In the construction of traffic engineering,especially in the eastern part of Qinghai Province,the highway route passes through the loess zone with collapsible characteristics,which brings a lot of inconvenience to the design and construction.The builders often have to spend a lot of energy and cost to solve the collapsible loess problem.In engineering construction,the loess that cannot be directly used for subgrade filling is generally aban-doned and replaced with other subgrade filling with better performance,or relevant measures are adopted in areas where it is difficult to get soil and then used for subgrade filling after improvement.If abandoned directly,although able to solve the problem facing the roadbed construction,but also lead to environmental destruction and the waste of land resources,the high cost of a series of adverse effects,in this paper,in combination with the practical situa-tion of large pool ping road cement improved soil are mainly introduced the economic and social benefits of overall evaluation ideas and methods,to provide reference for future similar projects.
维普
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