基樁孔灌漿前污泥處理為何需要空壓機?它的作用在哪裡?謝謝。
2007-09-29 05:41:52 · 1 個解答 · 發問者 super 3 in 科學 ➔ 工程學
這是利用 air lift pump 的原理,將孔底污泥抽出來排掉。
基樁孔底污泥比較重 (所以才會沉在孔底),鑽掘機上都有污泥抽水機,污泥抽水機連接一大管,大管另一端深入孔底,大管內附一小管,小管管口在大管之底部內部且管口朝上,用空壓機由此一小管打入空氣,使污泥混合空氣,使污泥平均比重降低,容易由大管汲上來排掉。
參考資料(圖片):(圖片顯示 air lift pump 的原理,不是基樁設備,基樁設備可加裝,)
http://www.engnetglobal.com/tips/glossary.aspx?word=Air Lift Pumps
http://www.frontier.net/~ohare/airliftpumpsmart.gif
http://www.koenderswindmills.com/images/air_lift_pump.jpg
Airlift 是基樁術語 :
Airlift : A pressure method of cleaning loose material out of an open-ended cased pile, caisson or cofferdam cell. Usually compressed air is introduced into the water at the bottom of the casing via a small pipe inside a larger pipe. Air is directed upward out of the larger pipe; this upward flow tends to lift material in the pile.
參考資料:
http://www.apevibro.com/asp/glossary.asp?letter=a
http://www.engnetglobal.com/tips/glossary.aspx?word=Air Lift Pumps
http://en.wikipedia.org/wiki/Airlift_(dredging_device)
2007-09-29 06:51:42 · answer #1 · answered by travelpa 7 · 0⤊ 0⤋