CN2573554Y

CN2573554Y - Reinforcement gridiron

Info

Publication number: CN2573554Y
Application number: CN 02272559
Authority: CN
Inventors: 李兰英
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-08-16
Filing date: 2002-08-16
Publication date: 2003-09-17
Anticipated expiration: 2012-08-16

Abstract

The utility model discloses a reinforcement gridiron used for civil engineering, which is characterized in that interval discrete blocks are vertically and horizontally connected to form a gridiron shape by threads. The utility model not only overcomes the defects that a plane lattice is interlocked and the transfer stress is only in limited space of a plane range, but also overcomes the defects that the adhesion interlocking action of reinforced materials can not be exerted caused by earthwork separation. Besides, the reinforcement gridiron can improve the capacity of interlocking granules or transferring stress. 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, reinforcement earth blocking walls, etc.

Description

Reinforcement gridiron

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 Reinforcement gridiron, 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 Reinforcement gridiron, 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 Reinforcement gridiron.

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

As a kind of form of the present utility model, described block can also can be the block of stone or other materials for fibrous concrete or various cement concrete blocks such as polymer concrete or high-strength concrete.

As another kind of form of the present utility model, described block is the cement concrete block, and 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 glass fiber strand grid or steel wire grid.

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

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

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

Owing to adopt above-mentioned Reinforcement gridiron; when Reinforcement gridiron 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 block; owing to be full of granular material or the non-particulate material that is reinforced between the at interval discrete block; what thereby the power on the 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; block in the Reinforcement gridiron of the present utility model can with produced better adhesion stress and interlock action by reinforcement material; thereby the ability of this Reinforcement gridiron interlocking particle or transmission stress is strengthened greatly; sphere of action is increased in the space up and down of Reinforcement gridiron greatly; and Reinforcement gridiron manufacturing process of the present utility model is simple; cheap; if cement concrete block on the Reinforcement gridiron 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 Reinforcement gridiron is described further.

Four) description of drawings

Fig. 1 is a prior art plane Reinforcement gridiron geo-grid schematic diagram;

Fig. 2 is a prior art solid type Reinforcement gridiron 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 block 1, block 1 is the cement concrete block, 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 Reinforcement gridiron 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 promptly is embedded in node 3 in the cement concrete block 1 like this, and the demoulding promptly becomes the Reinforcement gridiron 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 Reinforcement gridiron 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 Reinforcement gridiron 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 cement concrete 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 Reinforcement gridiron 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 Reinforcement gridiron by knot 6.The plane grid 2 of present embodiment is the glass fiber grid grid, during the Reinforcement gridiron of practical application present embodiment, this Reinforcement gridiron is imbedded in the granular material, it is more remarkable to make the solid of grid and block strengthen effect, certainly, the cement concrete block 1 of present embodiment also can replace with stone.

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, block 1 is a stone, stone 1 interval Discrete Distribution is on one deck fexible film 7, one deck plane grid 2 covers on the stone 1 of Discrete Distribution, and between stone 1 and stone 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 block 1 is separated by knot 6 and relative to having limited the Reinforcement gridiron that 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, 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 block 1 of Discrete Distribution, and between 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 block 1 like this and is separated and relatively-stationary Reinforcement gridiron by knot 6.

Claims

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

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

3, Reinforcement gridiron according to claim 1 is characterized in that: described silk thread is a plane grid.

4, Reinforcement gridiron according to claim 3 is characterized in that: described cement concrete block is discrete at interval to be arranged on the node of this grid.

5, Reinforcement gridiron according to claim 3 is characterized in that: described cement concrete block is discrete at interval to be arranged in the checkerwork cell of this grid.

6, Reinforcement gridiron according to claim 1 is characterized in that: described block is the cement concrete block, and this cement concrete block is provided with wire loop, and silk thread passes wire loop and connects at interval discrete block in length and breadth and become latticed.

7, Reinforcement gridiron according to claim 1 is characterized in that: described silk thread is latticed, and this grid covers the discrete block in described interval, and is equipped with knot between at interval discrete block.

8, Reinforcement gridiron according to claim 1, it is characterized in that: described silk thread is latticed, Discrete Distribution is on thin film at interval for described block, and described latticed silk thread covers on the at interval discrete block, and the knot that has grid to combine with film between block.