The buried depth of the spiral pile of photovoltaic support

Do energy piles have a high heat transfer and bearing capacity?

Author to whom correspondence should be addressed. Energy piles, combined ground source heat pumps (GSHP) with the traditional pile foundation, have the advantages of high heat transfer efficiency, less space occupation and low cost. This paper summarizes the latest research on the heat transfer and bearing capacity of energy piles.

Can a full-scale energy pile provide thermal injection performance?

A field test was performed to investigate the thermal injection performance of a full-scale energy pile for USES. A bridge deck embedded with heat exchange tubes was employed for solar energy collection, which can provide thermal energy to the energy pile.

What are the different types of photovoltaic support foundations?

The common forms of photovoltaic support foundations include concrete independent foundations, concrete strip foundations, concrete cast-in-place piles, prestressed high-strength concrete (PHC piles), steel piles and steel pipe screw piles. The first three are cast-in situ piles, and the last three are precast piles.

Can energy piles be used for underground energy exchange?

Energy piles, which are combinations of BHEs with pile foundations, could be used for underground energy exchange without the need for drilling holes [ , , ]. Energy piles have been combined with ground source heat pump (GSHP) systems for building heating or cooling for years [ 33 ].

Can photovoltaic support steel pipe screw piles survive frost jacking?

To study the frost jacking performance of photovoltaic support steel pipe screw pile foundations in seasonally frozen soil areas at high latitudes and low altitudes and prevent excessive frost jacking displacement, this study determines the best geometric parameters of screw piles through in situ tests and simulation methods.

How do S-shaped energy piles adapt to different soil layers?

S-shaped energy piles can be adapted to different soil layers by adjusting the pitch in the water-rich areas. Water content in the strata is unevenly distributed with depth ( Figure 9 ). Below the ground surface, the water content of shallow soft soils depends on climate and rainfall.