Method of constructing underground diaphragm wall by cement deep mixing
A construction method and cement technology, applied in water conservancy projects, artificial islands, underwater structures, etc., can solve the problems of lack of integrity, poor continuity of the diaphragm wall, poor permeability resistance, etc. Compact structure, good quality effect
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[0022] See attached figure 1 ,
[0023] 1. Clearing the site, preparing materials, leveling the implementation site, removing ground and underground obstacles, and the working surface is not less than 7m. When the surface is too soft, measures should be taken to prevent mechanical instability. Prepare sufficient amount of cement and additives.
[0024] 2. Measuring and laying out the wall construction axis is determined according to the design requirements, and an elevation control pile is arranged every 50m, and obvious signs are made.
[0025] 3. Install and debug the supporting mobile machine and the main engine in place; erect the pile frame; install the grouting, grouting and gas-making equipment; connect the water circuit, electric circuit and gas circuit; run the test run.
[0026] 4. Excavation of trench plank is a storage trench with a depth of 1m and a width of 1.2m to solve the storage and refilling of residual slurry during the drilling process. The length is 10m ahead of...
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