高巖梁隧道Ⅲ級圍巖臺階法開挖鉆爆設計方案

中鐵五局貴廣鐵路工程指揮部第一項目部爆破設計高巖梁隧道Ⅲ級圍巖微臺階法開挖鉆爆設計方案1）地層巖性：2）水質(zhì)：洞身地下水為基巖裂隙水，受大氣降水補給，洞身基巖裂隙水含水較豐富，含3）沿線地震動參數(shù)：經(jīng)取水樣進行水質(zhì)試驗，沿線地表水絕大多數(shù)對砼及砼結構都無侵蝕性。地下中鐵五局貴廣鐵路工程指揮部第一項目部爆破設計11部仰拱橋3中鐵五局貴廣鐵路工程指揮部第一項目部爆破設計Ⅲ級圍巖階法上部開挖施工工藝流程如下圖所示4中鐵五局貴廣鐵路工程指揮部第一項目部爆破設計臺階法施工組織：在暗洞施工地質(zhì)條件變好后采用臺階法進行開挖施工，施工時下部利用簡易自制鉆爆平臺進行鉆眼及安裝錨桿、掛鋼筋網(wǎng)片和噴砼作業(yè)。鉆爆mm8m1施工時上、下部臺階鉆眼、裝藥、連線、爆破應盡量錯開一段時間，以充分發(fā)5中鐵五局貴廣鐵路工程指揮部第一項目部爆破設計連續(xù)裝藥結構示意圖集中裝藥結構示意圖6中鐵五局貴廣鐵路工程指揮部第一項目部爆破設計123456789612345789無下一循環(huán)循環(huán)開始_________________________________________________________________________________________________________________________________________________________________________________________________________________________________________7中鐵五局貴廣鐵路工程指揮部第一項目部爆破設計———Ⅲ級圍巖臺階法開挖爆破布眼圖2、掏槽眼采用斜眼掏槽，與線路方向夾角為30度，超深0.2m。3、炮眼布置根據(jù)現(xiàn)場圍巖具體情況可進行個別調(diào)整，眼底必須在同一面上，為保證爆破效果炮眼必須采用炮泥進行堵塞且周邊眼堵塞不低于4、如果在非電毫秒雷管段數(shù)有限的情況下可采用外接雷管達到分段效果。5、掏槽眼采用集中裝藥，輔助眼采用連續(xù)裝藥，周邊眼采用間隔裝藥。Ⅲ級圍巖臺階法開挖爆破布眼圖8中鐵五局貴廣鐵路工程指揮部第一項目部爆破設計———Ⅲ級圍巖臺階法①部開挖人員分工示意圖1、掏槽眼采用斜眼掏槽，與線路方向夾角為30度，超深0.2m。2、炮眼布置根據(jù)現(xiàn)場圍巖具體情況可進行個別調(diào)整，眼底必須在同一面上，為保證爆破效果炮眼必須采用炮泥進行堵塞且周邊眼堵塞長度不低于3、如果在非電毫秒雷管段數(shù)有限的情況下可采用外接雷管達到分段效果。4、掏槽眼采用集中裝藥，輔助眼采用連續(xù)裝藥，周邊眼采用間隔裝藥。5、起爆網(wǎng)絡采用族聯(lián)形式，眼內(nèi)分段，眼外“一把抓”電雷管起爆。王仁淑貴廣鐵路GGTJ-3標高巖梁隧道Ⅲ級圍巖臺階法開挖爆破布眼圖9中鐵五局貴廣鐵路工程指揮部第一項目部爆破設計———1、炮眼布置根據(jù)現(xiàn)場圍巖具體情況可進行個別調(diào)整，眼底必須在同一面上，為保證爆破效果炮眼必須采用炮泥進行堵塞且周邊眼堵塞長度不低于2、輔助眼采用連續(xù)裝藥，周邊眼采用間隔裝藥。3、起爆網(wǎng)絡采用族聯(lián)形式，眼內(nèi)分段，眼外“一把抓”電雷管起爆。Ⅲ級圍巖臺階法開挖爆破布眼圖______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________中鐵五局貴廣鐵路工程指揮部第一項目部爆破設計序號123456786413579137913構每循環(huán)爆破石方m個m發(fā)%123456789中鐵五局貴廣鐵路工程指揮部第一項目部爆破設計中鐵五局貴廣鐵路工程指揮部第一項目部爆破設計中鐵五局貴廣鐵路工程指揮部第一項目部爆破設計中鐵五局貴廣鐵路工程指揮部第一項目部爆破設計中鐵五局貴廣鐵路工程指揮部第一項目部爆破設計中鐵五局貴廣鐵路工程指揮部第一項目部爆破設計施工里程周邊眼間距E輔助眼個數(shù)掏槽眼個數(shù)/方式總裝藥量（kg）炸藥單耗kg/m3部掏槽眼鉆度/掏槽眼斜率裝藥結構裝藥量Kg裝藥集中度q（kg/m）炮泥堵塞長度起爆順序(分段)周邊眼鉆度/外插角斜率裝藥結構裝藥量Kg裝藥集中度q（kg/m）炮泥堵塞長度起爆順序(分段)______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________中鐵五局貴廣鐵路工程指揮部第一項目部爆破設計oooooooooooooooooooooo______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________中鐵五局貴廣鐵路工程指揮部第一項目部爆破設計oooooooooooooooooooooo______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________中鐵五局貴廣鐵路工程指揮部第一項目部爆破設計輔助眼（內(nèi)圈眼）o鉆孔深度/輔助眼排距/o70/8070/8070/8080/9080/9080/9080/9080/9080/9080/90裝藥結構連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥裝藥量Kg裝藥集中度q（kg/m）炮泥堵塞長度起爆順序(分段)______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________中鐵五局貴廣鐵路工程指揮部第一項目部爆破設計o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________中鐵五局貴廣鐵路工程指揮部第一項目部爆破設計oooooooooo鉆孔深度/底板眼排距連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥裝藥結構連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥裝藥量Kg裝藥集中度q（kg/m）炮泥堵塞長度起爆順序(分段)______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________中鐵五局貴廣鐵路工程指揮部第一項目部爆破設計掌子面地質(zhì)情況描述連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥炮眼布置示意圖爆破效果效果分析：未達到設計進尺，開挖巖壁面不平整，超挖嚴重，炮眼保存率較差。原因分析：周邊眼外插角過大，周邊眼裝藥量較大,掏槽眼裝藥量過大，制造凌空面時對周邊的輔助眼造成損壞解決辦法：減小周邊眼外插角，減少周邊眼裝藥量，減少掏槽眼裝藥量。附件：爆破前后照片__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________中鐵五局貴廣鐵路工程指揮部第一項目部爆破設計施工單位：隧道七隊施工里程掏槽眼周邊眼開挖方法/施工部位鉆孔深度/角度oooooo鉆孔深度/角度ooooooo設計進尺m/開周邊眼個數(shù)/間距E周邊眼抵抗線W挖面積（m2cmcm）輔助眼個數(shù)掏槽眼個數(shù)/方式總裝藥量炸藥單耗kg/m3掏槽眼斜率外插角斜率掏槽眼斜率外插角斜率裝藥結構集中裝藥集中裝藥集中裝藥集中裝藥集中裝藥集中裝藥裝藥結構炮泥堵塞長度炮泥堵塞長度起爆順序(分段)1段1段1段1段1段1段起爆順序(分段)裝藥集中度q______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________中鐵五局貴廣鐵路工程指揮部第一項目部爆破設計oooooooooooooooooooooo______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________中鐵五局貴廣鐵路工程指揮部第一項目部爆破設計oooooooooooooo鉆孔深度/角輔助眼排距/行度oooooo裝藥結構連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥裝藥集中度q（kg/m）炮泥堵塞長度起爆順序(分段)______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________中鐵五局貴廣鐵路工程指揮部第一項目部爆破設計o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________中鐵五局貴廣鐵路工程指揮部第一項目部爆破設計o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________中鐵五局貴廣鐵路工程指揮部第一項目部爆破設計連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥鉆孔深度/角度o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________中鐵五局貴廣鐵路工程指揮部第一項目部爆破設計掌子面地質(zhì)情況描述連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥炮眼布置示意圖爆破效果7、石塊塊度：無超大粒徑塊石，粒徑大小80%在爆破效果分析：爆破后圍巖地質(zhì)情況穩(wěn)定，開挖輪廓平整度較差，出現(xiàn)棱角狀，為達到設計開挖進尺，超挖嚴重。__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________掏槽眼炮泥堵塞長度炮泥堵塞長度掏槽眼炮泥堵塞長度炮泥堵塞長度掏槽眼斜率外插角斜率起爆順序(分段)1段1段1段1段1段1段起爆順序(分段)oooooo鉆孔深度/周邊眼ooooooo中鐵五局貴廣鐵路工程指揮部第一項目部爆破設計施工單位：隧道七隊施工單位：隧道七隊設計進尺m/開挖面積開挖方法/掏槽眼個數(shù)/方式總裝藥量設計進尺m/開挖面積開挖方法/掏槽眼個數(shù)/方式總裝藥量施工里程炸藥單耗kg/m3輔助眼個數(shù)施工部位施工部位部鉆孔深度/裝藥結構集中裝藥集中裝藥集中裝藥集中裝藥集中裝藥集中裝藥裝藥結構______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________中鐵五局貴廣鐵路工程指揮部第一項目部爆破設計oooooooooooooooooooooo______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________中鐵五局貴廣鐵路工程指揮部第一項目部爆破設計oooooooooooooooooooooo______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________中鐵五局貴廣鐵路工程指揮部第一項目部爆破設計oooo鉆孔深度/輔助眼排距oooooooooooooooo裝藥結構連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥裝藥集中度q（kg/m）炮泥堵塞長度起爆順序(分段)______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________中鐵五局貴廣鐵路工程指揮部第一項目部爆破設計o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________中鐵五局貴廣鐵路工程指揮部第一項目部爆破設計o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________中鐵五局貴廣鐵路工程指揮部第一項目部爆破設計oooo鉆孔深度/底板眼排距連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥掌子面地質(zhì)情況描述炮眼布置示意圖爆破效果______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________中鐵五局貴廣鐵路工程指揮部第一項目部爆破設計爆破效果分析：爆破后圍巖地質(zhì)情況穩(wěn)定，開挖輪廓線明顯，周邊輪廓有棱角，出現(xiàn)超挖情況，未達到設計爆破進尺，炮眼保存率較好。輔輔助眼有破壞作用。附件：爆破前后照片__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________掏槽眼掏槽眼斜率外插角斜率掏槽眼掏槽眼斜率外插角斜率起爆順序(分段)1段1段1段1段1段1段起爆順序(分段)炮泥堵塞長度炮泥堵塞長度oooooo鉆孔深度/周邊眼oooooo中鐵五局貴廣鐵路工程指揮部第一項目部爆破設計施工單位：隧道七隊施工單位：隧道七隊設計進尺m/開挖面積開挖方法/掏槽眼個數(shù)/方式總裝藥量設計進尺m/開挖面積開挖方法/掏槽眼個數(shù)/方式總裝藥量施工里程炸藥單耗kg/m3輔助眼個數(shù)施工部位施工部位部鉆孔深度/裝藥結構集中裝藥集中裝藥集中裝藥集中裝藥集中裝藥集中裝藥裝藥結構______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________中鐵五局貴廣鐵路工程指揮部第一項目部爆破設計oooooooooooooooooooooo______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________中鐵五局貴廣鐵路工程指揮部第一項目部爆破設計oooooooooooooooooooooo______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________中鐵五局貴廣鐵路工程指揮部第一項目部爆破設計ooooo鉆孔深度/輔助眼排距ooooooooooooooo裝藥結構連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥裝藥集中度q（kg/m）炮泥堵塞長度起爆順序(分段)______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________中鐵五局貴廣鐵路工程指揮部第一項目部爆破設計o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________中鐵五局貴廣鐵路工程指揮部第一項目部爆破設計o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________中鐵五局貴廣鐵路工程指揮部第一項目部爆破設計o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________中鐵五局貴廣鐵路工程指揮部第一項目部爆破設計鉆孔深度/底板眼排距角度（cm）裝藥結構裝藥集中度q（kg/m）炮泥堵塞長度起爆順序(分段)連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥連續(xù)裝藥掌子面地質(zhì)情況描述炮眼布置示意圖爆破效果中鐵五局貴廣鐵路工程指揮部第一項目部爆破設計爆破效果分析：爆破后圍巖地質(zhì)情況穩(wěn)定，開挖輪廓線明顯，巖壁面平整度不夠，周邊輪廓有明顯棱角，出現(xiàn)欠挖，炮眼保存率較好。原因分析：周邊眼抵抗線過大。改進措施：適當減小周邊眼抵抗線距離。附件：爆破前后照片______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________掏槽眼掏槽眼起爆順序(分段)1段1段1段1段1段1段起爆順序(分段)炮泥堵塞長度炮泥堵塞長度oooooo鉆孔深度/周邊眼ooooooo中鐵五局貴廣鐵路工程指揮部第一項目部爆破設計施工單位：隧道七隊施工單位：隧道七隊設計進尺m/開挖面積（m2）掏槽眼斜率設計進尺m/開挖面積（m2）掏槽眼斜率外插角斜率開挖方法/掏槽眼個數(shù)/方式總裝藥量施工里程輔助眼個數(shù)炸藥單耗kg/m3施工部位施工部位部鉆孔深度/裝藥結構集中裝藥集中裝藥集中裝藥集中裝藥集中裝藥集中裝藥裝藥結構______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________中鐵五局貴廣鐵路工程指揮部第一項目部爆破設計oooooooooooooooooooooo______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________中鐵五局貴廣鐵路工程指揮部第一項目部爆破設計oooooooooooooooooooooo______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________中鐵五局貴廣鐵路工程指揮部第一項目部爆破設計oooo鉆孔深度/輔助眼排距/行距裝藥結構裝藥集中度q（kg/m）炮泥堵塞長度起爆順序(分段)o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥o連續(xù)裝藥_________________________________________________________________________________________________________________________________________________________________________________________________________________________