{
    "created": "2025-12-25 10:36:25",
    "updated": "2026-09-24 10:09:02",
    "id": "1a8ffa9a-b5f9-4e58-8c31-b8362a536023",
    "version": 7,
    "ds_topic": null,
    "title_cn": "干湿循环下风积沙对硫酸盐渍土力学特性的影响及机制分析数据",
    "title_en": "The influence and mechanism analysis of wind blown sand on the mechanical properties of sulfate saline soil under wet dry cycle",
    "ds_abstract": "<p>&emsp;&emsp;硫酸盐渍土因含水率变化引发的盐胀问题是研究的热点和难点，提出采用风积沙改善其水稳定性。通过干湿循环方法制备单元体试样，结合三轴与微观试验，系统研究硫酸盐含量、干湿循环次数及风积沙掺量对试样物理力学性质的影响，为改善盐渍土的水稳定性提供了理论依据。",
    "ds_source": "<p>&emsp;&emsp;采用TFB-1型非饱和土应力应变控制式三轴仪开展三轴试验，试验方法参照《土工试验方法标准》（GB/T 50123—2019）。开展不固结不排水三轴剪切试验（UU），围压设置为50 kPa、100 kPa、200 kPa和400 kPa，当轴向应变达到20%时，结束试验。",
    "ds_process_way": "<p>&emsp;&emsp;选取(σ<sub>1</sub>-σ<sub>3</sub>)<sub>ult</sub>作为归一化因子，对应力应变曲线进行归一化，通过综合考虑硫酸盐含量、干湿循环次数、孔隙率、风积沙掺量及围压对试样强度的影响，所构建的修正Duncan-Chang模型能够有效验证不同试样在干湿循环下的应力-应变关系。",
    "ds_quality": "<p>&emsp;&emsp;本数据集参照《土工试验方法标准》（GB/T 50123—2019）严格操作，能够准确反映硫酸盐渍土的力学特性变化。",
    "ds_acq_start_time": "2024-10-20 00:00:00",
    "ds_acq_end_time": "2025-01-18 00:00:00",
    "ds_acq_place": "中国新疆",
    "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": 86836,
    "ds_files_count": 2,
    "ds_format": "*.xls",
    "ds_space_res": "",
    "ds_time_res": "",
    "ds_coordinate": "无",
    "ds_projection": "",
    "ds_thumbnail": "1a8ffa9a-b5f9-4e58-8c31-b8362a536023.jpg",
    "ds_thumb_from": 2,
    "ds_ref_way": "",
    "paper_ref_way": "",
    "ds_ref_instruction": "",
    "ds_from_station": null,
    "organization_id": "52b7b79b-860c-49a5-9083-9a70cf8bed5a",
    "ds_serv_man": "李红星",
    "ds_serv_phone": "0931-4967592",
    "ds_serv_mail": "ncdc@lzb.ac.cn",
    "doi_value": "",
    "subject_codes": [
        "170.5099",
        "410.30"
    ],
    "quality_level": 3,
    "publish_time": "2025-12-26 08:39:02",
    "last_updated": "2025-12-26 08:52:31",
    "protected": false,
    "protected_to": null,
    "lang": "zh",
    "cstr": "11738.11.NCDC.GEOMECHANICS.DB7046.2025",
    "i18n": {
        "en": {
            "title": "The influence and mechanism analysis of wind blown sand on the mechanical properties of sulfate saline soil under wet dry cycle",
            "ds_format": "",
            "ds_source": "<p>&emsp; &emsp; The TFB-1 unsaturated soil stress-strain controlled triaxial apparatus was used to conduct triaxial tests, and the test method referred to the \"Standard for Soil Test Methods\" (GB/T 50123-2019). Conduct unconsolidated undrained triaxial shear tests (UU) with confining pressures set at 50 kPa, 100 kPa, 200 kPa, and 400 kPa. The test is terminated when the axial strain reaches 20%.",
            "ds_quality": "<p>&emsp; &emsp; This dataset is strictly operated in accordance with the \"Standard for Soil Test Methods\" (GB/T 50123-2019) and can accurately reflect the changes in mechanical properties of sulfate soaked soil.",
            "ds_ref_way": "",
            "ds_abstract": "<p>    The problem of salt swelling caused by changes in moisture content in sulfate saline soil is a hot and difficult research topic, and it is proposed to use aeolian sand to improve its water stability. By using the dry wet cycle method to prepare unit cell samples, combined with triaxial and microscopic experiments, the effects of sulfate content, dry wet cycle times, and wind blown sand content on the physical and mechanical properties of the samples were systematically studied, providing a theoretical basis for improving the water stability of saline soil.</p>",
            "ds_serv_man": "Li Hongxing",
            "ds_time_res": "",
            "ds_acq_place": "Xinjiang, China",
            "ds_space_res": "",
            "ds_projection": "",
            "ds_share_type": "online",
            "ds_process_way": "<p>&emsp; &emsp; Selecting (σ 1- σ 3) ult as the normalization factor, the stress-strain curve is normalized. By comprehensively considering the effects of sulfate content, wet dry cycle times, porosity, wind blown sand content, and confining pressure on the strength of the specimens, the modified Duncan Chang model constructed can effectively verify the stress-strain relationship of different specimens under wet dry cycles.",
            "ds_ref_instruction": ""
        }
    },
    "submit_center_id": "ncdc",
    "data_level": 0,
    "recommendation_value": 0,
    "license_type": "https://creativecommons.org/licenses/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,
    "belong_to_nieer": false,
    "allow_update_data": false,
    "created_from": "fair",
    "ds_topic_tags": [
        "盐渍土"
    ],
    "ds_subject_tags": [
        "地质学其他学科",
        "工程地质学"
    ],
    "ds_class_tags": [],
    "ds_locus_tags": [
        "中国新疆石河子市"
    ],
    "ds_time_tags": [
        2024,
        2025
    ],
    "ds_contributors": [
        {
            "true_name": "段涛",
            "email": "20232110043@stu.shzu.edu.cn",
            "work_for": "石河子大学",
            "country": "中国"
        }
    ],
    "ds_meta_authors": [
        {
            "true_name": "段涛",
            "email": "20232110043@stu.shzu.edu.cn",
            "work_for": "石河子大学",
            "country": "中国"
        }
    ],
    "ds_managers": [
        {
            "true_name": "段涛",
            "email": "20232110043@stu.shzu.edu.cn",
            "work_for": "石河子大学",
            "country": "中国"
        }
    ],
    "category": "生态"
}