安全(quan)、文明(ming)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)措(cuo)施(shi)(shi)(shi)(shi)(shi)4.1機械作(zuo)(zuo)業要嚴格按(an)文明(ming)施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)的(de)有(you)關規定進(jin)(jin)行(xing)，嚴禁(jin)擾民影響市容的(de)現(xian)(xian)象出(chu)現(xian)(xian)。4.2嚴格遵守“建(jian)筑工(gong)(gong)地安全(quan)生(sheng)產六大紀律(lv)”，進(jin)(jin)入(ru)人(ren)(ren)員一(yi)律(lv)戴好(hao)安全(quan)帽。4.3車輛進(jin)(jin)出(chu)聽從現(xian)(xian)場指揮(hui)，粘土必須清潔后方可外運確保市容整(zheng)潔。4.4頂管施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)前(qian)(qian)，做(zuo)好(hao)各施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)工(gong)(gong)序(xu)的(de)危(wei)險源辨識工(gong)(gong)作(zuo)(zuo)，根據危(wei)險辨識結果制定相應(ying)的(de)安全(quan)防范措(cuo)施(shi)(shi)(shi)(shi)(shi)并(bing)向施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)人(ren)(ren)員進(jin)(jin)行(xing)安全(quan)交(jiao)底(di)。4.5建(jian)立健全(quan)安全(quan)生(sheng)產崗(gang)位責任制，在施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)之前(qian)(qian)要逐(zhu)級的(de)分(fen)部(bu)分(fen)項的(de)、有(you)針對性(xing)進(jin)(jin)行(xing)安全(quan)技(ji)(ji)術交(jiao)底(di)，施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)隊每天作(zuo)(zuo)業前(qian)(qian)都要進(jin)(jin)行(xing)班前(qian)(qian)教(jiao)育，并(bing)做(zuo)好(hao)記錄。4.6各種工(gong)(gong)序(xu)要按(an)照各項操作(zuo)(zuo)規程施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)，嚴禁(jin)違(wei)章指揮(hui)、違(wei)章操作(zuo)(zuo)。4.7編制施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)現(xian)(xian)場臨時用電專項方案，各種電器設備(bei)要做(zuo)到一(yi)機、一(yi)閘、一(yi)箱、一(yi)漏保。各分(fen)項工(gong)(gong)程施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)前(qian)(qian)，應(ying)由項目(mu)技(ji)(ji)術負責人(ren)(ren)向參(can)加該項目(mu)的(de)全(quan)體施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)人(ren)(ren)員進(jin)(jin)行(xing)技(ji)(ji)術交(jiao)底(di)。龍巖(yan)DN2200水泥頂管施(shi)(shi)(shi)(shi)(shi)工(gong)(gong)每米價(jia)格

模(mo)擬過(guo)程(cheng)（1）邊界(jie)條件和初(chu)始條件：三維數(shu)值(zhi)(zhi)模(mo)型的(de)(de)(de)前(qian)后左右以及(ji)底部邊界(jie)為(wei)法向約束限制位(wei)移，地(di)表(biao)(biao)為(wei)自(zi)(zi)(zi)由面。施(shi)(shi)工(gong)計(ji)算前(qian)，土(tu)體(ti)在(zai)(zai)(zai)自(zi)(zi)(zi)重(zhong)應(ying)(ying)力(li)的(de)(de)(de)作(zuo)(zuo)用(yong)下(xia)，達(da)到初(chu)始應(ying)(ying)力(li)平(ping)(ping)衡狀態(tai)(tai)(tai)(tai)。因為(wei)在(zai)(zai)(zai)施(shi)(shi)工(gong)前(qian)，土(tu)體(ti)經過(guo)長時(shi)(shi)間(jian)的(de)(de)(de)作(zuo)(zuo)用(yong)已經處于穩定狀態(tai)(tai)(tai)(tai)，不經過(guo)施(shi)(shi)工(gong)擾動不會(hui)發生地(di)表(biao)(biao)沉降(jiang)(jiang)。如(ru)圖3所示，在(zai)(zai)(zai)自(zi)(zi)(zi)重(zhong)應(ying)(ying)力(li)作(zuo)(zuo)用(yong)下(xia)土(tu)體(ti)沉降(jiang)(jiang)量(liang)自(zi)(zi)(zi)上而下(xia)逐漸增(zeng)大，地(di)表(biao)(biao)的(de)(de)(de)沉降(jiang)(jiang)量(liang)比(bi)較大可達(da)到72mm，在(zai)(zai)(zai)模(mo)量(liang)頂管施(shi)(shi)工(gong)前(qian)要將所有(you)的(de)(de)(de)位(wei)移沉降(jiang)(jiang)清零。開挖(wa)(wa)：在(zai)(zai)(zai)模(mo)擬中，管道(dao)沿著X軸(zhou)方向推進(jin)(jin)，模(mo)擬完全按照管長4m的(de)(de)(de)步長進(jin)(jin)行(xing)。每步開挖(wa)(wa)后，管道(dao)和土(tu)體(ti)之間(jian)都留有(you)間(jian)隙(xi)(xi)(xi)，間(jian)隙(xi)(xi)(xi)按照有(you)注(zhu)漿(jiang)(jiang)(jiang)進(jin)(jin)行(xing)數(shu)值(zhi)(zhi)模(mo)擬，分析其地(di)表(biao)(biao)沉降(jiang)(jiang)量(liang)。在(zai)(zai)(zai)有(you)注(zhu)漿(jiang)(jiang)(jiang)時(shi)(shi)，由于邊頂進(jin)(jin)邊注(zhu)漿(jiang)(jiang)(jiang)，因此(ci)開挖(wa)(wa)后應(ying)(ying)將開挖(wa)(wa)間(jian)隙(xi)(xi)(xi)立(li)刻按照觸變泥(ni)漿(jiang)(jiang)(jiang)的(de)(de)(de)力(li)學參(can)數(shu)回填，待全部管道(dao)頂進(jin)(jin)完畢(bi)后，再將觸變泥(ni)漿(jiang)(jiang)(jiang)的(de)(de)(de)力(li)學參(can)數(shu)換成凝(ning)固體(ti)力(li)學參(can)數(shu)進(jin)(jin)行(xing)計(ji)算，比(bi)較終使其達(da)到平(ping)(ping)衡狀態(tai)(tai)(tai)(tai)；在(zai)(zai)(zai)無注(zhu)漿(jiang)(jiang)(jiang)數(shu)值(zhi)(zhi)模(mo)擬計(ji)算時(shi)(shi)，管道(dao)和土(tu)體(ti)之間(jian)的(de)(de)(de)間(jian)隙(xi)(xi)(xi)按空模(mo)型計(ji)算，直(zhi)至達(da)到平(ping)(ping)衡狀態(tai)(tai)(tai)(tai)。集美區DN1200球墨管頂管施(shi)(shi)工(gong)報價(jia)做(zuo)好(hao)頂管工(gong)作(zuo)(zuo)坑周邊的(de)(de)(de)環境(jing)保護工(gong)作(zuo)(zuo)，搞好(hao)文(wen)明施(shi)(shi)工(gong)。

泥(ni)水推進(jin)工(gong)法有(you)如下(xia)(xia)特點：⑴通過刀(dao)盤(pan)(pan)以及頂(ding)速平衡(heng)(heng)正面(mian)土壓力，調節循環(huan)水壓力用(yong)以平衡(heng)(heng)地(di)(di)下(xia)(xia)水壓力；⑵采用(yong)流體(ti)輸送(song)切削入泥(ni)倉的(de)(de)土體(ti)，頂(ding)進(jin)過程中不間(jian)斷，施(shi)工(gong)速度快；⑶無需地(di)(di)基改良(liang)或(huo)降水處(chu)理，施(shi)工(gong)后地(di)(di)表(biao)沉降小(xiao)(xiao)。泥(ni)水式(shi)推進(jin)工(gong)法所采用(yong)的(de)(de)掘(jue)(jue)進(jin)機(ji)常用(yong)的(de)(de)有(you)刀(dao)盤(pan)(pan)可(ke)(ke)伸(shen)(shen)縮(suo)式(shi)泥(ni)水平衡(heng)(heng)掘(jue)(jue)進(jin)機(ji)和偏心破碎泥(ni)水平衡(heng)(heng)掘(jue)(jue)進(jin)機(ji)。刀(dao)盤(pan)(pan)可(ke)(ke)伸(shen)(shen)縮(suo)式(shi)泥(ni)水平衡(heng)(heng)掘(jue)(jue)進(jin)機(ji)如需穿越建筑(zhu)物(wu)、構造物(wu)、埋設物(wu)等對(dui)地(di)(di)面(mian)沉降要(yao)求(qiu)很小(xiao)(xiao)的(de)(de)情況下(xia)(xia)，可(ke)(ke)采用(yong)刀(dao)盤(pan)(pan)可(ke)(ke)伸(shen)(shen)縮(suo)式(shi)泥(ni)水平衡(heng)(heng)掘(jue)(jue)進(jin)機(ji)，此種機(ji)頭的(de)(de)刀(dao)盤(pan)(pan)是一(yi)個直徑比掘(jue)(jue)進(jin)機(ji)前殼(ke)體(ti)略小(xiao)(xiao)的(de)(de)具(ju)有(you)一(yi)定剛度的(de)(de)圓(yuan)盤(pan)(pan)。圓(yuan)盤(pan)(pan)中還嵌(qian)有(you)切削刀(dao)和刀(dao)架(jia)(jia)。刀(dao)盤(pan)(pan)和切削刀(dao)架(jia)(jia)之(zhi)間(jian)可(ke)(ke)以同步(bu)伸(shen)(shen)縮(suo)，也(ye)可(ke)(ke)以單獨伸(shen)(shen)縮(suo)。

由(you)于(yu)刀(dao)盤運(yun)動過程中，泥(ni)水(shui)(shui)倉和泥(ni)土(tu)倉中的(de)(de)間(jian)(jian)隙也不斷的(de)(de)由(you)比(bi)(bi)(bi)較(jiao)小變到比(bi)(bi)(bi)較(jiao)大(da)(da)這(zhe)樣循環變化(hua)著，因此，它(ta)除了(le)有(you)軋(ya)碎(sui)(sui)小塊石(shi)頭的(de)(de)功(gong)能(neng)(neng)以外還始(shi)終能(neng)(neng)保(bao)證進水(shui)(shui)泵的(de)(de)泥(ni)水(shui)(shui)能(neng)(neng)通(tong)過此間(jian)(jian)隙到達(da)泥(ni)土(tu)倉中，從(cong)而保(bao)證了(le)掘進機不僅(jin)在砂土(tu)中，即使在粘(zhan)土(tu)中也能(neng)(neng)正常工作(zuo)。一(yi)般情(qing)況下，刀(dao)盤每(mei)分鐘能(neng)(neng)旋(xuan)轉4-5轉，每(mei)當刀(dao)盤旋(xuan)轉一(yi)圈時(shi)，偏(pian)心的(de)(de)軋(ya)碎(sui)(sui)動作(zuo)達(da)20-23次。由(you)于(yu)此機型有(you)以上這(zhe)些特殊(shu)的(de)(de)構造，因此它(ta)的(de)(de)破碎(sui)(sui)能(neng)(neng)力是所(suo)有(you)具有(you)破碎(sui)(sui)功(gong)能(neng)(neng)的(de)(de)掘進機中比(bi)(bi)(bi)較(jiao)大(da)(da)的(de)(de)，破碎(sui)(sui)的(de)(de)比(bi)(bi)(bi)較(jiao)大(da)(da)粒(li)徑可(ke)達(da)掘進機直徑的(de)(de)40-45%之間(jian)(jian)，破碎(sui)(sui)的(de)(de)卵石(shi)強度(du)可(ke)達(da)200MPa。組織(zhi)工人(ren)學習公司的(de)(de)各項規章制(zhi)度(du)、質量(liang)安全管理條例(li)。

在(zai)頂(ding)(ding)管(guan)(guan)施工(gong)(gong)(gong)(gong)(gong)(gong)(gong)中比較(jiao)為(wei)流行的(de)(de)(de)有三種平(ping)衡理論：氣壓(ya)平(ping)衡、泥水(shui)平(ping)衡和(he)土壓(ya)平(ping)衡理論。頂(ding)(ding)管(guan)(guan)施工(gong)(gong)(gong)(gong)(gong)(gong)(gong)比較(jiao)突出的(de)(de)(de)特點(dian)就是(shi)適應(ying)性問(wen)題。針對不同的(de)(de)(de)地(di)(di)質(zhi)情況、施工(gong)(gong)(gong)(gong)(gong)(gong)(gong)條件和(he)設(she)計要(yao)求，選用(yong)與之適應(ying)的(de)(de)(de)頂(ding)(ding)管(guan)(guan)施工(gong)(gong)(gong)(gong)(gong)(gong)(gong)方(fang)式(shi)，如(ru)何正確地(di)(di)選擇頂(ding)(ding)管(guan)(guan)機和(he)配套輔助設(she)備(bei)，對于頂(ding)(ding)管(guan)(guan)施工(gong)(gong)(gong)(gong)(gong)(gong)(gong)來說將(jiang)是(shi)非常關鍵的(de)(de)(de)。經過多年的(de)(de)(de)發展，頂(ding)(ding)管(guan)(guan)技術在(zai)我國已(yi)得(de)到大(da)(da)量地(di)(di)實際工(gong)(gong)(gong)(gong)(gong)(gong)(gong)程(cheng)應(ying)用(yong)，且保持著(zhu)高速的(de)(de)(de)增長勢頭，無論在(zai)技術上(shang)、頂(ding)(ding)管(guan)(guan)設(she)備(bei)還是(shi)施工(gong)(gong)(gong)(gong)(gong)(gong)(gong)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)藝上(shang)取(qu)得(de)了(le)很大(da)(da)的(de)(de)(de)進步，在(zai)某些方(fang)面甚至(zhi)已(yi)達到了(le)很高的(de)(de)(de)水(shui)平(ping)。2001年上(shang)海隧道股份有限公司在(zai)江(jiang)蘇省常州完(wan)成(cheng)了(le)長2050m、直徑2m的(de)(de)(de)鋼筋(jin)水(shui)泥管(guan)(guan)頂(ding)(ding)管(guan)(guan)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)程(cheng)，是(shi)已(yi)完(wan)成(cheng)的(de)(de)(de)我國比較(jiao)長的(de)(de)(de)頂(ding)(ding)管(guan)(guan)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)程(cheng)。堅持上(shang)道工(gong)(gong)(gong)(gong)(gong)(gong)(gong)序(xu)的(de)(de)(de)施工(gong)(gong)(gong)(gong)(gong)(gong)(gong)質(zhi)量達到合格標準，并及時上(shang)報監理，監理認定工(gong)(gong)(gong)(gong)(gong)(gong)(gong)序(xu)質(zhi)量合格后，下道工(gong)(gong)(gong)(gong)(gong)(gong)(gong)序(xu)才能施工(gong)(gong)(gong)(gong)(gong)(gong)(gong)的(de)(de)(de)原則。南平(ping)DN3500非開挖頂(ding)(ding)管(guan)(guan)施工(gong)(gong)(gong)(gong)(gong)(gong)(gong)每(mei)米價(jia)格

場施工人員必(bi)須戴安全帽，并系(xi)好額帶，上下工作坑應(ying)走安全扶梯。龍巖(yan)DN2200水泥(ni)頂管施工每米價格(ge)

注漿(jiang)和(he)泥(ni)漿(jiang)的(de)處理在(zai)(zai)鉆(zhan)桿(gan)回(hui)(hui)拉(la)擴徑的(de)過程中，必須(xu)通過鉆(zhan)桿(gan)注入膨潤(run)土(tu)(tu)漿(jiang)，以減(jian)少摩擦，降(jiang)低回(hui)(hui)轉扭矩和(he)回(hui)(hui)拉(la)阻(zu)力，同時膨潤(run)土(tu)(tu)漿(jiang)還(huan)有固壁(bi)防止(zhi)孔(kong)洞塌(ta)土(tu)(tu)、冷卻鉆(zhan)頭(tou)的(de)作用。更(geng)重要的(de)是(shi)通過旋轉回(hui)(hui)擴頭(tou)切削下來(lai)的(de)泥(ni)土(tu)(tu)，會溶融(rong)在(zai)(zai)膨潤(run)土(tu)(tu)漿(jiang)里，形(xing)成(cheng)泥(ni)漿(jiang)，流到(dao)出(chu)口工(gong)(gong)作坑的(de)集漿(jiang)坑里。集漿(jiang)坑里放設泥(ni)漿(jiang)泵(beng)，把(ba)泥(ni)漿(jiang)抽到(dao)泥(ni)漿(jiang)池。3.8回(hui)(hui)拉(la)敷設管(guan)(guan)道(dao)擴孔(kong)成(cheng)功(gong)到(dao)600mm后，可以進(jin)行(xing)回(hui)(hui)來(lai)管(guan)(guan)道(dao)工(gong)(gong)序(xu)。在(zai)(zai)回(hui)(hui)拖前要進(jin)行(xing)管(guan)(guan)線連接的(de)工(gong)(gong)序(xu)，用電焊法將鋼管(guan)(guan)連接成(cheng)與成(cheng)孔(kong)長度相當的(de)管(guan)(guan)道(dao)。準備(bei)好后，將管(guan)(guan)道(dao)與擴孔(kong)器相連，回(hui)(hui)拉(la)將管(guan)(guan)道(dao)牽引進(jin)孔(kong)洞內。龍巖DN2200水(shui)泥(ni)頂管(guan)(guan)施工(gong)(gong)每米價格

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