Abstract: This paper introduces the theory and method of diversion which has been used to strain gauge to stress numerical value in the Three Gorges Project monitoring, and the example of the location of dam in the No. 8 nonovertlow dam monolith, adopts distortion method and fittings the parameter of elastic modulus in complex index formula, and the effect is preferable, the degree of precision of deformation numerical value is more preferable.

摘要： 本文介绍了三峡水利枢纽监测中所埋设的应变计数值向应力数值转换的原理和方法，以三峡工程左岸非溢流坝8号坝段坝址部位埋设的应变计为例，采用变形法，并运用复合指数式对弹性模量的参数进行了拟合，拟合结果较好，因此计算出的应力数值精确度较高。