What is a tie line in surveying?
Tie Line A dimensioned survey line, usually not a property line, used to connect. boundaries. Tie lines are often used along an irregular and roughly dimensioned. water boundary as a means of connecting the accurately described points of a. boundary.
What is check line and tie line surveying?
Tie line – Line joining some fixed points as a Tie station on the main survey line is called as Tie line. Check line – The line joining between the apex of triangle and some fixed point on survey line or on base line is called as check line.
What does tie in mean in construction?
tie-in – a fastener that serves to join or connect; “the walls are held together with metal links placed in the wet mortar during construction”
What is a tie line and what information can it provide?
tie line. noun. a telephone line between two private branch exchanges or private exchanges that may or may not pass through a main exchange.
What is the main survey line?
Which stations taken along the boundary of an area as controlling points are known as ‘main stations’. The lines joining the main stations are called ‘main survey lines’. The main survey lines should cover the whole area to be surveyed. The main stations are denoted by (Reff.
What is the basic principle of chain surveying?
chain triangulation
Chain surveying is the type of surveying in which only linear measurements are made in the field. The main principle of chain surveying or chain triangulation is to provide a framework consist of number of well-conditioned triangles or nearly equilateral triangles. It is used to find the area of the field.
What does a tie in mean?
: to bring into connection with something relevant: such as. a : to make the final connection of tied in the new branch pipeline. b : to coordinate in such a manner as to produce balance and unity the illustrations were tied in with the text. c : to use as a tie-in especially in advertising.
What are Wind ties?
High Wind Ties The High Wind Tie is designed to provide ties for trusses and rafters likely to be subject to high winds. This versatile range may be used for general purposes, strong back attachments and as all-purpose ties where one timber crosses another.
What is the purpose of tie line?
A tie line allows users to avoid toll charges for long-distance calls between two geographically separated offices. If a key system sits behind (i.e., is used in conjunction with) a PBX, one or more tie lines are used to interconnect them. See also line, nailed-up circuit, and tie trunk.
Why is it called a tie line?
A tie line, also known as a tie trunk, is a telecommunication circuit between two telephone exchanges or two extensions of a private telephone system.
Why are tie stations important in chain surveying?
Subsidiary or the tie stations are the points selected on the main survey lines, where it is necessary to locate the interior detail such as fences, hedges, building, etc. A tie line joints two fixed points on the main survey lines. It helps to check the accuracy of surveying and to locate the interior details.
Which is the tie line or check line?
Tie line – Line joining some fixed points as a Tie station on the main survey line is called as Tie line. Check line – The line joining between the apex of triangle and some fixed point on survey line or on base line is called as check line.
When do you use ties and offsets in surveys?
To position using ties, two or more measurements are made from the feature to two or more separate points on the baseline. Offsets and ties can be used for assessment surveys over large areas or for picking up detail in recording surveys.
Which is longest tie line or base line?
Base line – Longest survey line passing through the centre of the are to be surveyed is called as base line. Tie line – Line joining some fixed points as a Tie station on the main survey line is called as Tie line.
