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基桩就是就地成孔灌注混融土的基础桩(又称灌注桩)。在基桩工程施工中,常常发生人身伤亡事故,因此对基桩工程作业条件进行危险性评价,以便及时采取预防和控制措施是很有必要的。一、基桩工程作业条件基桩工程作业条件包括三个方面:作业场所环境,机械设备的放置和灌桩工序。 (1)作业场所环境。施工场地狭小;采用旋转钻作业时由于使用冲洗液,场地不易保持干燥,排碴量大,操作人员行走困难;由于是露天作业,受自然条件的影响较大。 (2)机械设备的放置。机械设备包括成井设备、起重设备、混凝土搅拌设备、运
The foundation pile is the foundation pile (also called cast-in-place pile) that is filled with the mixed soil in the hole. In the construction of foundation piles, personal casualty accidents often occur. Therefore, it is necessary to perform risk assessment on the operating conditions of foundation piles in order to take timely preventive and control measures. I. Operating conditions of foundation piles The operating conditions of foundation piles include three aspects: workplace environment, placement of mechanical equipment, and pile-raising procedures. (1) Workplace environment. The construction site is small; when using rotary drilling, due to the use of rinsing fluid, the site is not easy to keep dry, and the amount of helium is large, and the operator is difficult to walk. Because it is an open-air operation, it is greatly affected by natural conditions. (2) Placement of mechanical equipment. Machinery equipment includes well completion equipment, lifting equipment, concrete mixing equipment, and transportation