擠(ji)(ji)密(mi)(mi)樁(zhuang)基(ji)施(shi)(shi)工(gong)(gong)(gong)，灰土擠(ji)(ji)密(mi)(mi)樁(zhuang)施(shi)(shi)工(gong)(gong)(gong)，環保擠(ji)(ji)密(mi)(mi)樁(zhuang)施(shi)(shi)工(gong)(gong)(gong)，水泥土擠(ji)(ji)密(mi)(mi)樁(zhuang)施(shi)(shi)工(gong)(gong)(gong)，素(su)土擠(ji)(ji)密(mi)(mi)樁(zhuang)施(shi)(shi)工(gong)(gong)(gong)，夯擴(kuo)擠(ji)(ji)密(mi)(mi)樁(zhuang)施(shi)(shi)工(gong)(gong)(gong)，沉管擠(ji)(ji)密(mi)(mi)樁(zhuang)施(shi)(shi)工(gong)(gong)(gong)，碎石擠(ji)(ji)密(mi)(mi)樁(zhuang)施(shi)(shi)工(gong)(gong)(gong)單位，強夯地(di)基(ji)施(shi)(shi)工(gong)(gong)(gong)，碎石擠(ji)(ji)密(mi)(mi)樁(zhuang)施(shi)(shi)工(gong)(gong)(gong)，擠(ji)(ji)密(mi)(mi)螺紋樁(zhuang)施(shi)(shi)工(gong)(gong)(gong)，鉆孔(kong)灌注(zhu)樁(zhuang)施(shi)(shi)工(gong)(gong)(gong)，軟土地(di)基(ji)施(shi)(shi)工(gong)(gong)(gong)，灰土樁(zhuang)施(shi)(shi)工(gong)(gong)(gong)，我公司主營：擠(ji)(ji)密(mi)(mi)樁(zhuang)施(shi)(shi)工(gong)(gong)(gong)，擠(ji)(ji)密(mi)(mi)樁(zhuang)工(gong)(gong)(gong)程

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強化基坑防護及模板支撐管理

基(ji)坑周邊必(bi)須進行有效防護，并(bing)設置(zhi)明(ming)顯的(de)(de)警示標志。同時(shi)要加強對(dui)基(ji)坑壁的(de)(de)支護，并(bing)設置(zhi)觀測點，隨時(shi)觀測邊坡(po)及(ji)毗(pi)臨建筑(zhu)物、構筑(zhu)物的(de)(de)變化，及(ji)時(shi)發(fa)現隱(yin)患并(bing)采取有效措(cuo)施。

建筑(zhu)施工(gong)(gong)(gong)模(mo)板工(gong)(gong)(gong)程必須按照經過審批合格(ge)的施工(gong)(gong)(gong)方(fang)案進(jin)行搭設，并嚴格(ge)執行檢(jian)查驗收制(zhi)度，確保(bao)不發生(sheng)坍塌。人工(gong)(gong)(gong)挖孔樁施工(gong)(gong)(gong)作業，鐵路碎石(shi)擠密樁施工(gong)(gong)(gong)，必須符合技術規范的安全要(yao)求(qiu)。

強化塔(ta)吊(diao)等大型機械設備管理

重點(dian)做(zuo)好設(she)備(bei)安(an)裝前的(de)備(bei)案、檢(jian)測(ce)、維修和保養，確保各(ge)種安(an)全裝置(zhi)(zhi)、限位裝置(zhi)(zhi)有效(xiao)可靠。要做(zuo)好設(she)備(bei)基礎的(de)檢(jian)查監(jian)控，提高設(she)備(bei)的(de)防凍、防風及防倒塌的(de)能力。

塔吊設備的(de)(de)拆(chai)裝工作(zuo)，必須是具(ju)有(you)相(xiang)應資(zi)質的(de)(de)單位(wei)完成，編制詳(xiang)細的(de)(de)拆(chai)裝方案，并派專人監控，嚴格執行驗收(shou)和(he)登記制度。

強化消防安全管理

重點(dian)做好(hao)作業區、生(sheng)活區及(ji)倉庫等重點(dian)部位的(de)(de)消防安全管理，做到提前防范、重點(dian)監(jian)控、及(ji)時排除火災隱患(huan)。要合理有效地(di)配置滅火器、消防桶等器材和設(she)施;要落實(shi)防火措施，實(shi)行嚴(yan)格(ge)的(de)(de)動火審批制度，并設(she)置專門動火監(jian)護(hu)人，實(shi)行現場監(jian)護(hu)。

在明(ming)火作業時，要避開物品和(he)裝置，操作完畢后要認真清理(li)現場，不留火災(zai)隱患。加(jia)強對職工的預(yu)防火災(zai)教育(yu)，采取(qu)有效措施嚴防職工宿舍(she)發生火災(zai)。

擠(ji)(ji)(ji)(ji)(ji)密樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)基施(shi)(shi)工(gong)(gong)，灰土(tu)擠(ji)(ji)(ji)(ji)(ji)密樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)，環保擠(ji)(ji)(ji)(ji)(ji)密樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)，水(shui)泥土(tu)擠(ji)(ji)(ji)(ji)(ji)密樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)，素土(tu)擠(ji)(ji)(ji)(ji)(ji)密樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)，夯擴擠(ji)(ji)(ji)(ji)(ji)密樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)，沉管擠(ji)(ji)(ji)(ji)(ji)密樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)，強(qiang)夯地(di)基施(shi)(shi)工(gong)(gong)，碎石擠(ji)(ji)(ji)(ji)(ji)密樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)，擠(ji)(ji)(ji)(ji)(ji)密螺(luo)紋樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)，鉆孔灌注樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)，軟土(tu)地(di)基施(shi)(shi)工(gong)(gong)，灰土(tu)樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)，我公司主營(ying)：擠(ji)(ji)(ji)(ji)(ji)密樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)工(gong)(gong)，擠(ji)(ji)(ji)(ji)(ji)密樁(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)工(gong)(gong)程

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地基處理記錄要求

基本要求和內容

（1）地基處理(li)方案應由勘察、設計單位(wei)提出書面處理(li)意見或下達(da)設計變更(geng)通知，施(shi)工(gong)單位(wei)才(cai)能進行下道工(gong)序的施(shi)工(gong)。

（2）地基(ji)處(chu)理記(ji)錄包括地基(ji)處(chu)理綜合(he)描述記(ji)錄、試樁試夯(hang)試驗記(ji)錄，地基(ji)處(chu)理施工(gong)過程(cheng)記(ji)錄，施工(gong)單(dan)位應(ying)(ying)根據確(que)認的(de)處(chu)理方案做好相應(ying)(ying)的(de)記(ji)錄。

（3）地基處(chu)(chu)(chu)理綜(zong)合(he)描(miao)述應對(dui)地基處(chu)(chu)(chu)理前狀(zhuang)態(tai)、處(chu)(chu)(chu)理方案、處(chu)(chu)(chu)理部位、處(chu)(chu)(chu)理過程、處(chu)(chu)(chu)理結果作一綜(zong)合(he)的描(miao)述，必(bi)要時(shi)附簡圖。

（4）換土(tu)墊層法施工記(ji)錄(lu)要求：

1）用換土(tu)墊層法做淺層地基處(chu)理時，其(qi)墊層材料應符(fu)合(he)設計(ji)或規(gui)范要求；

2）素土、灰土、砂墊層(ceng)在施(shi)工(gong)前應(ying)對填(tian)料進(jin)行擊實試驗，墊層(ceng)施(shi)工(gong)應(ying)根(gen)據不(bu)同的換填(tian)材料選擇(ze)施(shi)工(gong)機械、分(fen)層(ceng)厚度與(yu)分(fen)層(ceng)遍數。墊層(ceng)的檢驗必(bi)須分(fen)層(ceng)進(jin)行，可用貫入(ru)法(fa)或環刀法(fa)檢驗壓實系數；

3）重錘夯(hang)實(shi)(shi)地(di)基應(ying)作(zuo)試夯(hang)記(ji)錄，夯(hang)實(shi)(shi)過程(cheng)應(ying)填寫施工記(ji)錄。

擠(ji)(ji)(ji)密(mi)(mi)樁(zhuang)(zhuang)基(ji)施(shi)(shi)(shi)工(gong)(gong)(gong)，灰土(tu)擠(ji)(ji)(ji)密(mi)(mi)樁(zhuang)(zhuang)施(shi)(shi)(shi)工(gong)(gong)(gong)，環保(bao)擠(ji)(ji)(ji)密(mi)(mi)樁(zhuang)(zhuang)施(shi)(shi)(shi)工(gong)(gong)(gong)，水泥土(tu)擠(ji)(ji)(ji)密(mi)(mi)樁(zhuang)(zhuang)施(shi)(shi)(shi)工(gong)(gong)(gong)，素土(tu)擠(ji)(ji)(ji)密(mi)(mi)樁(zhuang)(zhuang)施(shi)(shi)(shi)工(gong)(gong)(gong)，夯擴擠(ji)(ji)(ji)密(mi)(mi)樁(zhuang)(zhuang)施(shi)(shi)(shi)工(gong)(gong)(gong)，沉管擠(ji)(ji)(ji)密(mi)(mi)樁(zhuang)(zhuang)施(shi)(shi)(shi)工(gong)(gong)(gong)，強夯地基(ji)施(shi)(shi)(shi)工(gong)(gong)(gong)，碎石擠(ji)(ji)(ji)密(mi)(mi)樁(zhuang)(zhuang)施(shi)(shi)(shi)工(gong)(gong)(gong)，擠(ji)(ji)(ji)密(mi)(mi)螺(luo)紋樁(zhuang)(zhuang)施(shi)(shi)(shi)工(gong)(gong)(gong)，鉆孔灌注樁(zhuang)(zhuang)施(shi)(shi)(shi)工(gong)(gong)(gong)，軟土(tu)地基(ji)施(shi)(shi)(shi)工(gong)(gong)(gong)，灰土(tu)樁(zhuang)(zhuang)施(shi)(shi)(shi)工(gong)(gong)(gong)，我公司主(zhu)營：擠(ji)(ji)(ji)密(mi)(mi)樁(zhuang)(zhuang)施(shi)(shi)(shi)工(gong)(gong)(gong)，擠(ji)(ji)(ji)密(mi)(mi)樁(zhuang)(zhuang)工(gong)(gong)(gong)程(cheng)

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為(wei)處理好孔壁坍塌、埋鉆的問(wen)題(ti)，河(he)津碎石擠密樁施工，要做到以下幾點：

做好泥漿制備工作。

土質松散、護筒(tong)(tong)周圍(wei)未(wei)用(yong)粘土緊密填(tian)封以及護筒(tong)(tong)內水(shui)位不高(gao)以及鉆(zhan)(zhan)進(jin)速(su)度過快、空(kong)鉆(zhan)(zhan)時(shi)(shi)間(jian)過長、成孔后待灌時(shi)(shi)間(jian)過長和灌注(zhu)時(shi)(shi)間(jian)過長都會會引起(qi)孔壁坍陷(xian)。因此，在松散易坍的土層中(zhong)，要適當埋深護筒(tong)(tong)，用(yong)粘土密實填(tian)封護筒(tong)(tong)四周，使用(yong)的泥(ni)漿，提高(gao)泥(ni)漿的比重和粘度，保持護筒(tong)(tong)內泥(ni)漿水(shui)位高(gao)于地下水(shui)位。

當(dang)遇到小溶洞(dong)或裂縫時，可能(neng)發生孔(kong)內泥(ni)漿(jiang)均勻緩慢下(xia)降的現象。這時，可采用在泥(ni)漿(jiang)中加適(shi)量水泥(ni)，增(zeng)大泥(ni)漿(jiang)比(bi)重及其(qi)護壁效果。

縮(suo)頸(jing)，即(ji)孔小于設計孔徑，是鉆孔灌注(zhu)樁常見的質量問題。

解(jie)決縮(suo)頸問題要(yao)針對其產生的原因，找到正(zheng)確的處(chu)理方法：

縮頸的(de)主要原因是由于樁周(zhou)土(tu)體在樁體澆(jiao)注過(guo)程中(zhong)產生的(de)膨脹造成。針對這(zhe)種情況(kuang)，應采用泥(ni)漿，降低失水量。

當軟土層受地(di)下水影響和周邊(bian)車(che)輛(liang)振動時(shi)，也容易發生縮頸。這時(shi)，可在軟塑(su)土地(di)層采用失水率小(xiao)的(de)泥漿護(hu)壁，降低失水量。

因鉆(zhan)錘磨損原因造成的(de)縮(suo)頸，應及(ji)時(shi)焊補鉆(zhan)錘，或在其外側焊接一(yi)定數量的(de)合(he)金刀片，在鉆(zhan)進或起鉆(zhan)時(shi)起到掃(sao)孔作(zuo)用。