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土建施工常见问题汇总,以后再碰到同类问题就不用心慌了

发布日期:2020-01-10 作者: 点击:

一、回填土下沉


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RUGUOSHIJUNYUNCHENJIANG, YIBANMEIYOUWENTI, RUGUOCHENJIANGBUJUNYUN, DADAOYIDINGCHENGDUJIUHUIDUIFANGWUCHANSHENGYINGXIANG. LOUMIANYINCHENJIANGERCHANSHENGLIEFENG, SHUOMINGYIHENYANZHONG。


CHANGJIANYUANYIN:

1 、HUITIANTUHANSHUILVGUODA;

2 、WEIANGUIDINGFENCENGHANGSHI;


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CAIQUCUOSHI:

1 、SHIGONGQIANGENJUDANGDIDIXIASHUIWEI,CAIQUXIANGYINGDEJIANGPAISHUICUOSHI (JINGDIANJIANGSHUI、WEIMUZHISHUIFANGSHA、KENGNEIJIANGSHUIDENG); ZAIJICAOZHOUBIANSHEZHIDANGSHUIDI。

2 、KONGZHIHANSHUILIANG (FANSHAI、SASHIHUI) ,GONGDIJIANYANFANGFASHI:YONGSHOUJIANGHUITUJINWOCHENGTUAN,LIANGZHIQINGNIEJISUIWEIYI。(FANSHAI、LIANGGAN、HUANTIAN)

3 、FENCENGHANGSHI,MEICENGXUPUHOUDUBUDAYU300mm QIEZHENHANGCISHU>3 CI;

4 、PUSHEDAOLUDEJICENGXUMANPUSHIXIAO。


二、桩顶施工没达到标准


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CHANGJIANYUANYIN:

1 、ZHUANGDINGWEIYIHUOLONGQI、ZHUANGSHENDUANLIE

2 、CHENZHUANGDABUDAOSHEJIKONGZHIYAOQIU

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CAIQUCUOSHI:

1 、DINGWEIZHUNQUE,CHENZHUANGGUOCHENGZHONG,FAXIANZHUANGBUCHUIZHI,YINGJISHIJIUZHENGBAOCHISHANGXIAJIEZHUANGZAITONGYIZHOUXIANSHANG。

2、ZHUANGDINGBIAOGAORUODIYUSHEJIBIAOGAO,XIANJIANGZHUANGDINGXIUPING、ZAOMAO、YONGBI CFG ZHUANGZHUANGSHENHUNNINGTUGAOYIGEQIANGDUDENGJIDESUHUNNINGTUJIEZHUANGZHISHEJIZHUANGDINGBIAOGAO。


三、地下室渗水


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1 、防水层施工中遭到破坏(外防内贴法;保护层15mm厚1 :3 水泥砂浆保护)

2 、HUNNINGTUZHENDAOBUDAOWEI(P8 SHANGPINTONG,KANGSHENJI)

3 、SHIGONGFENGMEIYOUANGUIFANCHULI(BIJIAOCHANGJIAN)


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SHIQIANKONGZHI:ZHISHUIGANGBAN,ZHISHUIDAI;ERCIJIAOGUANQIAN,BIAOMIANZAOMAO,YALISHUICHONGXISHIGONGFENG,SHUASUSHUINIJIANG··· ···

SHIHOUKONGZHI:DUISHENLOUDIANTICHUSHENDUBUXIAOYU50mm DE“V ” XINGCAO,CHONGXIHOUYONGDULOUWANG、SHUAJS FANGSHUITULIAOCHULI,BINGYONG1:2 SHUINISHAJIANGBAOHU。


楼板管道预留洞封堵措施:

1、YINGZAICHUANGUOLOUBANDEGUANDAOANZHUANGLAOGUHOU,FANGKEJINXINGYULIUDONGDEFENGDU。

2、ZAIZHISHEDIMOQIAN,SHIXIANQINGCHUDONGKOUDELAJIJISONGSANDEHUNNINGTU,BINGYONGQINGSHUISHIRUNDONGBIJI  GUANBI。DIMOYINGJINTIELOUBANDI。

3、GUANZHUHUNNINGTUQIANXIANZAIDONGBIJIGUANBIPUMOYICENG15mm HOUDESHUINISHAJIANG,RANHOUYONGCHANRUPENGZHANG  JIDEC20 XISHIHUNNINGTUFENLIANGCIGUANZHU。DIYICIGUANZHUZHIYIBANBANHOUCHU,DAIHUNNINGTUCHUNINGHOUJINXINGDIERCIGUANZHU。

4、GUANZHUHUNNINGTUDEGUOCHENGZHONGYINGYONGGANGJINGUNJIANGHUNNINGTUZHENDAOMISHI,YIBIMIANHUNNINGTUBIAOMIANCHUXIAN  FENGWOMAMIANDEXIANXIANG,XINGCHENGSHENLOUTONGDAO。

5、GUANZHUWANDEHUNNINGTUBIAOMIANYINGAOJINLOUBAN10mm ,WAILIANGCIYONGFANGSHUISHAJIANGMOPING,GUANGEN、YINJIAOYINGMOCHENGXIAOYUANJIAOHUOBAZIPO,TIZAODONGKOUCHU,YUANJIAOYINGZUOZHIDONGKOUBIANYIWAI30-50mm 。ZUIHOUJIANGYUANJIAOYAGUANG。

6、DANGHUNNINGTUDADAOQIANGDUHOUFANGKECHAICHUDIMO。


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四、混凝土外观质量较差


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1 、刷脱模剂


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2 、MOBANJIANYONGMIFENGTIAOPINJIE;JIAOSHUISHIRUN;QINGLIMUXIE、ZAZHI

3 、ZHENDAODAOWEI ( KUAI CHAMANCHOU) ,KONGZHIXIALIAOKOUJULI(2m), FENCENGXIALIAO

4 、YUANJIANGSHOUGUANG;ZHUYIYANGHU (BOMO)



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5 、BAOHUHAOCHENGPIN!

6 、DONGJISHIGONGXUKONGZHIRUMOWENDU>5 DU


五、灰缝砂浆饱满度不合格

常见原因:

1 、QIZHUSHAJIANGDEHEYIXINGCHA,ZHIJIEYINGXIANGQITIHUIFENGDEMISHIHEBAOMANDU。

2 、GANZHUANSHANGQIANGHEQIZHUCAOZUOFANGFACUOWU,BUAN “ SANYI ” QIZHUANFAQIZHU。

3 、SHUIPINGHUIFENGSUOKOUTAIDA。


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GAISHANCUOSHI:

1 、GAISHANSHAJIANGHEYIXING,YINGJISHIDIAOZHENGSHAJIANGDECHOUDU,QIZHUBIXUTIQIAN1 TIAN-2 TIANJIAOSHUISHIRUN,HANSHUILVYIZAI10%-15% ,YANFANGGANZHUANSHANGQIANG。

2 、QIZHUSHIYAOCAIYONG “ SANYI ” QIZHUANFA( JIYIKUAIZHUAN、YICHANHUI、YIROUJI) HUO “ ERSANBAYI ” QIZHUANFADENG。

3 、YANJINPUZHANGHUIERSHIDIHUICHANSHENGKONGXUEHEBAIZHUANQIZHU,ZAOCHENGSHAJIANGBUBAOMAN。(SHUIPINGHUIFENG8~12mm )

4 、QIZHUGUOCHENGZHONGYAOQIUPUMANKOUHUI,RANHOUJINXINGGUAFENG。


六、外墙抹灰空鼓、开裂

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1、隔墙或填充墙体与混凝土交接处未按图纸和规范要求加拉结钢筋,沿交接处出现裂缝

2、JICENGCHULIBUDANGHUOWEIQINGLIGANJING,JIAOSHUIBUZU,MOHUISHAJIANGTUOSHUI,YINGXIANGZHANJIELI。

3、WEIANCAOZUOGUICHENGFENBIANMOHUI,SHAJIANGPEIZHIBUHAO,SHIYONGBUDANG。

4、DAMIANJIMOHUISHIXUSHEZHIFENGETIAO。

5、QITIMENCHUANGDONGKOULIANGCE200mm SHIQITI300mm、HEZHUANJIAOCHU450mm  SHIQITI600mm、FANWEIYINEIBUDELIUJIAOSHOUJIAYAN

6、GOUZAOZHU。

1)SHUANGMIANJIAOFENGDUFENGXI,FANGZHILOUJIANG;

2)YI5 PIBIAOZHUANWEIJISHU,XIANTUIHOUJIN。JIANGE500 SHEZHI2A6 QIEBUXIAOYU1000mm DEGANGJIN


七、模板分项工程

1 、梁高>550 时,必须间隔500mm 设置对拉螺杆

2 、 QIANGZHUMOBANFENGXIKEFENBIECAIYONGSHAJIANGHEJIAODAIFENGDUFANGZHILOUJIANG


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3 、梁支撑立管纵横向间距≤1.2m 。梁底木枋间距≤300mm。

4 、QIANGZHUCEMOCAIYONG50 ×100 BIAOZHUNMUFANGHUOCAOGANGHUOFANGGANG,JIANJU≤400 。CENGGAOGUODADEQIANGZHUBIXUSHELUOGAN,LUOGANJIANJU≤ 500 ,DIYIPAILUOGANLIDIXIAOYU200 ,ZUISHANGMIANYIPAILUOGANXIAOYU300 。

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八、脚手架分项工程

1 、脚手架必须在硬化的地面上(不得悬空),严禁搭建在松软基层上

2 、WUWANGJISAODIGAN(JUDI<200mm )、SHUIPINGJIANDAOCHENGHECHUIZHIJIANDAOCHENG,QIEYINGGAIDUIJICENGBAOHU,BIXUSHEZHILIANQIANGJIAN,ZAILIGANSHANGDIANSHANGFEIMUKUAI。(MEIDAOJIANDAOCHENGKUANDUBUYINGXIAOYU4 KUA)

3 、SHIKEZUOHAOFANGHUWANG、HULAN、TIJIAOBAN(SIDONGKOUWULINBIAN),ZHUYIJIAOSHOUJIASHANGDEHEZAI,(ZHUYIQINGLIJIAOSHOUJIASHANGDEFEIMOBAN、SANLUOTONGDENGLAJI)

4 、BIXUCHIZHENGSHANGGANG,BINGMEITIANZUOHAOANQUANJIAODI!

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九、绑扎钢筋

1 、浇灌前对柱墙采取定位筋定位,并保护好钢筋接头,以便下次焊接、套筒连接;

2 、BUNENGHUSHIGANGJINJIEDIANCHUDEDAJIEGUIFAN(ZUIXIAOMAOGU250mm ;WANGOU10d QIEBUXIAOYU75mm )

3 、SHEZHIMADENGJIN、DIANKUAI(1m*1m )

4 、GAOKONGBANGZHAXUZUOHAOFANGHUCUOSHI,XIHAOANQUANDAIDENG;

5 、DULIJICHUDIBANGANGJINBUZHI:ZHANGZAIXIA,DUANZAISHANGTIAOXINGJICHUDIBANGANGJINBUZHI:ZHANGZAISHANG,DUANZAIXIA(TONGBAN)

6 、ZHUJIN(DIANZHAYALIHANФ14 ~25mm ;LUOWENLIANJIE>=25 )LIANGJIN(SHANGUANGDUIHANФ14 ~25mm ;LUOWENLIANJIE>=25 )

ZHU:HANJIEJIBENSHANGTAOTAILE,YINWEIHANJIEHUIDAOZHIGANGJINDECUIXINGZENGJIA,YOUKENENGZAIJIETOUCHUCUIDUAN。


十、预埋件错位

1 、柱中心线采用小钉固定,以便拉线;

2 、ANZHUANGLUOSHUANQIANCHAOCEBIAOGAO,KONGZHIGAODU。

3 、LUOSHUANANZHUANGWANCHENG,JISHURENYUANXIANCHANGXIAOHECHICUN39

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