易鉆地層 的英文怎麼說
中文拼音 [yìzhēndecéng]
易鉆地層
英文
easy-to-drill formation-
Compared with the mud on wall form hole technology, clash stake technology or vibration sink pipe technology used in complex foundation stake forming, it has advantages of no vibration, no pollution, and no noise. in addition, since the concrete pressed into the drill stem sent vibration free concrete to the pump, so it is eas y to ensure the quality of the stake body. compared with the mud on wall and dry work form hole technology, the side obstruction and end obstruction of screw drill press concrete stake have all been accordingly improved, the weight bearing is better, and the transmutation of the complex foundation is less
其中，螺旋鉆孔壓灌混凝土成樁技術自研製以來，已在多項復合地基工程中進行了應用，較好地解決了軟弱地層成孔困難的問題，適應地質條件范圍廣，成樁速度較快，工期短、工效高；與復合地基成樁時的泥漿護壁成孔工藝、振沖樁工藝或振動沉管工藝施工比較，具有無振動、無污染、無噪音的優點；另外，壓入鉆桿內的混凝土為泵送免振混凝土，因此樁體質量易於保證；與泥漿護壁和干作業成孔工藝相比，螺旋鉆孔壓灌混凝土成樁的側阻和端阻都有相應的提高，樁的承載性能較好，復合地基的變形較小。The drilling technology of stratum collapseleaking off
1北油田易坍塌漏失阻卡地層的鉆井技術By adopting unique technique, we mount metal outside the special ceramic liner so that the ceramic liner for mud pump can take the advantages of special ceramics, including high hardness, good anti - wear ability and small coefficient of thermal expansion
缸套是泥漿泵的主要易損件，由於工作條件十分惡劣，金屬缸套不耐腐蝕，使用壽命短，在地層復雜的條件下鉆井時，常因更換缸套而影響鉆井效率，此項工作勞動強度大。Easy - to - drill formation
易鉆地層Abstract : the paper presented a kind of drilling hole method that adopted direct circulation and percussion drilling, casing and cliff - protection by mud. the method applied in the complex gravel layer which has the trend to emerge cave - in and drop from the drilling wall
文摘:介紹一種在砂卵石地層層厚復雜、孔壁易掉塊、易坍塌的鉆孔的成孔方法? ?正循環回轉與沖擊鉆進、套管與泥漿護壁成孔。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。Abstract : the traditional method of anchor pile on the deep foundation pit bracing in the gravel stratum with high hardness, poor drilling and easy slump is complicated owing to difficult construction, low efficiency and high cost
文摘:卵礫石地層硬度大，可鉆性差，易坍塌，這種地層的深基坑支護若採用傳統的錨桿樁，施工難度大，工效低，工程造價高。分享友人