水电自动化与大坝监测
水電自動化與大壩鑑測
수전자동화여대패감측
HYDROPOWER AUTOMATION AND DAM MORNITORING
2014年
3期
21-25
,共5页
钢筋计%锚杆应力计%测值超极限范围
鋼觔計%錨桿應力計%測值超極限範圍
강근계%묘간응력계%측치초겁한범위
reinforcement meter%bolt stress meter%measured values over the limit gauge
钢筋计与锚杆应力计是地下洞室与边坡支护的常用仪器，主要用于测量地下洞室支护的钢筋应力和锚杆的锚固力与拉拔力。工程使用中发现有部分钢筋计与锚杆应力计的测值已经超出钢筋和锚杆本身的极限强度，但结构物并没有发现损坏。找出这些超出钢筋极限强度测值产生的原因，及判断这些测值是否可信是一个急需解决的问题。通过分析，得到仪器受侧向合力作用弯曲变形是产生这一现象的原因，并通过实验进行了验证。
鋼觔計與錨桿應力計是地下洞室與邊坡支護的常用儀器，主要用于測量地下洞室支護的鋼觔應力和錨桿的錨固力與拉拔力。工程使用中髮現有部分鋼觔計與錨桿應力計的測值已經超齣鋼觔和錨桿本身的極限彊度，但結構物併沒有髮現損壞。找齣這些超齣鋼觔極限彊度測值產生的原因，及判斷這些測值是否可信是一箇急需解決的問題。通過分析，得到儀器受側嚮閤力作用彎麯變形是產生這一現象的原因，併通過實驗進行瞭驗證。
강근계여묘간응력계시지하동실여변파지호적상용의기，주요용우측량지하동실지호적강근응력화묘간적묘고력여랍발력。공정사용중발현유부분강근계여묘간응력계적측치이경초출강근화묘간본신적겁한강도，단결구물병몰유발현손배。조출저사초출강근겁한강도측치산생적원인，급판단저사측치시부가신시일개급수해결적문제。통과분석，득도의기수측향합력작용만곡변형시산생저일현상적원인，병통과실험진행료험증。
Reinforcement meter and bolt stress meter underground cavern with a common slope supporting instrument for measuring underground cavern shoring steel stress and anchor bolt force and pulling force.Proj ect uses were found to have some reinforcement meter and bolt strain gauge steel and measured value has exceeded the ultimate strength of anchor itself, but the structure of matter and found no damage.Identify these measured values exceed the ultimate strength of reinforced cau-ses,and determine the credibility of these measured values is an urgent problem.Through analysis,the joint effect of the in-strument by the lateral bending deformation is the reason for this phenomenon,and verified by experiment.
