For the sediment of stake tip which were exceeded the range of criterion provided, this article put forward techigue of applies metathesis method in dealing with the sediment on stake tip, It can overcome low intesity of shortcomings of traditional hand method, also avoid harmful consequence of time limit for the construction, high cost as span handling.

Laboratory experiment study on the ballast and ventilated railway embankment in permafrost regions;

Test and Study on Ballast Elasticity and Accumulated Deformation;

Effects of Ballast Thickness on Rail Track Structure;

According to the in situ environments of deep copper mines, the authors have developed new types of underway LHD roads, including a cement mine waste concrete road, a plaster mine waste concrete road, a composite jelling agent ore powder concrete road and a block mine waste rolled road, ensuring high intensity underway transport.