Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for estimating ultimate uplift bearing capacity of single post-grouting cast-in-situ bored pile
The invention relates to the field of geotechnical engineering design, in particular to a method for estimating the ultimate uplift bearing capacity of a single post-grouting cast-in-situ bored pile. The method mainly comprises the steps that according to measured data, a quantitative post-grouting enhancement coefficient calculation formula is summarized and given; respectively calculating the grouting enhancement coefficient beta si of each soil layer in the grouting enhancement section range; and substituting into a standard formula to estimate the ultimate uplift bearing capacity of the post-grouting cast-in-place pile. According to the invention, the problem of inaccurate evaluation depending on experience in construction is solved.
本发明涉及岩土工程设计领域，具体地说是一种后注浆钻孔灌注桩单桩抗拔极限承载力的预估方法。主要方法为：根据实测数据，总结给出了定量的后注浆增强系数计算公式；分别计算出注浆增强段范围内的各土层的注浆增强系数βsi；代入规范公式，估算出后注浆灌注桩的单桩抗拔极限承载力。本发明解决了施工中依靠经验评估不准确的问题。
Method for estimating ultimate uplift bearing capacity of single post-grouting cast-in-situ bored pile
The invention relates to the field of geotechnical engineering design, in particular to a method for estimating the ultimate uplift bearing capacity of a single post-grouting cast-in-situ bored pile. The method mainly comprises the steps that according to measured data, a quantitative post-grouting enhancement coefficient calculation formula is summarized and given; respectively calculating the grouting enhancement coefficient beta si of each soil layer in the grouting enhancement section range; and substituting into a standard formula to estimate the ultimate uplift bearing capacity of the post-grouting cast-in-place pile. According to the invention, the problem of inaccurate evaluation depending on experience in construction is solved.
本发明涉及岩土工程设计领域，具体地说是一种后注浆钻孔灌注桩单桩抗拔极限承载力的预估方法。主要方法为：根据实测数据，总结给出了定量的后注浆增强系数计算公式；分别计算出注浆增强段范围内的各土层的注浆增强系数βsi；代入规范公式，估算出后注浆灌注桩的单桩抗拔极限承载力。本发明解决了施工中依靠经验评估不准确的问题。
Method for estimating ultimate uplift bearing capacity of single post-grouting cast-in-situ bored pile
一种后注浆钻孔灌注桩单桩抗拔极限承载力的预估方法
YANG JIBAO (Autor:in) / HAO SHILONG (Autor:in) / HUANG XING (Autor:in) / LI LEI (Autor:in) / LIU FUDONG (Autor:in) / NI HAO (Autor:in) / ZHAO JIAYI (Autor:in)
06.06.2023
Patent
Elektronische Ressource
Chinesisch
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