Tidal flat photovoltaic power station construction method

Abstract

The invention discloses a tidal flat photovoltaic power station construction method. The tidal flat photovoltaic power station construction method comprises the following steps that (1), tidal flat land is flattened in a partitioned mode, and the elevation values of the flattened partitions are repeated as much as possible on the premise of controlling the maximum filling thickness of each partition to be smaller than or equal to 0.4 m; (2), the length of a support foundation needed by each land partition is determined according to the elevation difference between the elevation value of the flattened land partition and the designed flood level; and (3), holes are guided in the flatted land partitions, then profile steel is inserted into the holes, casting in situ of the support foundationsis conducted partition by partition, and the profile steel of the same length is adopted by the land of the same partition. The mode of flattening the tidal flat land in the partitioned mode is adopted, so that the length specifications of the support foundations are controllable, the production and construction difficulty of the support foundations is reduced, and the construction cost is greatly reduced and the construction quality is improved on the premise of ensuring flood control safety of photovoltaic equipment; and the tidal flat photovoltaic power station construction method saves the prefabrication cost of the support foundations, meets the structural load requirement and reduces the influence of drawing off of floodwater on the discharged flow of a watercourse to the maximum extent at the same time.

Description

technical field [0001] The invention relates to a construction method for a photovoltaic power station, in particular to a construction method for a tidal flat photovoltaic power station. Background technique [0002] In recent years, as environmental problems have become increasingly prominent, the concept of green development has gradually gained popularity, the development direction and navigation indicators of the global economy have shifted to a low-carbon economy, and the solar photovoltaic industry has attracted attention from all over the world. At the same time, according to the national photovoltaic industry construction plan, a large area of ​​wasteland with extremely low utilization rate such as tidal flats will be used to carry out the construction of photovoltaic power stations. [0003] At this stage, affected by the government's land policy, other photovoltaic power stations except for the barren hills and Gobi Desert that have no development value must be de...

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Problems solved by technology

[0003] At this stage, affected by the government's land policy, other photovoltaic power stations except for the barren hills and Gobi Desert that have no development value must be developed according to the development model of agricultural photovoltaics. However, the following problems exist in the construction of photovoltaic power stations in tidal flat areas: 1) The flood season needs to be considered Flood control impact of design flood level submersion. Although the topography of tidal flats is small, the elevations of the foundation points are inconsistent. According to the conventional construction plan, it is necessary to customize the corresponding elevation of the support foundation according to each local elevation point, so as to meet the uniformity of the top of the support foundation. To control the flood level, the customized cost and construction cost of the support foundation are too high; 2) The geological conditions of the tidal flat area are special, the surface layer is mostly plain fill, and the thickness of the covering layer is only 0.5-1.0m; the middle layer is mostly medium-density or high-density Pebbles, the thickness of which is mostly 1.0-2.0m

As the plain fill is relatively shallow, and the underlying layer is medium-density or high-density cobblestone, it is difficult to use conventional static pressure pile drivers with PHC prestressed pipe piles for foundation construction under such geological conditions, and the construction is difficult

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