CN102864796A - Construction spreading foundation adaptive to filled ground settlement and construction method - Google Patents
Construction spreading foundation adaptive to filled ground settlement and construction method Download PDFInfo
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- CN102864796A CN102864796A CN2012103998701A CN201210399870A CN102864796A CN 102864796 A CN102864796 A CN 102864796A CN 2012103998701 A CN2012103998701 A CN 2012103998701A CN 201210399870 A CN201210399870 A CN 201210399870A CN 102864796 A CN102864796 A CN 102864796A
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Abstract
The invention discloses a construction spreading foundation adaptive to a filled ground settlement and a construction method. The construction spreading foundation comprises an overhanging structure on the upper portion of a pillar foundation, the pillar foundation, a construction spreading foundation body, a cushion block layer and a basement cushion layer. The method for heightening the settled construction spreading foundation includes the following steps: 1) excavating filling until to the basement cushion layer; 2) horizontally arranging an ejecting beam under the overhanging structure on the upper portion of the pillar foundation; 3) placing jacks under the portions close to two ends of the ejecting beam; 4) ejecting the ejecting beam through the jacks; 5) filling cushion blocks between the construction spreading foundation body and the basement cushion layer under the construction spreading foundation body; and 6) finally, demounting the jacks and the ejecting beam, and placing the filling back. The construction spreading foundation is reasonable in structure, convenient to construct, safe and reliable, can effectively avoid bad influence to foundation construction and normal use of architectural structures caused by foundation settlement, and has good economic benefit and time benefit in engineering construction, and the height of the foundation can be adjusted at any time according to requirements.
Description
Technical field
The present invention relates to a kind of building spread footing structure, relate in particular to a kind of method that increases after the light-duty of filled ground sedimentation or low-rise building spread footing and the sedimentation thereof that adapts to.
Background technology
In the Mountain Urban Area of hypsography injustice, build, often need during smooth location to dig greatly greatly to fill out, but because construction costs and construction period, often be difficult to accomplish to ram packing in fact, if the house is built in the embankment district that does not meet the compaction quality requirement, when before the filled ground sedimentation is unstable, building, increase along with the time, this type of filled ground can produce sedimentation, and this sedimentation will directly cause building foundation to produce corresponding sedimentation, thereby in the building structure on basic top, produce harmful secondary stress, and building structure is deformed, cracking even unstability, thereby have a strong impact on structural safety work, therefore often need to this filled ground carry out ground process or adopt the relatively high pile foundation of cost with Load Transfer to stratum stable below the fill stratum, not only construct loaded down with trivial details, workload is large, and the materials'use amount is large, need to pay more economic cost.Carry out again housing construction if wait for uncompacted filled ground settlement stability, then required wait is banketed the fixed time, count from just beginning to banket generally at least about more than 5 years, build as after waiting for that recent fill is fixed and finishing again, the time cost of paying is then more expensive.
Therefore, need to transform the design and construction scheme of the building construction patten on the existing filled ground, absolute altitude did not reduce at the bottom of the sedimentation that can guarantee filled ground did not cause post, and after increasing, can also support reliably the superstructure post, guarantee the top-down reliable delivery of load and superstructure safety, avoid thus the relatively high ground of cost to process and pile foundation construction scheme even wait fixed the finishing the more expensive loss of time that again construction causes of banketing.
Summary of the invention
For the prior art above shortcomings, purpose of the present invention just is to provide a kind of building spread footing that adapts to the filled ground sedimentation, can carry out jacking to it after ground generation sedimentation, to avoid sedimentation the safety of building structure is caused adverse effect.
Another object of the present invention also is to provide a kind of method to increasing after the above-mentioned spread footing sedimentation.
To achieve these goals, the technical solution used in the present invention is such: a kind of building spread footing that adapts to the filled ground sedimentation, it is characterized in that, comprise building spread footing body, below building spread footing body, be provided with the substrate bed course, described building spread footing body top is provided with base for post straight up, is provided with the structure of growing around this base for post top, and the described structure of growing is seen from top to bottom and is crossing distribution.
To the light-duty or low-rise building on the filled ground, adopt above-mentioned spread footing, need not to carry out ground processing or degree of depth piling, only need below the top-out structural column, to arrange above-mentioned spread footing structure, more easily tackle the sedimentation of banketing inadequate because of earth filling tamping or that overlong time causes, can after the sedimentation of banketing, carry out jacking to building foundation, make it be returned to the home position, thereby guarantee the safety and stablization of basic top-out structure.When Specific construction, the cross on the base for post top inside configuration of growing is strengthened by configuration reinforcement, make when jacking is carried out in substrate, the supporting capacity of the structure of growing is stronger, more firm, and when construction can be grown or the shallow embedding concordant with ground of the upper surface of structure in underground, and be more attractive in appearance like this, the follow-up construction of being more convenient for.Increasing work and can independently increase work according to the different sedimentation degree of the spread footing of each position after the sedimentation, more practical, and the constructing operation of being more convenient for.
Further, be filled with the cushion block layer between building spread footing body and the substrate bed course; Described cushion block layer adopts precast concrete cushion block or prefabricated cement bonded sand lumps, its requirement of strength satisfies stressed load bearing requirements, be not less than simultaneously the concrete strength of building spread footing body, during Specific construction, can be according to stressing conditions within it section's arrangement of steel wires net or steel mesh reinforcement.
Further, described base for post is column, base for post with and the structure of growing on top adopt that Reinforced Concrete Materials is cast-in-place to be made, its inside all disposes the cage of reinforcement that vertical muscle, lateral tie form.To improve its supporting capacity, more firm, can guarantee better the safety and stablization of top-out; Base for post needs reliably to be connected with the superstructure post, thereby makes the stability of building structure and spread footing integral body better, safer.
Further, this building spread footing is applied to the building system that superstructure adopts frame construction or bent structure; Described superstructure adopts reinforced concrete post, steel structure column, masonry structure post or wooden construction post.
The job practices that increases after the above-mentioned building spread footing sedimentation is characterized in that, comprises the steps:
1) after the sedimentation of banketing, the excavation that bankets around this spread footing until the substrate bed course, and is removed banketing above the substrate bed course;
2) the structure lower horizontal of growing on base for post top arranges lifting beam, and lifting beam is positioned at the relative both sides of base for post or all around, the two ends of described lifting beam are positioned at the both sides of building spread footing body;
3) place jack below place, the close two ends of lifting beam, the push rod of described jack contacts with lifting beam, and can effectively carry out jacking to lifting beam;
4) utilize the jack pair lifting beam to carry out jacking, make building spread footing body get back to former design elevation position;
5) toward building spread footing body with its below space between the substrate bed course be packed into all enough cushion blocks of quantity, thickness and intensity;
6) last, pull down jack and lifting beam, and reduction is banketed.
Compared with prior art, the invention has the advantages that:
1, the present invention is simple in structure, and is easy to use, can increase at any time as required the level height of building spread footing body.
2, adopt the inventive method, can carry out at any time engineering construction in fixed banketing not yet to finish, under the building structure post, also need not to adopt pile foundation simultaneously or carry out ground and process, only need to adopt conventional shallow foundation to get final product, reach economy, safe and reliable, easy construction is purpose efficiently.
3, when the shallow foundation under filled ground and the post produces sedimentation, because light-duty or the low-rise building structure is lighter, can adopt jack and lifting beam that jacking is carried out in spread footing by this structure, simultaneously the building spread footing body that produces after the jacking and the slit of substrate pads interlayer are clogged, adopt this mode, generation along with the sedimentation of banketing, at any time can be with jacking at the bottom of the post to former absolute altitude, Settlement Consolidation is stable until banket afterwards for many years, the adverse effect that the sedimentation of avoiding thus filled ground causes spread footing absolute altitude and building structure;
4, this invention can effectively solve all difficulties that cause because of foundation settlement in the building foundation construction on the conventional filled ground, has good economic benefit and time benefit, and easy construction is safe and reliable;
5, the present invention is applied widely, is not only applicable to filled ground, also is applicable to the project situation such as superstructure cracking that the uneven settlement of foundation in soft foundation and the various situation causes or unstability.Build simultaneously superstructure and can adopt frame construction or bent structure system, the superstructure post can also be applied to steel structure column, masonry structure post or wooden construction post except adopting reinforced concrete post.
Description of drawings
Fig. 1 is the structural representation that the present invention builds spread footing;
Schematic diagram when Fig. 2 increases after the spread footing sedimentation for the present invention is built;
Fig. 3 is that the present invention builds spread footing and is applied to the schematic diagram that top-out is frame construction;
Fig. 4 is that the present invention builds spread footing and is applied to the schematic diagram that top-out is bent structure.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples.
Embodiment: referring to Fig. 1 to Fig. 4, a kind of building spread footing that adapts to the filled ground sedimentation, comprise building spread footing body 1, below building spread footing body 1, be provided with substrate bed course 2, described building spread footing body 1 all adopts reinforced concrete cast-in-situ to make with substrate bed course 2, do first substrate bed course 2 during construction, after 2 concrete settings of substrate bed course, again construction building spread footing, need take measures during construction to prevent from building spread footing body 1 and substrate bed course 2 bondings, can adopt on substrate bed course 2 surfaces and smear the measures such as concrete parting agent.Substrate bed course 2 planar dimension scopes need satisfy the follow-up action need that can place at an upper portion thereof jacking block when building spread footing that increases.Be filled with cushion block layer 5 between building spread footing body 1 and the substrate bed course 2; Described cushion block layer 5 is concrete pad layer or cement sand bed, cushion block layer 5 interior arrangement of steel wires net or steel mesh reinforcement, form arrangement of reinforcement cement mortar bedding block layer and steel concrete cushion block layer, required cushion block layer 5 thickness adopt during less than 60mm the arrangement of reinforcement cement mortar to make, and adopt steel concrete to make during more than or equal to 60mm.Described building spread footing body 1 top is provided with base for post 3 straight up, be provided with the structure 4 of growing around these base for post 3 tops, during practice of construction, the structure of growing 4 end faces are lower than indoor and outdoor terrace absolute altitude, and the described structure 4 of growing is seen from top to bottom and is crossing distribution.
Described base for post 3 is column, base for post 3 with and the structure 4 of growing on top adopt that Reinforced Concrete Materials is cast-in-place to be made, its inside all disposes the cage of reinforcement that vertical muscle, lateral tie form, to improve its supporting capacity; During Specific construction, base for post 3 needs reliably to be connected with the superstructure post, thereby makes the stability of building structure and spread footing integral body better, safer.When designing, the described structure 4 of growing by active force and the load reinforced concrete member design of encorbelmenting straight up, determines thus suitable cross section and the size of growing, and the vertical muscle of the bending resistance of configuration capacity and shearing resistance lateral tie.
To light-duty or low-rise building, adopt above-mentioned spread footing, need not to carry out degree of depth piling, only need below the top-out structural column, to arrange above-mentioned spread footing structure, more easily tackle the sedimentation of banketing inadequate because of earth filling tamping or that overlong time causes, can after the sedimentation of banketing, carry out jacking to building foundation, make it be returned to the home position, thereby guarantee the safety and stablization of basic top-out structure.When Specific construction, the cross on the base for post 3 tops inside configuration of growing is strengthened by configuration reinforcement, make when jacking is carried out in substrate, the supporting capacity of the structure of growing 4 is stronger, more firm, and can make the upper surface of the structure 4 of growing concordant with ground (perhaps shallow embedding is in underground) during construction, more attractive in appearance like this.Increasing work and can independently increase work according to the different sedimentation degree of the spread footing of each position after the sedimentation, more practical, and the constructing operation of being more convenient for.
This building spread footing is applied to the building system that superstructure adopts frame construction or bent structure; Described superstructure adopts reinforced concrete post, steel structure column, masonry structure post or wooden construction post.
The job practices that increases after the above-mentioned building spread footing sedimentation comprises the steps:
1) after the sedimentation of banketing, the excavation that bankets around this spread footing until the substrate bed course, and is removed banketing above the substrate bed course;
2) the structure lower horizontal of growing on base for post 3 tops arranges lifting beam 6, and lifting beam 6 is positioned at the relative both sides of base for post 3 or all around, the two ends of described lifting beam 6 are positioned at the both sides of building spread footing body 1; Described lifting beam 6 can adopt steel work i iron, box-girder or RC Beam with Rectangular Section to make;
3) place jack 7 below place, lifting beam 6 close two ends, the push rod of described jack 7 contacts with lifting beam 6, and can effectively carry out jacking to lifting beam 6; In case of necessity, jacking block 8 is set below jack 7, so that lifting beam 6 is carried out effective jacking;
4) utilize 7 pairs of lifting beams of jack 6 to carry out jacking, make building spread footing body 1 get back to former design elevation position;
5) toward building spread footing body 1 with its below space between the substrate bed course 2 be packed into all enough cushion blocks of quantity, thickness and intensity; Described cushion block is arrangement of reinforcement cement mortar bedding block or steel concrete cushion block;
6) last, pull down jack 7 and lifting beam 6, and reduction is banketed.
The present invention also can be extended to the situation that may produce foundation settlement of other occasion except applicable filled ground, such as soft foundation, and other unfavorable foundation etc.
In addition, cushion block is made the form of upper level, lower tilt, may produce slightly inclination situation for spread footing body in the sedimentation of banketing, and can guarantee that the spread footing body keeps former level, and general this inclined degree is not very large.
Need to prove at last, above embodiment is only in order to illustrate technical scheme of the present invention but not the restriction technologies scheme, although the applicant has been described in detail the present invention with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, those are made amendment to technical scheme of the present invention or are equal to replacement, and do not break away from aim and the scope of the technical program, all should be encompassed in the middle of the claim scope of the present invention.
Claims (6)
1. building spread footing that adapts to the filled ground sedimentation, it is characterized in that, comprise building spread footing body, below building spread footing body, be provided with the substrate bed course, described building spread footing body top is provided with base for post straight up, be provided with the structure of growing around this base for post top, the described structure of growing is seen from top to bottom and is crossing distribution.
2. a kind of building spread footing that adapts to the filled ground sedimentation according to claim 1 is characterized in that, is filled with the cushion block layer between building spread footing body and the substrate bed course.
3. a kind of building spread footing that adapts to the filled ground sedimentation according to claim 2 is characterized in that, described cushion block layer is cement mortar bedding block layer or concrete pad layer.
4. a kind of building spread footing that adapts to the filled ground sedimentation according to claim 1, it is characterized in that, described base for post is column, base for post with and the structure of growing on top adopt that Reinforced Concrete Materials is cast-in-place to be made, its inside all disposes the cage of reinforcement that vertical muscle, lateral tie form.
5. a kind of building spread footing that adapts to the filled ground sedimentation according to claim 1 is characterized in that, this building spread footing is applied to the building system that superstructure adopts frame construction or bent structure; Described superstructure adopts reinforced concrete post, steel structure column, masonry structure post or wooden construction post.
6. the job practices that increases after the building spread footing sedimentation as claimed in claim 1 is characterized in that, comprises the steps:
1) after the sedimentation of banketing, the excavation that bankets around this spread footing until the substrate bed course, and is removed banketing above the substrate bed course;
2) the structure lower horizontal of growing on base for post top arranges lifting beam, and lifting beam is positioned at the relative both sides of base for post or all around, the two ends of described lifting beam are positioned at the both sides of building spread footing body;
3) place jack below place, the close two ends of lifting beam, the push rod of described jack contacts with lifting beam, and can effectively carry out jacking to lifting beam;
4) utilize the jack pair lifting beam to carry out jacking, make building spread footing body get back to former design elevation position;
5) toward building spread footing body with its below space between the substrate bed course be packed into all enough cushion blocks of quantity, thickness and intensity;
6) last, pull down jack and lifting beam, and reduction is banketed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210399870.1A CN102864796B (en) | 2012-10-19 | 2012-10-19 | Construction spreading foundation adaptive to filled ground settlement and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210399870.1A CN102864796B (en) | 2012-10-19 | 2012-10-19 | Construction spreading foundation adaptive to filled ground settlement and construction method |
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| Publication Number | Publication Date |
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| CN102864796A true CN102864796A (en) | 2013-01-09 |
| CN102864796B CN102864796B (en) | 2015-06-03 |
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| CN201210399870.1A Expired - Fee Related CN102864796B (en) | 2012-10-19 | 2012-10-19 | Construction spreading foundation adaptive to filled ground settlement and construction method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604080A (en) * | 2015-12-08 | 2016-05-25 | 中铁二院工程集团有限责任公司 | Spread foundation structure shaped like Chinese character 'pin' |
| CN107044142A (en) * | 2017-04-20 | 2017-08-15 | 南京工业大学 | Adjustable reinforcement and rectification method and structure for reducing house differential settlement |
| CN109058597A (en) * | 2018-07-25 | 2018-12-21 | 南京奥达升智能科技有限公司 | A kind of rapid rescue device |
| CN111608175A (en) * | 2020-06-12 | 2020-09-01 | 湖南城市学院 | Reinforcing pile for building bridge |
| CN114991198A (en) * | 2022-08-03 | 2022-09-02 | 山西龙炘电力工程有限公司 | Goaf transmission tower foundation and foundation reinforcing and adjusting method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2892972Y (en) * | 2006-03-16 | 2007-04-25 | 贵阳铝镁设计研究院 | Mountain area on soil concrete foundation bed course structure |
| JP2007170070A (en) * | 2005-12-22 | 2007-07-05 | Takenaka Komuten Co Ltd | Method for rebuilding building |
| CN102080382A (en) * | 2010-11-30 | 2011-06-01 | 济南大学 | Building foundation adaptable to goaf foundation deformation |
| CN102220769A (en) * | 2011-04-15 | 2011-10-19 | 上海天演建筑物移位工程有限公司 | System and method for underpinning and jacking building and adding storeys downwards |
| CN202492865U (en) * | 2012-04-01 | 2012-10-17 | 广东电网公司佛山供电局 | Correction device of transmission tower |
| CN202809635U (en) * | 2012-10-19 | 2013-03-20 | 重庆大学 | Building spread foundation adapted to filling subgrade settlement |
-
2012
- 2012-10-19 CN CN201210399870.1A patent/CN102864796B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007170070A (en) * | 2005-12-22 | 2007-07-05 | Takenaka Komuten Co Ltd | Method for rebuilding building |
| CN2892972Y (en) * | 2006-03-16 | 2007-04-25 | 贵阳铝镁设计研究院 | Mountain area on soil concrete foundation bed course structure |
| CN102080382A (en) * | 2010-11-30 | 2011-06-01 | 济南大学 | Building foundation adaptable to goaf foundation deformation |
| CN102220769A (en) * | 2011-04-15 | 2011-10-19 | 上海天演建筑物移位工程有限公司 | System and method for underpinning and jacking building and adding storeys downwards |
| CN202492865U (en) * | 2012-04-01 | 2012-10-17 | 广东电网公司佛山供电局 | Correction device of transmission tower |
| CN202809635U (en) * | 2012-10-19 | 2013-03-20 | 重庆大学 | Building spread foundation adapted to filling subgrade settlement |
Non-Patent Citations (1)
| Title |
|---|
| 薛宪文等: "既有建筑基础顶升纠偏法之应用", 《浙江水利科技》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604080A (en) * | 2015-12-08 | 2016-05-25 | 中铁二院工程集团有限责任公司 | Spread foundation structure shaped like Chinese character 'pin' |
| CN107044142A (en) * | 2017-04-20 | 2017-08-15 | 南京工业大学 | Adjustable reinforcement and rectification method and structure for reducing house differential settlement |
| CN109058597A (en) * | 2018-07-25 | 2018-12-21 | 南京奥达升智能科技有限公司 | A kind of rapid rescue device |
| CN111608175A (en) * | 2020-06-12 | 2020-09-01 | 湖南城市学院 | Reinforcing pile for building bridge |
| CN114991198A (en) * | 2022-08-03 | 2022-09-02 | 山西龙炘电力工程有限公司 | Goaf transmission tower foundation and foundation reinforcing and adjusting method |
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| CN102864796B (en) | 2015-06-03 |
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