CAJ | 학술논문

由于南水北调中线膨胀土开挖边坡裂隙结构面具有不易分辨且纹理模糊的特殊性，采用现有的数字地质编录技术费时费力，且增加人工选点误差，导致量测不准确。提出通过在膨胀土开挖边坡裂隙结构面上摆放L形标定板，结合基于SIFT的图像匹配技术与椭圆拟合的标志点检测技术自动获取同名点，最后利用空间垂直关系得到裂隙结构面的产状。南水北调中线的两段工程实验表明，该方法能够快速准确地量测裂隙结构面产状。
유우남수북조중선팽창토개알변파렬극결구면구유불역분변차문리모호적특수성，채용현유적수자지질편록기술비시비력，차증가인공선점오차，도치량측불준학。제출통과재팽창토개알변파렬극결구면상파방L형표정판，결합기우SIFT적도상필배기술여타원의합적표지점검측기술자동획취동명점，최후이용공간수직관계득도렬극결구면적산상。남수북조중선적량단공정실험표명，해방법능구쾌속준학지량측렬극결구면산상。
Due to the particularity of difficult identification and indistinct texture of the excavated expansive soil slope fissure structural plane in Middle Route Project of South to North Water Diversion, the present digital logging method requires time-consuming effort and increases the errors of manual point selection, resulting in inaccuracy measurement. We put forward a oc-currence analysis method, i. e, setting a L-type calibration plate on the fissure structural plane of the excavated expansive soil slope, automatically determining corresponding points by SIFT-based image matching technology and ellipse fitting-based mark point finding technology, and obtaining the fissure structural plane occurrence by spatial perpendicular relation. The engineering practices in 2 sections of Middle Route Project of South to North Water Diversion show that this method is feasible and can meas-ure the fissure structural plane occurrence quickly and accurately.