Practical technology for building sturdy and durable greenhouses

As the weather gets warmer and the ground thaws, many vegetable farmers have entered a new round of greenhouse construction. Nowadays, the specifications of newly built greenhouses are getting higher and higher. How to ensure their sturdiness and durability? The technical staff of the engineering department of Shouguang Shengrong Greenhouse Co., Ltd. will guide you:

Smart solutions to the collapse of the back wall by grooving + capping

The biggest fear of new greenhouses is that rain will damage the walls. Therefore, during the process of building a new greenhouse, how to make the walls stronger is what many greenhouse builders are thinking hard about.

1. Slotted at the bottom. Grooving when building a shed is equivalent to laying a foundation when building a house. Before digging the wall, the soil is dug deeply at the place where the wall is dug, and then the soil is repeatedly pressed and compacted with a chain rail machine, and then the wall is built on top. In order to save money, many vegetable farmers often choose not to cut grooves when building new sheds, but directly dig the walls. This is actually a small gain, and the wall may collapse later. Nowadays, the walls of greenhouses are about 4 meters long. If grooves are not made in advance and the foundation is compacted, problems such as settlement and offset are likely to occur after the greenhouse is built. It is difficult to ensure the firmness of the greenhouse, which greatly affects its service life. The wall may collapse at some point, which is very common in production. Therefore, before digging the wall, do not ignore the safety of the entire greenhouse just to save a little money. Taking the current construction of a 70-meter-long and 12-meter-wide greenhouse as an example, it would cost more than 5,000 yuan just to dig out the walls, while the cost of slotting would be less than 1,000 yuan. If you don’t dig trenches when building a new shed, and the vegetables in the shed enter the fruiting period, if the shed body is not strong and collapses, it will be like “picking up sesame seeds and losing the watermelon”, and the gain outweighs the gain.

2. 11 times of compaction in the middle. Too little compaction of the wall is another reason why the back wall of the greenhouse is prone to collapse. Some vegetable farmers often use 6-9 times of compaction. It is recommended to change to 11 times of compaction. Generally, the soil layer above the ground should be within 1.2 meters. The thickness of each layer of soil should not exceed 25 centimeters. Make sure it is compacted by a bulldozer. The thickness of the soil layer can be appropriately thickened and should not exceed 40 centimeters. In other words, the wall 4.6 meters away from the bottom of the shed must be divided into 11 Soil compaction.

3. After the greenhouse is built, pay attention to capping it. After the greenhouse was completed, the roof was not sealed, and the upper part of the wall collapsed. Therefore, after the greenhouse walls are filled with soil and compacted in stages, the last layer of soil is used for capping. When capping, the thickness of the soil is generally 40 cm (the raw material used is a mixture of lime and soil. Generally, a greenhouse uses 30 bags. Lime), and then use a machine to roll it back and forth twice to ensure that the upper part of the wall is compacted. At the same time, both sides of the wall should be compacted with tools to prevent the wall from collapsing due to excessive load-bearing during later construction.

The rear roof is easily damaged and protected by four layers of insurance

With the increase in the weight of the greenhouse roller shutter machine and thatch, damage to the rear roof is an old problem, but it has not been found during construction. suitable solution.

1. Connect the rear masonry to the rear slope with steel wires. Some people think that the back brick is built on the earth wall and later covered by the back slope, so there is no need to tie it up, but this is wrong. Because the front section of the back brick is only resting on the pillars, as long as it is squeezed by external forces, the back brick will definitely move outward, causing it to slip and collapse. Therefore, the steel wires on the rear masonry and rear slope must be tied again with steel wires, usually 5-6, to ensure stability.

2. The wall ground anchor is connected to the back slope support steel pipe. Nowadays, there are ground anchors on the back wall corridor of the newly built greenhouse. The ground anchors are connected to the supporting steel pipes of the rear slope with steel wires, which greatly reduces the downward force on the rear slope, thus ensuring that the rear slope is stronger.

3. The columns are punched and bound with steel wires. Generally speaking, builders will bind steel wires to the upright columns and the back masonry. However, due to the influence of force, the steel wires tend to move upward after being bound. Therefore, holes are drilled in the back masonry and the upright columns respectively. Pay attention to the two holes. Horizontal position and then binding with wire through the holes works great.

4. Add a steel pipe in the middle of the back slope. I learned that there are no steel pipes on the back slope of the greenhouse, and most of them are supported by back bricks. In order to make the back slope stronger, it is recommended to add a steel pipe on the back slope. That is to say, the steel pipe is set in the middle of the pillars behind the shed. position, and then use angle iron or semi-circular steel pipes to connect the steel pipes to the rear masonry. In order to ensure stability, the rear steel pipes can be welded with the east-west steel beams of the greenhouse in one pass and connected to the main beam steel pipes. Then put the film-supporting bamboo on the rear steel beam and tie it with iron wire to prevent the previous double steel wire from clamping the bamboo pole and causing it to sink or loosen. Later, even if people step on the rear slope or the rolling shutter machine is placed behind the slope, the rear steel beam will not sink. This not only extends the service life of the rear steel beam, but also makes the rear slope stronger.