CAJ | 학술논문

岩体隧洞结构面的数量、产状和发育情况是评价隧洞透水性和稳定性的重要指标。采用三维激光测量技术可以快速获取隧洞周围岩体激光点云数据和结构面的几何信息。提出了基于柱面投影和Delaunay生长算法的激光点云的三角网重构技术，利用构建的三角网平面方程的法向向量计算出单个三角网平面的产状，并应用FK M聚类算法进行隧洞岩体结构面产状的模糊群聚分类。该方法可以快速得到不同组的优势产状，且分类结果可用不同颜色进行空间显示。最后运用自主研发的FSS软件对某隧洞的岩体结构面优势产状进行了研究，研究结果表明：1）基于柱面投影和Delaunay生长法的点云构网方法特别适合于隧洞工程，构网速度快、效率高，重构得到的三角网表面与被采样的岩体表面拓扑差别最小；2）FK M模糊群聚方法对隧洞岩体结构面的群聚分类结果可靠、合理，具有较强的通用性和推广性。
암체수동결구면적수량、산상화발육정황시평개수동투수성화은정성적중요지표。채용삼유격광측량기술가이쾌속획취수동주위암체격광점운수거화결구면적궤하신식。제출료기우주면투영화Delaunay생장산법적격광점운적삼각망중구기술，이용구건적삼각망평면방정적법향향량계산출단개삼각망평면적산상，병응용FK M취류산법진행수동암체결구면산상적모호군취분류。해방법가이쾌속득도불동조적우세산상，차분류결과가용불동안색진행공간현시。최후운용자주연발적FSS연건대모수동적암체결구면우세산상진행료연구，연구결과표명：1）기우주면투영화Delaunay생장법적점운구망방법특별괄합우수동공정，구망속도쾌、효솔고，중구득도적삼각망표면여피채양적암체표면탁복차별최소；2）FK M모호군취방법대수동암체결구면적군취분류결과가고、합리，구유교강적통용성화추엄성。
The number ,attitude and developmental state of rock mass discontinuity of tunnel are important indexes to evaluate permeability and stability of tunnel .Laser point cloud data and geometry information of rock mass discontinuity around the tunnel can be obtained quickly using the three dimensional measurement technology .The reconstruction technology of triangular mesh of laser point cloud was proposed based on the projection of cylinder method and Delaunay growth algorithm ,the attitude of single triangular mesh surface was calculated using the normal vector of the plane equation of the constructed triangular mesh ,and fuzzy cluster classification of the attitude of the discontinuity of tunnel was carried out with the application of FKM (Fuzzy K-Mean) cluster method . The different groups of the attitude in advantage can obtained quickly using this method ,and the spatial display of the result of the classification can be conducted with different colors .Finally ,the study of the attitude in advantage of the discontinuity of some tunnel was carried out using the software FSS developed independently ,the results of the study show that :1)The constructing mesh with point cloud method based on the projection of cylinder method and Delaunay grow th algorithm is particularly suitable for tunnel project , the speed of construction of mesh is fast , the efficiency is high , and the topology difference of the reconstructed surface of triangular mesh and the surface of sampling rock mass is minimum .2)The result of cluster classification of the structure surface of rock mass of tunnel with the method of FKM fuzzy cluster is reliable ,reasonable ,and has strong commonality and extension .