Foundation pit cross anchor supporting system and construction method thereof: Fid-Bau Portal

Foundation pit cross anchor supporting system and construction method thereof

HE XIAOFEI / LI HONGJUN / ZHANG YANNING / HU JUAN / SONG YOUXU / LUO JINYU

The invention relates to a foundation pit cross anchor supporting system. The foundation pit cross anchor supporting system comprises a plurality of supporting piles arranged in a two-row mode and arranged in adjacent areas of adjacent foundation pits and further comprises installation grooves formed between the adjacent supporting piles and penetrating through the adjacent areas of the adjacent foundation pits, positioning frames are arranged in the installation grooves, cross anchors are horizontally arranged on the positioning frames, and two ends of the cross anchors separately extend to the supporting piles and connected with waist rails. The installation grooves are formed in the adjacent areas of the foundation pits to replace an existing construction method of forming holes by a jumbolter, the horizontal arrangement of the cross anchors is ensured, and foundation pit cross anchor supporting system has the advantages of short construction period, low construction cost and good supporting effect.

本发明涉及一种基坑对拉锚杆支护体系，包括多根设置在相邻基坑相邻区域内的两排支护桩，还包括开设在相邻支护桩之间且贯穿相邻基坑相邻区域的安装槽，所述安装槽内设有定位架，所述定位架上水平设有对拉锚索，所述对拉锚索的两端分别延伸至支护桩处并连接有腰梁。通过在基坑相邻区域内开设安装槽代替现有的锚杆钻机成孔的施工方式，保证对拉锚索水平设置，具有施工周期短、施工成本低以及支护效果好的优点。

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