糯扎渡水电站右岸中线EL．656公路桩板墙施工技术控制

Construction Technology Control for EL.656 Highway Sheet Pile Wall on the Middle Line at the Right Bank of Nuozhadu Hydropower Station

糯扎渡水电站右岸中线EL．656公路，因右岸上、中、下三道公路均在施工，中线公路的开挖会对底线公路的施工和上线公路造成影响，因此在保留一条5m左右宽的毛路的情况下，通过设置板桩墙并回填土方以增加路宽，达到通车的目的。而抗滑桩、预应力锚索的施工又对整个项目起到至关重要的作用，所以必须控制好抗滑桩、预应力锚索的施工技术规范。

The Highway EL. 656 in the middle line at the right bank of Nuozhadu Hydropower Station are under construction for the upper, middle and lower highways at the right bank, the excavation of the middle highway may cause influence to the bottom line highway and upper line highway; therefore, under the condition of reserving a road of about 5m wide, the sheet pile walls are set and earthwork is filled to increase road width, to realize the purpose of opening traffic. While, anti pile-slippage, and prestressing anchor rope construction plays a crucial role in the whole project, so it is required to control the construction technology specification for anti-slippage pile and pre-stressed anchor rope.