正修技術(shù)學(xué)院土木工程系-展示頁
2025-02-23 22:50本頁面
【正文】 Associate Professor? Department of Civil Engineering,? ChengShiu Institute of Technology? ABSTRACT? A new world of puterbased automation and inter work are ing with the new twentyone century. Digitalizing civil engineering resources for application is very important in the field of construction automation. This study is to present the application of the Rankine earth pressure theory to the anchored sheet pile in sandy layer. The soil layer is homogeneous and limited to contain no surcharge loading and lateral force. The software to design the anchored sheet pile is coded using Visual BASIC (VB) in the paper. The functions of the software include the calculation of peration depth, the determination of the tensile force of anchored rod, and the calculation of the maximum bending moment of the sheet pile for the varied soil layer conditions. The results of the analysis are summarized to the design tables and charts for the purpose of engineer application. Finally, the VB program is put on the Web site as a digitalized geotechnical engineering resource for the fast information transfer and public domain utility.? Keywords： Anchored sheet pile, Anchored rod, Construction automation, Digitalization.2? 一、研究目的與研究內(nèi)容? 本研究之主要目的為砂土層錨式版樁之設(shè)計與程式撰寫及應(yīng)用，本研究所設(shè)計完成之程式，可求得版樁之埋土深度、錨桿拉力及最大彎矩之大小。期望能將大地材料之試驗數(shù)據(jù)及工程設(shè)計與 VB軟體程式相融合成一套有關(guān)大地材料的輔助教材，並逐漸 e化土木教學(xué)資源。? (二 )錨式版樁 VB程式撰寫。? 二、文獻回顧? 於傍水工程 (如港灣工程、河川整治工程 )或深開挖工程，於懸臂式版樁之使用有其限制時，常將接近版樁牆頂之一點以錨桿加以固定，而形成錨式版樁牆。亦可不引入安全係數(shù)，將所求之理論貫入深度 D值，增加 20~40%以提高其安全度，本法為較常用之設(shè)計法，本文之論述及程式設(shè)計均採用此方法，不引入安全係數(shù)，且建議工程上貫入深度之使用值為 。? (a)自由端點法 (b)固定端點法? 圖一 錨式版樁分析法? 錨式版樁牆在傍水工程上之應(yīng)用實例如圖二所示，兩版樁牆間以一定間距之鋼桿連繫而成，爾後再繼續(xù)填土至版樁牆之頂部，所需注意者為該鋼桿純?yōu)槔瓚?yīng)力並未施予預(yù)力。4? 圖三 砂土層錨式版樁牆側(cè)向淨土壓力分佈圖與彎矩分佈示意圖? 於地表
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