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. Clear the site, prepare materials, level and compact the construction site, remove ground and underground obstacles, and the working surface should not be less than 7m. When the ground surface is too soft, measures should be taken to prevent mechanical instability. Prepare enough cement and admixtures.
[0024] 2. Surveying and setting out The axis of the wall construction shall be determined according to the design requirements, and an elevation control pile shall be arranged every 50m, and a clear mark shall be made.
[0025] 3. Installation and commissioning to support the mobile machine and the main engine in place; erect pile frames; install pulping, grouting and gas-making equipment; connect water, electric and gas circuits; run and test run.
[0026] 4. Ditching and decking The excavation cross-section is a storage ditch with a depth of 1m and a width of 1.2m to solve the residual slurry storage and slurry return supply durin...
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