Unit 8. Excavation 2.
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Jos Contractors
The Excavation Process
After your site is laid out, we will dig and remove earth for the foundation. Many jobs are general excavations that use standard machinery. Others may be special excavations requiring explosives or other equipment.
Please verify that the payline is marked accurately. This way we will only remove what is necessary. We will haul the earth and deposit it where you choose. Please note that soil swell can lead to more earth being hauled from that site. This can lead to additional charges for removal.
We will also talk to you about the best way to protect the dig site. The method selected depends on site conditions and project budget. Laying timber lagging between steel soldier piles is inexpensive and effective. Interlocking sheet piling creates a solid steel wall, if there is water nearby we may need to construct a concrete slurry wall. A tieback can protect a sloping excavation site while keeping it free or obstructions.
1. Before you read the passage, talk about these questions
1. What is another word for removing earth?
2. What is one way of protecting the dig site?
Reading
2. Read the website from a construction company about excavation. Then, mark the statements as true (T) or false (F).
1_ General excavations usually require explosives.
2_ Soil swell can increase hauling costs.
3_ Timber lagging is used with interlocking sheet piling.
Vocabulary
3. Match the words (1-7) with the definitions (A-G).
1_ dig 5_ steel soldier piling
2_ haul 6_ deposit
3_ sloping 7_ concrete slurry
4_ interlocking sheet piling
A. running evenly upward or downward
B. a method of supporting an earth wall using sheets of steel to from a single wall in the ground
C. a material used to make protective excavation walls when the earth is very wet
D. to remove earth from the ground
E. sections of steel driven into the ground, used with timber sheeting to protect an excavation
F. to carry something from one place to another
G. to place something somewhere after it was moved from its original location
4. Read the sentence and choose the correct word.
1. The contractor will need to use explosives in this special excavation / general excavation.
2. Mark the tieback/ payline correctly so the excavator doesn’t remove more earth than we need.
3. Run some timber lagging / concrete slurry between those soldier piles to form a wail.
4. Soil swell/ Deposit often leads to higher than expected hauling costs.
5. A general excavation/ special excavation is one that can be completed using regular machines.
6. The subcontractor will use a tieback / soil swell here to keep the excavation area clear.
5. Listen and read the website from a construction company about excavation again. What will the site owner need to do during the process?
Listening
6. Listen to a conversation between two construction company managers.Choose the correct answers.
1. Why will a steel wall not work at the site?
A. There is not enough room.
B. The client cannot afford it.
C. It would not be strong enough.
D. The neighbors will not allow it.
2. What will the man likely do next?
A. send a report to the client
B. review the excavation plans
C. order the materials for a steel wall
D. call the neighboring property owners
7. Listen again and complete the conversation.
Manager 1: Julie, have you looked over the plans for the Dobson property excavation?
Manager 2: Yes, I was just checking them out. What are we going to use to protect and support the site?
Manager 1: That’s what I 1________ _________ __________ you about. Do you have any ideas?
Manager 2: Well, a steel wall of interlocking 2______________ would be really strong.
Manager 1: That 3____________ ____________ ___________ But, the fact is, we don’t have enough space for that kind of wall.
Manager 2: Hmm, I suppose you’re right 4_________ _______ ________a steel tieback system with a smaller wall inside?
Manager 1: That might be possible it would give us more 5 _____ ______ _____.
Manager 2: We’ll have to 6 ________ _________ from the neighboring property owners. We’ll need to place the ends of the tieback there.
Manager 1: That could be a problem. I’ll go give them a call.
Manager 2: Sounds good. Let me know how it goes.
Speaking
8. With a partner, act out the roles below based on Task 7, Then, switch roles.
USE LANGUAGE AS:
That would be nice, but…
Could we use…
We’ll have to
Student A: You are a construction company manager. Talk to support an excavation site.
· how to support an excavation site
· why one method will not work
· why another method may be better
Student B: You are a construction company manager. Talk, to Student A about how to support an excavation site
Writing
9. Use the website and the conversation from Task 8 to fill out the construction manager’s notes.
Property Excavation
Support option 1__________________________________________________
Problem_________________________________________________________
Support option 2__________________________________________________
Problem_________________________________________________________
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