Unlock instant, AI-driven research and patent intelligence for your innovation.

Construction method of rotary excavation cast-in-place pile

A construction method and technology of cast-in-situ piles, which are applied in sheet pile walls, foundation structure engineering, construction, etc., can solve mud pollution and other problems, and achieve the effects of reducing emissions, saving costs, and speeding up construction

Active Publication Date: 2019-08-02
SHANGHAI BAOYE GRP CORP
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a construction method of rotary digging cast-in-situ piles, which is used to increase the bearing capacity of pile foundations, increase the construction speed, ensure the construction quality of pile foundations, and solve the mud pollution problem caused by traditional techniques

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Construction method of rotary excavation cast-in-place pile
  • Construction method of rotary excavation cast-in-place pile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it, but the examples given are not intended to limit the present invention.

[0036] The diameter of cast-in-situ piles in the foundation pit of this project is 1000-1200mm, and the pile length is 12.8m-23.8m. The mud wall rotary drilling rig is used to form holes. The rotary drilling rig adopts Shanhe Intelligent SWDM22F rotary drilling rig.

[0037] Construction sequence: each rotary drilling rig is constructed according to "two to one" construction, such as figure 2 As shown, the construction sequence is 1-2-3-4-5-6-7-8-9-10-11-12.

[0038] Construction steps:

[0039] A: For casing burial, the steel casing must be buried before formal drilling, and the casing must be reinforced. The relevant requirements for the casing are as follows:

[0040] (1) Th...

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 provides a rotary excavating pouring pile construction method. The method comprises the first step of protection cylinder embedding, the second step of mud preparing, the third step of second hole drilling, the fourth step of first-time hole cleaning, the fifth step of reinforcement cage hoisting, the sixth step of second-time hole cleaning and the seventh step of concrete pouring. According to the construction method, mud pollution is avoided, environment protection is facilitated, and the method is particularly suitable for cities with dense crowds and buildings; the pile foundation quality is guaranteed, the problems of hole bottom sediments and hole wall mud cakes are solved, hole wall soil body loosening and non-dense contact between the pile body concrete and the pile side due to stress relaxation of the hole wall soil body are improved, the bearing force of a pile can be increased by 50%-100% under the conditions that the pile diameter and the pile length are not increased, and the construction speed is increased by 5-10 times.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a construction method of a rotary-dug cast-in-place pile. Background technique [0002] Pile foundation is a common form of foundation in the construction field. Cast-in-situ piles are poured with concrete in pre-drilled holes, and the pile body is formed after the concrete solidifies to become a foundation pile. Drilling is the key process of forming cast-in-place piles and pile foundations. Traditional drilling generally uses rotary drilling rigs, adopts forward (reverse) circulation technology, or uses percussion drills, and uses impact technology to complete drilling. Therefore, traditional cast-in-place pile forming technology exists. The following disadvantages: 1. Regardless of whether the rotary drilling rig or the percussion drilling rig is used, the rock (soil) in the formation needs to be cut and ground, and the hole is carried out through the mud to comp...

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 Patents(China)
IPC IPC(8): E02D5/38E02D15/04
CPCE02D5/38E02D15/04E02D2250/0023
Inventor 江华吴冰栗涛黄燕
Owner SHANGHAI BAOYE GRP CORP
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com