CN210104805U - Joint connecting device for self-setting mortar continuous wall composite HDPE (high-density polyethylene) membrane - Google Patents
Joint connecting device for self-setting mortar continuous wall composite HDPE (high-density polyethylene) membrane Download PDFInfo
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- CN210104805U CN210104805U CN201920256898.7U CN201920256898U CN210104805U CN 210104805 U CN210104805 U CN 210104805U CN 201920256898 U CN201920256898 U CN 201920256898U CN 210104805 U CN210104805 U CN 210104805U
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Abstract
The utility model discloses a from piecing together connecting device of compound HDPE diaphragm of mortar continuous wall that congeals includes: a first film sleeve of a first HDPE film sheet; a second sleeve of the second NDPE membrane; an HDPE membrane connector for connecting the first membrane sleeve and the second membrane sleeve to connect the first HDPE membrane and the second HDPE together. The utility model discloses greatly increased the use degree of depth of perpendicular laying of HDPE diaphragm.
Description
Technical Field
The utility model relates to a joint connecting device that is used for engineering fields such as building, mine, water conservancy and environment, in particular to compound HDPE diaphragm of mortar continuous wall congeals.
Background
The self-setting mortar underground continuous wall is widely used for seepage-proofing seepage-stopping control engineering in the fields, and is particularly suitable for constructing an seepage-proofing system in special areas with high underground water level and soft stratum which are easy to collapse, or salt lakes with large underground water specific gravity or heavy chemical engineering environment areas.
The self-setting mortar continuous wall generally cannot meet the environment with higher requirements on pollutant isolation and the like within the permeability coefficient of 10-8m/s, and the self-setting mortar wall has lower strength and poorer chemical erosion resistance due to the strength of about 1MPa, so the durability of the single self-setting mortar underground continuous wall sometimes cannot meet the requirements under specific conditions.
The HDPE diaphragm is widely used in the engineering fields of civil engineering, mines, water conservancy, environment and the like at home, has good corrosion resistance and extensibility as an anti-seepage or isolation effect, is mature produced at home, has the thickness of 3mm and the width of more than 6 meters, and is widely used in the engineering fields of open-air refuse landfills and the like.
At present, HDPE films and self-setting mortar are increasingly adopted abroad to construct composite anti-seepage underground continuous walls, which are used for the seepage control engineering of underground water and pollutants in the engineering fields of permanent civil engineering, mines, water conservancy, environment and the like, and meet the requirements of smaller permeability below 10-11m/s and better durability.
The key for constructing the composite anti-seepage underground continuous wall by the HDPE film and the self-setting mortar is to realize the vertical and continuous laying of the HDPE film in the self-setting mortar slot hole, and the following problems exist:
(1) the ideal connection method in foreign countries is to use multi-machine co-extrusion process to produce the connection lock of HDPE film, but the process equipment and product are expensive, such as US 005497097A.
(2) The HDPE membranes are connected by increasing the laying bridging length of the membranes, namely increasing the permeation path, the laying depth can be limited in a smaller depth range, and because the membranes are not constrained and linked, the existing interval is increased, and the durability and reliability guarantee degree are poor.
(3) The common construction method in China has more waste of the overlapped membranes, thereby influencing the application in fields with higher standard requirements, such as the environmental protection field.
Disclosure of Invention
The utility model aims at providing a self setting mortar continuous wall composite HDPE membrane's joint connecting device.
The utility model provides a from piecing together connecting device of compound HDPE diaphragm of mortar continuous wall that congeals, include:
a first film sleeve positioned at the end of the first HDPE film sheet;
a second film sleeve positioned at the end of the second HDPE film sheet;
an HDPE membrane connector connecting the first membrane sleeve and the second membrane sleeve for connecting the first HDPE membrane and the second HDPE membrane together;
a membrane sleeve support for supporting the first membrane sleeve; and
a membrane sleeve support for supporting the second membrane sleeve;
wherein the first film sleeve and the second film sleeve are closed or non-closed sleeves, and the HDPE is high-density polyethylene.
Preferably, the HDPE connector comprises: the I-shaped frame body is made of steel plates and consists of an upper connecting plate, a lower connecting plate and a vertical plate positioned between the upper connecting plate and the lower connecting plate;
the first side plate is welded on one side of the lower connecting plate;
the first reinforcing rib plate is welded on the outer side of the first side plate and connected with the lower connecting plate;
the second side plate is welded on the other side of the lower connecting plate;
and the second reinforcing rib plate is welded on the outer side of the second side plate and is connected with the lower connecting plate.
Preferably, the HDPE connector comprises:
the I-shaped frame body is made of steel plates and consists of an upper connecting plate, a lower connecting plate and a vertical plate positioned between the upper connecting plate and the lower connecting plate;
the first side plate is welded on one side of the lower connecting plate;
the first reinforcing rib plate is welded on the outer side of the first side plate and connected with the lower connecting plate;
the first side plate and the second side plate are symmetrically distributed on two sides of the vertical plate;
and the second reinforcing rib plate is welded on the outer side of the second side plate and is connected with the upper connecting plate.
Preferably, the first and second sleeves are heat-welded to the first HDP end E and the second HDPE end.
Preferably, a first film sleeve of the first HDPE film sheet is installed into a first space enclosed by the first side plate and the riser; a second film sleeve of the second HDPE film sheet is installed into a second space enclosed by the second side panel and the riser.
In one embodiment, after the first film sleeve is installed in the first space enclosed by the first side plate and the vertical plate, the first HDPE film sheet is parallel to the upper connecting plate and does not overlap the upper connecting plate; after the second film sleeve is installed in a second space enclosed by the second side plate and the vertical plate, the second HDPE film sheet is parallel to the upper connecting plate and does not overlap the upper connecting plate.
In another embodiment, after the first film sleeve is installed in a first space enclosed by the first side plate and the vertical plate, the first HDPE film sheet forms an overlap joint with the upper connecting plate from the upper part of the first space; after the second film sleeve 7b is installed in the second space surrounded by the second side plate and the vertical plate, the second HDPE film sheet forms an overlap joint with the lower connecting plate from the lower part of the second space.
In a further embodiment, after the first film sleeve is installed in a first space enclosed by the first side plate and the vertical plate, the first HDPE film forms an overlap joint with the upper connecting plate from the upper part of the first space; after the second film sleeve 7b is installed in the second space enclosed by the second side plate and the vertical plate, the second HDPE film sheet forms an overlap joint with the lower connecting plate from the upper part of the second space.
The utility model discloses a joint connecting device of compound HDPE membrane of mortar continuous wall congeals still including installing respectively membrane cover support piece in first membrane cover and the second membrane cover.
Compared with the prior art, the beneficial effects of the utility model include:
(1) the joint and accessories thereof are processed only by adopting the common section steel and the steel plate, and the HDPE membrane adopts the existing hot melting welding, so that the cost is not obviously increased;
(2) the application depth can be expanded to the range of using the lifting capacity of a crane, the use depth of vertically laying the HDPE film is greatly increased, and the application field is enlarged;
(3) through the anticorrosion treatment or proper layout of the workpiece, the high durability and reliability of the self-setting mortar and HDPE diaphragm system are ensured;
(4) is an ideal alternative mode for the foreign HDPE membrane interlocking product, and the seepage diameter at the joint is longer, but higher seepage-proofing standard is provided.
The structure, principle and effect of the present invention will be described in detail with reference to the accompanying drawings.
Drawings
Fig. 1a is a schematic view of a first embodiment of a connector of the HDPE film sheet joint connection of the present invention;
figure 1b is a schematic view of a second embodiment of a connector of the HDPE membrane tab connection device of the present invention;
FIG. 2 is a schematic diagram showing an HDPE membrane sleeve of the present invention;
fig. 3a is a schematic view of a first embodiment of the HDPE membrane tab connection device of the present invention;
figure 3b is a schematic view of a second embodiment of the HDPE membrane tab connection of the invention;
fig. 4a is a schematic view of a third embodiment of the HDPE membrane tab connection of the invention;
fig. 4b is a schematic view of a fourth embodiment of the HDPE membrane tab connection of the invention;
fig. 5a is a schematic view of a fifth embodiment of the HDPE membrane tab connection device of the present invention;
fig. 5b is a schematic view of a sixth embodiment of the HDPE membrane tab connection of the invention.
Description of reference numerals: 1-HDPE diaphragm connecting piece; 1 a-an upper connecting plate; 1 b-a riser; 1 c-a second connecting plate; 2-side plate; 3-reinforcing rib plates; 4-a membrane sleeve support; 5-HDPE membrane sheet; 6-HDPE welding; 7 a-a first membrane sleeve, 7 b-a second membrane sleeve.
Detailed Description
The self-setting mortar diaphragm wall composite HDPE film technology is a composite underground diaphragm wall technology which utilizes cement bentonite slurry as stable slurry in the excavation process of an underground groove section, HDPE diaphragms are vertically arranged downwards after excavation and bottom cleaning are finished, the diaphragms are in continuous lap joint through specific tiling or interlocking, and after the slurry in a groove hole is solidified, the self-setting mortar and the HDPE diaphragms are formed.
As shown in fig. 1-2, the utility model discloses a joint connecting device of compound HDPE diaphragm sheet of self-setting mortar continuous wall, includes: a first film sleeve 7a located at the end of the first HDPE film sheet; a second film sleeve 7b positioned at the end of the second NDPE film sheet; an HDPE membrane connector connecting the first membrane sleeve and the second membrane sleeve to connect the first HDPE membrane and the second HDPE membrane together; a membrane sleeve support supporting the first membrane sleeve; a membrane sleeve support supporting the second membrane sleeve; wherein the first film sleeve and the second film sleeve are closed or non-closed sleeves, and the HDPE is high-density polyethylene.
As shown in fig. 1, in one embodiment, the HDPE connector of the present invention comprises: an I-shaped frame body 1 which is made of steel plates and consists of an upper connecting plate 1a, a lower connecting plate 1c and a vertical plate 1b positioned between the upper connecting plate 1a and the lower connecting plate 1 c; a first side plate welded to one side of the lower connecting plate (e.g., the side plate on the left side of fig. 1 a); a first reinforcing rib 3 welded to the outer side of the first side plate, the first reinforcing rib being connected to the lower connecting plate 1 c; a second side plate (e.g., the side plate on the right side of fig. 1 a) welded to the other side of the lower connecting plate 1 c; and the second reinforcing rib plate is welded on the outer side of the second side plate and is connected with the lower connecting plate.
In another embodiment, as shown in fig. 2, the HDPE connector comprises: an I-shaped frame body 1 which is made of steel plates and consists of an upper connecting plate 1a, a lower connecting plate 1c and a vertical plate 1b positioned between the upper connecting plate 1a and the lower connecting plate 1 c; a first side plate welded to one side of the lower connecting plate 1c (e.g., the side plate located on the left side of fig. 1 b); a first reinforcing rib 3 welded to the outer side of the first side plate, the first reinforcing rib being connected to the lower connecting plate 1 c; a second side plate (for example, the side plate on the right side in fig. 1 b) welded on one side of the upper connecting plate 1a, wherein the first side plate and the second side plate are symmetrically distributed on two sides of the vertical plate; and a second reinforcing rib plate 3 welded to the outer side of the second side plate, the second reinforcing rib plate being connected to the upper connecting plate.
Fig. 2 shows a HDPE template, and fig. 2 schematically shows the HDPE template welded at both ends with a first film sleeve 7a and a second film sleeve 7 b. It should be understood that the first and second sleeves 7a, 7b described herein are actually sleeves on two HDPE forms, such that the joining of the two forms is achieved. The end of the HDPE template is connected with the membrane sleeve through a hot melting welding 6.
Referring to one example illustrated in fig. 3a and 3b, a first film sleeve 7a of a first HDPE film sheet is installed into a first space enclosed by a first side plate and a riser; a second film sleeve 7b of the second HDPE film sheet is installed into a second space enclosed by the second side plate and the riser. The utility model discloses a joint connecting device of compound HDPE membrane of mortar continuous wall congeals still including installing respectively membrane cover support piece 4 in first membrane cover 7a and the second membrane cover 7 b.
The difference between fig. 3a and 3b is that in fig. 3a, the membrane sleeve support 4 is a hollow square tube; in fig. 3b, the membrane sleeve support is a hollow circular tube.
In fig. 3a and 3b, after the first film sleeve 7a is installed in the first space enclosed by the first side plate and the vertical plate, the first HDPE film sheet is parallel to the upper connecting plate and does not overlap the upper connecting plate; after the second film sleeve 7b is installed in the second space surrounded by the second side plate and the vertical plate, the second HDPE film sheet is parallel to the upper connecting plate and does not overlap the upper connecting plate.
In another embodiment shown in fig. 4a and 4b, after the first film sleeve 7a is installed in the first space enclosed by the first side plate and the vertical plate, the first HDPE film sheet forms an overlap with the upper connecting plate 1a from the upper part of the first space; after the second film sleeve 7b is installed in the second space surrounded by the second side plate and the vertical plate, the second HDPE film forms an overlap joint with the lower connecting plate 1c from the lower part of the second space.
Referring to fig. 5a and 5b, after the first film sleeve 7a is installed in the first space enclosed by the first side plate and the vertical plate, the first HDPE film sheet forms an overlap with the upper connecting plate 1a from the upper part of the first space; after the second film sleeve 7b is installed in the second space enclosed by the second side plate and the vertical plate, the second HDPE film forms an overlap joint with the lower connecting plate 1b from the upper part of the second space.
The above will be further explained below.
Referring to fig. 1a and 1b, the HDPE membrane joint interlocking lap joint structure comprises a joint device which adopts a structure of secondary processing of i-steel, steel plates and steel plate supporting pieces as the connection of HDPE membrane units, two ends of the HDPE membrane are hot-melted to form a HDPE sleeve, and the HDPE sleeve is filled on a hollow square pipe or a circular pipe with corresponding size.
1) Connecting device for steel structure
Adopt shaping I-steel and steel sheet processing to become as shown in the figure have two perpendicular or central symmetry's indent frame structure, if the processing of deformation is triangle-shaped, circular structure, regards as the utility model discloses the scope of protection.
In order to ensure the rigidity of the frame structure, the frame sealing steel plate is welded with a wing plate of the I-shaped steel, and the triangular rib plates are arranged at intervals, so that the membrane is prevented from being scratched, and the edge grinding treatment is adopted for the structure.
In order to ensure the corrosion resistance of the steel structure, surface treatment and corrosion prevention measures can be added.
2) HDPE membrane unit processing
Referring to fig. 2, the maximum width of the HDPE film has reached 7m, the thickness has reached 3mm, usually, hot-melt welding is adopted, the HDPE film units are welded on a working platform, the films at the ends are folded and fixed according to the size, and double-seam hot-melt welding is adopted to form the film sleeve. And double seam welding is detected according to HDPE welding standard, so that the welding quality is ensured.
3) Auxiliary downward-arranged square tube or circular tube
Before the HDPE membrane is arranged below, a square pipe or a round pipe with corresponding size is assembled in the end part membrane sleeve, the material is steel, HDPE or PVC, and the key is that the connection in the length direction needs to have local enough strength. The auxiliary square or round pipe can be slowly drawn out and cleaned for reuse before the self-setting mortar is solidified, and the auxiliary square or round pipe can be seen from figures 3a to 5 b.
HDPE diaphragm unit passes through the connecting device of steel construction, can form multiple interlocking connection overall arrangement, and it respectively has the advantage:
HDPE diaphragm unit interlocking overall arrangement I type, see fig. 3a and fig. 3b, the HDPE diaphragm is outside interlock on a straight line, concisely understand, but structurally the HDPE diaphragm does not realize the overlap joint, steel construction interlock preferably need do the corrosion protection treatment, is less through HDPE diaphragm infiltration passageway.
HDPE diaphragm unit interlocking overall arrangement II type, see fig. 4a and 4b, HDPE membrane cover is with interlock central symmetry configuration, and the HDPE diaphragm is not on a straight line in the junction, and is simple and clear, but the structural HDPE diaphragm has realized the overlap joint, even steel construction interlock does not do corrosion control, HDPE diaphragm overlap joint itself, and it is longest through HDPE diaphragm infiltration passageway.
HDPE membrane unit interlocking overall arrangement III type, see fig. 5a and 5b, HDPE membrane cover is with interlock asymmetric configuration, and the HDPE membrane is not on a straight line in the junction, but structural HDPE membrane has realized the overlap joint, even steel construction interlock does not do corrosion control, HDPE membrane overlap joint itself, and it is longer through HDPE membrane infiltration passageway.
To sum up, the utility model has the advantages of it is following:
(1) the joint and accessories thereof are processed only by adopting the common section steel and the steel plate, and the HDPE membrane adopts the existing hot melting welding, so that the cost is not obviously increased;
(2) the application depth can be expanded to the range of using the lifting capacity of a crane, the use depth of vertically laying the HDPE film is greatly increased, and the application field is enlarged;
(3) through the anticorrosion treatment or proper layout of the workpiece, the high durability and reliability of the self-setting mortar and HDPE diaphragm system are ensured;
(4) is an ideal alternative mode for the foreign HDPE membrane interlocking product, and the seepage diameter at the joint is longer, but higher seepage-proofing standard is provided.
Although the present invention has been described in detail, the present invention is not limited thereto, and those skilled in the art can make various modifications according to the principle of the present invention. Therefore, modifications made in accordance with the principles of the present invention should be understood to fall within the scope of the present invention.
Claims (10)
1. A joint connecting device for a self-setting mortar continuous wall composite HDPE membrane is characterized by comprising:
a first film sleeve positioned at the end of the first HDPE film sheet;
a second film sleeve positioned at the end of the second HDPE film sheet;
an HDPE membrane connector connecting the first membrane sleeve and the second membrane sleeve to connect the first HDPE membrane and the second HDPE membrane together;
a membrane sleeve support for supporting the first membrane sleeve; and
a membrane sleeve support for supporting the second membrane sleeve;
wherein the first film sleeve and the second film sleeve are closed or non-closed sleeves, and the HDPE is high-density polyethylene.
2. The joint connection device of self-setting mortar continuous wall composite HDPE membrane according to claim 1, wherein said HDPE coupler comprises:
the I-shaped frame body is made of steel plates and consists of an upper connecting plate, a lower connecting plate and a vertical plate positioned between the upper connecting plate and the lower connecting plate;
the first side plate is welded on one side of the lower connecting plate;
the first reinforcing rib plate is welded on the outer side of the first side plate and connected with the lower connecting plate;
the second side plate is welded on the other side of the lower connecting plate;
and the second reinforcing rib plate is welded on the outer side of the second side plate and is connected with the lower connecting plate.
3. The joint connection device of self-setting mortar continuous wall composite HDPE membrane according to claim 1, wherein said HDPE coupler comprises:
the I-shaped frame body is made of steel plates and consists of an upper connecting plate, a lower connecting plate and a vertical plate positioned between the upper connecting plate and the lower connecting plate;
the first side plate is welded on one side of the lower connecting plate;
the first reinforcing rib plate is welded on the outer side of the first side plate and connected with the lower connecting plate;
the first side plate and the second side plate are symmetrically distributed on two sides of the vertical plate;
and the second reinforcing rib plate is welded on the outer side of the second side plate and is connected with the upper connecting plate.
4. The joint connecting device of self-setting mortar continuous wall composite HDPE membrane according to claim 1, wherein said first and second sleeves are hot-melt welded to the first HDP end E and the second HDPE end.
5. The joint connection device of self-setting mortar continuous wall composite HDPE membrane according to claim 2 or 3, wherein the first sleeve of the first HDPE membrane is installed in the first space enclosed by the first side plate and the vertical plate; a second film sleeve of the second HDPE film sheet is installed into a second space enclosed by the second side panel and the riser.
6. The joint connecting device of self-setting mortar continuous wall composite HDPE membrane according to claim 5, wherein after the first sleeve is installed in the first space enclosed by the first side plate and the vertical plate, the first HDPE membrane is parallel to the upper connecting plate and does not overlap the upper connecting plate; after the second film sleeve is installed in a second space enclosed by the second side plate and the vertical plate, the second HDPE film sheet is parallel to the upper connecting plate and does not overlap the upper connecting plate.
7. The joint connecting device of self-setting mortar continuous wall composite HDPE membrane according to claim 5, wherein after the first membrane sleeve is installed in the first space enclosed by the first side plate and the vertical plate, the first HDPE membrane forms an overlap joint with the upper connecting plate from the upper part of the first space; after the second film sleeve is installed in a second space enclosed by the second side plate and the vertical plate, the second HDPE film sheet forms an overlap joint with the lower connecting plate from the lower part of the second space.
8. The joint connecting device of self-setting mortar continuous wall composite HDPE membrane according to claim 5, wherein after the first membrane sleeve is installed in the first space enclosed by the first side plate and the vertical plate, the first HDPE membrane forms an overlap joint with the upper connecting plate from the upper part of the first space; after the second film sleeve is installed in a second space enclosed by the second side plate and the vertical plate, the second HDPE film sheet forms an overlap joint with the lower connecting plate from the upper part of the second space.
9. The joint connecting device of self-setting mortar continuous wall composite HDPE membrane according to claim 5, wherein the sleeve supporting members in the first sleeve and the second sleeve are hollow square tubes.
10. The joint connecting device for self-setting mortar continuous wall composite HDPE membranes according to claim 5, wherein the sleeve supporting members in the first sleeve and the second sleeve are hollow round tubes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920256898.7U CN210104805U (en) | 2019-02-28 | 2019-02-28 | Joint connecting device for self-setting mortar continuous wall composite HDPE (high-density polyethylene) membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920256898.7U CN210104805U (en) | 2019-02-28 | 2019-02-28 | Joint connecting device for self-setting mortar continuous wall composite HDPE (high-density polyethylene) membrane |
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| CN210104805U true CN210104805U (en) | 2020-02-21 |
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| CN201920256898.7U Active CN210104805U (en) | 2019-02-28 | 2019-02-28 | Joint connecting device for self-setting mortar continuous wall composite HDPE (high-density polyethylene) membrane |
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