Geotechnical properties of cohesive soils used in the construction of subgrade for the development of the railways in the Azov-Black Sea region  

作　　者：Maksim Okost Vladimir Shapovalov Andrey Morozov Andrey Vasilchenko Andrei Kochur Victor Yavna 

机构地区：[1]Rostov State Transport University,2 Narodnogo Opolcheniya Sqr.,Rostov-on-Don,Russia

出　　处：《International Journal of Transportation Science and Technology》2024年第2期237-257,共21页交通科学与技术(英文)

基　　金：supported by the Russian Science Foundation(Grant No.21-79-20005).

摘　　要：This work is devoted to the determination and systematization of the properties of clay soils used in the construction of new railway tracks in order to develop the railway network in the Azov-Black Sea region of Russia.To this end,classification characteristics are determined by traditional laboratory methods,and the possibility of soil swelling under excessive moisture is estimated.In addition,the compressibility of soils is studied as the main factor ensuring the trouble-free operation of the subgrade of railways during their long-term operation.Soil samples for measurements were taken from open pits located near construction sites at an extended length of construction of 530 km.The new regression relations proposed in the work provide in some cases the accuracy of determining the soil characteristics close to the accuracy of laboratory tests.They may be in demand when monitoring the accuracy of laboratory tests of soil properties of other open pits and increasing the speed of pre-design surveys during further development of the railroad network in this region.

关 键 词：SUBGRADE Cohesive soil Classification COMPRESSIBILITY Laboratory test 

分 类 号：S15[农业科学—土壤学]