作　　者： (李祖勇）; (王磊）; (屈永龙）;

机构地区： 西安科技大学建筑与土木工程学院,西安710054

出　　处： 《煤炭技术》 2017年第9期40-42,共3页

摘　　要： 体积比热与岩石含水率密切相关,但相关领域涉及较少,且含水率对体积比热影响没有形成系统的研究。对取自工程现场的2种粒径白垩系砂岩进行室内试验,测试含水率对体积比热的影响及变化机理。研究结果表明:常温下2种粒径白垩系砂岩的体积比热均随着含水率的不同而呈现不同的现象,随着含水率的增大其体积比热缓慢减小。分析了常温条件下岩石含水率与体积比热的关系,为在白垩系地层使用冻结法施工提供了有价值的参考经验。 Volume specific heat is closely related to rock moisture content, hut the related areas involved less, and the moisture content of the specific heat impact on the volume did not form a systematic study. The two kinds of Cretaceous sandstones from the engineering site were tested in the laboratory to test the influence of water content on the specific heat of volume and the mechanism of change. Research indicates ： the volume specific heat of the two types of Cretaceous sandstones at room temperature showed different phenomena with the water content, and the volume ratio of the Cretaceous sandstones decreased with the increase of the water content. The relationship between rock moisture content and specific heat volume at room temperature is analyzed, which provides valuable reference experience for the use of freezing method in Cretaceous strata.

关 键 词： 体积比热 岩石含水率 白垩系岩石 热参数分析仪