Abstract
At present, the foundation of mountain transmission lines in Fujian is mostly manually dug foundations, with a depth of up to 10–15m, and there are risks such as poisoning and suffocation in limited space operations, object blows and high falls. In order to reduce the risk in the excavation of foundation pits, the pilot use of mountain micropile foundation in Fujian area, which is a multi-pile bearing foundation with small aperture, uses mountain micro drilling rig to excavate into holes, without personnel entering the foundation pit operation, compared with the traditional manual digging foundation operation, it can effectively reduce the risk of poisoning and suffocation, object blow and high fall in limited space operation.
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