CN103898874B - Concrete face rockfill dam face plate supporting and pressing type caulking machine - Google Patents
Concrete face rockfill dam face plate supporting and pressing type caulking machine Download PDFInfo
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- CN103898874B CN103898874B CN201410147122.3A CN201410147122A CN103898874B CN 103898874 B CN103898874 B CN 103898874B CN 201410147122 A CN201410147122 A CN 201410147122A CN 103898874 B CN103898874 B CN 103898874B
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Abstract
The invention provides a supporting and pressing type caulking machine for the caulking construction of a concrete face rockfill dam face joint, which is used for a concrete face rockfill dam and is characterized by comprising a machine body, wherein the machine body is provided with a supporting and pressing device, the supporting and pressing device is provided with a supporting piece for supporting the middle part of a cover plate and a pressing piece for pressing the two sides of the cover plate. The two sides of the pressing piece are provided with rollers. The heights of the rollers on the two sides of the pressing piece can be respectively adjusted. The number of the rollers on each side of the pressing piece is not less than 2. At least 2 rollers in the rollers on the same side of the pressing piece have adjustable relative heights. The support members can be adjusted and/or replaced according to the cross-sectional shape of the caulking material to be caulked. The distance between the rollers on the two sides of the pressing piece is adjustable. The body has a hoop member that hoops an upper surface of the cover plate. The hoop of the machine body is provided with not less than 2 rollers. At least 2 rollers of the machine body hoop member have adjustable relative heights. The invention can solve the problems of low compaction efficiency and poor quality of the conventional manual caulking construction method.
Description
Technical Field
the invention relates to construction machinery, in particular to a supporting and pressing type caulking machine for caulking construction of joint caulking materials of concrete face rockfill dam panels.
Background
The concrete face rockfill dam is a dam body form widely adopted in hydropower station construction at home and abroad, and has become a main preferred or first-choice dam type in China. In the next 10 years, with the technical progress, China can promote the construction of more concrete faced rock-fill dams.
The concrete face rockfill dam takes the rockfill as a main stress structure to bear the reservoir water pressure, and takes a reinforced concrete face slab poured from bottom to top on the upstream face of the rockfill as an anti-seepage structure. Because factors such as dam body settlement and deformation are considered, concrete panels need to be poured in blocks, dozens of seams are formed among the panel blocks, toe boards and panel blocks which are connected with peripheral mountains into a whole, if leakage occurs in the seams, small particles in rockfill can be taken away by seepage flow, a gradually enlarged seepage flow channel is formed, and finally the stability of the whole dam body is influenced, so that the dam is one of the main causes of serious seepage accidents of the plant-tree bridge panel dam in Hunan province and the dam collapse accidents of the panel dam behind the Qinghai ditch. Therefore, the water stopping of the panel joint is a key link for preventing seepage of the dam.
In the existing waterproof measures for the surface layer of the panel joint of the face rockfill dam at home and abroad, a nearly semicircular flexible caulking material is embedded in a reserved V-shaped groove, and a rubber cover plate is arranged outside the caulking material to protect the caulking material; the rubber cover plate and the concrete surface at the two sides of the caulking material are anchored by flat steel pressing strips and bolts penetrating through preformed holes on the flat steel. The caulking material has the effect that when the dam body is greatly settled and deformed, the caulking material can flow into the seam cavity to block the leakage channel under the action of water pressure, so that the overall safety and reliability of seam water stopping are enhanced, and the safety and reliability of the dam body are further enhanced.
Because of the action mechanism of the caulking material, the caulking material is limited to be well adhered to the concrete surface of the V-shaped groove and tightly caulked, and only can flow into the seam cavity under the action of water pressure, so that the caulking material is tightly caulked and the adhering surface is tight and firm, and is the key of surface water stop construction. Meanwhile, when the joint of the concrete panel is opened, only the cover plate is tightly bonded with the lower caulking material, the rubber cover plate with the hardness higher than that of the caulking material can better transmit water pressure to the caulking material, so that more caulking materials are pressed into the joint cavity to block the leakage channel, and the cover plate is tightly bonded with the lower caulking material and is also the key of water stop structure construction.
At present, the common practice of the compaction process of caulking materials filled in the seam notches of concrete panels at home and abroad is as follows: the caulking material is compacted into the shape of the section required by the design by manual hand pressing, foot stepping or tamping with a wooden pile, then the protective cover plate is covered, and finally the protective cover plate and the caulking material are tightly bonded by manual hand pressing, foot stepping or knocking with a rubber hammer. The caulking materials sold in markets at home and abroad have viscosity and certain elastoplasticity and are constructed on the steep slope surface of the dam, so that the manual compaction force is insufficient, and the compaction difficulty is very high. Therefore, manual caulking material compaction is inefficient and the quality of compaction is not very desirable.
In summary, the invention provides a supporting and pressing type caulking machine for caulking materials of joints of concrete face rockfill dam panels in order to solve the problems of low compacting efficiency and poor quality of the conventional manual caulking method.
Disclosure of Invention
The invention provides a supporting and pressing type caulking machine for the caulking construction of a concrete face rockfill dam face joint, which is used for a concrete face rockfill dam and is characterized by comprising a machine body, wherein the machine body is provided with a supporting and pressing device, the supporting and pressing device is provided with a supporting piece for supporting the middle part of a cover plate and a pressing piece for pressing the two sides of the cover plate. The two sides of the pressing piece are provided with rollers. The heights of the rollers on the two sides of the pressing piece can be respectively adjusted. The number of the rollers on each side of the pressing piece is not less than 2. At least 2 rollers in the rollers on the same side of the pressing piece have adjustable relative heights. The support members can be adjusted and/or replaced according to the cross-sectional shape of the caulking material to be caulked. The distance between the rollers on the two sides of the pressing piece is adjustable. The body has a hoop member that hoops an upper surface of the cover plate. The hoop of the machine body is provided with not less than 2 rollers. At least 2 rollers of the machine body hoop member have adjustable relative heights. The support member also has a roller.
The invention has the following specific advantages:
1. The small wheels on the pressing pieces press the two sides of the cover plate, and the supporting pieces support the middle part of the cover plate, so that a cavity is formed between the cover plate and the concrete panel along the seam surface; the flexible filler for caulking is injected into the cavity in a mechanical mode, and the cover plate is expanded into a required convex cambered surface under the action of the filling pressure of the flexible filler in the cover plate, so that the caulking material in the cavity is tightly filled, the caulking material is firmly adhered to the surface of concrete, and the construction quality is obviously improved.
2. In the construction process, the small wheels on the pressing piece can roll continuously, so that the machine is in a continuous advancing mode, and the construction efficiency is obviously improved.
3. In the invention, the caulking material is directly injected and molded by the machine, manual tamping of the caulking material into a designed section shape is replaced, and the molding is regular and beautiful.
4. There is typically a height difference of within 20mm between the concrete panels on either side of the seam face. According to the invention, the heights of the rollers at two sides of the pressing piece can be respectively adjusted, so that no gap is formed between the cover plate below the small wheel and the concrete surface, and the flexible filler is prevented from emerging from the gap.
5. Large volume poured concrete panel surfaces typically have a height difference within 10 mm. In the invention, the number of the rollers on each side of the pressing piece is not less than 2, and the relative height between at least 2 rollers in the rollers on the same side can be adjusted, so that no gap is formed between a cover plate below the small wheel and the surface of concrete, and the flexible filler is prevented from emerging from the gap.
6. The section shapes and section areas of the caulking materials with different caulking surfaces are different, the supporting piece can be adjusted and/or replaced according to the section shape of the caulking material to be caulked, the distance between the rollers on the two sides of the pressing piece is adjustable, and the applicability of the device can be improved.
7. The cover plate swells into a required convex arc surface under the action of the filling pressure of the flexible filler in the cover plate, and the hoop piece is arranged on the upper surface of the convex cover plate to play a role of hoop tightening, so that the convex arc surface is prevented from being deformed too much. Among the gyro wheel of organism hoop, the relative altitude adjustable between 2 gyro wheels at least can improve equipment to the suitability of different seam faces.
8. The supporting piece and the hoop piece are provided with rollers and can be matched with a machine in a continuous advancing mode, so that the construction efficiency is improved.
The invention has the following important significance:
The design of the invention strives for simple method and simple process, thereby achieving the effects of simple operation, high efficiency and high quality in actual construction. As described in the background art, the concrete faced rockfill dam is as high as several tens of meters to several hundreds of meters, and the safety and stability of the dam are related to the countryside citizen, while the construction quality of the surface water stop structure as a key link of the anti-seepage system is related to the safety and stability of the dam. The low efficiency and low quality of caulking materials are difficult problems which trouble engineering technicians, and if the invention can be popularized and used, the invention can partially solve the problems and can promote the technical progress and innovation in the dam industry field of China.
Drawings
Fig. 1 is a schematic view of a supporting and pressing device.
FIG. 2 is a schematic view of a push-button caulking machine.
FIG. 3 is a schematic view of the construction of the push-push caulking machine.
Detailed Description
The supporting device is shown in figure 1, two sides of a cover plate 4 are pressed by small wheels 1 on a supporting piece of the supporting device, and the middle part of the cover plate 4 is supported by small wheels 2 on a supporting piece of the supporting device, so that a cavity is formed between the cover plate 4 and a concrete surface 6 along a seam surface; the flexible filler for caulking is pressed into the cavity through the injector 5 in a mechanical mode, and the cover plate 4 is expanded into a required convex cambered surface under the filling pressure of the flexible filler in the cavity, so that the caulking material in the cavity is tightly caulked; the small wheel 3 on the supporting and pressing device hoop piece hoops the upper surface of the cover plate to prevent the convex cambered surface from deforming too much. The cover plate 4 is usually a rubber plate or a plastic plate, if the cover plate needs to be reused, a release agent can be coated on the lower surface of the cover plate, and after tens of meters of release agent are made, the cover plate is rolled up and then used for the construction of the next section of seam surface.
The structure of the push-press caulking machine is shown in figure 2, the caulking machine is provided with a traveling wheel 10, the traveling wheel is dragged to travel on the dam surface through a traction hook 9, and the traveling direction is adjusted by a steering wheel 8. The rubber protective cover plate 4 is fixed on the cover plate reel 7, and the cover plate 4 on the cover plate reel 7 is released along with the advance of the caulking machine; when the cover plate 4 approaches the supporting and pressing device, the middle part is gradually supported, and the two sides are gradually pressed firmly to form the omega-shaped cover plate 4 with the design requirement.
The construction process of the supporting and pressing caulking machine is shown in figure 3, a winch 12 is installed on a dam crest 11 of a dam, and the winch 12 pulls the caulking machine to move along a dam face 14 of the dam from bottom to top through a steel wire rope 13.
Claims (7)
1. A supporting and pressing type caulking machine for the caulking construction of a concrete panel rock-fill dam panel joint is characterized by comprising a machine body, wherein the machine body is provided with a supporting and pressing device, a flexible filler injector, a traveling wheel and a winch, the supporting and pressing device is provided with a supporting piece for supporting the middle part of a cover plate, a pressing piece for pressing two sides of the cover plate and a hoop piece for hooping the upper surface of the cover plate, rollers are arranged on two sides of the pressing piece, the supporting and pressing device enables a cavity to be formed between the cover plate and the concrete surface along the seam surface, the flexible filler injector can press flexible filler into the cavity, and the traveling wheel and the winch can enable the machine body to pull to travel on the dam surface along the seam surface.
2. The press-supporting caulking machine for the joint caulking construction of the concrete face rockfill dam face slab according to claim 1, which is characterized in that: the heights of the rollers on the two sides of the pressing piece can be respectively adjusted.
3. The press-supporting caulking machine for the joint caulking construction of the concrete face rockfill dam face slab according to claim 1, which is characterized in that: the number of the rollers on each side of the pressing piece is not less than 2.
4. The press-supporting caulking machine for the joint caulking construction of the concrete face rockfill dam face slab according to claim 1, which is characterized in that: at least 2 rollers in the rollers on the same side of the pressing piece have adjustable relative heights.
5. The press-supporting caulking machine for the joint caulking construction of the concrete face rockfill dam face slab according to claim 1, which is characterized in that: the distance between the rollers on the two sides of the pressing piece is adjustable.
6. The press-supporting caulking machine for the joint caulking construction of the concrete face rockfill dam face slab according to claim 1, which is characterized in that: the hoop member has not less than 2 rollers.
7. The press-supporting caulking machine for the joint caulking construction of the concrete face rockfill dam face slab according to claim 1, which is characterized in that: at least 2 rollers of the hoop member have adjustable relative heights.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410147122.3A CN103898874B (en) | 2014-04-11 | 2014-04-11 | Concrete face rockfill dam face plate supporting and pressing type caulking machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410147122.3A CN103898874B (en) | 2014-04-11 | 2014-04-11 | Concrete face rockfill dam face plate supporting and pressing type caulking machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103898874A CN103898874A (en) | 2014-07-02 |
| CN103898874B true CN103898874B (en) | 2019-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410147122.3A Active CN103898874B (en) | 2014-04-11 | 2014-04-11 | Concrete face rockfill dam face plate supporting and pressing type caulking machine |
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| Country | Link |
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| CN (1) | CN103898874B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111021211B (en) * | 2019-12-23 | 2021-12-21 | 江苏港通路桥集团有限公司 | Expansion joint lining strip press-in device for pavement construction |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4655638A (en) * | 1986-06-12 | 1987-04-07 | Gelco Grouting Service | Waterstop for monolith joints and method |
| CN1475632A (en) * | 2003-07-01 | 2004-02-18 | 北京中水科海利工程技术有限公司 | Construction method of slit joining water stopping structure and its equipment |
| CN103556603A (en) * | 2013-11-11 | 2014-02-05 | 葛洲坝集团第一工程有限公司 | Plastic sealing construction trolley for concrete faced rockfill dam and construction method |
| CN204080744U (en) * | 2014-04-11 | 2015-01-07 | 朱博程 | Face Slab of Concrete-faced Rockfill support is by formula caulking machine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101240528A (en) * | 2008-01-13 | 2008-08-13 | 张明军 | Compacting method of flexible filling material for pointing concrete panel joint |
| CN102808393B (en) * | 2012-08-17 | 2016-05-18 | 朱博程 | Face Slab of Concrete-faced Rockfill flexible filler former |
-
2014
- 2014-04-11 CN CN201410147122.3A patent/CN103898874B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4655638A (en) * | 1986-06-12 | 1987-04-07 | Gelco Grouting Service | Waterstop for monolith joints and method |
| CN1475632A (en) * | 2003-07-01 | 2004-02-18 | 北京中水科海利工程技术有限公司 | Construction method of slit joining water stopping structure and its equipment |
| CN103556603A (en) * | 2013-11-11 | 2014-02-05 | 葛洲坝集团第一工程有限公司 | Plastic sealing construction trolley for concrete faced rockfill dam and construction method |
| CN204080744U (en) * | 2014-04-11 | 2015-01-07 | 朱博程 | Face Slab of Concrete-faced Rockfill support is by formula caulking machine |
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| CN103898874A (en) | 2014-07-02 |
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Inventor after: Gao Hongzhi Inventor after: Wu Baoge Inventor after: Zhu Bocheng Inventor after: Huang Weiyue Inventor before: Zhu Bocheng Inventor before: Huang Weiyue |
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