RIS One and RIS Plus

Assessment of Decadus Terminus Position changes & Ice thickness measurement by RIS Plus GPR for Menthosa Glacier

To determine Decadal Terminus Position changes and Ice Thickness of Menthosa Glacier in Lahaul Region, Himalaya Assessment of long-term glacier fluctuation was required in respect of climate changes to obtain vital information regarding future demand of hydro power projects, global sea level & water supply to agriculture & other ecosystems. ...

Mapping of Underground Utilities

As built maps of utilities are made in reference to specific points, which become null and void as the civic layout changes. Most times, such maps do not even exist. The utilities are often confronted with the task of ensuring expansion of buried services, without knowing the locations or routes of their utility assets. The contractor is bestowed the responsibility to execute the work of new installation of cables or pipes or even over ground structures such as fly overs, freeways or buildings without damaging existing buried cable and pipe utility services. The task faced by the contractor (or the user i.e the utility itself) is applicable to all types of utilities and especially buried utilities such as water pipes, sewer pipes, power cables etc. The onus of avoidance of buried utilities is of the contractor. Many a contractor recognize that they are faced with the task of mapping a jungle of underground utilities, that are a result of decades of installation of buried services such as sewer, water, power etc independently and without correlation to each other, as they were and are installed under tender or contract for installation of services for that specific user alone for example a telco, water board, municipality or a power discom. The mapping of such buried services , not detection but comprehensive development of maps of various types of buried utilities, requires both a background in surveying and construction and in depth knowledge of advanced GPRs and other associated underground locating devices such as pipe & cable locators, magnetic locators etc. While most contractors would want a one stop product solution to mapping of buried utility services, there isn't a single shot answer. The question in fact in relation to mapping of buried utilities , once again not detection of utilities, but mapping is ...

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 ...