In Korea, a lot of construction work on undergrounding occurs during construction work. In particular, in the case of underground construction, blasting processes, such as soft rock and hard rock, are essential depending on the ground conditions. Due to the recent expansion of SOC facilities in urban areas, most of the construction in urban areas is carried out. In the case of urban construction, construction may be stopped due to problems such as civil complaints due to noise vibration, or construction delays and cancellations may occur due to construction licensing problems. The blasting method mainly used in Korea is reviewed in terms of safety, construction feasibility, and economy with three main focuses. Existing domestic non-vibration vibration excavation methods include micro-vibration mechanical rock method, rock crushing method using chemical products, and non-vibration blasting method using certain explosives. Specifically applied control blasting methods include line drilling method, frustrating, smooth blasting, and cushion blasting method. The advantages and disadvantages of each method will be mentioned separately, but difficulties may arise due to various conditions such as excessive expenditure of construction cost, failure in crushing of blasting rocks, lack of safety, low construction performance, and defective conditions due to construction problems. By reviewing the problems and advantages and disadvantages of the existing blasting method, we intend to develop an optimized method tailored to the site and apply it to the site by improving individual blasting methods according to ground conditions that meet the field conditions. In this paper, we will review the data on the existing construction method and mention the direction of improvement. As a result of the review, it is intended to improve the existing construction method and use it as basic data for the development of new construction methods with excellent field efficiency and efficiency. We will review the suitability of the open-cut blasting standards proposed by the government and promote the development of a practically applicable construction method. The main focus in the construction of rock blasting methods in urban areas is the installation of blasting chemical install holes, the construction properties of grounder holes, and tensile cracks. It is necessary to develop applicable technologies for sites that are difficult to construct, such as the attenuation effect on control blasting, the increase in the amount of crushing, and securing construction properties for areas that are difficult to blow due to the use of chemical materials. In the construction of blasting methods, we will investigate on the construction methods on minimizing damage to adjacent buildings, the aspect of use of existing temporary facilities, and measures to minimize civil complaints, and develop high-tech construction methods for urban areas in Korea and suggest development directions.

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A Basic Study on the Analysis of the Current Status and Improvement Direction of Rock Blast in Construction Site

  • Yong Baek,
  • Byoung Ho Jeong,
  • Young Pan Ha,
  • Jin Hwan Kim

摘要

In Korea, a lot of construction work on undergrounding occurs during construction work. In particular, in the case of underground construction, blasting processes, such as soft rock and hard rock, are essential depending on the ground conditions. Due to the recent expansion of SOC facilities in urban areas, most of the construction in urban areas is carried out. In the case of urban construction, construction may be stopped due to problems such as civil complaints due to noise vibration, or construction delays and cancellations may occur due to construction licensing problems. The blasting method mainly used in Korea is reviewed in terms of safety, construction feasibility, and economy with three main focuses. Existing domestic non-vibration vibration excavation methods include micro-vibration mechanical rock method, rock crushing method using chemical products, and non-vibration blasting method using certain explosives. Specifically applied control blasting methods include line drilling method, frustrating, smooth blasting, and cushion blasting method. The advantages and disadvantages of each method will be mentioned separately, but difficulties may arise due to various conditions such as excessive expenditure of construction cost, failure in crushing of blasting rocks, lack of safety, low construction performance, and defective conditions due to construction problems. By reviewing the problems and advantages and disadvantages of the existing blasting method, we intend to develop an optimized method tailored to the site and apply it to the site by improving individual blasting methods according to ground conditions that meet the field conditions. In this paper, we will review the data on the existing construction method and mention the direction of improvement. As a result of the review, it is intended to improve the existing construction method and use it as basic data for the development of new construction methods with excellent field efficiency and efficiency. We will review the suitability of the open-cut blasting standards proposed by the government and promote the development of a practically applicable construction method. The main focus in the construction of rock blasting methods in urban areas is the installation of blasting chemical install holes, the construction properties of grounder holes, and tensile cracks. It is necessary to develop applicable technologies for sites that are difficult to construct, such as the attenuation effect on control blasting, the increase in the amount of crushing, and securing construction properties for areas that are difficult to blow due to the use of chemical materials. In the construction of blasting methods, we will investigate on the construction methods on minimizing damage to adjacent buildings, the aspect of use of existing temporary facilities, and measures to minimize civil complaints, and develop high-tech construction methods for urban areas in Korea and suggest development directions.