Wenger 72944 Especificações descarregar pdf (Página 249)

Section 6 The Selected Alternative Plan

EAA Storage Reservoirs Revised Draft PIR and EIS February 2006

6-21

6.4.2.1.4 Steel Sheet Pile

EM 1110-2-2504, Design of Sheet Pile Walls is used to design wing walls and

cofferdams. Yield strength of 50-ksi has been assumed for sheet pile design.

6.4.2.1.5 Structural Steel

The Manual of Steel Construction, Allowable Stress Design, 9th Edition, is used

to design swales and struts for cofferdams. Yield strength of 50-ksi is assumed

for structural steel.

6.4.2.2 Culverts

6.4.2.2.1 General

The Project includes nine gated multi-barrel concrete box culverts. Proposed

culvert structures are standardized to simplify their design, construction, and

future operations and maintenance. At roadway crossings, culvert designs are in

accordance with AASHTO and FDOT standards. Refer to the structural plates

for the typical culvert arrangement, hydraulic design data, flow capacities and

sizes.

The gated culverts will include precast reinforced concrete box culverts with a

front gate monolith, rear headwall, and steel sheet pile wing walls. Foundations

include typical bedding requirements. The gate wells include an operation

platform to support the gate hoist mechanisms. Gate hoists include both local

and remote controls. Separate head and tail water gage stations are installed

adjacent to the structures. Stone protection is used for upstream and

downstream channel erosion control.

Culvert installation is performed using the cut-and cover method, with

sequential partitioned steel sheet pile cells. Cell sizes are limited by

groundwater control using well point systems. Gate wells may require a sealed-

bottom cofferdam system.

6.4.2.3 Pump Stations

6.4.2.3.1 General

Drawings have been provided in Appendix A to illustrate the main features of

the two new pump stations, S-610 and S-611, with separate plates included to

show typical plans and elevations for each station. Also included are the

hydraulic data sheets with number of pumps, pumps sizes, and operational

water surface levels.

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Wenger 72944 Especificações Página 249