2019年针对漠河冻土、东营冻土开展温变条件下冻土的声学响应实验，研究温变条件下（-25ºC~25 ºC）的冻土纵波速度变化规律。观测要素包括长度、密度、温度、声波速度等。数据资源采集时间范围为2019年9月20日-2019年10月20日，利用声波探测系统测量横、纵波在不同埋深和不同温度下的冻土地层的传播速度。用于建立冻土地层温度对纵波速度的影响规律模型。
", "ds_source": "实验试验，自主产生。
", "ds_process_way": "数据采集使用HKN-B型智能超声纵横波自动测试仪，技术参数：1.纵波、横波发射电压选择250V、500V、1000V三档可调，脉冲宽度可分五档调整3微秒、2微秒、1微秒、500纳秒、200纳秒。2.频率范围：50KHz-2MHz；3.衰减调节范围：1-80db，步级1db；4.时间读出精度0.0625µs；5.时间读出范围0µs-1ms；6. AD分辨率12bit；7.幅度显示数值±4.8V精度0.05V。
", "ds_quality": "数据质量良好。
", "ds_acq_start_time": "2019-09-20 00:00:00", "ds_acq_end_time": "2019-10-20 00:00:00", "ds_acq_place": "山东省青岛市", "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": "login-access", "ds_total_size": 35984, "ds_files_count": 3, "ds_format": "excel", "ds_space_res": null, "ds_time_res": "日", "ds_coordinate": "无", "ds_projection": "", "ds_thumbnail": "062c747f-1c26-4366-92a9-26fa0b2a362a.png", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "", "ds_from_station": null, "organization_id": "aaf309a1-cdf4-4049-be08-c06f80c4061f", "ds_serv_man": "敏玉芳", "ds_serv_phone": "0931-4967596", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "10.12072/ncdc.SRIPE.db1707.2022", "subject_codes": [ "170.50" ], "quality_level": 3, "publish_time": "2022-02-25 14:41:40", "last_updated": "2025-05-29 11:37:09", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.SRIPE.db1707.2022", "i18n": { "en": { "title": "Experimental data set of acoustic response of frozen soil under temperature variation of Mohe / Dongying frozen soil (September October 2019)", "ds_format": "Excel", "ds_source": "Experimental experiments, independently generated.
", "ds_quality": "The data quality is good.
", "ds_ref_way": "", "ds_abstract": "In 2019, acoustic response experiments were conducted on frozen soil under temperature change conditions in Mohe and Dongying, studying the longitudinal wave velocity variation of frozen soil under temperature change conditions (-25 º C~25 º C). Observation elements include length, density, temperature, sound wave velocity, etc. The data resource collection time range is from September 20, 2019 to October 20, 2019. The acoustic detection system is used to measure the propagation speed of transverse and longitudinal waves in frozen soil layers at different burial depths and temperatures. Used to establish a model of the influence of frozen soil layer temperature on longitudinal wave velocity.
", "ds_time_res": "日", "ds_acq_place": "Qingdao, Shandong Province", "ds_space_res": "", "ds_projection": "", "ds_process_way": "The data collection uses the HKN-B intelligent ultrasonic longitudinal and transverse wave automatic testing instrument, with technical parameters: 1. The longitudinal and transverse wave emission voltages can be adjusted in three levels: 250V, 500V, and 1000V, and the pulse width can be adjusted in five levels: 3 microseconds, 2 microseconds, 1 microsecond, 500 nanoseconds, and 200 nanoseconds. 2. Frequency range: 50KHz-2MHz; 3. Attenuation adjustment range: 1-80db, step size 1db; 4. Time readout accuracy 0.0625 µ s; 5. Time readout range 0 µ s-1ms; 6. AD resolution of 12 bits; 7. The amplitude display value is ± 4.8V with an accuracy of 0.05V
", "ds_ref_instruction": "" } }, "submit_center_id": "ncdc", "data_level": 0, "license_type": "CC BY 4.0", "doi_reg_from": "reg_local", "cstr_reg_from": "reg_local", "doi_not_reg_reason": null, "cstr_not_reg_reason": null, "is_paper_in_submitting": false, "ds_topic_tags": [ "冻土", "矿物分析", "低温力学试验", "真空隔热套管" ], "ds_subject_tags": [ "地质学" ], "ds_class_tags": [], "ds_locus_tags": [ "黑龙江漠河市", "山东省东营市", "青岛市" ], "ds_time_tags": [ 2019 ], "ds_contributors": [ { "true_name": "高德利", "email": "gaodeli@cup.edu.cn", "work_for": "中国石油大学（北京）", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "牛成成", "email": "niucc.sripe@sinopec.com", "work_for": "中国石油化工股份有限公司石油工程技术研究院", "country": "中国" } ], "ds_managers": [ { "true_name": "高德利", "email": "gaodeli@cup.edu.cn", "work_for": "中国石油大学（北京）", "country": "中国" } ], "category": "其他" }