| 龚芯磊.基于块体理论的多结构面控制下岩质边坡关键块体研究[J].贵州地质,2023,40(2):193-200 |
| 基于块体理论的多结构面控制下岩质边坡关键块体研究 |
| Research on Key Rock Mass of Rock Slope Controlled by Multiple Structural Planes Based on Rock Mass Theory |
| 投稿时间：2023-02-21 |
| DOI： |
| 中文关键词: 块体理论 岩质边坡 可动块体 关键块体 全空间赤平投影 |
| 英文关键词:Rock mass theory Rock slope Movable rock mass Key rock mass Full space equatorial projection |
| 基金项目:贵州省第二批20个县(市、区)地质灾害详细调查及风险评价项目(GZMC-ZG20201036) |
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| 中文摘要: |
| 岩质边坡具有不连续性、多变性及各向异性的特点，其稳定性很大程度上受边坡内部发育的多结构面的影响，表现为块体的不稳定性，因此，寻求对边坡稳定性造成不良影响的关键可动块体是一项重要课题。通过块体理论全空间赤平投影与矢量计算的方法，捕获关键块体，并通过矢量计算确定块体的运动方式，计算其稳定系数，证明了全空间赤平投影在确定可动块体上的简便性，其直观的图示能避免矢量法较为繁琐的计算步骤，而在可动块体运动形式的判别上，两者必须相辅相成。通过应用块体理论确定的关键块体相较于传统方法应用于岩坡稳定性分析时强调的“整体性”而更加侧重于边坡内部块体的“个体性”与“精准性”，突破了岩质边坡稳定性分析的模糊性问题，也使边坡防治更精准更具针对性。 |
| 英文摘要: |
| The rock slope is characterized by discontinuity，variability and anisotropy，and It’s stability is largely affected by the multi-structural plane developed inside the slope，which is manifested as the instability of the block. Therefore，it is an important task to find the key movable blocks which have adverse effects on slope stability. By the method of full-space erectio projection and vector calculation of block theory to capture the key blocks，and the motion mode of the blocks is determined by vector calculation，and its stability coefficient is calculated，which proves the simplicity of full-space erectio projection in determining movable blocks. Its intuitive graphics can avoid the complicated calculation steps of vector method，and in the identification of movable block motion forms，The two must complement each other. Key blocks identified by applying block theory compared with the "integrity" emphasized by the traditional method applied to the rock slope stability analysis，the movable blocks determined by the block theory pay more attention to the "individuality" and "precision" of the internal blocks of the slope，which breaks through the fuzzy problem of the rock slope stability analysis，and also makes the slope prevention more accurate and targeted. |
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