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Question c) The available space for spoil storage is 41.7 m x 19.6 m. The volume likely to need to be excavated for the sequence of operations to work is 1,616m³ The material being excavated has the following properties y' - 16.0kN/m³ 4-31° The material material on which the pre-cast unit will be placed has the following properties: y' - 19.8kN/m³ 4-24° Assuming bearing capacity checks have already confirmed the dimensions are adequate, undertake complete calculations, in accordance with Eurocode 7, to determine if the proposed panel is suitable and input the resultant restoring moment against overturning. Yconc- 24kN/m³ The segments when connected do not provide a water tight seal. In heavy rainfall, water levels have been recorded up to 1/3 of the height of soil retained by these units and the unit weight of water is 10kN/m³ The inputted answer should be in kNm/m length of wall. For full marks workings MUST include complete calculations in accordance with BS EN 1997 (Eurocode 7) A contractor has approached you to determine the feasibility of their proposed methodology for bulk excavation of a basement. Due to limited access routes into the site the contractor is proposing to store large quantities of excavated material on site until the excavation equipment can be moved to allow access for muck away trucks. The contractor has pre-cast 'L' walls currently in use on another job that is due to finish in time for them to be used on the proposed project. The dimensions of the units are as shown in figure 1 and all measurements are in mm 2000 Side Elevation 400 200 1000 250 250 550 400 550 500 500 1500 Front Elevation

Question c) The available space for spoil storage is 41.7 m x 19.6 m. The volume likely to need to be excavated for the sequence of operations to work is 1,616m³ The material being excavated has the following properties y' - 16.0kN/m³ 4-31° The material material on which the pre-cast unit will be placed has the following properties: y' - 19.8kN/m³ 4-24° Assuming bearing capacity checks have already confirmed the dimensions are adequate, undertake complete calculations, in accordance with Eurocode 7, to determine if the proposed panel is suitable and input the resultant restoring moment against overturning. Yconc- 24kN/m³ The segments when connected do not provide a water tight seal. In heavy rainfall, water levels have been recorded up to 1/3 of the height of soil retained by these units and the unit weight of water is 10kN/m³ The inputted answer should be in kNm/m length of wall. For full marks workings MUST include complete calculations in accordance with BS EN 1997 (Eurocode 7) A contractor has approached you to determine the feasibility of their proposed methodology for bulk excavation of a basement. Due to limited access routes into the site the contractor is proposing to store large quantities of excavated material on site until the excavation equipment can be moved to allow access for muck away trucks. The contractor has pre-cast 'L' walls currently in use on another job that is due to finish in time for them to be used on the proposed project. The dimensions of the units are as shown in figure 1 and all measurements are in mm 2000 Side Elevation 400 200 1000 250 250 550 400 550 500 500 1500 Front Elevation

Fundamentals Of Construction Estimating
Fundamentals Of Construction Estimating
4th Edition
ISBN:9781337399395
Author:Pratt, David J.
Publisher:Pratt, David J.
Chapter10: Pricing Excavation And Backfill
Section: Chapter Questions
Problem 2RQ
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Question c) The available space for spoil storage is 41.7 m x 19.6 m. The volume likely to need to be excavated for the sequence of operations to work is 1,616m³ The material being excavated has the following properties y' - 16.0kN/m³ 4-31° The material material on which the pre-cast unit will be placed has the following properties: y' - 19.8kN/m³ 4-24° Assuming bearing capacity checks have already confirmed the dimensions are adequate, undertake complete calculations, in accordance with Eurocode 7, to determine if the proposed panel is suitable and input the resultant restoring moment against overturning. Yconc- 24kN/m³ The segments when connected do not provide a water tight seal. In heavy rainfall, water levels have been recorded up to 1/3 of the height of soil retained by these units and the unit weight of water is 10kN/m³ The inputted answer should be in kNm/m length of wall. For full marks workings MUST include complete calculations in accordance with BS EN 1997 (Eurocode 7)
Transcribed Image Text:Question c) The available space for spoil storage is 41.7 m x 19.6 m. The volume likely to need to be excavated for the sequence of operations to work is 1,616m³ The material being excavated has the following properties y' - 16.0kN/m³ 4-31° The material material on which the pre-cast unit will be placed has the following properties: y' - 19.8kN/m³ 4-24° Assuming bearing capacity checks have already confirmed the dimensions are adequate, undertake complete calculations, in accordance with Eurocode 7, to determine if the proposed panel is suitable and input the resultant restoring moment against overturning. Yconc- 24kN/m³ The segments when connected do not provide a water tight seal. In heavy rainfall, water levels have been recorded up to 1/3 of the height of soil retained by these units and the unit weight of water is 10kN/m³ The inputted answer should be in kNm/m length of wall. For full marks workings MUST include complete calculations in accordance with BS EN 1997 (Eurocode 7)
A contractor has approached you to determine the feasibility of their proposed methodology for bulk excavation of a basement. Due to limited access routes into the site the contractor is proposing to store large quantities of excavated material on site until the excavation equipment can be moved to allow access for muck away trucks. The contractor has pre-cast 'L' walls currently in use on another job that is due to finish in time for them to be used on the proposed project. The dimensions of the units are as shown in figure 1 and all measurements are in mm 2000 Side Elevation 400 200 1000 250 250 550 400 550 500 500 1500 Front Elevation
Transcribed Image Text:A contractor has approached you to determine the feasibility of their proposed methodology for bulk excavation of a basement. Due to limited access routes into the site the contractor is proposing to store large quantities of excavated material on site until the excavation equipment can be moved to allow access for muck away trucks. The contractor has pre-cast 'L' walls currently in use on another job that is due to finish in time for them to be used on the proposed project. The dimensions of the units are as shown in figure 1 and all measurements are in mm 2000 Side Elevation 400 200 1000 250 250 550 400 550 500 500 1500 Front Elevation
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