screen wall

Distributing control point used of straight closed traverse and using of distance measurement polar coordinates and near distance high degree level measuring method to do deformation measuring for the plugging water curtain wall.

用直伸闭合导线布设控制点，以测距极坐标和近距高等级水准测量方法对堵水帷幕墙进行变形测量，有利于提高观测精度，能消除横向误差对监测点位精度的影响，精度及效果较

The construction method of high pressure spray grouting technology in seepage prevention curtain against municipal flood control dykes in cold region was presented.

阐述了高压喷射灌浆技术用于寒区城市防洪大堤的防渗帷幕墙灌浆工程的施工技术和施工方法。