【作者】 高丙丽；

【导师】 王芝银； 杨志法；

【作者基本信息】 西安科技大学 ， 岩土工程， 2005， 硕士

【摘要】 对于结构面和块体的几何条件、位置的确定,以及他们的稳定分析来说,坐标投影 作图法有不少独到之处,由于块体,尤其是多块体的坐标投影图解较为复杂,作图效率 不高,所以有必要将之计算机化。本文针对上述困难开发了软件 CPH,该软件主要实现 三个功能:第一,确定结构面的产状和位置;第二,确定可能不稳定块体的几何形状及 可能不稳定块体的个数;第三,针对各个可能不稳定块体,结合地下工程平面问题弹性 有限元图谱,计算出块体范围内各结构面及块体本身的稳定系数。坐标投影作图法的优 势在于不但能对多块体进行稳定分析,而且对单一的结构面也可对其进行稳定分析。 根据坐标投影作图法的原理,本文采用面向对象的程序设计方法实现了对坐标投影 作图法的计算机化,并开发了相应的软件 CPH。考虑到软件的可丌发性及可视化,程序 语言选用了 VC++。 本文的创新点在于能较准确地利用三点式(即通过空问不再同一直线上的三个点的 坐标列出结构面的方程)确定结构面的方程,从而也就确定了其产状,避免了以往用罗 盘测量结构面产状时由于手的抖动等而引起的误差。 本文主要针对圆拱直墙式地下工程开展研究,并将研究成果及开发的软件 CPH 应用 于广西龙滩水电站和河南南湾水库两个工程实例中,以证明软件 CPH 的可行性。另外, 对 CPH 稍加改动,也可应用于边坡及其它形式的地下工程。 由于时间有限,本文未将可视化部分编入 CPH 内,但 CPH 软件为以后的进一步开 发提供了平台。 最后,本文指出了坐标投影作图法及软件 CPH 的部分发展趋势及难题,为以后的研 究提供了一定的参考。更多还原

【Abstract】 Based on coordinate projection theory, coordinate projection method has been computerized by means of object oriented programming in this paper. The corresponding software is named CPH. In view of further exploitation and visualization of it, CPH is programmed by VC++. In order to conquer the complexity and low efficiency of coordinate projection of block especially many blocks, CPH is put forward. CPH has three main functions as follows: determining structural planes occurrence; determining the geometry shape and number of potentially instable blocks; combining the elastic finite element atlas of plane problem in underground excavation, determining the safety factor of structural plane and block. The advantage of coordinate projection method is to analysis the stability of not only block but also structural plane and judge whether structural plane or block first collapses. Based on not collinear three points on the structural plane, structural plane equation can be determined correctly and thus its occurrence avoiding the error aroused by compass can be obtained. The above is just the innovation of the paper. The paper aims to underground excavation with circular arch and straight wall. By applying the research findings and CPH to Longtan hydroelectric station in Guangxi province and Nanwan reservoir in Henan province, CPH proves reasonable and valuable in the field of geomechanics and engineering. In addition, after being modified a bit, CPH can also be applied to slope and other underground excavations. Due to short time, visualization of CPH is not included in this paper, but CPH has provided platform for further exploitation. The trend and difficulty of the coordinate projection method and CPH are pointed out in the final of the paper in order to provide future research with references. Keywords: Coordinate projection method Block Stability VC++ CPH.更多还原