In order to ensure the safety of engineering, it should be careful to use the test result of normal drilling sampling, the pitting sampling, shaft sampling, or double-tubles and thin-wall soil collecting methods should be used.

• 为保证工程安全，对常规钻孔取样试验成果的使用应当慎重，对重要工程宜采用探坑、竖井取样，或采用双筒薄壁取土技术。