武汉理工大学学报（交通科学与工程版）
武漢理工大學學報（交通科學與工程版）
무한리공대학학보（교통과학여공정판）
Journal of Wuhan University of Technology (Transportation Science & Engineering)
2015年
5期
1079-1082,1086
,共5页
疏浚抓斗%挖掘过程%挖掘阻力%油缸推力
疏浚抓鬥%挖掘過程%挖掘阻力%油缸推力
소준조두%알굴과정%알굴조력%유항추력
dredging grab%mining process%digging resistance%oil cylinder thrust
为了解电液疏浚抓斗挖掘过程受力情况并计算油缸推力大小，根据疏浚土壤的破坏变形机理，对疏浚抓斗的挖掘阻力作了分析。通过分析各种环境因素对挖掘阻力的影响并结合前人对反铲斗挖掘土壤实验的研究，建立了疏浚抓斗的受力数学模型，得出了挖掘阻力的基本方程式。以136 m2抓斗挖掘珊瑚礁为例计算出了各开度下的挖掘阻力，并绘制出了油缸推力随抓斗开度变化的曲线。
為瞭解電液疏浚抓鬥挖掘過程受力情況併計算油缸推力大小，根據疏浚土壤的破壞變形機理，對疏浚抓鬥的挖掘阻力作瞭分析。通過分析各種環境因素對挖掘阻力的影響併結閤前人對反鏟鬥挖掘土壤實驗的研究，建立瞭疏浚抓鬥的受力數學模型，得齣瞭挖掘阻力的基本方程式。以136 m2抓鬥挖掘珊瑚礁為例計算齣瞭各開度下的挖掘阻力，併繪製齣瞭油缸推力隨抓鬥開度變化的麯線。
위료해전액소준조두알굴과정수력정황병계산유항추력대소，근거소준토양적파배변형궤리，대소준조두적알굴조력작료분석。통과분석각충배경인소대알굴조력적영향병결합전인대반산두알굴토양실험적연구，건립료소준조두적수력수학모형，득출료알굴조력적기본방정식。이136 m2조두알굴산호초위례계산출료각개도하적알굴조력，병회제출료유항추력수조두개도변화적곡선。
To understand the bearing condition of electric hydraulic dredging grab garbing process and calculate strain driving force ,the paper discusses the digging resistance on the basis of analyzing dred‐ging soil destruction deformation mechanism .By combining the analysis of various environmental fac‐tors on the influence of digging resistance and the previous studies of back‐hoe bucket scooping up soil experiment ,the dredging grab mechanical force model is established and the basic equations of digging resistance is computed .Finally ,the paper takes 136 m2 dredging grab digging coral reef as an example to calculate the digging resistance under different opening ,also ,the curve of strain driving force chan‐ges with the opening is drawn .
