YUYINGLIGAOQIANGHUNNINGTUGUANZHUANG(JIANCHENGPHCZHUANG)，SHIZAIJINDAIGAOXINGNENGHUNNINGTU(HPC)HEYUYINGLIJISHUDEJICHUSHANGFAZHANQILAIDEHUNNINGTUYUZHIGOUJIAN，TASHIJIANSHEBUKEJICHENGGUOZHONGDIANTUIGUANGXIANGMU。PHCZHUANGSHIZHUANYEGONGCHANGLICAIYONGXIANZHANGFAYUYINGLIHELIXINCHENGXINGGONGYI，JINGGUOZHENGYAYANGHUERZHICHENGDEYIZHONGKONGXINYUANTONGTIDEDENGJIEMIANGOUJIAN，YUNWANGSHIGONGXIANCHANGHOU，TONGGUOCHUIJIHUOJINGYADEFANGFACHENRUDIXIAZUOWEIJIAN(GOU)ZHUWUDEJICHU。ZHEISHIYIZHONGXINXINGDEJIZHUANG，YOUYUTADEZHUOYUEXINGNENG，DEDAOLEJIANZHUJIERENSHIDEQINGLAI，ZAIGUOWAIFAZHANXUNSU，RIBEN、GANGAODIQUJIDONGNANYAGEGUOSHIYONGDOUHENGUANGFAN。GUANGFANYINGYONGZAIGONGYEYUMINYONGJIANZHU、QIAOLIANG、GANGKOUMATOU、SHUILIGONGCHENGDENG，ZAI..JIANSHEZHONGFAHUILEYULAIYUDADEZUOYONG。

2 PHC桩特点

(1)DANZHUANGCHENGZAILIGAO，DANWEICHENGZAILIJIAGEBIANYI。ZHUANGSHENHUNNINGTUQIANGDUDENGJIWEIC80，JUYOUGAOQIANGXINGNENG，φ600DEPHCZHUANGDEDANZHUANGYUNXUCHENGZAILIDADAO2500～3200KN。KEZUOWEIGAOCENG、**CENGJIANZHUDEJICHU。QIDANWEICHENGZAILIDEZAOJIABIYUZHIHUNNINGTUFANGZHUANGHEZUANKONGGUANZHUZHUANGDI，QIEJINWEIGANGZHUANGDE1/3～2/3，BINGJIESHENGGANGCAI。

(2) KANGWANXINGNENGHAO。PHCZHUANGXUANYONGGAOQIANGDU、DISONGCHIDEYINLUOWENGANGJINZUOWEIYUYINGLIZHUJIN，SHIZHUANGSHENJUYOUJIAOGAODEYUYAYINGLI，QIKANGWAN、KANGLIEXINGNENGLIANGHAO，PHCZHUANGYOUZHUOJUEDEGUANRUXINGNENG，NENGCHUANTOUMISHIDESHACENG，NENGSHIYINGFUZADEHUANJINGYUDILITIAOJIAN。

(3) ZHILIANGWENDINGKEKAO。YOUYUCAIYONGGONGCHANGYUZHIDESHENGCHANFANGSHI，NENGLIYONG..DEGONGYIHESHEBEI，ZHILIANGRONGYIKONGZHI，CHANPINZHILIANGRONGYI..，QIECHENGZHUANGZHILIANGJIANCEFANGBIAN。

(4) YINGYONGFANWEIGUANG。ZHUANGSHENNAIFANGFUXINGNENGHAO，GUIGEZHANGDURONGYIDIAOZHENG，SHISHEJIXUANYONGFANWEIGUANG，RONGYIBUZHUANG，DUIZHUANGDUANCHILICENGQIFUBIANHUADADEDIZHITIAOJIANSHIYINGXINGQIANG。

(5) SHIGONGSUDUKUAI，GONGQIDUAN。PHCZHUANGZAIGONGCHANGSHANGPINHUASHENGCHAN，NENGANSHIGONGYAOQIUJISHIGONGZHUANG，SHIGONGQIANQIZHUNBEISHIJIANDUAN，YIBANNENGSUODUANGONGQIYI～ERYUE。

(6) SHIGONGXIANCHANGWENMING。SHIGONGXIANCHANGWUSHASHI、SHUINI，WUNIJIANGWURAN，DUISHIGONGXIANCHANGXIAZHAIDEGONGCHENGTEBIEYOULI。　

3 施工准备

3.1 PHCZHUANGZHUANXIANGSHIGONGZUZHISHEJI

PHCZHUANGZHUANXIANGSHIGONGZUZHISHEJIZHUYAOKAOLVSHIGONGFANGFA、ZHUANGJIYUZHUANGCHUIDEXUANZEDENGER。

ZHUANGJIKEANPHCZHUANGDESHEJIZHANGDUYUSHIGONGCHENGBEN，BINGJIEHESHIJIXIANCHANGQINGKUANGXUANZE。

XUANZEZHUANGCHUISHI，BIXUCHONGFENKAOLVZHUANGDEXINGZHUANG、CHICUN、ZHONGLIANG、RUTUZHANGDU、JIEGOUXINGSHIYIJITUZHI、QIXIANGDENGTIAOJIAN，BINGZHANGWOGEZHONGCHUIDETEXING。ZHUANGCHUIDEHANGJINENGLIANGBIXUKEFUZHUANGDEGUANRUZULI，BAOKUOKEFUZHUANGJIANZULI、ZHUANGCEMOZULIHEZHUANGDEHUIDANCHANSHENGDENENGLIANGSUNSHIDENG。RUGUOZHUANGCHUIDENENGLIANGBUNENGMANZUSHANGSHUYAOQIU，ZEHUIYINQIZHUANGTOUBUDEJUBUYAQU，NANYIJIANGZHUANGSONGDAOSHEJIBIAOGAO。

SHIGONGFANGFA：GENJUDAZHUANGSHIGONGQUYUNEIDEDIZHIQINGKUANGHEJICHUJIHEXINGZHUANG，YAOHELIXUANZEDAZHUANGSHUNXU，DUIZHOUWEIJIANZHUWUCAIQUYUFANGCUOSHI。

3.2 验桩

PHCZHUANGDEZHILIANGYANSHOUXIANGMUZHUYAOYOUWAIGUANZHILIANG、CHICUNPIANCHA、TONGKANGYAQIANGDUHEKANGWANXINGNENGDENGSIXIANG。ZHIGENYANSHOUHEGEDECHENGPINZHUANGCAIKECHENZHUANG。

3.3 吊装与运输

PHCZHUANGHUNNINGTUQIANGDUYICHAOGUO80%SHICAINENGDIAOZHUANG，DIAOZHUANGYOULIANGZHONGFANGFA：DANGZHUANGZHANGDAYU13m DEPHC ZHUANGYICAIYONGZHIDIANFA，LIANGZHIDIANSHEZAILIZHUANGLIANGDUAN0.21L CHU；DANGZHUANGZHANGBUDAYU13mSHI，KECAIYONGZHIJIEJINXINGSHUIPINGQIDIAO，CAIYONGZHUANYONGDIAOGOUGOUZHUGUANZHUANGLIANGDUANNEIBIZHIJIEJINXINGSHUIPINGQIDIAO。

PHCZHUANGQIANGDUDADAO..SHIFANGKEYUNSHU，ZHUANGZAIYUNSHUGUOCHENGZHONGZHICHENGYINGMANZUDUIFANGDEYAOQIU，BINGQIEYAOBANGZHALAOGU。

PHCZHUANGDUIFANGCHANGDIYAOJIANSHIPINGZHENG，QIE..XIACENGYAOZAILIANGZHIDIANXIAFANGDIANMU，QIEDIANMUZHICHENGDIANYINGZAITONGYIPINGMIANSHANG。BENGONGCHENGPHC ZHUANGDEDUIFANGCENGSHUBUDECHAOGUOSICENG。

PHC ZHUANGDEDIAOZHUANG、YUNSHUJIDUIFANGGUOCHENGZHONGYINGQINGQIQINGFANG，YINGBIMIANZHENDONG、PENGZHUANG、GUNLUO。

4 PHC ZHUANGCHENZHUANGSHIGONG

4.1 施工顺序

CHENZHUANGSHIGONGSHUNXUYIBANYICAIYONGXIANZHANGZHUANGHOUDUANZHUANG，XIANDAJINGHOUXIAOJINGDEYUANZE，ZIZHONGJIANFENLIANGBIANDUICHENGQIANJIN， HUOZIZHONGJIANXIANGSIZHOUJINXING。

4.2 测放桩位

CEFANGDEZHUANGWEIJINGCELIANGJIANLIFUCEWUWUHOUFANGKEJINXINGCHENZHUANG，BINGQIEMEITIANSHIGONGQIANYAOJIANCHAJIJIANGSHIDADEZHUANGWEIYULINZHUANGZHIJIANDECHICUNSHIFOUZHENGQUE。WEIBIANYUSONGZHUANGGAODUKONGZHISHEYIDINGSHULIANGDESHUIZHUNDIAN。

预应力高强混凝土管桩

4.3 桩机就位

JIANCHAZHUANGJI，..SHEBEIZHENGCHANGYUNZHUANHOUYIDONGSHEBEIJIUWEI、DUIZHONG、DIAOZHI。

4.4 插桩

SHOUXIANYONGDIAOCHEQUZHUANG，QIDIAOQIANZAIZHUANGSHENSHANGHUACHUYIMIWEIDANWEIDEZHANGDUBIAOJIBINGJIANGKAIKOUZHUANGJIANHANJIEDAODIZHUANGSHANG（DUANZHUANGWUZHUANGJIAN），QIDIAOZHIDIANYIZAIZHUANGDUAN（WUZHUANGJIAN）0.3L CHU；JIANGZHUANGDIAOQIHOU，HUANHUANDEJIANGZHUANGYIDUANSONGRUZHUANGMAOZHONG，DUIWEIZHUNQUEHOU，ZAIYONGLIANGTAIJINGWEIYI（ZHOUXIANHUXIANGCHUIZHI）SHUANGXIANGDIAOZHENGZHUANGDECHUIZHIDU，TONGGUOZHUANGJIDAOJIADEXUANZHUAN、HUADONGJITINGLIUJINXINGDIAOZHENG；CHARUSHIDECHUIZHIDUPIANCHABUDECHAOGUO0.5％，..WEIZHIJICHUIZHIDUFUHEYAOQIUHOUXIANLIYONGZHUANGCHUIDEZIZHONGJIANGZHUANGYARUTUZHONG。

4.5 锤击沉桩

YINDICENGJIAORUAN，CHUDASHIKENENGXIACHENLIANGJIAODA，YIDICHUIQINGDA，SUIZHECHENZHUANGJIASHEN，CHENSUJIANMAN，QICHUIGAODUKEJIANZENG。ZAIZHENGGEDAZHUANGGUOCHENGZHONG，YAOSHIZHUANGCHUI、ZHUANGMAO、ZHUANGSHENJINLIANGBAOCHIZAITONGYIZHOUXIANSHANG。BIYAOSHIYINGJIANGZHUANGCHUIJIZHUANGJIADAOGANFANGXIANGANZHUANGSHENFANGXIANGDIAOZHENG。YAOZHUYIJINLIANGBUSHIGUANZHUANGSHOUDAOPIANXINCHUIDA，YIMIANGUANZHUANGWANNIUPOHUAI。DAZHUANGJIAONANXIACHENSHI，YAOJIANCHALUOCHUIYOUWUQINGXIEPIANXIN，TEBIESHIYAOJIANCHAZHUANGDIANZHUANGMAOSHIFOUHESHI。RUGUOBUHESHI，XUGENGHUANHUOBUCHONGRUANDIAN。MEIGENZHUANGYILIANXUYICIDAWAN，BUYAOZHONGDUAN，YIMIANNANYIJIXUDAXIA。

4.6 接桩施工

JIEZHUANGCAIYONGDUANBANSHIHANJIEJIETOU。DANGXIAJIEZHUANGDEZHUANGTOUJUDIMIAN0.6～0.8m ZUOYOUSHI，KAISHIJINXINGJIEZHUANG。XIANJIANGHANJIEMIANQINGSHUAGANJING，ZAIZAIXIAJIEZHUANGTOUSHANGANZHUANGDAOXIANGGUYINDAOJIUWEI，DANGPHCZHUANGDUIHAOHOU，DUICHENGDIANHAN4～6DIANJIAYIGUDING，RANHOUCHAICHUDAOXIANGGU。YOU2MINGDIANHANGONGSHOUGONGDUICHENGSHIHAN，HANJIECENGSHUYINGDAYUDENGYUERCENG，NEICENGHANZHABIXUQINGLIGANJINGHOUZAIHANXIAYICENG，YAO..HANFENGBAOMANLIANXU。HANTIAOCAIYONGJ422 HANTIAO，HANTIAOZHIJINGWEIφ4.0mm、φ3.2mm。HANJIEJUTICAOZUOYUYAOQIUANFGJ94-94ZHONGDEYOUGUANTIAOKUANZHIGUIDINGZHIXING。HANHAODEZHUANGJIETOUYINGZIRANLENGQUE3～8 FENZHONGHOUFANGKECHUIJICHENZHUANG。

4.7 ZAICHENZHUANGGUOCHENGZHONGPENGDAOXIALIEQINGKUANGYINGZANTINGDAZHUANG，CHAMINGYUANYINHOUZAIANCHULIFANGANSHIGONG：

(1) CHENZHUANGGUOCHENGZHONGZHUANGDEGUANRUDUFASHENGTUBIAN；

(2) ZHUANGTOUHUNNINGTUBOLUO、POSUI；

(3) ZHUANGSHENTURANQINGXIE、PAOWEI；

(4) DIMIANMINGXIANLONGQI、LINZHUANGSHANGFUHUOZHUANGWEISHUIPINGYIDONGGUODA；

(5) GUANRUDUHUOCHUIJISHUYUSHIYANCHENGGUOMINGXIANBUFU；

(6) ZHUANGSHENHUIDANQUXIANBUGUIZE。

5 成果记录整理

DAZHUANGGUOCHENGZHONGYINGXIANGXIJILUGEZHONGZUOYESHIJIAN，MEIDARU0.5～1mDECHUIJISHU、ZHUANGWEIZHIDEPIANXIE、..HOU10JIDEPINGJUNGUANRUDUHE..HOU1mDECHUIJISHUDENG。ANGUIFANYAOQIUZHENGLICHENGBIAOBINGJINXINGZHILIANGPINGJIA，BIYAOSHIJINXINGJINGZAIYUDONGZAISHIYAN。

6 PHCGUANZHUANGYUJICHUDIBANLIANJIEJISHU

WEIYOUXIAOFANGZHIJICHUSHANGFUBING..JICHUHEZHUANGJIDEZHENGTIXIETONGGONGZUO，PHCZHUANGBIXUSHENRUJICHUBUSHAOYU10cm，TONGSHIZAIJICHUGANGJINBANGZHAQIAN，JIANGPHCZHUANGDINGBUDE60cmGAODUNEIZHONGJIANKONGBUFENGUANRUTONG，TONGBUDIYUC40DETONG，BINGWEICHANUEAPENGZHANGJI(CHANLIANG10%)，TONGSHIYANKONGZHOUBIANSHEZHIMAOJIN。MAOJINSHENRUJICHUDIBANNEI，YUDIBANTONGGANGJIE。

7施工体会

(1) PHCZHUANGQIANGDUGAO，KANGWANXINGNENGHAO，JUYOUZHUOJUEDEGUANRUXINGNENG，SHIGONGSUDUKUAI，GONGQIDUAN。

(2)PHCZHUANGYOUYUCAIYONGYUYINGLILUOXUANJIN，KANGLIEXINGHAO，YINCICHENGZHUANGZHILIANGKEKAO，BUYISUNHUAI，SHIJISHIGONGZHONG，WUYIGENZHUANGPOLIEBAOFEI，ZHEISHIQITAYUZHIZHUANGSUOBUJUYOUDETEDIAN。

(3) SHIGONGXIANCHANGWENMING，TEBIESHIHEGONGQIDUAN、CHENGSHIHUANJINGTIAOJIANXIADEZHUANGJISHIGONG。　

(4)“ZHONGCHUIDIDA”NENGYOUXIAOJIANGDICHUIJIYINGLI。ZHUANGCHUIDUIZHUANGTOUDECHUIJISUDUYUEKUAI，ZAIZHUANGSHENSHANGCHANSHENGDEYINGLIBOQIANGDUYEYUEGAO，JIDAZHUANGYINGLIYUCHUIJISUDUCHENGZHENGBI，SUOYIWEIJIANGDICHUIJIYINGLIBINGBAOCHIJIAOHAODEGUANRUDU，CAIYONGLEJIAOZHONGDEZHUANGCHUIHEJIAODIDESUDUSHIDA，XIAOGUOLIANGHAO。

(5)ZHUANGTOUCHENDIANXIAOYINGDUICHUIJIYINGLIYEYOUZHIJIEYINGXIANG。WEIYANZHANGCHUIJIZUOYONGSHIJIAN、JIANGDICHUIJISUDU，BINGJIEYIJIANGDICHUIJIYINGLI，XUANYONGRUANHOUSHIYIDEMUZHUANGDIAN，SHOUDAOLIANGHAOXIAOGUO。

(6)XUANZEHELIDEDAZHUANGSHIGONGSHUNXU，NENGJIANXIAOZHUANGDECEXIANGWEIYI，DUIZHOUWEIJIANZHUWUBUHUIYOUDADEYINGXIANG。YINGGENJUJICHUXINGZHUANGHEZHANGYINGXIANLIHOUWAI，XIANSHENHOUQIAN，YOUZHONGXINZHUJIANWANGWAICEDUICHENGSHIGONG。