高温作用后无机化学锚栓性能试验研究

Experimental study on the inorganic chemical anchor bolt property after high temperature effect

考虑温度、冷却方式及静置时间的影响,对高温作用后无机化学锚栓的性能进行了试验研究,结果表明,随温度的升高,抗拔承载力先降低,后回升,再大幅度降低,自然冷却的抗拔承载力高于浇水冷却,随静置时间的推移,抗拔承载力略为降低。

Considered temperature, cooling form and stewing time influences, the property of inorganic chemical anchor bolt was studied experimentally. The result indicated that the withdrawal resistance bearing capacity decreased first, then recovery, then decreased at wide range with temperature increasing, the withdrawal resistance bearing capacity of natural cooling was higher than watering cooling, the withdrawal resistance bearing capacity reduced litter with stewing time traction.