Abstract: To solve the specific problem by using non conventional construction process confirmed that it is benefiial for quality assurance and quality control in the field.The So called non conventional process is not against conventional process or operation procedure but obeys the same principle and solve specific problems with specific treatment.It is also a useful aid to the conventional procedure

Key words: inverted arch method, concentration fill, sandgravel fill, abutment back fill

摘要： 用非常规的施工工艺来解决路基施工中的一些具体问题，在实践中证明对工程质量和进度的现场控制是有 利的。非常规工艺并非违背常规工艺或操作程序，而是在原理相同的前提下，本着具体问题具体对待的原则，对 常规工艺、程序及方法的又一补充

关键词: 倒拱法, 集中填筑, 砂砾填筑, 台背回填