A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Saturated sand liquefaction detection method based on standard penetration test
The invention relates to a saturated sand liquefaction detection method based on a standard penetration test. The method comprises the following steps of: establishing a saturated sand liquefaction detection model related to saturated sand burial depth, underground water level depth, fine particle content, earthquake magnitude and earthquake peak acceleration, and obtaining a critical standard penetration number; and carrying out saturated sand liquefaction discrimination by utilizing the critical standard penetration number and a corrected actually measured standard penetration number. Compared with the prior art, the method has the advantages that the defects that a liquefaction discrimination formula in a building anti-seismic design specification (GB 50011-2010) is inclined to risk ina saturated sand shallow layer and is inclined to conservative in a saturated sand deep layer are overcome, so that a detection result is more accurate; liquefaction discrimination of soil bodies withvarious burial depths and fine particle contents can be met under various intensities, and the method has wide applicability; and the discrimination formula is simple in form, comprehensive in consideration and suitable for being used in actual engineering; and based on a foreign liquefaction database, the earthquake site is more, the data size is large, good representativeness is achieved, and popularization is easy.
本发明涉及一种基于标准贯入试验的饱和砂土液化检测方法，包括以下步骤：建立与饱和砂土埋深、地下水位深度、细粒含量、震级和地震峰值加速度有关的饱和砂土液化检测模型，得到临界标贯击数；利用临界标贯击数和修正的实测标贯击数进行饱和砂土液化判别。与现有技术相比，弥补了建筑抗震设计规范(GB 50011—2010)中液化判别公式在饱和砂土浅层偏于冒险、深层偏于保守的缺陷，使检测结果更加精确；在各种烈度下可满足多种埋深和细粒含量的土体液化判别，具有广泛的适用性；判别公式形式简单、考虑全面，适合实际工程中使用；基于国外液化数据库，地震场地较多且数据量大，具有较好的代表性，易于推广。
Saturated sand liquefaction detection method based on standard penetration test
The invention relates to a saturated sand liquefaction detection method based on a standard penetration test. The method comprises the following steps of: establishing a saturated sand liquefaction detection model related to saturated sand burial depth, underground water level depth, fine particle content, earthquake magnitude and earthquake peak acceleration, and obtaining a critical standard penetration number; and carrying out saturated sand liquefaction discrimination by utilizing the critical standard penetration number and a corrected actually measured standard penetration number. Compared with the prior art, the method has the advantages that the defects that a liquefaction discrimination formula in a building anti-seismic design specification (GB 50011-2010) is inclined to risk ina saturated sand shallow layer and is inclined to conservative in a saturated sand deep layer are overcome, so that a detection result is more accurate; liquefaction discrimination of soil bodies withvarious burial depths and fine particle contents can be met under various intensities, and the method has wide applicability; and the discrimination formula is simple in form, comprehensive in consideration and suitable for being used in actual engineering; and based on a foreign liquefaction database, the earthquake site is more, the data size is large, good representativeness is achieved, and popularization is easy.
本发明涉及一种基于标准贯入试验的饱和砂土液化检测方法，包括以下步骤：建立与饱和砂土埋深、地下水位深度、细粒含量、震级和地震峰值加速度有关的饱和砂土液化检测模型，得到临界标贯击数；利用临界标贯击数和修正的实测标贯击数进行饱和砂土液化判别。与现有技术相比，弥补了建筑抗震设计规范(GB 50011—2010)中液化判别公式在饱和砂土浅层偏于冒险、深层偏于保守的缺陷，使检测结果更加精确；在各种烈度下可满足多种埋深和细粒含量的土体液化判别，具有广泛的适用性；判别公式形式简单、考虑全面，适合实际工程中使用；基于国外液化数据库，地震场地较多且数据量大，具有较好的代表性，易于推广。
Saturated sand liquefaction detection method based on standard penetration test
一种基于标准贯入试验的饱和砂土液化检测方法
ZHOU JIANKUN (author) / WANG TIANPENG (author) / ZHAO JIANG (author) / ZHANG JIE (author) / HUANG JUN (author) / XIAO SHIHAO (author) / ZHANG JIANMEI (author)
2020-09-25
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
Probabilistic Standard Penetration Test-Based Liquefaction-Triggering Procedure
| British Library Online Contents | 2012
Probabilistic Standard Penetration Test–Based Liquefaction–Triggering Procedure
| Online Contents | 2012
Liquefaction Resistance of Saturated Sand
| Springer Verlag | 2022