Blasting construction method capable of controlling regularity and stability of rocky slope

A technology of stone slope and construction method, applied in blasting and other directions, can solve the problems that the rock stability of the slope is destroyed, it is difficult to popularize and use in a large range, and the uneven surface of the slope is uneven. Damage reduction effect

Inactive Publication Date: 2019-01-04
HENAN UNIVERSITY OF TECHNOLOGY
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AI Technical Summary

Problems solved by technology

This excavation method has three defects: (1) the surface of the slope after excavation is uneven; (2) it will destroy the stability of the slope and the rock below the slope, and bring certain hidden dangers to the safety of the slope; (3) The construction process is relatively complicated, and it is difficult to popularize and use it on a large scale

Method used

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  • Blasting construction method capable of controlling regularity and stability of rocky slope

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Embodiment Construction

[0015] Attached below figure 1 And embodiment further illustrate the present invention.

[0016] 【Example】

[0017] Refer to attached figure 1 , in order to overcome the deficiencies of poor slope smoothness and stability caused in the rocky slope excavation and blasting process in the prior art, the present invention provides a blasting technology for controlling the rocky slope smoothness and stability, which The feature is to reserve a light explosion layer for secondary blasting. Construction includes the following steps:

[0018] a. Detailed exploration of geological data, including soil and rock boundaries, weathered thickness and degree of fragmentation of rock strata, and structural characteristics of rock strata, etc.

[0019] b. Make a water intercepting ditch 1 at the top of the slope to intercept surface water.

[0020] c. Excavate and remove the soil layer 2 on the slope surface.

[0021] d. Carry out detailed design and blasting test, and further modify the...

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Abstract

The invention discloses a blasting construction method capable of controlling regularity and stability of a rocky slope in the field of rocky slope excavation in the civil engineering. According to the construction process, firstly, geological data in the construction area are surveyed, before construction, draining work is done, in the construction process, soil on the surface layer of the slopeis excavated and cleared, a blasting method is adopted for carrying out blasting excavation on the rock on the upper portion of a reserved smooth explosive layer, finally, blasting of the reserved smooth explosive layer is carried out, and a cartridge bag is arranged on the bottom of a blast hole for carrying out secondary blasting. Through the construction method, regularity and stability of therocky slope can be controlled, the damage to the stability of the slope due to primary blasting construction is reduced, and slope safety is ensured; and meanwhile, unnecessary earth rock excavation is reduced, construction cost is reduced, and the guarantee is provided for safety use of the road.

Description

technical field [0001] The invention relates to a blasting construction method for controlling smoothness and stability of rocky side slopes, in particular to a construction method for deep excavation of road cutting rocky side slopes. Background technique [0002] Stone slopes are a common type of slope in road construction. At present, with the vigorous development of road engineering in our country, especially the rapid development of road construction in the central and western mountainous areas, stone slopes are one of the most important types of slopes in mountainous areas. Therefore, reasonable excavation of rocky slopes plays a vital role in road safety, and the excavation method of rocky slopes determines the safe use of rocky slopes. [0003] The commonly used stone slope construction technology is to excavate the slope by blasting once, and then carry out construction protection. This excavation method has three defects: (1) the surface of the slope after excava...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F42D3/04F42D1/00
CPCF42D1/00F42D3/04
Inventor 徐志军韩星刘军张健原方张冉冉刘婷婷郭兆翔程远浩杜乾刘海林姜学佳庞照昆
Owner HENAN UNIVERSITY OF TECHNOLOGY
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