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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AI-Extracted 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 wa...

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).

Application Domain

DamsDykes

Technology Topic

Geotechnical engineeringStructural engineering +3

Image

Examples

Experimental program(3)

Example Embodiment

[0023] Example one

[0024] Used in water storage and power generation construction occasions. The width of the river is 90 meters; the width between the rise lines 5 is 70 meters, and the designed interception water level is 5 meters high. Such as Figure 1-4 Shown.

[0025] 1) Set up upstream and downstream anchoring grooves and top anchoring grooves 4; at the bottom of the river 3 (river bottom 6), open up and downstream anchoring grooves that cross the river 3 at an interval of 11m; among them, the upstream anchoring groove 8 exceeds the rise line of the river After 0.5m of 5, turn to the downstream direction with a turning angle of 40° (keep the depth of the groove constant on the slope); the downstream anchoring groove 7 turns to the downstream direction after 0.5m of the river rise line 5, and the turning angle is less than The turning angle of the upstream anchoring groove 7 (keep the depth of the groove constant on the slope), ensure that the two grooves are left horizontally and 1.8m in length on the upper edge of the river 3 (0.5-0.6 meters above the designed interception level) Groove 4; the upstream and downstream anchoring grooves include the groove section of the river bottom 6 and the groove section on the slope. The upper end of the groove section on the slope is connected to the top anchor groove 4

[0026] 2) Install the bag side of the downstream dam of the rubber dam bag 1; place the inner glue of the dam bag 1 upwards, and align the bag side of the downstream dam of the dam bag 1 with the downstream anchor groove 7, and cut the excess part until it is with the downstream anchor groove 7 are consistent, anchor the downstream dam pocket and seal the anchor.

[0027] 3) Install the rubber dam bag 1 on the upstream dam pocket; turn up the dam bag 1 that has been fixed on the downstream dam pocket, and turn the dam bag 1 upstream. After leaving the dam pocket for water injection, align the other side with the upstream anchor groove 8. The surplus part is cut until it fits with the upstream anchoring groove 8 to anchor the upstream dam pocket and seal the anchor.

[0028] 4) Seal both ends of the rubber dam bag 1. Lay the ports on both sides of the dam bag 1 flat and place them into the top anchor groove 4; first fix the edge of the upstream port, and then apply tension from the downstream port edge to tighten the port , The excess amount of the port in the downstream direction is generated towards the downstream direction, and the anchor is sealed. The intersection point of the downstream anchor groove 7 and the top anchor groove 4 is the collapse point 40, and the top anchor groove 4 extends 0.4 m in the downstream direction along the collapse point 40 to accommodate the excess amount.

[0029] 5). It is made by injecting water into the rubber dam bag through a water injection nozzle.

[0030] Finally, when the dam bag is in normal operation, due to its own shape and the thrust of the upstream water, the wrinkles 2 formed at the position of the rise line 5 are concentrated on the downstream side, and the top has no wrinkles, which can effectively increase the actual interception water level.

Example Embodiment

[0031] Example two

[0032] It is applied to larger agricultural irrigation and water storage occasions. The width of the river is 12 meters; the width between the rise line 5 is 9 meters, and the designed interception water level is 1.5 meters. Such as Figure 1-4 Shown.

[0033] 1) Open up and down anchor grooves and top anchor grooves 4; at the bottom of the river 3 (river bottom 6), open up and down anchor grooves across the river 3 at an interval of 2.1m; the upstream anchor groove 8 rises above the river After 0.4m of line 5, turn to the downstream direction with a turning angle of 50° (keep the depth of the groove constant on the slope); the downstream anchoring groove 7 turns to the downstream direction after 0.4m of the river rise line 5, turning angle Less than the turning angle of the upstream anchoring groove 7 (keep the depth of the groove constant on the slope) to ensure that the two grooves have a horizontal, 1m top anchor on the upper edge of the river 3 (0.2-0.3 meters above the designed interception level) Groove 4; the upstream and downstream anchoring grooves include the groove section of the river bottom 6 and the groove section on the slope. The upper end of the groove section on the slope is connected to the top anchor groove 4

[0034] 2) Install the bag side of the downstream dam of the rubber dam bag 1; place the inner glue of the dam bag 1 upwards, and align the bag side of the downstream dam of the dam bag 1 with the downstream anchor groove 7, and cut the excess part until it is with the downstream anchor groove 7 are consistent, anchor the downstream dam pocket and seal the anchor.

[0035] 3) Install the rubber dam bag 1 on the upstream dam pocket; turn up the dam bag 1 that has been fixed on the downstream dam pocket, and turn the dam bag 1 upstream. After leaving the dam pocket for water injection, align the other side with the upstream anchor groove 8. The surplus part is cut until it fits with the upstream anchoring groove 8 to anchor the upstream dam pocket and seal the anchor.

[0036] 4) Seal both ends of the rubber dam bag 1. Lay the ports on both sides of the dam bag 1 flat and place them into the top anchor groove 4; first fix the edge of the upstream port, and then apply tension from the downstream port edge to tighten the port , The excess amount of the port in the downstream direction is generated towards the downstream direction, and the anchor is sealed. The intersection point of the downstream anchor groove 7 and the top anchor groove 4 is the collapse point 40, and the top anchor groove 4 extends 0.2 m in the downstream direction along the collapse point 40 to accommodate the excess amount.

[0037] 5). It is made by injecting water into the rubber dam bag through a water injection nozzle.

[0038] Finally, when the dam bag is in normal operation, due to its own shape and the thrust of the upstream water, the wrinkles 2 formed at the position of the rise line 5 are concentrated on the downstream side, and the top has no wrinkles, which can effectively increase the actual interception water level.

Example Embodiment

[0039] Example three

[0040] Used in urban beautification and water storage occasions. The width of the river is 120 meters; the width between the rise line 5 is 100 meters, and the designed interception water level is 4.0 meters high. Such as Figure 1-4 Shown.

[0041] 1) Open up and down anchor grooves and top anchor grooves 4; at the bottom of the river 3 (river bottom 6), open up and down anchor grooves across the river 3 at an interval of 7.5m; the upstream anchor groove 8 rises above the river After 0.4m of line 5, turn to the downstream direction with a turning angle of 45° (keep the depth of the groove constant on the slope); the downstream anchoring groove 7 turns to the downstream direction after 0.4m of the river rise line 5, turning angle Less than the turning angle of the upstream anchoring groove 7 (keep the depth of the groove constant on the slope), and ensure that the two grooves have a horizontal top edge of 1.5m on the upper edge of the river 3 (0.5-0.8 meters above the designed interception level) Anchor groove 4; the upstream and downstream anchor grooves include the groove section of the river bottom 6 and the groove section on the slope. The upper end of the groove section on the slope is connected to the top anchor groove 4

[0042] 2) Install the bag side of the downstream dam of the rubber dam bag 1; place the inner glue of the dam bag 1 upwards, and align the bag side of the downstream dam of the dam bag 1 with the downstream anchor groove 7, and cut the excess part until it is with the downstream anchor groove 7 are consistent, anchor the downstream dam pocket and seal the anchor.

[0043] 3) Install the rubber dam bag 1 on the upstream dam pocket; flip the dam bag 1 that has been fixed on the downstream dam pocket upstream, and leave the dam pocket for water injection space, and align the other side with the upstream anchor groove 8. The surplus part is cut until it fits with the upstream anchoring groove 8 to anchor the upstream dam pocket and seal the anchor.

[0044] 4) Seal both ends of the rubber dam bag 1. Lay the ports on both sides of the dam bag 1 flat and place them into the top anchor groove 4; first fix the edge of the upstream port, and then apply tension from the downstream port edge to tighten the port , The excess amount of the port in the downstream direction is generated toward the downstream direction, and the anchor is sealed. The intersection point of the downstream anchor groove 7 and the top anchor groove 4 is the collapse point 40, and the top anchor groove 4 extends 0.3 m in the downstream direction along the collapse point 40 to accommodate the excess amount.

[0045] 5). It is made by injecting water into the rubber dam bag through a water injection nozzle.

[0046] Finally, when the dam bag is in normal operation, due to its own shape and the thrust of the upstream water, the wrinkles 2 formed at the position of the rise line 5 are concentrated on the downstream side, and the top has no wrinkles, which can effectively increase the actual interception water level.

PUM

Property	Measurement	Unit
Turning angle	40.0 ~ 50.0	deg

Description & Claims & Application Information

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Classification and recommendation of technical efficacy words

reduce stress concentration

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

AI-Extracted Technical Summary

Problems solved by technology

Abstract

Image

Examples

Example Embodiment

Example Embodiment

Example Embodiment

PUM

Description & Claims & Application Information

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