It is of great importance to effectively control the
dynamic instability and continuous rockburst of the surrounding rock of deepburied
tunnel under the influence of high ground stress, ensure the stability of
surrounding rock, effective support structure and safety of construction
personnel, and pass through the rockburst section with high ground stress
smoothly and quickly. Therefore, the rockburst characteristics of Ping′an Tunnel on ChengduLanzhou Railway are
summarized, and the rockburst characteristics in different time periods,
different tunnel locations, different levels and different tunnel segments are
analyzed. Moreever, a comprehensive rockburst prevention and treatment measure
combining prevention, control and monitoring is put forward from the aspects of
technological method, blasting parameters, support structure and deformation
monitoring, which can effectively control the construction risk of rockburst
section of deepburied tunnel with high ground stress
and realize safe and rapid construction.
LI Jiangao
,
TANG Zelin
.
Analysis of Rockburst Characteristics of Deepburied
Tunnel and Comprehensive Control Technology: a Case Study of Ping′an
Tunnel on ChengduLanzhou Railway
[J]. Tunnel Construction, 2020
, 40(12)
: 1781
-1790
.
DOI: 10.3973/j.issn.2096-4498.2020.12.013
