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Mass concrete body temperature control anti-cracking method
According to the mass concrete body temperature control anti-cracking method, in the concrete pouring process, concrete is subjected to layered pouring, and the temperature between the center and the surface of the concrete is controlled by controlling the mold entering temperature, the time-varying maximum temperature, the surface temperature and the layering temperature of the concrete; the difference value between the new concrete and the old concrete and the difference value between the concrete surface temperature and the air temperature enable the layering temperature of the concrete to be within the gradient range, and the method comprises the steps that the mold entering temperature of the concrete is controlled in a site entering inspection mode; the method comprises the following steps: detecting the time-varying maximum temperature of a concrete central axis position; calculating the time-varying maximum temperature verification theory to obtain the water-cooling rate control temperature of the concrete construction site; monitoring points are arranged in concrete to monitor the layering temperature and the surface temperature of the concrete, and the layering temperature and the surface temperature are used for detecting the surface stress and the layering stress of the concrete.
本发明提供了一种大体积混凝土体温控抗裂方法，在混凝土的浇筑过程中，使混凝土进行分层浇筑，通过控制混凝土的入模温度、时变最大温度、表面温度和分层温度，以控制混凝土中心和表面之间，新混凝土和老混凝土之间以及混凝土表面温度和气温之间的差值，以使混凝土分层温度在梯度范围内，包括：通过进场检验的方式控制混凝土的入模温度；通过检测混凝土中心轴位置的时变最大温度；通过对时变最大温度校验理论计算，获得混凝土施工现场水冷速率控制温度；通过在混凝土内设置监测点，监测混凝土的分层温度和表面温度，分层温度和表面温度用于检测混凝土表面和分层应力。
Mass concrete body temperature control anti-cracking method
According to the mass concrete body temperature control anti-cracking method, in the concrete pouring process, concrete is subjected to layered pouring, and the temperature between the center and the surface of the concrete is controlled by controlling the mold entering temperature, the time-varying maximum temperature, the surface temperature and the layering temperature of the concrete; the difference value between the new concrete and the old concrete and the difference value between the concrete surface temperature and the air temperature enable the layering temperature of the concrete to be within the gradient range, and the method comprises the steps that the mold entering temperature of the concrete is controlled in a site entering inspection mode; the method comprises the following steps: detecting the time-varying maximum temperature of a concrete central axis position; calculating the time-varying maximum temperature verification theory to obtain the water-cooling rate control temperature of the concrete construction site; monitoring points are arranged in concrete to monitor the layering temperature and the surface temperature of the concrete, and the layering temperature and the surface temperature are used for detecting the surface stress and the layering stress of the concrete.
本发明提供了一种大体积混凝土体温控抗裂方法，在混凝土的浇筑过程中，使混凝土进行分层浇筑，通过控制混凝土的入模温度、时变最大温度、表面温度和分层温度，以控制混凝土中心和表面之间，新混凝土和老混凝土之间以及混凝土表面温度和气温之间的差值，以使混凝土分层温度在梯度范围内，包括：通过进场检验的方式控制混凝土的入模温度；通过检测混凝土中心轴位置的时变最大温度；通过对时变最大温度校验理论计算，获得混凝土施工现场水冷速率控制温度；通过在混凝土内设置监测点，监测混凝土的分层温度和表面温度，分层温度和表面温度用于检测混凝土表面和分层应力。
Mass concrete body temperature control anti-cracking method
一种大体积混凝土体温控抗裂方法
MAN CHAOQUN (author) / SU LI (author) / LU WEIJUN (author) / WANG JUNQIANG (author) / SHANG YAXIN (author)
2023-10-31
Patent
Electronic Resource
Chinese
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