擠密(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)基施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，灰土擠密(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，環保擠密(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，水泥土擠密(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，素土擠密(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，夯擴(kuo)擠密(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，沉(chen)管擠密(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，強夯地基施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，碎石擠密(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，擠密(mi)(mi)(mi)螺紋樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，鉆孔灌注樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，軟土地基施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，灰土樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，我公司主營：擠密(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，擠密(mi)(mi)(mi)樁(zhuang)(zhuang)(zhuang)工(gong)(gong)(gong)(gong)程

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超聲(sheng)成孔檢(jian)測原(yuan)理(li)及檢(jian)測方法

成孔(kong)(kong)(kong)質量(liang)檢測(ce)包(bao)括孔(kong)(kong)(kong)徑、孔(kong)(kong)(kong)深、垂直(zhi)度、成渣(zha)厚度等，利用(yong)超聲(sheng)成孔(kong)(kong)(kong)質量(liang)檢測(ce)儀(yi)進行灌注樁孔(kong)(kong)(kong)徑、孔(kong)(kong)(kong)深、孔(kong)(kong)(kong)壁垂直(zhi)度檢測(ce)。超聲(sheng)成孔(kong)(kong)(kong)質量(liang)檢測(ce)儀(yi)由主機、超聲(sheng)探頭、深度測(ce)量(liang)裝置和提升(sheng)機構組成，測(ce)量(liang)孔(kong)(kong)(kong)徑、孔(kong)(kong)(kong)深、垂直(zhi)度的(de)原理

檢測原理

利用(yong)超(chao)聲(sheng)(sheng)成孔(kong)(kong)質量檢測(ce)(ce)儀(yi)進行灌注(zhu)樁孔(kong)(kong)徑、垂直度(du)(du)檢測(ce)(ce)。超(chao)聲(sheng)(sheng)探頭在設(she)備(bei)的(de)控制下(xia)，由孔(kong)(kong)口勻速降(jiang)低，深度(du)(du)檢測(ce)(ce)設(she)備(bei)測(ce)(ce)取探頭放入的(de)深度(du)(du)并傳至(zhi)主機(ji)。因為(wei)泥(ni)漿聲(sheng)(sheng)阻抗(kang)低于土層和(he)巖石結構的(de)聲(sheng)(sheng)阻抗(kang)，超(chao)聲(sheng)(sheng)波基(ji)本(ben)由孔(kong)(kong)壁形成全反(fan)(fan)射，反(fan)(fan)射波通過(guo)泥(ni)漿傳遞(di)(di)后讓換能(neng)器采集，反(fan)(fan)射波抵達的(de)時(shi)間就是(shi)(shi)(shi)超(chao)聲(sheng)(sheng)波在孔(kong)(kong)洞泥(ni)漿內的(de)傳遞(di)(di)時(shi)間t，即聲(sheng)(sheng)時(shi)。檢測(ce)(ce)探頭上安(an)裝(zhuang)4組(zu)換能(neng)器，4組(zu)探頭呈正交十字檢測(ce)(ce)鉆孔(kong)(kong)兩(liang)(liang)個角度(du)(du)的(de)孔(kong)(kong)壁剖面(mian)。檢測(ce)(ce)探頭兩(liang)(liang)個角度(du)(du)相反(fan)(fan)的(de)換能(neng)器到孔(kong)(kong)壁的(de)間距是(shi)(shi)(shi)l1、l2，測(ce)(ce)得聲(sheng)(sheng)波在路徑l1、l2上的(de)往返傳播時(shi)間分別(bie)為(wei)t1、t2，假(jia)如泥(ni)漿的(de)聲(sheng)(sheng)波速度(du)(du)為(wei)c（c可(ke)通過(guo)實測(ce)(ce)得到那么有l1=ct1/2、l2=ct2/2，樁孔(kong)(kong)于該斷面(mian)檢測(ce)(ce)的(de)孔(kong)(kong)徑就是(shi)(shi)(shi)D=l1+l2+d，其中，d是(shi)(shi)(shi)兩(liang)(liang)角度(du)(du)相反(fan)(fan)換能(neng)器的(de)接(jie)收面(mian)路程。則基(ji)于所(suo)檢查的(de)樁孔(kong)(kong)壁剖面(mian)圖能(neng)了(le)解樁孔(kong)(kong)垂直性。

擠密(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)基(ji)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)，太原擠密(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)廠家，灰土(tu)擠密(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)，環保擠密(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)，水泥土(tu)擠密(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)，素(su)土(tu)擠密(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)，太原擠密(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)租賃(lin)價格，夯擴擠密(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)，沉管擠密(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)，強夯地(di)基(ji)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)，碎(sui)石擠密(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)，擠密(mi)(mi)螺紋(wen)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)，鉆孔(kong)灌注樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)，軟土(tu)地(di)基(ji)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)，灰土(tu)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)，我公司主營(ying)：擠密(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)，擠密(mi)(mi)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)工(gong)(gong)(gong)(gong)(gong)(gong)程

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灌注樁免樁間土開挖施工

施(shi)(shi)工(gong)(gong)方(fang)法：樁(zhuang)基施(shi)(shi)工(gong)(gong)前土方(fang)開(kai)(kai)挖至(zhi)墊(dian)(dian)(dian)層(ceng)底(di)標(biao)高(gao)施(shi)(shi)工(gong)(gong)混(hun)凝(ning)土墊(dian)(dian)(dian)層(ceng)。先(xian)施(shi)(shi)工(gong)(gong)墊(dian)(dian)(dian)層(ceng)后施(shi)(shi)工(gong)(gong)樁(zhuang)的方(fang)法（可(ke)有(you)效控制虛(xu)樁(zhuang)長度(du)、免樁(zhuang)間圖開(kai)(kai)挖）墊(dian)(dian)(dian)層(ceng)厚(hou)度(du)一(yi)般不小于200mm，墊(dian)(dian)(dian)層(ceng)頂(ding)(ding)(ding)標(biao)高(gao)比設計樁(zhuang)頂(ding)(ding)(ding)標(biao)高(gao)底(di)100mm。在施(shi)(shi)工(gong)(gong)完成的墊(dian)(dian)(dian)層(ceng)上逐根彈(dan)線(xian)(xian)定(ding)位(wei)工(gong)(gong)程樁(zhuang)，放線(xian)(xian)尺寸比樁(zhuang)設計尺寸大50mm。采用切割機、風鎬對放線(xian)(xian)內墊(dian)(dian)(dian)層(ceng)混(hun)凝(ning)土破除后，太原擠密樁(zhuang)施(shi)(shi)工(gong)(gong)，支設樁(zhuang)頂(ding)(ding)(ding)定(ding)型(xing)模(mo)(mo)板（比設計樁(zhuang)頂(ding)(ding)(ding)標(biao)高(gao)高(gao)150～200mm），澆筑樁(zhuang)基混(hun)凝(ning)土至(zhi)模(mo)(mo)板頂(ding)(ding)(ding)面，澆筑時，應在樁(zhuang)頂(ding)(ding)(ding)位(wei)置(zhi)加強振搗，消除頂(ding)(ding)(ding)部混(hun)凝(ning)土浮漿。拆除模(mo)(mo)板清理表面樁(zhuang)頂(ding)(ding)(ding)及混(hun)凝(ning)土墊(dian)(dian)(dian)層(ceng)表面，達到防水施(shi)(shi)工(gong)(gong)基層(ceng)要(yao)求。

控制(zhi)要點：墊(dian)層(ceng)厚度、樁頂標高(gao)。

質(zhi)量要求：樁(zhuang)頂標高允許偏差(cha)為+20mm，-30mm，樁(zhuang)位偏差(cha)為正負30mm。

擠(ji)密(mi)樁(zhuang)基(ji)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，灰土擠(ji)密(mi)樁(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，環保擠(ji)密(mi)樁(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，水(shui)泥土擠(ji)密(mi)樁(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，素土擠(ji)密(mi)樁(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，夯擴擠(ji)密(mi)樁(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，沉管擠(ji)密(mi)樁(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，強夯地基(ji)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，碎石擠(ji)密(mi)樁(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，擠(ji)密(mi)螺紋樁(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，鉆孔灌注樁(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，軟土地基(ji)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，灰土樁(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，我(wo)公(gong)司(si)主營：擠(ji)密(mi)樁(zhuang)施(shi)(shi)(shi)(shi)工(gong)(gong)(gong)，擠(ji)密(mi)樁(zhuang)工(gong)(gong)(gong)程

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強夯工(gong)程施工(gong)法在地基加固中的(de)運用(yong)！

強(qiang)(qiang)夯工(gong)(gong)(gong)程(cheng)施工(gong)(gong)(gong)法(fa)解決路基(ji)(ji)(ji)是籍重錘式從(cong)高空(kong)隨意落下來(lai)給路基(ji)(ji)(ji)土施加(jia)撞擊力和(he)(he)震動(dong)，進(jin)(jin)而(er)做到(dao)提升路基(ji)(ji)(ji)土的抗壓(ya)強(qiang)(qiang)度并減少其(qi)膨脹性(xing)(xing)，還能(neng)改(gai)進(jin)(jin)其(qi)抗震動(dong)汽化的功能(neng)和(he)(he)清除土的濕(shi)陷性(xing)(xing)。強(qiang)(qiang)夯法(fa)在(zai)進(jin)(jin)行時僅(jin)用(yong)以結構(gou)加(jia)固沙子和(he)(he)砂(sha)土路基(ji)(ji)(ji)。通過幾(ji)十年(nian)來(lai)的運用(yong)與(yu)發(fa)展趨勢，它已適用(yong)從(cong)砂(sha)礫到(dao)粘性(xing)(xing)土的各(ge)種路基(ji)(ji)(ji)土，這主要是由工(gong)(gong)(gong)程(cheng)施工(gong)(gong)(gong)方式 的完善(shan)和(he)(he)排水管道(dao)標準的改(gai)進(jin)(jin)。

強夯(hang)(hang)(hang)法(fa)又稱之為(wei)驅(qu)動力預壓(ya)法(fa)或驅(qu)動力夯(hang)(hang)(hang)實法(fa)。這類辦(ban)法(fa)是不(bu)斷將重(zhong)錘式(一(yi)般為(wei)10～40t)提及高空使(shi)其隨意落(luo)下(xia)來(一(yi)般落(luo)距(ju)為(wei)10～40m)夯(hang)(hang)(hang)擊路基，進(jin)而使(shi)路基的(de)(de)硬(ying)度提升、膨脹性(xing)獲得(de)減(jian)少(shao)的(de)(de)方式。強夯(hang)(hang)(hang)法(fa)因為(wei)具備結構加固效果非常的(de)(de)好、適用土的(de)(de)分類廣、機器設備簡易(yi)、工程施(shi)工便(bian)捷、節約人力、工期短、節省原(yuan)材(cai)料、工程施(shi)工文明行為(wei)和工程施(shi)工花費劣等優(you)勢，迅速就推(tui)廣到各地區。

強(qiang)夯工程施工法適用解(jie)(jie)決(jue)砂土(tu)(tu)(tu)(tu)、碎石土(tu)(tu)(tu)(tu)、砂土(tu)(tu)(tu)(tu)、粘(zhan)(zhan)性(xing)(xing)土(tu)(tu)(tu)(tu)、濕(shi)陷(xian)性(xing)(xing)黃(huang)土(tu)(tu)(tu)(tu)和(he)(he)素填土(tu)(tu)(tu)(tu)等(deng)(deng)路基(ji)(ji)，它不但(dan)能提升路基(ji)(ji)的抗(kang)(kang)壓(ya)強(qiang)度、減(jian)少其(qi)膨脹性(xing)(xing)、還能改(gai)進其(qi)抗(kang)(kang)震(zhen)動汽(qi)化的功能和(he)(he)清除(chu)土(tu)(tu)(tu)(tu)的濕(shi)陷(xian)性(xing)(xing)，因此(ci)還常見于解(jie)(jie)決(jue)可液化碎石土(tu)(tu)(tu)(tu)路基(ji)(ji)和(he)(he)濕(shi)陷(xian)性(xing)(xing)路基(ji)(ji)等(deng)(deng)。強(qiang)夯法針(zhen)對(dui)對(dui)比度較高的粘(zhan)(zhan)性(xing)(xing)土(tu)(tu)(tu)(tu)，一般來說解(jie)(jie)決(jue)作用不顯著，尤其(qi)是污泥和(he)(he)淤泥質(zhi)土(tu)(tu)(tu)(tu)地(di)資源基(ji)(ji)，解(jie)(jie)決(jue)實(shi)際(ji)效果更差。因而針(zhen)對(dui)污泥質(zhi)土(tu)(tu)(tu)(tu)地(di)資源基(ji)(ji)應慎(shen)重采(cai)用或(huo)采(cai)取別的方式。