Abstract
This paper selects appropriate vehicle as the standard vehicle and designs its shape. Secondly, it chooses some control point on the vehicle according to the current standard. Thirdly, the essay sets four difficult operating conditions with different curve radius and superelevation, simulates on the SIMPACK software and compares the value of control points offset the centre of railway line to the current construction clearance. According to the result of comparison, this paper divides transition curve into three parts to widen construction clearance and proposes the definition of correction coefficient. At last, the paper compares construction clearance that has been corrected with existing construction clearance to check whether the new one is right or not. The study shows that if curve part is divided into three parts to widen construction clearance, it would be more reasonable and satisfactory.
Highlights
Nowadays, the out of gauge goods relay on railway to transport, and it has put forward higher requirements for railway construction clearance
When a train is running on the curve line, the bogie of the vehicle can rotate around the centre of the vehicle, but the body cannot be bent along with it
The superelevation on curve line causes the entire vehicle tilt toward the inside of the curve, which has an impact on the clearance
Summary
The out of gauge goods relay on railway to transport, and it has put forward higher requirements for railway construction clearance. This paper focus on how to refine the widening range and widening value of the current widening standard so that it can fully meet the requirements of modern railway transportation. When a train is running on the curve line, the bogie of the vehicle can rotate around the centre of the vehicle, but the body cannot be bent along with it. Both ends of the vehicle will be offset from the outer line of the curve away from the line centreline, and the centre of the vehicle will deviate from the centreline of the line to the inside of the curve. On the curve line, the distance between the centreline of two adjacent lines and the safety distance between the centreline of the line and the buildings on the roadside should be calculated in accordance with the widening
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