At present, many vegetable growers have more than ten years of sheds. Due to the insulation of these old sheds, new sheds are not well insulated and have high yields. Therefore, many vegetable farmers plan to use bulldozers to push down old sheds and build new sheds. However, the reporter found that many vegetable farmers were pushing down the old shed, and after a simple leveling process, they began to excavate the shed by using an excavator. As a result, the new sheds of vegetable growers always had more large clods and were not easily pressed. In fact, when an excavator is used to build the rear wall, large earth blocks are easily picked up by the excavator from the wall, thereby affecting the firmness of the wall. Therefore, in response to these problems, the reporter interviewed a number of farmers who were reconstructing old sheds in the ancient city streets of Shouguang City, and summarized some of their good practices when dealing with these issues, hoping to help other vegetable farmers. After the old shed is pushed down, pay attention to crushed soil blocks During an interview with reporters in rural areas, the reporter discovered that many vegetable farmers had used bulldozers to push down the old wall after they had pushed down the old shed to rebuild the new one. After a simple roller compaction and flattening of the wall, the excavator began to build a shed. . However, the poplar in the Gucheng Street, after taking down the old shed, did not do so. Instead, it used a bulldozer to push down the old shed wall, and then it was pushed and pressed. When the soil blocks were roughly crushed, they were poured again. The way of water promotes the further smashing of small soil blocks before it is rebuilt. When the reporter asked me to do so, Master Yang told reporters: “The old sheds were built not by using sheds made of wheat straw and mud, or by digging earth with an excavator, and then using a bulldozer to compact the walls of the shed. As a result, a large amount of clods are formed and are not easily crushed, and these clods will be embedded in the wall of the greenhouse during the construction of the shed, which will not be easily compacted and will affect the firmness of the wall, but will be used after the old shed is torn down. The bulldozer will thoroughly crush the soil blocks and crush the soil blocks before watering. This will not only promote the further smashing of the soil blocks, but also increase the water content of the soil blocks and increase the binding capacity between the soils, facilitating the construction of new ones. The compaction of the wall during the shed enhances the firmness of the wall of the greenhouse." At the same time, the reporter also learned that if a new shed is rebuilt after the old shed wall has been fully crushed, there will be no situation where large blocks of soil are pulled down from the wall due to the use of an excavator to erect the shed wall. This avoids the appearance of large holes in the wall. Old shed to new shed to increase compaction intensity When the vegetable farmer builds a new shed after pushing down the old shed, the new shed wall uses the foundation of the old shed. During the process of using the bulldozer to crush and flatten the back wall of the old shed, there will be a large amount of clods that cannot be pressed. broken. This is because the original shed is more than 50 cm deep. When the old shed wall is pushed into the shed, the buried burial mound is hardly crushed. However, after watering, because the moisture content of these soil blocks increases, they are easily crushed and recombined. Therefore, when using old sheds to rebuild new sheds, the compaction intensity must be increased. Some vegetable farmers believe that the construction of new sheds should be higher and thicker than the original sheds. The foundation requires a large bearing capacity, so the foundation must be re-compacted. Wang Jianxiang, a person in charge of building sheds in the streets of the ancient city, told reporters: “Because the depth of soil excavated by vegetable growers is 1.0m or more when the shed is being built, bulldozers cannot achieve such a thick soil layer when compacting the soil. Compaction, so it is recommended to excavate the foundation part of the soil about 50 cm above the ground surface, and then use a bulldozer to carry out the compaction of the soil under the foundation, and then backfill the upper 50 cm soil layer, using a bulldozer to compaction compaction. In order to increase the load-bearing capacity of the greenhouse foundation, “In addition, when the vegetable growers build sheds on an open space, they usually use the excavator to add about 30 centimeters of soil each time, and then use a bulldozer to compact each layer of soil back and forth 3-4 times to compact the wall. When using the old shed to reconstruct a new shed, because there are more soil blocks in the soil, when using an excavator to add soil, the soil layer should be thinned for each layer of soil to 20-25 cm for each layer of soil. Well, the number of rolling back and forth bulldozers is increased to 4-5 times, so that the larger soil blocks that have not been crushed can be crushed and compacted again to enhance the firmness of the wall.†Master Wang Introduction said. After the wall is properly dried, it is walled When constructing sheds, many vegetable farmers reported that if the soil has a large moisture content and the soil is more viscous, if the wall is built immediately after the completion of the back wall of the shed, the soil will have a stronger bond between the soils, which will increase the wall of the shed. Difficulties have even led to the formation of many small holes in the wall of the shed, which has affected the firmness of the shed. Therefore, after the wall is built, do not rush to build the wall, but wait 2 days before proceeding. After the wall of the greenhouse is completed, because the soil on the innermost edge of the wall is not compacted, moisture in the soil easily evaporates, which reduces the viscosity of the soil. When the walls are built, the adhesion between the soils is poor, and it is easy to The walls are laid flat so that the soil on the walls does not fall off easily after the walls are built. Shaanxi Kepler Biotech Co.,Ltd , https://www.keplerherb.com