Sou Hu Cai Jing·2025-08-12 06:30Core Viewpoint - The project by China Energy Construction Prefabricated Building Technology (Badong) Co., Ltd. focuses on the construction of a prefabricated building and supporting industry project in Badong County, with a total investment of 1.6 billion yuan and an annual production capacity of 9 million tons [1] Group 1: Project Overview - The project includes a full industrial chain covering mining, aggregate processing, storage and transportation, and the production of prefabricated concrete components [1] - The expected annual output value after the mining system is put into operation is between 300 million to 500 million yuan, creating approximately 1,000 new jobs and promoting the coordinated development of multiple upstream and downstream industries [1] Group 2: Construction Challenges and Strategies - The 10-kilometer small-diameter transportation corridor is a critical engineering challenge for the project, with the project team adopting a strategy of "early planning, attention to detail, no rash actions, and ensuring safety" [3] - To address the construction pressure of the long tunnel, a "supporting tunnel + main tunnel" three-dimensional construction network was implemented, increasing work faces to enhance construction efficiency [6] Group 3: Efficiency Improvements - The project team optimized the design by increasing the cross-section size, which improved construction efficiency by 67% and reduced operational costs [4] - The use of dual-gun spraying machines instead of single-gun machines reduced support time from 4 hours to 2.5 hours, increasing daily progress from 6 meters to 9 meters [12] Group 4: Safety Measures - A comprehensive safety network was established, including monitoring, early warning, and response systems, with daily inspections by leading personnel to ensure safety at work sites [7][9] Group 5: Operational Planning - The project team implemented a monitoring system that integrates tunnel structure, transportation equipment, and processing units, conducting quarterly inspections to convert maintenance costs into preventive maintenance investments [13] - A peak and valley electricity pricing model was planned to reduce electricity costs for processing systems, potentially saving hundreds of thousands of yuan [15] Group 6: Energy Integration - The project aims to integrate mining resources with regional energy needs by planning distributed photovoltaic energy storage systems, which could significantly reduce external electricity costs [16] - The use of electric mining trucks for transporting raw materials is proposed to lower operational transportation costs [16] Group 7: Overall Management Approach - The project emphasizes seamless integration between construction and operation phases, promoting cost reduction and efficiency enhancement throughout the project's lifecycle [18]