底砾 meaning in English

anchor stone
anchorage stone
basal debris
deep gravel

Abstract : in some project , pebble is used in bearing stratum . for the resean of lower strengthand bad property of construction . the bearing capacity of pebble can ' t achieve the reauirement of up - structure . but the pebble soild has higher permeability coefficient and placeability . the method has remarkable economic results
文摘:在以砾卵石层为持力层的桩基设计中，由于其可钻性差、易坍塌，强度相对较低，但是具有较大的孔隙率和渗透系数，可灌性较好，采用一定压力对钻孔灌注桩桩底砾卵石持力层注入水泥浆液对其进行加固处理，可以较大地提高其承载力，并能取得较为明显的经济效益。