土工基础

土工基础 ›› 2022, Vol. 36 ›› Issue (2): 208-213.

• 专题论述 • 上一篇    下一篇

基于EVS混合建模方法的应用研究

黄士睿1,2，刘均利1,2   

  1. (1.桂林理工大学土木与建筑工程学院，广西桂林 541004；2.广西岩土力学与工程重点实验室，广西桂林 541004)
  • 收稿日期:2020-12-05 修回日期:2020-12-09 出版日期:2022-04-30 发布日期:2022-04-27
  • 作者简介:黄士睿(1995-)，男，硕士研究生，研究方向为岩溶地区桩基施工技术管理。
  • 基金资助:
    国家自然科学基金资助项目(51468013)

An Application of EVS Hybrid Modeling Method

HUANG Shirui1,2, LIU Junli1,2   

  1. (1.College of Civil Engineering and Architecture, Guilin University of Technology, Guilin 541004;
    2.Guangxi Key Laboratory of Geomechanics and Geotechnical Engineering, Guilin 541004)
  • Received:2020-12-05 Revised:2020-12-09 Online:2022-04-30 Published:2022-04-27

摘要： 为了解决EVS程序在岩溶区域中单独使用地层建模方法建模时无法对溶洞进行层序划分，而单独使用岩性建模方法进行建模时又不能清晰反映层间界面关系的缺陷问题，通过分析地质统计学中克里金法的计算原理，拟将两者相结合，提出一种在EVS程序中既能表达地质的层间界面关系，又能同时对溶洞进行建模的地层岩性混合建模方法。以桂林市阳朔县学院桥桥址区的58个实测钻孔数据为依据，对EVS程序的模块进行调整后采用混合建模方法对学院桥桥址区的地质进行三维地质建模研究，并与原有的岩性建模方法进行对比分析，通过对混合模型和岩性模型进行交叉验证，表明混合模型的理论精度更高。使用该方法建立的三维地质模型可用于预判桩基施工时遇到的问题，为研究合理的施工方案提供支持。

关键词: 岩溶, EVS, 三维混合建模, 岩性建模, 桩基施工

Abstract: In this paper, a hybrid modeling method using Earth Volumetric Studio (EVS) is proposed in order to resolve the problem of the EVS program could not divide the sequence of karst rock cavities when using the stratigraphic modeling method alone in a karst terrain. The lithology modeling method alone, it could not clearly reflect the defects at the interface relationship among the layers. Throughout analyzing the principles of the Kriging Method in the geostatistics, the proposed hybrid modeling method can not only present the interlayer interface relationship of geology, but also model the karst rock cavities. Based on data measured in 58 boreholes in a college bridge site area of Yangshuo County, Guilin, a hybrid modeling method was used to conduct a three-dimensional geological modeling study on the geologic conditions of the project site. The original lithology modeling method was compared and analyzed. Both the hybrid model and the lithology model were cross validated, which showed that the theoretical accuracy of the proposed hybrid model was better. The three-dimensional geological model established by this method can be used to predict the problems encountered in the pile installation.

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