Tunnel pavement slope section uncured film layer spraying control method based on a generative model

By constructing a slope migration risk condition map and quantile distributed risk characterization through generative modeling, the problem of reliable identification and consistency of the risk of exposed substrate in the spraying control of uncured membrane layer on tunnel pavement slopes was solved, and the executability and consistency closed-loop determination of spraying control were realized.

CN122260872BActive Publication Date: 2026-07-21NANJING TECH UNIV +1
View PDF 2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NANJING TECH UNIV
Filing Date
2026-05-25
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing methods for controlling the spraying of uncured membrane layers on tunnel pavement slopes cannot simultaneously integrate slope aspect and gradient distribution, local low-point confluence markers, spray overlap frequency markers, and slope change location markers within the same coordinate reference. This makes it difficult to reliably identify the risk of exposed substrate and control spraying consistency.

Method used

Based on the generative model, a slope grid coordinate benchmark is established using three-dimensional geometric data and nozzle travel trajectory data. A slope migration risk condition map is constructed, and an exposed tail risk map is output through quantile distributed risk characterization. This drives the iterative update of the target spray dose map, forming executable flow rate and travel speed settings, and realizing closed-loop delivery of spray control.

Benefits of technology

It improves the controllability and interpretability of slope spraying schemes regarding the risk of soil exposure, reduces dosage allocation deviations introduced by inconsistencies in coordinates of multi-source data, and achieves executability and consistency closed-loop determination of spraying control.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122260872B_ABST
    Figure CN122260872B_ABST
Patent Text Reader

Abstract

The application discloses a tunnel pavement slope section uncured film layer spraying control method based on a generative model, establishes a slope grid coordinate reference under the condition of three-dimensional geometric data and nozzle walking track data, calculates slope direction slope distribution, confluence identification, overlapping frequency identification, slope change identification, and fuses to form a migration risk condition graph, inputs the migration risk condition graph into a consistency generation model to generate a candidate spraying dose graph, embeds a quantile distribution type Q evaluator in a consistency update link to obtain a bottom exposure tail risk graph and calculate sensitivity, iteratively updates the target spraying dose graph under the risk threshold constraint, converts the target spraying dose graph into unit area dose and converts it into spraying equipment flow setting and advancing speed setting, generates a control instruction in combination with risk partition limit values, and completes spraying consistency determination based on actual flow and actual speed, realizes closed-loop control, and reduces the bottom exposure risk.
Need to check novelty before this filing date? Find Prior Art