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Method and equipment for measuring deformation characteristic parameters of saturated soil foundation
The saturated soil foundation deformation characteristic parameter measuring method and equipment are suitable for measuring deformation characteristic parameters of a saturated soil foundation in hammering tubular pile construction, and the saturated soil foundation deformation characteristic parameter measuring method comprises the steps that on the basis of existing foundation survey data of various soil textures, the function relation between the foundation soil compression modulus and the foundation rigidity of the various soil textures is determined; measuring the settlement of the pile top during each hammering on the construction foundation; measuring the pile end soil pressure on the construction foundation during each hammering; according to the pile end soil pressure, the water pressure and the bottom area of the tubular pile during each hammering, the effective load applied to the soil body below the pile end during each hammering is calculated; calculating the foundation rigidity of the construction foundation according to the effective load applied to the soil body below the pile end by each hammering and the settlement of the pile top; and the soil compression modulus of the construction foundation is obtained according to the foundation rigidity of the construction foundation and the determined function relation between the foundation soil compression modulus of the corresponding soil texture and the foundation rigidity. The method is low in cost, high in operability and wide in application range.
本公开提供的饱和土地基变形特性参数测量方法及设备，适于锤击管桩施工中饱和土地基的变形特性参数测量，包括：基于已有的各类土质的地基勘测数据，确定各类土质的地基土压缩模量与地基刚度间的函数关系；在施工地基上测量每次锤击时的桩顶沉降量；在施工地基上测量每次锤击时的桩端土压力；根据每次锤击时的桩端土压力、水压力和管桩底部面积计算每次锤击对桩端下方土体所施加的有效荷载；根据每次锤击对桩端下方土体所施加的有效荷载和桩顶沉降量计算施工地基的地基刚度；根据施工地基的地基刚度以及确定的相应土质的地基土压缩模量与地基刚度间的函数关系得到施工地基的土压缩模量。本公开成本低廉、可操作性强且适用范围广。
Method and equipment for measuring deformation characteristic parameters of saturated soil foundation
The saturated soil foundation deformation characteristic parameter measuring method and equipment are suitable for measuring deformation characteristic parameters of a saturated soil foundation in hammering tubular pile construction, and the saturated soil foundation deformation characteristic parameter measuring method comprises the steps that on the basis of existing foundation survey data of various soil textures, the function relation between the foundation soil compression modulus and the foundation rigidity of the various soil textures is determined; measuring the settlement of the pile top during each hammering on the construction foundation; measuring the pile end soil pressure on the construction foundation during each hammering; according to the pile end soil pressure, the water pressure and the bottom area of the tubular pile during each hammering, the effective load applied to the soil body below the pile end during each hammering is calculated; calculating the foundation rigidity of the construction foundation according to the effective load applied to the soil body below the pile end by each hammering and the settlement of the pile top; and the soil compression modulus of the construction foundation is obtained according to the foundation rigidity of the construction foundation and the determined function relation between the foundation soil compression modulus of the corresponding soil texture and the foundation rigidity. The method is low in cost, high in operability and wide in application range.
本公开提供的饱和土地基变形特性参数测量方法及设备，适于锤击管桩施工中饱和土地基的变形特性参数测量，包括：基于已有的各类土质的地基勘测数据，确定各类土质的地基土压缩模量与地基刚度间的函数关系；在施工地基上测量每次锤击时的桩顶沉降量；在施工地基上测量每次锤击时的桩端土压力；根据每次锤击时的桩端土压力、水压力和管桩底部面积计算每次锤击对桩端下方土体所施加的有效荷载；根据每次锤击对桩端下方土体所施加的有效荷载和桩顶沉降量计算施工地基的地基刚度；根据施工地基的地基刚度以及确定的相应土质的地基土压缩模量与地基刚度间的函数关系得到施工地基的土压缩模量。本公开成本低廉、可操作性强且适用范围广。
Method and equipment for measuring deformation characteristic parameters of saturated soil foundation
饱和土地基变形特性参数测量方法及设备
DENG MINWEI (author) / CHEN TIANYI (author) / MOU TAIPING (author) / LUO FANGYUE (author) / LIANG DUOQIANG (author) / ZHANG GA (author) / ZHANG LIJIA (author) / ZHANG ZHIXIN (author)
2022-03-08
Patent
Electronic Resource
Chinese
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