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用光测方法测定不同荷载条件下井群衬砌及围岩应力.结果表明:由于调压井内升管与闸门室共用.导致调压室井壁的刚度不同.不宜采用通常的圆筒壁计算方法.试验给出最大拉应力以及应力分布,调压井底板与板下的引水管衬砌相结合,共同作用在基础上,设计时应减弱调压井底板与基础不连接部分厚度,加强该部位引水道衬砌.最大应力发生在引水管矩型衬砌转角处.
Photometric Method for Determining Stress of Mine Lining and Surrounding Rock under Different Load Conditions. The results show that: due to the surge shaft and gate chamber shared. Resulting in different pressure chamber wall stiffness. Should not be used to calculate the usual cylindrical wall. The test gives the maximum tensile stress and stress distribution. The combination of the surge tank bottom plate and the water pipe lining under the slab works together on the basis of the design, the thickness of the surge tank bottom and the non-connected base should be weakened, and the diversion channel Lining. The maximum stress occurs at the corner of the liner lining.