Chaining - Introduction to Surveying - Surveying 1

TL;DR

This video discusses the types of change and methods of training used in surveying, including chaining and the use of different instruments.

Transcript

hello friends today's topic of discussion is training what are the types of change eight what are the methods of training so now we'll start with the next topic which is chaining chaining is basically a linear measurement and in linear measurement there is a particular basic function that it is always horizontal not a sloping distance the horizonta... Read More

Key Insights

• 🚥 Chaining is a linear measurement method that provides accurate horizontal distances but not sloping distances.
• ⛓️ Different instruments like chain tape, arrows, ranging rods, plum bob, and level are used in chaining.
• 👚 Chains can be metric, engineer, revenue, or steel bond, while tapes can be made of cloth, metallic, steel, or invar materials.
• 🛝 Chaining can be done using either the direct method for horizontal measurement or the indirect method for sloping grounds.

Questions & Answers

Q: What are the drawbacks of chaining in surveying?

The main drawback of chaining is that it is only accurate for measuring horizontal distances and not sloping distances. There is no way to provide a check other than re-measuring.

Q: What is the difference between a chain and a tape?

Both chains and tapes are used for linear measurement, but the chain is not in common use nowadays. Chains were established in the 1600s, while tapes were introduced in the 2000s and are commonly used for accurate linear measurements.

Q: What are the different instruments used in chaining?

The instruments used in chaining include chain tape, arrows, ranging rods, plum bob, and level. Arrows are used for establishing intermediate points, ranging rods are used for clear vision on survey lines, and plum bobs are used to check verticality.

Q: What are the different types of chains and tapes?

The different types of chains include metric chain, engineers chain, revenue chain, and steel bond chain. Tapes can be made of cloth, metallic, steel, or invar materials. In practice, invar tapes and linen tapes are commonly used.

Summary & Key Takeaways

• Chaining is a linear measurement method that uses a chain or tape to calculate horizontal distances accurately, but is not reliable for sloping distances.

• Different instruments used in chaining include chain tape, arrows, ranging rods, plum bob, and level.

• There are different types of chains, such as metric chain, engineers chain, revenue chain, and steel bond chain. Tapes can be made of cloth, metallic, steel, or invar materials.