地质剖面测制新方法的尝试——点坐标法

发布时间：2018-04-15 19:15

本文选题：横剖面 + 导线法　；参考：《地质力学学报》2017年06期

【摘要】：在区域地质调查中,地质剖面测制是一项必要的工作,而传统的导线法限制因素较多,质量和效率有待提高。在导线法的基础上,基于野外实践经验,提出了一种地质剖面测制新方法,即点坐标法。该方法的要点有:利用GPS获得地形控制点,以及分层、采样、产状、照相等位置的三维点坐标;构建一套函数公式,根据各点的三维空间坐标值,可计算获得点间平距、高差、方位角、坡度角等参数,从而投影绘制地质剖面图。该方法的主要优点有:不再需要测绳,可从人工测量记录转变为自动测量记录,实现了测量数据的数字化;避免了导线终点与实际终点不重合的情况;每一个分层点都有GPS坐标,便于野外复查。结合点坐标法测制地质剖面的实例证明,点坐标法较之导线法有多快好省的优点,值得在实际应用中广泛使用。
[Abstract]:In regional geological survey, geological profiling is a necessary work, but the traditional traverse method has many limiting factors, and its quality and efficiency need to be improved.On the basis of traverse method and field practice, a new method of geological profiling is proposed, namely point coordinate method.The main points of this method are as follows: using GPS to obtain the terrain control points, as well as the three-dimensional coordinates of the positions such as stratification, sampling, occurrence and photography, and constructing a set of function formulas, which can calculate and obtain the horizontal distance and height difference between points according to the three dimensional coordinate values of each point.Angle of azimuth, angle of slope, etc.The main advantages of this method are as follows: no longer need of measuring rope, it can be changed from manual measurement record to automatic measurement record, the digitization of measurement data can be realized, and the situation that the end point of wire does not coincide with the actual end point is avoided.Each stratified point has GPS coordinates for field review.It is proved that the point coordinate method has more advantages than the wire method in measuring geological section by combining point coordinate method, and it is worthy of being widely used in practice.
【作者单位】：长安大学地球科学与资源学院;国土资源部岩浆作用成矿与找矿重点实验室;中国地质科学院页岩油气调查评价重点实验室;
【基金】：国家自然科学基金项目(41402044) 中国博士后基金特别项目(2013T60869) 地质大调查项目(DD20160173)
【分类号】：P623

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