Page 14 - Analysis and Design of Energy Geostructures

List of symbols

Roman symbols
Symbol Variable name Unit measure
Cross-sectional area m 2
A
Cross-sectional area of pile base m 2
A b
Cross-sectional area of concrete m 2
A c
Effective area of concrete in tension m 2
A c;eff
2
Cross-sectional area of concrete in tension m
A ct
2
Equivalent cross-sectional area m
A eq
Plan area in which the thermal strain potential of soil is in excess of that m 2
A exc
of piles
Cross-sectional area of piles m 2
A EP
Skempton pore water pressure coefficient
A f
Plan area of pile group m 2
A g
Area of the block shaft m 2
A g;s
Plan area of involved soil volume m 2
A inf
Constant
A L
Cross-sectional area of pipe m 2
A p
Cross-sectional area of reinforcement m 2
A r
Cross-sectional area of tensile reinforcement m 2
A rl
Cross-sectional area of shear reinforcement m 2
A rw
Minimum longitudinal reinforcement m 2
A r;min
0 Cross-sectional area of reinforcement working in tension m 2
A
r
Area of pile shaft m 2
A s
Area of body immersed in the fluid; interstitial surface area m 2
A si
Plan area of soil delimiting the shape of the pile group m 2
A soil
Total cross-sectional area of piles m 2
A t;EP
Plan area of soil influenced by the heat exchange m 2
A th;soil
Material parameter
A ZH
0 Distance m
AA
Aspect ratio of pile group
AR
Actual contact area m 2
~ A
Calibration factor Pa
A
Shape function
a
Design value of geometrical data of the structure Variable
a d
Material constant 1/ C

a exp
Material parameter
a L
Empirical constant
a M
Material parameter
a r
Compressibility index 1/Pa
a v
Constant value
B L
Breadth of foundation m
B r
Breadth of slab/strip foundation m
B slab
Material parameter
B ZH
Biot number
Bi
Calibration factor Pa
B
Shape function
b
xv