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文章通过分析湿陷性黄土的结构组成和强度参数,对强夯加固技术在湿陷性黄土路基中的应用做了研究。对强夯原理、加固机理、设计计算以及施工技术进行了详细阐述。针对山西某湿陷性黄土路基的实际情况,采用强夯加固技术进行处理,并对加固效果进行检测。结果表明:采用压缩量最大、隆起量最小的原则确定有效夯击次数,影响深度超过填土高度2m左右,压缩模量较原有路基提高了大约50%。
By analyzing the structural composition and strength parameters of collapsible loess, the paper studies the application of dynamic compaction reinforcement technology in collapsible loess roadbed. The dynamic compaction principle, reinforcement mechanism, design and calculation and construction technology are described in detail. According to the actual situation of a collapsible loess roadbed in Shanxi Province, it is treated with dynamic compaction reinforcement technology and the reinforcement effect is tested. The results show that the effective compaction times are determined by the principle of the maximum compression and the minimum crowning, and the influence depth is about 2m higher than the height of the fill. The compressive modulus is increased by about 50% compared with the original embankment.