计算值与监测值对比是衡量重构应力场是否准确的重要指标，本数据集为小湾拱坝重点部位（如坝踵）应力的重构计算值与实际监测值的过程线对比。包含竖向应力的监测值和计算值。\n
数据集包含一个xlsx文件，按照测点分01和02两个部分，以01为例，第一列为日期，第二列为计算值（Mpa），第二列为监测值（Mpa），第三列为偏移后的计算值（Mpa），第四列为计算值与监测值的误差（%）。", "ds_source": "
重构计算值主要通过构建精细化有限元仿真模型、准确反演边界条件和材料参数荷载、仿真计算得到，实际监测值主要根据压应力计监测值，由华能澜沧江水电股份有限公司提供，以相同日期起点及应力状态，取对应时点进行过程线对比。", "ds_process_way": "
（1）重构计算值主要采用有限元软件SAPTIS，算法来源为有限元基本理论、朱伯芳院士相关著作、软件说明书等。\n
（2）实际监测值主要来源于坝踵部位埋设的压应力计，压应力计可以直接读取压应力值。\n
（3）以2017年正常蓄水位时节点为基准，将得到的应力计算值和监测值插值成相同时步的时间序列。\n
（4）绘制对比过程线，直观体现误差对比情况。", "ds_quality": "
该数据可为准确把握小湾大坝工作性态提供可靠数据支持。仿真计算值经反馈验证，应力云图分布规律符合常识，与实际测值相符，模型校核准确；所获取的监测数据均为原始监测数据，经粗差识别并剔除异常值，再进行应力计算；绘制过程线对比前，先选取相同的时间状态基准，最终用于误差对比。误差小于10%", "ds_acq_start_time": "2017-10-15 00:00:00", "ds_acq_end_time": "2023-10-15 00:00:00", "ds_acq_place": "小湾拱坝", "ds_acq_lon_east": 100.13, "ds_acq_lat_south": 24.6, "ds_acq_lon_west": 100.08999999999999, "ds_acq_lat_north": 24.7, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 35480, "ds_files_count": 2, "ds_format": "*.xlsx", "ds_space_res": null, "ds_time_res": "", "ds_coordinate": "无", "ds_projection": "", "ds_thumbnail": "8236cd76-671e-4a4a-9837-9551dc108dd6.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": 0, "publish_time": "2025-05-29 18:14:07", "last_updated": "2025-05-29 18:14:07", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.NCDC.NHRI_DAM.DB6855.2025", "i18n": { "en": { "title": "Comparison data set of calculated and monitored vertical stress of dam heel in Xiaowan Arch dam after 2017", "ds_format": "*.xlsx", "ds_source": "
The reconstruction calculation values are mainly obtained through the construction of a refined finite element simulation model, accurate inversion of boundary conditions and material parameter loads, and simulation calculations. The actual monitoring values are mainly based on the monitoring values of the stress gauge, provided by Huaneng Lancang River Hydropower Co., Ltd., and compared with the corresponding process lines at the same starting point and stress state on the same date.", "ds_quality": "
This data can provide reliable data support for accurately grasping the working behavior of Xiaowan Dam. The simulated calculation values have been verified through feedback, and the distribution pattern of stress cloud maps conforms to common sense, matches the actual measured values, and the model verification is accurate; The monitoring data obtained are all original monitoring data, which have been subjected to gross error identification and outlier removal before stress calculation; Before drawing process lines for comparison, select the same time state benchmark and use it for error comparison. Error less than 10%", "ds_ref_way": "", "ds_abstract": "
The comparison between calculated values and monitoring values is an important indicator for measuring the accuracy of the reconstructed stress field. This dataset is a process line comparison between the reconstructed calculated values and the actual monitoring values of the stress in key areas of Xiaowan Arch Dam, such as the dam heel. Contains monitoring and calculation values of vertical stress.\n
The dataset contains an xlsx file, divided into two parts according to measurement points, 01 and 02. Taking 01 as an example, the first column is the date, the second column is the calculated value (Mpa), the second column is the monitoring value (Mpa), the third column is the offset calculated value (Mpa), and the fourth column is the error (%) between the calculated value and the monitoring value.
", "ds_time_res": "", "ds_acq_place": "xiaowan arch dam", "ds_space_res": "", "ds_projection": "", "ds_process_way": "(1) The reconstruction calculation values are mainly carried out using the finite element software SAPTIS, and the algorithm sources are the basic theory of finite element, relevant works of Academician Zhu Bofang, software manuals, etc.\n
(2) The actual monitoring values mainly come from the stress gauges buried at the dam heel, which can directly read the stress values.\n
(3) Using the normal water level node in 2017 as a reference, interpolate the obtained stress calculation values and monitoring values into a time series with the same time step.\n
(4) Draw a comparison process line to visually reflect the comparison of errors.", "ds_ref_instruction": "" } }, "submit_center_id": "ncdc", "data_level": 0, "license_type": "CC BY 4.0", "ds_topic_tags": [ "坝踵应力", "有限元仿真", "监测" ], "ds_subject_tags": [ "工程与技术科学基础学科" ], "ds_class_tags": [], "ds_locus_tags": [ "中国", "小湾大坝" ], "ds_time_tags": [ 2017, 2018, 2019, 2020, 2021, 2022, 2023 ], "ds_contributors": [ { "true_name": "黄乃亮", "email": "1628630138@qq.com", "work_for": "中国水利水电科学研究院", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "黄乃亮", "email": "1628630138@qq.com", "work_for": "中国水利水电科学研究院", "country": "中国" } ], "ds_managers": [ { "true_name": "黄乃亮", "email": "1628630138@qq.com", "work_for": "中国水利水电科学研究院", "country": "中国" } ], "category": "其他" }