170
In order to determine the slopes of the excavation, depth is required. Since below
the bottom of the excavation, pressure is both considered to be passive and have the
same slope. The slope of the pressure profile above the reversal point is calculated
from the standard equation for the slope, using L 3 as the rise and ϒhk a as the run (a
value equal to the lateral earth pressure, expressed this way for the purpose of cancelation). Thus, the slope of the pressure profile below the reversal point can be
calculated similarly, using L 4 as the rise and the product of ϒL 4 k p as the run. Because
the slopes are the same, the two equations can be equated. Rearranging to solve for L 3 ,
L
hk
L
L k
3
4
4
b
b
a
p
L
hk
k
3
6
04724
2 12
1 337
a
p
ft
ft
.
.
.
The necessary embedment depth is
1 337
5
6337
.
.
ft
ft
ft
The total required soldier pile length is
6 337
6
12 337 13
.
.
ft
ft
ft
ft assumed
So, I have determined that the soldier pile (W12 × 26) should be 13 ft long, and
the perpendicular support (w8 × 12) should be 6 ft long as the support for structurally sound maglev construction.
Construction Cost Estimate Comparison
Order of magnitude cost estimate was performed by using HCSS (Heavy Bid) software standard union rate of New York State locals with a project of 10% general
condition, 10% overhead and profit, and 3% contingency over the hard cost of labor,
materials, and equipment comparing between maglev infrastructure and traditional
infrastructure system for a sample of 100 miles long and 128 ft wide (12 ft wide of
4 lanes in each direction, two-sided 10 ft service space, and 6 ft median in the center
of the road). To construct the long-lasting and sophisticated underground maglev, I
have performed load-resistant factor design (LRFD) calculation and selected
W24 × 84 beam wherein the continuous maglev underground runs (structural beam)
are structurally sound. Then I have calculated the required shoring concept for
100 miles long and 128 ft wide construction cost considering standard excavation
up to 6 ft deep, with appropriate shoring with minimum embedment depth L 4 being
9 Invisible Roads and Transportation Engineering
In order to determine the slopes of the excavation, depth is required. Since below
the bottom of the excavation, pressure is both considered to be passive and have the
same slope. The slope of the pressure profile above the reversal point is calculated
from the standard equation for the slope, using L 3 as the rise and ϒhk a as the run (a
value equal to the lateral earth pressure, expressed this way for the purpose of cancelation). Thus, the slope of the pressure profile below the reversal point can be
calculated similarly, using L 4 as the rise and the product of ϒL 4 k p as the run. Because
the slopes are the same, the two equations can be equated. Rearranging to solve for L 3 ,
L
hk
L
L k
3
4
4
b
b
a
p
L
hk
k
3
6
04724
2 12
1 337
a
p
ft
ft
.
.
.
The necessary embedment depth is
1 337
5
6337
.
.
ft
ft
ft
The total required soldier pile length is
6 337
6
12 337 13
.
.
ft
ft
ft
ft assumed
So, I have determined that the soldier pile (W12 × 26) should be 13 ft long, and
the perpendicular support (w8 × 12) should be 6 ft long as the support for structurally sound maglev construction.
Construction Cost Estimate Comparison
Order of magnitude cost estimate was performed by using HCSS (Heavy Bid) software standard union rate of New York State locals with a project of 10% general
condition, 10% overhead and profit, and 3% contingency over the hard cost of labor,
materials, and equipment comparing between maglev infrastructure and traditional
infrastructure system for a sample of 100 miles long and 128 ft wide (12 ft wide of
4 lanes in each direction, two-sided 10 ft service space, and 6 ft median in the center
of the road). To construct the long-lasting and sophisticated underground maglev, I
have performed load-resistant factor design (LRFD) calculation and selected
W24 × 84 beam wherein the continuous maglev underground runs (structural beam)
are structurally sound. Then I have calculated the required shoring concept for
100 miles long and 128 ft wide construction cost considering standard excavation
up to 6 ft deep, with appropriate shoring with minimum embedment depth L 4 being
9 Invisible Roads and Transportation Engineering