Jul 19, 2024 · A novel synchronous backfilling technology using self-compacting concrete in double-shield TBM tunnel was proposed. The optimal proportion of self-compacting concrete …

This paper investigates the behavior of five concrete shield tunnel segments with two self-compacting concrete and three mixed-fiber (steel fiber and polypropylene fiber) self …

Sep 13, 2019 · A support method using self-compacting concrete backfilling material (SCCBM) is proposed. Based on the simulation of TBM construction process, the support time and …

Sep 18, 2019 · In deep tunnel, the risk of TBM jamming will increase due to the no timely supporting. A support method using self-compacting concrete backfilling material (SCCBM) is …

Performance of Engineered Cementitious Composites (ECC) in shield tunnel segmental joints: A comparative study with ordinary reinforced concrete;Case Studies in Construction …

The segments for shield tunnel made of self-compacting concrete (SCC), which product system is established under conditions of once a day, are already supplied to shield tunnels. On the …

Jul 27, 2023 · In shield tunnel boring machine (TBM) tunnel construction, grouted pea gravel is used to fill gaps between the surrounding rock and segment rings, acting as a connecting layer …

The feasibility of using layered- Functionally Graded Self Compacting Cement Composite (FGSCCC) for precast shield-tunnel segments, in harmony with present concrete industry …

A design approach for self-compacting concrete based on deformability, 47 segregation resistance and passing ability models N. Kasemsamrarn and S. Tangtermsirikul

Feb 1, 2020 · We propose a support method using self-compacting concrete backfilling material (SCCBM) instead of pea-gravel backfilling and grouting. In this paper, based on simulations of …

Dec 1, 2024 · The application of hybrid steel fiber reinforced self-compacting concrete in shield segment is an effective solution for the above issues. Hybrid fiber can inhibit the development …

Finishing: Once the self-compacting concrete has been placed, it should be finished using a trowel or other finishing tool to create a smooth surface. Any surface imperfections should be …

Jun 9, 2024 · In order to study the mechanical response of a hard rock tunnel excavated by double shield tunnel boring machine (DS-TBM), a numerical method was introduced to …

Compacting Molecular Stacking and Inhibiting Self-Aggregation in Fullerene Transporting Layer for Efficient and Stable Perovskite Solar Cells ... suppresses self-aggregation and improves …

In deep tunnel, the risk of TBM jamming will increase due to the no timely supporting. A support method using self-compacting concrete backfilling material (SCCBM) is proposed.