>
Fa   |   Ar   |   En
   Synchronicity of stress wave propagation in bolt body and anchorage medium  
   
نویسنده sun b. ,xie j.-h. ,zeng s.
منبع journal of engineering and technological sciences - 2017 - دوره : 49 - شماره : 2 - صفحه:247 -260
چکیده    Accurate assessment of anchoring quality depends on the accuracy of assessing stress wave velocity in the anchor system. stress wave velocity is closely related to collaborative vibration and depends on the degree of bonding between anchor body and anchorage medium. bonding differences can be large at different ages. based on stress wave reflection methods,non-destructive testing of anchors was performed using sensors arranged at the same cross-section of the anchor body and anchorage medium,which showed stress wave synchronization. in the early stage of filling,stress wave synchronicity was poorer between the anchor body and mortar. therefore,the anchor should not be treated as a composite material when determining its wave velocity. once the mortar hardens,the stress waves become more synchronous and the anchor can be regarded as a composite material. stress wave synchronicity between the anchor body and mortar is related to mortar age and anchorage length. the anchor length required to provide stress wave synchronization between the anchor body and mortar decreases with increasing mortar age. stress wave velocity rules were derived for different ages to provide the basis for accurately determining the stress wave velocity in the anchor. © 2017 published by itb journal publisher.
کلیدواژه Anchoring quality; Collaborative length; Geotechnical engineering; Non-destructive testing; Stress wave propagation velocity; Synchronization
آدرس school of civil engineering,university of south china,hengyang, China, school of civil engineering,university of south china,hengyang, China, school of nuclear resources engineering,university of south china,no28,west changsheng road,hengyang, China
 
     
   
Authors
  
 
 

Copyright 2023
Islamic World Science Citation Center
All Rights Reserved