XX real estate building project is divided into three parts, namely, Building A, Building B and Building C are connected. According to the design drawings, the depth of the foundation pit is -5.6m, and the depth from the natural terrace to the bottom of the trench is -5m. At present, the dredging and deep excavation work after the completion of pile foundation is in progress. According to the construction progress (incomplete design drawings), foundation treatment will be carried out in rainy season. In order to prevent the landslide and collapse at the edge of foundation pit from causing unsafe factors and affecting the construction progress, slope protection should be done according to the geological data provided by the geological survey department.
Specific measures are as follows:
A, slope cleaning project
1. Clean and level the periphery of the foundation pit1m.
2. The slope of the foundation pit is 450, from the top of the slope to the bottom of the slope < 2, use leveling for alignment, and hang up the line to find the slope during operation to ensure the slope and smoothness.
3. When clearing the slope, it shall be treated separately when the local concavity becomes larger. Backfilling with soil is not allowed, and all loose soil layers will be removed.
Second, the anchoring method:
1. Adopt 14 ~ 18 steel bar, the length is 1.5 ~ 2m, and it is anchored in the slope in a plum blossom shape, with an exposure of 54mm and a vertical and horizontal spacing of1m.. Connect adults with 6 steel bars and anchor rods (as shown in the figure).
2. Hang 50×50 barbed wire on the slope and fix it on the anchor rod (as shown in the figure).
Third, the slope surface practice:
1. The surface course is
2.& lt2. When plastering the surface layer of fine stone concrete, fine stone concrete must be mixed in proportion. Plastering layer should be dense and smooth, plastering at one time, reducing construction joints.
The detailed information of "Jinxiu Jiayuan Building Slope Protection Scheme" can be found in the link of Zhong Da Consulting and Design, and all relevant building construction information you want is available.
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