CAJ | 학술논문

岩体变形模量是岩体工程设计最重要的参数之一。相比原位测试法，运用建立在原位测试、相关岩体地质特征和室内岩石力学试验基础上的经验关系方法来确定岩体变形模量则显得更为方便快捷，更适合于中小型工程实际应用。本文探讨了采用极易获取的钻孔岩芯RQD来估算岩体变形模量的可行性，以山东某核电基地为实例，在Zhang和Einsten估算公式的基础上，对RQD在0～60％区间内，提出了预测变形模量的估算公式，改善了Zhang和Einsten估算公式在此RQD区间样本数据较少的缺陷，结果表明两种公式具有较好的一致性；最后利用实测的岩体不同方向变形模量，探讨了不同方向变形模量比值与RQD的关系。
암체변형모량시암체공정설계최중요적삼수지일。상비원위측시법，운용건립재원위측시、상관암체지질특정화실내암석역학시험기출상적경험관계방법래학정암체변형모량칙현득경위방편쾌첩，경괄합우중소형공정실제응용。본문탐토료채용겁역획취적찬공암심RQD래고산암체변형모량적가행성，이산동모핵전기지위실례，재Zhang화Einsten고산공식적기출상，대RQD재0～60％구간내，제출료예측변형모량적고산공식，개선료Zhang화Einsten고산공식재차RQD구간양본수거교소적결함，결과표명량충공식구유교호적일치성；최후이용실측적암체불동방향변형모량，탐토료불동방향변형모량비치여RQD적관계。
The deformation modulus of rock masses is one of the most important parameters applying to the design of rock engineering . Compared with the in-situ testing method, the empirical relationship method which bases on the in -situ testing result, the related rock masses’ geological characteristics and the interior rock mechanics laboratory test is much more convenient in the process of estimating the deformation modulus of rock masses and more suitable for small and medium sized engineering projects .In this paper , the feasibility of using the RQD of drill core to estimate the deformation modulus of rock masses was discussed .Taking a nuclear power plant base in Shandong province as an example , a new estimation formula to predict the deformation modulus for RQD in the range from 0 to 60%was proposed on the basis of Zhang and Einsten ’ s estimation formula , and the new estimation revised the shortcoming of Zhang and Einsten for the less sample data of RQD in this range .The results showed a good agreement with the two formulas .At last, the relationship be-tween the ratios of the deformation modulus in different directions and RQD was discussed using the in -situ measured rock deformation modulus in different directions .