22-08-2023 дата публикации
Номер: CN116629129A
Принадлежит:
The invention provides a method for judging a blocking state in a tubular pile sinking process, which comprises the following steps: in the tubular pile sinking process, a soil plug is subjected to combined action of downward gravity G, downward friction force F of a pile and upward supporting force N of a soil layer on the bottom surface of the soil plug, and the gravity G of the soil plug is smaller than the friction force F and the supporting force N and is neglected in the process; by obtaining and comparing the friction force F, the supporting force N and the critical acting force N0 of the soil layer at the bottom of the soil plug to the soil plug, the blocking effect exerting process during pile sinking of the tubular pile is divided into three states, namely the non-blocking state, the partially-blocking state and the completely-blocking state; when Ngt; when N0 is greater than or equal to F, a non-blocking state is achieved; when Ngt; fgt; when N0 is greater than N0, belonging ...
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