placeability 中文意思是什麼
placeability
解釋
混凝土的工作度-
3. the carstic formation is permeable layer and has quite good placeability, its relations of the water permeabitity and placeability have three types as follows : high unit - absorption rate with big grout consumption, the grouting is necessary ; low unit - absorption rate with little grout consumption, the grouting is no need ; low unit - absorption rate with big grout consumption, grouting is no need combining with control the grouting pressure and grout consumption. 4
巖體透水率與可灌性之間一般存在以下三種組合關系：高單位吸水率與大吃漿量的組合，灌漿是必需的；低單位吸水率與小吃漿量的組合，沒有必要灌漿；低單位吸水率與大吃漿量的組合，應進行灌漿處理，但應適當控制灌漿壓力和耗漿量。 -
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:在以礫卵石層為持力層的樁基設計中，由於其可鉆性差、易坍塌，強度相對較低，但是具有較大的孔隙率和滲透系數，可灌性較好，採用一定壓力對鉆孔灌注樁樁底礫卵石持力層注入水泥漿液對其進行加固處理，可以較大地提高其承載力，並能取得較為明顯的經濟效益。
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