頁籤選單縮合
題名 | 地工格網於砂土圍壓下之大型拉出試驗=Large Pullout Test of Geogrid with Sand Confinement |
---|---|
作者姓名(中文) | 張達德; 傅業誠; 張芳清; | 書刊名 | 中國土木水利工程學刊 |
卷期 | 10:1 1998.03[民87.03] |
頁次 | 頁39-46 |
分類號 | 441.12 |
關鍵詞 | 拉出試驗; 地工格網; 拉出阻抗; Pull-out test; Geogrid; Pull-out resistance; |
語文 | 中文(Chinese) |
中文摘要 | 本研究採用自行設計製作的大型拉出試驗儀,藉由盒壁上土壓力之監測,先行 探討盒壁邊界效應問題,本研究選用兩種格網與一種砂土進行相關之試驗,在格網拉出過 程中,以外接鋼弦至盒外之LVDT下量測格網上各點位移。結果清楚地描述在不同圍壓及拉 力荷重下,格網位移及應力、應變均由施拉端而逐漸向埋設末端遞減,並由結果中推估出 ,由主動土壓力所產生之拉出位移,僅約10mm,另外,配合文獻中建立的數學模式,進行 實驗結果之比對與分析,結果發現,在拉出試驗初期階段,預估頗為理想。 |
英文摘要 | This study adopts a large-scale pullout testing device and the earth pressure cell mounted on the testing box perimeter to evaluate the boundary effect. Two types of geogrids and one type of sand soil are used. Through the wired-LVDTs' for measurements on geogrid movement, the influence of different confining conditions and load levels can be observed. Using the test results, one can predict that with the certain active earth pressure, approximately 10mm pullout displacement occurrs. The model is assessed using the test results. Results show that the predication is fairly accurate in the initial stage of the pullout testing. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。