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Construction method of pilot hole smooth blasting and blasting hole positioning device

A construction method and technology of positioning device, applied in blasting and other directions, can solve the problems of position deviation of blasting holes and poor blasting effect, and achieve the effects of improving accuracy, reducing inaccurate position of blasting holes, and improving stability.

Active Publication Date: 2022-04-12
山东省淮海建设管理集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When carrying out smooth blasting, the construction of blast holes is extremely important. First, the engineer needs to calculate the position, quantity, size and spacing of the blast holes, and then the constructors carry out the construction according to the drawings. In the existing construction process, the construction workers use a tape measure Measure the position of the blast hole. This method has a deviation in the position of the blast hole due to the operator's measurement error, resulting in a poor blasting effect.

Method used

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  • Construction method of pilot hole smooth blasting and blasting hole positioning device
  • Construction method of pilot hole smooth blasting and blasting hole positioning device
  • Construction method of pilot hole smooth blasting and blasting hole positioning device

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Embodiment 1

[0032] Embodiment 1 is a construction method for pilot hole smooth surface blasting disclosed by the present invention, which includes the following steps:

[0033] Step 1. Calculate the size, quantity, hole depth and spacing of the required blasting holes according to the size of the blasting surface and form the design drawings;

[0034] Step 2: Determine a center point on the blast surface according to the design drawing, and then use the positioning device to locate the blast hole according to the design drawing and drill the hole;

[0035] Step 3, filling the drilled blast hole with explosives and evacuating personnel;

[0036] Step 4, detonate, and clean up the blast surface after detonation, and design the next blast according to the detonation situation.

Embodiment 2

[0037] Embodiment two, such as figure 1 As shown, a positioning device for a blast hole includes a reference rod 1, a mounting rod 2, a positioning ring 4, a scale 3, an adjustment mechanism 5, and an adjustment member 6. The reference rod 1 is fixedly connected to the blasting surface through an expansion bolt. The rod 1 is arranged horizontally, one end of the installation rod 2 is connected to one end of the reference rod 1 through a hinge, the positioning ring 4 is installed on the outer wall of the installation rod 2, the scale 3 is fixedly connected to the outer wall of the installation rod 2, and the scale 3 is along the Set along the length direction of the installation rod 2, the adjustment mechanism 5 is arranged between the positioning ring 4 and the installation rod 2, the adjustment mechanism 5 is used to adjust the position of the positioning ring 4 on the installation rod 2, and the adjustment member 6 is arranged between the installation rod 2 and the reference ...

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Abstract

The invention relates to a smooth surface blasting construction method of a pilot hole, which comprises the following steps: step 1, calculate the size, quantity, hole depth and spacing of required blasting holes according to the size of the blasting surface and form a design drawing; step 2, according to the design Determine a center point on the blasting surface according to the drawing, and then use the positioning device to locate the position of the blasting hole and drill the hole according to the design drawing; Step 3, fill the drilled blasting hole with explosives and evacuate personnel; Step 4, detonate, and Clean up the blasting surface after detonation, and design the next blasting according to the detonation situation, calculate the size, position and quantity of the blasting hole according to the size of the blasting surface, use the positioning device to locate the position of the blasting hole and drill it, which is convenient for operation The operator can accurately locate the position of the blast hole, which improves the accuracy of blasting on the blast surface and reduces the influence of inaccurate blast hole positions caused by the operator's visual selection of the blast hole.

Description

technical field [0001] The technical field to which the present invention relates, in particular, relates to a construction method of pilot hole smooth surface blasting and a blasting hole positioning device. Background technique [0002] Tunnel smooth blasting is one of the important technologies supporting the principle of the new Austrian method. It refers to a controlled blasting technology that, through correct selection of blasting parameters and reasonable construction methods, sub-regional and segmental differential blasting, the contour line after blasting meets the design requirements and the air surface is smooth and regular. [0003] When carrying out smooth blasting, the construction of blast holes is extremely important. First, the engineer needs to calculate the position, quantity, size and spacing of the blast holes, and then the constructors carry out the construction according to the drawings. In the existing construction process, the construction workers u...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F42D1/00F42D3/04
CPCF42D1/00F42D3/04
Inventor 孙中宏杨春梅武成徐小强
Owner 山东省淮海建设管理集团有限公司