Assembled rectangular reinforced concrete water saving tank

Abstract

The invention discloses an assembled rectangular reinforced concrete water saving tank. The outer contour of the cross section of a tank body is rectangular, and the inner contour is trapezoidal; the tank wall is a right trapezoid structure with narrow top and wide bottom; the outer side wall of the tank wall is a right-angled edge, and the connected place with the tank bottom is a right angle; and the inner side wall of the tank wall is an inclined edge, and the connected place with the tank bottom 2 is transited by chamfering or rounding. The ratio of the notch width to the tank depth is 1: 1-1: 0.5; the notch width is within 300-1200 mm; a sealing groove is formed in the end surface of one side of the tank body, and a joint is formed in the other side; and a reinforcement skeleton is prefabricated in the tank body. The assembled rectangular reinforced concrete water saving tank overcomes such technical difficulties as surface roughness, weak anti-seepage effect, waste of land resources, single structural size, incapability of satisfying the anti-freezing and anti-swelling requirements through mechanical performances, incapability of realizing reinforcement distribution, no economy and no environmental protection in a pressed U-shaped tank, further improves the durability, prolongs the service life of a channel from original 3-5 years to above 20 years, and is higher in superiority when being applied to cold regions and bad foundation soft soil layers.

Description

technical field [0001] The invention relates to the fields of agriculture and food processing, machinery and equipment, in particular to a reinforced concrete water-saving tank for irrigation and drainage of farmland, in particular to an assembled rectangular reinforced concrete water-saving tank. Background technique [0002] At present, the prefabricated concrete water-saving tanks used in domestic concrete water-saving channels mainly use U-shaped grooves pressed with dry hard concrete in the factory. The cross-sectional structure of this U-shaped groove is: the bottom of the groove is semicircular, and the groove wall and the horizontal plane It is connected with the bottom of the semicircular groove at an angle of 5-15 degrees to form a trapezoidal channel with a curved bottom. Although this kind of channel has played a certain role in saving water compared with the traditional earth canal in the past farmland water conservancy construction, there are still many deficie...

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Problems solved by technology

[0003] 1. Since the U-shaped groove is made of dry hard concrete and the pressing production process is adopted, the inner and outer walls of the U-shaped groove produced are very rough. Through actual measurement, it is found that the surface roughness of the channel is between 0.018-0.022, and the resistance to water flow Large, easy to cause silt accumulation

[0004] 2. Due to the use of dry hard concrete in the production process of the pressed U-shaped groove, restricted by the fluidity of the concrete, the produced product has uneven concrete density, and the impermeability of the U-shaped groove cannot be guaranteed. In order to make the channel It has good anti-seepage performance, and the foundation must be treated during construction. The main measure is to add a geomembrane at the bottom of the foundation to enhance the anti-seepage performance of the channel, thus increasing the construction cost

[0005] 3. Restricted by the production process, the length of the pressed U-shaped groove is only 500mm, the width of the groove is less than 800mm, and the thickness of th

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