The angle of repose and volume of granular piles are important measures in many fields. This letter presents a new method for rapid estimation of the angle of repose and volume of grain piles using terrestrial laser scanning data acquired from a single site. Compared with some existing methods that require point cloud registration and surface reconstruction, the proposed method is simple and easy to use. Results from 12 buckwheat and corn grain piles suggest that the method is efficient and effective, especially when the point spacing is 3.1 mm. A relative error of less than 5% can be achieved for volume estimation of buckwheat and corn piles. The method can be applied to the estimation of the angle of repose and volume of other cone-shaped granular piles, under different environmental conditions.

休止角和颗粒桩的体积是许多领域的重要措施。这封信提出了一种使用从单个站点获取的地面激光扫描数据快速估算休耕角和谷物堆体积的新方法。与一些需要点云配准和表面重构的现有方法相比，该方法简单易用。12个荞麦和玉米谷物堆的结果表明，该方法是有效的，尤其是在点距为3.1 mm时。对于荞麦和玉米堆的体积估计，可以实现小于5％的相对误差。该方法可用于不同环境条件下其他锥形颗粒桩的休止角和体积的估算。