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本文介绍一种考虑裂隙的压力隧洞钢筋混凝土衬砌的设计方法,这种方法考虑了衬砌与岩体中的渗透及与变形有关的衬砌渗透性,并以渗透压力洞的理论及关于钢筋混凝土中裂缝发展的较新知识为依据,尽可能实际地确定混凝土衬砌中裂缝的平均宽度与间距,钢筋中和岩体中的应力及压力隧洞的渗漏损失。计算中按隧洞是在地下水位以上或是以下分别处理。还考虑了裂缝发展的过程和它对环向钢筋应力的影响。随后介绍了钢筋混凝土压力隧洞的基本设计准则并举例说明。
In this paper, a design method of reinforced concrete tunnel with pressure tunnel considering fractures is introduced. This method considers the permeability of lining and rock mass and the deformation of lining, and uses the theory of seepage pressure tunnel and the analysis of cracks in reinforced concrete Based on the newer knowledge of development, as far as possible to determine the actual width of the concrete lining cracks and spacing, stress in the reinforced rock and pressure tunnel leakage loss. Calculated by the tunnel is above the groundwater level or below, respectively. The crack development process and its effect on the stress of hoop reinforcement are also taken into account. Then introduced the basic design criteria of reinforced concrete pressure tunnel and give an example.