简介:利用模型梯度法和Poisson积分法将地面重力数据向上延拓,并在上延点处与航空重力测量结果进行比对。通过算例比较可知,Poisson积分法在考虑边界效应的情况下,可获得比模型梯度法更优的结果。因此,Poisson积分法可作为衡量航空重力测量外符合精度的一种手段。
简介:【 摘要 】 目前,城镇公共排水管网建设主体多元化,竣工后的排水管网,无法正常移交到专业单位进行规范化管理。为了解决城镇排水问题,实现水环境质量根本性好转,改善城市生态环境,促进城市生态文明建设,通过先进的技术方法和仪器设备,查清城镇排水管道的健康状况并进行评估,为排水管道养护维修提供重要的基础数据和参考依据。 【 Abstract 】 At present, the main body of urban public drainage network construction is diversified. After completion, the drainage network can not be transferred to professional units for standardized management. In order to solve the problem of urban drainage, realize the fundamental improvement of water environment quality, improve the urban ecological environment and promote the construction of urban ecological civilization, through advanced technology, methods and equipment, the health status of urban drainage pipelines is checked and evaluated, which provides important basic data and reference basis for maintenance of drainage pipelines.