大断面切巷导硐施工技术应用分析
徐利华
（山西王家岭煤业有限公司，山西 保德 036600）
摘要： 针对工作面大断面切巷传统一次性成巷施工时，巷道掘进效率低、危险系数高、支护难度大等技术难题，王
家岭煤矿通过技术研究，对18109 工作面切巷提出了导硐施工工艺，并采取了“锚杆（索） +圆钢托架+单体柱”联合支
护技术。从实际应用效果来看，与传统一次性成巷掘进工艺相比，导硐施工工艺可缩短切巷掘进周期达5 d，采取联合支
护技术后有效提高了大断面切巷顶板的稳定性，取得了显著的应用成效。
关键词： 大断面切巷；导硐施工；支护技术
中图分类号： TD263.5     文献标识码： A     文章编号： 2095-0802-(2021)07-0199-02
Analysis on Application of Pilot Tunnel Construction Technology of Large Section
Cutting Roadway
XU Lihua
(Shanxi Wangjialing Coal Industry Co., Ltd., Baode 036600, Shanxi, China)
Abstract: In view of the technical problems such as low tunneling efficiency, high risk coefficient and difficult support in the
traditional one-time roadway construction of large section cutting in fully mechanized mining face, Wangjialing Coal Mine put forward
the pilot tunnel construction technology for the cutting roadway of 18109 working face through technical research, and
adopted the combined support technology of "anchor bolt (cable) + round steel bracket + single column". From the perspective of
practical application effect, compared with the traditional one-time roadway excavation technology, the pilot tunnel construction
technology could shorten the excavation period up to 5 d, and the combined support technology could effectively improve the
stability of the roof of large section roadway, which had achieved remarkable application effect.

Key words: large section cutting roadway; pilot tunnel construction; support technology