水利工程软弱层带地质特性分析  

Analysis of Geological Characteristics of Weak Layers in Hydraulic Engineering

作　　者：张韩丰 李华军 ZHANG Han-feng;LI Hua-jun(Zhejiang Engineering Survey and Design Institute Group Co.Ltd.,Hangzhou 310000,China)

机构地区：[1]浙江省工程勘察设计院集团有限公司,杭州310000

出　　处：《工程建设与设计》2024年第22期17-19,共3页Construction & Design for Engineering

摘　　要：依托杭州市山区某混凝土拱坝开挖断层软弱带进行不同空间分布下的物理力学指标发展规律分析,在此基础上构建软弱带ANSYSY有限元模型,并开展深孔固结灌浆加固效果评价。研究结果表明,软弱带含水率、压缩系数随深度增大呈减小趋势;黏聚力随深度增大整体呈线性增大趋势;加固下拱坝最大主拉应力、主压应力均满足技术规范要求。This article analyzes the development laws of physical and mechanical indicators under different spatial distributions based on the excavation fault weak zone of a concrete arch dam in the mountainous area of Hangzhou. Based on this, an ANSYS finite element model of the weak zone is constructed and the effectiveness evaluation of deep hole consolidation grouting reinforcement is carried out. The research shows that the water content and compression coefficient of the weak zone decrease with increasing depth;the cohesive force shows a linear increasing trend as the depth increases;the maximum principal tensile stress and principal compressive stress of the reinforced arch dam meet the technical specifications.

关 键 词：层状软弱带 地质特性 混凝土拱坝 加固效果 

分 类 号：TV221.2[水利工程—水工结构工程]