【摘要】 本文介绍了方向线偏移法的测量基坑水平位移基本原理。在文中提出了一种利用精密测距测量工作基点位移的方法,并且针对某特殊形状的基坑,提出一种结合方向线偏移法和精密测距的联合改进方法。最后分析了该方法的精度,并用实际数据说明了该方法的可行性和优势。更多还原

【Abstract】 Based on the precise distance measurement,this paper introduces the principle of the deflection of direction method and a new way to survey the operating control point.The improved new method which combines the deflection of direction with the precise distance measurement is to monitor a special shaped foundation pit.Besides,the precision of the combined method is analyzed and some actual data used to illustrate the advantage and feasibility of the proposed method.更多还原