- Why excavation is done?
- What is borrow excavation?
- What is an excavation in construction?
- What are the different types of excavation?
- What excavation means?
- What is classified excavation?
- What is excavation answer?
- What is surplus in Social Studies?
- What are the requirements for excavation activity?
- What is the difference between digging and excavation?
- What’s another word for excavation?
- What is surplus excavation?
- What are the steps of excavation?
- What is a deep excavation?
- What is roadway excavation?
- What chronology means?
- What equipment is used for excavation?
- How excavation is done?
- What is subgrade preparation?
- What are ABC types of soil?
- What is excavation safety?
Why excavation is done?
Excavations can be classified, from the point of view of their purpose, as planned, rescue, or accidental.
Most important excavations are the result of a prepared plan—that is to say, their purpose is to locate buried evidence about an archaeological site..
What is borrow excavation?
2 Borrow Excavation: Borrow excavation consists of the excavation and utilization of material from authorized borrow pits, including only material that is suitable for the construction of roadway embankments or of other embankments covered by the Contract.
What is an excavation in construction?
In construction terms, excavation is the process of removing earth to form a cavity in the ground. On small sites or in confined spaces, excavation may be carried out by manual means using tools such as picks, shovels and wheelbarrows.
What are the different types of excavation?
Excavation by MaterialTopsoil Excavation. As the name suggests, this type of excavation involves the removal of the exposed or the topmost area of the earth’s surface. … Rock Excavation. … Muck Excavation. … Earth Excavation. … Cut and Fill Excavation. … Trench Excavation. … Basement Excavation. … Dredging.
What excavation means?
1 : the action or process of excavating. 2 : a cavity formed by cutting, digging, or scooping.
What is classified excavation?
An excavation in which there are separate prices for common excavation and for rock excavation; compare with unclassified excavation.
What is excavation answer?
Excavation is the act or process of digging, especially when something specific is being removed from the ground. Archaeologists use excavation to find artifacts and fossils. There are many types of excavation, but they all involve digging holes in the earth.
What is surplus in Social Studies?
an amount, quantity, etc., greater than needed. agricultural produce or a quantity of food grown by a nation or area in excess of its needs, especially such a quantity of food purchased and stored by a governmental program of guaranteeing farmers a specific price for certain crops.
What are the requirements for excavation activity?
OSHA requires safe access and egress to all excavations, including ladders, steps, ramps, or other safe means of exit for employees working in trench excavations 4 feet (1.22 meters) or deeper. These devices must be located within 25 feet (7.6 meters) of all workers.
What is the difference between digging and excavation?
The difference between Dig and Excavation. When used as nouns, dig means an archeological or paleontological investigation, or the site where such an investigation is taking place, whereas excavation means the act of excavating, or of making hollow, by cutting, scooping, or digging out a part of a solid mass.
What’s another word for excavation?
In this page you can discover 45 synonyms, antonyms, idiomatic expressions, and related words for excavation, like: disinterring, hollow, digging, unearthing, mining, quarrying, exhuming, scooping out, scouring, blasting and removal.
What is surplus excavation?
Excavated material becomes surplus if: Its irrecoverable physical, chemical or biochemical quality prevents it from being used in a development; There is more material than required for the development; or. The requirement for a type of material is too far away from the excavation point to make its use practicable.
What are the steps of excavation?
The entire excavation process includes:setting out corner benchmarks.surveying ground and top levels.excavation to the approved depth.dressing the loose soil.making up to cut off level.the construction of dewatering wells and interconnecting trenches.making boundaries of the building.More items…•
What is a deep excavation?
Shallow excavations are defined as being anything less than 1.5 metres deep, which really is not very deep at all; a relatively short person could comfortably see over the top. Deep excavations, on the other hand, are defined as being any excavation which is more than 4.5 metres in depth – a considerable height indeed.
What is roadway excavation?
Roadway excavation includes excavating and compacting, or disposing of, all materials of whatever character encountered in the work. For terminology used in this section, refer to Section 101 – Definitions and Terms and ASTM D 653 – Standard Terminology Relating to Soil, Rock, and Contained Fluids. 203.02 Materials.
What chronology means?
1 : the science that deals with measuring time by regular divisions and that assigns to events their proper dates. 2 : a chronological table, list, or account a chronology of the author’s works.
What equipment is used for excavation?
Excavating machine, any machine, usually self-powered, that is used in digging or earth-moving operations of some kind; the power shovel, bulldozer, and grader (qq. v.) are examples. Excavator.
How excavation is done?
Excavation is the process of moving earth, rock or other materials with tools, equipment or explosives. It also includes trenching, wall shafts, tunnelling and underground. It is the preliminary activity of the construction project.
What is subgrade preparation?
The foundation of the pavement structure is known as subgrade. Preparation of subgrade consists of all operations before the pavement structure could be placed over it and compacted. The subgrade may be situated on embankment or excavation or at the existing ground surface.
What are ABC types of soil?
OSHA classifies soils into three main groups: Type A, Type B, and Type C. Type A is the most stable and Type C is the least stable soil. To determine the soil type on a construction site, there are several tests that a competent person can use.
What is excavation safety?
Excavation safety Precautions: Trial excavation shall be carried out to ensure protection of underground facility before mechanical excavation. Adapting soil protection method like stepping, sloping, shoring and close sheeting. If excavation reached more than 3 meter, shoring or close sheeting shall be done.