Convenient installation% FRP manhole - size and price of prefabricated flood control manhole

Convenient installation% The size and price of the prefabricated fiberglass reinforced plastic enclosure well. The dimensions and price of the prefabricated fiberglass reinforced plastic enclosure well. , high price
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my country's water conservancy work is developing rapidly. The construction of reservoirs and dams is in full swing, providing huge support for people's lives and the development of the industrial economy. Reservoir dams are important barriers to ensure the safety of people's lives and the steady development of the economy. Ensuring the safety of reservoirs and dams has attracted the attention of many people. Piping is an important hazard that causes reservoir dam collapse. How to prevent piping in reservoir dams and how to deal with it after it occurs has become the focus of water conservancy workers. Hebei Wuxing Electric Power Equipment Co., Ltd. develops and produces several patented products for pipe inrush prevention: type flood control assembled well enclosure panels, type flood control assembled type well enclosure panels, stainless steel flood control assembled type well enclosure enclosures
and flood control geotechnical The filter mat plays a decisive protective role in inhibiting piping hazards in reservoir dams, and contributes to the prevention and control of piping in dams in my country.
Piping damage during the flood season is a common danger that is extremely harmful to dams. The main measure to protect dams from piping damage is to use Hebei Wuxing Electric Power (Flood Control) Equipment Co., Ltd.'s patented product type to prevent piping wells when piping occurs. Flood control assembled well enclosure panels and type flood control assembled well enclosure panels, stainless steel flood control assembled well enclosure enclosure panels and flood control geotechnical filter mats
1.
Traditional rush protection technologies can be roughly divided into enclosures Well reverse filtration method
,
reverse filtration paving method and water permeability pressure infiltration method.
The well back-filtration method is generally used for small and large piping groups with a small number and small area on the backwater surface, as well as piping groups that are large in number but are not connected into a large area and can be treated in pieces. According to the different seepage conduction materials used, it can be divided into sand and gravel back filtration around the well, back filtration with tip material around the well, geotextile back filtration around the well, filterless back pressure method, and water basin method.
The anti-filtration and blanketing method is mainly used for piping groups with many connected piping groups. Currently, the commonly used filter blankets include geotextile filter blankets, sand and gravel filter blankets, and tip material filter blankets.
The water-permeable pressure infiltration method is to first remove soft mud and debris within the scope of piping. For more serious piping mouths, use sand or stones to fill them. After the water potential is eliminated, use highly permeable materials. The sand construction platform can balance the seepage pressure, increase the length of the seepage path, reduce the seepage slope, and can guide the seepage water to prevent the disappearance of soil particles and control the danger.
A new technology and equipment for protecting piping surge damage was developed by Hebei Wuxing Electric Power Equipment Co., Ltd. and used in flood prevention and rescue operations across the country, and has achieved good results. A new technology and new equipment for protecting piping damage breaks through the traditional concepts in the construction of enclosure wells and the installation of filter layers. It adopts assembled enclosure wells and geotechnical filter mats, which is not only suitable for protecting individual piping surges, but also for protecting piping surges. Protective tube surge group.
Appearance quality and allowable deviations of type flood control assembled well enclosure panels
Appearance quality enclosure panels have a smooth and straight surface with no visible bubbles and cracks
Angle steel frames and connecting steel pipes, The spray paint should be complete and smooth, without cracks or burrs
. The allowable deviation of the hoarding size
. The hoarding size (width and height) can be customized
. The main function of the fixing parts is to connect and fix the unit fence. The well enclosure is a steel pipe. During emergency construction, insert the steel pipe into the connecting hole on the unit enclosure and tamp it into the ground with a heavy hammer to fix the well enclosure.
The drainage system of Hebei Wuxing Electric Power Equipment Co., Ltd.'s patented flood-proof assembled well enclosure board is composed of an automatic drainage device. The main function is to automatically adjust the water level in the well. If the water level in the well is too high, the automatic drainage device will remove excess water in the well. If the water level in the well needs to be raised, the automatic drainage device will be turned off so that the water level in the well reaches an appropriate height and then remains stable. Excess water should not be discharged around the assembled well, but should be discharged to an appropriate location through a connecting hose.
The water-stopping system between the unit hoardings of Hebei Wuxing Electric Power Equipment Co., Ltd.'s patented flood-proof assembled well hoardings uses composite geomembranes or water-stop rubber strips to prevent water leakage between unit hoardings.
4. The main rescue process of Hebei Wuxing Electric Power Equipment Co., Ltd.'s patented flood-control prefabricated well enclosure board is
to determine the installation location of the prefabricated well enclosure. Taking the piping hole mouth as the center, determine the installation position of the surrounding well according to the preset size and diameter of the surrounding well.
, open trenches. You can use a grooving machine or shovel to create a trench ?deep~.
, Place all the unit hoardings set according to the budget in the trench to achieve good connection with each other, and hammer the connecting rods into the ground
, Remove the water stop on the unit hoardings The composite geomembrane or water-stop rubber strips are fixed to an adjacent unit hoarding using battens and screws.
Use soil to backfill the trenches inside and outside the unit enclosure to ensure less leakage. If you encounter sandy soil, you can place some anti-seepage membranes in the trench
5. The type-type flood-control geotechnical filter mat matched with the patented product type flood-control assembled well enclosure board of Hebei Wuxing Electric Power Equipment Co., Ltd. composition. The salient features of the type flood control geofilter mat
Compared with traditional reverse filter materials, the flood control geofilter mat is light in weight, simple and fast to connect, and has good effect. There is no risk of siltation failure and other risks. The material is brand new polyethylene and polypropylene, and the material of the filter layer should be polyester. The flood control geofilter mat is mainly used to protect dams from piping surges and loose immersion. It can also be used as seepage conduction and drainage materials. The specifications are divided into silt type, fine type. Sand type and medium sand type.
The bottom decompression layer mainly controls the water potential, reduces the velocity and head of the sand-laden water flow, and reduces the seepage pressure gradient of the protected land, thereby reducing the erosion effect of the piping sand-laden water flow. The bottom pressure-reducing layer is a geotechnical mat made of modified polyethylene that is heated and melted and passed through. The fibers extruded from the nozzle are stacked together and melted to form a three-dimensional porous material. When the sand-laden water flow from the pipe enters the mat, due to the interference of the mat fibers, the mixing of particles inside the water flow is accelerated, and the concentrated water flow spreads rapidly, resulting in a more uniform vertical flow and plane water flow movement, thus reducing the sand-laden flow from the pipe. flow rate head. The individual block dimensions &. (length, width and height) are placed at the lower part of the filter pad and are in direct contact with the surface soil.
The middle filter layer mainly uses special geotextile to protect soil and discharge sand. The individual block dimensions are . &. (length and width) with a certain thickness, penetration system and effective pore size.
The upper protective layer is made of geotechnical mats. The size of a single piece is . changes occur.
The assembly combines the pressure reducing layer, filter layer and protective layer into a composite body, allowing each layer to play its own role. Since the middle filter layer is a special needle-punched geotextile, it has obvious compressibility. In order to ensure that its characteristic indicators are not changed by the overlying load, appropriate measures have been taken during the assembly process.
. Connectors When a single filter pad cannot meet the requirements for protecting a large-area piping surge group, several filter pads can be assembled into a filter pad blanket. At this time, the second filter pad is placed on the geotextile extending out of the first filter pad, and then fixed with a connector (special plastic buckle).
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Convenient installation% The dimensions and price of the prefabricated flood control enclosure of the fiberglass reinforced plastic enclosure , price and height
Easy to install% Fiberglass reinforced plastic enclosures assembled flood control enclosures size, price and height