Rock static blasting is an effective way to solve the problems in stone mining, processing and construction, which has the characteristics of high efficiency, low cost, safety and reliability, and is widely used in construction, transportation, water conservancy and hydropower and other fields. This article will introduce in detail the basic principles, application scenarios, advantages and disadvantages of rock static blasting, and practical cases.
First, the rationale.
Rock static blasting is to make the rock crack through hydraulic expansion, and then use rock drills, expanders and other tools to peel off the rock fragments, so as to achieve the purpose of breaking the rock. The principle of this method is based on the principle of crack propagation of rocks, which makes the rock easy to break when subjected to external forces by forming a large number of microcracks inside the rock.
2. Application scenarios.
Rock static blasting is suitable for rocks of all hardnesses, especially for large rocks, irregularly shaped rocks, and rocks that need to be broken over large areas. In the field of construction, rock static blasting can be used for stone mining, tunnel excavation, foundation pit excavation, etc.;In the field of transportation, it can be used for stone excavation in the construction of highways, railways and bridgesIn the field of water conservancy and hydropower, it can be used for dam construction, reservoir spillway excavation, etc.
3. Advantages and disadvantages.
1.Merit. 1) High efficiency: Rock static blasting has a high crushing efficiency, which can greatly shorten the construction period.
2) Low cost: Compared with traditional blasting methods, rock static blasting has a lower cost and does not require a large number of materials such as explosives and detonators.
3) Safe and reliable: due to the use of non-first-class methods, there is no risk of explosives, safe and reliable.
4) Environmental protection: Rock static blasting will not produce pollution such as dust and noise, and has little impact on the environment.
In short, as a new method of rock crushing, rock static blasting has the advantages of high efficiency, low cost, safety and reliability, and is widely used in construction, transportation, water conservancy and hydropower and other fields. Although there are some shortcomings and limitations, choosing the right technical solution in the right scenario can give full play to its advantages and provide strong support for engineering construction.