When setting up a temporary fence, which must meet the requirements

When setting up a temporary fence, must meet the following requirements:
1) Guard railings should be composed of upper and lower rails and railings. The height of the upper rail from the ground is 1.0-1.2m and the height of the lower rail from the ground is 0.5-0.6m. Slope greater than 1:22 roof, protective railing should be 1.5m high, and add safety net. In addition to the design calculations, the bar length greater than 2m, you must add railings.
2) Railing column should meet the following requirements:
① When the foundation pit around the fixed, the steel pipe can be used and into the bottom 50-70cm deep. Steel pipe from the edge of the distance, not less than 50cm. When the pits surrounding the use of sheet piles, steel shell hit the sheet pile outside.
② When concrete appearance, roof or wall fixed, the shell with embedded parts and steel pipe or steel welded. When bamboo and wood railings are used, the shell is welded with a 50 * 5 angle steel 30 cm long on the embedded part, and each hole is drilled up and down, then bolted with 10 mm bolts and bamboo and wood parts.
③ When fixed on masonry such as bricks or blocks, the shell is pre-filled with 80mm * 6mm bent flat steel of a suitable specification for the embedded iron concrete block, and then fixed by the above method.
3) The baluster column is fixed and its connection with the cross bar, its overall structure should make the protective railing anywhere on the rod, can withstand 1000N force in any direction. When the railing is crowded in crowded places, vehicle impact or collision of objects, etc., cross bar section or column spacing should be enlarged.
4) Guard railings must be closed with safety netting from top to bottom, or within the railings should be provided with a tightly fixed foot plate with a height of not less than 18cm or a 40cm stop fence. If there are holes in the toe plate and the retaining fence, it should not be larger than 25mm. Under the board and the bottom of the fence from the bottom of the emptiness should not be greater than 10mm. Pick up the railings on both sides of the platform must be added from top to bottom safety net or full bar bamboo fence.
5) When the outer side of the temporary frontage is facing the street, in addition to the guard railings, the open façade must be fully closed with safety net or other reliable measures.
Border guard railings bar specifications and connection requirements, should meet the following requirements:
1) Pipes and rails are used Φ48 * (2.75-3.5) mm pipe, with fasteners or welding fixed.
2) For other steel products such as angle bars for railings, you should choose the equivalent strength specifications, with electric welding.

Orchard seine chickens technology

Orchard fence netting can save feed, but also eliminate fruit pests, but also the use of chicken manure planting fruit trees, fertility, is a worthy of promotion of advanced technology. Now introduce this technology as follows:

First, the fence net chicken:

1, the fence: to 4 acres of fruit trees as a breeding unit, using a plastic net width of 2 meters fence. When the plastic mesh is selected, the smaller the mesh is, the better the fence is. When the fence is in the net, the bottom and the upper part of the net should be fixed so as to prevent the flocks flinging.

2, the choice of species: local varieties of chicken is better.

3, stocking density: 300 per acre stocking is appropriate, the density is too large, you need to add a lot of concentrate, raising chicken costs, lower profits.

4, feeding and management considerations:

① chickens after a month of brooding, the average daily outside temperature of 15 ℃, you can stocking, pay attention to young chickens difficult to adapt to changing external environment.

② must have a simple shelter, habitat set habitat, so that the habitat for the habitat.

③ stocking, the chicken to be tuned, so that the chicken listen to the password and signal, so that can put the income.

④ grazing to animal husbandry based.

⑤ to rodent, to prevent rodent infants against young birds.

⑥ stocking, add about 50 grams per chicken full price with feed, stocking and feeding combination.

Second, the chickens disease control: 1 day Malik vaccine subcutaneously in the neck; 7-day-old new, support two joint attenuated vaccine instillation, nasal drops, while each neck subcutaneous injection of a new method of inactivation of oil seedlings 0.3ml; 14-day-old bursal disease virus double virulent live vaccine double amount of water; 21 days of new, two double-branch freeze-dried seedlings double the amount of drinking water; 28-day-old bursal disease virus ; 30-day-old bird flu multivalent oil emulsion inactivated vaccine inoculated necks 0.3ml / only. In addition, in doing the above immunization at the same time, should also be done chicken white diarrhea, coccidiosis drug prevention work.

Third, the economic benefits: orchard fence chicken, chicken manure, promote the growth of fruit trees, forests and poultry to achieve a virtuous circle of ecology is an effective way to increase peasants' income. When the chicken stocking grew to about 1.5 kg for sale, due to the color, smell and taste are all well received by consumers, the current market price of 10.8 yuan / kg, per acre of wood stocking by 300 chickens, net production value of 1800 yuan. Stocking chickens due to physical enhancements, reducing disease, especially reducing the abuse of antibiotics and other drugs, is the consumer's ideal "green meat food", the market prospect is good.

What is Triangle Bend Fence

Triangle bending fence is also known as: Drex fence, this product it uses cold-drawn wire hot galvanized, instant welding wire galvanized surface high adhesion treatment, electrostatic spray and other production processes to ensure that products 10 years of anti-corrosion. Fence wire mesh unique design of the Tomahawk, so that the overall product line more smooth. The column of the groove design, the column and the mesh between the need for any connection, become unable to disassemble the whole more secure. Column with chassis, base, hanging and other styles, to meet your different venues to install. Can be installed at the top of the column barbed wire and thorn ring to increase the safety of the protective site. More than 200 kinds of background for you to choose, to meet your different venues, different colors of the environment, improve your installation site of the external image. Simple and quick push-in installation saves you installation time and installation costs.

      Triangle folding fence mesh with a unique design of the Tomahawk, so that the overall product line more smooth. The column of the groove design, the column and the mesh between the need for any connection, become unable to disassemble the whole more secure. Column with chassis, base, hanging and other styles, to meet your different venues to install. Can be installed at the top of the column barbed wire and thorn ring to increase the safety of the protective site.

      Dirickk Axis Compared with the traditional fence: Because the traditional fence covers an area of ​​larger, Drexel fence can save 65% more area than the traditional fence, and improve your use of space The Traditional fence color is single, generally black and white colors, Drex fence has more than 200 kinds of background for you to choose, to meet your different venues, different needs of the environment. Traditional fence easy to paint, rust, a year need to maintain a maintenance cost higher, triangular folding fence 10 years of quality assurance, not stripping, no rust, 10 years maintenance-free, for you to save the high Maintenance costs.