基于TLS的采动区高压线塔变形监测和结构安全分析.docVIP

基于TLS的采动区高压线塔变形监测和结构安全分析 马维青 穆昭玺 袁广林 国网山西省电力公司阳泉供电公司 华大天元(北京)科技股份有限公司 中国矿业大学力学与土木工程学院 X 关注成功！ 加关注后您将方便地在 我的关注中得到本文献的被引频次变化的通知！ 新浪微博 腾讯微博 人人网 开心网 豆瓣网 网易微博 摘????要： 矿区地表与其构建筑物容易受到开采影响, 发生移动和变形。高压线塔为重要构筑物, 其运行安全对地方工农业生产起重要作用, 开展线塔变形监测可为线路的灾变预警, 防护维修提供技术支持。针对现有水准或全站仪监测方法局限于单点测绘的缺点, 提出了基于三维激光扫描技术 (TLS) 的高压线塔全局监测方案。对于高压线塔地处野外布设控制点困难的问题, 提出一种无控制变形全局监测方法。结合某矿区的多期实测数据, 利用无控制变形全局监测方法求出了线塔的沉降和倾斜值, 并分析了线塔的整体变形规律, 验证了方法的可行性。采用有限元模拟, 分析了与监测数据相应的铁塔结构内力和变形, 对铁塔的结构安全进行了分析。 关键词： 采动区; 高压线塔; 三维激光扫描; 变形监测; 有限元模拟; 安全性; 作者简介：马维青 (1965-) , 山西朔州人, 本科, 高级工程师, 从事输电线路灾害防治研究工作。邮箱:maweiqing@ 基金：国家电网公司科技项目 (SGSXYQ00XTJS[2015]215) Deformation Monitoring and Structural Safety Analysis of High-voltage Tower in Mining Area Based on TLS Weiqing Ma Zhaoxi Mu Guanglin Yuan Shanxi Yangquan Electric Power Corporation; Huada Tianyuan (Beijing) Science Technology Co., Ltd.; School of Mechanics Civil Engineering, China University of Mining Technology; Abstract： The surface and the building in mining area are easily influenced by mining, moving and deformation. High-voltage wire tower is important structure, the function security plays an important role in the local industrial and agricultural production, to carry out line tower deformation monitoring can provide technical support for disaster warning of the line, preventive maintenance. In view of level or total station monitoring method, this method is limited to single point measuring, and puts forward the whole monitoring scheme of high voltage line tower based on TLS. Because High-voltage line tower in the field is difficult to set control points, putting forward an uncontrolled deformation monitoring method. Based on the multi period measured data of a mining area, the method proposed in this paper is analyzed the settlement of the tower and the value of the slope and the law of the overall deformation, verified the feasibility of this method. Finite element model simulation was carried out to analyze the internal force and deformatio