Shijay Projects India Private Limited

Seismic refraction tomography (SRT) is a powerful technique used to construct detailed images of the subsurface distribution of seismic wave velocity and its anomalies. By analyzing the refracted waves generated by variations in wave velocity, SRT can provide valuable insights into the characteristics of the subsurface. The velocity of seismic waves is influenced by the density and elastic properties of the materials they pass through, which are in turn determined by the lithological properties of the substrate being investigated. The propagation of waves in the subsurface follows Snell's law, resulting in phenomena such as refraction, reflection, and diffraction at each interface. In refraction surveys, only refracted waves are considered, allowing SRT to generate a velocity distribution picture that highlights continuous changes in velocity rather than a layered model typically seen in refraction surveys. SRT is a valuable tool for understanding the subsurface and can provide crucial information for various applications in geophysics and geology.

Multi-channel Analysis of Surface Waves (MASW) is an exceptionally valuable technique for examining shallow geological formations and, specifically, assessing the relative shear strength of subsurface materials. This method proves particularly useful by integrating density measurements of the nearby bedrock and overburden sediments, enabling the derivation of their shear modulus, commonly known as dynamic ground stiffness. The incorporation of such data facilitates a comprehensive understanding of the geological structure and provides crucial insights into the mechanical properties of the subsurface materials. Consequently, MASW serves as an indispensable tool in various fields, including geotechnical engineering, environmental studies, and seismic hazard assessments.

Features: 

1. Precise determination of soil thickness.
2. Precise determination of seismic velocities.
3. Precise determination of water table in overburden.
4. Localization and identification of geological units.
5. Detailed analysis of soil.
6. Great accessibility to rough terrain and remote regions.

1. Bedrock profile, rock quality and depth.
2. Thickness of overburden
3. Fractures and weak zones
4. Topography of ground water
5. Rippability assessment in mines
6. Slope stability studies
7. Pipeline route studies

The Lakkolit-24-M4 is an advanced digital multichannel engineering seismograph specifically developed for conducting engineering geological and micro-zonation surveys. This state-of-the-art device utilizes refracted wave, seismic refraction, and vertical seismic profiling methods to gather accurate data. With a remarkable data rate of up to 100Mb/s, the Lakkolit-24-M4 ensures efficient and high-speed data acquisition. Equipped with a built-in electronic switchboard, it simplifies the process of data recording and primarily focuses on data processing from 24 seismic channels. This cutting-edge seismograph boasts improved reliability due to its increased integration, making it a reliable tool for professionals in the field.