CN2384981Y

CN2384981Y - Tie bar grate net for civil engineering

Info

Publication number: CN2384981Y
Application number: CN 99232391
Authority: CN
Inventors: 郑邦君
Original assignee: 郑邦君
Current assignee: Chongqing Subgrade Earthwork Building Material Co., Ltd.
Priority date: 1999-08-17
Filing date: 1999-08-17
Publication date: 2000-06-28
Anticipated expiration: 2009-08-17

Abstract

The utility model discloses a lacing wire grid net for civil engineering. The grid net adopts prefabricated strip-shaped or fascicular ribs of homogeneity or reinforced ribs to crosswise arranged into a meshed shape, and then, resin, etc. are adopted to fuse and connect each cross point into integration with the cross points made into convex nodes, so that the defects of complicated technology, large investment, high producing and using costs, etc. existing in longitudinal and transverse stretch formability under the heating condition after holes are made in sheet material in the background art. The utility model has the characteristics of simple and reliable manufacturing technique and device, favorable consistency of product quality, uniform longitudinal and transverse tensile strength, low cost, strong adhesive power of layers waiting for reinforcement, etc.

Description

A kind of civil engineering lacing wire grid

The utility model belongs to a kind of civil engineering engineering reinforcing rib, particularly a kind of netted lacing wire grid that bears longitudinal and transverse pulling force.Be particularly useful for soil layer and reinforce, prevent the landslide, the compressive strength of the shotcrete with steel bar nets of railway slope, the processing on soft basis and raising flexible pavement, express highway pavement etc.

At present, the lacing wire material that generally is used for earthwork engineering mainly contains two classes, and the one, bar strip, the 2nd, lacing wire grid.The former can only bear the longitudinal pulling force power of tape body length direction (promptly along) for band shape, and the effect that can not bear lateral pull; So adopt bar strip often to have defectives such as the overall structure performance of engineering is not good enough as the reinforcing rib of earthwork engineering.And the lacing wire grid that adopts usually, as polypropylene (PP) grid, generally adopt in the production after the sheet material punching, machine-direction oriented stretching location increases its tensile strength under the situation of heating, and laterally there is no the orientation making, so its transverse tensile strength is very weak, though thereby its fabric width than tens of times of lacing wire bandwidth, laterally still can not reach the tensile strength of engine request; In addition, the investment of production equipment of this type of lacing wire grid is bigger, and technology is complicated, cost of production is also higher; In order to satisfy in the earthwork engineering requirement to the horizontal stretching resistance of lacing wire grid, unit in charge of construction has introduced a kind of grid that adopts double-shaft two-way to stretch and locate at present, that is adopt after punching on the sheet material, under heated state, it is carried out the stretching location of vertical and horizontal, to satisfy the requirement of engineering to grid vertical, horizontal tensile strength.The vertical and horizontal tensile strength of this lacing wire grid all can satisfy the engineering construction requirement, but this kind grid production equipment and technology are more complicated, and equipment investment and product cost are quite high, domesticly still can't produce at present, thereby range of application is very limited.

The purpose of this utility model is that a kind of longitudinal and transverse tensile strength equilibrium of design, production technology are easy, meets the lacing wire grid of earthwork engineering construction requirement.To reach the simplification production technology, improve its transverse tensile strength, reduce equipment investment and production cost of products and use cost, enlarge purposes such as the extent of spreading amd application.

Solution of the present utility model is: after at first macromolecule reinforcing material such as resin, plastics etc. being made the homogeneity with certain (or requirement) tensile strength or being added the strip or pencil rib of strength bar, again by the length and width of every lattice with this rib through, latitude cross arrangement or be woven into the graticule mesh shape, adopt resin or plastics (preferably with the rib homogeneity) that each longitude and latitude crosspoint fusion is connected into one and forms the convex node at last, thereby make the lacing wire grid of the utility model indication.Therefore, the utility model comprises the grid body of being made up of warp, latitude rib; Key be this grid all for by single homogeneity add the strip of strength bar or the pencil rib by forming through, latitude cross arrangement; Each crosspoint is integral by molten resin or plastically welding and forms the convex node at each place, crosspoint.

The utility model is owing to adopt prefabricated homogeneity or add the single strip or the pencil rib of strength bar, be compiled into latticed through, latitude cross arrangement of being of certain specification on request, by resin each crosspoint fusion parcel is coupled to one again, thereby overcome background technology with after the sheet material punching, longitudinal and transverse orientation stretching equipment needed thereby, complex process under the condition of heating, investment is big, defectives such as cost of production and use cost height; In addition, node is cast convex, make to embed in its construction and treat in the back-up coat, improve its adhesive power.Produce the utility model product, the complete equipment investment is less than one of percentage of background technology, and product cost only its 50%.Therefore, the utlity model has production technology and equipment simply, reliably, product specification is easy to adjust, can produce the grid and the product quality high conformity of all size, vertical, horizontal tensile strength is even, cost is low, and applied range is with the characteristics such as strong adhesion for the treatment of back-up coat.

Accompanying drawing and description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is A-A view (sectional view).

Among the figure: 1. lengthways of rod, 2. laterally rib, 3. convex node.

Embodiment 1.

Present embodiment is an example with grid lacing wire grid, every lattice length of side (center to center distance) 6.5 * 6.5mm, and longitudinal and transverse rib 1, the 2 wide 5mm that are, thick 1.0mm, material is the homogeneity resin.At first resin is made wide 5mm during making, the band shape of thick 1mm, the layout that then it intersected becomes the grid of every lattice 6.5 * 6.5mm, with the homogeneity resin the hot injection moulding of each grid intersection wrapped again to be integral, node 3 thick 4mm, four hem widths are 10mm.

Embodiment 2.

Present embodiment adopts and to be added with steel wire and to make the strip of reinforcing rib and be laminated with the longitudinal and transverse rib 1,2 that rib is made grid, the wide 6mm of rib, thick 1.5mm, the thick 5mm of each node; As the steel wire diameter Φ 0.4mm of reinforcing rib, establish 3 steel wires in the every rib.All the other are all same with embodiment 1.

Claims

1. a civil engineering lacing wire grid comprises the grid body of being made up of warp, latitude rib; It is characterized in that this grid all for by single homogeneity add the strip of strength bar or the pencil rib by forming through, latitude cross arrangement; Each crosspoint is fused into it one and forms the convex node at this place, crosspoint by molten resin or plastics.