Automatic measurement of hydraulic data obtained from the jumbo (rock drill) during drilling operations!
DRISS (Drilling Survey System) is conducted using a method similar to the commonly implemented "exploratory drilling." It automatically measures various hydraulic data obtained from the jumbo (rock drill) during the drilling operation and performs quantitative estimation and evaluation of the geological characteristics based on that data. The measurement data is categorized into machine behavior data obtained from the rock drill (feed pressure, impact pressure, rotation pressure, damping pressure, feed cylinder oil volume converted to drilling distance and speed) and visual observation data during drilling (water inflow, characteristics of cuttings, etc.). Please feel free to contact us if you have any inquiries. 【Features】 In DRISS, three parameters are obtained from the drilling data that are considered evaluable for determining geological strength: 1. Drilling speed (only downward) 2. Drilling energy 3. Damping pressure (drilling reaction) *For more details, please refer to the PDF materials or feel free to contact us.
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basic information
【Operational Procedures】 Exploration can be broadly divided into planning, preparation, measurement, and analysis tasks. [Planning] Conduct a literature review on the characteristics of the tunnel ground in advance and plan the exploration locations and conditions. [Preparation] As part of the measurement preparation work, install devices such as hydraulic piping and electrical wiring to automatically measure the behavior of the rock drill. This task takes a full day, so it is carried out during site holidays. [Measurement] When the standard exploration distance is approximately 30 meters, the measurement time on-site, including preparation and cleanup time for transporting and setting up rods and bits, is about 2 hours. [Analysis] Using dedicated analysis processing software, the time required for analysis work conducted at the on-site office is approximately 1.5 hours, allowing for quick reflection of the results in the construction process. *For more details, please refer to the PDF document or feel free to contact us.
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Applications/Examples of results
【Examples of Exploration Achievements】 ■Significant clay formation in fault fracture zones within hard rock with developed cracks *For more details, please refer to the PDF document or feel free to contact us.
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Company information
Ensan Koubou Co., Ltd. has been providing "IT Construction" primarily in the fields of construction and agriculture. "IT Construction" refers to the technology that enables the integration, accumulation, and processing of various data through the introduction of IT (information technology) and communication technology, aiming to rationalize and enhance precision in various business scenarios. Ensan Koubou has significant achievements and high-level technology, particularly in tunnel construction, utilizing various communication technologies for automated measurement and construction management systems. Additionally, their long-standing expertise and experience are applied in building databases for plant factories, analyzing and interpreting actual measurement data, and conducting predictive simulations.