Application of Gabion Basket on dam

In the face of natural floods, the river bank collapsed and it was urgent to block the collapse. The stone cage net can be folded into a cage at the scene, and the stone can be poured into the water to block the river.

 

The stone cage net device is convenient, easy to use, no need for skills, and is suitable for use under severe conditions. Every year, the water conservancy department stores lead wire mesh.

For example: collapse and rescue. When the reservoir dam collapses, throw a stone, sandbag or lead wire (bamboo) gabion along the collapsed part, first throw it from the severe part of the top collapse, then proceed sequentially and throw it to a stable slope to stop.

 

The gap is safe. When the backwater slope of the dam and the foot of the slope are adjacent to the seepage hole of the dam itself or the foundation, the gap entrance is found. If the hole is small, the material such as cotton wool, straw bag or woven bag can be used for tamping, and the straw is bundled into a soft wedge. If the hole is large, or when there are more holes, use a large iron pot to buckle or buckle on the hole, cut off the water flow, cover it with a tarpaulin or a net bag, then cover the soil bag, sand bag, and fill the clay tightly. .

 

Leakage water rescue. When the dam body seeps through water, the method of "water seepage and backwater drainage" is selected. In the front of the water slope, the viscous earth material with small water permeability is used for the front hoe, and the tarpaulin and the geomembrane can be used to reduce the infiltration of the water body. In the backwater slope, the sandstone, geotextile or firewood with large water permeability is filtered, and after filtering, the soil material is not lost, then the moisture line is lowered, and the dam body is kept stable. Do not use clay to infiltrate the backwater slope, which will raise the moisture line, resulting in the expansion of water seepage and the danger.

 

The use of gabion nets as a river protection project has the following clear benefits compared to reinforced concrete and masonry structures:

 

1. The flexible flexibility of the wire makes the stone cage project adaptable to deformation or tortuosity. When the ground settlement or foundation deformation occurs and the foundation settlement of the building foundation occurs, a kind of interlacing tension and kneading is formed inside the stone cage net, which can adapt to external deformation without cracking. Field experiments at the project. In a group of 800 m long, 50 kg of stone in the upper part of the gabion beam, plus 80 kg of load, under the external load, the middle of the beam of course is tortuous deformation, but the gabion beam has not been cracked.

 

2, the product is easy to protect because the stone cage in the trend of the extension of the addition of a baffle net, these baffle nets are divided into a self-powered cube. Therefore, when a cube is loosened by a grid, the stone is loosened, so that when it is washed away by water, it is only limited and somewhat. Moreover, some damage caused by the two-way interlaced iron shovel is not easy to expand, so the repair is very concise. Simply rebuild some damaged mesh and refill it to continue using it.

 

3, the product construction costs are low, the same as the stone cage filled with stones and pebbles can be tailored, used in mountain construction where transportation is not convenient. There are no need to purchase many templates and mechanical equipment than other projects. Project cost should be lower.

 

4, excellent permeability In view of the superior drainage function of the wire, the stone cage network project is used in the water-resistant building part of the water level change, which can remove the drainage hole setting. In the riverside project, it is possible to eliminate or reduce the pressure that acts on the retaining wall with the water depth, which is conducive to the constant and safe building.

 

5. The use of the stone cage net has a quick construction. When the foundation is excavated, the stone cage building can be built once. It is also possible to avoid cofferdams in rivers and beaches during construction and to reduce the use of boats. Construction in a water-free area can be completed by laying, rock filling and joint reinforcement. When the underwater construction is carried out in the coastal area of ​​the river, the gabion net can be installed beforehand, and then hoisted and placed in place. Perhaps this method can be used by ship to the reservation address.