Underground Utility Mapping Using GPR Technology At Juhu Lane In Mumbai

 

Scope of Work:

GPR survey execution for mapping underground utilities to prevent damage of pre-existing utilities during reconstruction works

Location:

Juhu lane, Mumbai, India.

Client:

Drshan Developers Pvt. Ltd. (Dheeraj Realty)

Equipment:

GSSI SIR-3000 equipped with 200 MHz and 400 MHz antenna

Challenges:

congested lane leading to non- uniform data collection

Summary:

The GPR survey has been carried out at Juhu Lane in Mumbai. The total area is surveyed in two different sites of area around 6000m2. The scope of work includes the mapping of possible underground utilities upto the depth of around 5-6 m using non-destructive Ground Penetrating Radar technology. The purpose of the execution of GPR survey is to plan the diversion of existing utilities for proper execution of proposed residential building development project. Considering the client's requirements and the expected depth of the utilities, the area has been surveyed using 400 MHz and 200 MHz center frequency antennas mounted with SIR 3000 GPR system to cover the depth upto 5-6 m with fair resolution. The purpose of the survey was to map all the underground utilities viz. cables, water lines, gas lines, sewer line etc. upto the depth of 5-6 m using non- destructive technology (GPR). The whole data is collected depending on the site condition and accessibility of area. Numerous parallel profiles have been collected across the width as well as along the length of the road at variable spacing. Overall eight utilities are expected to exist along the Juhu Lane. Several higher reection points are also marked in the drawing. However, no utility is found to exist at a depth greater than 2.3m.

 
GPR data at dahej
GPR layout at dahej