Calculation method of cloud island type station end horn mouth and related parameters thereof

Abstract

The invention provides a calculation method for protecting a cloud island type station end horn mouth and related parameters thereof. The shortest station end horn mouth length is obtained under the conditions that the comfort degree of passengers is guaranteed, the speed of a train is not limited or the influence is slight (the influence degree is less than 5%), and the length of a circular curveand a clamping straight line is not smaller than the length of one train (not smaller than the full axle distance under difficult conditions). The specific parameters of the horn mouth are set as follows: the radius R is equal to 400m, the relaxation curve length l is equal to 10m, the actual superelevation rate h is equal to 2 percent, the rotation angle theta is equal to 2 degrees, 52 minutes and 00 seconds, and the allowable passing speed V is equal to 45km / h; and the second curve parameters of the horn mouth are set as follows: the radius R is 500 m, the relaxation curve length l is 16 m,the actual superelevation rate h is 2.5%, the rotation angle theta is 2 degrees 52 minutes 00 seconds, and the allowable passing speed V is 60 km / h. Compared with the prior art, the method has the beneficial effects that the purposes of reducing the engineering investment and improving the landscape effect are achieved.

Description

technical field [0001] The invention relates to the field of urban rail transit line design, in particular to a method for calculating a bell mouth at a Yunba island type station end and related parameters thereof. Background technique [0002] The Yunba (rubber-tyred tram) system is a small-capacity urban rail transit, suitable for lines with a peak passenger flow of 0.2 to 10,000 people per hour, and generally adopts an elevated laying method. The length of the car is 7m (the head car is 8.3m), the marshalling method is generally 2 to 6 marshalling, and the common starting acceleration is 1m / s 2 . According to the inspection and calculation, island-type stations adopt 5m wide platforms to meet the passenger flow collection and distribution capacity of general stations. Taking the first phase project of Shenzhen Pingshan Yunba Line 1 and Shenzhen Longgang Yunba Line 1 project as examples, all stations adopt platform widths of 5m island type station, station line spacing i...

AI Technical Summary

Problems solved by technology

The disadvantage of this scheme is: the bell mouth passes at a low speed, which reduces the travel speed of the line

[0008] Both the existing technical scheme 1 and the technical scheme 2 do not carry out detailed calculations on various curve parameters in combination with passenger comfort and train running speed, so there are problems of long bell mouth or vehicle speed limit

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