Large-area blasting compaction treatment method of runway foundation

A treatment method and a large-area technology, which can be applied in basic structure engineering, soil protection, construction, etc., can solve problems such as reinforcement depth limitation, difficulty in meeting construction design requirements, and long construction period, and achieve good economic benefits.

Active Publication Date: 2018-08-03
北京中科力爆炸技术工程有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these treatment methods have a long construction period, require large-scale construction equipment, and the reinforcement depth is limited to a certain extent.
Especially when cofferdams and bank revetments need to be treated by squeezing silt

Method used

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  • Large-area blasting compaction treatment method of runway foundation
  • Large-area blasting compaction treatment method of runway foundation
  • Large-area blasting compaction treatment method of runway foundation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0105] The construction technology is: push fill on land + explosive ramming on the underwater slope + dynamic ramming on land;

[0106] The construction plans to adopt the all-on-land push-fill construction and the underwater explosive ramming process on the slope surface, advancing along the full width of the short side of the test area, with a footage of 8 meters per shot.

[0107] (1) Explosive compaction construction technology

[0108] The first land-filling advance (width 120 meters, footage 8 meters, elevation +4 meters) → the first single row of explosive ramming on the slope surface to form a gentle slope platform → the second explosive ramming on the gentle slope surface → inspection of ramming settlement → the second The land throwing and filling of the second footage is advanced by 8 meters → the first explosive ramming on the slope of the second footage (cycle according to the above process until it is completely completed). The schematic diagram of the process ...

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PUM

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Abstract

The invention discloses a large-area blasting compaction treatment method of a runway foundation. The method aims at large-area treatment of a deep and thick layer stone riprap foundation, and throw-filled stone obtained after dredging is adopted as a hydraulic foundation used for a runway. Segmentation slope underwater blasting tamping and land drilling blasting tamping are combined, the magnitude and the position of land blasting action energy are reasonably designed, hole bottom lower stone is blasted and extruded, and the compaction function is achieved. Reasonable throw-filling parametersand blasting parameters are calculated and designed, large-area and large-working-face advancing can be achieved, and the construction progress is accelerated.

Description

technical field [0001] The invention belongs to the field of blasting and is suitable for large-area treatment of deep and thick riprap foundations, such as hydraulic foundations used as runways after dredging and replacing stone materials. Background technique [0002] The airport runway is a very important part of the airport. It covers a large area, but the land in coastal cities is a scarce resource. Therefore, generally coastal cities build airports near the sea, but the foundations in coastal areas are generally not Whether it stipulates that the construction of airports has problems such as long construction period, high cost, and difficult protection, and it often takes several years to be put into use. Soil foundation treatment takes the longest time in airport construction, accounting for more than half of the entire construction period, so the speed of soil foundation treatment directly affects the construction period of the airport. On the premise of ensuring th...

Claims

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Application Information

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IPC IPC(8): E02D3/10
CPCE02D3/10
Inventor 张阳王峰西子阳张光权石磊黄春花尤奎杨韵嘏李宽
Owner 北京中科力爆炸技术工程有限公司
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