摘   要：混凝土早期变形及约束引起的地下室侧墙混凝土开裂现象是工程中的常见问题。通过预埋温度与应变传感器的方法，对实际工程中侧墙混凝土早龄期的温度与应变的变化规律进行了监测。研究结果表明，地下室侧墙混凝土浇筑后，温度的变化都有一潜伏期，此后温度急剧上升直至达到最大温升，之后开始降温并趋于外界温度。同时研究也表明，混凝土内部温度是影响应变发生的主要原因，且混凝土内部早期应变明显，当温度趋于外界温度后，侧墙混凝土的应变并不发生太大变化。

Abstract: Early deformation and constraint of concrete causing the basement side wall concrete cracking phenomenon are common problems in engineering. Through the methods of embedded temperature and strain sensor, the temperature with side wall concrete early ages and strain change rules in actual engineering are monitored. The results indicate that after the basement side wall concrete casting, the change of the temperature has an incubation period, then the temperature sharply rises until reaching the maximum, after that, the temperature begins to be cooling and tends to be the outside temperature. Meanwhile, the research also shows that the internal temperature of concrete is the main reason for strain happening, and the early strain of concrete is obvious. When the temperature of side wall concrete tends to be outside temperature, the strain doesn’t occur too much change.