Construction technology for digging round hole in square pile of slide-resistant pile: Fid-Bau Portal

Construction technology for digging round hole in square pile of slide-resistant pile

LI YANHAN / LI PIAO / ZHOU FUCHUAN / ZHANG HONGJUN

The invention discloses a construction process for digging a round hole in a square pile of an anti-slide pile. The construction method comprises the following steps: (1) firstly, manually digging a rectangular construction platform with the depth of 2-4m on the ground according to the size of the designed square pile; (2) at the bottom of the square foundation pit, according to the designed round pile size, a mechanical hole forming mode is adopted, a round pile outline (a round vertical shaft) is dug, and then manual trimming is conducted to form a rectangular hole; (3) the reinforcement cage is placed in the circular vertical shaft, and concrete is poured; and (4) the square pile above the ground is supported through a wood formwork, and one-time concrete pouring is completed. The slide-resistant piles penetrate through a landslide body or backfill soil and go deep into pile columns of a slide bed, are used for supporting and blocking the sliding force of the slide body, can effectively enhance the slope stability, and are suitable for shallow-layer and medium-thick-layer landslides of an upper soil body and a lower rock layer binary stratum structure and earth and rock fill bodies such as embankments and earth and rockfill dams.

本发明公开了一种抗滑桩方桩挖圆孔施工工艺，施工方法包括：（1）先在地面处按设计方桩尺寸采用人工开挖深度2～4ｍ的矩形施工平台；（2）在方形基坑底部，按设计圆桩尺寸，采用机械成孔方式，开凿圆形桩轮廓（圆形竖井），再人工修边成矩形孔；（3）将钢筋笼置入圆形竖井中，并浇筑混凝土；（4）地面以上方桩采用木模板支模，一次浇筑混凝土完成。所述抗滑桩是穿过滑坡体或回填土并深入滑床的桩柱，用以支挡滑体的滑动力，能有效增强边坡稳定性，适用于上部土体、下部岩层二元地层结构的浅层和中厚层滑坡和路堤、土石坝等土石堆填体。

Zugriff

Download

Seitennavigation

Dokumentinformationen

Ähnliche Titel

Exportieren, teilen und zitieren