A Calculation Method of the Diameter and Optimum Explosive Consumption of Anti-Lying Blasting Pit

A blasting pit and explosive technology, which is applied in the field of engineering calculation to prevent ice disasters, can solve the problems of blind calculation of explosives, reduced work efficiency, hidden dangers, etc., and achieves the effect of saving funds and blasting funds.

Active Publication Date: 2021-03-02
CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to insufficient data collection and systematic research on ice blasting, the calculation of the amount of explosives is relatively blind, and the amount of use varies greatly, which not only reduces work efficiency, but also poses a certain safety hazard.

Method used

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  • A Calculation Method of the Diameter and Optimum Explosive Consumption of Anti-Lying Blasting Pit
  • A Calculation Method of the Diameter and Optimum Explosive Consumption of Anti-Lying Blasting Pit
  • A Calculation Method of the Diameter and Optimum Explosive Consumption of Anti-Lying Blasting Pit

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Embodiment 1

[0039] This embodiment is a method for calculating the diameter of the anti-bombing blasting pit and the optimal amount of explosives. In this embodiment, based on hundreds of groups of ice blasting data measured in the field, the relationship between the diameter of the blasting pit and the amount of single-hole explosive, the depth of water under the ice, and the installation position of the explosive is analyzed, and the relationship between the amount of single-hole explosive and the diameter of the blasting pit is analyzed. On the basis of the above analysis, a calculation method for the optimal single-hole explosive dosage in anti-bombing blasting is proposed. This method can be used to calculate the minimum blasting cost under the same blasting effect. Taking the 5km long river section in Heilongjiang as an example to prove that the method of this embodiment can save about 46% of the blasting cost under the same blasting effect. In terms of blasting effect, field protot...

Embodiment 2

[0095] This embodiment is an improvement of the first embodiment, and is a refinement of the blasting length of the river section in the first embodiment. The blasting length of the river section described in the present embodiment is 3-8km.

[0096] The length of the blasting river section is mainly determined according to the bearing capacity of manpower and material resources. If the blasting river section is too short, the thermal efficiency produced is not obvious enough. It is necessary to increase the density of the blasting river section. accepted. According to many years of actual blasting experiment experience, after analysis, the length of a blasting river section is generally about 5 kilometers, which is a better length choice, and multiple blasting river sections can be selected according to different actual conditions on a river.

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Abstract

The invention relates to a method for calculating the diameter and the optimal explosive dosage of an anti-ice blasting pit. The method comprises the following steps: setting a blasting position; determining a blasting area; determining the unit price of the explosive; optimizing the explosive dosage; calculating the number of blast holes; digging a blast hole; performing blasting. Through many years of blasting experiments, accumulation and a large amount of experimental data, and through analysis and research of the experimental data, an anti-ice blasting pit diameter formula is obtained. Acalculation method of the optimal single-hole explosive dosage is derived through the formula, the explosive dosage is strictly limited through the calculation method, a large amount of blasting fundscan be saved, and blasting potential safety hazards are avoided. The length of a frozen reach of Heilongjiang river and Yellow River in northern China in winter is more than 1000km, and if a traditional anti-ice blasting mode is adopted, the blasting cost is very high due to the fact that the use amount of explosives is too large. By adopting the method provided by the invention, millions of funds can be saved at least, and the benefit of indirectly avoiding ice flood loss can reach more than ten millions of thousands of.

Description

technical field [0001] The invention relates to a method for calculating the diameter of an anti-ice blasting pit and the optimal amount of explosives, which is a hydraulic engineering method for disaster prevention and reduction, and an engineering calculation method for preventing ice disasters. Background technique [0002] After winter, the temperature drops, the water body loses heat, and when the water temperature drops below 0°C, ice flakes will appear in the river channel, and then drift ice will appear. Affected by water flow conditions, topographical conditions, and wind direction, drift ice will accumulate on each other to form an ice sheet. When the water flow velocity is small, the thickness of the ice sheet is mainly controlled by the thickness of a single drift ice, and the drift ice is arranged in sequence to freeze each other, forming a "flat seal"; when the water flow velocity is high or the terrain conditions are suitable, the drift ice swirls or dives int...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20G06Q10/04
CPCG06Q10/04Y02A10/40
Inventor 付辉郭新蕾余弘婧王涛郭永鑫李甲振路锦枝邹德昊潘佳佳胡志鹏
Owner CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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