Sichuan Chengdu ecological bag manufacture

  1
Generally, the foundation of the site structure shall be excavated
The excavated foundation trench shall be opened to protect the slope angle of the whole structure
The excavation width shall be slightly greater than the width of the design foundation trench
Small gravel shall be placed
The foundation must be compacted to reduce the settlement of the wall
The surface shall be poured with concrete, which is conducive to the stability of the whole structure
2
According to the analysis, the slope should be basically flat
When the catchment area of the slope is large, drainage facilities should be set behind the wall; The catchment area on the slope is small, so drainage facilities can not be set, because the wall is permeable, the permeability of the wall can reduce the hydrostatic pressure, and the water infiltrating into the bag can maintain lush vegetation
3
Generally, ecological bags should be filled at the construction site to save transportation costs
At the same time, the soil or gravel produced by foundation and slope treatment can be used to fill the ecological bag
The filler in the bag depends on the actual needs
Generally speaking, the filler suitable for bagging includes soil, gravel, fertilizer conducive to plant growth or a mixture of the above materials
General bag sealing methods include: industrial portable sewing machine, plastic binding buckle, etc
(it is recommended that users choose by themselves)
4
After the installation foundation trench of the structure is excavated and properly leveled, the ecological bag can be stacked as the foundation layer according to the design requirements (generally, the ecological bag of the foundation layer should be filled with 10mm-25mm gravel to facilitate the drainage of the whole structure), and the ecological bag can be flattened after being stacked neatly
Place the connecting buckle of the ecological bag between the two ecological bags on the bottom layer, and then stack it on the overlay layer
Step on or tamp the overlay ecological bag to strengthen the connection between the ecological bag and the connecting buckle, which is conducive to the overall stability
5
Tamp the slope protection and backfill behind the retaining wall
The compaction process is very important for the stability of reinforced retaining wall or slope protection wall
When the soil is not pressed, it will bring additional earth pressure to the wall
When the backfill is soaked by water, it will have a great impact on the stability of the project
(if the geogrid is designed, when the soil around the geogrid is not well compacted, the geogrid cannot achieve the expected reinforcement effect
) (1) During compaction, the backfill material must ensure appropriate humidity to achieve the best compaction effect
(2) Organic soil or heavy clay materials should not be selected
These materials have excessive water holding capacity, which is easy to produce adverse effects in case of water, and are not easy to tamp
(3) Compaction equipment must be used to effectively compact the soil
(4) The equipment to be tamped shall not be less than 1m away from the wall during operation
(5) Avoid over compaction of soil close to the wall in a non controlled manner
6
When installing reinforced slope protection and retaining wall, the soil has good compressive strength and almost no tensile strength
Therefore, the reinforced geotechnical structure is composed of reinforced materials (one-way and two-way geogrids are recommended for chunjingtang Horticulture) and soil to enhance the tensile strength of backfill
The conditions of foundation, subgrade, dam, soil, load and earthquake should be considered in the design of reinforced retaining wall (see the design guide of reinforced retaining wall recommended by international and domestic geosynthetics Association for details)
7
Capping: cover one or two layers of waterproof film on the second layer close to the top layer and the backfill soil connected with the original slope at the rear; On the top of the wall, the long side of the ecological bag shall be placed perpendicular to the edge of the wall to prevent a large amount of rainwater from penetrating into the gap between the slope and the ecological bag wall, affecting the overall stability, and then the wall top shall be completely covered with soil