Reinforcing net structure for geotechnical applications, use of the reinforcing net structure, and a method for production of the reinforcing net structure

Abstract

A product for reinforcing terrain includes a net structure made of a plastic material having a plurality of bars and a plurality of elongate elements that are transversal with respect to the bars. The elongate elements are arranged between adjacent pairs of bars and exhibit a substantially wire-like structure, with a transversal section having a smaller area than a transversal section of the bars. Also described are a use of the product and a method for manufacture thereof.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims the benefit of priority of Italian Patent Application No. MI2010A001920, filed Oct. 20, 2010, pursuant to 35 U.S.C. 119(a)-(d), the disclosure of which is incorporated herein by reference.TECHNICAL FIELD[0002]The following is a description of a reinforcing net structure for geotechnical applications, a use of the reinforcing net structure and a method for production of the said structure.BACKGROUND OF THE INVENTION[0003]In the geotechnical sector there is often a need to reinforce terrain or support steep slopes, with the aim of preventing landsliding and / or to guarantee greater stability of the terrain, even in the presence of natural events such as earthquakes, floods and others besides.[0004]A first known technical solution comprises the use of reinforced nets made using woven metal wires, or wires coupled to one another such as to realize a net structure. These net structures are inserted or applied on the terra...

AI Technical Summary

Benefits of technology

[0011]In this situation, an object of the present invention is to provide a net structure for reinforcement of earth having high mechanical resistance and improved flexibility.

[0013]A further aim of the invention is to obtain a net structure for geotechnical applications that can be easily applied and is adaptable to any arrangement whatsoever internally of the terrain or on the surface thereof.

[0015]A further aim of the invention is to provide a net structure that is intrinsically capable of ensuring a high resistance even in a case of breakage of one or more elements.

[0019]In a 2nd aspect according to the first aspect, the elongate elements are able to flex freely about at least a first and at least a second direction which are perpendicular to one another and transversal with respect to a longitudinal development direction of each elongate element. In other words, the wire elements are not able to provide substantial flexional and compressive rigidity, but being wire-like provide a capacity of resistance to traction.

Problems solved by technology

Although these technical solutions have been widely used in the past, they exhibit a significant number of drawbacks related to production costs, difficulties connected with the process of weaving or coupling the metal wires and the complexity of realizing the net structure, as well as drawbacks connected to the structural capacity of the finished product and its ability to resist corrosive agents.

Although the product described has been a considerably success, given its mechanical properties, and the ability to be chemically inert combined with the possibility of a low-cost production, uni-directionally stretched reinforcing net structures at present on the market exhibit an accentuated mechanical resistance of the product in the stretched direction, but a limited structural flexibility as well as a relatively significant weight.

Further, the weight of the product grows significantly in line with the requested mechanical resistance.

The poor flexibility and deformability of the longitudinal elements beyond their lie plane, as well as the rigidity of the non-stretched transversal bars, have an impact on the versatility of use of the product.

In other words, the wire elements are not able to provide substantial flexional and compressive rigidity, but being wire-like provide a capacity of resistance to traction.

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