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Tunnel drilling method using double-boom drill jumbo

A technology of rock drilling rig and drilling method, which is applied in drilling equipment and methods, drilling equipment, earthwork drilling, etc. Benefits, the effect of promoting efficient use

Active Publication Date: 2018-12-11
NO 5 ENG OF CHINA RAILWAY 19 BUREAU GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In view of the current actual situation in our country, various construction units have not yet explored and unified the operation method, and the operation only relies on the personal experience of the operator of the rig, which cannot reflect the technical advantages of the rock drilling rig

Method used

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  • Tunnel drilling method using double-boom drill jumbo

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Embodiment Construction

[0017] see figure 1 , the tunnel drilling method of the two-arm rock drilling jumbo provides a two-arm rock drilling jumbo, the two-arm rock drilling jumbo includes a left drilling arm and a right drilling arm, and the two-arm rock drilling jumbo tunnel drilling method is carried out according to the following steps :

[0018] S1 Drilling Bottom Hole 11: The left drill arm and the right drill arm are respectively drilled from the outer foot of the tunnel to the center of the tunnel relative to each other. The drilling direction of the left drill arm and the right drill arm is figure 1 In the direction of arrow 1;

[0019] S2 drilling and lifting gun 12: the left drilling arm and the right drilling arm respectively drill holes from the center of the tunnel to the two sides away from each other. The drilled holes are the lifting gun 12, and the lifting gun 12 is located in the bottom hole 11 along the vertical direction. Above, the drilling direction of the left and right dril...

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Abstract

The invention provides a tunnel drilling method using a double-boom drill jumbo. The method using the double-boom drill jumbo which comprises a left drill boom and a right drill boom includes the steps of S1, drilling bottom holes; S2, drilling uplift blasting holes; S3, drilling peripheral holes; S4, drilling auxiliary holes; S5, drilling arch part expansion holes; S6, drilling cutting holes; S7,drilling central expansion holes, to be more specific, allowing the left drill boom and the right drill boom to perform row-by-row drilling from the center of a tunnel to the bottoms of lateral wallson two sides in an up-down-alternating manner. The method has the advantages that mutual interference between the left drill boom and the right drill boom of the drill jumbo can be avoided, the efficient use of the tunnel drill jumbo can be prompted, energy conservation and emission reduction can be achieved, safe and efficient tunnel construction can be guaranteed, and the maximum benefit of drill jumbo drilling and blasting is increased.

Description

technical field [0001] The invention relates to the technical field of tunnel drilling, in particular to a tunnel drilling method of a two-arm rock drilling jumbo. Background technique [0002] In the tunnel construction in our country, tunnel excavation has always been the key direction of scientific research and practice of many engineers and technicians. At present, the excavation and excavation of tunnels mainly adopts the mode of artificial pneumatic drilling. With the successive start of construction of large-scale tunnel engineering projects in my country in recent years, how to organize construction and production quickly, efficiently and energy-saving has become a new technical field, especially in The effective combination and application of mechanized operations and smooth blasting technology requires more research and exploration, which is a problem that is placed before the eyes of major construction units. [0003] In order to solve the above problems, construc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B7/02
CPCE21B7/02
Inventor 刘国强
Owner NO 5 ENG OF CHINA RAILWAY 19 BUREAU GRP
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