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Large-diameter rock-socketed pile rapid construction method and large-diameter rock-socketed pile rapid construction structure

A construction method and technology of rock-socketed piles, which are applied in basic structure engineering, drilling equipment and methods, sheet pile walls, etc., can solve the problem of high entry and exit costs of rotary excavators, difficulty in drilling rock mass for rotary excavators, and safety risks. It can avoid the loosening of surrounding rock and other unsafe effects, reduce unsafe risks, and make the bedrock excavation surface neat and beautiful.

Pending Publication Date: 2019-06-21
CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The safety risk of manual excavation of pile holes is high, and the construction time is long; the drilling efficiency of rotary excavators is high, but the entry and exit costs of rotary excavators are high, and they are restricted by space, roads and other conditions
Especially for rock-socketed piles in medium-hard rock, stone blasting is often required when digging holes manually, which has a great impact on safety; for rotary excavators, it is difficult to drill into the rock mass, and the mechanical wear is large, which is uneconomical.

Method used

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  • Large-diameter rock-socketed pile rapid construction method and large-diameter rock-socketed pile rapid construction structure
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  • Large-diameter rock-socketed pile rapid construction method and large-diameter rock-socketed pile rapid construction structure

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Embodiment Construction

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0019] In the description of the present invention, it should be noted that, unless otherwise specified and limited, the terms "installed", "set with", "sleeved / connected", "connected", etc. should be understood in a broad sense, such as " Connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an inte...

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Abstract

The invention discloses a large-diameter rock-socketed pile rapid construction method and a large-diameter rock-socketed pile rapid construction structure. Well wall reinforced concrete supporting ofa covering layer and bedrock part pile periphery pre-splitting drilling are completed through ground hole drilling and groove broaching. In the bedrock excavation process, in combination with pile periphery bedrock pre-splitting drilling, wedges placed in bedrock drill holes at the ground are hit to split bedrock, and thus stone excavation of the rock-socketed parts of the pile bodies is completed. The construction method is suitable for construction of pile foundations with different section shapes, and is particularly suitable for construction of large-diameter medium-hard rock-socketed piles. The construction method is high in construction flexibility, suitable for pile foundation construction under different topographic and geological conditions, easy and convenient to construct, safe,economical and rapid.

Description

technical field [0001] The invention belongs to the technical field of rock-socketed pile construction, and in particular relates to a rapid construction method and structure of a large-diameter rock-socketed pile. Background technique [0002] In the process of infrastructure construction, pile foundations are widely used, from building and bridge foundation piles to anti-slide piles for landslide control and so on. The pile foundation is mainly divided into two parts: pile hole excavation and reinforced concrete pouring. For the construction of pile holes, manual hole digging or rotary excavator drilling is mainly used at present. Manual excavation of pile holes has high safety risks and long construction time; the drilling efficiency of rotary excavators is high, but the entry and exit costs of rotary excavators are high, and they are restricted by space, roads and other conditions. Especially for rock-socketed piles in medium-hard rock, stonework blasting is often requi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/36E21D5/11E21B7/00
Inventor 张文毅
Owner CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD
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