夯土-水硬石灰与石英砂浆液-木锚杆锚固系统性能

张景科1
Estimated H-index: 1
,
陈鹏飞1
Estimated H-index: 1
+ 3 Authors张帅1
Estimated H-index: 1
Sources
Abstract
运用室内物理模型试验和原位试验,对基于水硬石灰与石英砂浆液的木锚杆锚固系统在夯土介质中进行了拉拔测试与杆体-浆体界面应变监测,研究了该锚固系统的锚固性能与破坏模式、杆体-浆体界面剪应变分布与传递特征。试验结果表明,该锚固系统50 cm 锚固长度可以提供30~45 kN(室内)与16.2~19 kN(现场)的极限锚固力;锚固系统具有较强的延性;在加载进程中杆体-浆体界面的应力分布与传递特征具有单峰值或双峰值分布、界面应力向锚固末端传递、压应力出现在锚固段中末端等特征,表现出复杂的受力特性。研究结果表明,该锚固系统在结构形式和力学性能上适合于夯筑土遗址加固,并与遗址体具有较好的兼容性。
References0
Newest
Cited By2
Newest
#1Jingke Zhang (Lanzhou University)H-Index: 5
#2Li-xiang Zhang (Lanzhou University)
Last. Qiang-qiang PeiH-Index: 1
view all 6 authors...
Calcined ginger nuts admixed by fly ash and quartz sand (CGN-(F+S)) has been validated to be basically compatible to earthen sites as an anchor grout. Accelerated ageing tests including water stability test, temperature and humidity cycling test, soundness test and alkali resistance test are conducted with the objective to further research the property changes of CGN-(F+S) grout. Density, surface hardness, water penetration capacity, water permeability capacity, soluble salt, scanning electron m...
Source
#1Wei Lu (Xi'an University of Architecture and Technology)H-Index: 2
#2Dong Zhao (Xi'an University of Architecture and Technology)H-Index: 2
Last. Yu AiH-Index: 2
view all 4 authors...
This paper presents an analysis of bamboo bolt-modified slurry interfaces based on 26 in situ axial pull-out tests intended to highlight the mechanical behavior of interface under a fracture mode. Three impact factors are analyzed: anchorage length, bolt diameter, and bolt hole diameter, using the same materials of bamboo and modified slurry. The result shows that the interface between the bamboo bolt and anchoring agent is the control interface of an anchorage system, and the local behavior of ...
8 CitationsSource