Boring-tamping lime-soil compacting pile construction process

A lime-soil compaction pile and construction technology technology, applied in soil protection, sheet pile wall, foundation structure engineering and other directions, can solve problems such as restricted use and development, and achieve the effects of small vibration, low engineering cost and wide application range

Inactive Publication Date: 2005-10-05
祁春伟
View PDF0 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the above-mentioned shortcomings of the traditional method, the use and development of this foundation treatment method in urban areas and collapsible loess areas are greatly limited.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0019] Embodiment: the present invention, at first, adopts to get soil to become the hole of certain diameter and depth, when pile length is below 6 meters, adopts motor-driven Luoyang shovel to drill hole, when within 30 meters, adopts auger drilling machine to drill hole, through inspection hole depth and After the verticality of the hole meets the design requirements, use the column tip hammer to tamp the bottom of the hole first, then start filling, use the column tip hammer to compact and backfill layer by layer, until the backfilling is repeated to the designed elevation.

[0020] The construction sequence is as follows: construction inspection line--drilling machine in place-vertical correction-drilling-material mixing-pile driver in place-air rammer-filler-tamping-capping-pile driver shift. The deviation of the pile hole center should not exceed 1 / 4 of the design value of the pile diameter, and the strip foundation should not exceed 1 / 6 of the design value. The deviati...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention refers to a construction technique, which has a good effect for the drilling ram enlarge the gray soil and the stake. The concrete process is that perching the drill, vertical revising, drilling, milling the material, perching the pile driver, empty ram, filling in material, covering the top and moving the pile driver. The technique has the merits that it having small noisy, light vibration, can avoid the damp sinking efficiently, has a strong stake, the base can bear more weight, has the low cost of the project, project can be constructed in the city and has a broader application among the damp and sink loess areas.

Description

technical field [0001] The invention relates to a construction technique of a bored, rammed and expanded lime-soil compaction pile with a good treatment effect on the foundation Background technique [0002] At present, due to the traditional immersed tube or percussion drilling method, the equipment is heavy, the noise is large, and the vibration is large. Its construction method has long been eliminated by urban construction, and its construction technology has the following disadvantages: In the collapsible loess area, the soil quality is very hard, and it is difficult to drill holes when the geological hard layer is encountered, and the pile diameter is also limited. Pile length: soil extrusion drilling is used, limited by equipment capacity or soil layer conditions, the hole depth is limited, and the general pile length can only be within 10 meters. Bearing capacity of the foundation: the hammer used for backfilling is all below 1000 kg, the compaction coefficient of t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): E02D3/08E02D5/46
Inventor 祁春伟
Owner 祁春伟
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap