large aperture rectangle non-jump pile, made a further progress in the theory and technique of foundation retaining.