本数据集为不同岩性、初始孔隙率、加载速率下堆石料的单向压缩试验数据以及不同围压、湿化应力水平下的三轴湿化试验数据。\n在本数据集中包括“TEST_1.txt”、“TEST_2.txt”两个文件：其中“TEST_1.txt”包括：不同初始孔隙率、加载速率下弱风化花岗岩和强风化砂岩堆石料竖向应力和孔隙率的变化关系；“TEST_2.txt”包括：不同围压和应力水平下弱风化花岗岩堆石料轴向应变~轴向应力~体积应变间的关系。", "ds_source": "
本数据基于南京水利科学研究院研制的大型固结仪和大型劣化仪的试验获得。", "ds_process_way": "
通过大型固结仪的量测系统采集荷重及位移数据，进一步转化为竖向应力和孔隙率指标；三轴湿化试验中干态剪切阶段的外部体积变形可由围压水的相对变化换算得出，浸水过程中轴向变形和体积变形可由外体变与局部应变测量技术采集。", "ds_quality": "
通过开展堆石料的单向压缩试验和三轴压缩湿化试验，研究了初始状态对堆石料压缩特性以及湿化对后续加载强度变形特性的影响。\n
试验结果表明：堆石料母岩软化系数的差异是其干湿状态下压缩行为不同的主要原因；湿化后再加载的初始阶段，堆石料均会出现塑性硬化现象，与母岩岩性无关。单向压缩湿化试验中的硬化段斜率在数值上近似等于该湿化应力水平下的回弹模量，三轴压缩湿化试验中的硬化段斜率则等于饱和样在该围压下的卸载模量。", "ds_acq_start_time": "2024-07-05 00:00:00", "ds_acq_end_time": "2024-09-10 00:00:00", "ds_acq_place": "江苏省南京市", "ds_acq_lon_east": 110.2, "ds_acq_lat_south": 12.6, "ds_acq_lon_west": 87.3, "ds_acq_lat_north": 29.7, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 98534, "ds_files_count": 3, "ds_format": "*.xlsx", "ds_space_res": null, "ds_time_res": "", "ds_coordinate": "无", "ds_projection": "", "ds_thumbnail": "b3dec8c7-ea44-4d33-b24d-a1f26d1ffb64.png", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "", "ds_from_station": null, "organization_id": "973f338d-7fd4-4c6f-aab1-44a5c242d419", "ds_serv_man": "李红星", "ds_serv_phone": "0931-4967592", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "", "subject_codes": [ "410" ], "quality_level": 3, "publish_time": "2025-05-29 18:14:13", "last_updated": "2025-06-02 15:45:00", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.NCDC.NHRI_DAM.DB6858.2025", "i18n": { "en": { "title": "Dataset of oedometric test and triaxial wetting test of rockfill materials", "ds_format": "*.xlsx", "ds_source": "
This data is based on the experimental results of the large-scale consolidation instrument and large-scale degradation instrument developed by Nanjing Institute of Water Resources.", "ds_quality": "
By conducting unidirectional compression tests and triaxial compression humidification tests on rockfill materials, the influence of initial state on the compression characteristics of rockfill materials and the influence of humidification on subsequent loading strength and deformation characteristics were studied.\n
The experimental results indicate that the difference in softening coefficient of the parent rock of the rockfill material is the main reason for its different compression behavior under dry and wet conditions; In the initial stage of reloading after humidification, plastic hardening phenomenon will occur in the rockfill material, regardless of the lithology of the parent rock. The slope of the hardened section in the unidirectional compression humidification test is approximately equal to the rebound modulus at that humidification stress level, while the slope of the hardened section in the triaxial compression humidification test is equal to the unloading modulus of the saturated sample at that confining pressure.", "ds_ref_way": "", "ds_abstract": "
This dataset consists of uniaxial compression test data of rockfill materials under different rock types, initial porosity, and loading rates, as well as triaxial humidification test data under different confining pressures and humidification stress levels.\nIn this dataset, there are two files: \"TEST 1. txt\" and \"TEST 2. txt\". \"TEST 1. txt\" includes the relationship between vertical stress and porosity of weakly weathered granite and strongly weathered sandstone under different initial porosity and loading rates; The \"TEST 2.txt\" includes the relationship between axial strain, axial stress, and volumetric strain of weakly weathered granite aggregates under different confining pressures and stress levels.
", "ds_time_res": "", "ds_acq_place": "Nanjing City, Jiangsu Province", "ds_space_res": "", "ds_projection": "", "ds_process_way": "Collect load and displacement data through the measurement system of a large-scale consolidation instrument, and further convert it into vertical stress and porosity indicators; The external volume deformation during the dry shear stage in the triaxial humidification test can be converted from the relative change in confining pressure water, and the axial deformation and volume deformation during immersion can be collected using external deformation and local strain measurement techniques.", "ds_ref_instruction": "" } }, "submit_center_id": "ncdc", "data_level": 0, "license_type": "CC BY 4.0", "ds_topic_tags": [ "堆石料", "单向压缩试验", "三轴湿化试验" ], "ds_subject_tags": [ "工程与技术科学基础学科" ], "ds_class_tags": [], "ds_locus_tags": [ "江苏省南京市" ], "ds_time_tags": [ 2024 ], "ds_contributors": [ { "true_name": "张志韬", "email": "ztzhang@nhri.cn", "work_for": "南京水利科学研究院", "country": "中国" }, { "true_name": "吉恩跃", "email": "eyji@nhri.cn", "work_for": "南京水利科学研究院", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "张志韬", "email": "ztzhang@nhri.cn", "work_for": "南京水利科学研究院", "country": "中国" } ], "ds_managers": [ { "true_name": "傅中志", "email": "zzfu@nhri.cn", "work_for": "南京水利科学研究院", "country": "中国" } ], "category": "其他" }