Construction method of mechanical hole filling pile

A construction method and mechanical hole forming technology, applied in sheet pile wall, foundation structure engineering, foundation structure test and other directions, can solve the problems of great influence on bearing capacity, slow hole forming speed, enlargement and other problems, and achieve a strong reinforcement cage. , the effect of strong adaptability

Inactive Publication Date: 2019-10-25
CHINA CONSTR SECOND ENG BUREAU LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its construction advantages are: 1. Compared with the hammering method in sinking piles, the construction noise and vibration are much smaller; 2. It is possible to build piles with a diameter much larger than that of prefabricated piles; 3. It can be used on various foundations. It can be used; 4. The quality of construction has a great influence on the bearing capacity of the pile, but there are also disadvantages, such as the concrete is poured in muddy water, so the quality of the concrete is difficult to control; Slow speed, sludge pollutes th...

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  • Construction method of mechanical hole filling pile
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  • Construction method of mechanical hole filling pile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] A construction method for mechanical hole-forming cast-in-situ piles, specifically comprising the following steps:

[0067] (1) Preparatory work: Clear debris and then level the site. The size of the leveled site must be able to meet the construction position of the rotary drilling rig. The earthwork site is leveled and excavated directly to the bottom elevation of the raft cushion, and the measurement review is done and the data is recorded. filing;

[0068] (2) Stake out the pile position. According to the "principle from the whole to the local", the position of the pile foundation is set out. When setting out the elevation of the borehole, the elevation of the stakeout should be reviewed in time, and the total station is used to accurately stake out the height of each pile point. position, so that the error is within the specification requirements, the construction drilling rig needs the construction direction of the pile foundation of each building from inside to ou...

Embodiment 2

[0186] A construction method for mechanical hole-forming cast-in-situ piles, specifically comprising the following steps:

[0187] (1) Preparatory work: Clear debris and then level the site. The size of the leveled site must be able to meet the construction position of the rotary drilling rig. The earthwork site is leveled and excavated directly to the bottom elevation of the raft cushion, and the measurement review is done and the data is recorded. filing;

[0188](2) Stake out the pile position. According to the "principle from the whole to the local", the position of the pile foundation is set out. When setting out the elevation of the borehole, the elevation of the stakeout should be reviewed in time, and the total station is used to accurately stake out the height of each pile point. position, so that the error is within the specification requirements, the construction drilling rig needs the construction direction of the pile foundation of each building from inside to out...

Embodiment 3

[0217] A construction method for mechanical hole-forming cast-in-situ piles, specifically comprising the following steps:

[0218] (1) Preparatory work: Clear debris and then level the site. The size of the leveled site must be able to meet the construction position of the rotary drilling rig. The earthwork site is leveled and excavated directly to the bottom elevation of the raft cushion, and the measurement review is done and the data is recorded. filing;

[0219] (2) Stake out the pile position. According to the "principle from the whole to the local", the position of the pile foundation is set out. When setting out the elevation of the borehole, the elevation of the stakeout should be reviewed in time, and the total station is used to accurately stake out the height of each pile point. position, so that the error is within the specification requirements, the construction drilling rig needs the construction direction of the pile foundation of each building from inside to ou...

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Abstract

The invention discloses a construction method of a mechanical hole filling pile. The construction method particularly comprises the steps of leveling the ground, removing sundries, lofting a pile, embedding a steel pile casing, carrying out drilling construction, cleaning a hole, lifting a reinforcing cage, and pouring concrete, obtaining a filling pile foundation, and detecting the pile foundation. The pile foundation is detected by adopting a method of combing a single pile vertical compression resistance static test with low strain method integrity detection, so that the detection is more complete, and detection data is more complete; the construction method can adapt special terrains such as a mountainous area and an underground flow very well, has the very high adaptability, and is high in construction efficiency; the automation degree is high, and the displacement is flexible and convenient; the construction method is low in noise, low in vibration, large in torque, high in holeforming speed and high in efficiency; the safety performance is high; the construction method is free of mud circulation and is small in environmental pollution; and the construction method is a greenconstruction technology.

Description

technical field [0001] The invention relates to a construction method of mechanical hole-forming cast-in-situ piles, which belongs to the technical field of cast-in-place piles in building construction. Background technique [0002] The cast-in-situ pile system refers to the pile holes formed in the foundation soil by means of mechanical drilling, steel pipe extrusion or manual excavation on the project site, and piles made by placing steel cages and pouring concrete in them, depending on the method of hole formation. , Cast-in-situ piles can be divided into several categories such as immersed tube piles, bored piles and hole-dug piles. The construction of bored piles has two kinds of mud retaining method and no mud retaining wall construction method because of the difference in the formation of the selected retaining wall. Its construction advantages are: 1. Compared with the hammering method in sinking piles, the construction noise and vibration are much smaller; 2. It is...

Claims

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Application Information

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IPC IPC(8): E02D5/38E02D15/04E02D33/00
CPCE02D5/38E02D5/385E02D15/04E02D33/00E02D2300/0029E02D2300/002E02D2250/0023E02D2600/10
Inventor 李冉廖富兴许兴成唐建淞龚颖康刘振宇张恒倪元春孙缙环王洋郑佳蕊
Owner CHINA CONSTR SECOND ENG BUREAU LTD
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