CN103806472B - Frost-and-expansion resistant protection body for water transmission tower of water reservoir, and arranging method thereof - Google Patents
Frost-and-expansion resistant protection body for water transmission tower of water reservoir, and arranging method thereof Download PDFInfo
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- CN103806472B CN103806472B CN201410083864.4A CN201410083864A CN103806472B CN 103806472 B CN103806472 B CN 103806472B CN 201410083864 A CN201410083864 A CN 201410083864A CN 103806472 B CN103806472 B CN 103806472B
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Abstract
The invention discloses a frost-and-expansion resistant protection body for a water transmission tower of a water reservoir and an arranging method thereof. The frost-and-expansion resistant protection body for the water transmission tower of the water reservoir comprises a geomembrane, a polyethylene heat insulation plate, a composite geomembrane, angle steel and a steel plate, wherein the geomembrane is arranged on the outer surface of the water transmission tower; the polyethylene heat insulation plate is arranged on the outer surface of the geomembrane; the composite geomembrane is arranged on the outer surface of the polyethylene heat insulation plate; a plurality of pieces of angle steel are arranged at the edges and the corners of the water transmission tower outside the composite geomembrane; the steel plate is detachably connected with the angle steel; the arranging method comprises the following steps: tightly adhering the geomembrane to the outer surface of the water transmission tower; covering the polyethylene heat insulation plate on the geomembrane; adhering the four edges of the polyethylene heat insulation plate; adhering the composite geomembrane onto the outer surface of the polyethylene heat insulation plate; arranging the angle steel at the edges and the corners of the water transmission tower; connecting the steel plate with the angle steel by bolts; fixing the protection body. According to the frost-and-expansion resistant protection body for the water transmission tower of the water reservoir, the water transmission tower of the water reservoir can be protected very well, and the damage to the water transmission tower of the water reservoir under a low temperature is prevented.
Description
Technical field
The invention belongs to hydraulic engineering technical field, be specifically related to a kind of reservoir water delivery tower anti-freeze expansion protective and method to set up thereof.
Background technology
North cold area, reservoir water delivery tower in the winter time under subzero temperature effect the water surface freeze, reservoir water delivery tower can produce frost heaving failure under ice push effect, at present, north cold area reservoir manually takes deicing measure to carry out deicing to water delivery tower every several days needs, to reduce the frost heaving failure to reservoir water delivery tower, and artificial deicing adds the difficulty of engineering cost and deicing, therefore, develop a kind of measure preventing reservoir water delivery tower frost heaving failure, the anti-freeze expansion of north cold area reservoir water delivery tower is had important practical significance.
Summary of the invention
the technical problem solved:the object of the invention is to provide a kind of reservoir water delivery tower anti-freeze expansion protective and method to set up thereof to solve the deficiencies in the prior art.
technical scheme:
A kind of reservoir water delivery tower anti-freeze expansion protective, comprises geomembrane, polytene heat-insulation plate, composite geo-membrane, angle steel and steel plate; Wherein geomembrane is arranged on water delivery tower external surface, and polytene heat-insulation plate is arranged at geomembrane external surface, and composite geo-membrane is arranged at polytene heat-insulation plate external surface, and angle steel is arranged at the water delivery tower edges and corners outside composite geo-membrane, and steel plate and angle steel removably connect.
Described reservoir water delivery tower anti-freeze expansion protective, the preferably bolt that removably connects connects.
Described reservoir water delivery tower anti-freeze expansion protective, geomembrane is preferably polypropylene geotextile film.
Described reservoir water delivery tower anti-freeze expansion protective, is preferably added with the age resister that mass fraction is 3% in polypropylene geotextile film.
Described reservoir water delivery tower anti-freeze expansion protective, described composite geo-membrane is preferably polypropylene material and makes.
Described reservoir water delivery tower anti-freeze expansion protective, is preferably added with the age resister that mass fraction is 3% in described polypropylene material.
The method to set up of the reservoir water delivery tower anti-freeze expansion protective described in more than one, step is as follows:
(1) geomembrane is layed in water delivery tower external surface;
(2) polytene heat-insulation plate is layed in outside geomembrane;
(3) composite geo-membrane is layed in outside polytene heat-insulation plate;
(4) angle steel is separately positioned on the corner angle of water delivery tower outside composite geo-membrane, steel plate is connected with angle steel by bolt, protective endothecium structure is fixed.
The application of above-described reservoir water delivery tower anti-freeze expansion protective in hydraulic engineering.
beneficial effect:
Reservoir water delivery tower anti-freeze expansion protective of the present invention wherein between each key element co-operating principle as follows: (1) utilizes the double action of geomembrane and composite geo-membrane to prevent reservoir water from dividing and enters water delivery tower; (2) polytene heat-insulation plate has the destruction preventing reservoir ice body to water delivery tower, can adapt to the uneven effect of frost-heaving deformation simultaneously, thus prevent ice push to the destruction of water delivery tower; (3) polytene heat-insulation plate itself has insulation and prevents frost heaving failure effect; (4) geomembrane, composite geo-membrane, polytene heat-insulation plate reach anti-freeze expansion destruction by mutually acting synergistically.
The present invention is compared with present situation homogeneous earth dam slope test, and tool has the following advantages:
1. the present invention utilizes geomembrane and composite geo-membrane double action to reach anti-seepage effect, and anti-seepage effect is obviously better than other materials;
2. polytene heat-insulation plate is pushed away layer deformation buffer as anti-icing by the present invention, and polytene heat-insulation plate good heat-insulation effect, inhomogeneous deformation are little, and the anti-icing ability of pushing away is strong, and antifreezing expansion effect is good;
3. utilize steel plate to be bolted angle steel geomembrane, polytene heat-insulation plate and composite geo-membrane are fixed, strengthen protective further, simultaneously for convenience detach with maintenance.
4. low, the environmental protection of material therefor cost of the present invention, overcomes high, the dangerous shortcoming such as large of artificial deicing cost.
Frost heaving amount in the winter time can be stable after tested maintains about 0.2cm for reservoir water delivery tower anti-freeze expansion protective provided by the invention; when surface temperature is-20 DEG C simultaneously; the inner 10cm place of protective can reach 7 DEG C, and 15cm place can reach 10 DEG C, can play anti-frost protection effect well.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of reservoir water delivery tower anti-freeze expansion method of the present invention.
Fig. 2 is reservoir water delivery tower angle steel of the present invention and steel plate connection diagram.
Fig. 3 is angle steel and steel plate connection diagram.
In Fig. 1-Fig. 3,1 is geomembrane, and 2 is polytene heat-insulation plate, and 3 is composite geo-membrane, and 4 is angle steel, and 5 is steel plate, and 6 is water delivery tower, and 7 is bolt.
detailed description of the invention:
The present invention is to provide a kind of reservoir water delivery tower anti-freeze expansion protective and method to set up thereof; utilize geomembrane, polytene heat-insulation plate, composite geo-membrane as anti-freeze expansion material; moisture is stoped to enter water delivery tower by geomembrane and composite geo-membrane as dual impervious material; utilize polytene heat-insulation plate as heat insulating material simultaneously and overcome ice push deformable material, thus reaching reservoir water delivery tower antifreezing expansion effect.Below in conjunction with accompanying drawing, reservoir water delivery tower anti-freeze expansion protective provided by the invention and method to set up thereof are specifically described.
Embodiment 1
As shown in Figure 1, be a kind of reservoir water delivery tower anti-freeze expansion protective provided by the invention, comprise geomembrane 1, polytene heat-insulation plate 2, composite geo-membrane 3, angle steel 4 and steel plate 5; Wherein geomembrane 1 is close to reservoir water delivery tower 6 external surface, arranges polytene heat-insulation plate 2 outside geomembrane 1, pastes composite geo-membrane 3, angle steel 4 is stuck in the corner angle of water delivery tower, is then connected with angle steel 4 with steel plate 5 at polytene heat-insulation plate 2 lateral surface.
As shown in Figure 2, be reservoir water delivery tower angle steel of the present invention and steel plate connection diagram, comprise angle steel 4, steel plate 5, water delivery tower 6 and bolt 7.Wherein angle steel 4 is connected by bolt 7 with steel plate 5.
As shown in Figure 3, be angle steel and steel plate connection diagram, can find out that steel plate 5 is positioned over inside angle steel 4, be connected by bolt 7, also steel plate 5 can be positioned over outside angle steel 4 in use procedure and be bolted, not affect result of use.
In the present embodiment, reservoir water delivery tower is four-prism, and the water delivery tower length of side is 5m, and girth is 20m, and water delivery tower height is 20m; Geomembrane used is 300g/m
2, thick is 0.3mm, and fabric width is 2.0m; Polytene heat-insulation plate is 20kg/m
3, thick is 6cm, is of a size of 5m × 2m (long × wide); Composite geo-membrane is 300g/m
2, thick is 0.3mm; Fabric width is 2m angle steel think gauge is 40*5, and long is 2.2m; Steel plate is thick is 10mm, and wide is 100mm, and long is 4.9m; The diameter of bolt 7 is 10mm.
As follows with the method to set up of upper storage reservoir water delivery tower anti-freeze expansion protective:
(1) geomembrane 1 is laid one deck along water delivery tower 6 external surface circumferential direction, after laying one week, the end of geomembrane 1 is pasted onto on the geomembrane 1 laid;
(2) 4 blocks of polytene heat-insulation plates 2 are laid one deck along geomembrane 1 lateral surface, four limit adhesive tapes of adjacent polytene heat-insulation plate are pasted;
(3) one deck composite geo-membrane 3 is laid at the lateral surface laying complete polytene heat-insulation plate 2 along girth, composite geo-membrane 3 around polytene heat-insulation plate after 2 one weeks, with geomembrane bonding machine the end of composite geo-membrane 3 is pasted onto on the composite geo-membrane 3 laid;
(4) be arranged in by angle steel 4 on the corner angle of water delivery tower, be then connected with angle steel 4 by bolt 7 with 8 block plates 5,2 block plates are respectively used in four-prism 4 faces, and geomembrane 1, polytene heat-insulation plate 2 and composite geo-membrane 3 are fixed on water delivery tower 6.
In the present embodiment, geomembrane 1 and composite geo-membrane 3 are all prepared from by polypropylene material, because being shown that by test this material can adapt to low temperature environment better, stable performance at low ambient temperatures, can play excellent leak preventing effect; Contain mass fraction in polypropylene material is the age resister of 3% simultaneously, can play good anti-aging effect.Because show that anti-aging effect is best when being the age resister of 3% containing mass fraction by contrast test repeatedly, the application life of film is also longer.Certainly geomembrane other materials also can being selected in actual use to prepare and composite geo-membrane; and whether add antioxidant and the amount adding antioxidant; these all belong in protection scope of the present invention, and the present embodiment is just by testing the optimum embodiment drawn.
At reservoir water delivery tower anti-freeze expansion protective surface of the present invention at right angle setting displacement transducer, temperature pick up, carry out measure of merit, result of the test is as follows:
Reservoir water delivery tower anti-freeze expansion protective frost heaving amount of the present invention
| Project | November | December | January | February |
| Frost heaving amount (cm) | 0.2 | 0.2 | 0.2 | 0.2 |
The temperature of reservoir water delivery tower anti-freeze expansion protective different depth of the present invention
| 0cm | 5cm | 10cm | 15cm | |
| Different depth temperature (DEG C) | -20 | -4 | 7 | 10 |
As can be seen from above result of the test; reservoir water delivery tower anti-freeze expansion protective provided by the invention frost heaving amount in the winter time can be stable maintain about 0.2cm; when surface temperature is-20 DEG C simultaneously; the inner 10cm place of protective can reach 7 DEG C; 15cm place can reach 10 DEG C; field trial shows that reservoir water delivery tower frost heave shear failure does not occur in addition, therefore can play anti-frost protection effect well.
Reservoir water delivery tower anti-freeze expansion protective provided by the invention and method to set up simple to operate, cheap, easy to maintenance, can be widely used in hydraulic engineering.
Claims (3)
1. a reservoir water delivery tower anti-freeze expansion protective, is characterized in that, comprises geomembrane (1), polytene heat-insulation plate (2), composite geo-membrane (3), angle steel (4) and steel plate (5); Wherein geomembrane (1) is arranged on water delivery tower external surface, polytene heat-insulation plate (2) is arranged at geomembrane (1) external surface, composite geo-membrane (3) is arranged at polytene heat-insulation plate (2) external surface, angle steel (4) is arranged at the water delivery tower edges and corners in composite geo-membrane (3) outside, and steel plate (5) and angle steel (4) removably connect; Wherein polytene heat-insulation plate (2) thickness is 6cm; Geomembrane (1) is polypropylene geotextile film, is added with the age resister that mass fraction is 3% in polypropylene geotextile film; Composite geo-membrane (3) is made for polypropylene material, is added with the age resister that mass fraction is 3% in polypropylene material;
The method to set up of described reservoir water delivery tower anti-freeze expansion protective, step is as follows:
(1) geomembrane (1) is layed in water delivery tower external surface;
(2) polytene heat-insulation plate (2) is layed in geomembrane (1) outside;
(3) composite geo-membrane (3) is layed in polytene heat-insulation plate (2) outside;
(4) angle steel (4) is separately positioned on the corner angle of composite geo-membrane (3) outside water delivery tower, steel plate (5) is connected with angle steel (4) by bolt, protective endothecium structure is fixed.
2. reservoir water delivery tower anti-freeze expansion protective according to claim 1, is characterized in that, is detachably connected as bolt and connects.
3. the application of reservoir water delivery tower anti-freeze expansion protective in hydraulic engineering described in claim 1 or 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410083864.4A CN103806472B (en) | 2014-03-07 | 2014-03-07 | Frost-and-expansion resistant protection body for water transmission tower of water reservoir, and arranging method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410083864.4A CN103806472B (en) | 2014-03-07 | 2014-03-07 | Frost-and-expansion resistant protection body for water transmission tower of water reservoir, and arranging method thereof |
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| Publication Number | Publication Date |
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| CN103806472A CN103806472A (en) | 2014-05-21 |
| CN103806472B true CN103806472B (en) | 2015-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410083864.4A Active CN103806472B (en) | 2014-03-07 | 2014-03-07 | Frost-and-expansion resistant protection body for water transmission tower of water reservoir, and arranging method thereof |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107905179A (en) * | 2017-11-22 | 2018-04-13 | 水利部交通运输部国家能源局南京水利科学研究院 | A kind of cold area's earth and rockfill dam anti-freeze expansion structure and its construction method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201033870Y (en) * | 2007-02-15 | 2008-03-12 | 中国水利水电科学研究院 | Hydraulic concrete dam insulation seepage control clad plate |
| CN203174784U (en) * | 2013-04-22 | 2013-09-04 | 王静 | Novel thermal insulation material |
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2014
- 2014-03-07 CN CN201410083864.4A patent/CN103806472B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201033870Y (en) * | 2007-02-15 | 2008-03-12 | 中国水利水电科学研究院 | Hydraulic concrete dam insulation seepage control clad plate |
| CN203174784U (en) * | 2013-04-22 | 2013-09-04 | 王静 | Novel thermal insulation material |
Non-Patent Citations (1)
| Title |
|---|
| 人工湖土工膜防渗工程的设计与施工;李迎春;《防渗技术》;20000930;第6卷(第3期);33-36 * |
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