1、工程簡(jian)介
  著中(zhong)重(zhong)說明(ming)基礎工(gong)程中(zhong)的地質概況、地下(xia)水(shui)(shui)概況以及(ji)與降水(shui)(shui)有關的情況，即為什(shen)么要(yao)降水(shui)(shui)？
  2、降水方(fang)式方(fang)法(fa)及(ji)采(cai)取的措施
  現場井點布置，采用的設備型(xing)號，技(ji)術參(can)數等。
  3、降水工作中應注意的事項在降水施工過(guo)程(cheng)中，技術、質量、安全、環保(bao)應注意的事項
  4、計算書附后
  本節主要討論輕(qing)型(xing)井(jing)點降水有關計算

嘉興井點降水，通泉公司承接各種水井工程 

我們(men)是(shi)井?點(dian)(dian)(dian)(dian)降(jiang)(jiang)水(shui)(shui)(shui)鉆(zhan)井(jing)(jing)(jing)(jing)(jing)公(gong)司，井(jing)(jing)(jing)(jing)(jing)點(dian)(dian)(dian)(dian)降(jiang)(jiang)水(shui)(shui)(shui) 、鉆(zhan)井(jing)(jing)(jing)(jing)(jing)、銷售冷風機、水(shui)(shui)(shui)空調及安(an)(an)裝、基(ji)坑(keng)支(zhi)護、地(di)源(yuan)熱泵(beng)鉆(zhan)井(jing)(jing)(jing)(jing)(jing)、地(di)源(yuan)井(jing)(jing)(jing)(jing)(jing)水(shui)(shui)(shui)平(ping)管(guan)(guan)(guan)(guan)(guan)連接(jie)、地(di)源(yuan)熱泵(beng)系統室內外安(an)(an)裝、快速鉆(zhan)巖石深(shen)井(jing)(jing)(jing)(jing)(jing)、開鉆(zhan)大小深(shen)水(shui)(shui)(shui)井(jing)(jing)(jing)(jing)(jing)、水(shui)(shui)(shui)源(yuan)熱泵(beng)井(jing)(jing)(jing)(jing)(jing)、管(guan)(guan)(guan)(guan)(guan)井(jing)(jing)(jing)(jing)(jing)降(jiang)(jiang)水(shui)(shui)(shui)、輕型井(jing)(jing)(jing)(jing)(jing)點(dian)(dian)(dian)(dian)降(jiang)(jiang)水(shui)(shui)(shui)、自吸泵(beng)降(jiang)(jiang)水(shui)(shui)(shui)、等(deng)等(deng)。 井(jing)(jing)(jing)(jing)(jing)點(dian)(dian)(dian)(dian)降(jiang)(jiang)水(shui)(shui)(shui)，是(shi)人(ren)工降(jiang)(jiang)低地(di)下(xia)水(shui)(shui)(shui)位的一(yi)種方(fang)法。故又稱“井(jing)(jing)(jing)(jing)(jing)點(dian)(dian)(dian)(dian)降(jiang)(jiang)水(shui)(shui)(shui)法” 。在基(ji)坑(keng)開挖前，在基(ji)坑(keng)四周埋(mai)設(she)(she)一(yi)定數量的濾水(shui)(shui)(shui)管(guan)(guan)(guan)(guan)(guan)（井(jing)(jing)(jing)(jing)(jing)），利用(yong)(yong)(yong)(yong)抽水(shui)(shui)(shui)設(she)(she)備(bei)(bei)抽水(shui)(shui)(shui)使所(suo)挖的土始終保持干燥狀態的方(fang)法。 所(suo)采用(yong)(yong)(yong)(yong)的井(jing)(jing)(jing)(jing)(jing)點(dian)(dian)(dian)(dian)類型有：輕型井(jing)(jing)(jing)(jing)(jing)點(dian)(dian)(dian)(dian)、噴射井(jing)(jing)(jing)(jing)(jing)點(dian)(dian)(dian)(dian)、電滲井(jing)(jing)(jing)(jing)(jing)點(dian)(dian)(dian)(dian)、管(guan)(guan)(guan)(guan)(guan)井(jing)(jing)(jing)(jing)(jing)井(jing)(jing)(jing)(jing)(jing)點(dian)(dian)(dian)(dian)、深(shen)井(jing)(jing)(jing)(jing)(jing)井(jing)(jing)(jing)(jing)(jing)點(dian)(dian)(dian)(dian)等(deng)。 具(ju)體(ti)流程f 設(she)(she)備(bei)(bei)要求 1、井(jing)(jing)(jing)(jing)(jing)點(dian)(dian)(dian)(dian)設(she)(she)備(bei)(bei)主要包括井(jing)(jing)(jing)(jing)(jing)點(dian)(dian)(dian)(dian)管(guan)(guan)(guan)(guan)(guan)(下(xia)端(duan)為(wei)濾管(guan)(guan)(guan)(guan)(guan))、集水(shui)(shui)(shui)總管(guan)(guan)(guan)(guan)(guan)和(he)抽水(shui)(shui)(shui)設(she)(she)備(bei)(bei)等(deng)。 2、井(jing)(jing)(jing)(jing)(jing)點(dian)(dian)(dian)(dian)管(guan)(guan)(guan)(guan)(guan)采用(yong)(yong)(yong)(yong)Φ60×5長(chang)6.0m無(wu)縫(feng)鋼(gang)管(guan)(guan)(guan)(guan)(guan)。管(guan)(guan)(guan)(guan)(guan)下(xia)端(duan)配2.0m濾管(guan)(guan)(guan)(guan)(guan)，濾管(guan)(guan)(guan)(guan)(guan)采用(yong)(yong)(yong)(yong)與井(jing)(jing)(jing)(jing)(jing)點(dian)(dian)(dian)(dian)管(guan)(guan)(guan)(guan)(guan)同直徑(jing)(jing)鋼(gang)管(guan)(guan)(guan)(guan)(guan)，井(jing)(jing)(jing)(jing)(jing)點(dian)(dian)(dian)(dian)管(guan)(guan)(guan)(guan)(guan)和(he)濾管(guan)(guan)(guan)(guan)(guan)之(zhi)間(jian)連接(jie)鋼(gang)制管(guan)(guan)(guan)(guan)(guan)箍，與集水(shui)(shui)(shui)總管(guan)(guan)(guan)(guan)(guan)連接(jie)用(yong)(yong)(yong)(yong)耐壓膠(jiao)管(guan)(guan)(guan)(guan)(guan)，濾管(guan)(guan)(guan)(guan)(guan)鉆(zhan)梅花孔，直徑(jing)(jing)5mm，距15mm，外包尼龍網(100目(mu))五層，鋼(gang)絲網二層，外纏(chan)20#鍍鋅(xin)鐵絲，間(jian)距10mm。集水(shui)(shui)(shui)總管(guan)(guan)(guan)(guan)(guan)為(wei)內徑(jing)(jing)100—127mm的無(wu)縫(feng)鋼(gang)管(guan)(guan)(guan)(guan)(guan)，每節長(chang)4米，其間(jian)用(yong)(yong)(yong)(yong)橡皮(pi)套(tao)管(guan)(guan)(guan)(guan)(guan)連結(jie)，并用(yong)(yong)(yong)(yong)鋼(gang)箍接(jie)緊，以防漏(lou)水(shui)(shui)(shui)，總管(guan)(guan)(guan)(guan)(guan)上裝有與井(jing)(jing)(jing)(jing)(jing)點(dian)(dian)(dian)(dian)管(guan)(guan)(guan)(guan)(guan)聯結(jie)的短接(jie)頭，間(jian)距0.8米—1.2米。 3、每套(tao)抽水(shui)(shui)(shui)設(she)(she)備(bei)(bei)有真空泵(beng)一(yi)臺(tai)，離心泵(beng)一(yi)臺(tai)，水(shui)(shui)(shui)氣分離器(qi)一(yi)臺(tai)，每套(tao)井(jing)(jing)(jing)(jing)(jing)點(dian)(dian)(dian)(dian)降(jiang)(jiang)水(shui)(shui)(shui)設(she)(she)備(bei)(bei)帶(dai)70根井(jing)(jing)(jing)(jing)(jing)點(dian)(dian)(dian)(dian)降(jiang)(jiang)水(shui)(shui)(shui)管(guan)(guan)(guan)(guan)(guan)。 施工方(fang)案 井(jing)(jing)(jing)(jing)(jing)點(dian)(dian)(dian)(dian)的平(ping)面布置(zhi)：當基(ji)坑(keng)或(huo)溝槽寬(kuan)度小于(yu)6m，且降(jiang)(jiang)水(shui)(shui)(shui)深(shen)度不(bu)超過(guo)5m時，可用(yong)(yong)(yong)(yong)單(dan)排線狀井(jing)(jing)(jing)(jing)(jing)點(dian)(dian)(dian)(dian)，布置(zhi)在地(di)下(xia)水(shui)(shui)(shui)流的上游一(yi)側，兩端(duan)延(yan)伸(shen)長(chang)度以不(bu)小于(yu)槽寬(kuan)為(wei)宜(yi)。

嘉興井點降水，通泉公司承接各種水井工程 

如寬度大(da)(da)于6m或土(tu)質不良，則用雙排線狀井點(dian)。面積較(jiao)大(da)(da)的(de)基(ji)(ji)坑(keng)宜(yi)用環狀井點(dian)，有(you)時也可布置成U形，以利于挖土(tu)機(ji)和運(yun)土(tu)車(che)輛出(chu)入基(ji)(ji)坑(keng)。井點(dian)管(guan)距離基(ji)(ji)坑(keng)壁一(yi)般可取0.7~1.0m，以防局部(bu)漏氣(qi)。井點(dian)管(guan)間距一(yi)般為(wei)0.8m、1.2m、1.6m，由(you)計算或試驗確(que)定。井點(dian)管(guan)在總管(guan)四(si)角部(bu)位應適當(dang)加(jia)密。