# Application of construction site management based on digital twin and point cloud semantic segmentation technology

## TL;DR

This paper introduces a new system using digital twins and 3D point cloud technology to improve construction site safety during extreme weather.

## Contribution

The study integrates digital twin technology with RandLA-Net-based point cloud segmentation for construction site safety under extreme weather.

## Key findings

- A construction site point cloud identification system was developed to locate materials and machinery.
- The system identifies and analyzes risk factors in a digital twin model to optimize site layout.
- The approach enables rapid risk assessment and disaster prevention measures during extreme weather.

## Abstract

Construction sites are particularly susceptible to the effects of extreme weather, with unsafe items posing a significant risk of causing substantial damage to construction projects and neighboring communities. Furthermore, data regarding the materials, machinery, and buildings present at the site are frequently obtained through manual inspection or on-site photography before the advent of extreme weather conditions. This process is resource-intensive and time-consuming. The core innovation of this study lies in the integration of digital twin technology with RandLA-Net-based point cloud semantic segmentation, optimized specifically for construction site safety management under extreme weather conditions. To achieve systematic disaster preparedness for construction sites, this study explores the potential of utilizing three-dimensional (3D) point cloud technology in construction site management. This involves acquiring location information about materials and machinery on construction sites through the development of a construction site point cloud identification system. This system is designed to identify and analyze potential risk factors in the digital twin model of a construction site, thereby optimizing the site layout at all stages. Furthermore, it enables practitioners to rapidly identify, locate, and assess potential risk factors on-site, facilitating the prompt and effective implementation of measures to prevent extreme weather.