土工基础 ›› 2021, Vol. 35 ›› Issue (6): 777-780.

• 测试技术 • 上一篇    下一篇

某边坡工程岩体与锚固体间粘结强度试验分析

刘 晖1,王咸东2,盛光祺2   

  1. (1.昆明同心共筑工程技术有限公司,昆明 650000;2.昆明军龙岩土工程有限公司,昆明 650214)
  • 收稿日期:2020-07-30 修回日期:2020-08-05 出版日期:2021-12-30 发布日期:2021-12-24
  • 作者简介:刘晖(1985-),女,工程师,副总工程师,研究方向为岩土工程技术。

Experimental Study of Adhesion Strength Between Rock Anchor Grout and Rock for a Slope Stability Project

LIU Hui1, WANG Xiandong2, SHENG Guangqi2   

  1. (1.Kunming Tongxingongzhu Engineering Technology Co. Ltd., Kunming 650000;
    2.Kunming Junlong Geotechnical Engineering Co. Ltd., Kunming 650214)
  • Received:2020-07-30 Revised:2020-08-05 Online:2021-12-30 Published:2021-12-24

摘要: 边坡工程常遇到各类岩石的风化产物,当采用锚杆结构治理边坡时,岩体与锚固体间粘结强度是一项重要设计参数。通过对云南某山地边坡支护工程四次锚杆基本试验数据进行整理分析,得到了志留系下统全风化、强风化板岩锚杆锚固体极限粘结强度标准值(frbk);分析锚固段长度对frbk值的影响,给出类似地质条件临界锚固长度建议值,并提出锚杆成孔、注浆等施工工艺技术对frbk取值的影响。

关键词: 坡支护, 锚杆, 基本试验, 岩土体与锚固体极限粘结强度标准值

Abstract: The nominal adhesion strength between the rock anchor grout and heavily weathered slate rock mass Lower Series of Silurian Period was back-analyzed from the in-situ critical testing on four rock anchors. The influence of the grout length on the nominal adhesin strength was evaluated and the critical grout length in the similar geological conditions was also proposed. The influence of the borehole installation, and grouting procedures on the nominal adhesion strength was also investigated.

Key words: slope stabilization, ground anchors, critical tests, nominal adhesion strength between grouts and rock mass

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