轻重两用型大型击实仪的仪器结构和使用方法

摘要

普通标准击实仪不适用于含大粒径粗粒土,野外施工有时没有动力电源。为了满足工程需要,研制了一种轻重两用型大型击实仪,仪器主要由底板、击实筒、穿心击实锤、穿心抓体、落锤高度控制装置和其它辅助装置组成。击实仪的击实筒装置旋转,提锤和落锤装置不旋转,提锤并自动控制落锤部件采用自动脱钩自由落锤,提锤动力采用柴油发动机勘察钻机卷扬。实际使用结果表明,能满足大型击实试验的需要,有一定的工程应用价值。%For common standared compaction device is not suitable for large-size coarse-grained soil,and once there is no power during field construction,in order to satisfy the needs of construction,a large dual-purpose（light heavy） compaction device is developed and produced,which is composed of baseboard,compaction cylinder,cross-core compaction hammer,cross-core catch body,control device of drop-hammer height and other accessory devices.The compaction cylinder is able to rotate,but the lift hammer and drop hammer are not.Automatic decoupling and free drop hammer are used for the parts lifting the hammer and controlling the drop hammer freely.The lift hammer could be winded by surveying rig with diesel motor.The actual application results show that this compaction device can satisfy the needs of large compaction tests and has a certain engineering application value.