Method for crossing cavities in roadway tunneling
The invention discloses a method for crossing cavities in roadway tunneling, and belongs to the field of roadway tunneling protection. The method includes the specific steps that when roadway tunneling encounters a cavity, a roadway is closed in time, and a ventilator is adopted for ventilation unti...
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| creator | ZHANG GENZHU LI HONGTAO SUO HAOYU JI ZHIQIANG DONG FEI PEI XIAOJIAN LI XIAOYU ZHANG BINGBING YUN KAIYUE SU SAI XU JINHAI SHI QINBIN YAN JINFENG WANG GAOFENG |
| description | The invention discloses a method for crossing cavities in roadway tunneling, and belongs to the field of roadway tunneling protection. The method includes the specific steps that when roadway tunneling encounters a cavity, a roadway is closed in time, and a ventilator is adopted for ventilation until harmful gas is discharged; a plurality of sets of shed frames are erected in the tunneled roadway in advance; filling bags, metal nets and wood boards are sequentially laid on the shed frames from top to bottom, and the width of each filling bag is regarded as a construction stage; after laying is completed, the shed frames support the wood boards to be used as a temporary support, and filling bags, metal nets and wood boards of the next stage are laid; a grouting pump is used for injecting Ruimi materials into the filling bags to form a roadway periphery, and when the filled materials are solidified, filling pipes between the filling bags are used for injecting foamed cement into the peripheries of the filling b |
| format | Patent |
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| language | chi ; eng |
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| subjects | EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS SHAFTS TUNNELS |
| title | Method for crossing cavities in roadway tunneling |
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