{"title":"论电子雷管精准爆破在下穿西黄庄村隧道中的应用","authors":"周 远超, 李 庆刚","doi":"10.18686/gyjs.v1i1.42","DOIUrl":null,"url":null,"abstract":"京张高铁西黄庄隧道位于河北省怀来县鸡鸣驿乡西黄庄村附近,全长4880m,设计时速350Km/h。于DK133+300~DK133+600之间下穿西黄庄村,下穿村庄长度300m,最小埋深约45m。隧道埋深较浅,且地表建筑物密集,多为民用砖砌房屋、土坯房等危旧房屋,年代久远,地基不稳,抗震性能较差。隧道设计围岩级别为IV级围岩,掌子面围岩抗压强度在45~60Mpa之间,采用非爆破开挖功效太低而且费用较高,由于工期压力大,为提高施工效率采用数码电子雷管精准爆破工艺。较传统非电毫秒雷管爆破很大程度减少了地表振动,将振动控制在规范允许范围之内,提高了施工效率。","PeriodicalId":70024,"journal":{"name":"工业技术","volume":"68 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2019-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"论电子雷管精准爆破在下穿西黄庄村隧道中的应用\",\"authors\":\"周 远超, 李 庆刚\",\"doi\":\"10.18686/gyjs.v1i1.42\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"京张高铁西黄庄隧道位于河北省怀来县鸡鸣驿乡西黄庄村附近,全长4880m,设计时速350Km/h。于DK133+300~DK133+600之间下穿西黄庄村,下穿村庄长度300m,最小埋深约45m。隧道埋深较浅,且地表建筑物密集,多为民用砖砌房屋、土坯房等危旧房屋,年代久远,地基不稳,抗震性能较差。隧道设计围岩级别为IV级围岩,掌子面围岩抗压强度在45~60Mpa之间,采用非爆破开挖功效太低而且费用较高,由于工期压力大,为提高施工效率采用数码电子雷管精准爆破工艺。较传统非电毫秒雷管爆破很大程度减少了地表振动,将振动控制在规范允许范围之内,提高了施工效率。\",\"PeriodicalId\":70024,\"journal\":{\"name\":\"工业技术\",\"volume\":\"68 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2019-02-26\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"工业技术\",\"FirstCategoryId\":\"1087\",\"ListUrlMain\":\"https://doi.org/10.18686/gyjs.v1i1.42\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"工业技术","FirstCategoryId":"1087","ListUrlMain":"https://doi.org/10.18686/gyjs.v1i1.42","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
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