Calculation of the Interior Force of Soil Nails and Case Analysis

On the basis of analyzing the current design and calculation methods of soil nail, the authors point out their deficiency and put forward a new method based on limiting equilibrium. To check the reliability of this method, an in-situs test of the interior force of soil nail in a practice engineering was made. The measured results show that the actual force of the nail is only a eighth of the result from the current calculation method. But the proposed method by the authors can produce very close result to the in-situs measured ones.