Dust suppression method of slope excavation

A technology for reducing dust and slopes, applied in cleaning methods, road surface cleaning, construction, etc., can solve problems such as limited effects and no better control methods, and achieve the effects of improving construction efficiency, good dust reduction effects, and reducing investment

Inactive Publication Date: 2019-05-07
CHINA HYDROPOWER ELEVENTH ENG BUREAU ZHENGZHOU CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, in the field of engineering construction, wet dust suppression methods such as pressurized water bags, pipeline sprinkling, and high-pressure spray are usually used. The project is

Method used

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  • Dust suppression method of slope excavation

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Example Embodiment

[0021] Example 1

[0022] Such as figure 1 As shown, the specific implementation and application of the present invention in the construction of a certain hydropower station, the abutment span on both banks of the hydropower station construction is 450m~520m, the excavation height of the side slope is about 239m, the slope is 45°~69°, and the slope excavation The later gravel cannot be shipped directly. A large amount of gravel needs to be thrown from the working surface to the slag trap set on the riverbed slope, and then the second shipment is carried out. The excavation length of each level of horse track is 150m, and the excavation area is large. If the traditional dust reduction method is adopted, the number of personnel and equipment required will be very large, and the economic cost will increase.

[0023] The specific steps are as follows:

[0024] Step 1. Weld the 14mm thick steel plate into a cube water tank with a side length of 3m, which is a high-level water tank. Prep...

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Abstract

The invention relates to a dust suppression method of slope excavation. The dust suppression method of slope excavation comprises the following steps of step 1, arranging a high water level reservoirwith height of 250 m from the ground near dam abutments on the two banks; step 2, arranging a centrifugal water pump on the high water level reservoir and connecting the centrifugal water pump with awater source through a pipeline; step 3, placing a plurality of steel wire ropes above an excavation area between the dam abutments on the two banks; and step 4, connecting a plurality of spraying water pipes with a water tank, connecting the water tank with the high water level reservoir, fixedly connecting each spraying water pipe with each steel wire rope, placing each spraying water pipe abovethe excavation area, laying a plurality of rotating nozzles, shower heads, valves and the like on each spraying water pipe. The dust suppression method of slope excavation has the superior effects that the operation of a dust suppression technology can obtain a good dust suppression effect, the construction environment is greatly improved so that a site construction personnel obtain a good working environment, and the occupational health of the construction personnel is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of dust suppression, and in particular relates to a dust suppression method for slope excavation. Background technique [0002] Large-scale hydropower projects are generally located in high mountains. The terrain on both sides of the dam site is steep, forming a narrow "V"-shaped valley. During the excavation construction of the high and steep slope of the dam abutment, dust is likely to be generated during drilling, blasting, and slag discharge, especially during the blasting process. Rolling down from top to bottom, a large amount of dust is formed when it collides with the slope along the way. Under the action of wind, it drifts along the river valley, forming a large area of ​​dust pollution, which seriously affects the health of construction workers on the working surface and reduces the ambient air quality in the construction area. In addition, due to the narrow construction site of the excavated side...

Claims

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Application Information

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IPC IPC(8): E01H3/04
Inventor 潘新波王金伟刘小林成永周曹吉龙岳伟黄梦林王红博苏亚雄
Owner CHINA HYDROPOWER ELEVENTH ENG BUREAU ZHENGZHOU CO LTD
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