CN103046765B - Construction process for continued application of air-raid shelter - Google Patents
Construction process for continued application of air-raid shelter Download PDFInfo
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- CN103046765B CN103046765B CN201310026454.1A CN201310026454A CN103046765B CN 103046765 B CN103046765 B CN 103046765B CN 201310026454 A CN201310026454 A CN 201310026454A CN 103046765 B CN103046765 B CN 103046765B
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- shelter
- hole
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- fixing
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Abstract
The invention discloses a construction process for the continued application of an air-raid shelter, which comprises the following steps of: (1) drilling a grouting hole on the shelter wall of the inside of the air-raid shelter, wherein the grouting hole penetrates through the shelter wall and extends to the soil layer; and pre-embedding and fixing a grouting pipe into the grouting hole; (2) drilling fixing holes around the shelter wall, placing expansion bolts, binding a bar-mat reinforcement or installing a fixed molding mesh on the expansion bolts, and erecting and fixing a template on the outside of the bar-mat reinforcement or the molding mesh; (3) spraying fine stone concretes in a gap between the template and the shelter wall; and (4) after the template is removed, filling a gap between the shelter wall and the soil layer through grouting by using the grouting pipe, thereby completing the construction. According to the invention, a layer of solid reinforced concrete structure is formed on the outside of the shelter wall of the air-raid shelter through construction so as to realize the reinforcement of the air-raid shelter, therefore, the air-raid shelter is strong in pressure-bearing capacity and good in reinforcement effect; and the internal space of the air-raid shelter subjected to reinforcement is basically not affected, and can continue to be directly put into use.
Description
Technical field
The invention belongs to technical field of building construction, after particularly relating to a kind of bomb-shelter reinforcing, continue the construction technology used.
Background technology
The bomb shelter built in one's early years is in bad repair with age, and structural strength is poor, cannot directly use or directly construct in ground in the above, is scrap or continue utilization all to need to carry out consolidation process.ZL200610017568.X discloses a kind of bomb-shelter reinforcing construction process, it comprises following operation: (1) is moved towards along bomb shelter, one fixed width is chiseled at Dong Bi interval, bomb shelter and gos deep into original soil layer certain depth, one fixed width is chiseled on ground chiseling in hole corresponding to space with hole wall, earthward and hole wall chisel the full concrete of space spray and form stiffening frame; (2) Bi Shang interval, hole boring, to bomb shelter Dong Bi and outside it between soil body slip casting tamp gap, make its earth bearing strength close to or equal original soil layer earth bearing strength; (3) build brick wall by laying bricks or stones in stiffening frame side, connect to being formed to reinforce with stiffening frame along brick wall sprayed mortar and cut off; Building a wall and reinforcing reserved passage space on partition, bomb shelter can continue to use after this method is reinforced.But after using this technique to reinforce, Dong Nei space, bomb shelter greatly reduces on the one hand, and the reuse ratio in bomb shelter reduces greatly; On the other hand, the field strength in bomb shelter between two stiffening frames is well below the intensity at stiffening frame place, and consolidation effect is not good.
Summary of the invention
The construction technology used is continued after the object of this invention is to provide a kind of bomb-shelter reinforcing of the bomb-shelter reinforcing of raising greatly effect.
For achieving the above object, the technical solution used in the present invention is:
Continue the construction technology used after bomb-shelter reinforcing, comprise following operation: (1) beats injected hole from inside, bomb shelter at hole wall, and injected hole punches hole wall to soil layer, built-in slip casting pipe in injected hole is also fixing; (2) beat fixing hole along hole wall surrounding, and lay expansion bolt, assembling reinforcement net or install fixed-type mesh sheet on expansion bolt, fixing at steel mesh reinforcement or shaping netting outside erection template; (3) in template and Dong Bi gap, fine-stone concrete is sprayed; (4), after stripping, fill the gap between hole wall and soil layer by Grouting Pipe slip casting, complete construction.
On the wall of hole, arrange injected hole by quincunx interval 1m ~ 5m in operation (1), injected hole aperture is φ 20mm ~ φ 100mm; Grouting Pipe stretches out hole wall 15 mm ~ 30mm.
Beat fixing hole along hole wall surrounding by quincunx interval 500mm ~ 2000mm in operation (2), the fixing hole degree of depth is 15 ~ 200mm, and diameter is φ 50mm ~ φ 100mm.
In operation (3), template and Dong Bi gap are greater than 100mm; Fine-stone concrete intensity is more than C20.
In operation (4), injection slurry adopts neat slurry or mixed serum, and grouting pressure is 0.4Mp.
In the present invention, by beating fixing hole in hole, bomb shelter wall surrounding, and expansion bolt is laid in fixing hole, assembling reinforcement net or install fixed-type mesh sheet on expansion bolt, also fix at steel mesh reinforcement or shaping netting outside erection template, by spraying fine-stone concrete in template and Dong Bi gap, hole, bomb shelter wall is made to form the firm reinforced concrete structure of one deck outward, realize the reinforcing to bomb shelter, pressure-bearing is strong, consolidation effect is good, and it is substantially unaffected to reinforce space in rear hole, can directly continue to come into operation; By beating injected hole on the wall of hole, injected hole punches hole wall to soil layer, and built-in slip casting pipe in injected hole is also fixing, and fill the gap between hole wall and soil layer by Grouting Pipe slip casting, make hole body and surrounding soil layer one integrated mass, pressure-bearing is strong.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
As shown in Figure 1, continue the construction technology used after bomb-shelter reinforcing, comprise following operation: (1) is inner from bomb shelter beats injected hole at hole wall 2, and injected hole punches hole wall 2 to soil layer (being soil layer outside the wall of hole), and built-in slip casting pipe 3 in injected hole is also fixing; (2) beat fixing hole along hole wall 2 surrounding, and in fixing hole, lay expansion bolt 6, assembling reinforcement net or install fixed-type mesh sheet 5 on expansion bolt 6, fixing at steel mesh reinforcement or shaping netting 5 outside erection template 7; (3) in template 7 with hole wall 2 gap, fine-stone concrete 4 is sprayed; (4) stripping 7 after 7 days, as defectiveness, carries out filling spray smoothing; (or after 28 days) slip casting in 14 days, according to field condition note neat slurry or mixed liquor, fill the gap 1 between wall and the soil body by Grouting Pipe 3 slip casting, grouting pressure 0.4mp, site clearing after slip casting completes, namely completes construction.
On hole wall 2, arrange injected hole by quincunx interval 1m ~ 5m in operation (1), injected hole aperture is φ 20mm ~ φ 100mm; Grouting Pipe 3 stretches out hole wall 15 mm ~ 30mm.
Beat fixing hole along hole wall 2 surrounding by quincunx interval 500mm ~ 2000mm in operation (2), the fixing hole degree of depth is 15 ~ 200mm, and diameter is φ 50mm ~ φ 100mm.
In operation (3), template 7 and hole wall 2 gap are greater than 100mm; Fine-stone concrete intensity is more than C20.
In the present invention, before constructing, following preorder work need be carried out:
Ventilate: find out hole, put into air chimney (deep as far as possible) and ventilate more than half an hour (determining according to air compressor machine air quantity); Illumination: erection illumination (within safe voltage 60 volts); Cleaning: foreign material, rubbish in hole are cleared out outside hole; Location: get location aperture vertically upward in hole; Unwrapping wire: at ground unwrapping wire, accurately bomb shelter, location trend, width.
Use the present invention to carry out strengthening construction to bomb shelter, construction technology is simple, and consolidation effect is good, and pressure-bearing is strong, and after reinforcing, bomb shelter can directly continue to use.
Claims (3)
1. continue the construction technology used after bomb-shelter reinforcing, it is characterized in that, comprise following operation: (1) beats injected hole from inside, bomb shelter at hole wall, and injected hole punches hole wall to soil layer, built-in slip casting pipe in injected hole is also fixing; (2) fixing hole is beaten along hole wall surrounding by quincunx interval 500mm ~ 2000mm, the fixing hole degree of depth is 15 ~ 200mm, diameter is φ 50mm ~ φ 100mm, and lay expansion bolt, assembling reinforcement net or install fixed-type mesh sheet on expansion bolt, fixing at steel mesh reinforcement or shaping netting outside erection template; (3) in template and Dong Bi gap, fine-stone concrete is sprayed; (4) after stripping, fill the gap between hole wall and soil layer by Grouting Pipe slip casting, injection slurry adopts neat slurry or mixed serum, and grouting pressure is 0.4Mp, completes construction.
2. continue the construction technology used after bomb-shelter reinforcing as claimed in claim 1, it is characterized in that, on the wall of hole, arrange injected hole by quincunx interval 1m ~ 5m in operation (1), injected hole aperture is φ 20mm ~ φ 100mm; Grouting Pipe stretches out hole wall 15 mm ~ 30mm.
3. continue the construction technology used after bomb-shelter reinforcing as claimed in claim 1, it is characterized in that, in operation (3), template and Dong Bi gap are greater than 100mm; Fine-stone concrete intensity is more than C20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310026454.1A CN103046765B (en) | 2013-01-24 | 2013-01-24 | Construction process for continued application of air-raid shelter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310026454.1A CN103046765B (en) | 2013-01-24 | 2013-01-24 | Construction process for continued application of air-raid shelter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103046765A CN103046765A (en) | 2013-04-17 |
| CN103046765B true CN103046765B (en) | 2015-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310026454.1A Expired - Fee Related CN103046765B (en) | 2013-01-24 | 2013-01-24 | Construction process for continued application of air-raid shelter |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603508B (en) * | 2013-11-19 | 2016-06-08 | 中国建筑第二工程局有限公司 | A kind of pile foundation closure reperfusion reinforcement construction method in buried shelter |
| CN107013049B (en) * | 2017-05-23 | 2019-01-25 | 苏州方正工程技术开发检测有限公司 | A kind of method that faying face reinforces beam column component |
| CN108301634A (en) * | 2018-01-22 | 2018-07-20 | 广西科技大学鹿山学院 | A kind of reinforcement means of concrete structure |
| CN108316346B (en) * | 2018-03-07 | 2020-12-15 | 宁波工程学院 | Green treatment method for abandoned underground civil air defense hole |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0460891A2 (en) * | 1990-06-04 | 1991-12-11 | Yermiyahu Negri | Reinforced earth blast resistant structures and method of construction thereof |
| JPH11193640A (en) * | 1997-11-04 | 1999-07-21 | Ozawa Concrete Ind Co Ltd | Repairing method of existing concrete structure and construction method of newly provided concrete structure |
| CN1936199A (en) * | 2006-03-27 | 2007-03-28 | 李海广 | Bomb-shelter reinforcing construction process |
-
2013
- 2013-01-24 CN CN201310026454.1A patent/CN103046765B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0460891A2 (en) * | 1990-06-04 | 1991-12-11 | Yermiyahu Negri | Reinforced earth blast resistant structures and method of construction thereof |
| JPH11193640A (en) * | 1997-11-04 | 1999-07-21 | Ozawa Concrete Ind Co Ltd | Repairing method of existing concrete structure and construction method of newly provided concrete structure |
| CN1936199A (en) * | 2006-03-27 | 2007-03-28 | 李海广 | Bomb-shelter reinforcing construction process |
Non-Patent Citations (2)
| Title |
|---|
| 废弃防空洞及软弱地基的加固处理;罗长军;《岩土力学》;20031031;第24卷;第485-490页 * |
| 新建施工中既有人防工程的加固处理;王为民;《施工技术》;19990331;第28卷(第3期);第1页 * |
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| CN103046765A (en) | 2013-04-17 |
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Granted publication date: 20150715 Termination date: 20210124 |
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