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国内外平板载荷试验标准方法对比研究
Comparative Study of Chinese and Foreign Codes for Plate Loading Test
平板载荷试验作为常用的原位测试方法,其技术要求和成果应用在不同国家标准体系下存在差异。为服务国际工程实践领域的标准应用,从标准体系、试验方法及资料整理3个方面,对现行国内外平板载荷试验标准的差别进行了对比分析。结果表明:在标准体系方面,国外标准多围绕特定领域集中提出强制性条文及技术要求,结构相对简明;在试验方法方面,国外标准以原则性和指导性要求为主,对结合实际条件开展试验提出了更高要求;在资料整理方面,国内标准通常基于荷载-沉降曲线直接确定容许承载力,而国外标准则在特定条件下通过反演强度参数并结合极限承载力理论计算获得容许承载力。研究方法可为采用国外标准条件下开展平板载荷试验及成果分析提供参考。
With the increasing internationalization of geotechnical engineering projects in China and the growth of international engineering cooperation, the demand for referencing and applying foreign technical standards in engineering practice is growing. As a widely used in-situ testing method, the technical requirements and application of plate load test (PLT) results vary across different standard systems. To facilitate international engineering practice and standard alignment, this paper provides a comparative analysis of the similarities and differences between current domestic and foreign PLT standards from three aspects: standard systems, testing methods, and data interpretation. The analysis reveals the following:(1) In terms of standard systems, foreign standards typically focus on specific fields by proposing mandatory provisions and technical requirements, featuring a relatively concise structure. (2) Regarding testing methods, foreign standards are primarily principle-based and guidance-oriented, imposing higher requirements on engineers to conduct tests based on actual field conditions. (3) In data interpretation, domestic standards usually determine the allowable bearing capacity directly from the load-settlement curve. In contrast, foreign standards derive the allowable bearing capacity by back-calculating strength parameters under specific conditions and applying ultimate bearing capacity theories. This study provides a valuable reference for conducting PLTs and analyzing results under foreign standard frameworks.
平板载荷试验 / 中外标准 / 对比研究 / 标准体系 / 试验方法
plate loading test / Chinese and foreign codes / comparative study / standard system / test method
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