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高层建筑多设有地下室甚至多层地下室,基础埋深较大,因而在高层建筑施工中基础占据很重要的地位,尤其是在一些软土地区更是关键,因为在施工中它往往是技术上较难处理的一部分。它与结构形式、地质、水文、开挖深度、挖后留置的周期长短、周围环境及堆载等施工条件有关。近几年深基坑护层发展较快,这里仅就大开挖深基坑边坡确定和铅丝网水泥护层的设计简介如下:
High-rise buildings often have a basement or even a multi-story basement, and the foundation is buried deep. Therefore, the foundation occupies an important position in the construction of high-rise buildings, especially in some soft soil areas, because it is often technically The harder part to handle. It relates to structural conditions, geology, hydrology, depth of excavation, length of period of detention after excavation, and surrounding conditions and surcharges. In recent years, the development of the deep foundation pit protection layer has been rapid. Here only the design of the deep excavation for the large excavation slope and the design of the lead wire mesh cement sheath are summarized as follows: