CN101392531A - Construction method for cutting and breaking reinforced concrete pile, column or ground beam - Google Patents
Construction method for cutting and breaking reinforced concrete pile, column or ground beam Download PDFInfo
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- CN101392531A CN101392531A CNA2008101517819A CN200810151781A CN101392531A CN 101392531 A CN101392531 A CN 101392531A CN A2008101517819 A CNA2008101517819 A CN A2008101517819A CN 200810151781 A CN200810151781 A CN 200810151781A CN 101392531 A CN101392531 A CN 101392531A
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Abstract
The invention discloses a construction method for cutting off and breaking reinforced concrete piles, columns or ground beams. The construction method comprises the following steps: (1) the elevation of a pile/column needing to be cut off and broken or the position of a beam is actually measured, and a cutoff position is marked on the pile/column or a beam body; (2) a concrete protective layer above the cutoff position is rejected, so as to strip a main bar from concrete; (3) the cutoff position of the pile/column or the beam body is transversely provided with one deep hole and two shallow holes, wherein the deep hole is used as a swelling hole, and the two shallow holes are used as fracture guide holes; and (4) the large end of expansion iron is inserted into the swelling hole, wherein an expansion iron body is a truncated cone consisting of an A part and a B part which are separated from the middle, and a drill key is inserted in the middle of the expansion iron so as to provide power for breaking the pile/column or the beam body. The construction method has the advantages of fundamentally lightening the labor intensity of workers, obviously improving work efficiency and greatly reducing construction cost, and can meet the requirements on construction quality, construction period, safety and environmental protection.
Description
Technical field
The present invention relates to a kind of engineering construction method, relate in particular to a kind of job practices that is used for cutting and breaking reinforced concrete pile, post or grade beam.
Background technology
At present, in the building engineering construction, having in the branch of basis much is pile foundation form, adopt the main bearing part of pile foundation form as building, the pile foundation that is which kind of form all can be constructed according to design elevation in work progress, it is above even more that the stake top mark height of having constructed usually can be higher than design elevation 600mm, in case stake top concrete strength does not reach designing requirement and influences workmanship and load bearing requirements.Some preformed pile causes the difference of absolute altitude because the bearing stratum structure is different in injection and static pressure process, it is a lot of that a top mark height often is higher than design elevation, so this part pile crown that is higher than design elevation must all remove.Blocking of pile crown is one working procedure that each pile foundation engineering must carry out for this reason.It all is to play the broken or manual method of playing cutter of cutter with pneumatic pick to carry out that traditional pile crown blocks, and labour intensity is big, and man-hour is long, and efficient is low, and traditional method of operating not only can not satisfy construction period, and the pile crown absolute altitude after the fragmentation and cross section planeness are also poor.This operation is not out in the cold always for many years, not job practices thereby often cause the defective phenomenon in stake top correctly.Play cutter by hand industrial accident easily takes place, the paces of incompatible modern construction technology can not reach workmanship, duration, safety, civilized construction and environmental protection requirement.
Summary of the invention
Purpose of the present invention provides a kind of job practices that can reduce labour intensity, the cutting and breaking reinforced concrete pile of increasing work efficiency, post or grade beam just in order to overcome above-mentioned deficiency of the prior art.
The present invention is achieved by following technical proposals: the job practices of a kind of cutting and breaking reinforced concrete pile, post or grade beam may further comprise the steps:
(1) to needing the stake of cutting and breaking, the absolute altitude of post or the position of beam to survey, on stake, post or beam body, marks the disconnect position mark;
(2) reject the above concrete cover of disconnect position, main muscle is peeled off concrete;
(3) laterally make a call to a deep hole and two shallow bore holes on the disconnect position of stake, post or beam body, deep hole is as the spalling hole, and two shallow bore holes are as the fracture pilot hole;
(4) fill in inwardly in the spalling hole than the bloated iron major part of the little 6-10mm of spalling bore dia with outside diameter, described bloated iron comprises the iron body that expands, described bloated iron body for separate from the centre A portion and the frustum of a cone formed of B portion; Insert to expand in the middle of the iron with drift, described drift comprises the drift body, and described drift body is provided with and is used for the afterbody that joins with power source, and the drift afterbody is connected with power source, gives power,, post or beam body rupture.
The hole depth in described spalling hole is 1/2nd to 3/4ths of stake footpath.
The degree of depth of described pilot hole is 50mm-150mm.
The tapering of described bloated iron body is 0.082 °～0.143 °, and length is 400～700mm.
The gradient of described drift body is 0.78 °～1.36 °, and length is 400～700mm.
The invention has the beneficial effects as follows: compare with traditional method of operating from economic benefit analysis, labour cost can reduce by percent 40%, and social benefit is relatively good, and especially benefit is considerable the duration, under same construction environment and the personnel's appointed condition, the duration can bring up to 200%; Can block concrete stake, post or the beam body of various models safely, quickly, fundamentally alleviate working strength of workers, obviously increase work efficiency, reduce operating expenses significantly.And can reach workmanship, duration, safety, reach environmental protection requirement.
Description of drawings
Fig. 1 is the structural representation of bloated iron among the present invention;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the structural representation of drift among the present invention;
Fig. 4 is the attached view of Fig. 3.
Reference numeral: 1, the expand A portion of iron body, 2, the B portion of the iron body that expands, 3, the drift afterbody, 4, the drift body.
The specific embodiment
Below in conjunction with drawings and Examples the present invention is further described:
See also Fig. 1 to Fig. 4, the job practices of a kind of cutting and breaking reinforced concrete pile of the present invention may further comprise the steps:
(1) uses level gauge, Sopwith staff, steel ruler needs to be carried out the absolute altitude actual measurement of the stake of cutting and breaking, annotate tangible disconnect position mark at the pile body subscript;
(2) reject the above concrete cover of disconnect position, main muscle is peeled off concrete; Topping must not too bend main muscle after rejecting, and more can not arbitrarily cut;
Generally need a deep hole as the spalling hole when (three) stake is punched; Two shallow bore holes are as the fracture pilot hole.Laterally punching on the pile body disconnect position, the degree of depth in spalling hole can be 1/2nd to 3/4ths of stake footpath, is higher than 1200MM when above as the pile crown that need block, and selects the pile crown toppling direction as required, should punch at the reverse side of toppling direction.The degree of depth of fracture pilot hole is 50mm-150mm, is positioned at the both sides in spalling hole, and the diameter on the cross section of its center line and reinforced concrete pile overlaps substantially and be vertical with the center line in spalling hole, the principle of the similar lumbering of its principle.
(4) fill in inwardly in the spalling hole than the bloated iron major part of the little 6-10mm of spalling bore dia with outside diameter, described bloated iron comprises the iron body that expands, described bloated iron body for separate from the centre A portion 1 and the frustum of a cone formed of B portion 2; Insert to expand in the middle of the iron with drift, described drift comprises drift body 4, and described drift body is provided with and is used for the afterbody 3 that joins with power source, and drift afterbody 3 is connected with power source, gives power,, post or beam body rupture.
Pile crown after blocking goes out outside the foundation ditch clearly with tyre crane handlebar pile crown as not having outside the special requirement.Clear pile crown, rubbish with the loading automobile again.
Above-mentioned job practices is not limited to cutting and breaking reinforced concrete pile, same applicable cutting and breaking reinforced concrete post or grade beam.
Do not relate to the raw-material use problem of engineering in the above-mentioned job practices, the iron that expands, drift are the utensils when being used to block pile body, and the tapering of described bloated iron body is 0.082 °～0.143 °, and the length of described bloated iron body is 400～700mm.Described bloated iron body can be with 45
#Tool steel is made.Certainly also available other high strength tool steel is made.The gradient of described drift body is 0.78 °～1.36 °.The length of described drift body is 400～700mm.Described power source can be a pneumatic pick, described pneumatic pick head front end and described adaptive linking to each other of drift afterbody.Power source also can be electric hammer or other pneumatic tools.
Although in conjunction with the accompanying drawings the preferred embodiments of the present invention are described above; but the present invention is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment only is schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present invention; not breaking away under the scope situation that aim of the present invention and claim protect, can also make a lot of forms, these all belong within protection scope of the present invention.
Claims (5)
1. the job practices of a cutting and breaking reinforced concrete pile, post or grade beam is characterized in that, may further comprise the steps:
(1) to needing the stake of cutting and breaking, the absolute altitude of post or the position of beam to survey, on stake, post or beam body, marks the disconnect position mark;
(2) reject the above concrete cover of disconnect position, main muscle is peeled off concrete;
(3) laterally make a call to a deep hole and two shallow bore holes on the disconnect position of stake, post or beam body, deep hole is as the spalling hole, and two shallow bore holes are as the fracture pilot hole;
(4) fill in inwardly in the spalling hole than the big end of bloated iron of the little 6-10mm of spalling bore dia with outside diameter, described bloated iron comprises the iron body that expands, described bloated iron body for separate from the centre A portion and the frustum of a cone formed of B portion; Insert to expand in the middle of the iron with drift, described drift comprises the drift body, and described drift body is provided with and is used for the afterbody that joins with power source, and the drift afterbody is connected with power source, gives power,, post or beam body rupture.
2. the job practices of cutting and breaking reinforced concrete pile according to claim 1, post or grade beam is characterized in that, the hole depth in described spalling hole is 1/2nd to 3/4ths of stake footpath.
3. the job practices of cutting and breaking reinforced concrete pile according to claim 1 and 2, post or grade beam is characterized in that, the degree of depth of described pilot hole is 50mm-150mm.
4. the job practices of cutting and breaking reinforced concrete pile according to claim 1, post or grade beam is characterized in that, the tapering of described bloated iron body is 0.082 °～0.143 °, and length is 400～700mm.
5. the job practices of cutting and breaking reinforced concrete pile according to claim 1, post or grade beam is characterized in that, the gradient of described drift body is 0.78 °～1.36 °, and length is 400～700mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101517819A CN101392531A (en) | 2008-09-25 | 2008-09-25 | Construction method for cutting and breaking reinforced concrete pile, column or ground beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101517819A CN101392531A (en) | 2008-09-25 | 2008-09-25 | Construction method for cutting and breaking reinforced concrete pile, column or ground beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101392531A true CN101392531A (en) | 2009-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101517819A Pending CN101392531A (en) | 2008-09-25 | 2008-09-25 | Construction method for cutting and breaking reinforced concrete pile, column or ground beam |
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| CN (1) | CN101392531A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821146A (en) * | 2014-02-12 | 2014-05-28 | 杭州建工集团有限责任公司 | Pile detonating and cutting construction process for PC (prestressed concrete) tubular piles |
| CN108532598A (en) * | 2018-05-30 | 2018-09-14 | 合肥智慧龙图腾知识产权股份有限公司 | A kind of concrete pile head breaker |
| CN108775226A (en) * | 2018-06-08 | 2018-11-09 | 兖州煤业股份有限公司 | A kind of device and method of underground static crushing armored concrete arch body |
-
2008
- 2008-09-25 CN CNA2008101517819A patent/CN101392531A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821146A (en) * | 2014-02-12 | 2014-05-28 | 杭州建工集团有限责任公司 | Pile detonating and cutting construction process for PC (prestressed concrete) tubular piles |
| CN103821146B (en) * | 2014-02-12 | 2015-08-19 | 杭州建工集团有限责任公司 | A kind of explosion cutting piles technique of PC pile tube |
| CN108532598A (en) * | 2018-05-30 | 2018-09-14 | 合肥智慧龙图腾知识产权股份有限公司 | A kind of concrete pile head breaker |
| CN108775226A (en) * | 2018-06-08 | 2018-11-09 | 兖州煤业股份有限公司 | A kind of device and method of underground static crushing armored concrete arch body |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Open date: 20090325 |