RIS Hi -Pave

When is a ground penetrating radar beneficial in locating of underground pipes & cable utilities ?

The task of Locating underground utilities can be bifurcated into two deliverables: 1. Detection of underground utilities 2. Mapping of underground utilities If we take a this can be further subdivided into: a. Detection of metallic cables & pipes, whether energized current carrying utilities or non energized utilities such as signaling cables, metallic pipes etc. b. Detection of DI pipes, metallic manholes etc. c. Non-metallic HDPE telecom pipes, fiberglass manholes, etc. Underground cable & pipe utility locating requires the use a combination of various equipments and techniques which need to be chosen based on desired deliverables and then correctly employed to obtain the desired results. If the answer is a , an operator with basic training on usage of the ever dependable CSCOPE DXL2 Cable avoidance tool or CAT33XD Cable avoidance tool, can do the job blindfolded. If the answer is b, an additional metal detector &/or magnetic locator is required. If the answer is c. The use of a ground penetrating radar or GPR is necessary. In layman term, Fundamentally, both a and B operate on the principle of detecting electromagnetic energy (based on specified frequencies) . In case of CSCOPE Pipe & Cable locator standard features include capability to detect both 50Hz passive power signal frequency and the capability to transmit an electromagnetic energy (at a specified frequency) and in turn detection of a small amount of frequency. The time delay allows detection of range of the target. Whereas. In case of a ground penetrating radar, The GPR transmits a very short pulse of e.m. energy into the material by a transmitting antenna at a wide range of higher frequencies in comparison to a pipe & cable locator . Energy reflected by discontinuities is captured by a receiving antenna. Depth range & resolution are related to the radar frequency, transmitted power, host material e.m. properties and ...