CN2670421Y

CN2670421Y - Separated sheets

Info

Publication number: CN2670421Y
Application number: CNU2003201181425U
Authority: CN
Inventors: 李兰英
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-11-17
Filing date: 2003-11-17
Publication date: 2005-01-12
Anticipated expiration: 2013-11-17

Abstract

The utility model provides an isolated sheet which is characterized in that the isolated sheet is provided with a spaced through hole. The isolated sheet can not only obtain the isolating function, but also the isolated interlayer is made to be continuous. The isolated sheet is applied to the civil engineering fields among the road surface structure interlayer of all kinds of high roads, the embankment section of the soft soil foundation, etc.

Description

A kind of spacer

One) technical field

The utility model relates to building materials geosynthetics field, especially relates to a kind of spacer that is used to isolate the earth structure material in this field.

Two) background technology

Spacer is used widely, and in buffer action, common a kind of application is to be used in the pavement of road engineering, is laid in the bituminous pavement top, makes the crack in the road structure obtain isolating, and does not make crack reflection to top course.This spacer geotextiles commonly that is used in the road structure, the shortcoming of the buffer action of this spacer is: though the crack of spacer lower floor is isolated, but the continuity between the road surface structare layer is caused destruction fully, make and present slippage trend between the road surface structare layer, like this, though spacer has been isolated the crack of road structure under the spacer, but breaks down not only appears in road surface structare layer on the spacer easily, also easily cause the road surface structare layer bottom surface tensile stress above the spacer to increase, and make the road surface structare layer on spacer cracking occur.Equally, also there are these situations in the spacer that (when laying other ground surface material layers on the cement concrete pavement) lays under the cement pavement seam or on the seam.Spacer the application of other various occasions also exist with pavement engineering in identical situation, make that promptly the continuity between the segregate levels is destroyed, and make interlayer be slippage trend.

Three) content

The purpose of this utility model is to provide a kind of both can play buffer action, can make segregate interlayer be successional a kind of spacer again, when being used for pavement joint, can also play waterproof action.

The purpose of this utility model is achieved like this: a kind of spacer is characterized in that: open-work is at interval arranged on this spacer.

As a kind of form of the present utility model, described spacer can be film; This film can be geomembrane or plastic foil; This film also can be woven cloths or non-weaving cloth.

As another kind of form of the present utility model, can also there be silk thread to link to each other in the open-work of described spacer.

As another kind of form of the present utility model, described spacer can be for there being the macromolecular material tack coat at least one layer film.

As another kind of form of the present utility model, described spacer can be for accompanying granular material between the double-layer films.

As another kind of form of the present utility model, described open-work can be rounded.

As another kind of form of the present utility model, described open-work can be polygon.

Owing to adopt above-mentioned spacer, when this spacer when interlayer plays buffer action, the open-work on the spacer can make interlayer play continuous action, and the spacer between the open-work can play buffer action.When for example the utility model spacer such as geotextiles are used in the bituminous pavement top, interval open-work on the geotextiles can make the bituminous mixture of geotextiles levels be in contact with one another, promote the continuity between the asphalt surface course, do not cause the asphalt surface course on the geotextiles slippage to occur, also eliminate the tensile stress of asphalt surface course bottom surface on the geotextiles, made asphalt surface course bottom surface on the geotextiles cracking due to the tensile stress also can not occur; Simultaneously, the geotextiles between the open-work makes that the pavement crack under the geotextiles is isolated, though through-hole position remains in the crack, isolated crack has been not enough to the road structure on the geotextiles is formed influence; And, when geotextiles is spilt cloth adhesion coating pitch up and down, all can form waterproofing course at through-hole position and non-through-hole position.When under the cement concrete pavement seam, using the utility model spacer, open-work can make the cement concrete on the spacer combine with basic unit closely, and, if during water proofing property spacers such as use geomembrane, make open-work leave seam during laying, can also under the cement concrete pavement seam, form waterproofing course.

Below in conjunction with the drawings and specific embodiments a kind of spacer of the utility model is described further.

Four) description of drawings

Fig. 1 is a prior art spacer schematic perspective view;

Fig. 2 is the spacer schematic perspective view of the utility model embodiment 1;

Fig. 3 is the spacer schematic perspective view of the utility model embodiment 2;

Fig. 4 is the spacer schematic perspective view of the utility model embodiment 3;

Fig. 5 is the spacer floor map of the utility model embodiment 4;

Fig. 6 is the spacer A-A schematic cross-section of the utility model embodiment 4.

Fig. 7 is another form schematic cross-section of the utility model embodiment 4.

Fig. 8 is the spacer floor map of the utility model embodiment 5;

Fig. 9 is the spacer B-B schematic cross-section of the utility model embodiment 5.

Five) specific embodiment

As shown in Figure 2, the spacer 1 of present embodiment 1 is for there being open-work 3 at interval on the film 2, and present embodiment film 2 is a plastic foil, and open-work 3 is circular, and this circular through-hole 3 can form in plastic foil 2 upper punch holes.

As shown in Figure 3, the spacer 1 of present embodiment 2 is provided with pentagon open-work 3 at interval for weaving through compiling geotextiles 2.This pentagon open-work 3 can not have forming through compiling geotextiles 2 upper punch holes of open-work for forming when compiling through compiling geotextiles 2 yet, and open-work 3 of the present utility model is a pentagon, also can be quadrangle, hexagonal shape.

As shown in Figure 4, present embodiment 3 is substantially the same manner as Example 2, difference is to have through lacing line 4 in the interval quadrangle open-work 3 on compiling geotextiles 2 and passes, present embodiment be one through lacing line 4, also can pass each open-work 3 for many silk threads 4 are arranged.Silk thread 4 passes open-work 3 and can make and be in the reinforcement state in the open-work 3.

As Fig. 5, shown in Figure 6, present embodiment 4 spacers 1 constitute by being bonded with one deck pitch macromolecular material 5 on the thin film 2, open-work 3 is at interval arranged on spacer 1, the film 2 of this embodiment is weaved geotextiles for polyester, on the pitch macromolecular material tack coat 5 of present embodiment 4 one deck polyester can also be set again and weave geotextiles 2, as shown in Figure 7, the multilayer polyester also can be set and weave geotextiles 2 and multilayer pitch macromolecular material tack coat 5.

As Fig. 8, shown in Figure 9, the spacer 1 of present embodiment 5 is made of double-layer films 2 and the granular material rubble 6 that is clipped in the double-layer films 2, and open-work 3 is at interval arranged between the double-layer films 2 of enwrapped granule material rubble 6.The film 2 of present embodiment 5 is non-woven non-woven geotextile.

Claims

1, a kind of spacer is characterized in that: open-work is at interval arranged on this spacer.

2, a kind of spacer according to claim 1 is characterized in that: described spacer is a film.

3, a kind of spacer according to claim 2 is characterized in that: described film is a plastic sheeting.

4, a kind of spacer according to claim 2 is characterized in that: described film is a woven cloths;

5, a kind of spacer according to claim 2 is characterized in that: described film is a non-weaving cloth;

6, a kind of spacer according to claim 1 is characterized in that: described spacer is that the macromolecular material tack coat is arranged at least one layer film.

7, a kind of spacer according to claim 1 is characterized in that: described spacer is to accompany granular material between the double-layer films.

8, a kind of spacer according to claim 1 is characterized in that: have silk thread to link to each other in the described open-work.

9, according to claim 1,2,6,7,8 described any spacers, it is characterized in that: described open-work is rounded.

10, according to claim 1,2,6,7,8 described any spacers, it is characterized in that: described open-work is polygon.