① Preparation:
Slope masonry should be carried out after the slope is dense, flat and stable. Stone grade should meet the design requirements. Before laying, the surface soil and oxide scale should be cleaned up.
(2) Digging foundation:
The slope protection construction adopts artificial foundation excavation and manual slope brushing. Before laying, the basement should be leveled and compacted, and can only be laid after inspection.
(3) Masonry:
Rubble is constructed by squeezing slurry method and paved from bottom to top. Blocks shall not be laid flat, and stones shall be staggered and overlapped. Staggered joints are generally 7 ~ 8 cm, and shall not be loose. No floating. When laying, the mortar must be full and dense, and there can be no slurry hanging phenomenon.
Masonry should use 15cm above the block (block) stone.
The surface of dry-laid slope should be smooth, and in case of hard rock, it can be dug into steps.
When the masonry slope protection is constructed in sections, an expansion joint shall be set every 10 ~ 15m, and expansion joints, settlement joints and drainage holes shall be prepared. A filter layer should be set behind the drainage hole.
(4) jointing health:
Before jointing, the loose and deformed parts should be trimmed, and jointing of dry slope protection should be carried out after embankment settlement is stable. Mortar stones should be watered for health preservation. After the mortar is solidified, all the walls are brushed clean to make the appearance neat and beautiful.
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