擠(ji)(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)基施(shi)工(gong)(gong)(gong)(gong)(gong)，灰土(tu)(tu)(tu)擠(ji)(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)工(gong)(gong)(gong)(gong)(gong)，環保擠(ji)(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)工(gong)(gong)(gong)(gong)(gong)，水泥土(tu)(tu)(tu)擠(ji)(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)工(gong)(gong)(gong)(gong)(gong)，素土(tu)(tu)(tu)擠(ji)(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)工(gong)(gong)(gong)(gong)(gong)，夯擴擠(ji)(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)工(gong)(gong)(gong)(gong)(gong)，沉管擠(ji)(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)工(gong)(gong)(gong)(gong)(gong)，強夯地(di)基施(shi)工(gong)(gong)(gong)(gong)(gong)，碎石擠(ji)(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)工(gong)(gong)(gong)(gong)(gong)，擠(ji)(ji)密(mi)(mi)(mi)螺紋樁(zhuang)(zhuang)(zhuang)施(shi)工(gong)(gong)(gong)(gong)(gong)，鉆孔灌(guan)注樁(zhuang)(zhuang)(zhuang)施(shi)工(gong)(gong)(gong)(gong)(gong)，軟(ruan)土(tu)(tu)(tu)地(di)基施(shi)工(gong)(gong)(gong)(gong)(gong)，灰土(tu)(tu)(tu)樁(zhuang)(zhuang)(zhuang)施(shi)工(gong)(gong)(gong)(gong)(gong)，我公司(si)主營：擠(ji)(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)工(gong)(gong)(gong)(gong)(gong)，擠(ji)(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)工(gong)(gong)(gong)(gong)(gong)程

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深基坑發生流砂(sha)的補(bu)救措施

（1）清理并平整(zheng)施工場地；

（2）標出遍夯點位置，并測量(liang)場地高程；

（3）起(qi)重機就位，夯錘置(zhi)于夯點位置(zhi)；

（4）測量夯前錘頂(ding)高(gao)程；

（5）將夯(hang)錘起吊到預定高度(du)，開啟脫鉤(gou)裝置，待夯(hang)錘脫鉤(gou)自由下落后，放下吊鉤(gou)，測量(liang)錘頂高程(cheng)，若(ruo)發現(xian)因坑底傾(qing)斜而造(zao)成(cheng)夯(hang)錘歪斜時，應及時將坑底整平。

（6）重復步驟

（5）按設(she)計規定的(de)夯(hang)(hang)擊次數地面沉降處理(li)及控制(zhi)標準(zhun)，完成一(yi)個夯(hang)(hang)點的(de)夯(hang)(hang)擊；

（7）換夯點，重(zhong)復步驟（3）至（6），完成(cheng)遍全部(bu)夯點的夯擊；低溫抽真空(kong)設備

（8）用推土機將夯坑填平，并測量(liang)場地高程；

（9）在規(gui)定的(de)間(jian)隔(ge)時(shi)間(jian)后(hou)，按上述步驟逐(zhu)次(ci)完成全部(bu)夯擊(ji)遍數，高速擠密樁(zhuang)施工，后(hou)用(yong)低能量(liang)滿夯軟管水(shui)壓試驗(yan)機(ji)，將場地表(biao)層松土夯實，并測量(liang)夯后(hou)場地高程。

擠(ji)(ji)(ji)密(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)基施(shi)(shi)工(gong)(gong)，灰(hui)土(tu)擠(ji)(ji)(ji)密(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)，環保擠(ji)(ji)(ji)密(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)，水泥土(tu)擠(ji)(ji)(ji)密(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)，素土(tu)擠(ji)(ji)(ji)密(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)，夯(hang)擴擠(ji)(ji)(ji)密(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)，沉管擠(ji)(ji)(ji)密(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)，強夯(hang)地基施(shi)(shi)工(gong)(gong)，碎石擠(ji)(ji)(ji)密(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)，擠(ji)(ji)(ji)密(mi)(mi)螺紋樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)，鉆孔(kong)灌注樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)，軟土(tu)地基施(shi)(shi)工(gong)(gong)，灰(hui)土(tu)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)，我公(gong)司主營：擠(ji)(ji)(ji)密(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)，擠(ji)(ji)(ji)密(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)工(gong)(gong)程

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1、基(ji)坑寬(kuan)度小(xiao)于6米時可沿(yan)基(ji)坑長邊(bian)方向布(bu)置單側線(xian)性(xing)井點，大于6米則需(xu)兩則布(bu)置或環狀布(bu)置井點。單側線(xian)性(xing)井點要布(bu)置在地下水流靠上(shang)游的方向上(shang)。

2、降(jiang)水(shui)井運行一段時(shi)(shi)間后，地下(xia)水(shui)會(hui)形成穩定的降(jiang)水(shui)漏(lou)斗。降(jiang)水(shui)漏(lou)斗的坡度約(yue)為(wei)1：10，也就是說，當井點(dian)處地下(xia)水(shui)位下(xia)降(jiang)1米(mi)并長時(shi)(shi)間穩定時(shi)(shi)，離井點(dian)約(yue)10米(mi)范圍內(nei)的地下(xia)水(shui)位都將受到影響，而且，距離井點(dian)越遠降(jiang)水(shui)幅度越小。

3、一般(ban)要(yao)求地下(xia)水(shui)位降到(dao)基坑(keng)底(di)高程(cheng)以下(xia)0.5～1米，以保(bao)持基坑(keng)在開挖(wa)期間的(de)干燥狀態，同時也保(bao)障開挖(wa)過程(cheng)中基坑(keng)邊坡的(de)穩定性。

4、井點間距(ju)一般可選(xuan)擇0.8米(mi)(mi)、1.2米(mi)(mi)或1.6米(mi)(mi)，視地(di)下水位和(he)基坑深(shen)度而定。在特殊部位可以(yi)(yi)適當加密井點，以(yi)(yi)保證降(jiang)水效果(guo)。

5、沖孔(kong)深度應(ying)比(bi)濾(lv)管低0.5米(mi)(mi)左右，回(hui)填(tian)井管時用(yong)粗(cu)砂一(yi)直填(tian)到濾(lv)管以上至少(shao)1米(mi)(mi)，在離地(di)表至少(shao)0.5米(mi)(mi)的深度內用(yong)粘(zhan)土(tu)進(jin)行封(feng)口。

擠(ji)(ji)密樁(zhuang)(zhuang)基施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，灰(hui)土(tu)擠(ji)(ji)密樁(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，環保擠(ji)(ji)密樁(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，水泥土(tu)擠(ji)(ji)密樁(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，素土(tu)擠(ji)(ji)密樁(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，夯擴擠(ji)(ji)密樁(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，沉管擠(ji)(ji)密樁(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，強夯地基施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，碎(sui)石擠(ji)(ji)密樁(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，擠(ji)(ji)密樁(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)報價，擠(ji)(ji)密螺紋樁(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，鉆孔灌注樁(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，軟土(tu)地基施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，灰(hui)土(tu)樁(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，我公(gong)司主營：擠(ji)(ji)密樁(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，擠(ji)(ji)密樁(zhuang)(zhuang)工(gong)(gong)(gong)程(cheng)

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強(qiang)夯(hang)法的(de)施(shi)工(gong)主要包(bao)括施(shi)工(gong)機(ji)具和施(shi)工(gong)要點。隨著(zhu)強(qiang)夯(hang)技術的(de)不斷發展，施(shi)工(gong)機(ji)具由初期的(de)小型(xing)或自(zi)制設(she)備(bei)逐步發展到(dao)大型(xing)的(de)設(she)備(bei)，而且施(shi)工(gong)方法也逐漸成熟，加固效果(guo)更加顯著(zhu)。

1. 施工機具

1) 履帶式吊車。一般采用15t—50t履帶式吊車。

2) 夯錘(chui)。夯錘(chui)質量可(ke)取10—40t，其底(di)面形式宜采用圓型。錘(chui)底(di)面積宜按土(tu)的(de)性質確定，錘(chui)底(di)靜接地(di)壓力值(zhi)可(ke)取25—40Kpa，對于細顆粒(li)土(tu)錘(chui)底(di)靜壓力宜取較小值(zhi)。錘(chui)的(de)底(di)面應(ying)對稱設置若干(gan)個與其頂(ding)面貫通的(de)排氣孔，孔徑可(ke)取250—300mm。

3) 脫鉤(gou)裝(zhuang)置(zhi)(zhi)。采用的自動(dong)脫鉤(gou)裝(zhuang)置(zhi)(zhi)，規格以(yi)滿足起吊(diao)夯(hang)錘重量為宜。

4) 推土機(ji)。采用(yong)70—220型(xing)履帶式推土機(ji)。

2． 施工要點

  1）強夯施(shi)工(gong)前，應查明場地(di)范圍內的地(di)下構建物和各(ge)種地(di)下管(guan)線(xian)的位置和標高(gao)等，并(bing)采(cai)取(qu)必(bi)要措(cuo)施(shi)，以免因強夯施(shi)工(gong)而造成破壞。

  2) 當強夯施工所產(chan)生(sheng)的(de)振(zhen)(zhen)動(dong)，對鄰近(jin)建(jian)筑物或(huo)(huo)設備(bei)產(chan)生(sheng)有害(hai)影響時，應采(cai)取防(fang)振(zhen)(zhen)或(huo)(huo)隔振(zhen)(zhen)措施。

  3）平整(zheng)施(shi)工場(chang)地(di)，擠密(mi)樁施(shi)工設(she)備租賃(lin)，測量，記錄場(chang)地(di)的(de)高程。

  4）起重機就位(wei)，對準夯點位(wei)置，測量，記錄夯前錘(chui)頂高程(cheng)。