CN104153385A - Mattress layer, composite foundation and construction method for composite foundation - Google Patents
Mattress layer, composite foundation and construction method for composite foundation Download PDFInfo
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- CN104153385A CN104153385A CN201410416297.XA CN201410416297A CN104153385A CN 104153385 A CN104153385 A CN 104153385A CN 201410416297 A CN201410416297 A CN 201410416297A CN 104153385 A CN104153385 A CN 104153385A
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- mattress layer
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Abstract
The invention discloses a mattress layer. The mattress layer comprises a rigid mattress layer body and a soft mattress layer body located above the rigid mattress layer body. Due to the fact that the mattress layer comprises the rigid mattress layer body and the soft mattress layer body, composite foundation pile soil is integrated through the lower rigid mattress layer body, the joint bearing capacity of the pile soil can be brought into better play, rigid contact between a reinforced concrete foundation and pile bodies and rigid contact between the reinforced concrete foundation and the rigid mattress layer body can be avoided through the upper soft mattress layer body, a composite foundation has the better buffering and vibration absorption effect, and deformation compatibility of the composite foundation pile soil can be ensured through the soft mattress layer body. Meanwhile, a hydraulic channel can be formed through the soft mattress layer body, so that the composite foundation is softened, the rigid mattress layer body can seal the hydraulic channel, and accumulated water is prevented from permeating the soil among piles. Therefore, the problem that an existing mattress layer is single in function is solved. The invention further discloses the composite foundation comprising the mattress layer and a construction method of forming the composite foundation.
Description
Technical field
The present invention relates to technical field of building construction, particularly a kind of mattress layer.Also relate to a kind of composite foundation that comprises above-mentioned mattress layer.Meanwhile, also relate to a kind of construction method that is used to form above-mentioned composite foundation.
Background technology
Mattress layer is the bed course that is arranged at the pile body top of compound base, mainly plays and regulates the native loading sharing of stake, reduces foundation bed stress and concentrates, and coordinates the effect of stake soil distortion.
Existing mattress layer generally only adopts rubble or dirt mattress layer, i.e. flexible mattress layer; Or only adopt plain concrete mattress layer, i.e. rigidity mattress layer.In some cases, only adopt flexible mattress layer cannot bring into play in advance the supporting capacity of pile body, and only adopt rigidity mattress layer to play, coordinate the effect that stake soil is out of shape, the bearing capacity of inter-pile soil is difficult to be not fully exerted.
In sum, how to solve the single problem of existing mattress layer effect, become those skilled in the art's problem demanding prompt solution.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of mattress layer, to solve the single problem of mattress layer effect.
Second object of the present invention is to provide a kind of composite foundation that comprises above-mentioned mattress layer.
The 3rd object of the present invention is to provide a kind of construction method that is used to form above-mentioned mattress layer composite foundation.
For achieving the above object, the invention provides following technical scheme:
A mattress layer, comprises flexible mattress layer and rigidity mattress layer, and described flexible mattress layer is positioned at the top of described rigidity mattress layer.
Preferably, in above-mentioned mattress layer, described rigidity mattress layer is plain concrete sealing bed course.
Preferably, in above-mentioned mattress layer, described flexible mattress layer is sand－stone cushion, broken stone cushion layer or dirt mattress layer.
Preferably, in above-mentioned mattress layer, the thickness of described mattress layer is 20cm～60cm.
Preferably, in above-mentioned mattress layer, the thickness of described rigidity mattress layer is 10cm～30cm, and the thickness of described flexible mattress layer is 10cm～30cm.
The present invention also provides a kind of composite foundation, comprises reinforced concrete foundation, mattress layer and pile body, and described mattress layer is the mattress layer as described in above any one, and described reinforced concrete foundation is positioned at the top of described flexible mattress layer.
Preferably, in above-mentioned mattress layer composite foundation, described rigidity mattress layer is filled out and is enclosed between described pile body, and the bottom of described flexible mattress layer is inserted at the top of described pile body.
The present invention also provides a kind of construction method of composite foundation, for building the composite foundation as described in above any one, comprises the following steps:
After the pile body construction of S1, composite foundation, between pile body, build rigidity mattress layer, and vibration compacting is to design thickness;
S2, on described rigidity mattress layer and described pile body, lay flexible mattress layer, and be densified to design thickness.
Preferably, in the construction method of above-mentioned composite foundation, the flexible mattress layer of laying on described rigidity mattress layer and pile body in described step S2 adopts layering to lay the also method of compaction in layers.
Preferably, in the construction method of above-mentioned composite foundation, every layer of laying depth that the described layering in described step S2 is laid is 8cm～12cm.
Compared with prior art, the invention has the beneficial effects as follows:
Mattress layer provided by the invention comprises rigidity mattress layer and flexible mattress layer, rigidity mattress layer by lower floor becomes one compound foundation pile soil, can bring into play better the common bearing capacity ability of stake soil, on rigidity mattress layer, lay flexible mattress layer, can avoid reinforced concrete foundation to contact with the rigid of rigidity mattress layer with pile body, make composite foundation there is good buffering absorbing effect, and flexible mattress layer can guarantee the compatibility of deformation of compound foundation pile soil, soil bearing capacity between compound foundation pile is not fully exerted.Meanwhile, flexible mattress layer can form water passage, thus softening composite foundation, and rigidity mattress layer can seal water passage, avoids ponding to penetrate in inter-pile soil.Thereby the single problem of existing mattress layer effect solving.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or scheme of the prior art, to be briefly described describing the accompanying drawing of required use in embodiment or prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those skilled in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structural representation of a kind of composite foundation that Fig. 1 provides for the embodiment of the present invention.
In above-mentioned Fig. 1, rigidity mattress layer 1, flexible mattress layer 2, pile body 3, inter-pile soil 4, reinforced concrete foundation 5.
The specific embodiment
Core of the present invention has been to provide a kind of mattress layer, solves the single problem of existing mattress layer effect.
The present invention also provides a kind of composite foundation that comprises above-mentioned mattress layer, and stake, the common carrying of soil are not fully exerted.
The present invention also provides a kind of construction method that is used to form above-mentioned composite foundation.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiment.Based on embodiments of the invention, all other embodiment that those of ordinary skills obtain under the prerequisite of not making creative work, belong to the scope of protection of the invention.
Please refer to Fig. 1, the structural representation of a kind of composite foundation that Fig. 1 provides for the embodiment of the present invention.
The embodiment of the present invention provides a kind of mattress layer, comprises flexible mattress layer 1 and rigidity mattress layer 2, and flexible mattress layer 1 is positioned at the top of rigidity mattress layer 2.Mattress layer in the present invention combines the advantage of flexible mattress layer 1 and rigidity mattress layer 2, rigidity mattress layer 2 by lower floor becomes one compound foundation pile soil, can bring into play better the common bearing capacity ability of stake soil, on rigidity mattress layer 2, lay flexible mattress layer 1, can avoid reinforced concrete foundation 5 to contact with the rigid of rigidity mattress layer 2 with pile body 3, make composite foundation there is good buffering absorbing effect, and flexible mattress layer 1 can guarantee the compatibility of deformation of compound foundation pile soil, soil bearing capacity between compound foundation pile is not fully exerted.Meanwhile, flexible mattress layer 1 can form water passage, thus softening composite foundation, and rigidity mattress layer 2 can seal water passage, avoids ponding to penetrate in inter-pile soil.Thereby the single problem of existing mattress layer effect solving.
Further optimize, the rigidity mattress layer 2 in the present embodiment, for plain concrete sealing bed course, can also adopt other material with rigidity to obtain rigidity mattress layer 2 certainly.
Flexible mattress layer 1 is optimized, and the flexible mattress layer 1 in the present embodiment is sand－stone cushion, broken stone cushion layer or dirt mattress layer.Certainly, also can adopt sandstone, slag etc. as the material of flexible mattress layer 1.
Preferably, the thickness of the mattress layer in the present embodiment is 20cm～60cm, more preferably 20cm～50cm.The too thick effect that can not bring into play pile body 3 of mattress layer, too thin bearing capacity too concentrates on pile body 3, therefore, adopts size of the present invention can make mattress layer performance effect preferably, makes the common carrying of stake and soil.Certainly, according to the soil layer situation of actual construction plant, determine the thickness of mattress layer, be not limited to above-mentioned size range.
As optimization, the thickness of the rigidity mattress layer 2 in the present embodiment is 10cm～30cm, and the thickness of flexible mattress layer 1 is 10cm～30cm.Rigidity mattress layer 2 is all determined according to the soil layer situation of actual construction plant with the thickness of flexible mattress layer 1, is not limited to above-mentioned size range.
The embodiment of the present invention also provides a kind of composite foundation, comprise reinforced concrete foundation 5, mattress layer and pile body 3, mattress layer is above all embodiment and the described mattress layer of technical scheme, mattress layer is laid on the top of pile body 3, reinforced concrete foundation 5 is laid on flexible mattress layer top, play and regulate the native loading sharing of stake, reduce foundation bed stress and concentrate, coordinate the effect of the distortion of stake soil, buffering absorbing.Owing to having adopted the mattress layer of rigidity mattress layer 2 and 1 combination of flexible mattress layer, therefore, can either give full play to the collaborative carrying effect of stake soil, the while can be coordinated the native distortion of stake, be improved the buffering absorbing performance of composite foundation.
Further optimize composite foundation, rigidity mattress layer 2 in the present embodiment is filled out and is enclosed between pile body 3, the bottom of flexible mattress layer 1 is inserted at the top of pile body 3, by pile body 3 tops, thrust flexible mattress layer 1, flexible mattress layer 1 is deformed, realize the object of coordinating the distortion of stake soil, inter-pile soil 4 supporting capacitys are not fully exerted.
The embodiment of the present invention also provides a kind of construction method of composite foundation, for building the described composite foundation of above embodiment and technical scheme, comprises the following steps:
After pile body 3 constructions of step S1, composite foundation, between pile body, build rigidity mattress layer 2, and vibration compacting is to design thickness.Normally between pile body 3, build plain concrete, then plain concrete is vibrated, make it closely knit, control temperature and the speed of building therebetween.At pile body 3 tops.
Step S2, on rigidity mattress layer 2, lay flexible mattress layer 1, and be densified to design thickness, obtain flexible mattress layer 1.Normally cobble, rubble, dirt or slag are laid on to rigidity mattress layer 2 and pile body 3 tops, then utilize machinery back and forth to roll, control the speed and strength rolling therebetween well.
Step S3, on flexible mattress layer 1, reinforced concrete foundation 5 is set, completes composite foundation.
The composite foundation obtaining by the method, has flexible mattress layer 1 and rigidity mattress layer 2, combine the advantage of two kinds of mattress layers, and technique is simple, and stake earth cooperation carrying effect and coordination stake soil distortion function are remarkable, easy to utilize.
Construction method to composite foundation is optimized, the flexible mattress layer 1 of laying at rigidity mattress layer 2 and pile body 3 tops in step S2 adopts layering to lay and the method for compaction in layers, successively lay, the complete one deck of every laying, facility rolls processing repeatedly with machinery, until flexible mattress layer 1 reaches design thickness.
Further, every layer of laying depth that the layering in the step S2 in the present embodiment is laid is 8cm～12cm, and more preferably 10cm, carries out laying and the compacting of corresponding number of times according to the flexible mattress layer 1 of different-thickness.Certainly, the thickness of every layer of laying is not limited to above-mentioned size range.
In this manual, each embodiment adopts the mode of going forward one by one to describe, and each embodiment stresses is the difference with other embodiment, between each embodiment identical similar part mutually referring to.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the present invention.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a mattress layer, is characterized in that, comprises flexible mattress layer (1) and rigidity mattress layer (2), and described flexible mattress layer (1) is positioned at the top of described rigidity mattress layer (2).
2. mattress layer according to claim 1, is characterized in that, described rigidity mattress layer (2) is plain concrete sealing bed course.
3. mattress layer according to claim 1, is characterized in that, described flexible mattress layer (1) is sand－stone cushion, broken stone cushion layer or dirt mattress layer.
4. mattress layer according to claim 1, is characterized in that, the thickness of described mattress layer is 20cm～60cm.
5. mattress layer according to claim 4, is characterized in that, the thickness of described rigidity mattress layer (2) is 10cm～30cm, and the thickness of described flexible mattress layer (1) is 10cm～30cm.
6. a composite foundation, comprise reinforced concrete foundation (5), mattress layer and pile body (3), it is characterized in that, described mattress layer is the mattress layer as described in claim 1-5 any one, and described reinforced concrete foundation (5) is positioned at the top of described flexible mattress layer (1).
7. mattress layer composite foundation according to claim 6, is characterized in that, described rigidity mattress layer is filled out and is enclosed between described pile body (3), and the bottom of described flexible mattress layer (1) is inserted at the top of described pile body (3).
8. a construction method for composite foundation, for building the composite foundation as described in claim 6 and 7 any one, is characterized in that, comprises the following steps:
After the pile body of S1, composite foundation (3) construction, between pile body (3), build rigidity mattress layer (2), and vibration compacting is to design thickness;
S2, lay flexible mattress layer (1) described rigidity mattress layer (2) and described pile body (3) are upper, and be densified to design thickness.
9. the construction method of composite foundation according to claim 8, is characterized in that, the method in described rigidity mattress layer (2) and pile body (3) the flexible mattress layer of upper laying (1) employing layering laying compaction in layers in described step S2.
10. the construction method of composite foundation according to claim 9, is characterized in that, every layer of laying depth that the described layering in described step S2 is laid is 8cm～12cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410416297.XA CN104153385A (en) | 2014-08-22 | 2014-08-22 | Mattress layer, composite foundation and construction method for composite foundation |
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| CN201410416297.XA CN104153385A (en) | 2014-08-22 | 2014-08-22 | Mattress layer, composite foundation and construction method for composite foundation |
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| CN104153385A true CN104153385A (en) | 2014-11-19 |
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| CN201410416297.XA Pending CN104153385A (en) | 2014-08-22 | 2014-08-22 | Mattress layer, composite foundation and construction method for composite foundation |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104652462A (en) * | 2015-01-27 | 2015-05-27 | 江苏省建筑设计研究院有限公司 | Building composite foundation pile top pre-piercing mattress layer |
| CN108130826A (en) * | 2018-01-18 | 2018-06-08 | 中铁二院工程集团有限责任公司 | A kind of karst railway bed substrate antidumping foundation reinforcing structure |
| CN111705826A (en) * | 2020-07-01 | 2020-09-25 | 吉林建筑科技学院 | Civil engineering foundation water stopping method |
| CN114960610A (en) * | 2022-04-25 | 2022-08-30 | 三明学院 | Composite foundation of single-component geopolymer reinforced soil body and construction method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108130826A (en) * | 2018-01-18 | 2018-06-08 | 中铁二院工程集团有限责任公司 | A kind of karst railway bed substrate antidumping foundation reinforcing structure |
| CN111705826A (en) * | 2020-07-01 | 2020-09-25 | 吉林建筑科技学院 | Civil engineering foundation water stopping method |
| CN114960610A (en) * | 2022-04-25 | 2022-08-30 | 三明学院 | Composite foundation of single-component geopolymer reinforced soil body and construction method thereof |
| CN114960610B (en) * | 2022-04-25 | 2024-03-26 | 三明学院 | Composite foundation for reinforcing soil body by monocomponent geopolymer and construction method thereof |
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Application publication date: 20141119 |
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