人工挖孔扩底桩在复杂砂页岩场地中的应用  

Application of Artificial Excavated Belled Pile in Complex Sand-Shale Fields

作　　者：孟庭威 武治安 

机构地区：[1]五矿邯邢矿业邯郸地质勘查有限公司,河北邯郸056000

出　　处：《勘察科学技术》2014年第2期41-44,共4页Site Investigation Science and Technology

摘　　要：人工挖孔扩底桩施工方便、速度较快、无污染、不需要大型机械设备,与钻孔灌注桩、混凝土打入桩、CFG桩等桩种相比其抗震能力强、造价低,从而在建筑工程中得到广泛应用。但其应用于复杂砂页岩场地的工程实例相对较少,本文对人工挖孔扩底桩在复杂砂页岩场地的应用进行了分析总结,供同类工程参考。Artificial excavated belled pile construction is convenient, fast, no pollution, needn＇t large mechanical equipment, and compared with bored piles, concrete driven pile and CFG pile, it has stronger seismic ability, lower cost, so it is widely used in construction engineering. But it＇s applicated in complex sand-shale engineering is relatively less. In this paper, the application of the artificial excavated belled pile in complex sand-shale fields are analyzed and summarized, and it can provides references for similar projects.

关 键 词：人工挖孔扩底桩 持力层 单桩竖向抗压静载荷试验 沉降量 

分 类 号：TU753.3[建筑科学—建筑技术科学]