Briefly outline with the use of neat labelled sketches

Reference no: EM13535613

It is proposed to make a new pedestrian access running directly south from University Square to Silvertown. The physical barriers that need to be overcome are the Royal Docks and the City Airport runway.

The design team propose that a bridge will be used to cross the docks and a tunnel will go under the runway.

You can assume ground conditions similar to the site investigation report given in Task 1.

a) You are required to describe and justify the construction methods you propose to build the bridge. Assume for the bridge that piers will be constructed within the dock and the deck will be a series of steel beams with a concrete deck. Use neat labelled sketches to show the sequence of construction.

b) Briefly outline with the use of neat labelled sketches the three following different methods for constructing tunnels:

• Preconstruction & horizontal jacking method

• Cut & cover tunnel

• Bored tunnel

Then select and justify the most appropriate method for the airport tunnel(s).

c) Briefly outline the following dewatering techniques and their application. Then justify the most appropriate methods to help dewater (i) the bridge pier foundations and (ii) the tunnel:

• Sump & pump

• Well-pointing

• Ground freezing

• Compressed air

• Grouting methods

Reference no: EM13535613

Questions Cloud

Estimate the discharge rate of the pipeline : Reservoir A (water surface elevation = 1300 ft) is connected to reservoir B (water surface elevation=250 ft) by 6,000 ft of 14 inch diameter cast iron pipe (e = 0.005 ft. Neglecting all minor losses

Include a sketch of each cross-section drawn to scale : Problem Statement: A singly reinforced rectangular beam is to be designed, with effective depth approximately 1.5 times the width, to carry a service live load of 2000 lb/ft in addition to its own weight, on a 24 ft simple span. The ACI Code load fac..

Design the shear reinforcement : Problem Statement: A rectangular beam having b = 10 in. and d = 17.5 in. spans 15 ft face to face of simple supports. It is reinforced for flexure with three

Identify the contaminants on site and explain : Identify the contaminants on site and explain their hazards in relation to the proposed design and its construction. Describe the ‘In-situ’ and Ex-situ’ treatments that could be used and their relative merits

Briefly outline with the use of neat labelled sketches : It is proposed to make a new pedestrian access running directly south from University Square to Silvertown. The physical barriers that need to be overcome are the Royal Docks and the City Airport runway.

Determine the pressure between the sleeve and cylinder when : Maximum shear stress both in the tube and sleeve is 16000 psi. Calculate the fluid pressure, and determine the pressure between the sleeve and cylinder when the fluid pressure is absent.

What is normally consolidated clay : Compute the nominal shear strength of an M10 x 7.5 of A 572 grade 65 steel

Compute the probable settlement of the building : The construction of a multi storied building started in January 1989 & was completed in June 1990. The total consolidation settlement of the building was estimated to be 8 cm.

Determine the quantify the losses in this system : At Point A, in a pipeline carrying water (γ=62.4 lb/ft^3) the diameter is 4.0 ft, the pressure is 10 psi, and the velocity 4 ft/s. At point B, 6ft higher than point A, the diameter is 2 ft and the pressure is 2ps

User Account

All Pages