Hybrid Rock Splitting Packer Using Water and Rubber Pressure
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Solution Overview
Problem
Traditional rock excavation methods using explosives or rock crushers generate noise and vibrations, causing civil complaints and structural damage, while vibration-free methods are inefficient and restricted by environmental factors, necessitating a low-noise and low-vibration rock splitting solution.
Innovation Solution
A hybrid-type rock splitting packer utilizing water pressure and rubber inflation pressure, which generates pre-cracks in rocks using a water pressure supply control unit and expands these cracks using a crack expansion unit, enhancing contact area and sealing ability by inflating a holder and rubbers with hydraulic or water pressure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional rock excavation using explosives or rock crushers is used, then rock splitting speed is high, but noise and vibration are generated causing civil complaints and structural damage
Solution Approach 1:
The patent replaces traditional mechanical rock crushing systems with a hydraulic water pressure injection system. Water is injected into pre-drilled holes in the rock at high pressure to generate cracks, eliminating the need for explosives or mechanical crushers that produce noise and vibration. This substitution of mechanical systems with a hydraulic system directly resolves the contradiction between high productivity and harmful noise/vibration.
Solution Approach 2:
The patent employs hydraulic principles by injecting water under high pressure into the rock through injection holes. The water pressure generates tensile stresses that propagate cracks through the rock, enabling efficient splitting without mechanical impact. This hydraulic approach achieves rock splitting with minimal noise and vibration while maintaining high productivity.
2Object-generated harmful factors
If vibration-free rock splitting methods are used, then noise and vibration are reduced, but progress speed decreases significantly
Solution Approach 1:
The patent applies preliminary action by first drilling injection holes and pre-cracks in the rock before applying water pressure. This preparation enables the water pressure to efficiently propagate cracks through predetermined paths, significantly accelerating the splitting process. Without this preliminary drilling and crack initiation, water pressure alone would be much less effective, thus resolving the contradiction between low vibration and high productivity.
Solution Approach 2:
The patent changes the physical parameters of water injection by controlling pressure, flow rate, and injection timing. By optimizing these parameters, the system achieves rapid crack propagation through the rock with minimal vibration. The dynamic adjustment of water pressure parameters enables high-speed splitting while maintaining vibration-free operation.
3Reliability
If water pressure is used to generate pre-cracks, then sealing ability is improved, but the complexity of the system increases
Solution Approach 1:
The patent designs the water pressure injection system to serve multiple functions: it creates pre-cracks, expands existing cracks, and provides sealing pressure all through the same hydraulic system. The water pressure serves dual purposes - both as a crack-propagation medium and as a sealing mechanism, reducing the need for separate systems and thereby limiting the increase in overall system complexity.
Solution Approach 2:
The patent uses water as an intermediary substance that transfers energy to the rock. The water pressure acts as a mediator between the hydraulic system and the rock structure, enabling controlled crack propagation and sealing without direct mechanical contact. This intermediary approach simplifies the system by using a fluid rather than complex mechanical sealing components.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Efficiently splits rocks by generating and expanding cracks, improving sealing and contact area with the rock, thereby reducing noise and vibration during excavation while maintaining operational efficiency.
Implementation Method 1
generating pre-cracks and expanding existing cracks in the rock using water pressure through a water pressure supply control unit
Implementation Method 2
expanding the generated cracks using rubber inflation pressure through the crack expansion unit
Implementation Method 3
improving the sealing ability by firmly sealing the inner side of a rock by inflating a holder through forward movement of the wedge-type cylinder rod due to hydraulic pressure or water pressure
Data Source
AI summary
The present invention relates to a hybrid-type rock splitting packer using water pressure and rubber inflation pressure, and more specifically, the present invention comprises: a packer unit; a water pressure supply adjusting unit which comprises a water pressure pipe formed in the center inside the packer unit along the length direction, and first spray ports formed in the center of the water pressure pipe along the length direction so as to be spaced apart at predetermined intervals, and which supplies a certain level of water pressure to the first spray ports through the water pressure pipe; a shrinkage pressure supply unit which comprises a shrinkage pressure pipe installed on one side of the water pressure pipe so as to be spaced apart at a predetermined interval, and which supplies a certain level of hydraulic pressure or water pressure to the shrinkage pressure pipe; an inflation pressure supply unit which comprises an inflation pressure pipe installed on the other side of the water pressure pipe so as to be spaced apart at a predetermined interval, and which supplies a certain level of hydraulic pressure or water pressure to the inflation pressure pipe; and a crack expansion unit which is provided so as to be connected to the packer unit.