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确定环形人工基础接地体尺寸的几条原则

作者:        发布日期:2018-09-30        点击量:224

YI、ZAIXIANGTONGJIEMIAN(JIZAITONGYIZHANGDUXIA,SUOXIAOHAODEGANGCAIZHONGLIANGXIANGTONG)XIA,BIANGANGDEBIAOMIANJIZONGSHIDAYUYUANGANGDE,SUOYI,JIANYIYOUXIANXUANYONGBIANGANG,KEJIESHENGGANGCAI;  

彩70app ER、ZAIJIEMIANJIZONGHEXIANGDENGZHIXIA,DUOGENYUANGANGDEBIAOMIANJIZONGSHIDAYUYIGENDE,SUOYI,ZAIMANZUSUOYAOQIUDEBIAOMIANJIDEQIANTIXIA,XUANYONGDUOGENHUOYIGENYUANGANG;  

彩70app SAN、YUANGANGZHIJINGXUANYONG8、10、12mmSANZHONGGUIGE,XUANYONGDAYUφ12mmYUANGANGYISHILANGFEICAILIAO,ERSHISHIGONGSHIBUYIYUWANQU;  

SI、HUNNINGTUDIANZULVQU100Ω·m,ZHEIYANG,HUNNINGTUNEIGANGJINTIYOUXIAOZHANGDUWEI2√P=20m,JICONGYINXIAXIANLIANJIEDIANKAISHI,SANLIUZUOYONGANGEFANGXIANG20mKAOLV;  

彩70app WU、ZHOUZHANG≥60m,AN60mKAOLV,SHESANGENYINXIAXIAN,CISHIKc=0.44,LINGWAIHAIYOU56%DELEIDIANLIUCONGLINGLIANGGENYINXIAXIANLIUZOU,MEIGENYINXIAXIANGEZHAN28%。SHEZHEI28%CONGLIANGGEFANGXIANGLIUZOU,MEIYIFANGXIANGLIUZOU14%。YINCI,YUDIYIGENYINXIAXIANLIANJIEDE40mZHANGJIEDITI(YIGEFANGXIANG20m,LIANGGEFANGXIANGGONGJI40m),GONGJILIUZOUZONGDIANLIUDE(0.44+0.14+0.14=0.72)72%,JITIAOWENSHANGYIDUANSUOGUIDINGDE4.24K2cHE1.89K2cZHONGDEK2cDENGYU0.72。  

LIU、≥40mZHI〈60mZHOUZHANGSHIAN40mZHANGKAOLV,KcDENGYU1,JIAN40mZHANGLIUZOUQUANBULEIDIANLIUKAOLV。  

彩70app QI、<40mZHOUZHANGSHIWUFAYUXIANDINGCHUGUIGEHECHICUN,ZHINENGANKc=1YOUSHEJIZHEGENJUJUTIZHANGDUJISUAN,BINGANYISHANGYUANZEXUANYONG。  

GENJUYISHANGYUANZESUOJISUANDEJIEGUOLIEYUBIAO3.4。  

ZHENGGEJIANZHUWUDECAOXING、BANXING、KUAIXINGJICHUDEGANGJINBIAOMIANJIZONGSHINENGMANZUDUIGANGJINBIAOMIANJIDEYAOQIU。  

彩70app HUNNINGTUNEIDEGANGJINJIEBANGZHAZUOWEIDIANQILIANJIE,DANGLEIDIANLIUTONGGUOSHI,ZAILIANJIECHUSHIFOUKENENGSUICIERFASHENGHUNNINGTUDEBAOZHAXINGZHALIE。WEILECHENGQINGZHEIYIWENTI,RUISHIGAOYAWENTIYANJIUWEIYUANHUIJINXINGGUOYANJIU,RENWEIGANGJINZHIJIANDEPUTONGJINSHUBANGSILIANJIEDUIFANGLEIBAOHUSHUOLAISHIWANQUANZUGOUDE,ERQIEQUEZHENG,ZAIRENHEQINGKUANGXIA,ZAIZHEIYANGLIANJIEFUJINDEHUNNINGTUJUEBUHUISUILIE,SHENZHICHUXIANLEIDIANLIUBENSHENBABANGZAIYIQIDEGANGJINHANJIEQILAI,RUDIANHANYIYANG,TONGGUODIANLIUYIHOU,YIGEZHEIYANGDELIANJIEDIANDEDIANZUXIAJIANGWEIJIGEHAOOUDESHUZHI。  

彩70app RIBENDUISHIYANGZUOGUOSHIYAN,QIJIEGUOSHI,YOUYIGESHIYANGDEYIGEBANGZHADIANTONGGUO48kAHELIANGGESHIYANGDEGEYIGEBANGZHADIANTONGGUO61kAHOU,CAIYONGBANGZHALIANJIEDEZHEISANGEGANGJINHUNNINGTUSHIYANGCAIZAOSHOUQINGDULIEFENGDEPOHUAI。ZHEISHUOMINGYIGEBANGZHADIANKEYIANQUANDILIUGUORUOGANWANANPEIDECHONGJIDIANLIU。  

YISHANGSHIYANKEYIRENWEI,ZAILEIDIANLIULIUGUODELUJINGSHANG,YOUYIXIEBINGLIANDEBANGZHADIANSHI,JIUHUISHIANQUANDE。  

XUDUOGUOJIADEJIANZHUWUFANGLEIGUIFANHEBIAOZHUNJUNYUNXULIYONGBANGZHALIANJIEDEGANGJINTIZUOWEIFANGLEIZHUANGZHI。  

彩70app 3.3.6DIYIKUAN,GENJUIECI024YI1FANGLEIBIAOZHUNDI2.3.3.2KUANDAOCHUBENTIAODEGUIDING,JIANBENGUIFANDI3.2.4TIAOLIUKUANDESHUOMING。  

彩70app DANGHUANXINGJIEDITISUOBAOWEIDEMIANJIADEPINGJUNJIHEBANJINGr=√A/π=5mHEP≤300Ω·mSHI,QIGONGPINJIEDIDIANZURYUEWEIRYUEWEIR=2p/3d=0.067(Ω)。  

DIERKUAN,GENJUBENTIAOYIKUANDEGUIDING,DANG√A/π≥5SHI,DEA≥78.54m2,QUZHENGSHU,GUDINGWEIADAYUHUODENGYU80m2。  

彩70app DISANKUAN,BENKUANXIGENJUSHIJIXUYAOHESHIJIANJINGYANBUCHONGZENGJIADE。DI1XIANGBAOZHENGDIMIANDIANWEIFENBUJUNYUN。DI2XIANGBAOZHENGLEIDIANLIUJIAOJUNYUNFENPEIDAOLEIJIDIANFUJINZUOWEIYINXIAXIANDEJINSHUDAOTIHEGEJIEDITISHANG。DI3XIANGBAOZHENGHUNNINGTUJICHUDEANQUANXING。  

彩70app DI1XIANGZHONG“JUEDADUOSHUZHUZIJICHU”SHIZHIZAIYIXIEQINGKUANGXIASHAOSHUZHUZIJICHUNANYUZHEITONGDEQINGKUANG,RUCHEJIANLIANGDUANZAIYAOJINHUNNINGTUDUANWUJIAZHONGJIAN(BUSHIWUJIADELIANGTOU)DEZHUZIJICHU,JIDANGFENGZHUJICHU。  

彩70app DIZHONGHUNNINGTUDEQISHIWENDUQU30℃,ZUIGAOYUNXUWENDUQU99℃。HUNNINGTUDEHANSHUILIANGANHUNNINGTUZHONGLIANGDE5%JISUAN。BIANZHANG1mDEJICHUHUNNINGTULIFANGTIDERERONGLIANGQ1WEI:  

Q1(J/m3)=(C1SHI0.05C2)M1·ΔT”(3.13)  

彩70app SHIZHONGC1YIYIHUNNINGTUDEBIRERONG(J/kg·k),QU8.82×102;  

彩70app C2——SHUIDEBIRERONG(J/kg·K),QU4.19×103:  

M1YI—BIANZHANG1MDEHUNNINGTULIFANGTIDEZHONGLIANG(kg/m3),QU  

2.1×103;  

彩70app ΔT——WENDUCHA,DUIYUQISHIWENDUWEI30℃HEZUIZHONGWENDUWEI99℃  

DECHANGHE,ΔT=69℃。  

JIANGYISHANGYOUGUANSHUZHIDAIRU(3.13)SHIDEQ1=1.58×108J/m3。  

彩70app LEIDIANLIUCONGGANGJINBIAOMIAN(SHEGANGJINYUHUNNINGTUDEJIECHUBIAOMIANJIWEIlm2)LIURUHUNNINGTU(HUNNINGSHANGZHEHECHENGBIANZHANG1mDELIFANGTI)SHISUOCHANSHENGDERELIANGANXIASHIJISUAN:  

彩70app Q2=Fi2dt=pFi2dt(3.14)  

彩70app SHIZHONGp——HUNNINGTUZAI30~99℃SHIDEPINGJUNDIANZULV,QU120Ω·m。  

SHIQ2=Q1,DEpFi2dt=1.58×108,SUOYIpFi2dt=1.58×108/120=1.32  

×106J/Ω·m2=1.32MJ/Ω·m2  

彩70app SHANGSHIDEJILIANGDANWEIMJ/Ω·m2SHUOMINGLEIDIANLIUCONG1m2GANGJINBIAOMIANJILIURUHUNNINGTUSUOCHANSHENGDEDANWEINENGLIANGYINGBUDAYU1.32MI/Ω。  

彩70app CONGBIAO3.1DEDIER、SANLEIFANGLEIJIANZHUWUDEDANWEINENGLIANG(JIFi2dt)FENBIEWEI5.6MJ/ΩHE2.5MJ/Ω。  

YOUYUDANWEINENGLIANGYULEIDIANLIUDEPINGFANGCHENGZHENGBI,YIJIYUFENLIUXISHUKcDEPINGFANGCHENGZHENGBI。GENJUBENGUIFANTU3.3.4DE(c)QUKc=0.44,YINCI,FENLIUHOULIUJINGYIGENZHUZIDELEIDIANLIU,TASUOCHANSHENGDEDANWEINENGLIANGFENBIEWEI5.6×(0.44)2=1.084MJ/ΩHE2.5×(0.44)2=0.484MJ/Ω。  

JIANGZHEILIANGGESHUZHIFENBIECHUYIFi2dt=1.32MJ/Ω·m2,ZEXIANGYINGSUOXUDEJICHUGANGJINBIAOMIANJIFENBIEWEI1.048/1.32=0.82m2HE0.484×1.32=0.37m2。  

GUANYUJICHUGANGJINBIAOMIANJIDEJISUAN,XIANJUYIGESHIJISHEJILIZI。TU3.4WEICHEJIANYIGEZHUZIJICHUDEJIEGOUSHEJI。  

Ф10GANGJINZHOUZHANGWEI0.01πm,MEIGENZHANG2m,MEIGENDEBIAOMIANJIWEI0.02πm2,GONGJI2000/200=10GEN,GUФ10GANGJINDEZONGBIAOMIANJIWEI0.2πrn2。  

Ф2GANGJINZHOUZHANGWEI0.012πm,MEIGENZHANG3.2m,MEIGENDEBIAOMIANJIWEI3.2×0.012π=0.0384πm2,GONGJI3200/200=16GEN,GUФ2GANGJINDEZONGBIAOMIANJIWEI16×0.0384π=0.6144πm2。  

彩70app YINCI,JICHUGANGJINDEZONGBIAOMIANJIWEISHANGSHULIANGXIANGZHIHE,JI0.2π+0.6144π=0.8144π=2.56m2。  

彩70app 3.3.7JIANZHUWUNEIDEZHUYAOJINSHUWUBUBAOKUOHUNNINGSHANGGOUJIANNEIDEGANGJIN。  

彩70app 3.3.8DIYIKUAN,YIGUIFAN(3.2.1YI1)SHIHE(3.2.1YI2)SHIWEIJIBENSHI,GENJUBIAO3.1HEBIAO3.2,DIERLEIFANGLEIJIANZHUWUHEDIYILEIFANGLEIJIANZHUWUDELEIDIANLIUFUZHIZHIBIWEI0.75,JI150/200=0.75、37.5/50=0.75。YINCI,YIJIBENSHICHENGSHANG0.75HEK2ZHIZEDAOCHUGUIFAN(3.3.8YI1)SHIHE(3.3.8YI2)SHI。  

KcZHIANGUIFANTU3.3.4QUEDING,TAYINZIIECI024YI1FANGLEIBIAOZHUNDETU3、TU4、TU5。KcWEIKAOLVFENLIUZUOYONGERYINRENDEXISHU,YOUYUYINXIAXIANGENSHUBUTONGJIEFABUTONGERCAIYONGBUTONGDESHUZHI。IECDEKcZHISHIYONGYUYINXIAXIANJIANJU20m。BENGUIFANDIERLEIHEDISANLEIFANGLEIJIANZHUWUDEYINXIAXIANJIANJUFENBIEBUTAIYU18mHE25m,SUOYI,JIANGIECDEKcZHIYONGYUDIERLEIFANGLEIJIANZHUWUJIANGHUISHIGENGANQUAN。ERYONGYUDISANLEIZEKcZHIPIANXIAOXIE。DANZAISHEJISHIYINXIAXIANJIANJUSHOUJIANZHUTIAOJIANXIANZHI,SHIJISHANG,YINXIAXIANWENJUTONGCHANGDOUXIAOYU25m,CIWAI,WUIECDUIKcZHIDETUIDAOCAILIAO,WUFATUISUANCHU25mJIANJUSHIDEKcZHI。YINCI,DISANLEIFANGLEIJIANZHUWUDERENZHIYUDIERLEIDEYIYANG,YECAIYONGIECDEKcZHI。  

彩70app DIERKUAN,GUIFAN(3.3.8YI3)SHIWEI(3.3.8YI2)SHIZHONGDEDIANGANYAJIANGFENLIANGBUFEN。  

“DANGLIYONGJIANZHUWUDEGANGJINHUOGANGJIEGOUZUOWEIYINXIAXIAN,TONGSHIJIANZHUWUDEDABUFENGANGJIN、GANGJIEGOUDENGJINSHUWUYUBEILIYONGDEBUFENLIANCHENGZHENGTISHI,JINSHUWUHUOXIANLUYUYINXIAXIANZHIJIANDEJULIKEBUSHOUXIANZHI”,ZHEIDUANXIGENJUIECI024—FANGLEIBIAOZHUNDEYOUGUANGUIDINGBUCHONGDE,JIANBENGUIFANDI3.1.2TIAODESHUOMING。  

彩70app DISIKUAN,ZHUANQIANGDEJICHUANQIANGDUWEIKONGQIJICHUANQIANGDUDE1/2YUIECI024—1FANGLEIBIAOZHUNDEBIAO9YIZHI,DANGUIDINGHUNNINGTUQIANGDEJICHUANQIANGDUYUKONGQIJICHUANQIANGDUXIANGTONGXICANKAODEGUODIANGONGZAZHI(etz)1986NIAN107JUANDI1QI《JIANZHUCAILIAODUIQUEDINGANQUANJULIDEYINGXIANG》YIWEN,ZAIGAIWENXIANZHONGTIDAO:“HUNNINGTUDECHONGJIJICHUANDIANYAYUEXIANGDANGYUKONGQIDE,SUOYI,HUNNINGTUDEHOUDUKEANTONGYANGDEKONGQIHOUDUKANDAI”;ZAIJIESHUYUZHONGZHICHU:“TONGCHANG,JIANZHUCAILIAODECHONGJIDIANYAQIANGDUBIKONGQIDEXIAO(ZHIDUOXIAO1/2)。ZHIYOUHUNNINGSHANGDEJICHUANQIANGDUYUKONGQIDEXIANGDENG。SHANGWEIFAXIANYOUJIEDIANQIANGDUBIKONGQIGAODEJIANZHUCAILIAO”。  

彩70app DIWUKUAN,QIANBANDUANDELIYOUCANJIANBENGUIFANDI3.2.4TIAOBAKUANDESHUOMING。  

彩70app DANGBIANYAQIFUJINDEJIANZHUWUFANGLEIZHUANGZHIJIESHOULEISHANSHI,JIEDIZHUANGZHIDIANWEISHENGGAO,BIANYAQIWAIQIAODIANWEIYESHENGGAO。YOUYUBIANYAQIGAOYACEGEXIANGRAOZUSHIXIANGLIANDE,DUIWAIQIAODELEIJIGAODIANWEISHUOLAI,KEKANZUOCHUYUTONGYIDIDIANWEI,WAIQIAODEGAODIANWEIKENENGJICHUANGAOYARAOZUDEJUEYUAN,YINCI,YINGZAIGAOYACEZHUANGSHEBILEIQI。DANGBILEIQIFANJICHUANSHI,GAOYARAOZUZECHUYUYUWAIQIAOXIANGJINDEDIANWEI,GAOYARAOZUDEDAOBAOHU。LINGYIFANGMIAN,YOUYUBIANYAQIDIYARAOZUDEZHONGXINDIANYUWAIQIAOZAIDIANQISHANGSHILIANJIEZAIYIQIDE,DANGWAIQIAODIANWEISHENGGAOSHI,GAIDIANWEIJIADAODIYARAOZUSHANG,DIYARAOZUYOUDIANLIULIUGUO,BINGTONGGUOBIANYAQIRAOZUDEDIANCIGANYINGSHIGAOYACEKENENGCHANSHENGWEIXIANDEGAODIANWEI,RUOZAIDIYACEZHUANGSHEBILEIQI,DANGWAIQIAOCHUXIANWEIXIANDEGAODIANWEISHIDIYABILEIQIDONGZUOFANGDIAN,DABUFENLEIDIANLIUJINGBILEIQILIUGUO,YINCI,BAOHULEGAOYARAOZU。  

3.3.9DIERKUANDI1XIANG,JIANDI3.2.3TIAODIYIKUANDESHUOMING。  

彩70app DISANKUANDI1XIANG,JINYAOQIUDIANLAN“MAIDIZHANGDUYINGDAYUHUODENGYU15rn”DAITIYUANGUIFANDE50m。QILIYOUWEI:YI、BENLEIJIANZHUWUBUSHIBAOZHAWEIXIANLEI,YAOQIUKEDIXIE;ER、YUAN50mMAIDIDIANLANDEYAOQIUBUHELI,CANJIANBENGUIFANDI3.2.3TIAODIYIKUANDESHUOMING。  

彩70app DISIKUAN,JIAKONGJINSHUGUANDAOZAIRUHUCHUYUFANGLEIJIEDIXIANGLIANHUODUZIJIEDI,DANGLEIZHIJIQISHANG,YINRUWUNEIDEDIANWEI,YULEIZHIJIYUWUDINGJIESHANQIXIANGSI。DUIBAOZHAWEIXIANLEI,JUJIANZHUWUYUE25mCHUHAIJIEDIYICI,ZAIJIASHANGFUJINGEGUANDAOZHIJIADEXIELIUZUOYONG,DUIJIANZHUWUDEANQUANGENGKEKAO。  

3.3.10YOUYUGAOBILEIZHIHEGAOCENGJIANZHUWU,ZAIQIDINGDIANYIXIADECEMIANYOUZAODAOLEIJIDEJIZAI,YINCI,XIWANGKAOLVQITAGAOCENGJIANZHUWUSHANGBUCEMIANDEBAOHU。YOUSANDIANLIYOURENWEIZHEIZHONGLEIJISHIGUSHIQINGDE。DIYI,CEJIJUYOUDUANDEJIXIANBANJING(XIYINBANJING),YEJIXIAODEGUNQIUBANJINGHr,,QIXIANGYINGDELEIDIANLIUYESHIJIAOXIAODE;DIER,GAOCENGJIANZHUWUDEJIANZHUJIEGOUTONGCHANGNENGNAISHOUZHEILEIXIAODIANLIUDECEJI;DISAN;JIANZHUWUZAOSHOUCEJISUNHUAIDEJIZAISHANGBUDUO,ZHEIDIANZHENSHIDIZHENGSHIQIANLIANGDIANDESHIZAIXING。YINCI,DUIGAOCENGJIANZHUWUSHANGBUCEMIANLEIJIDEBAOHUBUXULINGSHEZHUANMENJIESHANQI,ERLIYONGJIANZHUWUBENSHENDEGANGGOUJIA、GANGJINTIJIQITAJINSHUWU。  

JIANGCHUANGKUANGJIA、LANGAN、BIAOMIANZHUANGSHIWUDENGJIAODADEJINSHUWULIANDAOJIANZHUWUDEGANGGOUJIAHUOGANGJINTIJINXINGJIEDI,ZHEISHISHOUXIANYINGCAIQUDEFANGCEJIDEYUFANGXINGCUOSHI。  

DUIDIERLEIFANGLEIJIANZHUWU,YOUYUGUNQIUBANJINGHrGUIDINGWEI45m(JIANBENGUIFANBIAO5.2.1),SUOYI,BENTIAOSANKUANGUIDING“45mJIYISHANG”。  

SHUZHIGUANDAOJILEISIWUZAIDINGDUANHEDIDUANYUFANGLEIZHUANGZHILIANJIE,QIMUDEZAIYUDENGDIANWEI。YOUYULIANGDUANLIANJIE,SHIQIYUYINXIAXIANCHENGLEBINGLIANLUXIAN,YINCI,BIRANCANYUDAOYINYIBUFENLEIDIANLIU。