Original state sampling method for constructed fractured rock mass

Abstract

The invention relates to an original state sampling method for constructed fractured rock mass, which aims at solving the technical problems that the original state structure of the constructed fractured rock mass is easily damaged under disturbance of the conventional sampling appliance, and the representative sample required by indoor research of a microstructure for a key geological structure is difficult to acquire. According to the technical scheme, the method comprises the following steps: a. drilling an observation hole in a shallow surface layer on which a rock sample to be sampled is positioned by using a drilling machine; b. putting positioning and imaging equipment in the observation hole for acquiring the geological structure position and physical characteristic information of the hole wall gap in the observation hole; c. positioning and plugging hole sections with complete rock mass or containing sparse fractures only in the observation hole by employing the plugging guide equipment according to information in the step b; d. injecting the epoxy resin curing agent glue solution into a reserved section in the observation hole, so as to inject the glue solution to the preset position along the dense fractures or fractured gaps of the reserved section under impact of high-pressure gas; e. reaming or continuously drilling the indoor analytical rock samples after the glue solution wholly reaches the bonding strength.

Description

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AI Technical Summary

Benefits of technology

This patented technology describes an improved way to study underground rocks more accurately during exploration or other activities that require accurate data from observed holes. It involves placing special tools inside the well casings before excavating them, allowing scientists to easily see how they have been doing things like drill bites while still being able to sample important areas around their area. These techniques help reduce resource waste compared to traditional ways, making analysis faster than current means. Additionally, there may exist various embodiments described depending upon specific requirements and applications. Overall, these technical improvements improve understanding of sedimentary basin dynamics and provide valuable insights about natural environments.

Problems solved by technology

This patented technical solution involves finding suitable sample materials containing only those parts that are likely lost during excavations or drilling operations. These material can be used to study the mechanisms involved in shale formation processes at different stages throughout its lifecycle.

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