Shallow buried foundation structures for wind turbines

A technology for wind turbines and infrastructure, applied in infrastructure engineering, construction, etc., can solve problems such as increased excavation costs, difficulty in bedrock excavation, and prolonged excavation construction period, so as to speed up the construction progress and reduce the cost of construction. The effect of small excavation depth and reduced construction cost

Active Publication Date: 2018-08-21
CHINA HYDROELECTRIC ENGINEERING CONSULTING GROUP CHENGDU RESEARCH HYDROELECTRIC INVESTIGATION DESIGN AND INSTITUTE
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  • Description
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  • Application Information

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Problems solved by technology

However, it is generally difficult to excavate the bedrock below the overburden layer in areas with thinner overburden layers. This will result in a substantial increase in excavation costs and a multiplied extension of the excavation construction period, which is not suitable for the economical and rapid development of wind power generation.

Method used

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  • Shallow buried foundation structures for wind turbines
  • Shallow buried foundation structures for wind turbines
  • Shallow buried foundation structures for wind turbines

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Embodiment Construction

[0015] Such as figure 1 , figure 2 Shown is a shallow-buried foundation structure for wind power generating sets with fast construction progress and low construction cost provided by the present invention. The shallow-buried foundation structure includes a concrete expansion foundation basic body 1, and the shallow-buried foundation structure also includes an excavation pit 2 of moderately weathered limestone, based on the upper surface of the moderately weathered limestone layer, the moderately weathered limestone The excavation depth of the rock excavation foundation pit 2 is between 0.3m and 1.0m, and the concrete expansion foundation basic body 1 is arranged in the above-mentioned moderately weathered limestone excavation foundation pit 2 through the anti-detachment layer structure 3 . Combining with the characteristics of moderately weathered limestone strata with good lithology and high bearing capacity, this application combines the characteristics of the bedrock in t...

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Abstract

The invention discloses a shallow foundation structure, in particular to a shallow foundation structure for a wind driven generator set, and belongs to the technical field of design and construction of wind-power engineering buildings. The invention provides the shallow foundation structure for the wind driven generator set, and the shallow foundation structure is high in construction speed and low in construction cost. The shallow foundation structure comprises a concrete expansion foundation body, and further comprises a moderate weathered rock excavation pit, wherein based on the upper surface of a moderate weathered rock stratum, excavation depth of the moderate weathered rock excavation pit ranges from 0.3m to 1.0m; and the concrete expansion foundation body is arranged in the moderate weathered rock excavation pit through an anti-dropping layer structure.

Description

technical field [0001] The invention relates to a shallow-buried foundation structure, in particular to a shallow-buried foundation structure for a wind power generating set, and belongs to the technical field of wind power engineering building design and construction. Background technique [0002] At present, the most commonly used method for building foundations of wind turbines in areas with thin overburden is to use natural foundations as the foundation bearing layer, then bury the artificial concrete foundation to a depth of about 3.5 meters, and then cover and backfill the artificial concrete foundation The soil is compacted to complete the construction of the foundation. Typically, the overburden over the existing thinner overburden bedrock is generally shallow, with most overburdens being less than 2.0 meters in actual thickness. In order to meet the checking calculation requirements of wind turbine foundation design stability, according to experience, the foundatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D27/42E02D27/44
Inventor 屈宋源邓阳廖心言
Owner CHINA HYDROELECTRIC ENGINEERING CONSULTING GROUP CHENGDU RESEARCH HYDROELECTRIC INVESTIGATION DESIGN AND INSTITUTE
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