土工基础 ›› 2023, Vol. 37 ›› Issue (3): 339-342.

• 工程实录 • 上一篇    下一篇

Origin在水电帷幕灌浆孔成形规律分析中的运用

邱顺兵   

  1. (中国人民解放军西部战区空军勘察设计院,成都〓610041)
  • 收稿日期:2021-11-28 修回日期:2021-12-18 出版日期:2023-06-30 发布日期:2023-07-03
  • 作者简介:邱顺兵(1986-),男,工程师,研究方向为岩土工程勘察、设计

Analysis of a Hydropower Cutting-Off Wall Grouting Borehole with Origin

QIU Shunbing   

  1. (Airforce Survey Design Institute, PLA Western War Zone, Chengdu 610041)
  • Received:2021-11-28 Revised:2021-12-18 Online:2023-06-30 Published:2023-07-03

摘要: 大岗山水电站帷幕灌浆工区岩脉陡倾,地层自然造斜规律显著,属于强造斜地层;帷幕灌浆孔防斜技术设计要求高,顶角要求达到≤0.5°·(100 m)-1,防斜技术难度大。利用Origin软件可以对灌浆孔孔斜数据进行多元统计、数值计算、回归分析、参数拟合等,利用Origin导出的钻孔三维轨迹图、各平面投影图、顶角和方位角拟合图,可定性、定量分析灌浆孔顶角和方位角发展变化、判断灌浆孔实际弯曲情况、预测灌浆孔轴线发展趋势,准确得出地层自然造斜规律,能较好满足大岗山水电站帷幕灌浆工区灌浆孔成形分析要求,可用于指导后续孔施工,在今后相关工程中参考运用。

关键词: Origin, 多元统计, 回归分析, 造斜规律

Abstract: The steep deep of the bedrock underneath the Dagangshen Power Station induces a significant challenge for the seepage cut-off wall grouting operation. The tilting requirement for the project has a very restrictive requirement with a maximum tilting angle of 0.5 degrees per 100 meters. This project utilized the software Origin to process the cut-off wall grouting data. The multivariate statistics, numerical analysis, regression analysis and back analysis are performed so that the grouting angle and orientations were closely monitored. The variation of borehole bending and the projected borehole tilting can be presented. The results can be satisfactorily applied in the construction monitoring of the Dagangshen cut-off wall grouting operations.

Key words: Origin, Multivariate statistics, Regression Analysis, Tilting Mechanism

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