大断面立体斜交岔点支护与施工技术研究

金属矿山 ›› 2013, Vol. 42 ›› Issue (05): 34-36+40.

大断面立体斜交岔点支护与施工技术研究

肖煜^1,2，韩立军^1,2，张洋^1,2，梅凤清^1,2

1.深部岩土力学与地下工程国家重点实验室；2.中国矿业大学矿业工程学院

出版日期:2013-05-15 发布日期:2013-06-08

Study on Support and Construction Technology of Three-dimensional Oblique Intersection with Large Section

Xiao Yu^1,2，Han Lijun^1,2，Zhang Yang^1,2，Mei Fengqing^1,2

1.State Key Laboratory of Deep Geomechanics and Underground Engineering；2.School of Mines，China University of Mining and Technology

Online:2013-05-15 Published:2013-06-08

摘要/Abstract

摘要： 为了解决立体斜交叉巷道交岔点因交叉断面大、开挖扰动大、施工难度大而造成的支护效果差的难题，提出对交岔点采用主动和被动相结合的刚柔联合支护方式，先对上部运料巷进行锚网索预加固，而后在巷道交叉段应用型钢支护，并采用盖挖法进行交叉段的施工。实践证明：这种支护方式和施工技术支护效果较好，起到了保证安全、降低施工难度、缩短运料巷运输中断时间的作用。

关键词: 立体交岔点, 锚网索支护, 型钢支护, 盖挖法

Abstract: In order to solve the problem of poor supporting effect of the three-dimensional Oblique intersection，which was caused by large cross section，big excavation disturbance and construction difficulty，an active and passive combined rigid-flexible combination support was proposed. Pre-reinforcement to above haul lane was adopted with bolt-mesh-anchor support system firstly，then the Steel support was applied for the cross-section of the two roadways. Finally，the cover-excavation method is used to the construction of intersection roadway. The practice results show that the application of this support and construction technology achieved a better effect of supporting. It plays the role in ensuring the security，lowering the construction difficulty，minimizing the transport time hindered.

Key words: Three-dimensional intersection, Bolt-mesh-anchor support, Steel support, Cover-excavation method

肖煜, 韩立军, 张洋, 梅凤清. 大断面立体斜交岔点支护与施工技术研究[J]. 金属矿山, 2013, 42(05): 34-36+40.

XIAO Yu, HAN Li-Jun, ZHANG Yang, MEI Feng-Qing. Study on Support and Construction Technology of Three-dimensional Oblique Intersection with Large Section[J]. Metal Mine, 2013, 42(05): 34-36+40.

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