Purpose: Methods for calculating soil freezing depth of high-speed railway subgrade are de-veloped given its multilayer structure. Methods: Existing methods calculation have been reviewed, advanced Berggren method HSR and numerically modeling temperature regime on the basis mathematical model moisture migration proposed. The reliability is confirmed by comparison with numerical simulation resul...

Due to the long-term effect of cyclic traffic loads, accumulated deformation red clay subgrades is increasing, strength decreasing, and problems such as uneven settlement are occurring. In order improve stability durability subgrade, this paper analyzes effects stress ratios compactness on development dynamic elastic modulus saturated clay. This achieved through triaxial tests in Qingyuan Count...

Concrete blocks are an alternative surface coating for road construction made of a mixture cement, filler and water. The that will be redesigned with pavement thickness is the DR. Moh. Hatta section Pasar Baru - Gate Unand Padang. This has uphill contour so conventional roads unable to withstand flow water falling down, causing puddles can damage construction. Pavement planning paving block on ...

Atmospheric precipitation leads to the increase of moisture in subgrade. The and soil migration subgrade is a key scientific problem evaluating service performance resolving or preventing mud pumping. Using self-developed testing system as well numerical simulation model, detailed study dynamic hydraulic characteristics, water mechanism, fine pumping properties was conducted. results showed tha...