What Is Scan Line Survey? Scan line survey is used to determine the quality of rock mass and underground structures. Scan line survey also called as discontinuity survey. In this type of survey, the outcropped rock surface is scanned, and data is collected for rock mass analysis, contributing to the preliminary design of structures supported … Read more
Pegs In Surveying: Introduction In the field of surveying, surveyors utilize pegs, which are either made of wood or metal stakes, to demarcate specific points on the ground. These points serve to represent various elements in a survey, including property boundaries, corners, reference points, or control points. Surveyors strategically place the pegs in the ground … Read more
What Are Arrows In Surveying? Arrows are widely used as marking pins in chain surveying, serving a critical role in measuring linear distances and indicating the end of a chain length. They are invaluable tools employed by surveyors to establish a series of points on a surface and accurately measure distances. Arrows can be constructed … Read more
What Is Ceylon Ghat Tracer? The Ceylon Ghat Tracer is a special tool that helps us measure slopes with great accuracy. It is made up of a long tube that has a hole at one end and some lines at the other end. The tube is held up by a frame with a hole on … Read more
Ranging In Surveying Ranging in surveying involves measuring the distance between two points or objects in the field. Ranging is necessary when a survey line is longer than a chain length, as it is important to align intermediate points on the chain line so that measurements are accurately taken along the line. There are two … Read more
There are three types of errors in chain surveying. These are personal errors, compensating errors and accumulating errors. We will discuss these errors in chain surveying and how to minimize these errors. Let us learn about these 3 types of errors in chain survey. 1. Personal Errors In Chain Surveying Personal errors are caused by … Read more
In this article I will discuss difference between prismatic compass and surveyor compass. When it comes to surveying, two commonly used instruments are the prismatic compass and the surveyor’s compass. Despite their similarities in usage, there are significant differences in their construction and application. A prismatic compass is a simple compass whose sighting system consists … Read more
What Is Surveyors Compass? Surveyors compass is used to measure horizontal angles. It is consist of a graduation disc fixed to the box, with a magnetic needle that is free to rotate above it. Unlike other compasses, it does not have a prism at the viewing end, but instead has a narrow slit. To take … Read more
Errors in plane table surveying can be caused by the equipment or the person using it. In this article I will discuss the instrumental and personal errors in plane table surveying. 1. Instrumental Errors Let’s learn these instrumental errors in detail. (a) The surface of plane table not perfectly plane: A plane table is an … Read more
There are four methods of levelling used in the field of construction. Levelling methods are used to calculate the height difference at different ground levels. The following methods are used to determine the difference in elevation of various points: Let’s learn about these methods of leveling. 1. Barometric Levelling This method depends on the principle … Read more