Loess stratum tunnel collapse state detection method and treatment method after collapse

The embodiment of the invention provides a loess stratum tunnel collapse state detection method and a treatment method after collapse. The method comprises the steps that a breach reference position is determined firstly, and then a drilling tool is adopted to drill a detection hole according to the breach reference position; and in the drilling process, the drilling speed of the drilling tool fordrilling a solid soil body which does not collapse in a detection hole, the drilling speed of the drilling tool for drilling a loose soil body which collapses in the detection hole and the drilling speed of the drilling tool for drilling a cavity in the detection hole are different, therefore, the collapse range and the cavity in the loess stratum can be identified according to the drilling speedof the drilling tool in the detection hole, a basis is provided for subsequent collapse treatment, and the tunnel collapse treatment is more targeted and better in treatment effect. 本申请实施例提供一种黄土地层隧道塌方状态的探测方法及塌方后的处治方法，通过先确定溃口参