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Developing new technologies to make use of underground space

In the Rock Testing Block, we are working to develop new technologies for existing facilities such as tunnels and underground power generation plants. We also conduct research and development aimed at new underground facilities such as high level radioactive waste disposal sites. We use testing equipment having various different load-bearing capacities to スポーツベット得する人 and evaluate the mechanical, hydraulic, and physical properties of rock and bedrock under many different conditions, such as high-pressure and high-temperature environment deep under the ground.

High-level radioactive waste disposal facility

Types of スポーツベット得する人

Triaxial compression スポーツベット得する人, triaxial creep スポーツベット得する人, fatigue スポーツベット得する人, bending スポーツベット得する人
Triaxial compression スポーツベット得する人, permeability スポーツベット得する人, under high-pressure (80 MPa max.) and/or high-temperature (200℃ max.)
スポーツベット得する人 of various mock-ups using a combination of a load frame and hydraulic pressure generator

Facility Features

0.5 MN, and 4.6 MN load スポーツベット得する人 devices
80 MPa hydraulic pressure generators
Triaxial compression スポーツベット得する人 machine for soft rock (in a thermostatic laboratory)
Portable load スポーツベット得する人 machine
Rock specimen molding equipment (surface grinder, cutter, boring machine)

Triaxial スポーツベット得する人mpression machine for スポーツベット得する人 soft rock (in a thermostatic laboratory) — Triaxial compression machine for スポーツベット得する人 soft rock (in a thermostatic laboratory)

Rock specimスポーツベット得する人 molding equipmスポーツベット得する人t — Rock specimen molding equipment

Examples of Tests and Achievements

Basic research to build a rock mechanics model presuming a large rock cavern
Evaluation of strength and deformation characteristics of soft rock presumed urban underground
Performance evaluation of fiber-reinforced concrete materials and woody materials
Evaluation of mechanical properties of tunnel support members
Evaluation of rock permeability at high level radioactive waste disposal sites