Method for predicting stability of weathering tank of subsea tunnel under action of typhoon waves

The invention relates to a method for predicting the stability of a weathering groove of a subsea tunnel under the action of typhoon waves. The working principle of the method is as follows: when waves continuously act on a soil body of the weathering tank, on one hand, wave pressure causes collapse force in the weathering tank, on the other hand, self gravity of the weathering tank also forms the collapse force, the strength of the soil body of the weathering tank is attenuated by circulating pressure, and the attenuated soil body has anti-collapse force to prevent collapse of the weathering tank. And if the anti-collapse force is smaller than the collapse force, the weathering groove collapses and loses stability. The device has the advantages of being simple in structure, reliable in result and convenient to use. 本发明涉及一种台风波浪作用下海底隧道风化槽稳定性预测方法。该方法的工作原理是，当波浪持续作用在风化槽土体上时，一方面波浪压力在风化槽引起了滑塌力，另一方面风化槽自身重力也组成了滑塌力，循环压力使得风化槽土体出现强度衰减，衰减后土体强度具有的抵抗滑塌力阻止风化槽滑塌，若抵抗滑塌力小于滑塌力时，风化槽出现滑塌，失去稳定。本发明具有结构简单、结果可靠和使用方便的优点。