Longhole rectangular terraced antiskid pile jump-preventing excavating construction
A technology for working face, landslide body, applied in the direction of excavation, sheet pile wall, foundation structure engineering, etc.
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[0005] 1. Operation points
[0006] 1.1 Construction preparation: measure the pile position, level the site, build cut-off and drainage facilities, clean and load-reduce the slope, and take protective measures such as spraying concrete, hanging nets, and building corner walls on the slope. Install the derrick, install the hoist and other equipment. Prepare the required tools, equipment, underground drainage and lighting facilities for each tool, and bury observation points for landslide deformation, displacement, and soil-water pressure, and record the initial values. Before excavation, φ48δ3.5 steel pipes are used to set up canopy brackets above the orifice, and the support is covered with colored strips to avoid rain, ensuring all-weather operation, and when it rains, there is no rainwater flowing down the orifice to wash the hole wall, and excavation around the orifice Gutters to prevent stagnant water and rainwater from flowing into the holes.
[0007] 1.2 Lock mouth pro...
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