Advantages of slope protection brick:
1. It is suitable for 1:1 slope construction and can work safely under high shear stress caused by high-speed water flow;
2. Restore the ability of soil purification and pollution, improve the biological viability of water body, and avoid secondary pollution of hardened river;
3. It is especially suitable for tight dike prevention, danger removal and consolidation works. Underwater construction does not require cofferdam, which is not only economical but also saves time;
4. It can be planted with grass to protect the ecological environment;
5. The comprehensive cost of Haiti, Fangxun, revetment and masonry is economic.
Construction method of slope protection brick:
1. Excavate the foundation pit along the edge, fill the pit bottom with appropriate materials and compact it, masonry the upper and lower edge baffles, and build the top elevation of the baffle to be level with the bottom elevation of the interlocking slope protection;
2. Lay geotextile or graded crushed stone on the completed foundation surface;
3. Three rows of interlocking slope protection bricks are interlocked and laid from the lower edge. The length direction of the bricks is reversed along the water flow direction. The bricks along the lower edge are generally laid into the toe wall and anchored to the rubble or concrete toe wall. The lower edge of the second row of interlocking bricks along the lower edge intersects the toe wall;
4. Masonry the toe wall along the lower edge, use concrete or rubble concrete to masonry the rest of the toe wall together with the interlocking bricks anchored into the toe wall, so that the toe wall meets the design requirements;
5. Lay other retaining bricks from the lower left corner, and the laying direction shall be parallel to the toe wall, instead of perpendicular to the toe wall, so as to prevent cumulative errors from affecting the laying quality.
6. Lay the interlocking bricks in the upper wall, and build the upper wall, so that some of the interlocking bricks on the upper wall are anchored to the upper wall. During the color treatment of the interlocking brick surface, remove the floating ash and other sundries and pollution on the surface of the interlocking bricks. If it is necessary to wash with water, it can be washed with water, and color treatment can be carried out after the water is dry;
7. Filling brick holes and joints with dry sand, crushed stone or soil;
8. In order to form a corner or straight edge, a toothless saw can be used to cut slope protection bricks to obtain the corresponding specifications and angles.
Since 2000, the trench cover market in China has become more widely used in municipal roads, garden facilities, residential areas, schools, stadiums, factory construction and other places. The national design requirements for steel grating products have related instructions for steel grating and steel grating products.
Application fields of trench cover plate:
1. Power: due to its performance, extruded profiles are widely used as insulation supporting members, high-voltage cable bridges, antenna posts, high-voltage current operating poles;
2. Transportation: It can be used as layering, corner board in trains and cars, as well as highway guardrail, sound absorption board and chord guard board;
3. Petrochemical industry: due to the excellent corrosion resistance of FRP, it is widely used in petroleum, water conservancy, textile printing and dyeing, food processing, electronic industry, sewage treatment, shipbuilding, civil construction, electric power substation of electric power engineering, chemical industry, as well as sub stairs, handrails, operating platforms, walkways, drainage systems, seabed signs, oil well sucker rods, and various anti-corrosion supports.
The control cover plate adopts all steel welding structure, which is simple in structure, easy to operate, beautiful in appearance and low in energy consumption. It is widely used in metallurgy, light industry, machinery, hardware, motors, electrical appliances, automobile maintenance, hardware manufacturing and other sheet metal processing industries. Control covers are generally divided into direction, pressure and flow (unit: cubic meters per second) control covers, as well as control covers for combination and functional composition.
Control cover plate: used as a fixed insert, it is processed with a pilot control oil passage, and is equipped with various micro components, which can control the working state of the insert after being combined with the pilot control valve; The control cover plate is also equipped with one or more damping plugs to adjust the response time of the inserts. Control covers are divided into categories: direction, pressure and flow; When there are more than two functions, it is called composite control cover plate.
