T/EJCCCSE 312-2025 Mine Shaft Drilling Machine Selection Technical Guidelines
T/EJCCCSE 312-2025 Mine Shaft Drilling Machine Selection Technical Guidelines
Basic Information
Scope
Main technical content: 1. Scope: This document specifies the models and basic technical parameters of coal mine tunnel drilling rigs (hereinafter referred to as drilling rigs), the selection of equipment and matching drilling tools, the determination of the equipment's external dimensions, and the selection criteria for drilling rig models. This document applies to the selection of tunnel drilling rigs for gas extraction, water discharge, geological exploration, and other applications in coal mines. 2. Main technical content: The main technical content of this guideline includes Article 4: Drilling Rig Models and Basic Technical Parameters, and Article 5: Drilling Rig Selection. 4. Drilling Rig Models and Basic Technical Parameters 4.1 Model Designation 4.1.1 Model Designation Standards 4.1.2 Structural Forms of Drilling Rig Models 4.1.3 Determination of Components of Drilling Rig Models 4.1.4 Model Examples 4.2 Main Basic Technical Parameters 5. Drilling Rig Selection 5.1 Basic Selection Principles 5.2 Confirmation of Site Construction Conditions 5.3 Selection of Drilling Tools 5.4 Determination of Drilling Rig External Dimensions 5.5 Selection of Drilling Rig Models