在近几年的建筑施工中,人工挖孔桩以受力性能可靠,施工操作工艺简单,无环境污染,造价低廉等优点,在各地应用较为普遍.但是人工挖孔桩同时是深基础施工,在作业时经常遭受很多不安全因素的危害,如塌方、地下水、落物、流沙等,若做不好施工防护措施工作,就很容易在施工过程中发生事故.本文阐述了可能发生的事故的种类、原因及防护措施.%In construction of recent years, artificially excavating pile has the advantages of reliable mechanical properties, simple construction, no environmental pollution and low cost, it is widely used in many areas.But artificially excavating piles in deep foundation will encounter many unsafe factors such as collapse, underground water, falling objects and quicksand.If construction preventive measures are not done well, accidents will easily happen in construction.This aflicle presents possible accident types, causes and preventive measures.
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