important test method in geotechnical and civil
engineering. The primary goal is to evaluate the shear
strength and stability of soil material that will be
employed as a base layer in dam building.
with a mixture of materials such as cement, bentonite, epoxy, polymer, urethane,
and other chemicals combined with water or other substances. Grouting is used
to improve the physical and mechanical qualities of the building or soil that is
being repaired or improved.
We provide exceptional services in Large Scale Direct Shear and Grouting as geotechnical specialists. We have tried-and-true equipment and a staff of well-trained employees, so we can guarantee the best quality and outcomes on every project we work on.
1. Large Scale Direct Shear
The Large Scale Direct Shear Test (LSDS) is a geotechnical laboratory test method used to determine the shear strength and mechanical properties of soils and rocks. This method includes delivering a shear stress to a bigger soil or rock sample than the traditional direct shear test.
A normal load is delivered to the soil or rock sample using a vertical load during the LSDS test. The shear force is then delivered horizontally by sliding one layer of the box chamber (Box Chamber) against another. Shear and shear forces are measured when a shear force is applied. This information is utilized to compute critical characteristics including shear strength, elastic shear strength, plastic shear strength, and soil deformation.
This test is performed on coarse-grained materials such as Random material, Rockfill, and Dam Filters. This test was performed in a 60x60x48 cm box chamber to assess soil shear strength characteristics such as cohesiveness and soil shear angle.
Large Scale Direct Shear Testing under Two Conditions:
- To obtain the assumed value of Shear Strength after construction before flooding, use natural / unsaturated / water unsaturated circumstances.
- Circumstances that are saturated with water to obtain the shear strength value during flooding to aid in the determination of dam stability.
The LSDS test gives more realistic and representative information about soil or rock shear strength and shear behavior under significant loads. This method is important for understanding how soil or rock responds to lateral loads, as well as for slope stability studies and the design of retaining walls susceptible to significant shear stresses.
2. Foundation Cementation Test & Implementation (Grouting)
Foundation cementation, also known as grouting, is a technique that involves injecting mixed materials such as cement, water, and chemical additives into gaps or crevices inside the foundation or the surrounding soil. Grouting's primary goal is to strengthen, fill, and increase the stability of the foundation or surrounding soil.
We frequently do Cementation Tests on the Dam building plan, which is performed prior to and concurrently with the implementation of DAM disposal, namely Foundation Cementation work.
Grouting can be used to increase the bearing capacity of foundations, reduce soil movement, fill gaps or voids, reduce water penetration, or improve slope stability. To guarantee that the process is carried out appropriately and successfully in accordance with specific conditions and needs, it is critical to involve competent geotechnical specialists or engineers in the planning, design, and implementation of grouting.
