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How to lay out the geo bag water protection facilities?

Beginning in the 1980 s used on domestic projects, currently in high-speed rail slope protection, highway slope protection, mine turns green, river bank protection, the application of the pipeline soil conservation projects such as gradually increased, the ecological and economic effect is obvious, especially for traditional masonry materials transportation inconvenience of mountainous area, is beneficial to speed up the construction and landscape restoration, to protect the environment.

 

The geo bag water protection facilities of natural gas pipeline mainly include the water cutting wall of geo bag, retaining wall of geo bag, slope protection of geo bag, geo bag fort and slope protection of geo bag.

Through geo bag retaining and protecting, slope cutting drainage ditch matching with local growth and well-developed root system, the natural gas pipeline slope protection, drainage, afforestation restoration integration.

 

FIG. 1 is the slope protection of "non-" geo bags. The design idea is changed from the usual water interception to active drainage. This hydraulic protection using geo bag laying water conservation and drainage is a very effective way to prevent and control soil erosion.

Word "not" on both sides of the fort camp according to the situation of slope design for different density, and most of the small Angle for the slope upward flushing water drainage pool to the middle of the ditch, ditch drainage by remit to close drainage ditches, the rest of the seeping into the soil through they water wall, retaining wall, a drain discharge, effectively safeguard line at the top of the soil and water conservation and the original vegetation growth.

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Comparison between geo bag water protection facilities and traditional masonry protection measures

 

During the laying and construction of natural gas pipeline, the surface will be disturbed in the operation belt along the slope, hill, river, gully and other places. With the progress of the project, the slope along the line will be faced with increasing threat of soil erosion.

 

Slurry masonry protection structure as a traditional soil and water conservation engineering measures, although the scour resistance, strength, not easily influenced by the environment, but the transport conditions, the construction are greatly influenced by the topography and geomorphology, construction cost is higher, and larger slurry masonry structure's impact on the environment conservation, and the combination of slope is not enough, for the destruction of slope treatment effect after pipe laying is limited, prone to slope soil erosion problems.

 

geo bag is a double-side sintered and needled non-woven bag made of polypropylene as raw material. With special materials and structures and the characteristics of only water permeable but not soil permeable, it can be used as a soil and water conservation engineering measure. Laying the bag can not only prevent the loss of filler, but also realize the normal infiltration of water in the filler, which is conducive to the restoration of vegetation.

The flexible structure of the geo bag is also conducive to the integration of local settlement with the environment and better integration with the original soil.

 

In addition, the geo bag used for soil and water conservation engineering is special in material, which can effectively resist the erosion of ULTRAVIOLET radiation, is not easy to rot or deteriorate, is not easy to degrade in a short time, and can resist insect pests and aging very well. It is non-toxic and harmless to the environment, and has a good ecological effect.

Through engineering and plant measures, the landslide and collapse of excavation slope were prevented, the normal construction and operation of the project were ensured, the soil and water loss of temporary mound soil and other slope surface were prevented from entering the downstream water system, the landscape environment of the project area was improved, and the soil and water resources in the project area were protected.

 

Using ecological protection bag instead of the traditional slurry masonry slope protection, can reduce the use of reinforced concrete, covers an area of saving, save money and slope restoration and the integration of the surrounding landscape, in line with the current promoting sustainable development strategy, to promote the benign development of economy and society, has the good social and economic effect.

 

Geo bag water protection facilities are limited

 

Ecological conservation and the traditional slurry masonry bag water conservation facilities, distinctive ecological conservation bag has good construction convenience and environmental adaptability, flexible structure can effectively resist the foundation settlement, avoid cracks but also because of ecological water conservation is mainly composed of bag bag of drainage connection button code build by laying bricks or stones, such as the strength and durability is much less than the slurry masonry protection measures, and natural gas pipeline engineering needs in the slope toe and the side of the road is often able to slope side confined stress larger high strength protective way, so the ecological slope protection bag with slurry masonry slope protection become the preferred (figure 2)

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Summary

 

geo bag of the sustainable development of water conservation facilities for the environment has a positive effect, compared to the traditional slurry masonry slope protection, using ecological recover quickly and thoroughly bag hydrotechnological protection features, be able to grow vegetation, absorb carbon, and oxygen production, thereby reducing carbon emissions, optimize the environment, to achieve the effect of energy conservation and emissions reduction.

Eco-bag has the characteristics of environmental protection, convenience and economy, which makes it have a wide application prospect in the construction of natural gas pipeline project.


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