Chain surveying is considered to be the simplest method of surveying in which measurements are taken in the field and other supplementary works like.
🚀2 Main Types of Filed-Book | Chain Surveying
1. Single Line Field-Book
2. Double line Field-Book.
The field measurements, sketches, and appropriate notes are taped for a future recommendation in a notebook, referred to as field-book. The field-book in basic use has to do with 20cm * 12cm and opens length sensible.
💡Type # 1. Single Line Field-Book (Fig. 3.18, b): ✨
Every page of this type of the field-book has a single red line ruled down the middle. This line represents the chain line and it is gone into the overall length of the line and the modifications at which the offsets are taken. The area on either side of the line is available for sketching the different features along the chain line and for composing the balanced out ranges.
The offsets are kept in mind opposite to the modifications from which they are required to the right or left of the middle line according as they are on the right or left of the chain line.
💡Type # 2. Double Line Field-Book: ✨
It resembles the single line field-book however rather of a single red line in the center, 2 blue or red lines about 1.5 cm apart are ruled down in the middle of each page. The area in between these lines represents the chain line and is booked for getting in modifications, which are therefore kept completely different from the other measurements.
Single line field-book is hassle-free for big scale and much comprehensive dimension-work while for regular work, the double line field-book is frequently utilized. The pages of the field-book are maker numbered.