擠(ji)(ji)密(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)基(ji)施(shi)(shi)工(gong)(gong)(gong)(gong)，灰土(tu)(tu)擠(ji)(ji)密(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)(gong)(gong)，環(huan)保擠(ji)(ji)密(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)(gong)(gong)，水泥土(tu)(tu)擠(ji)(ji)密(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)(gong)(gong)，素土(tu)(tu)擠(ji)(ji)密(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)(gong)(gong)，夯擴擠(ji)(ji)密(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)(gong)(gong)，沉管擠(ji)(ji)密(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)(gong)(gong)，強夯地基(ji)施(shi)(shi)工(gong)(gong)(gong)(gong)，碎石擠(ji)(ji)密(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)(gong)(gong)，擠(ji)(ji)密(mi)(mi)(mi)(mi)螺紋樁(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)(gong)(gong)，鉆孔灌注樁(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)(gong)(gong)，軟土(tu)(tu)地基(ji)施(shi)(shi)工(gong)(gong)(gong)(gong)，灰土(tu)(tu)樁(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)(gong)(gong)，我(wo)公(gong)司主營：擠(ji)(ji)密(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)(gong)(gong)，擠(ji)(ji)密(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)工(gong)(gong)(gong)(gong)程

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強夯施工措施有哪些？

強(qiang)夯(hang)法(fa)適宜(yi)的施(shi)工條件(jian)處理(li)深度(du)盡量(liang)不(bu)超過15米對飽和(he)軟土(tu)地、地表面應鋪一層(ceng)較厚的砂石(shi)、砂土(tu)等填(tian)料(liao)地下水(shui)位地表面以下2~3米為宜(yi)，也可采用降水(shui)強(qiang)夯(hang)施(shi)工現場離(li)既有(you)建筑(zhu)物有(you)足夠(gou)的安全距離(li)，否則不(bu)宜(yi)施(shi)工，夯(hang)擊對象盡量(liang)為粗顆粒土(tu)組成(cheng)。

1、要對全(quan)(quan)體施工人員進行安(an)(an)全(quan)(quan)教育，并(bing)嚴格(ge)執行安(an)(an)全(quan)(quan)操(cao)作(zuo)規(gui)程。

2、起重機的使(shi)用應遵守(shou)操作規(gui)程。為(wei)防止夯擊時擊上設備(bei)，起重機應有防護(hu)裝置和措施，并經常檢(jian)查和保養(yang)有關部(bu)件。

3、施工中應經常性對(dui)夯錘、脫鉤裝置、吊車(che)臂桿和起重索具等有(you)關鍵(jian)部位(wei)進行檢查(cha)。發現問(wen)題，要及時采取有(you)效措施。

4、強夯施工要(yao)實行統一指揮，各崗位分工明確，各詞其職(zhi)。

5、所(suo)有現場工作(zuo)人(ren)員要戴安全(quan)帽。以夯坑為(wei)中心，20m半徑范圍劃定安全(quan)線(xian)，夯擊過程中，除起(qi)重機司機外，灰土(tu)擠密樁(zhuang)施工工程，所(suo)有人(ren)員均(jun)退到安全(quan)線(xian)以外，防止飛(fei)石(shi)擊人(ren)。

擠(ji)(ji)密(mi)(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)基(ji)施(shi)(shi)工(gong)(gong)(gong)，灰(hui)土(tu)擠(ji)(ji)密(mi)(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)(gong)，灰(hui)土(tu)擠(ji)(ji)密(mi)(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)(gong)聯系方式，環保擠(ji)(ji)密(mi)(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)(gong)，水泥土(tu)擠(ji)(ji)密(mi)(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)(gong)，素土(tu)擠(ji)(ji)密(mi)(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)(gong)，夯擴擠(ji)(ji)密(mi)(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)(gong)，沉管擠(ji)(ji)密(mi)(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)(gong)，強夯地基(ji)施(shi)(shi)工(gong)(gong)(gong)，碎(sui)石擠(ji)(ji)密(mi)(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)(gong)，擠(ji)(ji)密(mi)(mi)(mi)(mi)(mi)螺紋樁(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)(gong)，鉆(zhan)孔灌注樁(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)(gong)，軟土(tu)地基(ji)施(shi)(shi)工(gong)(gong)(gong)，灰(hui)土(tu)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)(gong)，我公司(si)主(zhu)營(ying)：擠(ji)(ji)密(mi)(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)(gong)，擠(ji)(ji)密(mi)(mi)(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)工(gong)(gong)(gong)程

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旋(xuan)挖灌注樁澆(jiao)注水下混(hun)凝(ning)土(tu)要求

⑴對混凝(ning)土(tu)的技術要求

樁(zhuang)設計要求混凝土(tu)(tu)(tu)(tu)強度為C30，配(pei)比由商品混凝土(tu)(tu)(tu)(tu)供(gong)應商提供(gong)，粗(cu)骨料(liao)（碎石）粒(li)徑(jing)不得大于25mm，灰土(tu)(tu)(tu)(tu)擠(ji)密樁(zhuang)施(shi)工單位，坍(tan)落度180～220mm，采(cai)用普通硅酸(suan)鹽水泥，長治灰土(tu)(tu)(tu)(tu)擠(ji)密樁(zhuang)施(shi)工，可適當摻加(jia)減水劑(ji)，摻量(liang)根據試驗確定。配(pei)制的(de)混凝土(tu)(tu)(tu)(tu)應具有(you)良好的(de)工作性能。

⑵混(hun)凝土澆(jiao)注前由技術人員(yuan)檢查混(hun)凝土塌落度(du)并記錄。混(hun)凝土在運輸、澆(jiao)筑過程(cheng)中不能產生離析現象。

⑶導管內使用的隔水塞(sai)球膽大小要合(he)適，安裝要正，一般位于水面以(yi)上。灌(guan)注混(hun)(hun)凝土前孔口要蓋嚴，防止(zhi)混(hun)(hun)凝土落入孔中(zhong)污染泥漿。

⑷混(hun)凝(ning)(ning)(ning)土(tu)首(shou)(shou)灌量應灌至導(dao)管(guan)(guan)(guan)(guan)下(xia)口(kou)2m以上，保證首(shou)(shou)灌導(dao)管(guan)(guan)(guan)(guan)埋入(ru)混(hun)凝(ning)(ning)(ning)土(tu)為3m左右。混(hun)凝(ning)(ning)(ning)土(tu)澆(jiao)注(zhu)時(shi)，導(dao)管(guan)(guan)(guan)(guan)下(xia)口(kou)埋入(ru)混(hun)凝(ning)(ning)(ning)土(tu)的深度不小于2m，不大于6m，設專人(ren)及時(shi)測定，以便掌握導(dao)管(guan)(guan)(guan)(guan)提升高度。每次(ci)拆卸導(dao)管(guan)(guan)(guan)(guan)，必須(xu)經過(guo)測量計算導(dao)管(guan)(guan)(guan)(guan)埋深，然(ran)后確定卸管(guan)(guan)(guan)(guan)長度，使混(hun)凝(ning)(ning)(ning)土(tu)處于流動狀態(tai)，并作好澆(jiao)注(zhu)施工記錄。混(hun)凝(ning)(ning)(ning)土(tu)灌注(zhu)必須(xu)連續進行，中間不得間斷(duan)。拆除后的導(dao)管(guan)(guan)(guan)(guan)放入(ru)架(jia)子(zi)中并及時(shi)清洗(xi)干凈(jing)。

擠(ji)(ji)(ji)密(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)基施(shi)(shi)工(gong)(gong)，灰土(tu)擠(ji)(ji)(ji)密(mi)(mi)樁(zhuang)(zhuang)(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)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)，水(shui)泥(ni)土(tu)擠(ji)(ji)(ji)密(mi)(mi)樁(zhuang)(zhuang)(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)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)，夯擴擠(ji)(ji)(ji)密(mi)(mi)樁(zhuang)(zhuang)(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)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)，強夯地基施(shi)(shi)工(gong)(gong)，碎石擠(ji)(ji)(ji)密(mi)(mi)樁(zhuang)(zhuang)(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)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)，鉆孔灌注樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)，軟土(tu)地基施(shi)(shi)工(gong)(gong)，灰土(tu)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)，我公司主營：擠(ji)(ji)(ji)密(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)，擠(ji)(ji)(ji)密(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)工(gong)(gong)程(cheng)

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強(qiang)夯(hang)(hang)法的(de)(de)施工主(zhu)要包括施工機具(ju)和施工要點(dian)。隨(sui)著(zhu)強(qiang)夯(hang)(hang)技術的(de)(de)不斷發(fa)展(zhan)(zhan)，施工機具(ju)由初期的(de)(de)小型(xing)或自制設備逐步(bu)發(fa)展(zhan)(zhan)到大型(xing)的(de)(de)設備，而且(qie)施工方法也逐漸(jian)成熟，加(jia)固效果(guo)更加(jia)顯著(zhu)。

1. 施工機具

1) 履(lv)帶(dai)式吊車。一(yi)般采用(yong)15t—50t履(lv)帶(dai)式吊車。

2) 夯錘(chui)。夯錘(chui)質量可取(qu)(qu)10—40t，其底(di)面(mian)形式宜(yi)采用圓型(xing)。錘(chui)底(di)面(mian)積宜(yi)按土(tu)的(de)性(xing)質確定，錘(chui)底(di)靜接地壓(ya)力值可取(qu)(qu)25—40Kpa，對于細顆粒土(tu)錘(chui)底(di)靜壓(ya)力宜(yi)取(qu)(qu)較小(xiao)值。錘(chui)的(de)底(di)面(mian)應對稱設置若干個(ge)與其頂(ding)面(mian)貫通(tong)的(de)排氣孔(kong)，孔(kong)徑(jing)可取(qu)(qu)250—300mm。

3) 脫鉤裝置。采用的自動脫鉤裝置，規格(ge)以滿足起吊夯錘重量為宜。

4) 推(tui)土(tu)機。采用70—220型履帶式推(tui)土(tu)機。

2． 施工要點

1）強(qiang)夯(hang)施工前(qian)，應查(cha)明(ming)場地范(fan)圍內的地下構建(jian)物和各種(zhong)地下管線(xian)的位置(zhi)和標高等，并采取必要措(cuo)施，以(yi)免因強(qiang)夯(hang)施工而造成破壞。

2) 當強夯施工(gong)所產生的振(zhen)動，對(dui)鄰近(jin)建筑物或設備(bei)產生有害影響時，應采取(qu)防振(zhen)或隔振(zhen)措施。

3）平(ping)整施工場地，測量(liang)，記錄(lu)場地的高程。

4）起重機就位，對(dui)準夯點位置(zhi)，測量(liang)，記錄夯前(qian)錘頂高(gao)程。