隧道非瓦斯段爆破方案 (新)

攀枝花至大理高速公路（四川境）工程

隧道非瓦斯段爆破

专项施工方案

编 制 人：_______________ 审 核 人：_______________ 审 批 人：_______________

编制单位：攀大高速公路项目经理部 编制日期：2016年3月

攀枝花至大理（四川境）高速公路工程项目

施工技术方案（或专项施工方案）报审单

承包单位： XXXXXXXXXXX建设集团有限公司 合同号： TJ

监理单位： XXXXXXXXXXXXXX有限公司

监表05

工程名称及工程部位 隧道非瓦斯爆破专项施工方案 设计图名称 桩 号 图 号 现报上 隧道非瓦斯段爆破专项施工方案 工程的施工技术方案（或专项施工方案），请予审查、批准。 附件：非瓦斯隧道爆破专项施工方案 项目技术负责人签字 年 月 日 专业监理工程师审查意见： 专业监理工程师签名： 安全工程师签名： 年 月 日 驻地监理工程师意见： 驻地监理工程师签名： 年 月 日 总监理工程师意见： 总监理工程师签名： 年 月 日

目 录

1.1 编制依据 ···································································································· 1 1.2 编制目的 ···································································································· 1 1.3 适用范围 ···································································································· 1

1、编制依据、目的及适用范围 ·············································· 1

2、工程概况 ······································································ 1

2.1 工程简介 ···································································································· 1 2.2地形地貌····································································································· 2 2.3 地层岩性 ···································································································· 3 2.4地质构造····································································································· 6 2.5水文地质特征 ······························································································· 7 2.6 地震动参数区别 ··························································································· 8 2.7 气象特征 ···································································································· 8 2.8隧道开挖爆破的难点分析 ················································································ 9 2.9 隧道掘进爆破应达到的技术要求 ····································································· 10

3、爆破方案确定 ······························································· 11

3.1 隧道掘进爆破的弱扰动降振技术方案 ································································ 11 3.2 隧道掘进爆破总体方案 ·················································································· 12

4、上台阶掘进爆破设计 ····················································· 13

4.1 上台阶掘进爆破参数设计 ··············································································· 13 4.1.1 炮孔直径 ································································································ 13 4.1.2 单循环爆破进尺 ······················································································· 13 4.1.3 炸药单耗 ································································································ 13 4.1.4 单循环开挖爆破的炸药耗量 ········································································· 14 4.1.5 单孔装药量计算方法·················································································· 14 4.1.6 炮孔堵塞长度 ·························································································· 14 4.1.7 掏槽孔爆破参数设计·················································································· 15 4.1.8 掘进孔（底板孔）爆破参数设计 ··································································· 17