CN2565873Y

CN2565873Y - Strengthening grid

Info

Publication number: CN2565873Y
Application number: CN 02272238
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 strengthening grid used for reinforcement in civil engineering, which is characterized in that alternate discrete blocks are vertically and horizontally connected to form a grid shape by silk threads. The strengthening grid of the utility model has the advantages of large action range, obvious action effect, simple manufacture technology, low cost and firm combination of connection points. The utility model is used for various reinforcement occasions of civil engineering, such as soft foundation pad layers, bridge head soil filling, any structural layer of a road surface, positions among structural layers, side slope fixedness, reinforced earth retaining wall, etc.

Description

A kind of reinforcement grid

One) technical field

The utility model relates to civil engineering and strengthens 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 that plane is strengthened grid, 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 in arbitrary deck of highway pavement and can prevent reflection crack, be laid on and be used to strengthen aspects such as tension, and reinforced earth bulkhead in the road gallet layer.

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, its effect major limitation is in the confined space up and down on plane; Even when granular material did not embed plane grid, planar the snap-in force of Chan Shenging was also very limited; 2, the loaded down with trivial details complexity of manufacturing process, the cost height: 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.

Another kind of for solid type reinforcement grid, 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, do not connect mutually each other, the material in the whole geotechnical grid layer is all isolated, causes the adhesion interlock action of material to can not get performance, 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 action effect is remarkable, and manufacturing process is simple, and cost is low, and node is in conjunction with firm reinforcement grid.

The utility model purpose is achieved like this: be used for a kind of reinforcement grid of civil engineering reinforcement, 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, the discrete block in described interval can be the coagulating cement soil block, and described silk thread is cross-like in length and breadth, and this crosspoint that intersects silk thread in length and breadth is positioned at the discrete cement concrete block in described interval.Described cement concrete block can be 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, the described silk thread that connects in length and breadth is a plane grid.

As another kind of form of the present utility model, the discrete block in described interval 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 cement concrete block in length and breadth and become latticed.

As another kind of form of the present utility model, the discrete block in described interval can be upright plenum chamber shape.

As another kind of form of the present utility model, the discrete block in described interval can be provided with column in this upright plenum chamber for upright plenum chamber shape.

As another kind of form of the present utility model, the discrete block in described interval can be upright plenum chamber shape, and this upright plenum chamber can be tubbiness, can be provided with through hole on the upstanding wall of the upright plenum chamber of this tubbiness.

As another kind of form of the present utility model, the discrete block in described interval can be the vertical surface that intersects.

As another kind of form of the present utility model, the discrete block in described interval can be the vertical surface that intersects.This vertical surface that intersects can be crossing net lattice face.

Owing to adopt above-mentioned reinforcement grid; when the reinforcement grid 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 defective of the confined space of planar range; and overcome the defective that the adhesion interlock action that is reinforced material layer that geotechnical grid causes can not get bringing into play; and the ability of this reinforcement grid interlocking particle or transmission stress is strengthened greatly; sphere of action increases in the space up and down of strengthening grid greatly; and reinforcement grid manufacturing process of the present utility model is simple, cheap.

Below in conjunction with the drawings and specific embodiments the utility model being strengthened grid is described further.

Four) description of drawings

Fig. 1 strengthens grid geo-grid schematic diagram for the prior art plane;

Fig. 2 strengthens grid geotechnical grid schematic diagram for the prior art solid type;

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

Fig. 4 is the silk thread schematic diagram of the connection block of the utility model embodiment 1;

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

Fig. 6 is the plane structure schematic diagram of the utility model embodiment 3;

Fig. 7 is the A-A cross sectional view of Fig. 6;

Fig. 8 is the another kind of tubbiness block perspective view that can be used for the utility model embodiment 3;

Fig. 9 is the plane structure schematic diagram of the utility model embodiment 4;

Figure 10 is the B-B cross sectional view of Fig. 9;

Figure 11 is the perspective view of the utility model embodiment 5;

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, at each node 3 place coagulating cement soil block 1 is set, promptly constitute the reinforcement grid of present embodiment 1, the method to set up of coagulating cement soil block 1 can be to set up the template chamber that identical shaped cavity is arranged with coagulating cement soil block 1 at each node 3 place of silk thread 2 in length and breadth, node 3 can be recessed in the centre of template chamber, casting cement concrete in the cavity of template chamber like this, promptly node 3 is embedded on the coagulating cement in the block 1, the demoulding promptly becomes the reinforcement grid 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 grid 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-likely, flood PVC again and become glass fiber grid plane grid, form the reinforcement grid at the node place of this grid casting cement concret block then, the cement concrete block of node place cast has not only strengthened transmission stress ability, and makes the combination of node more firm.

As shown in Figure 5, present embodiment 2 is made of the connection silk thread 2 between block 1 that has wire loop 4 and the block 1, connecting silk thread 2 is the ring-like line of antirust steel wire coiled, block 1 is the coagulating cement soil block, each coagulating cement soil block is all prefabricated separately, imbed antirust steel wire wire loop 4 when prefabricated in coagulating cement soil block 1 in advance, treating to be coupled together in length and breadth by connection silk thread 2 when coagulating cement soil block 1 intensity forms becomes the reinforcement of present embodiment 2 grid again.

As Fig. 6, shown in Figure 7, present embodiment 3 is made of silk thread 2 and block 1, and silk thread 2 is the polyethylene band of stretched orientation, the polyvinyl chloride three-dimensional grid chamber 1 of block 1 for having hole 5 in the middle of the sidewall; Silk thread 2 passes the hole 5 on each three-dimensional grid chamber 1 in length and breadth, has connected three-dimensional grid chamber 1, and silk thread 2 forms crosspoint 3 in three-dimensional grid chamber 1 in length and breadth, place, crosspoint firm welding.The three-dimensional grid chamber 1 of present embodiment 2 can also be for having the round barrel shape in hole on the sidewall, as shown in Figure 8, drum is a bamboo trunk, has hole 5 on the bamboo trunk sidewall.

As Fig. 9, shown in Figure 10, present embodiment 4 is substantially the same manner as Example 3, difference is to be provided with soldier piles 6 in the inside of partitive case chamber 1, and soldier piles 6 are the coagulating cement earth pillar, after lattice chamber 1 forms, set up the cement concrete column template being provided with on the lattice chamber of soldier piles, and the casting cement concrete forms.

As shown in figure 11, present embodiment 5 is made of silk thread 2 and block 1, wherein silk thread 2 is for being the polyethylene tape of stretched orientation, block 1 is the upright piece of " X " type that two PVC plates are welded into, polyethylene tape 2 is welded on the sidewall of the upright piece 1 of " X " type, and it is latticed that polyethylene tape 2 connects 1 one-tenth of the upright piece of " X " type in length and breadth.The block 1 of present embodiment 4 can also be the upright grid of " X " type of being welded into, as welds antirust steel wire grid, and silk thread passes the upright grid hole of each " X " type and connects into latticed.

Claims

1, is used for a kind of reinforcement grid of civil engineering reinforcement, it is characterized in that: connect at interval discrete block in length and breadth by silk thread and become latticed.

2, a kind of reinforcement grid according to claim 1 is characterized in that: the discrete block in described interval is the coagulating cement soil block, and described silk thread is cross-like in length and breadth, and this crosspoint that intersects silk thread in length and breadth is positioned at the discrete cement concrete block in described interval.

3, a kind of reinforcement grid according to claim 2 is characterized in that: describedly be in length and breadth that the silk thread of cross-like is a plane grid.

4, a kind of reinforcement grid according to claim 1, it is characterized in that: the discrete block in described interval is the cement concrete block, this 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.

5, a kind of reinforcement grid according to claim 1 is characterized in that: the discrete block in described interval is upright plenum chamber shape.

6, a kind of reinforcement grid according to claim 5 is characterized in that: be provided with column in the described upright plenum chamber.

7, a kind of reinforcement grid according to claim 5, it is characterized in that: described upright plenum chamber is a tubbiness, the upstanding wall of the upright plenum chamber of this tubbiness is provided with through hole.

8, a kind of reinforcement grid according to claim 7, it is characterized in that: the upright plenum chamber of described tubbiness is a bamboo trunk.

9, a kind of reinforcement grid according to claim 1 is characterized in that: the discrete block in described interval is the vertical surface that intersects.

10, a kind of reinforcement grid according to claim 9 is characterized in that: the described vertical surface that intersects is for intersecting grid surface.