Bài viết Quan trắc đường ray tàu điện trong các mỏ than hầm lò bằng công nghệ quét laser 3D mặt đất trình bày kết quả quan trắc đường ray tàu điện trong mỏ than hầm lò bằng công nghệ quét laser 3D mặt đất (TLS). Quy trình ứng dụng đã được nhóm nghiên cứu đề xuất và áp dụng, bắt đầu từ thiết kế phương án; thu thập dữ liệu trên thực địa trước khi được xử lý dữ liệu và đưa ra kết quả đánh giá. | Journal of Mining and Earth Sciences Vol. 64 Issue 2 2023 91 - 100 91 Monitoring tram rail transport in underground coal mines using terrestrial laser scanning Chung Van Pham 1 Canh Van Le 1 Long Quoc Nguyen 1 Ha Thu Thi Le1 Anh Tuan Nguyen 2 Hung Van Nguyen 2 Hung Viet Nguyen 3 1 Hanoi University of Mining and Geology Hanoi Vietnam 2 Topcon Singapore Positioning Pte. Ltd 3 University of Transport and Communications Hanoi Vietnam ARTICLE INFO ABSTRACT Article history Tram rail transport is one of the important transport systems in Received 12th Jan. 2023 underground coal mines. The stability of the tramway system in a mine Revised 14th Apr. 2023 is influenced by many factors such as geological and mining conditions. Accepted 26th Apr. 2023 In order to evaluate the stability of tramway tracks in underground coal Keywords mines monitoring activities are carried out periodically. This activity is Deformation to provide accurate data on the current status of the rail system early Displacement detection of displacement and deformation of the system. This paper presents the results of monitoring tram tracks in underground coal TLS mines by the terrestrial laser scanning technology TLS . The objective Tram rail transport monitoring of the study are to evaluate the capacity of TLS in monitoring tram Underground coal mine. tracks in underground coal mines and to propose a workflow for this activity. The experiment was held at the tramway in the main transport tunnel at the level of -350 m in the Nui Beo underground coal mine. A procedure was proposed including the planning collecting data in the field data processing and analyzing data. The surveing equipment was used including 1 a Topcon GLS 2 000 scanner for the TLS survey 2 Digital leveling for measuring the elevation of the rails 3 a tape for measuring the distance between the rails. The measurement of the distance between two railway lines were performed on the TLS point cloud. The comparison between TLS and the tape
