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60年代的高速公路建设,正式开始采用石灰稳定高含水量粘性土。其后,随着施工机械的开发,设计方法研究的进步,对其经济性一般有所认识了。这样稳定处理的施工方法,不只限于在高速公路工程,现在已经扩大到其它工程并进行了新的试验。例如:软弱地基上埋设管道的基础地基改良,或现场拌和方式施工的回填土改良,还有若干不符合标准的路基材料的再生利用都使用起来了。且以前,施工方法以现场拌和为主,由于碎石设备和沥青混凝土拌和厂机械的有效利用,而提出了许多经济施工方法(图1)。
60 years of highway construction, the official began to use lime stable high water content of clay. Since then, with the development of construction machinery, research advances in design methods have generally recognized their economics. This stable approach to construction is not limited to highway engineering and has now been extended to other projects and new tests have been conducted. For example, the improvement of foundation foundations on buried pipelines on soft foundations, the improvement of backfill soil for on-site mixing construction, and the reuse of substandard subgrade materials are all used. In the past, the construction method mainly consisted of on-site mixing. Many economical methods of construction were proposed due to the effective utilization of mechanical equipment for gravel machines and asphalt mixing plants (Figure 1).