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文章通过室内无侧限抗压强度、CBR承载比、回弹模量试验,为天津空客A320配套工程公路建设使用土壤固化剂处理路基确定了施工方案和保证施工质量的控制指标:现场土添加4%石灰和路邦土壤固化剂的无机稳定土做路床处理时,当压实度大于90.0%,其抗压强度可大于0.80MPa;现场土添加2%水泥、3%石灰和路邦土壤固化剂做底基层无机稳定土时,压实度达到95.5%以上则无侧限抗压强度可满足1.5MPa的要求;现场土添加3%水泥、3%石灰和路邦土壤固化剂做公路基层无机稳定土时,无侧限抗压强度若要达到2.5MPa,压实度必须控制在97.6%以上。试验总结出的无侧限抗压强度与压实度的关系曲线,可以为道路施工中的质量控制提供参考。
Through indoor unconfined compressive strength, CBR load-bearing ratio and rebound modulus test, the paper has determined the construction scheme and the control index to ensure the construction quality for the road construction of Tianjin Airbus A320 supporting road construction using soil curing agent: 4% lime and road state soil curing agent of inorganic stabilized soil for roadbed treatment, when the compaction degree is greater than 90.0%, the compressive strength can be greater than 0.80MPa; 2% of the soil to add soil cement, 3% lime and road state soil Curing agent to do the bottom of the inorganic stable soil, the compaction degree of 95.5% or more, then the unconfined compressive strength can meet the requirements of 1.5MPa; 3% on-site soil cement, 3% lime and road state soil curing agent to do the road base Inorganic stabilized soil, unconfined compressive strength to reach 2.5MPa, compaction degree must be controlled at 97.6% or more. The curve of the unconfined compressive strength and compaction degree summarized in the experiment can provide a reference for the quality control in road construction.