Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for calculating bearing capacity of cast-in-situ bored pile
The invention discloses a method for calculating the bearing capacity of a cast-in-situ bored pile, and relates to the technical field of buildings. Comprising the steps of obtaining soil samples at different depths of an engineering site; determining the slurry seepage pressure of the indoor test; preparing pile-soil transition zone samples at different depths; the pile-soil transition zone sample is maintained according to site construction conditions; the widths of the pile-soil transition zones at different depths are obtained through image processing software; drawing the change relation of the width of the pile-soil transition zone along with the increase of the depth of the field soil, and fitting to obtain a function relation; obtaining the equivalent diameter of the cast-in-place pile considering the width of the pile-soil transition zone based on the function relationship; and a cast-in-place pile vertical bearing capacity calculation formula considering the width of the pile-soil transition zone is obtained. According to the method, the process that the concrete slurry infiltrates into the soil in the actual construction process of the cast-in-situ bored pile is fully considered, the vertical bearing capacity of the cast-in-situ bored pile can be calculated more accurately, and the problem that the calculated vertical bearing capacity is small due to the fact that a pile-soil transition zone is not considered in a traditional calculation method is effectively solved.
本发明公开了一种钻孔灌注桩承载力计算方法，涉及建筑技术领域；包括获取工程场地不同深度处的土样；确定室内试验的浆液渗透压力；制备不同深度处的桩土过渡带试样；根据现场施工条件对桩土过渡带试样进行养护；通过图像处理软件得到不同深度处的桩土过渡带宽度；绘制桩土过渡带宽度随着场地土深度增加的变化关系并进行拟合得到函数关系；基于该函数关系得到考虑桩土过渡带宽度的灌注桩等效直径；获得考虑桩土过渡带宽度的灌注桩竖向承载力计算公式。该方法充分考虑了钻孔灌注桩实际施工过程中混凝浆液入渗土壤的过程，能更加精准的计算钻孔灌注桩的竖向承载力，有效避免了传统计算方法未考虑桩土过渡带造成计算获得的竖向承载力偏小的问题。
Method for calculating bearing capacity of cast-in-situ bored pile
The invention discloses a method for calculating the bearing capacity of a cast-in-situ bored pile, and relates to the technical field of buildings. Comprising the steps of obtaining soil samples at different depths of an engineering site; determining the slurry seepage pressure of the indoor test; preparing pile-soil transition zone samples at different depths; the pile-soil transition zone sample is maintained according to site construction conditions; the widths of the pile-soil transition zones at different depths are obtained through image processing software; drawing the change relation of the width of the pile-soil transition zone along with the increase of the depth of the field soil, and fitting to obtain a function relation; obtaining the equivalent diameter of the cast-in-place pile considering the width of the pile-soil transition zone based on the function relationship; and a cast-in-place pile vertical bearing capacity calculation formula considering the width of the pile-soil transition zone is obtained. According to the method, the process that the concrete slurry infiltrates into the soil in the actual construction process of the cast-in-situ bored pile is fully considered, the vertical bearing capacity of the cast-in-situ bored pile can be calculated more accurately, and the problem that the calculated vertical bearing capacity is small due to the fact that a pile-soil transition zone is not considered in a traditional calculation method is effectively solved.
本发明公开了一种钻孔灌注桩承载力计算方法，涉及建筑技术领域；包括获取工程场地不同深度处的土样；确定室内试验的浆液渗透压力；制备不同深度处的桩土过渡带试样；根据现场施工条件对桩土过渡带试样进行养护；通过图像处理软件得到不同深度处的桩土过渡带宽度；绘制桩土过渡带宽度随着场地土深度增加的变化关系并进行拟合得到函数关系；基于该函数关系得到考虑桩土过渡带宽度的灌注桩等效直径；获得考虑桩土过渡带宽度的灌注桩竖向承载力计算公式。该方法充分考虑了钻孔灌注桩实际施工过程中混凝浆液入渗土壤的过程，能更加精准的计算钻孔灌注桩的竖向承载力，有效避免了传统计算方法未考虑桩土过渡带造成计算获得的竖向承载力偏小的问题。
Method for calculating bearing capacity of cast-in-situ bored pile
一种钻孔灌注桩承载力计算方法
CHEN XIAOCHUAN (Autor:in) / GUO YANG (Autor:in) / YUE TENGSHENG (Autor:in) / XI BANGLU (Autor:in) / ZHANG JUN (Autor:in) / KE ZHAIBANG (Autor:in)
02.12.2022
Patent
Elektronische Ressource
Chinesisch
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