近(jin)，许多(duo)客(ke)(ke)户我们(men)联(lian)系，并向我们(men)询问了他们(men)在(zai)使用(yong)桥(qiao)(qiao)(qiao)(qiao)(qiao)(qiao)梁(liang)(liang)(liang)(liang)(liang)维修(xiu)加(jia)(jia)固(gu)(gu)(gu)期间遇到的(de)(de)(de)(de)问题，希望我们(men)能(neng)提供帮助。，我将与您分(fen)享有(you)(you)(you)关桥(qiao)(qiao)(qiao)(qiao)(qiao)(qiao)梁(liang)(liang)(liang)(liang)(liang)维修(xiu)加(jia)(jia)固(gu)(gu)(gu)的(de)(de)(de)(de)知识，让(rang)我们(men)一(yi)起讨(tao)论一(yi)下，希望为我们(men)的(de)(de)(de)(de)客(ke)(ke)户和(he)(he)(he)(he)朋友带来启发(fa)(fa)和(he)(he)(he)(he)帮助，并让(rang)每个人对(dui)桥(qiao)(qiao)(qiao)(qiao)(qiao)(qiao)梁(liang)(liang)(liang)(liang)(liang)维修(xiu)加(jia)(jia)固(gu)(gu)(gu)都有(you)(you)(you)深(shen)刻的(de)(de)(de)(de)了解。1.制(zhi)(zhi)定积极(ji)合(he)理的(de)(de)(de)(de)桥(qiao)(qiao)(qiao)(qiao)(qiao)(qiao)梁(liang)(liang)(liang)(liang)(liang)维修(xiu)加(jia)(jia)固(gu)(gu)(gu)方(fang)案(an)。在(zai)每一(yi)个桥(qiao)(qiao)(qiao)(qiao)(qiao)(qiao)梁(liang)(liang)(liang)(liang)(liang)建(jian)好后，主管部(bu)门(men)都要(yao)(yao)制(zhi)(zhi)定积极(ji)台理的(de)(de)(de)(de)加(jia)(jia)固(gu)(gu)(gu)和(he)(he)(he)(he)养(yang)护方(fang)案(an)。要(yao)(yao)对(dui)道(dao)路桥(qiao)(qiao)(qiao)(qiao)(qiao)(qiao)梁(liang)(liang)(liang)(liang)(liang)的(de)(de)(de)(de)相关资料进行有(you)(you)(you)效妥(tuo)善的(de)(de)(de)(de)整理和(he)(he)(he)(he)保存,以便(bian)于(yu)养(yang)护和(he)(he)(he)(he)加(jia)(jia)固(gu)(gu)(gu)。2.补强(qiang)加(jia)(jia)固(gu)(gu)(gu)施(shi)(shi)I往(wang)往(wang)对(dui)相邻结构(gou)(gou)(gou)构(gou)(gou)(gou)件产生影响(xiang)。3.加(jia)(jia)强(qiang)桥(qiao)(qiao)(qiao)(qiao)(qiao)(qiao)梁(liang)(liang)(liang)(liang)(liang)所(suo)(suo)在(zai)地(di)区(qu)的(de)(de)(de)(de)地(di)质情(qing)况的(de)(de)(de)(de)勘察(cha)。道(dao)路桥(qiao)(qiao)(qiao)(qiao)(qiao)(qiao)梁(liang)(liang)(liang)(liang)(liang)的(de)(de)(de)(de)建(jian)设跟地(di)质条件是分(fen)不开的(de)(de)(de)(de)。所(suo)(suo)以只有(you)(you)(you)因地(di)制(zhi)(zhi)宜的(de)(de)(de)(de)设计道(dao)路桥(qiao)(qiao)(qiao)(qiao)(qiao)(qiao)梁(liang)(liang)(liang)(liang)(liang)，才能(neng)保证道(dao)路桥(qiao)(qiao)(qiao)(qiao)(qiao)(qiao)梁(liang)(liang)(liang)(liang)(liang)的(de)(de)(de)(de)质量(liang)。4.桥(qiao)(qiao)(qiao)(qiao)(qiao)(qiao)梁(liang)(liang)(liang)(liang)(liang)维修(xiu)加(jia)(jia)固(gu)(gu)(gu)改造的(de)(de)(de)(de)施(shi)(shi)工面(mian)狭窄、拥(yong)挤，常受(shou)原(yuan)有(you)(you)(you)结构(gou)(gou)(gou)的(de)(de)(de)(de)制(zhi)(zhi)约(yue)。5.完善桥(qiao)(qiao)(qiao)(qiao)(qiao)(qiao)梁(liang)(liang)(liang)(liang)(liang)的(de)(de)(de)(de)施(shi)(shi)工、加(jia)(jia)固(gu)(gu)(gu)、保养(yang)。作为桥(qiao)(qiao)(qiao)(qiao)(qiao)(qiao)梁(liang)(liang)(liang)(liang)(liang)建(jian)设中非常重要(yao)(yao)的(de)(de)(de)(de)一(yi)个阶段，在(zai)施(shi)(shi)I阶段应编制(zhi)(zhi)施(shi)(shi)I组织设计,对(dui)于(yu)保证施(shi)(shi)工的(de)(de)(de)(de)顺利进行和(he)(he)(he)(he)实现预期的(de)(de)(de)(de)目标(biao)具有(you)(you)(you)重要(yao)(yao)作用(yong)。应该十分(fen)严重的(de)(de)(de)(de)及时的(de)(de)(de)(de)检(jian)查、发(fa)(fa)现道(dao)路桥(qiao)(qiao)(qiao)(qiao)(qiao)(qiao)梁(liang)(liang)(liang)(liang)(liang)出现的(de)(de)(de)(de)异(yi)常和(he)(he)(he)(he)损(sun)坏(huai)现象,正(zheng)确地(di)鉴定其内(nei)部(bu)结构(gou)(gou)(gou)物的(de)(de)(de)(de)损(sun)坏(huai)程度,从(cong)而采用(yong)合(he)理、经(jing)济的(de)(de)(de)(de)维修(xiu)加(jia)(jia)固(gu)(gu)(gu)方(fang)法。6.加(jia)(jia)固(gu)(gu)(gu)改造方(fang)案(an)尽(jin)可能(neng)的(de)(de)(de)(de)考虑减少对(dui)原(yuan)结构(gou)(gou)(gou)的(de)(de)(de)(de)影响(xiang),对(dui)于(yu)大(da)多(duo)数(shu)桥(qiao)(qiao)(qiao)(qiao)(qiao)(qiao)梁(liang)(liang)(liang)(liang)(liang)来说(shuo)增加(jia)(jia)少得荷载为宜。桥(qiao)(qiao)(qiao)(qiao)(qiao)(qiao)梁(liang)(liang)(liang)(liang)(liang)分(fen)为上部(bu)结构(gou)(gou)(gou)（桥(qiao)(qiao)(qiao)(qiao)(qiao)(qiao)跨结构(gou)(gou)(gou)）和(he)(he)(he)(he)下部(bu)结构(gou)(gou)(gou)，下部(bu)结构(gou)(gou)(gou)包括(kuo)桥(qiao)(qiao)(qiao)(qiao)(qiao)(qiao)墩、桥(qiao)(qiao)(qiao)(qiao)(qiao)(qiao)台、基础(chu)。实心桥(qiao)(qiao)(qiao)(qiao)(qiao)(qiao)梁(liang)(liang)(liang)(liang)(liang)

桥(qiao)(qiao)(qiao)(qiao)梁(liang)(liang)(liang)(liang)(liang)墩(dun)(dun)柱(zhu)，是桥(qiao)(qiao)(qiao)(qiao)梁(liang)(liang)(liang)(liang)(liang)中(zhong)除两端与路(lu)(lu)堤衔接(jie)(jie)(jie)的(de)(de)(de)(de)桥(qiao)(qiao)(qiao)(qiao)台(tai)外其余的(de)(de)(de)(de)中(zhong)间(jian)的(de)(de)(de)(de)结构(gou)，用(yong)于(yu)对桥(qiao)(qiao)(qiao)(qiao)梁(liang)(liang)(liang)(liang)(liang)起到(dao)支撑作用(yong)。目前(qian)，城市桥(qiao)(qiao)(qiao)(qiao)梁(liang)(liang)(liang)(liang)(liang)的(de)(de)(de)(de)桥(qiao)(qiao)(qiao)(qiao)梁(liang)(liang)(liang)(liang)(liang)墩(dun)(dun)柱(zhu)通(tong)(tong)常采(cai)用(yong)现浇施(shi)工(gong)(gong)(gong)(gong)，施(shi)工(gong)(gong)(gong)(gong)时需要对路(lu)(lu)面进(jin)行(xing)封堵，加上现浇施(shi)工(gong)(gong)(gong)(gong)工(gong)(gong)(gong)(gong)期(qi)长，施(shi)工(gong)(gong)(gong)(gong)质(zhi)量不易控制(zhi)，且施(shi)工(gong)(gong)(gong)(gong)中(zhong)的(de)(de)(de)(de)支架、模板耗用(yong)量大(da)，施(shi)工(gong)(gong)(gong)(gong)费用(yong)高，并(bing)直接(jie)(jie)(jie)影响(xiang)施(shi)工(gong)(gong)(gong)(gong)点(dian)的(de)(de)(de)(de)道路(lu)(lu)通(tong)(tong)行(xing)能力，与城市建设(she)发展的(de)(de)(de)(de)要求格格不入。现有(you)技术(shu)中(zhong)，一般通(tong)(tong)过(guo)(guo)将(jiang)桥(qiao)(qiao)(qiao)(qiao)梁(liang)(liang)(liang)(liang)(liang)墩(dun)(dun)柱(zhu)采(cai)用(yong)预(yu)制(zhi)厂预(yu)制(zhi)，现场吊装就位后与基础(chu)直接(jie)(jie)(jie)连(lian)(lian)(lian)接(jie)(jie)(jie)的(de)(de)(de)(de)施(shi)工(gong)(gong)(gong)(gong)方式(shi)，则可(ke)平行(xing)施(shi)工(gong)(gong)(gong)(gong)，缩短施(shi)工(gong)(gong)(gong)(gong)工(gong)(gong)(gong)(gong)期(qi)，减小(xiao)对周(zhou)围交通(tong)(tong)、居(ju)民生活的(de)(de)(de)(de)影响(xiang)，但预(yu)制(zhi)桥(qiao)(qiao)(qiao)(qiao)梁(liang)(liang)(liang)(liang)(liang)墩(dun)(dun)柱(zhu)与基础(chu)的(de)(de)(de)(de)连(lian)(lian)(lian)接(jie)(jie)(jie)设(she)计是一大(da)技术(shu)难(nan)点(dian)，传统预(yu)制(zhi)桥(qiao)(qiao)(qiao)(qiao)梁(liang)(liang)(liang)(liang)(liang)墩(dun)(dun)柱(zhu)与承台(tai)的(de)(de)(de)(de)连(lian)(lian)(lian)接(jie)(jie)(jie)主要通(tong)(tong)过(guo)(guo)在承台(tai)顶部及预(yu)制(zhi)桥(qiao)(qiao)(qiao)(qiao)梁(liang)(liang)(liang)(liang)(liang)墩(dun)(dun)柱(zhu)底部预(yu)埋连(lian)(lian)(lian)接(jie)(jie)(jie)钢(gang)板，再将(jiang)上下连(lian)(lian)(lian)接(jie)(jie)(jie)钢(gang)板焊接(jie)(jie)(jie)锚固完成，这样的(de)(de)(de)(de)连(lian)(lian)(lian)接(jie)(jie)(jie)方式(shi)对结构(gou)的(de)(de)(de)(de)处理过(guo)(guo)于(yu)简单(dan)，存在桥(qiao)(qiao)(qiao)(qiao)梁(liang)(liang)(liang)(liang)(liang)墩(dun)(dun)柱(zhu)与承台(tai)的(de)(de)(de)(de)连(lian)(lian)(lian)接(jie)(jie)(jie)处的(de)(de)(de)(de)抗剪、抗震能力差的(de)(de)(de)(de)问题(ti)。无锡钢(gang)筋桥(qiao)(qiao)(qiao)(qiao)梁(liang)(liang)(liang)(liang)(liang)有(you)哪些桥(qiao)(qiao)(qiao)(qiao)梁(liang)(liang)(liang)(liang)(liang)结构(gou)应便于(yu)制(zhi)造和(he)安装，采(cai)用(yong)先(xian)进(jin)的(de)(de)(de)(de)工(gong)(gong)(gong)(gong)艺(yi)技术(shu)和(he)施(shi)工(gong)(gong)(gong)(gong)机械， 以利(li)于(yu)加快施(shi)工(gong)(gong)(gong)(gong)速(su)度，保(bao)证工(gong)(gong)(gong)(gong)程质(zhi)量和(he)施(shi)工(gong)(gong)(gong)(gong)安全。

保(bao)证(zheng)其(qi)缝(feng)(feng)(feng)(feng)隙的(de)(de)(de)(de)(de)(de)(de)中心线与伸(shen)缩(suo)缝(feng)(feng)(feng)(feng)中心线在(zai)(zai)同一条直(zhi)线上。（5）严(yan)(yan)格(ge)控制垂直(zhi)缝(feng)(feng)(feng)(feng)和顺缝(feng)(feng)(feng)(feng)的(de)(de)(de)(de)(de)(de)(de)高度，保(bao)证(zheng)其(qi)达到设(she)计要(yao)求之后能(neng)够横向(xiang)布(bu)置(zhi)钢(gang)(gang)筋，使用质量(liang)高的(de)(de)(de)(de)(de)(de)(de)钢(gang)(gang)筋在(zai)(zai)其(qi)两侧进(jin)行(xing)焊接(jie)，避免(mian)伸(shen)缩(suo)缝(feng)(feng)(feng)(feng)因(yin)(yin)为(wei)重(zhong)量(liang)的(de)(de)(de)(de)(de)(de)(de)问题而(er)造成挠度过大，同时应(ying)(ying)该(gai)(gai)使用锚(mao)固设(she)备在(zai)(zai)钢(gang)(gang)筋上进(jin)行(xing)焊接(jie)，以保(bao)证(zheng)其(qi)不会出现(xian)侧面滑动的(de)(de)(de)(de)(de)(de)(de)现(xian)象。（6）伸(shen)缩(suo)设(she)备在(zai)(zai)运(yun)输(shu)时应(ying)(ying)该(gai)(gai)控制长度，可(ke)以分(fen)段进(jin)行(xing)制作，施(shi)工(gong)(gong)现(xian)场(chang)应(ying)(ying)该(gai)(gai)拼接(jie)完成。出厂时，为(wei)了(le)方便运(yun)输(shu)，可(ke)以设(she)置(zhi)一些连接(jie)卡，但是隙缝(feng)(feng)(feng)(feng)因(yin)(yin)为(wei)位置(zhi)不确定，所以放(fang)置(zhi)的(de)(de)(de)(de)(de)(de)(de)时候应(ying)(ying)该(gai)(gai)尽量(liang)保(bao)持水(shui)平(ping)，同时不能(neng)交叉(cha)放(fang)置(zhi)，防(fang)止发生变形的(de)(de)(de)(de)(de)(de)(de)现(xian)象。安装(zhuang)时，应(ying)(ying)该(gai)(gai)由监理工(gong)(gong)程师认定后才能(neng)进(jin)行(xing)安装(zhuang)施(shi)工(gong)(gong)。如(ru)果设(she)计文件有明确的(de)(de)(de)(de)(de)(de)(de)规定，那么(me)需(xu)要(yao)严(yan)(yan)格(ge)执行(xing)设(she)计文件；（7）施(shi)工(gong)(gong)资源的(de)(de)(de)(de)(de)(de)(de)合理利用也是非常关键的(de)(de)(de)(de)(de)(de)(de)一个(ge)因(yin)(yin)素(su)，所以在(zai)(zai)施(shi)工(gong)(gong)中应(ying)(ying)该(gai)(gai)重(zhong)视人力资源的(de)(de)(de)(de)(de)(de)(de)合理配(pei)置(zhi)，保(bao)证(zheng)各个(ge)机械设(she)备都能(neng)充分(fen)发挥作用，还(hai)应(ying)(ying)该(gai)(gai)保(bao)证(zheng)所有的(de)(de)(de)(de)(de)(de)(de)施(shi)工(gong)(gong)设(she)备都稳定的(de)(de)(de)(de)(de)(de)(de)安装(zhuang)在(zai)(zai)施(shi)工(gong)(gong)现(xian)场(chang)，确保(bao)施(shi)工(gong)(gong)管理到位。

桥(qiao)梁(liang)(liang)桥(qiao)梁(liang)(liang)施(shi)工(gong)(gong)(gong)桥(qiao)梁(liang)(liang)施(shi)工(gong)(gong)(gong)工(gong)(gong)(gong)艺工(gong)(gong)(gong)程(cheng)桥(qiao)梁(liang)(liang)施(shi)工(gong)(gong)(gong)队混凝土灌(guan)注桩接桩立柱盖梁(liang)(liang)支(zhi)座垫(dian)石防撞(zhuang)护(hu)栏支(zhi)模板钢模混凝土垫(dian)层碎石垫(dian)层扩大基础重力(li)式桥(qiao)台(tai)基坑挖掘机(ji)施(shi)工(gong)(gong)(gong)装(zhuang)载机(ji)施(shi)工(gong)(gong)(gong)吊(diao)车施(shi)工(gong)(gong)(gong)起重作业(ye)工(gong)(gong)(gong)程(cheng)运输土石方施(shi)工(gong)(gong)(gong)便(bian)道施(shi)工(gong)(gong)(gong)施(shi)工(gong)(gong)(gong)安全规范三级教育钢筋(jin)加工(gong)(gong)(gong)受(shou)力(li)钢筋(jin)箍筋(jin)预(yu)埋钢筋(jin)预(yu)埋钢板预(yu)应力(li)施(shi)工(gong)(gong)(gong)箱梁(liang)(liang)预(yu)制板梁(liang)(liang)预(yu)制20m箱梁(liang)(liang)25m箱梁(liang)(liang)30m箱梁(liang)(liang)湿(shi)接缝端横梁(liang)(liang)中隔板施(shi)工(gong)(gong)(gong)洞桥(qiao)面(mian)铺装(zhuang)龙门吊(diao)钢绞线预(yu)应力(li)张拉(la)负弯矩(ju)张拉(la)压浆(jiang)测量(liang)放样高程(cheng)点(dian)坐标(biao)控(kong)制点(dian)gps放样桥(qiao)梁(liang)(liang)内业(ye)资料桥(qiao)梁(liang)(liang)建筑的发展方向具体(ti)体(ti)现在新材料、新理论、大跨径(jing)三方面(mian)。

桥(qiao)(qiao)(qiao)梁(liang)(liang)是公路建设的(de)(de)(de)重(zhong)(zhong)要(yao)主体，在施(shi)工过(guo)程(cheng)中比较重(zhong)(zhong)视施(shi)工质量，因(yin)而(er)，使养(yang)护单位(wei)认为它要(yao)比公路结石坚(jian)固，不会出现(xian)问题，所以(yi)就(jiu)形成了养(yang)护单位(wei)缺乏对桥(qiao)(qiao)(qiao)梁(liang)(liang)的(de)(de)(de)早期(qi)投入，对桥(qiao)(qiao)(qiao)梁(liang)(liang)进(jin)行维修、养(yang)护以(yi)及加固。另外(wai)，桥(qiao)(qiao)(qiao)梁(liang)(liang)在经(jing)过(guo)很长的(de)(de)(de)时间使用之(zhi)后(hou)，由于受(shou)气候(hou)、超荷载等因(yin)素的(de)(de)(de)影响(xiang)，使桥(qiao)(qiao)(qiao)梁(liang)(liang)加快了损坏(huai)的(de)(de)(de)速度，那么，此时如(ru)果对桥(qiao)(qiao)(qiao)梁(liang)(liang)不进(jin)行及时的(de)(de)(de)维修与加固，桥(qiao)(qiao)(qiao)梁(liang)(liang)将(jiang)会减少使用寿命，确保(bao)过(guo)往行车的(de)(de)(de)安全，使桥(qiao)(qiao)(qiao)梁(liang)(liang)处于一个很好的(de)(de)(de)使用状态，具有十(shi)分重(zhong)(zhong)要(yao)的(de)(de)(de)意(yi)义。桥(qiao)(qiao)(qiao)面(mian)系是指(zhi)桥(qiao)(qiao)(qiao)梁(liang)(liang)上(shang)部构(gou)(gou)造承(cheng)重(zhong)(zhong)构(gou)(gou)件以(yi)外(wai)的(de)(de)(de)桥(qiao)(qiao)(qiao)面(mian)部分。泰州混(hun)凝土桥(qiao)(qiao)(qiao)梁(liang)(liang)

按(an)桥(qiao)(qiao)(qiao)梁全长和跨径不同，分为特大桥(qiao)(qiao)(qiao)、大桥(qiao)(qiao)(qiao)、中桥(qiao)(qiao)(qiao)和小桥(qiao)(qiao)(qiao)。实心(xin)桥(qiao)(qiao)(qiao)梁

1.适用于(yu)：能在土质很(hen)差，地下(xia)水位(wei)很(hen)高时(shi)施(shi)(shi)(shi)工。2.施(shi)(shi)(shi)工方(fang)法(fa)(fa)(fa)：锤击沉(chen)(chen)(chen)入钢(gang)管(guan)(guan)(guan)(guan)(guan)法(fa)(fa)(fa)振(zhen)动沉(chen)(chen)(chen)入钢(gang)管(guan)(guan)(guan)(guan)(guan)法(fa)(fa)(fa)3.工艺(yi)顺序：桩(zhuang)靴、钢(gang)管(guan)(guan)(guan)(guan)(guan)就(jiu)位(wei)→沉(chen)(chen)(chen)管(guan)(guan)(guan)(guan)(guan)→放钢(gang)筋笼(long)→浇(jiao)(jiao)砼(tong)、提管(guan)(guan)(guan)(guan)(guan)。锤击、振(zhen)动沉(chen)(chen)(chen)管(guan)(guan)(guan)(guan)(guan)施(shi)(shi)(shi)工方(fang)法(fa)(fa)(fa)单打(da)(da)(da)法(fa)(fa)(fa)——复打(da)(da)(da)法(fa)(fa)(fa)——单打(da)(da)(da)时(shi)不(bu)放钢(gang)筋笼(long)，砼(tong)初凝前原位(wei)打(da)(da)(da)入、插(cha)筋灌注(zhu)。反(fan)插(cha)法(fa)(fa)(fa)——边(bian)振(zhen)边(bian)拔(ba)(ba)，每次拔(ba)(ba)管(guan)(guan)(guan)(guan)(guan)套管(guan)(guan)(guan)(guan)(guan)成孔灌注(zhu)桩(zhuang)常遇问题和(he)处理方(fang)法(fa)(fa)(fa)断桩(zhuang)原因：桩(zhuang)距过小(xiao)，桩(zhuang)身(shen)砼(tong)强度(du)(du)低，邻(lin)桩(zhuang)沉(chen)(chen)(chen)管(guan)(guan)(guan)(guan)(guan)时(shi)挤(ji)土使桩(zhuang)身(shen)断裂。措(cuo)施(shi)(shi)(shi)：桩(zhuang)间距≮；跳打(da)(da)(da)法(fa)(fa)(fa)；合理打(da)(da)(da)桩(zhuang)顺序。缩颈桩(zhuang)原因：邻(lin)桩(zhuang)的挤(ji)土影响；拔(ba)(ba)管(guan)(guan)(guan)(guan)(guan)速度(du)(du)过快(kuai)。措(cuo)施(shi)(shi)(shi)：慢拔(ba)(ba)密振(zhen)，反(fan)插(cha)法(fa)(fa)(fa)，复打(da)(da)(da)法(fa)(fa)(fa)。吊脚(jiao)桩(zhuang)原因：预制桩(zhuang)尖(jian)未(wei)及时(shi)脱出(chu)；活瓣桩(zhuang)尖(jian)未(wei)及时(shi)张(zhang)开。措(cuo)施(shi)(shi)(shi)：将桩(zhuang)管(guan)(guan)(guan)(guan)(guan)拔(ba)(ba)出(chu)，填砂后重打(da)(da)(da)。桩(zhuang)尖(jian)进(jin)(jin)水进(jin)(jin)泥(ni)沙原因：活瓣桩(zhuang)尖(jian)有空隙；砼(tong)桩(zhuang)尖(jian)与(yu)桩(zhuang)管(guan)(guan)(guan)(guan)(guan)接触不(bu)严(yan)措(cuo)施(shi)(shi)(shi)：修(xiu)复或(huo)更(geng)换活瓣桩(zhuang)尖(jian)，桩(zhuang)尖(jian)已(yi)经进(jin)(jin)水进(jin)(jin)泥(ni)应填砂重打(da)(da)(da)。人(ren)工挖孔灌注(zhu)桩(zhuang)直径(jing)＞，长(zhang)度(du)(du)＜20m1.设(she)备风(feng)镐(hao)、八字护壁(bi)；钻扩(kuo)机(ji)2.要求防塌壁(bi)；需降水、通风(feng)、通讯、照明(ming)2、施(shi)(shi)(shi)工工艺(yi)（1）放线、定桩(zhuang)位(wei)（2）分段开挖（3）绑(bang)扎护壁(bi)钢(gang)筋（4）支设(she)护壁(bi)模(mo)板（5）放置操(cao)作平台（6）浇(jiao)(jiao)护壁(bi)砼(tong)（7）拆模(mo)往(wang)下(xia)施(shi)(shi)(shi)工（8）排(pai)除孔底积(ji)水（9）放钢(gang)筋笼(long)，浇(jiao)(jiao)砼(tong)大连(lian)某一小(xiao)区高层住(zhu)宅，共18层，建(jian)筑总(zong)高度(du)(du)，为框架剪力墙体系。实(shi)心桥梁

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