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Folding adjustable positioning and guiding device for tunnel excavation drilling and using method of folding adjustable positioning and guiding device

A positioning-oriented and foldable technology, applied in supporting devices, drilling equipment, directional drilling, etc., can solve the problems of affecting the effect of light explosion, difficulty in ensuring drilling accuracy, over-under-digging, etc., to reduce labor intensity and be beneficial to engineering. Cost control, control the effect of over-under-mining

Inactive Publication Date: 2022-04-05
HENAN POLYTECHNIC UNIV +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to effectively make up for the deficiencies caused by the drilling quality of the tunnel drilling and blasting method, especially for the surrounding holes, it is difficult to ensure the drilling accuracy by using the traditional manual drilling positioning and guiding method, which affects the light blasting effect and is prone to overshooting. In the case of tunnel excavation, the design provides a foldable adjustable tunnel excavation drilling positioning and guiding device with simple structure, convenient installation and disassembly, accurate positioning and precise guidance of the drilling hole and its use method

Method used

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  • Folding adjustable positioning and guiding device for tunnel excavation drilling and using method of folding adjustable positioning and guiding device
  • Folding adjustable positioning and guiding device for tunnel excavation drilling and using method of folding adjustable positioning and guiding device
  • Folding adjustable positioning and guiding device for tunnel excavation drilling and using method of folding adjustable positioning and guiding device

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Embodiment 1

[0040] Please refer to Figure 1~3 , the foldable adjustable tunnel excavation drilling positioning guide device provided by the present invention includes a support fixing device, a folding frame and multiple sets of adjustable drilling positioning guide sleeves, and multiple sets of adjustable drilling positioning guide sleeves set at intervals along the circumference of the folding frame;

[0041] The folding frame includes a symmetrically arranged left half and a right half, each of which includes a top arch section 1, a side arch section 2 and a bottom arch section 3 hinged sequentially from top to bottom, And the top arch section on the left half is connected with the top arch section pin on the right half, and the bottom arch section on the left half is connected with the bottom arch section pin on the right half. The cross-sectional features of the folding frame are matched, and there are multiple sets of adjustment holes 4 evenly distributed in an array along the cir...

Embodiment 2

[0046] Based on the foldable adjustable tunnel excavation drilling positioning guide device in embodiment 1, its use method includes the following steps:

[0047] S1. Sample rack installation: transport and assemble the arch sections of the folding sample rack in sections, first clean and level the tunnel floor, and place the bottom arch sections of the left half and right half near the tunnel surface 12 , and pin-join the corresponding ends of the two bottom arch sections, respectively hinge the side arch sections and the top arch sections on the bottom arch sections on the corresponding sides in sequence, then pin-join the corresponding ends of the two top arch sections, and then Support rods are installed between each arch section to make the foldable frame form a rigid structure;

[0048] S2. Alignment of the sample frame: According to the drilling position marked in advance on the tunnel, the adjustable fixed screw rod is used to level and align the folded sample frame, a...

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Abstract

The invention belongs to the technical field of underground engineering construction, and particularly relates to a folding type adjustable tunnel excavation drilling positioning and guiding device and a using method thereof.The folding type adjustable tunnel excavation drilling positioning and guiding device comprises a supporting and fixing device, a folding type sample frame and a plurality of sets of adjustable drilling positioning and guiding sleeves; the multiple sets of adjustable drilling positioning guide sleeves are arranged in the circumferential direction of the folding type sample frame at intervals. A folding type sample frame is designed according to characteristics of a tunnel excavation section, a guide sleeve is fixedly positioned on the folding type sample frame according to requirements of blasting design on peripheral holes, and the position of the guide sleeve can be adjusted according to changes of working conditions. The guide sleeve has the beneficial effects that when a drilling machine drills holes, a drilling tool drills along the guide sleeve, and the sleeve can be adjusted in time and moderately in the drilling process so as to ensure the accuracy of the drilling position, direction, angle and depth, so that the drilling quality is ensured, the blasting efficiency and the smooth blasting effect are improved, and the tunnel construction cost is effectively controlled.

Description

technical field [0001] The invention belongs to the technical field of underground engineering construction, and in particular relates to a foldable adjustable tunnel excavation drilling positioning guide device and a use method thereof. Background technique [0002] The drill and blast method is the main construction method for tunnel excavation. Usually, the method of measuring and setting out is used to locate the drilled hole, and the quality of the drilled hole is completely controlled by the working skills of the drill rig operator. There are large uncertainties and human factors. factor. For tunnel blasting, the drilling quality is the main factor affecting the blasting efficiency, especially the drilling quality of the surrounding holes has a greater impact on the smooth blasting effect. If not properly controlled, over- and under-excavation phenomena are prone to occur, which will have a great impact on the cost of tunnel excavation, support, and lining. Tradition...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B7/04E21B15/04
Inventor 张英才吴卫东王宗敏索学伟张馨宋志超杨亚明李宁宁王珂李龙张海涛马军超于云辉苏筱嘉
Owner HENAN POLYTECHNIC UNIV
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