Design and construction of punch bored pile foundation in thick granular strongly weathered granite
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    Abstract:

    The selection of wharf punch bored pile foundation types is studied in condition of thick granular strongly weathered granite with thin covering layer.By the calculation of project example,the batter punch bored pile plan and vertical punch bored pile plan are compared.Comparing with the vertical punch bored pile,the batter punch bored pile plan is characterized by high horizontal bearing capacity,low bending moment and low engineering cost.According to the offset-axes and hole-collapse in the construction process of the batter punch bored pile,we summarize the prevention measures including adding the guide-hole,guide apparatus,pre-buried duct and driving the secondary steel casing,which can be used as reference for similar projects.

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秦 武,周晓春,俞长桂,顾祥奎.厚强风化地质条件下的嵌岩灌注桩桩基设计和施工[J].水运工程,2019,(5):194-198

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  • Online: May 15,2019
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