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送电线路穿越粉煤灰回填区及鱼溏区,地下水位埋深浅,基础埋深大,开挖困难。通过采用水泥粉喷桩支护帷幕技术提高线路基础的承载能力,经过在110KV送电线路杆塔基础施工中应用,取得明显效果,起到了对基坑支护作用,降低了出水量,提高了线路基础的承载能力,保证了送电线路基础施工质量,减少了送电线路基础的施工后沉降量,降低了施工难度,保证了新建公路路基和施工安全,缩短工期,节省投资。
Transmission lines through the fly-ash backfill area and Yantai area, groundwater depth buried shallow foundation deep, difficult to excavation. Through the use of cement powder spray pile support curtain technology to improve the carrying capacity of the line basis, after 110KV transmission line tower foundation construction application, achieved significant results, played a role in supporting the foundation pit, reducing the amount of water and improve the line The basic bearing capacity ensures the construction quality of the transmission line foundation, reduces the post-construction settlement of the transmission line foundation, reduces the construction difficulty, ensures the safety of new roadbed and construction, shortens the construction period and saves investment.