Mud circulating method and circulating system for cast-in-place pile construction

A technology of circulation system and cast-in-place pile, which is applied in earthwork drilling, wellbore/well parts, flushing wellbore, etc. It can solve the problems of untidy site appearance, unusable ground, and unsatisfactory civilized construction, etc., and achieves convenience Construction, significant use effect, clean site effect

Inactive Publication Date: 2014-06-11
中石化胜利建设工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The ground of the site can no longer be used, and the appearance of the site is not clean and cannot meet the requirements of civilized construction

Method used

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  • Mud circulating method and circulating system for cast-in-place pile construction
  • Mud circulating method and circulating system for cast-in-place pile construction
  • Mud circulating method and circulating system for cast-in-place pile construction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] see figure 2 and image 3 The casing 1 includes a cylinder body 1.3 and a suspension ring 1.1, the cylinder body 1.3 is provided with a slurry port 1.2, and the slurry port 1.2 is connected with a slurry overflow pipe 1.4. The overflow pipe 1.4 and the cylinder body 1.3 are welded upward or downward, and the angle between the overflow pipe 1.4 and the cylinder body 1.3 is set between 70 degrees and 90 degrees. The pipe 1.4 is used for reverse circulation, and the downwardly inclined welded overflow pipe 1.4 is used for positive circulation to ensure smooth circulation of mud.

Embodiment 2

[0019] see Figure 4 and Figure 5 Casing 1 includes a cylinder body 1.3 and a suspension ring 1.1, cylinder body 1.3 is provided with a slurry port 1.2, and the outer wire pup joint 1.5 is welded on the slurry port 1.2 to be connected with the ball end connecting device with a screw thread, and the overflow pipe 1.4 is installed on the ball in the head connector. One end of the overflow pipe 1.4 is a spherical head; the ball head connection device is a tubular body, and the spherical head of the overflow pipe 1.4 is installed in the lumen, and one end of the nozzle is provided with an inner thread buckle to connect with the outer thread nipple 1.5, and the other end of the pipe The inner diameter of the mouth is greater than the outer diameter of the overflow pipe 1.4, so that the pipe body of the overflow pipe 1.4 can be rotated at multiple angles and adjusted freely. The included angle between the upper and lower inclinations of the overflow pipe 1.4 and the cylinder body...

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PUM

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Abstract

The invention discloses a mud circulating method and a circulating system for cast-in-place pile construction. The mud circulating method and the circulating system are applied in construction of direct and reverse circulating drilling cast-in-place piles. According to the mud circulating method disclosed by the invention, mud used for drilling casting is communicated with a mud pool and a drilling machine mud circulating pipeline through a ground circulating pipeline to construct the mud circulating system. The mud circulating system disclosed by the invention comprises the drilling machine mud circulating pipeline and the mud pool, wherein one end of the drilling machine mud circulating pipeline is communicated with a drilling machine, and the other end of the drilling machine mud circulating pipeline is communicated with a mud pump in the mud pool; a mud overflow control valve and a three-way pipe are arranged in the drilling machine mud circulating pipeline; the three-way pipe is communicated with a waste mud pool through a mud discharging valve and a mud discharging pipe; a mud cast-in-place pile hole is communicated with the mud pool through the ground circulating pipeline. The original ground is not damaged, and the original appearance and the completeness of the ground are kept; only constructed pile holes are retained in the site subjected to construction, and the site is neat; therefore the mud circulating method and the mud circulating system can meet a requirement on a safe and civilized construction site, and the construction is greatly facilitated.

Description

technical field [0001] The invention relates to a circulation method of cast-in-situ pile construction mud in building construction, in particular to a mud circulation method and a circulation system of cast-in-situ pile construction, which are applied in the construction of positive and reverse circulation bored cast-in-place piles. Background technique [0002] In the current building pile foundation construction, the positive and reverse circulation bored piles adopt drilling rig drilling and mud wall protection, and the mud circulation between the pile hole and the mud pool is to dig open ditch on the ground of the construction site for circulation. The open ditch for mud circulation is constantly excavated and changed with the change of the pile hole position, so that the originally intact construction site becomes ravines and muddy after construction. The ground of the site is no longer usable, and the appearance of the site is not clean and cannot meet the requirement...

Claims

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Application Information

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IPC IPC(8): E21B21/12
Inventor 雷虎戚瑞安张军杨月刚林永军李金龙王翔程利国刘敏牛建明
Owner 中石化胜利建设工程有限公司
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