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Method for assembling rubber dam in slope-shaped river channel

A rubber dam, slope type technology, applied in the field of rubber dam installation, can solve the problems of uneven force on the dam bag, unsightly dam shape, affecting visual effects, etc., and achieves reduced stress concentration, high compressive strength, and consumption saving. Effect

Inactive Publication Date: 2010-12-15
JIANGSU YANGZHOU HELI RUBBER PROD
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Rubber dams have been used in China for more than 40 years. Rubber dams can be divided into pillow type (also called plug type or non-end wall anchor type) and slope type (also called inclined wall type) from the structural type of the dam bag and the bottom plate. type or end-wall anchoring type), where the traditional slope rubber dam is arranged in the form of anchoring lines in the slope section: the vertical projection of the downstream anchoring line is distributed in a straight line with the horizontal section of the bottom plate, and the upstream anchoring line is inflated to the design height of the dam bag at The 45° tangent line projected horizontally on the slope surface and the extension and connection of the anchor line of the horizontal section of the floor. The main disadvantage of this structure is that after the existing dam bag 9 is filled with water, it corresponds to the top of the dam bag at the connection between the flat bottom surface of the river channel and the slope. There is a deep top surface fold 10, such as Figure 5 , 6 As shown, when the water level in the upstream of the dam is high and close to the design height, there will be some water leakage at the top surface crease 10 to varying degrees, so that the rubber dam cannot really achieve the purpose of the design water storage level, and the actual interception water level line 11 is far lower than the design interception water level
In addition, in the traditional anchor line structure, the horizontal section of the bottom plate extends longer on the slope surface, the force on the dam pocket is uneven, and the dam shape is not beautiful. In addition, the horizontal horizontal anchor length at the top is longer, which also affects the visual effect

Method used

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Examples

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Embodiment 1

[0024] It is used in the construction of water storage and power generation. The width of the river is 90 meters; the width between the slope lines 5 is 70 meters, and the design interception water level is 5 meters. Such as Figure 1-4 shown.

[0025] 1), set up the upper and lower anchor grooves and the top anchor groove 4; at the bottom of the river 3 (river bottom 6), set up the upper and lower anchor grooves cross-cutting the river 3 at an interval of 11m; wherein the upstream anchor groove 8 exceeds the slope line of the river After 0.5m from the slope line 5, it turns to the downstream direction, and the turning angle is 40° (keep the depth of the groove unchanged on the slope); the downstream anchor groove 7 turns to the downstream direction after exceeding 0.5m from the river slope line 5, and the turning angle is less than The turning angle of the upstream anchoring groove 7 (keep the depth of the groove unchanged on the slope) ensures that the two grooves leave a ...

Embodiment 2

[0032] Applied to large-scale agricultural irrigation water storage occasions. The width of the river is 12 meters; the width between the slope lines 5 is 9 meters, and the design interception water level is 1.5 meters. Such as Figure 1-4 shown.

[0033] 1), set up the upper and lower anchor grooves and the top anchor groove 4; at the bottom of the river 3 (river bottom 6), set up the upper and lower anchor grooves that cross the river 3 at an interval of 2.1m; wherein the upstream anchor groove 8 exceeds the slope of the river After 0.4m of the line 5, it turns downstream, and the turning angle is 50° (keep the depth of the groove unchanged on the slope); the downstream anchor groove 7 turns downstream after 0.4m beyond the river slope line 5, and the turning angle It is smaller than the turning angle of the upstream anchor groove 7 (keep the depth of the groove unchanged on the slope), and ensure that the two grooves leave a horizontal top anchor with a length of 1m on th...

Embodiment 3

[0040] Applied to urban beautification and water storage occasions. The width of the river is 120 meters; the width between the slope lines 5 is 100 meters, and the design interception water level is 4.0 meters. Such as Figure 1-4 shown.

[0041] 1), set up the upper and lower anchor grooves and the top anchor groove 4; at the bottom of the river 3 (river bottom 6), set up the upper and lower anchor grooves that cross the river 3 at an interval of 7.5m; where the upstream anchor groove 8 exceeds the river slope After 0.4m of the line 5, it turns downstream, and the turning angle is 45° (keep the depth of the groove unchanged on the slope); the downstream anchor groove 7 turns downstream after 0.4m beyond the river slope line 5, and the turning angle It is smaller than the turning angle of the upstream anchor groove 7 (keep the depth of the groove unchanged on the slope), and ensure that the two grooves leave a horizontal top with a length of 1.5m on the upper edge of the ri...

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Abstract

The invention relates to a method for assembling a rubber dam in a slope-shaped river channel. The method solves the long-existing problem of water leaking at the design height of the conventional slope-shaped rubber dam at present, improves unreasonable stress of dam bags and improves appearance of dam shapes. The method comprises the following steps of: 1) opening an upstream anchoring tank, a downstream anchoring tank and a top anchoring tank; 2) installing the bag edges of a downstream dam of the dam bag of the rubber dam; 3) installing the bag edges of an upstream dam of the dam bag of the rubber dam; 4) sealing both ends of the dam bag of the rubber dam, flatly overlaying ports on both ends of the dam bag, and placing the ports into the top anchoring tank; and 5) injecting water to the dam bag of the rubber dam from a water injection port to install the rubber dam. The method changes the structural form in the river channel after the rubber dam is installed, the slope part of the dam bag of the rubber dam extends downstream, cockles are formed at the positions of the horizontal section of the dam bottom and the slope section after the dam bag is aerated, and the cockles exist in downstream instead of the top of the dam bag in the conventional structure (the cockles are formed in the vertical direction).

Description

technical field [0001] The invention relates to a method for installing a rubber dam, in particular to a method for installing a rubber dam in a slope-shaped river course. Background technique [0002] Rubber dams have been used in China for more than 40 years. Rubber dams can be divided into pillow type (also called plug type or non-end wall anchor type) and slope type (also called inclined wall type) from the structural type of the dam bag and the bottom plate. type or end-wall anchoring type), where the traditional slope rubber dam is arranged in the form of anchoring lines in the slope section: the vertical projection of the downstream anchoring line is distributed in a straight line with the horizontal section of the bottom plate, and the upstream anchoring line is inflated to the design height of the dam bag at The 45° tangent line projected horizontally on the slope surface and the extension and connection of the anchor line of the horizontal section of the floor. The...

Claims

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Application Information

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IPC IPC(8): E02B3/10E02B3/12
Inventor 宋继良陈祝锦陈理想高俊郭华王峰
Owner JIANGSU YANGZHOU HELI RUBBER PROD
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