Exercise 22. Read the sentence and choose the correct word.

1. The contractor will need a test pit / surface investigation ten feet deep at this location.

2. Some soil will have to be moved to make this area sand/level.

3. Can that test pit/ drill rig make a hole 25 meters deep?

4. Conduct a subsurface investigation / topographic survey to determine the foundation requirements.

5. The drill rig / soil profile shows a mix of clay and silt in this area.

Exercise 23. Match the parts of the word-combinations which come from the texts of this unit. Translate them and use in your own sentences:

1) three-dimensional; a) data;
2) land; b) grid;
3) data; c) surveys;
4) property; d) measurements;
5) land survey; e) pressure;
6) space; f) boundaries;
7) construction layout; g) marks;
8) precision; h) axis;
9) air; i) technology;
10) reference; j) analysis;
11) a standard map; k) delineation;
12) rocket launch; l) maps;
13) horizontal; m) space position. Exercise 16.

Exercise 24. Read the conversation between a construction company manager and an employee. Choose the correct answers.

1. What is the conversation mainly about?

A. Why a drill rig is necessary?

B. When clay soil might be dangerous?

C. How to increase the strength of soil?

D. What to do for a subsurface investigation?

2. What will the woman do?

A. Dig test pits.

B. Arrange a drill rig.

C. Obtain a soil profile.

D. Order stronger soil if needed.

Contractor:Scott I need you to start that subsurface investigation tomorrow.

Employee:Okay. What will be involved in that?

Contractor:We need a complete soil profile. There is probably a good mix of soil types there.

Employee:All right. Should I line up a drill rig?

Contractor:There is no need. It’s just for a house. Several small test pits should be fine.

Employee:I see. How far down should the test pits go?

Contractor:Three or four meters should be enough.

Employee:Got it. Anything else I should watch out for?

Contractor:Knowing that area, there is probably some weak clay soil. Let me know if you come across any.

Employee:Will do. Do you want me to find some stronger soil to bring in?

Contractor:No. I will take care of that. Just get me the soil data.

Employee:Sure thing.

Exercise 25. In the previous dialogue an employee and a contractor speak about various soil types. Go online and fill in the table about types of soils.

http://www.eschooltoday.com/soils/types-of-soil.html

Exercise 22. Read the sentence and choose the correct word. - student2.ru

Fig.8. Six soil types

Soil types Advantages Disadvantages
Sandy soils    
Silty soils    
Clay    
Loamy soils    
Peaty soils    
Chalky soils    

Exercise 26. Find answers to the following questions about “Theodolite” on the Internet. Discuss your answers with your groupmates?

a) Why is a theodolite regarded as a key surveying instrument?

b) What does a theodolite consist of?

c) How is a theodolite adjusted?

d) How is a leveling instrument operated?

e) Why are self-levelling instruments preferred on sites?

f) What is a digital electronic level?

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