CN103774676A - Construction method for dismounting foundation pit waist beam - Google Patents
Construction method for dismounting foundation pit waist beam Download PDFInfo
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- CN103774676A CN103774676A CN201410053999.6A CN201410053999A CN103774676A CN 103774676 A CN103774676 A CN 103774676A CN 201410053999 A CN201410053999 A CN 201410053999A CN 103774676 A CN103774676 A CN 103774676A
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- waist rail
- construction method
- foundation pit
- waist beam
- groove
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Abstract
The invention relates to a construction method for dismounting a foundation pit waist beam. The construction method is characterized by comprising steps as follows: a steel bar based on the foundation pit waist beam is implanted in an embedded manner, a construction joint between old and new concrete is used, the waist beam (1) is cut into sections by a barrel saw, a groove (4) is dug out in the middle of each section by an air pick, then a hydraulic concrete jack (3) is placed into each groove (4), and finally, the waist beam (1) is wholly removed from the side wall of a foundation pit. The construction method for dismounting the foundation pit waist beam is reasonable in design, fast in effect taking, environment-friendly and low in construction cost, and has high practicability and generalization performance.
Description
Technical field
The invention belongs to architectural engineering pit demolition of support structure field, particularly a kind of construction method of foundation ditch waist rail detaching.
Background technology
At present, the dismounting complex steps of foundation ditch waist rail, needs experience peeling, punching, perfusion, finally removes by pneumatic pick, it is slow that the method is removed effect, construction noise is large and produce a large amount of dust, therefore, need a kind of new not only fast but also the technology of environmental protection to solve above-mentioned waist rail detaching drawback.
Summary of the invention
The present invention, in order to overcome problem and the shortcoming of above-mentioned prior art existence, provides a kind of construction method of foundation ditch waist rail detaching, has solved the drawback that traditional waist rail detaching effect is slow, cost is high, noise is large, energy consumption is high.
For realizing above object, the present invention takes following technical scheme:
A kind of construction method of foundation ditch waist rail detaching, it is characterized in that carrying out according to the following steps: after the reinforcing bar based on foundation ditch waist rail adopts, the mode of bar planting is implanted, utilize the constuction joint between new-old concrete, adopt barrel saw by waist rail cutting section, in the middle of every section, adopt pneumatic pick to pick and dig out a groove, then hydraulic concrete jack is inserted in groove, waist rail entirety is pulled out from foundation pit side-wall the most at last.
Described waist rail cutting section, every segment length is 1.8-2.2m;
Described groove (4) is of a size of that 500mm is long, 300mm is wide, 300mm is dark, and length direction is perpendicular to foundation pit side-wall direction, can insert hydraulic concrete jack (3) completely.
The present invention has following beneficial effect:
(1) reasonable in design, workable, effect is fast;
(2) environmental protection (noise is low, dust is few, energy consumption little);
(3) cost-saving;
(4) practical, replicability is strong (along with increasing of deep-foundation pit engineering, pattern foundation pit supporting structure adopts the supporting and protection structure of diaphragm wall+inner support beam also to increase thereupon, and diaphragm wall and outer wall of basement pitch space are limited, in order to complete basement backfill, support wale need be removed).
Accompanying drawing explanation
Fig. 1 is waist rail detaching floor map of the present invention.
Fig. 2 is the A-A sectional drawing of Fig. 1.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention will be described in detail, but embodiments of the present invention are not limited to this:
As shown in Figure 1 and Figure 2,1 is foundation ditch waist rail, and 2 is foundation pit side-wall, and 3 is hydraulic concrete jack, and 4 is groove.
The construction method of a kind of foundation ditch waist rail detaching of the present invention is as follows:
(1) as shown in Figure 1, after adopting based on the reinforcing bar of foundation ditch waist rail, bar planting mode is implanted, and utilizes the constuction joint between new-old concrete, first with barrel saw by foundation ditch waist rail 1 cutting section, every segment length 2m is advisable.
(2) adopt pneumatic pick to pick on every section of waist rail and dig out groove 4, groove picks cutter to inserting hydraulic concrete jack 3, and its size is generally 500mm long (perpendicular to foundation pit side-wall direction), 300mm is wide, 300mm is dark.
(3) hydraulic concrete jack 3 is inserted in groove 4, start jack and carry out work, waist rail is pulled out from foundation pit side-wall 2 by entirety, and waist rail detaching is complete.
As above describe, can complete preferably the present invention.
Claims (3)
1. the construction method of a foundation ditch waist rail detaching, it is characterized in that carrying out according to the following steps: after the reinforcing bar based on foundation ditch waist rail adopts, bar planting mode is implanted, utilize the constuction joint between new-old concrete, adopt barrel saw by waist rail (1) cutting section, in the middle of every section, adopt pneumatic pick to pick and dig out a groove (4), then hydraulic concrete jack (3) is inserted in groove (4), waist rail (1) entirety is pulled out from foundation pit side-wall the most at last.
2. the construction method of a kind of foundation ditch waist rail detaching according to claim 1, is characterized in that: described waist rail (1) cutting section, every segment length is 1.8-2.2m.
3. the construction method of a kind of foundation ditch waist rail detaching according to claim 1, is characterized in that: described groove (4) is of a size of that 500mm is long, 300mm is wide, 300mm is dark, can insert hydraulic concrete jack (3) completely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410053999.6A CN103774676A (en) | 2014-02-18 | 2014-02-18 | Construction method for dismounting foundation pit waist beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410053999.6A CN103774676A (en) | 2014-02-18 | 2014-02-18 | Construction method for dismounting foundation pit waist beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103774676A true CN103774676A (en) | 2014-05-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410053999.6A Pending CN103774676A (en) | 2014-02-18 | 2014-02-18 | Construction method for dismounting foundation pit waist beam |
Country Status (1)
| Country | Link |
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| CN (1) | CN103774676A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101050632A (en) * | 2007-05-18 | 2007-10-10 | 北京建工集团有限责任公司 | Prestressed wale dismantling and replacing structure and method |
| KR100855098B1 (en) * | 2007-05-22 | 2008-08-29 | 정택동 | Strut structure as temporary system using a vertical truss at the end and the method thereof |
| CN101280564A (en) * | 2008-06-06 | 2008-10-08 | 北京建工集团有限责任公司 | Pit pile anchor breast wall concrete breast beam structure and construction method thereof |
| CN101705687A (en) * | 2009-10-23 | 2010-05-12 | 广东省基础工程公司 | Deep foundation pit reinforced concrete waist rail detaching device and construction method |
| CN102677680A (en) * | 2012-05-08 | 2012-09-19 | 广东省基础工程公司 | Dismantling method for concrete waist beam |
-
2014
- 2014-02-18 CN CN201410053999.6A patent/CN103774676A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101050632A (en) * | 2007-05-18 | 2007-10-10 | 北京建工集团有限责任公司 | Prestressed wale dismantling and replacing structure and method |
| KR100855098B1 (en) * | 2007-05-22 | 2008-08-29 | 정택동 | Strut structure as temporary system using a vertical truss at the end and the method thereof |
| CN101280564A (en) * | 2008-06-06 | 2008-10-08 | 北京建工集团有限责任公司 | Pit pile anchor breast wall concrete breast beam structure and construction method thereof |
| CN101705687A (en) * | 2009-10-23 | 2010-05-12 | 广东省基础工程公司 | Deep foundation pit reinforced concrete waist rail detaching device and construction method |
| CN102677680A (en) * | 2012-05-08 | 2012-09-19 | 广东省基础工程公司 | Dismantling method for concrete waist beam |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140507 |