隧道初支高性能喷射混凝土数据集

喷射混凝土高性能化制备技术研究相关试验数据，包括配合比参数对喷射混凝土性能影响规律分析；矿物掺合料、膨胀剂、粗骨料尺寸、速凝剂种类及掺量、早强材料复合使用以及保水组分对喷射混凝土性能影响等试验数据。常规环境高性能喷射混凝土、高地热隧道隔热耐热喷射混凝土现场试验、高地应力隧道增韧抗冲喷射混凝土室内试验及工程应用、富水隧道高早强高抗渗喷射混凝土现场试验的相关测试数据。参照《普通混凝土力学性能试验方法标准》（GB/T 50081-2019）测试喷射混凝土的抗压强度、耐热指数等性能；参照《普通混凝土长期性能和耐久性能试验方法标准》（GB/T 50082-2009）测试喷射混凝土的电通量、干燥收缩率、抗冻性等。委托高速铁路轨道系统全国重点实验室进行检测。采用压力试验机、电通量测定仪、千分表、抗渗仪等设备采集试验数据。所有试验操作和数据记录严格遵守国家、行业相关标准规范。所有涉及环境的试验，必须在标准恒温恒湿养护箱或环境模拟箱中进行，确保环境温度的精确控制和稳定。本项目部分原始数据可用于隧道初支高性能喷射混凝土的创新研发。Experimental data related to the research on high-performance preparation technology of shotcrete, including the analysis of the influence laws of mix proportion parameters on shotcrete performance, as well as experimental data on the effects of mineral admixtures, expansive agents, coarse aggregate sizes, types and dosages of accelerators, combined use of early-strength materials and water-retaining components on shotcrete performance. Relevant test data cover field tests of high-performance shotcrete in conventional environments, heat-insulating and heat-resistant shotcrete for high-geothermal tunnels, laboratory tests and engineering applications of toughness-enhancing and impact-resistant shotcrete for high-geostress tunnels, and field tests of high-early-strength and high-seepage-resistant shotcrete for water-rich tunnels. Performance indicators such as compressive strength and heat resistance index of shotcrete were tested in accordance with Standard for Test Methods of Mechanical Properties of Ordinary Concrete (GB/T 50081-2019); Electric flux, drying shrinkage rate, freeze-thaw resistance and other properties of shotcrete were tested in accordance with Standard for Test Methods of Long-term Performance and Durability of Ordinary Concrete (GB/T 50082-2009). Testing was entrusted to the State Key Laboratory of High-Speed Railway Track System. Test data was collected using equipment such as compression testing machines, electric flux testers, dial gauges and permeability testers. All test operations and data recording strictly comply with relevant national and industrial standards and specifications. All environment-related tests must be conducted in standard constant temperature and humidity curing chambers or environmental simulation chambers to ensure precise control and stability of environmental temperature. Part of the original data from this project can be used for the innovative research and development of high-performance shotcrete for tunnel primary support.

搜集汇总

背景与挑战

背景概述

该数据集聚焦于隧道初支高性能喷射混凝土的制备技术研究，包含配合比、材料掺量等对混凝土性能影响的试验数据，以及常规、高地热、高地应力、富水隧道环境下的现场和室内测试结果，依据国家标准测试抗压强度、耐久性等指标。数据来源于2021年至2024年的研究，资助于川藏铁路相关项目，旨在支持高性能喷射混凝土的创新研发和工程应用。