堆积体(ti)锚(mao)索(suo)钻(zuan)孔跟(gen)(gen)管(guan)钻(zuan)进(jin)工(gong)(gong)(gong)艺技(ji)术的应用(yong)楼(lou)日新(成都理工(gong)(gong)(gong)大(da)学(xue),四川(chuan)成都610059)关键词:滑(hua)(hua)(hua)坡(po)(po)治理;冲击跟(gen)(gen)管(guan)钻(zuan)进(jin);堆积体(ti);锚(mao)索(suo);抗滑(hua)(hua)(hua)桩;川(chuan)藏公(gong)(gong)路工(gong)(gong)(gong)程(cheng)摘(zhai)要(yao):川(chuan)藏公(gong)(gong)路二郎山(shan)隧道是国家“九(jiu)五”重点建设工(gong)(gong)(gong)程(cheng)。长期以来龙(long)(long)胆(dan)溪(xi)(xi)滑(hua)(hua)(hua)坡(po)(po)影响川(chuan)藏公(gong)(gong)路这一(yi)交通大(da)动脉,由于紧(jin)邻公(gong)(gong)路的滑(hua)(hua)(hua)坡(po)(po)体(ti)规(gui)模(mo)大(da),滑(hua)(hua)(hua)面(mian)(mian)深(shen)、稳(wen)定性(xing)差(cha),设计采用(yong)了(le)较长的堆积体(ti)锚(mao)索(suo)(76m)和较深(shen)的堆积体(ti)抗滑(hua)(hua)(hua)桩(65m),而在(zai)国内外(wai)还没有(you)类似工(gong)(gong)(gong)程(cheng)的成功(gong)经验,特别是在(zai)松散(san)堆积体(ti)中(zhong)进(jin)行大(da)口径跟(gen)(gen)管(guan)钻(zuan)进(jin),其难(nan)度(du)很大(da)。结合工(gong)(gong)(gong)程(cheng)实践,前(qian)面(mian)(mian)次成功(gong)开发对心式、自(zi)锐式跟(gen)(gen)管(guan)钻(zuan)具(ju)及配套(tao)的工(gong)(gong)(gong)艺技(ji)术,很好地解决了(le)工(gong)(gong)(gong)程(cheng)难(nan)题(ti),并针对不(bu)同(tong)性(xing)状的堆积体(ti)提出了(le)相应的施(shi)工(gong)(gong)(gong)措施(shi)。B1工(gong)(gong)(gong)程(cheng)滑(hua)(hua)(hua)坡(po)(po)体(ti)概况川(chuan)藏公(gong)(gong)路二郎山(shan)隧道是国家“九(jiu)五”重点建设工(gong)(gong)(gong)程(cheng)。龙(long)(long)胆(dan)溪(xi)(xi)滑(hua)(hua)(hua)坡(po)(po)(1号)位于四川(chuan)省天全县二郎山(shan)隧道东(dong)(dong)口龙(long)(long)胆(dan)溪(xi)(xi)右岸,国道318线(xian)K2729+920～K2730+425处。滑(hua)(hua)(hua)坡(po)(po)地形(xing)陡(dou)峻,平均坡(po)(po)度(du)约43°,前(qian)后缘(yuan)海(hai)拨分别为(wei)1840m和2135m。滑(hua)(hua)(hua)坡(po)(po)分东(dong)(dong)西(xi)两块(kuai):K2729+920～K2730+165为(wei)东(dong)(dong)块(kuai),K2730+166～425为(wei)西(xi)块(kuai)。从监(jian)测资料和工(gong)(gong)(gong)程(cheng)施(shi)工(gong)(gong)(gong)所能揭(jie)示(shi)的情况看,西(xi)块(kuai)滑(hua)(hua)(hua)体(ti)自(zi)公(gong)(gong)路为(wei)界(jie)分为(wei)上下(xia)多级(ji),下(xia)级(ji)又分为(wei)浅、中(zhong)、深(shen)三(san)层滑(hua)(hua)(hua)面(mian)(mian)。其中(zhong)好活(huo)跃的是紧(jin)邻公(gong)(gong)路的上级(ji)滑(hua)(hua)(hua)坡(po)(po)和下(xia)级(ji)的第三(san)层滑(hua)(hua)(hua)面(mian)(mian)。西(xi)块(kuai)规(gui)模(mo)大(da),滑(hua)(hua)(hua)面(mian)(mian)深(shen)、稳(wen)定性(xing)差(cha)。跟(gen)(gen)管(guan)可以根据需要(yao)进(jin)行弯曲和弯折，适应复杂的布(bu)线(xian)环境。山(shan)东(dong)(dong)实华机(ji)械跟(gen)(gen)管(guan)厂家供应

排(pai)(pai)水(shui)管(guan)(guan)(guan)道钢板内(nei)衬修改，适(shi)用(yong)(yong)(yong)(yong)(yong)于(yu)大口(kou)(kou)(kou)(kou)径管(guan)(guan)(guan)道接口(kou)(kou)(kou)(kou)错位、渗漏的免开挖接口(kou)(kou)(kou)(kou)柔性(xing)修改工(gong)(gong)(gong)(gong)(gong)(gong)(gong)艺技(ji)术，具有(you)(you)规划(hua)合(he)理、实用(yong)(yong)(yong)(yong)(yong)性(xing)强(qiang)、修改质量(liang)高、施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)简练、工(gong)(gong)(gong)(gong)(gong)(gong)(gong)期短、施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)不(bu)受(shou)地上(shang)交通、环(huan)境温湿度的影(ying)响(xiang)等特点。修复(fu)流(liu)(liu)程：通风检(jian)(jian)(jian)测(ce)(ce)。翻开施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)管(guan)(guan)(guan)段(duan)检(jian)(jian)(jian)查(cha)(cha)(cha)井(jing)及前(qian)后检(jian)(jian)(jian)查(cha)(cha)(cha)井(jing)自然通风或机(ji)(ji)械(xie)通风30分钟，运用(yong)(yong)(yong)(yong)(yong)毒(du)气(qi)(qi)检(jian)(jian)(jian)测(ce)(ce)仪对(dui)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)管(guan)(guan)(guan)段(duan)作业(ye)井(jing)内(nei)进行(xing)上(shang)中下(xia)3个部位有(you)(you)毒(du)有(you)(you)害气(qi)(qi)体(ti)检(jian)(jian)(jian)测(ce)(ce)。气(qi)(qi)体(ti)检(jian)(jian)(jian)测(ce)(ce)合(he)格(ge)(ge)方(fang)(fang)(fang)可施(shi)(shi)(shi)作业(ye)业(ye)，气(qi)(qi)体(ti)检(jian)(jian)(jian)测(ce)(ce)不(bu)合(he)格(ge)(ge)须继(ji)续通风，直(zhi)到气(qi)(qi)体(ti)检(jian)(jian)(jian)测(ce)(ce)合(he)格(ge)(ge)。封(feng)堵(du)(du)导(dao)流(liu)(liu)。气(qi)(qi)囊封(feng)堵(du)(du)加(jia)砌筑封(feng)堵(du)(du)墙封(feng)堵(du)(du)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)管(guan)(guan)(guan)段(duan)上(shang)游检(jian)(jian)(jian)查(cha)(cha)(cha)井(jing)出(chu)水(shui)口(kou)(kou)(kou)(kou)和下(xia)面检(jian)(jian)(jian)查(cha)(cha)(cha)井(jing)入水(shui)口(kou)(kou)(kou)(kou)，用(yong)(yong)(yong)(yong)(yong)水(shui)泵从上(shang)游封(feng)堵(du)(du)检(jian)(jian)(jian)查(cha)(cha)(cha)井(jing)的前(qian)一(yi)个井(jing)将(jiang)水(shui)导(dao)流(liu)(liu)至下(xia)面封(feng)堵(du)(du)检(jian)(jian)(jian)查(cha)(cha)(cha)井(jing)的后一(yi)个井(jing)。施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)前(qian)预处理用(yong)(yong)(yong)(yong)(yong)高压冲刷(shua)吸(xi)(xi)污车对(dui)作业(ye)管(guan)(guan)(guan)道进行(xing)冲刷(shua)，将(jiang)淤积物冲刷(shua)到检(jian)(jian)(jian)查(cha)(cha)(cha)井(jing)内(nei)，用(yong)(yong)(yong)(yong)(yong)吸(xi)(xi)污车抽吸(xi)(xi)洁净。冲刷(shua)水(shui)流(liu)(liu)方(fang)(fang)(fang)向(xiang)宜(yi)依照(zhao)排(pai)(pai)水(shui)水(shui)流(liu)(liu)方(fang)(fang)(fang)向(xiang)共同(tong)。管(guan)(guan)(guan)道外（或管(guan)(guan)(guan)内(nei)）注浆固化土体(ti)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)艺原理小管(guan)(guan)(guan)径由路面向(xiang)管(guan)(guan)(guan)道基(ji)层(ceng)灌浆，灌浆资料首要有(you)(you)聚氨酯、水(shui)泥基(ji)类等，现场(chang)应(ying)根据不(bu)同(tong)的实际需(xu)要进行(xing)选择不(bu)同(tong)的资料针对(dui)存在洼(wa)陷变(bian)形、决裂(lie)渗漏水(shui)严峻(jun)部分的管(guan)(guan)(guan)道施(shi)(shi)(shi)行(xing)土体(ti)固化。小管(guan)(guan)(guan)径土体(ti)固化施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)①施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)机(ji)(ji)械(xie)钻(zuan)(zuan)(zuan)孔机(ji)(ji)械(xie)：选用(yong)(yong)(yong)(yong)(yong)100型（或300型）工(gong)(gong)(gong)(gong)(gong)(gong)(gong)程地质钻(zuan)(zuan)(zuan)机(ji)(ji)，套管(guan)(guan)(guan)护壁(笔直(zhi)钻(zuan)(zuan)(zuan)孔时(shi)选用(yong)(yong)(yong)(yong)(yong))，或许选用(yong)(yong)(yong)(yong)(yong)跟(gen)(gen)管(guan)(guan)(guan)钻(zuan)(zuan)(zuan)机(ji)(ji)(选用(yong)(yong)(yong)(yong)(yong)108mm套管(guan)(guan)(guan)。青海(hai)同(tong)心跟(gen)(gen)管(guan)(guan)(guan)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)(gong)厂家(jia)跟(gen)(gen)管(guan)(guan)(guan)可以有(you)(you)效地减少电线的混乱和交叉(cha)，方(fang)(fang)(fang)便维护和检(jian)(jian)(jian)修。

该【锚(mao)杆、锚(mao)索(suo)跟(gen)(gen)管造(zao)(zao)(zao)(zao)孔(kong)(kong)工(gong)(gong)艺施(shi)工(gong)(gong)说(shuo)明】是由【大(da)(da)笑大(da)(da)甜】上传分享，文档(dang)一共【4】页，该文档(dang)可以在线阅读，需要了解(jie)更多(duo)关于【锚(mao)杆、锚(mao)索(suo)跟(gen)(gen)管造(zao)(zao)(zao)(zao)孔(kong)(kong)工(gong)(gong)艺施(shi)工(gong)(gong)说(shuo)明】的(de)(de)内容，可以使用淘豆(dou)网的(de)(de)站内搜索(suo)功能，选择自己(ji)适(shi)合(he)的(de)(de)文档(dang)，以下文字是截取该文章内的(de)(de)部分文字，如(ru)需要获得完整电(dian)子版(ban)，请下载此(ci)文档(dang)到您的(de)(de)设(she)备，方便您编辑和打(da)印。锚(mao)杆、锚(mao)索(suo)跟(gen)(gen)管造(zao)(zao)(zao)(zao)孔(kong)(kong)工(gong)(gong)艺施(shi)工(gong)(gong)说(shuo)明一、工(gong)(gong)程大(da)(da)要及地质(zhi)条件DK752+780~DK753+060段十(shi)(shi)级(ji)(ji)边(bian)坡(po)设(she)计(ji)防(fang)范为(wei)(wei)锚(mao)杆框架(jia)梁,、九(jiu)级(ji)(ji)边(bian)坡(po)设(she)计(ji)防(fang)范为(wei)(wei)锚(mao)索(suo)框架(jia)梁,锚(mao)杆设(she)计(ji)长(zhang)度(du)12m,锚(mao)索(suo)设(she)计(ji)长(zhang)度(du)25m,九(jiu)、十(shi)(shi)级(ji)(ji)边(bian)坡(po)内设(she)计(ji)地质(zhi)情况(kuang)为(wei)(wei)粉砂质(zhi)泥岩,褐黄色,浅灰色,灰绿色,棕红(hong)色,弱(ruo)风化,泥质(zhi)构(gou)(gou)造(zao)(zao)(zao)(zao),层状(zhuang)(zhuang)构(gou)(gou)造(zao)(zao)(zao)(zao),主要矿物成(cheng)(cheng)分为(wei)(wei)黏(nian)土矿物及石(shi)英,岩质(zhi)软,风干易崩(beng)解(jie),层厚(hou)30m,IV级(ji)(ji),δo=400kPa。依照现场勘查,DK752+780~DK753+060段九(jiu)、十(shi)(shi)级(ji)(ji)边(bian)坡(po)内实质(zhi)地质(zhi)情况(kuang)为(wei)(wei)粗圆砾(li)土,青灰色,稍湿,中密(mi)状(zhuang)(zhuang),局部稍密(mi),充(chong)填物为(wei)(wei)砂砾(li),层厚(hou)约15~20m,II级(ji)(ji),δo=450kPa,与原(yuan)设(she)计(ji)地质(zhi)情况(kuang)不(bu)(bu)符,质(zhi)地不(bu)(bu)均,构(gou)(gou)造(zao)(zao)(zao)(zao)松(song)弛,不(bu)(bu)能够被钻头冲击成(cheng)(cheng)粉状(zhuang)(zhuang)碎块后排出,造(zao)(zao)(zao)(zao)成(cheng)(cheng)阻力增大(da)(da),钻机(ji)无(wu)法旋(xuan)转,钻进过程的(de)(de)扰动,造(zao)(zao)(zao)(zao)成(cheng)(cheng)已成(cheng)(cheng)孔(kong)(kong)段塌孔(kong)(kong),钻杆波(bo)折断裂,钻具卡死,无(wu)法回收,因此(ci)采用“跟(gen)(gen)管”工(gong)(gong)艺,导管与钻机(ji)钻头同时钻进。

全回(hui)(hui)转(zhuan)全套管钻机(ji)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)工(gong)(gong)(gong)(gong)艺介(jie)绍#设(she)(she)备简介(jie)全回(hui)(hui)转(zhuan)全套管钻机(ji)性(xing)(xing)能(neng)参数（日本车辆制(zhi)造株(zhu)式(shi)会社(she)）主要工(gong)(gong)(gong)(gong)作(zuo)范围采用(yong)本设(she)(she)备对成墙或(huo)成桩(zhuang)(zhuang)(zhuang)(zhuang)遇到的(de)(de)地(di)(di)下(xia)(xia)障(zhang)(zhang)碍(ai)(ai)物(wu)进行消(xiao)(xiao)掉(diao)，地(di)(di)下(xia)(xia)障(zhang)(zhang)碍(ai)(ai)物(wu)包括地(di)(di)下(xia)(xia)钢筋(jin)混(hun)凝土结(jie)构(gou)、地(di)(di)下(xia)(xia)钢结(jie)构(gou)、地(di)(di)下(xia)(xia)孤石、岩(yan)层等(deng);各种(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)直(zhi)径(jing)钻孔(kong)灌注桩(zhuang)(zhuang)(zhuang)(zhuang)、预(yu)制(zhi)桩(zhuang)(zhuang)(zhuang)(zhuang)拔(ba)(ba)除(chu)(chu)、清理(li);3、地(di)(di)下(xia)(xia)结(jie)构(gou)咬合围护桩(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，咬合桩(zhuang)(zhuang)(zhuang)(zhuang)直(zhi)径(jing)2m~1m;地(di)(di)下(xia)(xia)围护结(jie)构(gou)冷缝、绕(rao)流缺(que)陷封闭处理(li);临时(shi)及长久性(xing)(xing)钢管柱(zhu)精确(que)定位施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，即盖挖法施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)时(shi)，钢立柱(zhu)的(de)(de)精确(que)插入(ru)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong);嵌岩(yan)桩(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)，直(zhi)径(jing)2m至1m钻孔(kong)灌注桩(zhuang)(zhuang)(zhuang)(zhuang)穿越地(di)(di)下(xia)(xia)溶洞、岩(yan)层时(shi)，采用(yong)全套管跟进、切(qie)入(ru)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)。一地(di)(di)下(xia)(xia)障(zhang)(zhang)碍(ai)(ai)物(wu)消(xiao)(xiao)掉(diao)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)地(di)(di)下(xia)(xia)障(zhang)(zhang)碍(ai)(ai)物(wu)消(xiao)(xiao)掉(diao)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)是(shi)(shi)利用(yong)全回(hui)(hui)转(zhuan)全套管钻机(ji)的(de)(de)夹(jia)紧系统，夹(jia)紧各种(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)直(zhi)径(jing)的(de)(de)带(dai)特(te)种(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)刀(dao)头特(te)制(zhi)钢套管，再通过(guo)(guo)专(zhuan)门(men)配备的(de)(de)液压(ya)动力站(zhan)提(ti)供液压(ya)动力，驱(qu)动全回(hui)(hui)转(zhuan)钻机(ji)上的(de)(de)液压(ya)马达(da)和升(sheng)降(jiang)油缸，将钢套管旋转(zhuan)切(qie)入(ru)地(di)(di)层及地(di)(di)下(xia)(xia)障(zhang)(zhang)碍(ai)(ai)物(wu)，然后(hou)辅以实用(yong)带(dai)自由落钩的(de)(de)履带(dai)吊、冲抓(zhua)斗(dou)、十字冲锤(chui)、楔形锤(chui)等(deng)设(she)(she)备、设(she)(she)施(shi)(shi)(shi)，将套管内土体及障(zhang)(zhang)碍(ai)(ai)物(wu)取出，从而将地(di)(di)下(xia)(xia)障(zhang)(zhang)碍(ai)(ai)物(wu)消(xiao)(xiao)掉(diao)。二拔(ba)(ba)除(chu)(chu)各种(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)直(zhi)径(jing)钻孔(kong)灌注桩(zhuang)(zhuang)(zhuang)(zhuang)、预(yu)制(zhi)桩(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)拔(ba)(ba)除(chu)(chu)各类(lei)灌注桩(zhuang)(zhuang)(zhuang)(zhuang)、预(yu)制(zhi)桩(zhuang)(zhuang)(zhuang)(zhuang)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)是(shi)(shi)利用(yong)全回(hui)(hui)转(zhuan)全套管钻机(ji)的(de)(de)夹(jia)紧系统，夹(jia)紧各种(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)直(zhi)径(jing)的(de)(de)带(dai)特(te)种(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)刀(dao)头特(te)制(zhi)钢套管，再通过(guo)(guo)专(zhuan)门(men)配备的(de)(de)液压(ya)动力站(zhan)提(ti)供液压(ya)动力。跟管可以根据需要进行防水和防尘处理(li)，提(ti)高电线的(de)(de)可靠(kao)性(xing)(xing)。

由于原(yuan)(yuan)(yuan)地质矿(kuang)产部(bu)(bu)在部(bu)(bu)标《DZ3-79》中规定(ding)了(le)钻(zuan)机(ji)(ji)(ji)类别标志，均(jun)全(quan)(quan)(quan)部(bu)(bu)用(yong)(yong)汉语拼音字(zi)母标注。立轴(zhou)(zhou)式(shi)(shi)(shi)钻(zuan)机(ji)(ji)(ji)应用(yong)(yong)较为广。原(yuan)(yuan)(yuan)地质矿(kuang)产部(bu)(bu)立轴(zhou)(zhou)式(shi)(shi)(shi)钻(zuan)机(ji)(ji)(ji)系列(lie)定(ding)名(ming)(ming)为XY型，原(yuan)(yuan)(yuan)冶金工业(ye)部(bu)(bu)立轴(zhou)(zhou)式(shi)(shi)(shi)钻(zuan)机(ji)(ji)(ji)系列(lie)定(ding)名(ming)(ming)为YL（冶立）型，有(you)色金属工业(ye)总公司立轴(zhou)(zhou)式(shi)(shi)(shi)钻(zuan)机(ji)(ji)(ji)系列(lie)定(ding)名(ming)(ming)为CS（穿山(shan)）型。原(yuan)(yuan)(yuan)煤炭工业(ye)部(bu)(bu)立轴(zhou)(zhou)式(shi)(shi)(shi)钻(zuan)机(ji)(ji)(ji)系列(lie)定(ding)名(ming)(ming)为TK（探矿(kuang)）型。[1]全(quan)(quan)(quan)液(ye)(ye)(ye)(ye)(ye)压(ya)(ya)履(lv)(lv)带(dai)(dai)式(shi)(shi)(shi)煤矿(kuang)坑(keng)道钻(zuan)机(ji)(ji)(ji)全(quan)(quan)(quan)液(ye)(ye)(ye)(ye)(ye)压(ya)(ya)履(lv)(lv)带(dai)(dai)式(shi)(shi)(shi)煤矿(kuang)坑(keng)道钻(zuan)机(ji)(ji)(ji)是(shi)在总结国内(nei)外(wai)先(xian)进(jin)钻(zuan)机(ji)(ji)(ji)基础上研(yan)制开发的新型一(yi)体式(shi)(shi)(shi)履(lv)(lv)带(dai)(dai)全(quan)(quan)(quan)液(ye)(ye)(ye)(ye)(ye)压(ya)(ya)坑(keng)道钻(zuan)机(ji)(ji)(ji)。钻(zuan)机(ji)(ji)(ji)采用(yong)(yong)进(jin)口液(ye)(ye)(ye)(ye)(ye)压(ya)(ya)系统，钢制矿(kuang)用(yong)(yong)履(lv)(lv)带(dai)(dai)底盘，全(quan)(quan)(quan)液(ye)(ye)(ye)(ye)(ye)压(ya)(ya)动力头三维(wei)铰接伸缩等新型机(ji)(ji)(ji)构。具有(you)转矩高(gao)(gao)(gao)，无级调(diao)速，好的多角(jiao)度(du)(du)钻(zuan)孔开孔快(kuai)速定(ding)位，给进(jin)和起拔(ba)能(neng)(neng)力大，操作(zuo)简单，灵活可(ke)靠，劳动强度(du)(du)低，工作(zuo)效率高(gao)(gao)(gao)等特点。主要(yao)适用(yong)(yong)于煤矿(kuang)及非煤矿(kuang)山(shan)井下水(shui)气。跟管(guan)可(ke)以防(fang)止电(dian)线被(bei)人(ren)为损坏或非法接触，提高(gao)(gao)(gao)安全(quan)(quan)(quan)性。河南高(gao)(gao)(gao)性能(neng)(neng)跟管(guan)性能(neng)(neng)

跟管是(shi)一种用于固定和保(bao)护电线、电缆等的管道。山东实华机械跟管厂家供应

工(gong)字(zi)钢(gang)(gang)(gang)(gang)(gang)接(jie)头采用10mm厚(hou)钢(gang)(gang)(gang)(gang)(gang)板(ban)焊接(jie)成(cheng)，与钢(gang)(gang)(gang)(gang)(gang)筋(jin)(jin)笼焊接(jie)牢固。先施工(gong)一(yi)期(qi)(qi)(qi)(qi)槽(cao)(cao)(cao)段(duan)(duan)(duan)，一(yi)期(qi)(qi)(qi)(qi)槽(cao)(cao)(cao)段(duan)(duan)(duan)浇注混(hun)凝(ning)土(tu)前在工(gong)字(zi)钢(gang)(gang)(gang)(gang)(gang)背后回填土(tu)或碎(sui)石，在二(er)(er)期(qi)(qi)(qi)(qi)槽(cao)(cao)(cao)段(duan)(duan)(duan)成(cheng)槽(cao)(cao)(cao)结束后用钢(gang)(gang)(gang)(gang)(gang)刷(shua)进(jin)行接(jie)头刷(shua)壁处(chu)理。吊放二(er)(er)期(qi)(qi)(qi)(qi)钢(gang)(gang)(gang)(gang)(gang)筋(jin)(jin)笼端头向内(nei)收(shou)15mm，便于(yu)二(er)(er)期(qi)(qi)(qi)(qi)槽(cao)(cao)(cao)段(duan)(duan)(duan)与一(yi)期(qi)(qi)(qi)(qi)槽(cao)(cao)(cao)段(duan)(duan)(duan)端头相互嵌套(tao)，形(xing)成(cheng)整(zheng)体(ti)。钢(gang)(gang)(gang)(gang)(gang)筋(jin)(jin)笼加(jia)工(gong)与吊装(zhuang)钢(gang)(gang)(gang)(gang)(gang)筋(jin)(jin)笼制作应确保钢(gang)(gang)(gang)(gang)(gang)筋(jin)(jin)的型号、间距(ju)、数量(liang)准(zhun)(zhun)确，同(tong)时预(yu)先确定(ding)浇筑(zhu)(zhu)(zhu)混(hun)凝(ning)土(tu)用导(dao)管(guan)的位(wei)置。钢(gang)(gang)(gang)(gang)(gang)筋(jin)(jin)笼的起吊、运输和吊放应根据重量(liang)选取主(zhu)、副(fu)吊设备，并进(jin)行吊点设计(ji)及加(jia)固。吊装(zhuang)过(guo)程中(zhong)不(bu)(bu)得产生不(bu)(bu)能恢(hui)复的变形(xing)，插(cha)入(ru)钢(gang)(gang)(gang)(gang)(gang)筋(jin)(jin)笼时应对(dui)准(zhun)(zhun)单元槽(cao)(cao)(cao)段(duan)(duan)(duan)中(zhong)心，垂直(zhi)而又准(zhun)(zhun)确的插(cha)入(ru)槽(cao)(cao)(cao)内(nei)。水下混(hun)凝(ning)土(tu)浇筑(zhu)(zhu)(zhu)槽(cao)(cao)(cao)段(duan)(duan)(duan)长度不(bu)(bu)大于(yu)6m时，混(hun)凝(ning)土(tu)宜(yi)采用两根导(dao)管(guan)同(tong)时浇筑(zhu)(zhu)(zhu)，槽(cao)(cao)(cao)段(duan)(duan)(duan)长度大于(yu)6m时，混(hun)凝(ning)土(tu)宜(yi)采用三根导(dao)管(guan)同(tong)时浇筑(zhu)(zhu)(zhu)。每(mei)根导(dao)管(guan)分担的浇筑(zhu)(zhu)(zhu)面(mian)积(ji)应基本均等。钢(gang)(gang)(gang)(gang)(gang)筋(jin)(jin)笼就位(wei)后应及时浇筑(zhu)(zhu)(zhu)混(hun)凝(ning)土(tu)，浇筑(zhu)(zhu)(zhu)面(mian)上升(sheng)速度不(bu)(bu)宜(yi)小(xiao)于(yu)3m/h，其施工(gong)工(gong)艺与水下灌注桩类似。山(shan)东实(shi)华机械跟管(guan)厂家供应

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