[2B05-08] Design and technology options

11:15 AM - 11:30 AM JST(2:15 AM - 2:30 AM UTC)

[2B07] A Study on Manufacturing and Assembly Technology Options for PEM Method in Geological Disposal(2) Element Tests on Perforating Techniques for Steel Handling Shell in Advanced PEM

*Ryoji Yahagi¹, Yuta Ichikawa¹, Mitsunobu Okihara¹, Masakuni Tsuji², Takayuki Abe², Ryo Yasuda² (1. Shimizu, 2. RWMC)

Keywords:

High-level radioactive waste,Geological disposal,PEM method,Advanced PEM,Perforated steel handling shell for PEM,Perforating techniques

In the advanced PEM for geological disposal published in January 2025, a perforated steel handling shell (11% perforation rate) was introduced to ensure uniform groundwater infiltration into the handling shell after emplacement. This report presents a single-hole element test that compared various perforating techniques to obtain information contributing to the application conditions for the steel handling shell. The test results were organized from the perspectives of logistics, product quality, and economic rationality.