前言 日本国营铁路制订的“土构筑物设计规范”的解释中介绍了落球式填土强度测定仪。它是用重锤从一定高度落在基床底层或表层时的表面沉降量和加速度所确定的强度,代替地基系数K_(30)(日本工业标准JISA 1215),以检查基床部分的强度和均匀性,达到快速施工的目的。该方法已在数处填土施工现场进行了连续 Preface The interpretation of the “Code for Design of Earthen Structures” formulated by the Japanese state-run railway introduces the ball-drop filling strength tester. It uses the strength determined by the surface settlement and acceleration when a hammer falls from a certain height to the bottom or top of a bed to replace the foundation factor K_ (30) (Japanese Industrial Standard JISA 1215) to check the strength of the bed part and Uniformity, to achieve the purpose of rapid construction. The method has been carried out in several filling construction site continuous