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Method for treating residual silt in slope shoulder position through blasting silt extrusion

A technology of blasting silt and silt, which is applied in blasting, soil protection, construction, etc. It can solve the problems of incomplete quality requirements, poor treatment effect, and reduced silt thickness, so as to shorten the construction period, improve construction efficiency, and improve construction efficiency. The effect of quality improvement

Active Publication Date: 2017-05-10
NO 3 ENG COMPANY LTD OF CCCC FIRST HARBOR ENG COMPANY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the treatment effect of the conventional process is poor, which can only reduce part of the sludge thickness, and cannot fully meet the quality requirements

Method used

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  • Method for treating residual silt in slope shoulder position through blasting silt extrusion
  • Method for treating residual silt in slope shoulder position through blasting silt extrusion
  • Method for treating residual silt in slope shoulder position through blasting silt extrusion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A method of blasting silting to deal with the residual silt at the slope shoulder. The hole is drilled by impact drilling on land, and the explosives are directly placed in the residual silt of the slope shoulder, and the explosives are deployed on the sea side at the same time. Blast, and deal with the residual silt at the slope shoulder.

[0031] The blasting and silting construction involved in this example is as follows: the total length of the permanent revetment is 6390m, the backfilling of the 45m wide embankment core stone inside the revetment has been completed in the early stage, and the outer 15m is treated with controlled loading blasting and silting replacement method for soft foundation treatment, and blasting silting treatment The soil layer is the first large layer of soil on the surface, and the thickness of the soil layer is 15m.

[0032] Construction quality requirements: The first large layer of soil on the surface is treated by blasting and silting,...

Embodiment 2

[0064] The operation of each step of a method for treating residual silt at the shoulder position by blasting described in this embodiment is the same as that in Embodiment 1, and the different technical parameters are:

[0065] 1) Determine the location of the percussion drilled hole as 5m away from the mud-rock interface;

[0066] 2) The distance between the charge holes of each row of explosives is 3.5m;

[0067] 3) When installing, reserve a distance of 5m between the hole wall and the outside of the bellows;

[0068] 4) Six sections of non-electric millisecond detonators are connected between the drilling charge and the detonating cord of the charge device;

[0069] 5) Perform 135ms differential blasting.

Embodiment 3

[0071] The operation of each step of a method for treating residual silt at the shoulder position by blasting described in this embodiment is the same as that in Embodiment 2, and the different technical parameters are:

[0072] 1) Determine the location of the percussion drilling hole to be 7m away from the mud-rock interface;

[0073] 2) The distance between the charge holes of each row of explosives is 4.5m;

[0074] 3) When installing, reserve a distance of 10m between the hole wall and the outside of the bellows;

[0075] 4) 8 sections of non-electric millisecond detonators are connected between the drilling charge and the detonating cord of the charge device;

[0076] 5) Carry out 160ms differential blasting.

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Abstract

The invention relates to a method for treating residual silt in a slope shoulder position through blasting silt extrusion. The percussion drilling construction is performed on a land side; then, explosives are directly arranged in residual silt on a slope toe through formed holes; meanwhile, an explosive package is distributed in the position of an open sea side; the inner and outer two rows of explosives adopt the millisecond blasting; and the silt in the slope shoulder position is replaced through a blasting process to finish treatment of the silt in the slope shoulder position. The process directly arranges the explosives in the residual silt of the slope shoulder, is direct and effective in silt treatment, and is lower in construction cost, short in construction period and stable in construction quality.

Description

technical field [0001] The invention relates to a construction technology. Background technique [0002] Due to many unfavorable factors such as large silt thickness during lateral blasting and silting construction, the blasting silting effect cannot meet the design quality requirements, and thick silt remains at the bottom of the stone at the slope shoulder. [0003] The conventional treatment plan is to excavate the uplifted silt with a long-arm excavator, and then carry out filling and loading of stone materials, and add a lateral blasting construction to squeeze the silt. However, the treatment effect of the conventional process is poor, which can only reduce part of the sludge thickness, and cannot fully meet the quality requirements. Contents of the invention [0004] The purpose of the present invention is to propose a construction method for treating residual silt at the slope shoulder after blasting and silting construction. In order to achieve the above purpose...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F42D1/08E02D3/10
CPCE02D3/10F42D1/08
Inventor 霍阳王晓姝吕铁兵陈超刘柏麟于一博姜南岸
Owner NO 3 ENG COMPANY LTD OF CCCC FIRST HARBOR ENG COMPANY
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