钢纤维喷射混凝土 meaning in English
steel fibrous shotcrete
Examples
- Steel fibrous shotcrete
钢纤维喷射混凝土 - The study lies in following aspects : 1 ) a great number of experiments on sfrc are carried out to obtain the basic data of sfrc energy properties , which are the fundamental parts of further study . 2 ) a probability analysis based on statistical theory is done to all the experiment data . in the end , energy criterion for sfrc associated with security criterion are calculated and listed for future use
本文主要针对钢纤维喷射混凝土在单层隧道衬砌中的应用进行了研究，内容包括以下几个方面： 1 )进行了大量的钢纤维混凝土标准试件试验，试验的成果和数据为研究钢纤维混凝土的能量特征提供了事实依据和参考； 2 )运用概率统计方法对钢纤维混凝土的指标进行了可靠性分析，得出了实际可以接受的保证率下的钢纤维混凝土能量指标； 3 )通过合理的假设和简化，研究了钢纤维混凝土构件在破坏过程中的能量耗散机理。 - The change of energy in wall rock is tracked in the whole process and the amount of energy transferred to linings is also evaluated . 5 ) based on the principal of energy invariance and the energy properties of sfrc , a practical design equation that related the thickness of projecting sfrc to the energy related properties of tunnel is given in the end . this equation is then used to design a single - track railway tunnel in iii grade rock condition
并进一步推导了不同形式的构件间的能量耗散关系，为将标准试验的能量统计结果运用于实际结构中打下了基础； 4 )利用有限元软件对隧道开挖过程进行了三维模拟，得到了隧道围岩在开挖掘进过程中的能量转化趋势和规律，得到了钢纤维喷射混凝土衬砌在支护过程中的能量变化； 5 )利用能量守恒原理和已经推导出的构件能量耗散关系，建立了钢纤维喷射混凝土衬砌厚度与围岩开挖能量变化间的关系，并运用此方法对级围岩条件中的铁路单线隧道的钢纤维喷射混凝土衬砌进行了设计计算；