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   Technology and Product Development

    Basic Information

Technology developed: An apparatus for measuring transverse pullout resistance of a reinforcing element in soil (TP19762927691)
Category: Technology Service/Know how
Details of Inventor(s):
Inventor Institution/Organization/Company Department Designation
Dr. B. Umashankar IIT Hyderabad Civil Enngineering Associate Professor
Technical Application Area: Engineering
If 'Other', please specify:
Please give more details of new technical application area:
Organization(s):
Indian Institute of Technology (IIT) Hyderabad
Affiliated Ministry: Ministry of Road Transport and Highways
Type of technology development: Indigenous
Does the technology help in replacing any import items currently
procured from outside India?
No
Does the technology have export potential? Yes
Category of Technology developed: Immediate Deployment
Stage of Development: Lab-Scale
Please describe in detail including the TRL Level:
It is found that for practical conditions in reinforced earth structure, an oblique force or a transverse component of force acts along with the axial component of force on reinforcing elements when considering the possible failures of reinforcing elements. Accordingly, it is critical to evaluate the transverse pullout resistance of a reinforcing element. The present invention provides an apparatus for measuring transverse pullout resistance of a reinforcing element

    Abstract:

Applications: Reinforcing elements are generally placed in soil to improve stability and control deformation. Such reinforcing elements improve the shear resistance of the soil thereby improving its structural capability and thus enabling the use of poorer quality soils as structural fill materials. One such reinforcing element recently in practice is classified as geosynthetic and defined as a planar product manufactured from polymeric material used with soil, rock, earth, or other geotechnical engineering related material as an integral part of man-made project, structure, or system. The interaction behavior between soil and reinforcing element is an important key parameter in the design of reinforced soil structures. The stability of these structures relies to a large extent on the proper transference of forces from the soil to the reinforcing element and vice versa. The main mechanisms of this load transference are friction, passive earth resistance and interlock. Depending on the loading and the position of the reinforcement layers, a pullout mechanism could evolve. Pullout resistance is mainly due to frictional resistance and passive resistance, i.e. interlocking, against ribs of reinforcing element. These resistances depend on the shape, gradation, roughness of soil particles, etc. It is found that in practical conditions an oblique force or a transverse component of force acts along with the axial component of force on reinforcing elements when considering the possible failures of reinforcing elements. Accordingly, it is critical to evaluate the transverse pullout resistance of a reinforcing element. The present invention provides an apparatus for measuring transverse pullout resistance of a reinforcing element.
Advantages: Design of reinforced earth structures can be improved by incorporating the transverse pullout resistance of reinforcement in the design of these structures. The transverse pullout resistance can lead to improve the existing design methodology. The realistic design of reinforced earth structures is possible.

    Technology Inputs:

Imported Equipment/Spare Parts:
Equipment/Spare Parts Year ITC-HS Code
NA
Indigenous Equipment/Spare Parts:
Equipment/Spare Parts Year ITC-HS Code
NA
Imported Raw Materials:
Raw Materials Year ITC-HS Code
NA
Indigenous Raw Materials:
Raw Materials Year ITC-HS Code
NA
Existing R&D Facilities used:
Facilities Year ITC-HS Code
NA

    R&D Investment:

R&D investment (Rs. in Lakhs):                    
Indian Source (Rs.) Foreign Source (Rs.) Year
0 0 NA

   Patents & Publications:

Patents:
Filed Patents (No.) Granted Patents (No.) Year
2912015 0 2015-16
Publications:
Submitted (No.) Published (No.) Year
0 0 NA

    Commercialization Potential:

Who are the Potential Licensees? Strata geosystems India Pvt. Ltd. TechFab India Industries Ltd. Maccaferri Environmental Solutions Pvt. Ltd.
What commercially available products address
the same problem?
Company Product Problem Addressed
Would you like to develop this invention further with
corporate research support?
No
Would you be interested in participating in cluster based
programs for commercialization research or business
planning for your invention?
No
      Submitted by: The Dean R and D Date of Submission: 6-8-2020



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