Design method for HDPE pipe launching track

Abstract

The present invention relates to the technical field of HDPE pipeline launching, and specifically relates to a construction method for an HDPE pipe launching track, comprising the following steps: S1, acquiring calculation parameters of HDPE pipe sections and ballast blocks; S2, calculating the total weight and draft H of the HDPE pipe sections; S3, constructing a pipe model; S4, using the pipe model constructed in S3 to simulate front-end water entry conditions of the HDPE pipe sections when operating on tracks with different slope ratios, and rear-end back‑pressure conditions of the HDPE pipe sections during slope departure, under different tidal water levels; determining a maximum trolley reaction force N1 during a water entry process of the HDPE pipe sections, and a rear-end trolley reaction force N2 during a slope departure process of the HDPE pipe sections; S5, comparing N1 and N2 with a trolley working load N0, and if N1≤N0 and N2≤N0, which indicate that the slope ratio design of this track section passes verification, performing the next step; otherwise, adjusting the slope ratio of this track section, and repeating S4 until this track section satisfies N1≤N0 and N2≤N0; and S6, repeating S4 and S5 until all track slope ratios have passed the verification. The method achieves reasonable distribution of track slope ratios by refining the slope ratio adjustment strategy.

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