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Demolition Equipment/Technique Available
The document discusses high reach demolition excavators as a method for building demolition. It provides details on the specifications and attachments of high reach excavators, which can reach heights up to 57 meters. The document outlines the methodology of side by side and top to bottom demolition techniques used with high reach excavators. It also presents case studies and advantages of high reach excavators over other demolition methods like explosives or wrecking balls, noting they allow for controlled, efficient demolition with less risk.
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Demolition Equipment/Technique Available
- 1. High Reach DemolitionExcavator Girish Kumar Singh School Of Planning and Architecture, New Delhi
- 2. High Reach DemolitionExcavator Methods To Demolish The Building • Detonation method • Cut And Take Down Method • Concrete Recycler. • Manual Demolition • With the help of machines • Wrecking Ball Crane • High Reach Demolition Excavator • Concrete Evaporator
- 3. High Reach DemolitionExcavator Explosive Demolition • High Risk Factor • Time Taken • Produce Distortion • Expensive • Chances of error • Need of experts • Error may leads to • No demolition • Loss of life's • Quick Demolition
- 4. High Reach DemolitionExcavator Wrecking Ball Crane • Produce Repeated Vibration • Less Control On Moving Ball • More force required • Can’t be used on Steel structure • Waving action of ball leads to heavy loss • Ball is heavy so give good impact but also become uncontrollable • Different ball sizes to be used on different structures
- 5. High Reach DemolitionExcavator CUT AND TAKE DOWN METHOD
- 6. High Reach DemolitionExcavator Concrete Recycler • Cut Concrete With the help of water pressure • Simultaneously it suck the Washed concrete • It is the most energy Efficient. • These machines are fully automated. • It only can be used for Concrete Structure
- 7. High Reach DemolitionExcavator High Reach Demolition Excavator • First used in 1970 in UK • No distortion to the surroundings • Less Risk Factor • Work From the ground • Different attachments for various works • Quick and reliable • Controlled Demolition
- 8. High Reach DemolitionExcavator Specifications 57 m NON WORKING ZONE • Latest excavator can reach upto 57m. • All demolition equipment's like shear, hammer can be attached to this 55m
- 9. High Reach DemolitionExcavator Methodology Adopted Side By Side Demolition • First side of the building is demolished to make the structure weak. • Then in the circular pattern it is repeated and then the middle structure is demolished. • Top to bottom and side by side demolition take place and remains of building is excavated during the demolition
- 10. High Reach DemolitionExcavator Methodology Adopted Top to Bottom • This process is used where the structure is small in width. • First the top portion is demolished Completely . • Then top to bottom method is adopted in order to complete the demolition of the building. • Mainly it is adopted on the structure which upto 15m in height. • Widely used to demolish the water tank and watch towers
- 11. High Reach DemolitionExcavator High Reach Demolition Excavator
- 12. High Reach DemolitionExcavator Critical Situation • When Building Height is more than the max. reached height of Excavator • Small excavator is installed on the roof and then building is demolished by the excavator from top to down.
- 13. High Reach DemolitionExcavator Hammer ATTACHMENTS Grapples Multiprocessor Pulverizers Buckets Shear
- 14. High Reach DemolitionExcavator • Grapples are the ideal material handling option for Hydraulic Excavators • Max. Handling Weight 2614.5 Kg • Force Produced 2.4 sh.ton • Hammer Produce a Repeated a Impulse to break the structure • Impact energy is 12000ft-lbf • 275-450 Blows per minutes Grapple Hammer
- 15. High Reach DemolitionExcavator MULTI-PROCESSORS Secondary pulverizers process already-demolished concrete, separating out rebar and reducing concrete to small, ready-to-recycle chunks. Primary Pulverizer jaws demolish and reduce concrete in a single step, separating rebar from concrete and eliminating the need for secondary processing before recycling.
- 16. High Reach DemolitionExcavator Shear jaws cut and reduce angle iron, channel iron, beams, pipe, rebar, cable and tires. Tank Shear jaws make short work of storage tanks and plate steel. Specially-designed jaws produce straight, smooth cuts on barges, r ailway cars and grain, water, oil and fuel tanks.
- 17. High Reach DemolitionExcavator Universal jaws are ideal for precision demolition, sectioning concrete and down-sizing concrete for crushers. Cleanly cuts segments of concrete with rebar cut flush to the concrete.
- 18. High Reach DemolitionExcavator PULVERIZERS Pulverizers for Cat Excavators are highly effective work tools for processing concrete in a single step. Closing force tip 187ton Closing force rebar cutter 387tons Capacity Concrete thickness 35.4 in
- 19. High Reach DemolitionExcavator SHEAR • Produce tremendous amount of force to cut the steel as well as concrete structure • Closing force 850 ton on tip • Closing force 1058 tons at rebar
- 20. High Reach DemolitionExcavator Bucket • It have a large spread area • Used to apply force on a large surface • Also used to grab waste on the site
- 21. High Reach DemolitionExcavator Case Study • Old Myer Building (corner of William and Murray Streets) Horseshoe Bridge, Perth, Western Australia • Total of 13 stories Tower • 120,000-square-foot is the total area. • CAT 385 CL Ultra High Demolition (UHD) Excavator was used. • 12 week time taken in full demolition.
- 22. High Reach DemolitionExcavator THANK YOU