Research On The Design Index Of Solidified Soil Pavement Before Drilling On Oil Field Wellsite In Sichuan-Chongqing Area

With the development of the national economy,the development of the western region has drawn more and more attention.However,because of the vast territory of China,there are great differences in geological and environmental conditions in different regions.In the oilfield well site,the design indicators about road pavement before drilling should also follow the pace of national development.According to the local actual situation,the design and construction of the road pavement before drilling in the oilfieds of Sichuan and Chongqing areas also shifted from the traditional pavement design and construction to a more environmentally friendly and economical curing construction method.The old design indicators can no longer meet the new requirements.Road pavement appeared all kinds of damage.This paper analyzes the domestic and foreign flexible pavement structure design indicators,the application of solidified soil in road projects,and the impact of heavy-duty vehicles on the pavement structure,combining the new construction method used in road pavement before drilling in the oilfied well site in Sichuan and Chongqing areas.Finally,the existing problems and deficiencies in the design method of the road pavement before drilling in the oilfied in Sichuan-Chongqing region are presented.Relying on the actual project as a research background,the destruction pattern of the road pavement before drilling in oilfied well site in the Sichuan-Chongqing region was analyzed and summarized after the completion of the project.Based on it,the direction of research is determined with the deflection and bottom layer tensile stress of pavements as the main design indicators.According to the actual situation of the pre-drill road structure and pavement materials in the oilfield well site of the Sichuan-Chongqing area,the actual situation was simulated and analyzed using finite element software.The variation law of the deflection and bottom layer tensile stress of pavements at the change of various design parameters is summarized.And base on the law of change,the design indicators is proposed.