SLOPE EXCAVATION QUALITY EVALUATION BASED ON THREE-DIMENSIONAL LASER SCAN DATA
HU Chao1，ZHOU Yihong1，2，3，ZHAO Chunju2，3，PAN Zhiguo2，3，FENG Chengcheng2，3
(1. School of Water Resources and Hydropower Engineering，Wuhan University，Wuhan，Hubei 430072，China； 2. College of Hydraulic and Environment Engineering，China Three Gorges University，Yichang，Hubei 443000， China；3. Collaborative Innovation Center for Geo-hazards and Eco-environment in Three Gorges Area， Hubei Province，Yichang，Hubei 443002，China)
Abstract：Hydraulic slope excavation usually have some characteristics such as huge face and tight period，high quality requirements and so on. The problems of traditional slope excavation evaluation method was analyzed，and then a three-dimensional laser scanning technology method for the slope excavation quality evaluation was presented. By using a random sample consensus algorithm，Bursa-Wolf models and other efficient algorithms to establish a method for slope excavation data acquisition，process flow. By analyzing the characteristics of the slope data，the point cloud data storage and management mechanism by implement relational databases based on B-tree and its expansion structure were established. Then according to the characteristics of slope evaluation excavation method，two evaluation methods were proposed：cross-sectional quality evaluation and excavation plane quality evaluation. The practical application proves that this method can rapidly evaluate and control the excavation quality，which can greatly improves the quality control excavation of efficiency and the level of information.
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2014, Vol. 33 
