山西建筑
山西建築
산서건축
Shanxi Architecture
2015年
34期
45-46
,共2页
SGS 模型%数值模拟%冲击回波法
SGS 模型%數值模擬%遲擊迴波法
SGS 모형%수치모의%충격회파법
SGS model%numerical simulation%impact-echo method
以冲击回波法识别测试盾构中注浆层的形状特征为研究目标，利用大型有限元软件 MSC. MARC 对盾构中 SGS（管片—注浆—围岩）模型进行瞬态冲击数值模拟，通过分析对模型施加瞬态冲击后提取的时程曲线和频谱图，验证了采用冲击法识别盾构中不同形状特征注浆层缺陷的可行性，并总结了识别规律。
以遲擊迴波法識彆測試盾構中註漿層的形狀特徵為研究目標，利用大型有限元軟件 MSC. MARC 對盾構中 SGS（管片—註漿—圍巖）模型進行瞬態遲擊數值模擬，通過分析對模型施加瞬態遲擊後提取的時程麯線和頻譜圖，驗證瞭採用遲擊法識彆盾構中不同形狀特徵註漿層缺陷的可行性，併總結瞭識彆規律。
이충격회파법식별측시순구중주장층적형상특정위연구목표，이용대형유한원연건 MSC. MARC 대순구중 SGS（관편—주장—위암）모형진행순태충격수치모의，통과분석대모형시가순태충격후제취적시정곡선화빈보도，험증료채용충격법식별순구중불동형상특정주장층결함적가행성，병총결료식별규률。
Taking the shape features of the grouting layer in the identification tests of impact-ech method in shield as the research aims,finite ele-ment software MSC. MARC was used to simulate the transient response of the SGS( shield segment-grouting-surrounding rock)model transient process of impact. By analyzing the time-history curve and frequency domain after transient process of impact,the feasibility of identifying abnor-mal grouting layers of different shapes in shield tunnel by impact-echo method was verified. The laws about identifying were summarized.
