Research on key technologies of deep foundation pit support design
深基坑围护设计关键技术研究

摘要

随着房地产市场由过去的“高周转、扩规模、粗放式”增长模式转变为现阶段“保品质、保交楼、保利润”的高质量增长模式，我国城市化进程高速发展阶段过程中的建筑行业红利逐渐消耗殆尽，整个房地产行业进入了深度调整阶段。基坑围护工程因非永久性工程、技术复杂、破坏性大、危险性高、投资额大等特点，对项目的“降本增效”影响越大，建设单位越重视。在确保基坑安全、做好项目开发建设的前提下，做好项目基坑围护的设计选型，减少项目投资，扩大项目收益，成为建设单位在当前房地产市场深度调整阶段的研究重点、难点。

Abstract

As the real estate market shifts from the previous "high turnover, scale expansion, and extensive" growth model to the current high-quality growth model focused on "ensuring quality, ensuring delivery, and ensuring profits", the dividends of the construction industry during the rapid development stage of China's urbanization process have gradually been exhausted, and the entire real estate industry has entered a phase of in-depth adjustment. Due to the characteristics of being a non-permanent project, complex technology, high destructiveness, high risk, and large investment, foundation pit support engineering has a greater impact on the "cost reduction and efficiency increase" of the project, and thus has attracted more attention from construction units. On the premise of ensuring the safety of the foundation pit and well implementing the project development and construction, doing a good job in the design and selection of the project's foundation pit support, reducing project investment, and expanding project benefits have become the key research focuses and difficulties for construction units in the current phase of in-depth adjustment of the real estate market.