- 胡少偉,王 洋,孫岳陽,陸 俊
2020年第12期
摘要
引用本文
摘 ? 要:為了研究混凝土在水力劈裂過程中的斷裂能變化規律,分析了水力劈裂中的各荷載做功,建立了水壓力下斷裂能的計算公式,開展了12組混凝土水力劈裂試驗,得出了水壓力對混凝土斷裂能的影響規律。結果表明:水壓力作用下混凝土的斷裂能減小,水壓力越大,混凝土的斷裂能越??;混凝土在水力劈裂過程中的斷裂能弱化效應不可忽略,在0.3 MPa水壓力下,該弱化效應隨水壓力增加呈線性遞增趨勢。
Abstract: In order to study the influence of water pressure on fracture energy of concrete under hydraulic fracturing, the work done by each load in hydraulic fracturing test was analyzed, the calculation formula of fracture energy under water pressure was established, and 12 groups of hydraulic fracturing tests of concrete were carried out. The results show that the fracture energy of concrete decreases under the action of water pressure, and the greater the water pressure, the smaller the fracture energy of concrete, which shows that the weakening effect of the fracture energy in the process of concrete hydraulic fracturing cannot be ignored, the weakening effect increases linearly with the increase of water pressure which not exceed 0.3 MPa.
胡少偉,王洋,孫岳陽,等.不同水壓下混凝土斷裂能弱化效應試驗研究[J].混凝土與水泥制品,2020(12):6-10.
HU S W,WANG Y,SUN Y Y,et al.Experimental Study on Fracture Energy of Concrete Under Different Hydraulic Pressure[J].CHINA CONCRETE AND CEMENT PRODUCTS,2020(12):6-10.