| 用地球物理技术对隧道控制爆破的监测与反馈 |
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| 引用本文： | 钟世航.用地球物理技术对隧道控制爆破的监测与反馈[J].物探与化探,2005,29(1):84-87,92. |
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| 作者姓名： | 钟世航 |
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| 作者单位： | 铁道部科学研究院,北京,100081 |
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| 摘 要： | 招宝山公路隧道为大跨度并行超小净距的隧道,两隧道的净距仅为规范规定的1/7~1/10,保护两隧道间夹岩体成为关键技术。采用控制爆破保护岩体是主要措施之一。作者采用声波测量、陆地声纳等测量岩体受爆破破坏的深度及破坏情况,并监测质点振动速度来控制爆破的振动,还通过应变、位移和压力等量测的资料来监视隧道的安全,以选择和判定控制爆破的施工方案、施工顺序、爆破参数。工程获得成功,带来较大的经济效益。
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| 关 键 词： | 隧道 控制爆破 监测 反馈 地球物理技术 |
| 文章编号： | 1000-8918(2005)01-0084-04 |
| 收稿时间： | 2003-12-15 |
THE APPLICATION OF GEOPHYSICAL TECHNIQUE TO SUPERVISING CONTROLED BLAST IN A TUNNEL |
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| ZHONG Shi-Hang.THE APPLICATION OF GEOPHYSICAL TECHNIQUE TO SUPERVISING CONTROLED BLAST IN A TUNNEL[J].Geophysical and Geochemical Exploration,2005,29(1):84-87,92. |
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| Authors: | ZHONG Shi-Hang |
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| Institution: | China Academy of Railway Sciences, Beijing 100081, China |
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| Abstract: | In the construction of Ningbo Bridge, Zhaobaoshan highway tunnels were designed as twin tunnels with large span and excessively small interval of 4 m, only 1/7-1/10 of ordinance in the norm. A series of measures should be adopted for the safety of tunnels. One of the crucial measures is the protection of the rock mass between the two tunnels, which includes the utilization of controlled blast to protect rock mass. The author used such techniques as sonic wave measurement, Landsonar method and vibration velocity measurement to measure the depth and condition of rock mass under blasting. In addition, the displacement, the strain and the pressure of the tunnels and the shotcreting or the lining were also measured to inspect the safety of the tunnels. With the help of the measuring data, the construction plan, construction procedures and blasting parameters were determined. The engineering is successful and the economic benefits are obvious. |
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| Keywords: | tunnel supervision controlled blast geophysical technique mountain static correction stack |
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