堆积(ji)(ji)(ji)体锚索(suo)(suo)钻(zuan)孔跟(gen)管(guan)钻(zuan)进(jin)工(gong)(gong)(gong)艺技术的(de)应(ying)用楼日新(xin)(成(cheng)(cheng)(cheng)(cheng)都(dou)理工(gong)(gong)(gong)大(da)(da)学(xue),四川(chuan)(chuan)成(cheng)(cheng)(cheng)(cheng)都(dou)610059)关(guan)键词(ci):滑(hua)坡(po)治理;冲击跟(gen)管(guan)钻(zuan)进(jin);堆积(ji)(ji)(ji)体;锚索(suo)(suo);抗滑(hua)桩;川(chuan)(chuan)藏(zang)公(gong)(gong)路(lu)(lu)(lu)(lu)工(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)摘要:川(chuan)(chuan)藏(zang)公(gong)(gong)路(lu)(lu)(lu)(lu)二郎(lang)山隧(sui)道是(shi)(shi)国家“九五”重点(dian)建(jian)设工(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)。长期以来龙胆(dan)溪(xi)(xi)滑(hua)坡(po)影响川(chuan)(chuan)藏(zang)公(gong)(gong)路(lu)(lu)(lu)(lu)这一(yi)交通大(da)(da)动脉(mai),由(you)于紧邻公(gong)(gong)路(lu)(lu)(lu)(lu)的(de)滑(hua)坡(po)体规模(mo)大(da)(da),滑(hua)面(mian)(mian)深、稳(wen)定性差,设计采用了较(jiao)长的(de)堆积(ji)(ji)(ji)体锚索(suo)(suo)(76m)和(he)较(jiao)深的(de)堆积(ji)(ji)(ji)体抗滑(hua)桩(65m),而(er)在国内外还没有类似工(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)的(de)成(cheng)(cheng)(cheng)(cheng)功经(jing)验,特(te)别是(shi)(shi)在松散堆积(ji)(ji)(ji)体中(zhong)进(jin)行(xing)大(da)(da)口径跟(gen)管(guan)钻(zuan)进(jin),其(qi)难度很(hen)大(da)(da)。结合工(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)实(shi)(shi)践,前面(mian)(mian)次成(cheng)(cheng)(cheng)(cheng)功开发对(dui)心式(shi)、自(zi)锐式(shi)跟(gen)管(guan)钻(zuan)具及配(pei)套的(de)工(gong)(gong)(gong)艺技术,很(hen)好地(di)解决(jue)了工(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)难题,并针对(dui)不(bu)同性状的(de)堆积(ji)(ji)(ji)体提出了相应(ying)的(de)施(shi)(shi)工(gong)(gong)(gong)措施(shi)(shi)。B1工(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)滑(hua)坡(po)体概况(kuang)川(chuan)(chuan)藏(zang)公(gong)(gong)路(lu)(lu)(lu)(lu)二郎(lang)山隧(sui)道是(shi)(shi)国家“九五”重点(dian)建(jian)设工(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)。龙胆(dan)溪(xi)(xi)滑(hua)坡(po)(1号)位于四川(chuan)(chuan)省天全县二郎(lang)山隧(sui)道东(dong)口龙胆(dan)溪(xi)(xi)右岸(an),国道318线K2729+920～K2730+425处。滑(hua)坡(po)地(di)形陡(dou)峻(jun),平均坡(po)度约43°,前后缘海拨分别为(wei)(wei)1840m和(he)2135m。滑(hua)坡(po)分东(dong)西两块(kuai)(kuai):K2729+920～K2730+165为(wei)(wei)东(dong)块(kuai)(kuai),K2730+166～425为(wei)(wei)西块(kuai)(kuai)。从(cong)监测资料和(he)工(gong)(gong)(gong)程(cheng)(cheng)(cheng)(cheng)施(shi)(shi)工(gong)(gong)(gong)所能揭示(shi)的(de)情况(kuang)看,西块(kuai)(kuai)滑(hua)体自(zi)公(gong)(gong)路(lu)(lu)(lu)(lu)为(wei)(wei)界分为(wei)(wei)上下多级(ji),下级(ji)又分为(wei)(wei)浅、中(zhong)、深三层滑(hua)面(mian)(mian)。其(qi)中(zhong)好活跃的(de)是(shi)(shi)紧邻公(gong)(gong)路(lu)(lu)(lu)(lu)的(de)上级(ji)滑(hua)坡(po)和(he)下级(ji)的(de)第三层滑(hua)面(mian)(mian)。西块(kuai)(kuai)规模(mo)大(da)(da),滑(hua)面(mian)(mian)深、稳(wen)定性差。跟(gen)管(guan)可以根(gen)据需要进(jin)行(xing)弯曲和(he)弯折，适应(ying)复杂的(de)布线环境。山东(dong)实(shi)(shi)华机械跟(gen)管(guan)厂(chang)家供(gong)应(ying)

排水(shui)(shui)管(guan)(guan)道(dao)钢板内衬修(xiu)(xiu)改，适用(yong)于大口(kou)径管(guan)(guan)道(dao)接(jie)(jie)口(kou)错位、渗漏的(de)免开挖(wa)接(jie)(jie)口(kou)柔性(xing)修(xiu)(xiu)改工(gong)(gong)(gong)(gong)艺技术(shu)，具(ju)有(you)规划合理、实用(yong)性(xing)强、修(xiu)(xiu)改质量高、施(shi)(shi)工(gong)(gong)(gong)(gong)简练、工(gong)(gong)(gong)(gong)期短、施(shi)(shi)工(gong)(gong)(gong)(gong)不(bu)受地上(shang)(shang)(shang)交通(tong)、环境温湿度的(de)影响等特点(dian)。修(xiu)(xiu)复(fu)流(liu)程：通(tong)风(feng)(feng)检(jian)测(ce)(ce)(ce)。翻开施(shi)(shi)工(gong)(gong)(gong)(gong)管(guan)(guan)段检(jian)查(cha)(cha)井(jing)(jing)及前(qian)后(hou)检(jian)查(cha)(cha)井(jing)(jing)自然通(tong)风(feng)(feng)或(huo)机械通(tong)风(feng)(feng)30分钟，运用(yong)毒(du)气(qi)(qi)检(jian)测(ce)(ce)(ce)仪对施(shi)(shi)工(gong)(gong)(gong)(gong)管(guan)(guan)段作业井(jing)(jing)内进行(xing)上(shang)(shang)(shang)中下3个部位有(you)毒(du)有(you)害气(qi)(qi)体(ti)检(jian)测(ce)(ce)(ce)。气(qi)(qi)体(ti)检(jian)测(ce)(ce)(ce)合格方(fang)可(ke)(ke)施(shi)(shi)作业业，气(qi)(qi)体(ti)检(jian)测(ce)(ce)(ce)不(bu)合格须继续(xu)通(tong)风(feng)(feng)，直到气(qi)(qi)体(ti)检(jian)测(ce)(ce)(ce)合格。封(feng)(feng)堵(du)(du)导流(liu)。气(qi)(qi)囊封(feng)(feng)堵(du)(du)加砌筑封(feng)(feng)堵(du)(du)墙封(feng)(feng)堵(du)(du)施(shi)(shi)工(gong)(gong)(gong)(gong)管(guan)(guan)段上(shang)(shang)(shang)游(you)检(jian)查(cha)(cha)井(jing)(jing)出水(shui)(shui)口(kou)和(he)下面(mian)检(jian)查(cha)(cha)井(jing)(jing)入(ru)水(shui)(shui)口(kou)，用(yong)水(shui)(shui)泵(beng)从上(shang)(shang)(shang)游(you)封(feng)(feng)堵(du)(du)检(jian)查(cha)(cha)井(jing)(jing)的(de)前(qian)一(yi)个井(jing)(jing)将(jiang)水(shui)(shui)导流(liu)至下面(mian)封(feng)(feng)堵(du)(du)检(jian)查(cha)(cha)井(jing)(jing)的(de)后(hou)一(yi)个井(jing)(jing)。施(shi)(shi)工(gong)(gong)(gong)(gong)前(qian)预处理用(yong)高压冲刷吸(xi)污车(che)对作业管(guan)(guan)道(dao)进行(xing)冲刷，将(jiang)淤积物冲刷到检(jian)查(cha)(cha)井(jing)(jing)内，用(yong)吸(xi)污车(che)抽(chou)吸(xi)洁净。冲刷水(shui)(shui)流(liu)方(fang)向(xiang)宜依(yi)照排水(shui)(shui)水(shui)(shui)流(liu)方(fang)向(xiang)共同(tong)。管(guan)(guan)道(dao)外(wai)（或(huo)管(guan)(guan)内）注浆(jiang)固(gu)化(hua)土(tu)体(ti)工(gong)(gong)(gong)(gong)艺原(yuan)理小管(guan)(guan)径由路面(mian)向(xiang)管(guan)(guan)道(dao)基(ji)层灌(guan)浆(jiang)，灌(guan)浆(jiang)资料首要有(you)聚氨酯(zhi)、水(shui)(shui)泥基(ji)类等，现(xian)场应根(gen)据不(bu)同(tong)的(de)实际需要进行(xing)选择不(bu)同(tong)的(de)资料针对存在洼陷变形(xing)、决裂(lie)渗漏水(shui)(shui)严峻部分的(de)管(guan)(guan)道(dao)施(shi)(shi)行(xing)土(tu)体(ti)固(gu)化(hua)。小管(guan)(guan)径土(tu)体(ti)固(gu)化(hua)施(shi)(shi)工(gong)(gong)(gong)(gong)①施(shi)(shi)工(gong)(gong)(gong)(gong)机械钻(zuan)孔(kong)机械：选用(yong)100型(xing)（或(huo)300型(xing)）工(gong)(gong)(gong)(gong)程地质钻(zuan)机，套管(guan)(guan)护壁(笔直钻(zuan)孔(kong)时选用(yong))，或(huo)许选用(yong)跟(gen)管(guan)(guan)钻(zuan)机(选用(yong)108mm套管(guan)(guan)。青海同(tong)心跟(gen)管(guan)(guan)施(shi)(shi)工(gong)(gong)(gong)(gong)厂家跟(gen)管(guan)(guan)可(ke)(ke)以(yi)有(you)效地减(jian)少电线的(de)混乱和(he)交叉，方(fang)便维护和(he)检(jian)修(xiu)(xiu)。

该(gai)【锚(mao)(mao)(mao)(mao)杆(gan)、锚(mao)(mao)(mao)(mao)索(suo)跟管(guan)(guan)造(zao)(zao)孔工(gong)艺(yi)施工(gong)说明】是(shi)由【大笑大甜(tian)】上传(chuan)分(fen)享(xiang)，文(wen)档(dang)一共【4】页，该(gai)文(wen)档(dang)可(ke)(ke)以在线阅读，需要了(le)解更多(duo)关于【锚(mao)(mao)(mao)(mao)杆(gan)、锚(mao)(mao)(mao)(mao)索(suo)跟管(guan)(guan)造(zao)(zao)孔工(gong)艺(yi)施工(gong)说明】的(de)(de)(de)(de)内容(rong)，可(ke)(ke)以使(shi)用(yong)淘豆网的(de)(de)(de)(de)站内搜索(suo)功能(neng)，选择自己(ji)适合的(de)(de)(de)(de)文(wen)档(dang)，以下(xia)文(wen)字是(shi)截取该(gai)文(wen)章内的(de)(de)(de)(de)部分(fen)文(wen)字，如(ru)需要获得完整电(dian)子版，请下(xia)载此文(wen)档(dang)到您的(de)(de)(de)(de)设(she)备，方便您编辑和打印。锚(mao)(mao)(mao)(mao)杆(gan)、锚(mao)(mao)(mao)(mao)索(suo)跟管(guan)(guan)造(zao)(zao)孔工(gong)艺(yi)施工(gong)说明一、工(gong)程(cheng)大要及(ji)地质(zhi)(zhi)(zhi)(zhi)条件DK752+780~DK753+060段(duan)十级(ji)边(bian)坡设(she)计(ji)(ji)(ji)防范为锚(mao)(mao)(mao)(mao)杆(gan)框(kuang)架梁,、九级(ji)边(bian)坡设(she)计(ji)(ji)(ji)防范为锚(mao)(mao)(mao)(mao)索(suo)框(kuang)架梁,锚(mao)(mao)(mao)(mao)杆(gan)设(she)计(ji)(ji)(ji)长度12m,锚(mao)(mao)(mao)(mao)索(suo)设(she)计(ji)(ji)(ji)长度25m,九、十级(ji)边(bian)坡内设(she)计(ji)(ji)(ji)地质(zhi)(zhi)(zhi)(zhi)情况(kuang)为粉(fen)砂(sha)质(zhi)(zhi)(zhi)(zhi)泥(ni)岩,褐黄色(se),浅灰色(se),灰绿(lv)色(se),棕红色(se),弱风化,泥(ni)质(zhi)(zhi)(zhi)(zhi)构造(zao)(zao),层状构造(zao)(zao),主要矿(kuang)物(wu)(wu)成(cheng)(cheng)(cheng)(cheng)分(fen)为黏土(tu)矿(kuang)物(wu)(wu)及(ji)石英,岩质(zhi)(zhi)(zhi)(zhi)软,风干易崩解,层厚30m,IV级(ji),δo=400kPa。依(yi)照现场勘查(cha),DK752+780~DK753+060段(duan)九、十级(ji)边(bian)坡内实质(zhi)(zhi)(zhi)(zhi)地质(zhi)(zhi)(zhi)(zhi)情况(kuang)为粗(cu)圆砾土(tu),青灰色(se),稍(shao)湿,中密(mi)(mi)状,局部稍(shao)密(mi)(mi),充填(tian)物(wu)(wu)为砂(sha)砾,层厚约15~20m,II级(ji),δo=450kPa,与(yu)原设(she)计(ji)(ji)(ji)地质(zhi)(zhi)(zhi)(zhi)情况(kuang)不符,质(zhi)(zhi)(zhi)(zhi)地不均(jun),构造(zao)(zao)松弛,不能(neng)够(gou)被钻(zuan)(zuan)(zuan)(zuan)头冲击成(cheng)(cheng)(cheng)(cheng)粉(fen)状碎块(kuai)后(hou)排(pai)出,造(zao)(zao)成(cheng)(cheng)(cheng)(cheng)阻力(li)增大,钻(zuan)(zuan)(zuan)(zuan)机无法旋转,钻(zuan)(zuan)(zuan)(zuan)进过程(cheng)的(de)(de)(de)(de)扰(rao)动,造(zao)(zao)成(cheng)(cheng)(cheng)(cheng)已成(cheng)(cheng)(cheng)(cheng)孔段(duan)塌(ta)孔,钻(zuan)(zuan)(zuan)(zuan)杆(gan)波折断裂,钻(zuan)(zuan)(zuan)(zuan)具卡死,无法回收,因此采用(yong)“跟管(guan)(guan)”工(gong)艺(yi),导管(guan)(guan)与(yu)钻(zuan)(zuan)(zuan)(zuan)机钻(zuan)(zuan)(zuan)(zuan)头同时钻(zuan)(zuan)(zuan)(zuan)进。

全回(hui)转(zhuan)全套管(guan)钻(zuan)(zuan)机(ji)施(shi)工(gong)(gong)工(gong)(gong)艺介绍#设(she)备(bei)(bei)简介全回(hui)转(zhuan)全套管(guan)钻(zuan)(zuan)机(ji)性(xing)能参数（日本车辆制(zhi)造(zao)株式会(hui)社）主要工(gong)(gong)作范(fan)围采(cai)用本设(she)备(bei)(bei)对成墙或成桩(zhuang)(zhuang)(zhuang)遇到的(de)地(di)下(xia)(xia)(xia)障(zhang)碍(ai)物(wu)(wu)(wu)进(jin)行消(xiao)(xiao)掉，地(di)下(xia)(xia)(xia)障(zhang)碍(ai)物(wu)(wu)(wu)包括地(di)下(xia)(xia)(xia)钢(gang)筋(jin)混凝土结构(gou)、地(di)下(xia)(xia)(xia)钢(gang)结构(gou)、地(di)下(xia)(xia)(xia)孤石、岩(yan)层等;各(ge)(ge)种(zhong)直(zhi)(zhi)径(jing)钻(zuan)(zuan)孔灌注(zhu)桩(zhuang)(zhuang)(zhuang)、预制(zhi)桩(zhuang)(zhuang)(zhuang)拔(ba)除、清理;3、地(di)下(xia)(xia)(xia)结构(gou)咬(yao)合围护桩(zhuang)(zhuang)(zhuang)施(shi)工(gong)(gong)，咬(yao)合桩(zhuang)(zhuang)(zhuang)直(zhi)(zhi)径(jing)2m~1m;地(di)下(xia)(xia)(xia)围护结构(gou)冷缝、绕流缺(que)陷封闭处理;临时(shi)及(ji)长久性(xing)钢(gang)管(guan)柱精确定位施(shi)工(gong)(gong)，即(ji)盖(gai)挖法施(shi)工(gong)(gong)时(shi)，钢(gang)立柱的(de)精确插入施(shi)工(gong)(gong);嵌(qian)岩(yan)桩(zhuang)(zhuang)(zhuang)施(shi)工(gong)(gong)，直(zhi)(zhi)径(jing)2m至1m钻(zuan)(zuan)孔灌注(zhu)桩(zhuang)(zhuang)(zhuang)穿越地(di)下(xia)(xia)(xia)溶洞、岩(yan)层时(shi)，采(cai)用全套管(guan)跟(gen)进(jin)、切入施(shi)工(gong)(gong)。一地(di)下(xia)(xia)(xia)障(zhang)碍(ai)物(wu)(wu)(wu)消(xiao)(xiao)掉施(shi)工(gong)(gong)地(di)下(xia)(xia)(xia)障(zhang)碍(ai)物(wu)(wu)(wu)消(xiao)(xiao)掉施(shi)工(gong)(gong)是(shi)利(li)用全回(hui)转(zhuan)全套管(guan)钻(zuan)(zuan)机(ji)的(de)夹(jia)紧系统，夹(jia)紧各(ge)(ge)种(zhong)直(zhi)(zhi)径(jing)的(de)带(dai)特种(zhong)刀(dao)头(tou)特制(zhi)钢(gang)套管(guan)，再通(tong)过专(zhuan)门配备(bei)(bei)的(de)液(ye)压动力(li)站提(ti)(ti)供液(ye)压动力(li)，驱(qu)动全回(hui)转(zhuan)钻(zuan)(zuan)机(ji)上的(de)液(ye)压马达和(he)升(sheng)降油缸，将钢(gang)套管(guan)旋转(zhuan)切入地(di)层及(ji)地(di)下(xia)(xia)(xia)障(zhang)碍(ai)物(wu)(wu)(wu)，然后(hou)辅以实(shi)用带(dai)自由(you)落钩(gou)的(de)履(lv)带(dai)吊、冲(chong)(chong)抓斗(dou)、十字冲(chong)(chong)锤、楔形锤等设(she)备(bei)(bei)、设(she)施(shi)，将套管(guan)内土体(ti)及(ji)障(zhang)碍(ai)物(wu)(wu)(wu)取出，从而将地(di)下(xia)(xia)(xia)障(zhang)碍(ai)物(wu)(wu)(wu)消(xiao)(xiao)掉。二拔(ba)除各(ge)(ge)种(zhong)直(zhi)(zhi)径(jing)钻(zuan)(zuan)孔灌注(zhu)桩(zhuang)(zhuang)(zhuang)、预制(zhi)桩(zhuang)(zhuang)(zhuang)施(shi)工(gong)(gong)拔(ba)除各(ge)(ge)类灌注(zhu)桩(zhuang)(zhuang)(zhuang)、预制(zhi)桩(zhuang)(zhuang)(zhuang)施(shi)工(gong)(gong)是(shi)利(li)用全回(hui)转(zhuan)全套管(guan)钻(zuan)(zuan)机(ji)的(de)夹(jia)紧系统，夹(jia)紧各(ge)(ge)种(zhong)直(zhi)(zhi)径(jing)的(de)带(dai)特种(zhong)刀(dao)头(tou)特制(zhi)钢(gang)套管(guan)，再通(tong)过专(zhuan)门配备(bei)(bei)的(de)液(ye)压动力(li)站提(ti)(ti)供液(ye)压动力(li)。跟(gen)管(guan)可(ke)以根(gen)据(ju)需要进(jin)行防(fang)水和(he)防(fang)尘处理，提(ti)(ti)高电线(xian)的(de)可(ke)靠性(xing)。

由于原(yuan)地质矿产部(bu)在部(bu)标《DZ3-79》中规定(ding)了钻(zuan)(zuan)(zuan)机(ji)(ji)类别标志(zhi)，均全(quan)(quan)部(bu)用(yong)(yong)汉(han)语拼(pin)音字母标注。立(li)轴(zhou)式钻(zuan)(zuan)(zuan)机(ji)(ji)应用(yong)(yong)较为广。原(yuan)地质矿产部(bu)立(li)轴(zhou)式钻(zuan)(zuan)(zuan)机(ji)(ji)系(xi)列(lie)定(ding)名(ming)(ming)为XY型(xing)，原(yuan)冶金(jin)工(gong)业部(bu)立(li)轴(zhou)式钻(zuan)(zuan)(zuan)机(ji)(ji)系(xi)列(lie)定(ding)名(ming)(ming)为YL（冶立(li)）型(xing)，有(you)(you)色金(jin)属工(gong)业总公司立(li)轴(zhou)式钻(zuan)(zuan)(zuan)机(ji)(ji)系(xi)列(lie)定(ding)名(ming)(ming)为CS（穿山）型(xing)。原(yuan)煤(mei)炭工(gong)业部(bu)立(li)轴(zhou)式钻(zuan)(zuan)(zuan)机(ji)(ji)系(xi)列(lie)定(ding)名(ming)(ming)为TK（探矿）型(xing)。[1]全(quan)(quan)液压(ya)履(lv)(lv)带式煤(mei)矿坑(keng)道(dao)钻(zuan)(zuan)(zuan)机(ji)(ji)全(quan)(quan)液压(ya)履(lv)(lv)带式煤(mei)矿坑(keng)道(dao)钻(zuan)(zuan)(zuan)机(ji)(ji)是在总结国内外先进(jin)(jin)钻(zuan)(zuan)(zuan)机(ji)(ji)基础上研制(zhi)开发的新(xin)型(xing)一体式履(lv)(lv)带全(quan)(quan)液压(ya)坑(keng)道(dao)钻(zuan)(zuan)(zuan)机(ji)(ji)。钻(zuan)(zuan)(zuan)机(ji)(ji)采用(yong)(yong)进(jin)(jin)口(kou)液压(ya)系(xi)统，钢制(zhi)矿用(yong)(yong)履(lv)(lv)带底(di)盘，全(quan)(quan)液压(ya)动(dong)力(li)头(tou)三维铰接(jie)伸(shen)缩等(deng)新(xin)型(xing)机(ji)(ji)构(gou)。具(ju)有(you)(you)转矩高(gao)(gao)，无(wu)级调速(su)，好(hao)的多角度钻(zuan)(zuan)(zuan)孔开孔快速(su)定(ding)位，给进(jin)(jin)和起拔能力(li)大(da)，操作简单，灵活可靠，劳动(dong)强度低，工(gong)作效率高(gao)(gao)等(deng)特点。主(zhu)要适(shi)用(yong)(yong)于煤(mei)矿及非煤(mei)矿山井(jing)下(xia)水气。跟管可以防止电线被人为损(sun)坏或非法接(jie)触，提高(gao)(gao)安全(quan)(quan)性(xing)(xing)。河南(nan)高(gao)(gao)性(xing)(xing)能跟管性(xing)(xing)能

跟(gen)管是一(yi)种用(yong)于固定和保护(hu)电线、电缆等的管道。山东实(shi)华机械跟(gen)管厂(chang)家供应(ying)

工(gong)(gong)字钢(gang)(gang)接(jie)(jie)(jie)头(tou)(tou)采用10mm厚钢(gang)(gang)板焊(han)接(jie)(jie)(jie)成(cheng)，与钢(gang)(gang)筋(jin)(jin)(jin)笼(long)焊(han)接(jie)(jie)(jie)牢(lao)固(gu)。先施工(gong)(gong)一(yi)期(qi)槽段(duan)(duan)(duan)，一(yi)期(qi)槽段(duan)(duan)(duan)浇(jiao)注混凝土(tu)(tu)前在工(gong)(gong)字钢(gang)(gang)背后回(hui)填(tian)土(tu)(tu)或碎石，在二(er)期(qi)槽段(duan)(duan)(duan)成(cheng)槽结束后用钢(gang)(gang)刷进(jin)(jin)行(xing)接(jie)(jie)(jie)头(tou)(tou)刷壁处(chu)理。吊(diao)(diao)放(fang)二(er)期(qi)钢(gang)(gang)筋(jin)(jin)(jin)笼(long)端头(tou)(tou)向内收15mm，便于(yu)二(er)期(qi)槽段(duan)(duan)(duan)与一(yi)期(qi)槽段(duan)(duan)(duan)端头(tou)(tou)相互嵌套，形(xing)成(cheng)整体。钢(gang)(gang)筋(jin)(jin)(jin)笼(long)加(jia)(jia)工(gong)(gong)与吊(diao)(diao)装钢(gang)(gang)筋(jin)(jin)(jin)笼(long)制作应(ying)(ying)确(que)保钢(gang)(gang)筋(jin)(jin)(jin)的(de)(de)型号(hao)、间距、数量准(zhun)确(que)，同(tong)时(shi)预(yu)先确(que)定(ding)浇(jiao)筑混凝土(tu)(tu)用导(dao)管(guan)(guan)的(de)(de)位置。钢(gang)(gang)筋(jin)(jin)(jin)笼(long)的(de)(de)起吊(diao)(diao)、运输和吊(diao)(diao)放(fang)应(ying)(ying)根据重量选取主、副吊(diao)(diao)设备，并(bing)进(jin)(jin)行(xing)吊(diao)(diao)点设计(ji)及加(jia)(jia)固(gu)。吊(diao)(diao)装过程中不(bu)得产(chan)生不(bu)能恢(hui)复的(de)(de)变形(xing)，插入钢(gang)(gang)筋(jin)(jin)(jin)笼(long)时(shi)应(ying)(ying)对(dui)准(zhun)单元槽段(duan)(duan)(duan)中心，垂直(zhi)而又准(zhun)确(que)的(de)(de)插入槽内。水下(xia)混凝土(tu)(tu)浇(jiao)筑槽段(duan)(duan)(duan)长(zhang)度不(bu)大于(yu)6m时(shi)，混凝土(tu)(tu)宜采用两根导(dao)管(guan)(guan)同(tong)时(shi)浇(jiao)筑，槽段(duan)(duan)(duan)长(zhang)度大于(yu)6m时(shi)，混凝土(tu)(tu)宜采用三根导(dao)管(guan)(guan)同(tong)时(shi)浇(jiao)筑。每根导(dao)管(guan)(guan)分担的(de)(de)浇(jiao)筑面(mian)积应(ying)(ying)基(ji)本均等。钢(gang)(gang)筋(jin)(jin)(jin)笼(long)就位后应(ying)(ying)及时(shi)浇(jiao)筑混凝土(tu)(tu)，浇(jiao)筑面(mian)上升(sheng)速度不(bu)宜小于(yu)3m/h，其施工(gong)(gong)工(gong)(gong)艺(yi)与水下(xia)灌(guan)注桩类似。山东实(shi)华(hua)机械跟管(guan)(guan)厂家供应(ying)(ying)

本文来(lai)自(zi)海润(run)达物联科技(ji)有(you)限责(ze)任公司：//qfd1mz.cn/Article/40d00499955.html