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Greening method of high-water-level coast dredger fill

A technology of blowing soil and high water level, which is applied in the field of landscaping, can solve the problems of poor salt drainage and drainage, short green landscape maintenance time, etc., and achieve the effects of ensuring durability, promoting exchange capacity, and increasing organic matter content.

Inactive Publication Date: 2018-04-27
天津市德宇生物工程技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a greening method for high-water level seaside dredging and filling soil with long-lasting effect, convenient construction, mechanized operation, simple maintenance, low cost and wide application range. Isolation cushion and salt drainage are arranged on the original water level. Pipes, using the overall isolation of the green area, the regional control of the microcirculation system, and the creation of a suitable environment for plants, overcome the problems of poor salt drainage and drainage after the use of high-water level dredging and filling soil in traditional greening technology, and the short maintenance time of greening landscapes, etc. , and it is convenient for mechanized operation, which can significantly improve the level of greening and expand the scope of greening

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  • Greening method of high-water-level coast dredger fill

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Embodiment 1

[0032] A greening method for dredging and filling soil in a high water level coastal area, comprising the following steps:

[0033] 1) Collect dredging fill and expose to the sun to remove water: collect 600m 3 The dredged fill soil is piled high, exposed to the sun for 4 days to drain, and the moisture content of the dredged fill soil is reduced to 25%;

[0034] 2) Improving dredger fill: mix the raw dredge fill soil with composted and fermented sludge from urban sewage plants at a volume ratio of 1:0.3, and add 18kg of desulfurized gypsum powder to mix evenly;

[0035] 3) Lay the isolation cushion: level the land in the area to be greened, compact it, and lay a 10cm thick isolation cushion with gravel;

[0036] 4) Laying drainage and salt discharge pipes: reasonably lay PVC drainage and salt discharge pipes with a diameter of 15cm according to the greening location and direction, with a slope of 0.3%, and small holes are opened on the drainage and salt discharge pipes and w...

Embodiment 2

[0041] Located in the dredging soil greening demonstration site near Ganghong Road, Nangang Industrial Park, Binhai New Area, Tianjin, with a total area of ​​2000m 2 , using this greening method for greening, according to the attached figure 1 The construction model diagram shown in the construction:

[0042] 1) Collect dredging fill and expose to the sun to remove water: collect 600m 3 The dredged fill soil is piled high, exposed to the sun for 5 days and drained until the moisture content of the dredged fill soil drops to 15%;

[0043] 2) Improvement of dredger fill: mix the original soil of dredge fill with composted and fermented sludge from urban sewage plants at a volume ratio of 1:1 to form a 2m 3 Mix soil, add 20kg desulfurized gypsum powder at the same time and mix evenly;

[0044] 3) Laying isolation cushion 1: Level and compact the area to be greened (length 100m, width 20m), and lay a 5cm-thick isolation cushion with crushed stones with a diameter of 0.6-1.0cm;

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Abstract

The invention relates to the technical field of landscaping, and provides a greening method of high-water-level coast dredger fill. The method comprises the following steps of collecting dredger filland conducting airing to remove water, improving the dredger fill, laying an isolation pad layer, laying a drainage and salt-discharging pipe, laying a water spraying layer, laying improvement soil and planting greening plants. The greening method has the advantages that the isolation pad layer and the drainage and salt-discharging pipe are arranged on an original horizontal plane, a greening areais utilized to isolate the stacker as a whole, a microcirculation system is regionally controlled, an adaptive environment for plants is built, the problems of a traditional greening technology thatthe salt discharging and drainage effect is poor and the greenery landscape is maintained for a short time after high-water-level dredger fill is utilized are solved, and the plant survival rate can reach 95%; meanwhile, mechanized work is facilitated, the greening level can be obviously increased, and the greening range is expanded.

Description

technical field [0001] The invention relates to the technical field of landscaping, in particular to a greening method for dredging and filling soil in a high water level coastal area. Background technique [0002] In recent years, with the rapid development of coastal cities, especially port cities near the sea, there is a serious shortage of urban land. At present, a large number of land reclamation with mud blowing from the bay is used to alleviate the land resources needed for urban construction. The land formed by dredging and dredging of bay mud after land reclamation is called dredging and filling soil in harbor engineering, and it belongs to offshore sediments caused by water and soil erosion in the upper reaches of rivers. Possess some basic properties of soil, such as colloid, adsorption, substitution, etc. Since the dredger fill has not yet undergone physical weathering, chemical weathering, or biological weathering, and has not yet formed soil, it can only be ca...

Claims

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Application Information

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IPC IPC(8): A01B79/02A01G24/10A01G20/10A01G17/00
CPCA01B79/02A01G17/005
Inventor 徐峰张国刚
Owner 天津市德宇生物工程技术有限公司
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