Preparation method of trench with anti-seepage function

A trench and function technology, applied in the sewer system, building, water supply device and other directions, can solve the problems of poor corrosion resistance and durability, prone to cracks, high water seepage at the base of the original trench, and achieve easy construction, prolong service life, The effect of easy construction and post-maintenance

Pending Publication Date: 2022-03-04
宁夏兴昊永胜盐业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a preparation method of a trench with an anti-seepage function, which is used to solve the problems of high water permeability, easy cracks, poor corrosion resistance and durability of the base of the original trench

Method used

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  • Preparation method of trench with anti-seepage function
  • Preparation method of trench with anti-seepage function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] A method for preparing a trench with an anti-seepage function, comprising the following steps:

[0052] 1) Before construction, first determine the excavation line according to the drawings and the site conditions, and carry out excavation construction according to the excavation line, remove the soil layer, clean up the floating dust, silt, and sundries on the surface of the U-shaped foundation trench, tamp the bottom, and do a good job of waterproofing Drainage measures, keep the foundation groove dry, and leave a certain slope on both side walls to prevent collapse during vibration.

[0053] 2) After the groove is qualified, lay a composite soil layer with a thickness of 250mm at the bottom of the foundation groove. The above-mentioned composite soil layer is composed of clay, lime and fine sand, and its weight ratio is 1:2.5:5; the water content is controlled at 15%. The above-mentioned lime is slaked lime, and the particle size shall not be greater than 5mm; the p...

Embodiment 2

[0060] In this embodiment, epoxy mortar is also laid in the trench structure for anti-corrosion treatment, so the preparation method of the trench with anti-seepage function specifically includes the following steps:

[0061] 1) Before construction, first determine the excavation line according to the drawings and the site conditions, and carry out excavation construction according to the excavation line, remove the soil layer, clean up the floating dust, silt, and sundries on the surface of the U-shaped foundation trench, tamp the bottom, and do a good job of waterproofing Drainage measures, keep the foundation groove dry, and leave a certain slope on both side walls to prevent collapse during vibration.

[0062] 2) After the groove is qualified, lay a composite soil layer with a thickness of 200mm at the bottom of the foundation groove. The above-mentioned composite soil layer is composed of clay, lime and fine sand, and its weight ratio is 1:2:4; the moisture content is con...

Embodiment 3

[0071] In this embodiment, the difference between the preparation method of the trench with anti-seepage function and embodiment 2 lies in the following steps:

[0072] Step 2) After the groove is qualified, lay a composite soil layer with a thickness of 250mm at the bottom of the foundation groove. The above-mentioned composite soil layer is composed of clay, lime and fine sand, and its weight ratio is 1:3:6; the moisture content is controlled at 17%.

[0073] Step 3) Lay a polyethylene geomembrane with a thickness of 0.8 mm on the composite soil layer as an anti-seepage membrane for anti-seepage treatment, and lay the bottom and side walls of the trench at the same time.

[0074] Step 4) Lay a lime-soil cushion with a thickness of 90 mm on the anti-seepage membrane, and ensure that the compaction coefficient is ≥ 0.97. The above-mentioned lime-soil cushion layer adopts notoginseng lime-soil, and the water content is controlled at 22%.

[0075] Step 5) first take 1050 parts...

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Abstract

The invention provides a preparation method of a trench with an anti-seepage function, and belongs to the technical field of constructional engineering.The preparation method comprises the steps that a U-shaped foundation trench is provided, and a concrete layer is laid at the bottom of the U-shaped foundation trench; providing an anti-seepage film, and laying the anti-seepage film on the surface of the concrete layer; providing a lime soil cushion layer, and paving the lime soil cushion layer on the surface of the impermeable film; providing concrete slurry, and pouring the concrete slurry into the U-shaped mold bound with the U-shaped reinforcing ribs to form a concrete layer; the concrete slurry contains 2-5 wt% of an additive, and the additive comprises calcium lignosulphonate, short carbon fibers, triethylene glycol monomethyl ether and n-propyl thiophosphoric triamide. The preparation method provided by the invention can effectively solve the problems of leakage and corrosion of a foundation caused by waste liquid, leaked liquid and the like, improves the stability and strength of the trench structure, improves the anti-leakage effect, remarkably enhances the corrosion (salt corrosion) resistance and low-temperature anti-freezing and anti-cracking performance, is easy to construct and maintain in the later period, and effectively prolongs the service life of the trench.

Description

technical field [0001] The invention relates to the technical field of construction engineering, in particular to a method for preparing a trench with an anti-seepage function. Background technique [0002] With the development of the chemical industry, there are more and more pool structures such as underground fire pools, sedimentation tanks, sewage pools, and accident pools in various chemical engineering construction projects, and they are also becoming more and more complex. In recent years, due to the gradual improvement of the public's awareness of environmental protection, higher requirements have been put forward for the impermeability of pool structures such as accident pools and wastewater treatment pools. However, it is not enough to impervious to the above-mentioned pool structures, and attention should also be paid to the secondary parts between the pool structures, such as trenches, floors, and water retaining cofferdams. Due to its concealment and unrecovera...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E03F3/06E03F3/04C04B28/00C04B111/20
CPCE03F3/06E03F3/046C04B28/00C04B2111/00146C04B2111/00508C04B2111/00612C04B2111/20C04B14/02C04B14/068C04B18/08C04B2103/302C04B24/18C04B14/386C04B24/023C04B24/003C04B24/281C04B2103/0068
Inventor 代良云尚继荣徐金荣张建东
Owner 宁夏兴昊永胜盐业科技有限公司
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