CAJ | 학술논문

爱斯泼（A..spo..）硬岩实验场（HRL）是瑞典拟建的永久储放核废料的场地。实测地应力结果表明，应力的大小和方位变化较为复杂。通过初步分析认为，场地附近地应力的变化与断裂构造的发育有关。应用离散元方法，分别选择平面模型和剖面模型模拟了应力场。模拟结果表明，地应力的量值和方位在断裂附近均发生明显变化，且与实测结果较吻合。主应力在断裂附近发生不同程度的偏转，偏转的幅度与断裂走向和区域应力方向之间的夹角有关。应力的量值在断裂附近也有明显变化。在剖面模型中，较缓倾角断裂模型的模拟结果最接近实测结果。文中还探讨了断裂带法向刚度和切向刚度的计算方法。
애사발（A..spo..）경암실험장（HRL）시서전의건적영구저방핵폐료적장지。실측지응 력결과표명，응력적대소화방위변화교위복잡。통과초보분석인위，장지부근지응력적변화 여단렬구조적발육유관。응용리산원방법，분별선택평면모형화부면모형모의료응력장。모의결과표명，지응력적량치화방위재단렬부근균발생명현변화，차여실측결과교문합。주응력재단렬부근발생불동정도적편전，편전적폭도여단렬주향화구역응력방향지간적협각유관 。응력적량치재단렬부근야유명현변화。재부면모형중，교완경각단렬모형적모의결과최접 근실측결과。문중환탐토료단렬대법향강도화절향강도적계산방법。
A..spo.. Hard Rock Laboratoty is a planned permanent repository for nuclear waste in Sweden. In situ stress measurement result indicates that both magnitude and orientation of stress vary greatly. It is thought that these var iations are related to the development of fractures. Using diserete element met hod and UDEC code, the autors simulated the stress field in A..spo.. area. The simulation considered both plane model and vertical model. The results show that both magnitude and orientation of stress change in the vicinity of fractured zones and coincid e well with the measured result. Principal stress reorientes near fractured zon e and the reoriented angle depends on the angle between fractured zone and the direction of boundary stress. For the vertical model, the result from lower ang le model is similar to the measured result. An approach to determining normal st iffness and shear stiffness of fracture zone is also discussed in the paper.