了解岩石在实时高温和三维应力作用下的力学特性对干热岩石的热提取至关重要。该数据集主要研究温度和水平应力对花岗岩强度和变形行为的影响。利用自行研制的实时高温真三轴试验系统，对花岗岩试样进行了实时高温下的一系列三轴压缩试验。\n
试验结果表明：（1）随着温度的升高，花岗岩的力学性能呈现先升高后降低的趋势，其力学性能受实时高温、水平应力和矿物组成的影响。（2）在低水平应力条件下，花岗岩在室温下的脆性破坏特征随着应力和温度的升高而减弱。（3）对花岗岩试样断口形貌的观察表明，随着温度的升高，黑云母矿物产生了增韧作用，这是高温下岩石脆性降低和力学增强的重要因素。（4）对比实时高温与高温预处理对黏聚力和摩擦系数的影响，实时高温预处理对黏聚力的影响更大，而摩擦系数差异不大。试验结果为了解温度和应力对花岗岩力学性能的影响提供了新的思路。", "ds_source": "
数据来源于试验实时测量。", "ds_process_way": "
利用自行研制的实时高温真三轴试验系统，对花岗岩试样进行了实时高温下的一系列三轴压缩试验。", "ds_quality": "
数据质量良好。", "ds_acq_start_time": "2019-08-01 00:00:00", "ds_acq_end_time": "2019-08-31 00:00:00", "ds_acq_place": "湖北武汉", "ds_acq_lon_east": null, "ds_acq_lat_south": null, "ds_acq_lon_west": null, "ds_acq_lat_north": null, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "apply-access", "ds_total_size": 311288, "ds_files_count": 3, "ds_format": "excel", "ds_space_res": null, "ds_time_res": "", "ds_coordinate": "无", "ds_projection": "", "ds_thumbnail": "f860c807-4651-41a7-aff3-2bc3a187f8dd.jpg", "ds_thumb_from": 2, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "为保障平台科技资源的权益、扩展平台中心的服务、提升科技资源的应用潜力，请资源使用者在使用资源所产生的研究成果中（包括公开发表的论文、论著、数据产品和未公开发表的研究报告、数据产品等成果），明确注明资源来源和资源作者。", "ds_from_station": null, "organization_id": "57a5e5a3-6fc5-43b5-a2ba-1f2ca54b7727", "ds_serv_man": "敏玉芳", "ds_serv_phone": "0931-4967596", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "", "subject_codes": [ "170.45" ], "quality_level": 3, "publish_time": "2023-04-27 10:46:00", "last_updated": "2023-07-08 02:10:03", "protected": false, "protected_to": "2025-01-01 00:00:00", "lang": "zh", "cstr": "11738.11.NCDC.NIEER.DB2794.2023", "i18n": { "en": { "title": "Mechanical property data set of granite under real-time high temperature and three-dimensional stress", "ds_format": "", "ds_source": "
<pre><code> <p>&emsp;&emsp; The data comes from the real-time measurement of the test.\n <pre><code> <p>&emsp;&emsp; The data quality is good.\n <pre><code> <p>&emsp;&emsp; Understanding the mechanical properties of rocks under real-time high temperature and three-dimensional stress is crucial to the thermal extraction of dry hot rocks. This data set mainly studies the influence of temperature and horizontal stress on the strength and deformation behavior of granite. A series of triaxial compression tests were carried out on granite samples at real time and high temperature using a self-developed real time high temperature triaxial test system.\nThe test results show that: (1) With the increase of temperature, the mechanical properties of granite show a trend of first increasing and then decreasing, and their mechanical properties are affected by real-time high temperature, horizontal stress and mineral composition. (2) Under the condition of low horizontal stress, the brittle failure characteristics of granite at room temperature weaken with the increase of stress and temperature. (3) The observation of the fracture morphology of granite samples shows that with the increase of temperature, biotite minerals have toughened, which is an important factor for the reduction of rock brittleness and mechanical strength at high temperatures. (4) Compared with the effect of real-time high temperature pretreatment and high temperature pretreatment on cohesion and friction coefficient, real-time high temperature pretreatment has a greater effect on cohesion, but the friction coefficient has little difference. The test results provide a new idea for understanding the influence of temperature and stress on the mechanical properties of granite.
", "ds_time_res": "", "ds_acq_place": "Wuhan, Hubei", "ds_space_res": "", "ds_projection": "", "ds_process_way": " <pre><code> <p>&emsp;&emsp; A series of triaxial compression tests were carried out on granite samples at real time and high temperature using a self-developed real time high temperature triaxial test system.\n