CN2349264Y

CN2349264Y - Novel excavation grid

Info

Publication number: CN2349264Y
Application number: CN 98229728
Authority: CN
Inventors: 欧泯六
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-10-21
Filing date: 1998-10-21
Publication date: 1999-11-17
Anticipated expiration: 2008-10-21

Abstract

The utility model relates to a novel excavation grid which uses a high intensity trailed model plastic tape as a stress unit. One side of the plastic tape is pressed to form coarse mark, and the other side of the plastic tape is pressed to form strip-shaped weld lines. The plastic tape is ranged as lattice shape longitudinally and horizontally, and the side having weld lines is opposite. The intersection point is a welding point. The strip-shaped weld lines on the plastic tape are vertical stripes or horizontal stripes. The utility model has the advantages of easy molding, simple needed equipment, vertical and horizontal bearing high tension reaching 150 kilonewton per one square meter, firm node, big friction force, good anticorrosion property, low production cost, and wide application scope.

Description

Novel geo-grid

The utility model belongs to the building unit technical field, is specifically related to a kind of novel geo-grid.

In the construction of engineerings such as roadbed, dykes and dams, bank protection lacing wire barricade, soft foundation, when earth stress is big, can produces and creep, displacement, ftracture, stride accident such as collapse.For guaranteeing workmanship, existing often the employing is provided with reinforcement material in the soil body, with the rubbing action of soil body generation, with its stressed being delivered on the reinforcement material, thus to the soil body reinforce, reinforcement, reach the stability of the soil body.The geo-grid of domestic production at present has two kinds of forms: a kind of is with tabular plastics, with it from middle opening, vertically and horizontally stretching then, cooling, grid.The grid of this structure pulling force that can bear of both direction in length and breadth has difference, and need one-shot forming, equipment need possess very high pulling force, so the device structure complexity, and investment is big, and the fertile product specification of a set of equipment institute is limited, this geo-grid breadth wide that actual production now goes out is 1.2 meters, and the maximum pull that can bear is 50,000 Ns/square metre only, and it is required to be difficult to satisfy engineering, and cost height, price are 15 yuan/m ²More than.Another kind of structure be woven into glass fiber etc. earlier netted, composite plastic layer protection again, the grid stretching resistance of this structure is limited, and easily crisp; in construction, when banketing, when sand, stone roll are pressed, being prone to and breaking; strengthening core exposes in making, and causes disrumpent feelingsly, influences its reinforcing and reinforcement to the soil body.The applicant had once invented a kind of " high-strength geotechnological reinforcement grid ", owing to the composite plastic bar that with the wire is core is a stress unit, still exist and the hypodynamic problem of soil body rubbing action in actual applications on the one hand, and the cost height, engineering department is difficult for accepting.Owing to adopt hot pressing to be connected into trellis, crimping face structure is not dealt with on the other hand, node fracture or unstable problem often occur.

The purpose of this utility model is at the prior art above shortcomings, provide a kind of moulding easy, equipment needed thereby is simple, all can bear strong pulling force (can to 150,000 Ns/square metre) in length and breadth, node is firm, and frictional force is big, and antiseptic property is good, cost of production is low, widely applicable novel geo-grid.

Technical solution of the present utility model is as follows:

The new geo-grid of this practicality is a stress unit with high strength drawing-off shape strip, simultaneously is suppressed with coarse lines at plastic tape, and another side is suppressed with the strip sealing wire, and the longitudinal and transverse permutation and combination of plastic tape becomes trellis, and has the face of sealing wire relative, and joining is a pad.Strip sealing wire on the plastic tape is vertical bar or horizontal stripe.

The characteristics of this novel geo-grid are: 1. changed one-time formed structure in the past, adopting the high strength plastics band is stress unit, permutation and combination is welded into trellis in length and breadth, like this can be according to requirement of engineering, the grid of production different stretch intensity and specification size, the tensile strength of grid on both direction in length and breadth is even, and has strengthened the interlocking ability of grid to soil body all directions.And antiseptic property is good, and equipment is simple, and the product cost is low.2. particular design has been done on the two sides of high strength plastics band, promptly the one side as solder side is suppressed with the strip sealing wire, adopts special solder technology, and another side is then suppressed coarse lines.Can make firm welding between two plastic tapes so on the one hand, can increase the frictional force of grid on the other hand, more help reinforcing and the reinforcement of grid the soil body to the soil body.Therefore the more present domestic geo-grid product of this novel geo-grid is compared, and stiffness is good, and stretching resistance intensity substantially exceeds at present domestic strong, breadth wide (more than 2 meters), easy construction, frictional force is big, but and the product specification seriation, widely applicable, corresponding cost is low, has very big market efficiency.

The utility model is described in further detail below in conjunction with drawings and Examples:

Fig. 1 is cell structure figure;

Fig. 2 is the plastic tape sectional view.

Embodiment:

Referring to Fig. 1, the stress unit of the utility model geo-grid adopts high strength drawing-off shape strip 1, as poly-third ethene or polyethylene etc.Plastic tape 1 need not weld one side and be suppressed with coarse lines 2, needs the one side compacting strip sealing wire 3 of welding, and sealing wire 3 can be vertical bar, also can be horizontal stripe.Plastic tape is longitudinal and transverse to be staggered to lattice 4, and has the face of sealing wire relative, and its joining is a pad.What of the width of plastic tape and arrangement can to become different size, reach widely applicable, reasonable price according to tensile strength (KN) design of engineering design needs.

Claims

1. novel geo-grid, with high strength drawing-off shape strip is stress unit, it is characterized in that plastic tape (1) one side is suppressed with coarse lines (2), another side is suppressed with strip sealing wire (3), the longitudinal and transverse lattice (4) that are arranged in of plastic tape (1), and have the face of sealing wire (3) relative, its joining is a pad.

2. novel geo-grid according to claim 1 is characterized in that the strip sealing wire (3) on the plastic tape is vertical bar or horizontal stripe.