Static load test method for spin digging pile: Fid-Bau Portal

Static load test method for spin digging pile

CHEN WEILIE / CHEN ZHONGMA / SONG LIBO

The invention relates to a static load test method for a spin digging pile, which belongs to the technical field of pile foundation detection. The static load test method comprises establishing a ballasting platform as follows: a, clearing a site near a foundation pile; b, mounting an aligning mechanism on the foundation pile, wherein the aligning mechanism comprises a fixed frame fixedly mountedon the outer wall of the foundation pile, and at least two positioning rods are arranged on the fixed frame; c, fixing an oil-pressure lifting jack on a pressure bearing plate, forming insertion holeswhich are in splicing fit to the positioning rods in the pressure bearing plate, hoisting the pressure bearing plate on the pile top of the foundation pile, and separately inserting the positioning rods into corresponding insertion holes; d, symmetrically arranging buttresses at the two sides of the foundation pile according to a site condition; e, sequentially hoisting a primary beam and a secondary beam onto the oil-pressure lifting jack, lapping the two ends of the primary beam onto the buttresses to accomplish primary ballasting platform establishing, uniformly and stably placing counterweight onto the platform. The static load test method can align the center of the pressure bearing plate to the center of the cross section of the foundation pile more precisely in operation.

本申请涉及一种旋挖桩的静载检测方法，属于桩基检测技术领域，包括步骤压重平台搭建包括：a：对基桩附近场地进行清理；b：在基桩上安装对准机构，对准机构包括固定安装在基桩外壁上的固定架，在固定架上至少设有两根定位杆；c：将油压千斤顶固定在承压板上，在承压板上开设有与定位杆插接配合的插孔，将承压板吊装于基桩桩顶，且定位杆分别插入至相对应的插孔中；d：根据场地条件，在基桩的两侧对称设置支墩；e：将主梁与次梁依次吊装于油压千斤顶上，主梁的两端搭设于支墩上，完成初步的压重平台搭建，再将配重均匀稳固地放置于平台上。其可以在操作中更加精准地将承压板中心与基桩横截面中心对准。

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