擠(ji)密(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)基施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)，蓄水池碎(sui)(sui)石擠(ji)密(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)，灰土(tu)(tu)擠(ji)密(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)，環(huan)保擠(ji)密(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)，水泥(ni)土(tu)(tu)擠(ji)密(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)，素土(tu)(tu)擠(ji)密(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)，夯擴擠(ji)密(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)，沉管擠(ji)密(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)，強夯地基施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)，碎(sui)(sui)石擠(ji)密(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)，擠(ji)密(mi)(mi)(mi)(mi)螺紋樁(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)，鉆孔灌注樁(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)，軟土(tu)(tu)地基施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)，灰土(tu)(tu)樁(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)，我(wo)公司(si)主營：擠(ji)密(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)，擠(ji)密(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)工(gong)(gong)程(cheng)

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強化高空作業(ye)人員管理

施工現場(chang)臨時洞口及周邊要(yao)嚴格按照相關規定(ding)，使(shi)用(yong)鋼管、鋼筋(jin)等金屬(shu)材(cai)料架設安全防(fang)護欄(lan)桿(gan)，并使(shi)用(yong)合格的(de)安全網進行全封閉，同時要(yao)在防(fang)護欄(lan)桿(gan)周邊設置醒目的(de)預防(fang)高空墜落的(de)安全警示(shi)牌。

登高作業人員必(bi)須配戴防滑鞋、防護手(shou)套等防滑、防凍裝備，并(bing)按要求帶好安(an)全帽、系好安(an)全帶。

強化施工用電管理

要(yao)(yao)加強施工現場臨時用(yong)電(dian)(dian)管理，切實做好臨時施工用(yong)電(dian)(dian)和生活用(yong)電(dian)(dian)的安全防護。對現場的配(pei)電(dian)(dian)室、配(pei)電(dian)(dian)箱(xiang)及開(kai)關箱(xiang)進行的安全檢查(cha)，對不符合“三級配(pei)電(dian)(dian)兩級保護和一(yi)機一(yi)閘一(yi)漏(lou)”用(yong)電(dian)(dian)規范的要(yao)(yao)及時整改，對不符合安全要(yao)(yao)求電(dian)(dian)線線路要(yao)(yao)立(li)即更換。要(yao)(yao)認真(zhen)檢查(cha)維(wei)修漏(lou)電(dian)(dian)保護開(kai)關，確(que)保動作(zuo)靈(ling)敏可靠。

強化職工住宿安(an)全管(guan)理(li)

要(yao)加(jia)強對(dui)(dui)工人(ren)宿(su)舍(she)安全及穩固性(xing)的(de)(de)監控(kong)，尤其是要(yao)重視(shi)暴雪和連(lian)續陰(yin)雨(yu)天氣后對(dui)(dui)宿(su)舍(she)的(de)(de)監控(kong)，及時做好宿(su)舍(she)積(ji)雪的(de)(de)清掃及四周積(ji)水的(de)(de)疏通，發(fa)現異常(chang)情況應立即將宿(su)舍(she)內(nei)的(de)(de)人(ren)員撤(che)離至安全地點，并妥善安置。同時，還應加(jia)強對(dui)(dui)宿(su)舍(she)生活用(yong)電的(de)(de)管理，嚴(yan)禁使用(yong)各類大功率(lv)電器和取(qu)(qu)暖(nuan)設備，嚴(yan)禁在宿(su)舍(she)內(nei)設置伙房和煤爐(lu)取(qu)(qu)暖(nuan)，碎石(shi)擠密樁施工隊，嚴(yan)防煤氣。

強化(hua)事故應急預(yu)案(an)管理(li)

要完(wan)善現場事(shi)故(gu)應急預案制度，建立(li)冬季施工(gong)安全(quan)生(sheng)產(chan)值班制度，落實搶險救(jiu)災人員、機械和(he)物資，一(yi)旦發生(sheng)事(shi)故(gu)時，能夠確保(bao)、有序地做好緊急搶險工(gong)作，大限度地減輕(qing)人員傷亡和(he)經(jing)濟損失。

擠(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)基施(shi)(shi)工(gong)(gong)，灰(hui)土擠(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)，環保擠(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)，水(shui)泥土擠(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)，素(su)土擠(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)，夯(hang)擴擠(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)，沉管擠(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)，強夯(hang)地(di)基施(shi)(shi)工(gong)(gong)，碎(sui)石擠(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)，擠(ji)密(mi)(mi)(mi)螺紋樁(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)，鉆孔灌注樁(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)，軟(ruan)土地(di)基施(shi)(shi)工(gong)(gong)，灰(hui)土樁(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)，我公司主(zhu)營：擠(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)，擠(ji)密(mi)(mi)(mi)樁(zhuang)(zhuang)工(gong)(gong)程

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1.強夯(hang)(hang)置(zhi)換(huan)地(di)基的(de)(de)適用(yong)性和(he)處理效果要(yao)通過現場(chang)試(shi)(shi)(shi)驗(yan)確定。在進行強夯(hang)(hang)置(zhi)換(huan)施(shi)工(gong)(gong)前(qian)，應在施(shi)工(gong)(gong)現場(chang)有代表性的(de)(de)場(chang)地(di)選擇一個(ge)或幾個(ge)試(shi)(shi)(shi)驗(yan)區進行試(shi)(shi)(shi)夯(hang)(hang)或試(shi)(shi)(shi)驗(yan)性施(shi)工(gong)(gong)。每(mei)個(ge)實驗(yan)區的(de)(de)面積不應小于20m×20m。

2.強夯(hang)地基用(yong)夯(hang)錘的(de)質量(liang)應(ying)為10-60t，其底(di)部(bu)和形(xing)式應(ying)為網(wang)狀形(xing)，夯(hang)錘底(di)部(bu)的(de)面積應(ying)根(gen)據土壤的(de)性質確定，夯(hang)錘底(di)部(bu)的(de)靜態接地壓力應(ying)為25-80kPa。敲擊(ji)能量(liang)高時(shi)點擊(ji)高值(zhi)(zhi)，夯(hang)擊(ji)能量(liang)低時(shi)點擊(ji)低值(zhi)(zhi)，細粒土使(shi)用(yong)低值(zhi)(zhi)。錘頭底(di)面應(ying)對稱設置若干個從上至(zhi)下貫通的(de)排氣孔(kong)，孔(kong)徑為300-400 mm。

3.基(ji)礎(chu)夯實應(ying)(ying)采用帶(dai)自動脫鉤裝(zhuang)置的履帶(dai)吊，夯錘質量不應(ying)(ying)超(chao)過(guo)起(qi)重機械的額定起(qi)重質量。履帶(dai)吊應(ying)(ying)在吊臂(bei)末端(duan)設置輔助龍門架或采取其他安全措施，防止起(qi)落錘在起(qi)升落錘時(shi)傾覆。

4.地(di)(di)質(zhi)中常見的(de)(de)問(wen)題(ti)是軟土，處理軟土常用的(de)(de)方法是強(qiang)(qiang)(qiang)夯。強(qiang)(qiang)(qiang)夯置換法對(dui)于適(shi)合(he)強(qiang)(qiang)(qiang)夯的(de)(de)環境稍微寬松一點(dian)，適(shi)合(he)高飽和度的(de)(de)淤(yu)泥，鐵路碎石擠密樁施工，對(dui)地(di)(di)基(ji)的(de)(de)變形(xing)控制(zhi)不(bu)會太(tai)嚴(yan)格。在設計(ji)之(zhi)前(qian)，不(bu)能省略現場實驗，這是為了對(dui)其性能有一個大致的(de)(de)把握。

擠(ji)(ji)(ji)(ji)(ji)密(mi)樁(zhuang)基施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)，灰土(tu)擠(ji)(ji)(ji)(ji)(ji)密(mi)樁(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)，環保(bao)擠(ji)(ji)(ji)(ji)(ji)密(mi)樁(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)，水泥(ni)土(tu)擠(ji)(ji)(ji)(ji)(ji)密(mi)樁(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)，素(su)土(tu)擠(ji)(ji)(ji)(ji)(ji)密(mi)樁(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)，夯擴(kuo)擠(ji)(ji)(ji)(ji)(ji)密(mi)樁(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)，沉管擠(ji)(ji)(ji)(ji)(ji)密(mi)樁(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)，強(qiang)夯地(di)基施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)，碎石擠(ji)(ji)(ji)(ji)(ji)密(mi)樁(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)，擠(ji)(ji)(ji)(ji)(ji)密(mi)螺紋(wen)樁(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)，鉆(zhan)孔灌注樁(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)，軟土(tu)地(di)基施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)，灰土(tu)樁(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)，我公司(si)主營：擠(ji)(ji)(ji)(ji)(ji)密(mi)樁(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)，擠(ji)(ji)(ji)(ji)(ji)密(mi)樁(zhuang)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)程(cheng)

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素土擠密樁施工工藝

1、定位放線：

① 坐標投測

依據(ju)建設單位提供的坐標點(dian)用(yong)全(quan)站儀(yi)或(huo)GPS進行工程定(ding)位，在基(ji)坑上(shang)邊(bian)選擇可(ke)保(bao)留位置埋設、固定(ding)少4個(ge)控制點(dian)，東西、南北方向各兩個(ge)點(dian)，并(bing)在基(ji)坑底部施放出樓的四條周邊(bian)軸線，打入(ru)木樁并(bing)釘(ding)小鐵釘(ding)，地面以(yi)上(shang)外漏30～50cm。

② 高程投測

依據建設單位提供的(de)(de)高程控(kong)制(zhi)點用水準儀在基坑周(zhou)邊制(zhi)定(ding)出(chu)長期保留的(de)(de)樓(lou)的(de)(de)±0.000，依此在樓(lou)基坑四周(zhou)坑壁上釘鋼筋頭(tou)，做出(chu)基坑高程控(kong)制(zhi)點。

③ 樁位放線

依據基(ji)坑底(di)部四條邊(bian)軸線按照圖紙(zhi)設計樁間距、排距定出樁位，在樁心釘(ding)入鐵(tie)釬(han)，并做白灰明示。

2、擠密樁成孔

成孔施(shi)工(gong)前，應先制(zhi)定(ding)出(chu)成孔路線圖，并(bing)對所有樁進(jin)行編號。

依(yi)據(ju)圖紙設計選用(yong)成孔機械進行施工，并保證成孔桿豎直，對準樁(zhuang)心，在成孔桿頂(ding)端位置用(yong)紅油漆(qi)畫出設計樁(zhuang)深(shen)，侯馬(ma)碎石擠密樁(zhuang)施工，以控制(zhi)成孔深(shen)度滿足設計要求(qiu)。

成(cheng)孔過程(cheng)，采用由外(wai)向內，隔排跳(tiao)打(da)進(jin)行。