Equipment Used In Chain Surveying

Arrows are is used to counting the number of chains in chaining.

Equipment used in chain surveying.

Every aspect of the life requires some measuring units. The framework must mostly consist of triangles. The principle of chain surveying is to provide a skeleton framework of straight lines which can be plotted to scale if the lengths of these lines are pre determined either with a chain or a surveying tape. It is the simplest kind of surveying it is adopted when level of accuracy required is not high.

If the measuring distance is too long then it makes it difficult to measure from one point to another in. This is a metallic peg or nail like structure that is used to indicate the measured distance taken by a chain. Surveying tripods surveying bipods fiberglass grade rods aluminum grade rods builder s grade rods story poles laser levels auto levels transit levels hand levels abney levels surveyor s brush axes land surveying markers land surveying rods marking paint surveying prisms prism poles gnss equipment. Chains are the measuring instrument used in surveying formed by the 100 links of 4mm galvanized mild steel wire.

The necessary requirements for field work are chain tape ranging rod arrows and sometime cross staff. These links are joined by 3 circular or oval wire rings. Equipment used for chain surveying and its uses 1. Arrows also known as making pins or chaining pins are made of tempered steel wire 4mm in diameter and generally.

Metric chain is two types 20m chain and 30 m chain 20 m chain have 100 links and 30 m chain have 150. Beyond those three essential categories you will find compasses clinometers survey crosses drawing instruments tripods chains and more. This rod is. These rings provide the flexibility to the chains.

It is a system of surveying in which sides of various triangles are measured directly in the field and no angular measurements are taken. List of instruments used for chain surveying arrows. Arrows are made steel wires of diameter 4mm. These are the theodolite total station measuring tape and level and rod.