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目前高速公路中央分隔带波形梁护栏立柱的实际设置中,普遍存在着由于分隔带地基强度低于压实路基,护栏立柱承载能力偏低,护栏的防护性能达不到设计要求的问题。本文对粘性土地基中立柱的受力情况进行了分析,并对地基为压实土与回填土两种情况进行了对比,给出了中央分隔带中立柱地基的加固方案。
At present, there is a common problem in the actual setting of the guardrail of the guardrail with the central divider of the freeway that the protective strength of the guardrail fails to meet the design requirements due to the fact that the strength of the divider zone is lower than that of the compacted embankment and the bearing capacity of the guardrail is low. In this paper, the stress of columns in clay soil is analyzed, and the compaction of soil between the compaction soil and backfill soil is compared. The reinforcement scheme of the center column with central separation zone is given.