Blasting construction protection device for large-section soft rock tunnel construction
The utility model discloses a blasting construction protection device for large-section soft rock tunnel construction in the technical field of tunnel construction, which comprises a protection layer, a buffer plate and a bottom plate, a steel wire mesh layer is arranged between the protection layer...
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| creator | QIN XIANJUN SU QIONGLIN TAN CHENGCHI HUANG CHAOXI LI XIUXIAN XIONG XIAOJUN |
| description | The utility model discloses a blasting construction protection device for large-section soft rock tunnel construction in the technical field of tunnel construction, which comprises a protection layer, a buffer plate and a bottom plate, a steel wire mesh layer is arranged between the protection layer and the buffer plate, cooling balls are fixedly connected in meshes of the steel wire mesh layer, cooling liquid is filled in the cooling balls, and the bottom plate is fixedly connected with the bottom plate. A plurality of springs are arranged in the buffer plate, a plurality of supports are arranged between the buffer plate and the bottom plate, the two ends of each support are fixedly connected with the buffer plate and the bottom plate respectively, fixing blocks are fixedly connected to the lower portions of the supports, inserting holes are formed in the fixing blocks, sleeves are fixedly connected to the lower portions of the inserting holes, and fixing rods are inserted into the sleeves. The fixing rods a |
| format | Patent |
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A plurality of springs are arranged in the buffer plate, a plurality of supports are arranged between the buffer plate and the bottom plate, the two ends of each support are fixedly connected with the buffer plate and the bottom plate respectively, fixing blocks are fixedly connected to the lower portions of the supports, inserting holes are formed in the fixing blocks, sleeves are fixedly connected to the lower portions of the inserting holes, and fixing rods are inserted into the sleeves. 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A plurality of springs are arranged in the buffer plate, a plurality of supports are arranged between the buffer plate and the bottom plate, the two ends of each support are fixedly connected with the buffer plate and the bottom plate respectively, fixing blocks are fixedly connected to the lower portions of the supports, inserting holes are formed in the fixing blocks, sleeves are fixedly connected to the lower portions of the inserting holes, and fixing rods are inserted into the sleeves. 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A plurality of springs are arranged in the buffer plate, a plurality of supports are arranged between the buffer plate and the bottom plate, the two ends of each support are fixedly connected with the buffer plate and the bottom plate respectively, fixing blocks are fixedly connected to the lower portions of the supports, inserting holes are formed in the fixing blocks, sleeves are fixedly connected to the lower portions of the inserting holes, and fixing rods are inserted into the sleeves. The fixing rods a</abstract><oa>free_for_read</oa></addata></record> |
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| language | chi ; eng |
| recordid | cdi_epo_espacenet_CN219622717UU |
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| subjects | EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING SHAFTS TUNNELS |
| title | Blasting construction protection device for large-section soft rock tunnel construction |
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