CN101851920B - Treatment method of elevation-exceeding part of concrete pouring pile head - Google Patents
Treatment method of elevation-exceeding part of concrete pouring pile head Download PDFInfo
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- CN101851920B CN101851920B CN2010101946629A CN201010194662A CN101851920B CN 101851920 B CN101851920 B CN 101851920B CN 2010101946629 A CN2010101946629 A CN 2010101946629A CN 201010194662 A CN201010194662 A CN 201010194662A CN 101851920 B CN101851920 B CN 101851920B
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- pile head
- concrete
- pouring pile
- concrete pouring
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Abstract
The invention relates to a treatment method of an elevation-exceeding part of a concrete pouring pile head. The method comprises the following steps of: within 10 minutes after a pouring pipe is pulled out, inserting a branch compressed gas pipe of a concrete pouring pile head treatment device into concrete and ensuring that a distance of 100-500 millimeters is reserved between the bottom end of the branch compressed gas pipe and a required elevation of the pouring pile head; successively opening a regulating valve and a master regulating valve of the concrete pouring pile head treatment device to ensure that the compressed gas is ejected out from the bottom of the branch compressed gas pipe; within 3-10 minutes after slurry bubbles appear on the surface layer of the concrete, successively closing the master regulating valve and the regulating valve and stopping inputting the compressed gas; pulling the branch compressed gas pipe out; and chipping off a set elevation part exceeding the pouring pile head. In the invention, materials in different proportions in the concrete material are separated in the presence of the action of gas by adopting the compressed gas so that the strength of a redundant concrete part is greatly reduced, thus the part is easy to treat, and the main reinforcing steel bar of the pouring pile head and the quality of the pile head concrete are not easy to damage.
Description
Technical field
The present invention relates to underwater concrete filling pile head or wall tops such as bored pile or diaphragm wall, specifically belong to the processing method of the elevation-exceeding part of concrete pouring pile head.
Background technology
At present, the pouring pile head after underwater grouting finishes all is doped with laitance liquid and poor mud mostly on its pile crown.The existence of laitance liquid and poor mud will be very unfavorable to the quality of pouring pile head, to the building that will on this pouring pile head, build, will have very big harm.The constructor is the quality that guarantees pouring pile head and go up the building of building for this reason, the perfusion of taking to exceed setting mixes the measure of doubting about native pile crown 0.5-1.0m, after treating that pouring pile head finishes, to exceed the mixed part of doubting native pile crown of the perfusion that sets and root out, and the reinforcing bar master muscle that exceeds part is exposed.
Owing to root out is to adopt crushing engine or tip drilling hammer (pneumatic pick) to carry out mixed doubting when the soil stake reaches intensity, during operation, if carelessness is arranged slightly, just may make pile crown produce the crack, sometimes also may make the reinforcing bar master muscle that exceeds part produce damage or distortion, and causing guaranteeing that the perfusion that sets mixes the absolute altitude and the quality of doubting native pile crown, labour intensity is time-consuming greatly again, and can not guarantee workmanship.
Summary of the invention
The objective of the invention is to overcome above-mentioned deficiency, provide that a kind of perfusion that exceeds setting mixes that the part of doubting native pile crown absolute altitude is rooted out easily, the time spent is few, the reinforcing bar master muscle of pile crown and exposed portions serve is difficult for the processing method of the elevation-exceeding part of impaired concrete pouring pile head.
Realize the technical measures of above-mentioned purpose:
The processing method of elevation-exceeding part of concrete pouring pile head, its step:
1) after the concrete pouring pipe is extracted≤10 minutes in, will by compressed gas house steward, the compressed gas arm that is connected with the compressed gas house steward, compressed gas source, compressed gas house steward go up adjusting main valve, the pressure meter of installing and the concrete pouring pile head treating apparatus formed the control valve that on the compressed gas arm, connects in compressed gas arm insertion concrete in, and make the bottom of compressed gas arm and pouring pile head require 100～500 mm distance are arranged between the absolute altitude;
2) successively open control valve on the compressed gas arm in the concrete pouring pile head treating apparatus and the adjusting main valve on the compressed gas house steward, make the bottom ejection of compressed gas via the compressed gas arm;
3) after the concrete surface layer of perfusion begins to occur mud bubble in 3～10 minutes, successively close adjusting main valve on the compressed gas house steward in the concrete pouring pile head treating apparatus and the control valve on the compressed gas arm, stop the input of compressed gas;
4) stop the input of compressed gas after, extract with the compressed gas arm that is about in the concrete pouring pile head treating apparatus;
5) part of the setting absolute altitude that exceeds pouring pile head is rooted out.
It is: the compressed gas pressure in the compressed gas arm is 0.3～1.0Mpa.
The present invention compared with prior art, it is owing to adopt Compressed Gas, make the material of the different compositions of each proportion in the concrete material under the effect of gas, produce separating layer, cause cement paste, sand, building stones produce segregation and reduce the intensity of redundance concrete greatly, the bottom that is separating layer is heavy building stones, the upper strata is the little cement paste of proportion, the intermediate layer is the sand material of proportion between building stones and cement paste, mix the part-structure feature that doubtful native pile crown exceeds standard high according to the perfusion after this compressed gas separation, cause the processing of this part is easy to, and the not main reinforcement of easy damaged pouring pile head and pile crown concrete quality, thereby effectively having guaranteed to irritate mixes the pouring quality of doubting native pile crown, for follow-up construction engineering quality has been laid solid foundation.
Description of drawings
Fig. 1 is the structural representation of the treating apparatus of elevation-exceeding part of concrete pouring pile head
Fig. 2 is Fig. 1 scheme of installation at the scene
The specific embodiment
Be further described below in conjunction with accompanying drawing
This specific embodiment is considered its economy, the compressed air that compressed gas adopts, and its pressure is 0.3～1.0Mpa; The diameter of concrete pouring pile head is 100 centimetres/120 centimetres/150 centimetres/180 centimetres/250 centimetres among the embodiment.When the diameter of concrete pouring pile head during less than 100 centimetres, compressed gas arm 2 is installed 1～2.
The diameter of the concrete pouring pile head of the treating apparatus of elevation-exceeding part of concrete pouring pile head: embodiment is all greater than 100 centimetres, thus welding or with 2/3/4/5/6 compressed gas arms 2 that are threaded on compressed gas house steward 1, and even layout; Near compressed gas house steward 1 epimere place a control valve 6 is installed at every compressed gas arm 2; The bottom of compressed gas arm 2 and pouring pile head to require between the absolute altitude distance be 100 millimeters/200 millimeters/300 millimeters/400 millimeters/500 millimeters; To can not produce inflammable and explosive compressed gas source 3 with compressed gas house steward 1 employing welding or with being threaded by the air or on-the-spot satisfactory other of air compressor machine compression; Difference setting pressure table 4 and hand are regulated main valve 5 on the compressed gas house steward 1.
The processing method of elevation-exceeding part of concrete pouring pile head, its step:
1) 2 minutes after the concrete pouring pipe is extracted, the compressed gas arm 2 of elevation-exceeding part of concrete pouring pile head treating apparatus is inserted in the concrete, when making compressed gas arm 2, according to its bottom and pouring pile head to require the distance between the absolute altitude be 100 millimeters demarcation, need not in the concrete to adjust so compressed gas arm 2 inserts;
2) successively open control valve 6 on the compressed gas arm 2 for the treatment of apparatus of elevation-exceeding part of concrete pouring pile head and the adjusting main valve 5 on the compressed gas house steward 1, making pressure is that the compressed gas of 0.4Mpa sprays towards periphery via the bottom of compressed gas arm 2;
3) after the concrete surface layer of perfusion begins slurry bubble to occur 3 minutes the time, successively close adjusting main valve 5 on the compressed gas house steward 1 for the treatment of apparatus of elevation-exceeding part of concrete pouring pile head and the control valve 6 on the compressed gas arm 2, stop the input of compressed gas;
4) stop the input of compressed gas after, extract with the compressed gas arm 2 of the treating apparatus that is about to elevation-exceeding part of concrete pouring pile head;
5) part of the setting absolute altitude that exceeds pouring pile head is rooted out.
The processing method of elevation-exceeding part of concrete pouring pile head, its step:
1) 4.5 minutes after the concrete pouring pipe is extracted, the compressed gas arm 2 of elevation-exceeding part of concrete pouring pile head treating apparatus is inserted in the concrete, when making compressed gas arm 2, according to its bottom and pouring pile head to require the distance between the absolute altitude be 200 millimeters demarcation, need not in the concrete to adjust so compressed gas arm 2 inserts;
2) successively open control valve 6 on the compressed gas arm 2 for the treatment of apparatus of elevation-exceeding part of concrete pouring pile head and the adjusting main valve 5 on the compressed gas house steward 1, making pressure is that the compressed gas of 0.6Mpa sprays towards periphery via the bottom of compressed gas arm 2;
3) after the concrete surface layer of perfusion begins slurry bubble to occur 4.5 minutes the time, successively close adjusting main valve 5 on the compressed gas house steward 1 for the treatment of apparatus of elevation-exceeding part of concrete pouring pile head and the control valve 6 on the compressed gas arm 2, stop the input of compressed gas;
4) stop the input of compressed gas after, extract with the compressed gas arm 2 of the treating apparatus that is about to elevation-exceeding part of concrete pouring pile head;
5) part of the setting absolute altitude that exceeds pouring pile head is rooted out.
The processing method of elevation-exceeding part of concrete pouring pile head, its step:
1) 5 minutes after the concrete pouring pipe is extracted, the compressed gas arm 2 of elevation-exceeding part of concrete pouring pile head treating apparatus is inserted in the concrete, when making compressed gas arm 2, according to its bottom and pouring pile head to require the distance between the absolute altitude be 300 millimeters demarcation, need not in the concrete to adjust so compressed gas arm 2 inserts;
2) successively open control valve 6 on the compressed gas arm 2 for the treatment of apparatus of elevation-exceeding part of concrete pouring pile head and the adjusting main valve 5 on the compressed gas house steward 1, making pressure is that the compressed gas of 0.7Mpa sprays towards periphery via the bottom of compressed gas arm 2;
3) after the concrete surface layer of perfusion begins slurry bubble to occur 6 minutes the time, successively close adjusting main valve 5 on the compressed gas house steward 1 for the treatment of apparatus of elevation-exceeding part of concrete pouring pile head and the control valve 6 on the compressed gas arm 2, stop the input of compressed gas;
4) stop the input of compressed gas after, extract with the compressed gas arm 2 of the treating apparatus that is about to elevation-exceeding part of concrete pouring pile head;
5) part of the setting absolute altitude that exceeds pouring pile head is rooted out.
The processing method of elevation-exceeding part of concrete pouring pile head, its step:
1) 7 minutes after the concrete pouring pipe is extracted, the compressed gas arm 2 of elevation-exceeding part of concrete pouring pile head treating apparatus is inserted in the concrete, when making compressed gas arm 2, according to its bottom and pouring pile head to require the distance between the absolute altitude be 400 millimeters demarcation, need not in the concrete to adjust so compressed gas arm 2 inserts;
2) successively open control valve 6 on the compressed gas arm 2 for the treatment of apparatus of elevation-exceeding part of concrete pouring pile head and the adjusting main valve 5 on the compressed gas house steward 1, making pressure is that the compressed gas of 0.8Mpa sprays towards periphery via the bottom of compressed gas arm 2;
3) after the concrete surface layer of perfusion begins slurry bubble to occur 8 minutes the time, successively close adjusting main valve 5 on the compressed gas house steward 1 for the treatment of apparatus of elevation-exceeding part of concrete pouring pile head and the control valve 6 on the compressed gas arm 2, stop the input of compressed gas;
4) stop the input of compressed gas after, extract with the compressed gas arm 2 of the treating apparatus that is about to elevation-exceeding part of concrete pouring pile head;
5) part of the setting absolute altitude that exceeds pouring pile head is rooted out.
The processing method of elevation-exceeding part of concrete pouring pile head, its step:
1) 10 minutes after the concrete pouring pipe is extracted, the compressed gas arm 2 of elevation-exceeding part of concrete pouring pile head treating apparatus is inserted in the concrete, when making compressed gas arm 2, according to its bottom and pouring pile head to require the distance between the absolute altitude be 500 millimeters demarcation, need not in the concrete to adjust so compressed gas arm 2 inserts;
2) successively open control valve 6 on the compressed gas arm 2 for the treatment of apparatus of elevation-exceeding part of concrete pouring pile head and the adjusting main valve 5 on the compressed gas house steward 1, making pressure is that the compressed gas of 1.0Mpa sprays towards periphery via the bottom of compressed gas arm 2;
3) after the concrete surface layer of perfusion begins slurry bubble to occur 10 minutes the time, successively close adjusting main valve 5 on the compressed gas house steward 1 of elevation-exceeding part of concrete pouring pile head treating apparatus and the control valve 6 on the compressed gas arm 2, stop the input of compressed gas;
4) stop the input of compressed gas after, extract with the compressed gas arm 2 of the treating apparatus that is about to elevation-exceeding part of concrete pouring pile head;
5) part of the setting absolute altitude that exceeds pouring pile head is rooted out.
Through test, remove a used time of part that exceeds the setting absolute altitude of pouring pile head was reduced in 0.5 hour by original needs in 1～2 hour, on inspection, pile crown concrete quality of find setting and the main reinforcement that exceeds the setting absolute altitude part of pouring pile head do not sustain damage or metaboly.
Claims (2)
1. the processing method of elevation-exceeding part of concrete pouring pile head, its step:
1) after the concrete pouring pipe is extracted≤10 minutes in, will by compressed gas house steward, the compressed gas arm that is connected with the compressed gas house steward, compressed gas source, compressed gas house steward go up adjusting main valve, the pressure meter of installing and the concrete pouring pile head treating apparatus formed the control valve that on the compressed gas arm, connects in compressed gas arm insertion concrete in, and make the bottom of compressed gas arm and pouring pile head require 100～500 mm distance are arranged between the absolute altitude;
2) successively open control valve on the compressed gas arm in the concrete pouring pile head treating apparatus and the adjusting main valve on the compressed gas house steward, make the bottom ejection of compressed gas via the compressed gas arm;
3) after the concrete surface layer of perfusion begins to occur mud bubble in 3～10 minutes, successively close adjusting main valve on the compressed gas house steward in the concrete pouring pile head treating apparatus and the control valve on the compressed gas arm, stop the input of compressed gas;
4) stop the input of compressed gas after, extract with the compressed gas arm that is about in the concrete pouring pile head treating apparatus;
5) part of the setting absolute altitude that exceeds pouring pile head is rooted out.
2. the processing method of elevation-exceeding part of concrete pouring pile head as claimed in claim 1, it is characterized in that: compressed gas pressure is 0.3～1.0Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101946629A CN101851920B (en) | 2010-06-01 | 2010-06-01 | Treatment method of elevation-exceeding part of concrete pouring pile head |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010101946629A CN101851920B (en) | 2010-06-01 | 2010-06-01 | Treatment method of elevation-exceeding part of concrete pouring pile head |
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| Publication Number | Publication Date |
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| CN101851920A CN101851920A (en) | 2010-10-06 |
| CN101851920B true CN101851920B (en) | 2011-07-27 |
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| CN103485343B (en) * | 2013-09-03 | 2015-10-21 | 深圳市金世纪工程实业有限公司 | Filling pile head processing method |
| CN112030960A (en) * | 2020-07-22 | 2020-12-04 | 中铁十局集团第一工程有限公司 | Construction method of separable fulcrum pile |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1316570A (en) * | 2000-04-05 | 2001-10-10 | 陈为群 | Prefabrication and casting combined technology for forming piles |
| CN1196835C (en) * | 2003-04-01 | 2005-04-13 | 王国奋 | Piling method C |
| CN1974939A (en) * | 2006-12-12 | 2007-06-06 | 王茂华 | Construction foundation working method |
| CN101280563B (en) * | 2008-05-23 | 2010-07-14 | 中建五局第三建设有限公司 | Pretensioned prestressing pipe pile construction method under weak expansion soil condition |
| CN100510290C (en) * | 2008-07-11 | 2009-07-08 | 大连三川建设集团股份有限公司 | Construction method of steel pipe concrete column |
| CN101368389B (en) * | 2008-09-24 | 2010-06-02 | 中铁大桥局集团第五工程有限公司 | Single and double-wall combined steel cofferdam construction method and its single and double-wall combined steel cofferdam |
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Owner name: CHINA FIRST METALLURGICAL GROUP CO., LTD. Free format text: FORMER OWNER: WUHAN YIYE TRAFFIC ENGINEERING CO., LTD. Effective date: 20101216 |
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Free format text: CORRECT: ADDRESS; FROM: 430080 YIYE TECHNOLOGY BUILDING, NO. 3, GONGYE AVENUE, QINGSHAN DISTRICT, WUHAN CITY, HUBEI PROVINCE TO: 430081 NO. 3, GONGYE AVENUE, QINGSHAN DISTRICT, WUHAN CITY, HUBEI PROVINCE |
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Effective date of registration: 20101216 Address after: 430081 Wuhan Industrial Zone, Qingshan District, Hubei, No. 3 Applicant after: China First Metallurgical Group Co., Ltd. Address before: The rule of science and Technology Building No. 3 430080 Hubei Province, Wuhan City Qingshan District Industrial Avenue Applicant before: Wuhan First Metallurgical Communication Engineering Co., Ltd. |
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