钻卡 meaning in Chinese

drill chuck

However , there are many troubles in constructing in gravel , such as drilling difficult , hole collapsing and drill losing , which will lead to enlarge or shrink pile ' s diameter , form fault pile , delay the time , increase the use of material and higher the investment
但灌注桩在卵石层中施工或穿越卵石层会遇到钻进困难、孔壁易塌、掉钻卡钻等诸多问题，造成扩径、缩径、断桩等病害，使工期延长，材料用量增加，费用增高。