CN2565874Y

CN2565874Y - Reinforced grid

Info

Publication number: CN2565874Y
Application number: CN 02272239
Authority: CN
Inventors: 李兰英
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-08-05
Filing date: 2002-08-05
Publication date: 2003-08-13
Anticipated expiration: 2012-08-05

Abstract

The utility model discloses a reinforced grid used for civil engineering, which is characterized in that discrete cement concrete blocks are vertically and horizontally connected into a grid shape by threads. The utility model not only overcomes the defects that a plane grid is interlocked and the transfer stress is only in the limited space of a plane range, but also overcomes the defects that the adhesion interlocking action of reinforced materials caused by earthwork separation can not be exerted. Besides, the reinforcement grid can make the capacity of interlocking granules or the transfer stress improved. The utility model is used for various reinforcement occasions of civil engineering in soft foundation cushion layers, bridgehead earth filling reinforcement, any structural layer on a highway surface, structural layers, reinforced earth blocking walls, etc.

Description

Ribbed lattice

One) technical field

The utility model relates to civil engineering reinforcement field, especially latticed reinforcing rib.

Two) background technology

At present, in civil engineering, some latticed reinforcing ribs of widespread usage, latticed reinforcing rib has two classes, and a class is the plane ribbed lattice, as shown in Figure 1, as unidirectional geo-grid, two-way geo-grid, glass fiber grid etc., these grids have bigger eyelet and high strength and stiffness, and soil, stone grain are embedded, and produce snap-in force with soil or stone grain, thereby can spread the stress in soil or the stone grain, the displacement of restriction soil or stone grain is transmitted stress, the effect of reinforcing material tensile strength and isolation.For example as: be laid on the side slope firm side slope and can afforest, be laid on and form operation platform on the soft base wad layer and isolate tensile layer, being laid on end of the bridge bankets and strengthens the stretching resistance of banketing and prevent differential settlement, be laid on and can strengthen stretching resistance in arbitrary deck of highway pavement and prevent reflection crack, and aspect such as reinforced earth bulkhead.

Though above plane grid can play above effect, but have the following shortcoming: 1, sphere of action is very limited: because above only for the plane grid, only planar produce snap-in force with soil or stone grain, to such an extent as to make the stress in diffusion soil or the stone grain, the equal major limitation of effect such as the displacement of restriction soil or stone grain are in the confined space up and down on plane, and active force is little; Even when granular material did not embed plane grid, planar the snap-in force of Chan Shenging was more limited; 2, the loaded down with trivial details complexity of manufacturing process: geo-grid is punching on plastic sheet ability normally, and stretch orientation forms under heated condition again; Glass fiber grid often must be fiber bundle through weaving into net, and these complicated manufacturing process have all improved the cost of plane grid greatly; 3, node is insecure: glass fiber grid particularly, at fiber bundle node in length and breadth, under complex loading conditions such as Construction of Civil Engineering and distortion, node easily comes off, thereby reinforced action is weakened greatly by the silk thread woollen yarn knitting.

Another kind of is the solid type ribbed lattice, as geotechnical grid, as shown in Figure 2.The shortcoming of geotechnical grid is that the material that will strengthen has been isolated in each little lattice is indoor, does not connect mutually each other, and the adhesion interlock action of the material that each lattice chamber and another lattice are indoor obtains destroying, and geotechnical grid must expend lot of materials, costs an arm and a leg.

Three) utility model content

The purpose of this utility model is to provide a kind of sphere of action big, and manufacturing process is simple, and cost is low, and node is in conjunction with firm ribbed lattice.

The utility model purpose is achieved like this: be used for the ribbed lattice of civil engineering, it is characterized in that: connect at interval discrete cement concrete block in length and breadth by silk thread and become latticed.

As a kind of form of the present utility model, described cement concrete block can be on fibrous concrete or the polymer coagulation or the first-class various cement concrete blocks of high-strength coagulation.

As another kind of form of the present utility model, described silk thread can be cross-like in length and breadth, and this infall that intersects silk thread in length and breadth is positioned at the discrete cement concrete block in described interval.

As another kind of form of the present utility model, described silk thread can be plane grid.

As another kind of form of the present utility model, described plane grid can be the glass fiber strand grid.

As another kind of form of the present utility model, described plane grid can be steel wire grid.

As another kind of form of the present utility model, described cement concrete block can disperse at interval and be arranged on the node of this grid.

As another kind of form of the present utility model, described cement concrete block can disperse at interval and be arranged in the checkerwork cell of this grid.

As another kind of form of the present utility model, can be provided with wire loop on the described coagulating cement soil block, silk thread passes wire loop and connects in length and breadth that block becomes latticed on the at interval discrete coagulating cement.

As another kind of form of the present utility model, described silk thread is latticed, and this grid can cover the discrete cement concrete block in described interval, and is equipped with knot between at interval discrete cement concrete block.

As another kind of form of the present utility model, described silk thread is latticed, described cement concrete block at interval Discrete Distribution on thin film, described latticed silk thread covers on the at interval discrete cement concrete block, and the knot that has grid to combine with film between the cement concrete block; Described film both can be fexible film, also can be stiffness films.

Owing to adopt above-mentioned ribbed lattice; when ribbed lattice is arranged in granular material or the non-particulate material; when being subjected to tensile stress or shear stress; power on the grid can be delivered on the cement concrete block; owing to be full of granular material or the non-particulate material that is reinforced between the at interval discrete cement concrete block; what thereby the power on the cement concrete block again can be three-dimensional is delivered on the material that is reinforced; so not only overcome the plane grid interlocking and transmitted stress only in the confined space and the little defective of power transmission effect of planar range; and overcome the defective that the adhesion interlock action that is reinforced material that geotechnical grid causes can not get bringing into play; cement concrete block in the ribbed lattice of the present utility model can with produced better adhesion stress and interlock action by reinforcement material; thereby the ability of this ribbed lattice interlocking particle or transmission stress is strengthened greatly; sphere of action is increased in the space up and down of ribbed lattice greatly; and ribbed lattice manufacturing process of the present utility model is simple; cheap; if cement concrete block on the ribbed lattice is when being positioned on the node of plane grid; not only can strengthen and transmit stress and interlocking ability, and make silk thread more firm in the combination at node place.

Below in conjunction with the drawings and specific embodiments the utility model ribbed lattice is described further.

Four) description of drawings

Fig. 1 is a prior art plane ribbed lattice geo-grid schematic diagram;

Fig. 2 is a prior art solid type ribbed lattice geotechnical grid schematic diagram;

Fig. 3 is the perspective view of the utility model embodiment 1;

Fig. 4 is provided with the preceding silk thread schematic diagram of cement concrete block for the utility model embodiment 1;

Fig. 5 is the perspective view of the utility model embodiment 2;

Fig. 6 is the perspective view of the utility model embodiment 3;

Fig. 7 is the stereochemical structure decomposing schematic representation of the utility model embodiment 4;

Fig. 8 is the cross sectional view of the utility model embodiment 4;

Fig. 9 is the stereochemical structure decomposing schematic representation of the utility model embodiment 5;

Figure 10 is the cross sectional view of the utility model embodiment 5;

Figure 11 is the cross sectional view of the utility model embodiment 6;

Figure 12 is the stiffness films schematic perspective view of the utility model embodiment 6.

Five) specific embodiment

As Fig. 3, shown in Figure 4, present embodiment 1 is made of silk thread 2 and coagulating cement soil block 1, silk thread 2 is for becoming latticed glass fiber strand in length and breadth, this glass fiber strand forms through dipping PVC, do not connect at node 3 places in length and breadth at latticed glass fiber strand, only for hanging together, at each node 3 place cement concrete block 1 is set, promptly constitute the ribbed lattice of present embodiment 1, the method to set up of cement concrete block 1 can be to set up the template chamber that identical shaped cavity is arranged with cement concrete block 1 at each node 3 place of silk thread 2 in length and breadth, node 3 can be in the centre of template chamber, casting cement concrete in the cavity of template chamber like this, promptly node 3 is embedded in the cement concrete block 1, the demoulding promptly becomes the ribbed lattice of present embodiment 1 again after the age of concrete.In the present embodiment, because the node of glass fiber strand is cast in the cement concrete block, so not only make node in conjunction with firm, difficult drop-off, and, the transmission stress of this ribbed lattice in the actual use and the ability of interlocking particle are strengthened greatly because cement concrete block 1 has enough hardness and three-dimensional height.

Certainly, in the present embodiment 1, silk thread 2 also can be that node 3 place's bondings or welding or woollen yarn knitting or colligation are fixed into the plane net trellis, as being raw material with the glass fiber, on tricot machine, weave into grid-like, flood PVC again and become glass fiber grid plane grid, the ribbed lattice that forms at the node place of this grid casting cement concret block then.

As shown in Figure 5, present embodiment 2 is substantially the same manner as Example 1, and difference is that coagulating cement soil block 1 is embedded in the checkerwork cell 4 of plane grid 2, and plane grid 2 is for being covered with the steel wire weld mesh crate of PVC.

As shown in Figure 6, present embodiment 3 is made of the connection silk thread 2 between cement concrete block 1 that has wire loop 5 and the cement concrete block 1, connecting silk thread 2 is the ring-like connecting line of antirust steel wire coiled, each cement concrete block 1 is all prefabricated separately, in cement concrete block 1, imbed glass fiber wire loop 5 when prefabricated in advance, pass glass fiber wire loop 5 and couple together in length and breadth and become the ribbed lattice of present embodiment 3 by connecting silk thread 2 again when treating that cement concrete block 1 intensity forms.

As Fig. 7, shown in Figure 8, present embodiment 4 is made of silk thread 2 and cement concrete block 1, silk thread 2 is a two-layer plane grid 2 up and down, cement concrete block 1 interval Discrete Distribution is on one deck plane grid 2, another layer plane grid 2 covers on the cement concrete block 1 of Discrete Distribution, and the two-layer plane grid 2 between cement concrete block 1 and block 1 is equipped with knot 6, this knot 6 passes two-layer plane grid 2 by nylon wire and is formed, in limit portion two-layer plane grid is sewed up connection, form each cement concrete block 1 like this and separated and relatively-stationary ribbed lattice by knot 6.The plane grid 2 of present embodiment is the glass fiber grid grid, during the ribbed lattice of practical application present embodiment, this ribbed lattice is imbedded in the granular material, and it is more remarkable to make the solid of grid and block strengthen effect.

As Fig. 9, shown in Figure 10, present embodiment 5 is substantially the same manner as Example 4, difference is that one deck plane grid 2 is replaced by one deck fexible film 7, cement concrete block 1 interval Discrete Distribution is on one deck fexible film 7, one deck plane grid 2 covers on the cement concrete block 1 of Discrete Distribution, and between cement concrete block 1 and block 1, be equipped with the knot 6, this knot 6 passes fexible film 7 by nylon wire and plane grid 2 is formed, and forms like this that each cement concrete block 1 is separated by knot 6 and relative to having limited the ribbed lattice that the cement concrete block moves.The plane grid 2 of present embodiment is the glass fiber grid grid, and fexible film 7 is the neoprene geomembrane.

As Figure 11, shown in Figure 12, present embodiment 6 is substantially the same manner as Example 5, difference is that fexible film 7 has changed stiffness films 7 into, this stiffness films 7 is the steel sheet of 1 millimeter of thickness, welding is distributed with the upright ring 8 of steel wire on steel sheet, cement concrete block 1 Discrete Distribution at interval stands between the ring 8 at steel wire, one deck plane grid glass fiber grid 2 covers on the cement concrete block 1 of Discrete Distribution, and between cement concrete block 1 and block 1, be equipped with the knot 6, knot 6 passes the upright ring 8 of steel wire by nylon wire and forms with plane grid 2, forms each cement concrete block 1 like this and is separated and relatively-stationary ribbed lattice by knot 6.

Claims

1, is used for the ribbed lattice of civil engineering, it is characterized in that: connect at interval discrete cement concrete block in length and breadth by silk thread and become latticed.

2, a kind of ribbed lattice according to claim 1 is characterized in that: described silk thread is crossing net trellis in length and breadth, and this infall that intersects silk thread in length and breadth is positioned at the discrete cement concrete block in described interval.

3, a kind of ribbed lattice according to claim 1 is characterized in that: described silk thread is a plane grid.

4, a kind of ribbed lattice according to claim 3 is characterized in that: described plane grid is the glass fiber strand grid.

5, a kind of ribbed lattice according to claim 3 is characterized in that: described plane grid is a steel wire grid.

6, according to the described any ribbed lattice of claim 3 to 5, it is characterized in that: described cement concrete block is discrete at interval to be arranged on the node of this grid.

7, according to the described any ribbed lattice of claim 3 to 5, it is characterized in that: described cement concrete block is discrete at interval to be arranged in the checkerwork cell of this grid.

8, a kind of ribbed lattice according to claim 1 is characterized in that: described cement concrete block is provided with wire loop, and silk thread passes wire loop and connects at interval discrete cement concrete block in length and breadth and become latticed.

9, a kind of ribbed lattice according to claim 1 is characterized in that: described silk thread is latticed, and this grid covers the discrete cement concrete block in described interval, and is equipped with knot between at interval discrete cement concrete block.

10, a kind of ribbed lattice according to claim 1, it is characterized in that: described silk thread is latticed, described cement concrete block interval Discrete Distribution is on thin film, described latticed silk thread covers on the at interval discrete cement concrete block, and the knot that has grid to combine with film between the cement concrete block.