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引言埋藏式调压井衬砌的温度应力计算,涉及到计算理论,周围介质的温度,衬砌材料的热学性质以及施工等因素,是个复杂的问题。实践表明:埋藏式调压井只要施工中不出现裂缝,充水运行后,基本上不再产生裂缝,这是因为埋藏条件受温度,湿度变化影响较小的缘故。但在寒冷地区,露顶式调压井受温度变化影响就较大,衬砌一旦出现裂缝,将导致渗漏受冻,
INTRODUCTION Calculation of temperature stress in buried surge shaft linings involves a number of issues, such as computational theory, the temperature of the surrounding medium, the thermal properties of the lining material, and the construction. Practice shows that buried surge tanks will not crack any more as long as there is no cracks in the construction. After the water-filled operation, cracks will not be generated any more because the burial conditions are less affected by temperature and humidity changes. However, in the cold area, the exposed pressure surge well is greatly affected by the temperature change. Once the lining cracks, it will cause the leakage to be frozen,