retaining wall & regrading of slope The Futurist, Scarborough - - PowerPoint PPT Presentation

The Futurist Theatre, Scarborough Methodology for demolition of the theatre, construction of new retaining wall & regrading of slope

The Futurist, Scarborough

Overview of site

This slide indicates the key features and buildings in and around the site

Kings Street Kings Steps Current Futurist The Mermaid Bland’s Cliff

The Futurist, Scarborough

Global stability works Removal of material from King Street car park to prevent risk of slip circle failure

• Place protection on footpath to King street and remove 2 nr. bollards where the road

narrows.

• Form vehicle entrance into King Street car park for lorries to turn. See Bryan G Hall drawing

16/369/ATR/002 on next slide.

• Backactor to be delivered to existing King Street car park via King Street.

The Futurist, Scarborough

The Futurist, Scarborough

Works to King Street car park including grading the top of the slope

• Saw-cut through the black-top surfacing to the car park on a line set out 10m from the wall to

the properties on Prospect Place

• Remove the blacktop surfacing and cart away via King Street.
• Excavate material from the car park to form a slope commencing at the rear of the boundary

wall to King Street and running down to the bottom of the first terrace working from the top

• f the slope downwards – see drawing below;

The Futurist, Scarborough

Graphic showing line of earthworks cut through King Street car park

The Futurist, Scarborough

Section showing profile of material to be removed during first phase of earthworks

The Futurist, Scarborough

Graphic showing material removed from car park following first phase of earthworks

The Futurist, Scarborough

Works to Foreshore Road

• At the same time as the works to King Street car park are progressing, the street works to

Foreshore Road will commence. The work involves the following; ➢ Relocation of an existing bus shelter ➢ Removal of two existing central islands to create a temporary pedestrian walkway and a path for vehicles exiting the site. ➢ Erection of temporary site hoarding complete with entrance and exit gates. ➢ Protection of the existing buried services in the public footpath by overlaying with timbers and road-plates.

The Futurist, Scarborough

Works to Foreshore Road to create the one way servicing arrangement

The Futurist, Scarborough

Global stability works

Infill rooms with lean mix concrete to a depth of 1.5m

The Futurist, Scarborough

Global stability works

Infill room and staircore in south-west corner of building with lean-mix mass concrete

The Futurist, Scarborough

Global stability works

Infill room containing buttresses with lean mix concrete to a depth of 1.5m

The Futurist, Scarborough

Global stability works

Infill room containing buttresses with lean mix concrete to a depth of 1.5m Install temporary props to existing retaining wall to Blands Cliff

The Futurist, Scarborough

Graphic showing counterweight and additional buttressing to existing retaining wall

Install material to add counterweight and additional buttressing to existing retaining wall

The Futurist, Scarborough

Demolition works

Erect scaffold to give access to roof of building. Construct scaffold fan to provide protection to corner of shelter

The Futurist, Scarborough

Demolition sequence

Following the reduce level dig to the upper plateau on Kings Street and installation of the mass concrete ballast, we will commence ‘ of r p' to full internals of the structure with skips placed outside the main entrance for debris removal. Mechanical demolition will then commence to phase 1 working in from the north east corner using a specialist D-Rig Hy reach excavator with demolition attachments. When phase 1 is complete the high reach can remove the flat roof section of Phase 2 and then proceed to the front wall reducing it to first floor height . A scaffold platform will be built off the roof steel work to facilitate the removal of the asbestos roof sheets to the theatre.. When the roof sheets have been removed the trusses will be removed using a cherry picker, Hy-reach excavator and cutting tools to safely lower the trusses to the ground. Following the truss removal the outer walls to phase 3 and 4 will be taken down to first floor level this is where the transitional steel beam spanning the seating is located, the exactor will be used to remove the seating tier to level

• ne removing all timbers and secondary steels to the seating level, once this

is complete the walls will be reduced to allow a crane to access site and lift the main beam down to grade allowing it to be cut to size and removed from site. The same process will now be utilised to bring phase 5 and 6 to grade starting from the façade once again employing the crane to remove the 2 main steels spanning the seating section. All scaffold will then be removed from site and the remaining walls folded into the footprint of the structure, the crusher will be delivered to site to crush the material to 6F2 and stockpiled on site. Slabs and footings will be broken and also crushed to 6F2 and material re- laid to ensure no leading-edge hazards remain. All wastes will be removed form site at regular intervals and dust will be suppressed via the use of 2 Dust Cannons one at the rear and one on the working face of the demolition..

The Futurist, Scarborough

Processing of material from demolished buildings

Concrete crusher to be positioned

• n on footprint of Mermaid
• building. Stockpile of crushed

hardcore to be created on footprint of buildings.

The Futurist, Scarborough

Construction of new retaining wall

Install temporary sheet piles on the inside of existing retaining wall to Kings Steps to enable excavation of new retaining wall base

The Futurist, Scarborough

Construction of new retaining wall

Reinforce shutter and concrete new retaining wall Drainage to be installed behind new retaining wall

The Futurist, Scarborough

Backfill to retaining wall

Backfill between existing retaining wall and new retaining wall and grade slope. Fix topsoil retaining mat, spread topsoil and seed.

The Futurist, Scarborough

Drainage works

Drains to be installed as shown

• n Arup drawing

FUT-ARUP-ZZ-XX-DR-CD-003