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Miter-connected concealed pipe laying method and application of miter-connected concealed pipe laying method in soil amendment of saline-alkaline land

A technology of oblique angle connection and laying method, which is applied in application, soil preparation method, climate change adaptation, etc., can solve the problems of insignificant effect of water-soluble chloride, low anti-rot rate, and insignificant increase of soil moisture content in saline-alkali land, etc. , to achieve the effect of improving the rate of anti-rotten disk disease, reducing the content of bicarbonate ions, and reducing the content of water-soluble chloride

Inactive Publication Date: 2016-12-21
SHANDONG SUNWAY LANDSCAPE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] (1) The existing salt removal method has no significant effect on reducing the bicarbonate ion content and water-soluble chloride content in saline-alkali land;
[0007] (2) The existing method of removing salt does not significantly increase the water content of the saline-alkali soil;
[0011] (5) Low rate of anti-rotten disk

Method used

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  • Miter-connected concealed pipe laying method and application of miter-connected concealed pipe laying method in soil amendment of saline-alkaline land
  • Miter-connected concealed pipe laying method and application of miter-connected concealed pipe laying method in soil amendment of saline-alkaline land
  • Miter-connected concealed pipe laying method and application of miter-connected concealed pipe laying method in soil amendment of saline-alkaline land

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Embodiment 1 A kind of salt drainage underground pipe

[0042] The salt-discharging underground pipe comprises the following components in parts by weight:

[0043] 48 parts of ethylene, 32 parts of polytetrafluoroethylene, 5.5 parts of cerium silica, 12 parts of alumina trihydrate, 2.4 parts of viscose, 1.6 parts of oxidized paraffin, 2.3 parts of epoxy soybean oil, 0.13 parts of barium sulfate, N-phenyl- 0.44 parts of β-naphthylamine, 0.77 parts of hydroxystearic acid.

[0044] The polytetrafluoroethylene has an average molecular particle diameter of 2-5 μm, a water absorption rate of 0.01%, and an oxygen index of 95%;

[0045] The viscose is viscose fiber in the form of viscose filaments, with 1-2 knots and 60f holes.

Embodiment 2

[0046] Embodiment 2 A kind of salt drainage underground pipe

[0047] The salt-discharging underground pipe comprises the following components in parts by weight:

[0048] 54 parts of ethylene, 39 parts of polytetrafluoroethylene, 6.0 parts of cerium silica, 18 parts of alumina trihydrate, 3.0 parts of viscose, 2.2 parts of oxidized paraffin, 2.9 parts of epoxy soybean oil, 0.21 parts of barium sulfate, N-phenyl- 0.55 parts of β-naphthylamine, 0.82 parts of hydroxystearic acid.

[0049] The polytetrafluoroethylene has an average molecular particle diameter of 2-5 μm, a water absorption rate of 0.01%, and an oxygen index of 95%;

[0050] The viscose is viscose fiber in the form of viscose filaments, with 1-2 knots and 60f holes.

Embodiment 3

[0051] Embodiment 3 A kind of salt drainage underground pipe

[0052] The salt-discharging underground pipe comprises the following components in parts by weight:

[0053] 58 parts of ethylene, 41 parts of polytetrafluoroethylene, 6.4 parts of cerium silica, 24 parts of alumina trihydrate, 3.6 parts of viscose, 2.7 parts of oxidized paraffin, 3.4 parts of epoxy soybean oil, 0.25 parts of barium sulfate, N-phenyl- 0.59 parts of β-naphthylamine, 0.89 parts of hydroxystearic acid.

[0054] The polytetrafluoroethylene has an average molecular particle diameter of 2-5 μm, a water absorption rate of 0.01%, and an oxygen index of 95%;

[0055] The viscose is viscose fiber in the form of viscose filaments, with 1-2 knots and 60f holes.

[0056] Table 1 is the result of the performance test carried out to the salt discharge underground pipe described in embodiment 1-embodiment 3

[0057]

[0058] From the above test results, it can be seen that the performance of the salt dischar...

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Abstract

The invention provides a miter-connected concealed pipe laying method. The method comprises a ditching step, a salt-removing concealed pipe selecting step, a pipe laying step and a sand and gravel laying step, wherein in the ditching step, the spacing among salt removing ditches is 110cm to 130cm; and in the pipe laying step, salt-removing concealed pipes and drainage lateral canals are of miter connection, and an intersecting angle beta is 42 to 55 degrees. The invention further provides an application of the miter-connected concealed pipe laying method in soil amendment of saline-alkaline land. According to the concealed pipe laying method provided by the invention, one year after amendment, the total content of water-soluble chlorides in soil is 0.09cmol / kg to 0.36cmol / kg.

Description

technical field [0001] The invention relates to a method for laying a hidden pipe and its application in improvement of saline-alkali land, in particular to a method for laying a hidden pipe connected at an oblique angle and its application in soil improvement of saline-alkali land, and belongs to the technical field of rapid desalination and improvement of saline-alkali land. Background technique [0002] The formation of alkaline soil and alkalized soil in my country is mostly related to the accumulation of carbonate in the soil, so the degree of alkalization is generally high, and plants in severe saline-alkali soil areas can hardly survive. [0003] Draining and washing salt is one of the indispensable main measures for the treatment of saline-alkali land, following the natural law of "salt comes with water, salt goes with water". [0004] Underground pipe salt drainage technology is to lay a pipeline with pores at a certain depth underground, and the water that flows in...

Claims

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Application Information

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IPC IPC(8): A01B79/00
CPCA01B79/00Y02A40/10
Inventor 王胜
Owner SHANDONG SUNWAY LANDSCAPE TECH
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