强夯法因其经济易行、效果显著、适用范围广等优点在地基处理工程中得到了日益广泛的应用。目前强夯施工时一般依据强夯技术规程采用测量夯沉量的方法来实时检测夯实程度，但现有的测量夯沉量的方法存在诸多弊端，为改变此现状，提出了利用强夯冲击时夯锤的加速度来实时检测强夯夯实程度的方法。首先建立强夯碰撞模型，通过理论分析推导出夯锤加速度与夯击次数的关系，然后依据相似原理搭建试验模型，进行模型试验得出数据验证，最后得出单击夯沉量和峰值加速度的相对变化百分比之间的相互关系，并提出以基于加速度的强夯效果实时检测设想，为施工中强夯加固效果实时检测提供新思路。
Abstract
With the advantage of economic, good effect and wide range of application, the dynamic compaction is widely used in ground construction. According to the technical regulations, ramming value measurement method is currently applied in real-time compaction degree detection, but the existing methods all have their defects. To solve the situation, come out the idea using the rammer impact acceleration to detect the compaction degree. Firstly, set up dynamic compaction math model and confirm the connection between acceleration and ramming times through theoretical analysis, then build the test model based on similarity theory, using experiment to prove the hypothesis, finally come to the conclusion that the relative change percentage of single ramming value and peak acceleration are associated, put forward the assumption detecting real-time compaction degree based on impact acceleration, thus provide a new way to detect the real-time compaction during the construction.
关键词
强夯 /
加速度 /
实时检测
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Key words
dynamic compaction /
acceleration /
real-time detection
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