鉆(zhan)(zhan)探(tan)式抽(chou)沙(sha)(sha)(sha)(sha)(sha)船(chuan)(chuan)(chuan)(chuan)又(you)叫(jiao)做鉆(zhan)(zhan)探(tan)式采(cai)沙(sha)(sha)(sha)(sha)(sha)船(chuan)(chuan)(chuan)(chuan)，它是一種領用鉆(zhan)(zhan)桿對河(he)床底部(bu)的(de)(de)泥沙(sha)(sha)(sha)(sha)(sha)進行提取的(de)(de)設備。鉆(zhan)(zhan)探(tan)式采(cai)沙(sha)(sha)(sha)(sha)(sha)船(chuan)(chuan)(chuan)(chuan)的(de)(de)船(chuan)(chuan)(chuan)(chuan)架高(gao)大，呈直邊三角形。鉆(zhan)(zhan)探(tan)式采(cai)沙(sha)(sha)(sha)(sha)(sha)船(chuan)(chuan)(chuan)(chuan)的(de)(de)船(chuan)(chuan)(chuan)(chuan)架上(shang)有鉆(zhan)(zhan)孔機和抽(chou)沙(sha)(sha)(sha)(sha)(sha)管，鉆(zhan)(zhan)桿位于抽(chou)沙(sha)(sha)(sha)(sha)(sha)船(chuan)(chuan)(chuan)(chuan)的(de)(de)下(xia)部(bu)。當(dang)鉆(zhan)(zhan)探(tan)式采(cai)沙(sha)(sha)(sha)(sha)(sha)船(chuan)(chuan)(chuan)(chuan)的(de)(de)鉆(zhan)(zhan)頭(tou)打穿泥層(ceng)后，用真空機抽(chou)吸泥層(ceng)下(xia)面的(de)(de)沙(sha)(sha)(sha)(sha)(sha)子(zi)提到篩板上(shang)，再通過(guo)篩板濾水(shui)把沙(sha)(sha)(sha)(sha)(sha)輸(shu)送到運(yun)沙(sha)(sha)(sha)(sha)(sha)船(chuan)(chuan)(chuan)(chuan)。這種鉆(zhan)(zhan)探(tan)式采(cai)沙(sha)(sha)(sha)(sha)(sha)船(chuan)(chuan)(chuan)(chuan)每小時可抽(chou)沙(sha)(sha)(sha)(sha)(sha)100-400噸,抽(chou)沙(sha)(sha)(sha)(sha)(sha)深度可以達(da)到55米以上(shang)。
      但是相對(dui)于(yu)其他的(de)(de)抽(chou)沙(sha)(sha)(sha)(sha)(sha)船(chuan)(chuan)(chuan)(chuan)(chuan)，鉆(zhan)探(tan)式采(cai)沙(sha)(sha)(sha)(sha)(sha)船(chuan)(chuan)(chuan)(chuan)(chuan)只(zhi)適(shi)用于(yu)特定環境，它(ta)對(dui)于(yu)水下(xia)泥沙(sha)(sha)(sha)(sha)(sha)層的(de)(de)厚度(du)(du)要(yao)求比較(jiao)(jiao)高，對(dui)于(yu)水下(xia)的(de)(de)真(zhen)空度(du)(du)要(yao)求也非常嚴格，因(yin)而鉆(zhan)探(tan)式采(cai)沙(sha)(sha)(sha)(sha)(sha)船(chuan)(chuan)(chuan)(chuan)(chuan)的(de)(de)工(gong)程造價(jia)比較(jiao)(jiao)高。還有就是鉆(zhan)探(tan)式采(cai)沙(sha)(sha)(sha)(sha)(sha)船(chuan)(chuan)(chuan)(chuan)(chuan)不(bu)附(fu)帶自航系統，因(yin)此整套設(she)備的(de)(de)運輸極其不(bu)方(fang)(fang)便，多數情況對(dui)鉆(zhan)探(tan)式抽(chou)沙(sha)(sha)(sha)(sha)(sha)船(chuan)(chuan)(chuan)(chuan)(chuan)采(cai)用定點(dian)施工(gong)方(fang)(fang)式。再(zai)有就是一(yi)般的(de)(de)鉆(zhan)探(tan)式抽(chou)沙(sha)(sha)(sha)(sha)(sha)船(chuan)(chuan)(chuan)(chuan)(chuan)為了節省空間，也不(bu)附(fu)帶存貯船(chuan)(chuan)(chuan)(chuan)(chuan)艙，因(yin)此需(xu)要(yao)運沙(sha)(sha)(sha)(sha)(sha)船(chuan)(chuan)(chuan)(chuan)(chuan)或者(zhe)駁船(chuan)(chuan)(chuan)(chuan)(chuan)對(dui)抽(chou)沙(sha)(sha)(sha)(sha)(sha)船(chuan)(chuan)(chuan)(chuan)(chuan)抽(chou)取的(de)(de)泥沙(sha)(sha)(sha)(sha)(sha)進行儲運。