公开(公告)号：US20240360762A1

公开(公告)日：2024-10-31

申请号：US18364733

申请日：2023-08-03

Applicant: Taiyuan University of Technology

Inventor： Guorui FENG ,  Junbiao MA ,  Jinwen BAI ,  Ruikai PAN ,  Yanna HAN ,  Xudong SHI ,  Jiachen MI ,  Guowei WU ,  Jun GUO ,  Fei CHANG

IPC: E21F17/16 ,  C04B14/06 ,  C04B18/04 ,  C04B22/06 ,  C04B22/14 ,  C04B40/02 ,  E21D11/10

CPC classification number: E21F17/16 ,  C04B14/06 ,  C04B18/0418 ,  C04B22/064 ,  C04B22/143 ,  C04B40/0231 ,  E21D11/10 ,  C04B2111/00017

Abstract: Disclosed is a method for backfilling and reconstructing a carbon storage space in an abandoned main roadway and storing CO2. A surrounding rock of the main roadway is surveyed through geophysical exploration technology, and an anchor bolts (anchor cables) are used to reinforce and support an area which has unstable confining pressure bearing. According to a width and a height of the roadway section of the main roadway, a support formwork is forged in advance, and after the support formwork is placed in the main roadway, backfilling slurry is injected to the periphery of the support formwork. Meanwhile, supercritical carbon dioxide is injected into the backfilling slurry and the roadway, respectively.