CN103266798A - Connecting structure of circular coal bunker coal retaining wall and coal piling area raft foundation and construction method thereof - Google Patents
Connecting structure of circular coal bunker coal retaining wall and coal piling area raft foundation and construction method thereof Download PDFInfo
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- CN103266798A CN103266798A CN2013102394978A CN201310239497A CN103266798A CN 103266798 A CN103266798 A CN 103266798A CN 2013102394978 A CN2013102394978 A CN 2013102394978A CN 201310239497 A CN201310239497 A CN 201310239497A CN 103266798 A CN103266798 A CN 103266798A
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- 239000003245 coal Substances 0.000 title claims abstract description 135
- 238000010276 construction Methods 0.000 title claims abstract description 14
- 230000003014 reinforcing effect Effects 0.000 claims description 14
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 239000012528 membrane Substances 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 7
- 230000002787 reinforcement Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000205 computational method Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The invention discloses a connecting structure of a circular coal bunker coal retaining wall and a coal piling area raft foundation and a construction method of the connecting structure. A right-angle convex ring table is arranged at the outer ring of a ring-shaped coal retaining wall foundation; the coal piling area raft foundation comprises a raft area and an embedding connection part, wherein the embedding connection part of the coal piling area raft foundation extends to the ring-shaped coal retaining wall and is embedded in and connected with the ring-shaped coal retaining wall foundation; the lower side of the embedding connection part of the coal piling area raft foundation is provided with a concave ring groove; the size and the shape of the concave ring groove are matched with those of the right-angle convex ring table; the right-angle convex ring table and the concave ring groove are matched and connected with each other in an embedded manner; and therefore, a node-type shared ring-shaped coal retaining wall foundation horizontal thrust embedding connection structure can be formed. According to the connecting structure the coal piling area raft foundation and the ring-shaped coal retaining wall foundation are connected together in an embedded manner, and the horizontal thrust of the ring-shaped coal retaining wall foundation is effectively shared by foundation group piles of the coal piling area raft foundation, so that the integrity of the structure is improved, the number of the foundation piles of the ring-shaped coal retaining wall foundation can be reduced, and the construction cost is lowered.
Description
Technical field
The present invention relates to syndeton and the job practices of a kind of circular coal storehouse coal-stopping wall and coal piling district raft foundation.The field of constructing that belongs to coal yard.
Background technology
Circular coal store is mainly adopted in various coal storages places such as present power plant or colliery, and its basic plane is arranged as shown in Figure 1.Circular coal store top mainly is made of ring-type coal-stopping wall and the net shell in circular coal storehouse, and basis, circular coal storehouse is made of ring-type coal-stopping wall basis and coal piling district raft foundation two parts.It is the suffered external force of the deadweight of horizontal thrust, net shell and ring-type coal-stopping wall and net shell as wind load, earthquake that the load that bear on ring-type coal-stopping wall basis has the dump lateral pressure; Coal piling district raft foundation mainly bears the coal piling vertical pressure.
The technical scheme on existing basis, circular coal storehouse has two kinds, and first kind of technical scheme separated ring-type coal-stopping wall basis and be not connected with coal piling district raft foundation, as shown in Figure 2.The weak point of this technical scheme is: the ring-type coal-stopping wall bears the lateral pressure of dump alone, for resisting its horizontal thrust, the quantity of foundation pile is many under the ring-type coal-stopping wall basis, the quantity of foundation pile is controlled by horizontal force mainly, and the raft sheet pile under the coal piling district raft foundation only bears the vertical pressure of dump, and the horizontal bearing capacity of raft sheet pile is not utilized, and causes " waste " of the horizontal bearing capacity of the raft sheet pile under the coal piling district raft foundation, thereby cause the cost height of Foundation Design, uneconomical.
Second kind of technology case built the ring-type coal-stopping wall basis in circular coal storehouse with coal piling district raft foundation be an integral body, as shown in Figure 3.The weak point of this technical scheme is: the moment of flexure that the lateral pressure of dump produces on ring-type coal-stopping wall and ring-type coal-stopping wall basis thereof is delivered to the raft plate of coal piling district raft foundation, cause coal piling district raft foundation except bearing self moment of flexure, also must bear the moment of flexure that the transmission of ring-type coal-stopping wall comes, therefore the thickness of coal piling district raft foundation needs to increase, coal piling district raft foundation is with the thickness of junction, ring-type coal-stopping wall basis even will just can satisfy requirement for bearing capacity with ring-type coal-stopping wall basis stack pile, but causes the engineering quantity of raft foundation to increase.
Also do not solve the horizontal bearing capacity of a basic clump of piles that how to take full advantage of coal piling district raft foundation at present, thereby reduce the technical scheme that circular coal storehouse Foundation Design cost becomes.
Summary of the invention
One of purpose of the present invention, be in order to overcome the existing high defective of circular coal storehouse foundation cost, the syndeton of a kind of circular coal storehouse coal-stopping wall and coal piling district raft foundation is provided, this syndeton takes full advantage of the horizontal bearing capacity of a coal piling district raft foundation clump of piles, has the construction costs that reduces basis, circular coal storehouse, the characteristics of good economy performance.
Two of purpose of the present invention is that this method is simple, and is workable for the job practices of the syndeton that circular coal storehouse coal-stopping wall and coal piling district raft foundation are provided.
One of purpose of the present invention can be achieved through the following technical solutions:
The syndeton of circular coal storehouse coal-stopping wall and coal piling district raft foundation; comprise the ring-type coal-stopping wall; ring-type coal-stopping wall basis and coal piling district raft foundation; it is characterized in that: the interior ring place on ring-type coal-stopping wall basis is provided with right angle bulge loop platform; coal piling district raft foundation comprises raft plate district and interlocking portion; the interlocking portion of coal piling district raft foundation extends to the ring-type coal-stopping wall and rabbets with ring-type coal-stopping wall basis; interlocking subordinate side at coal piling district raft foundation is provided with concave ring groove; the size of this concave ring groove; shape and aforementioned right angle bulge loop platform coincide; by concave ring groove and the identical interlocking of right angle bulge loop platform, form the joint construction that node type is shared ring-type coal-stopping wall foundation level thrust.
One of purpose of the present invention can also be achieved through the following technical solutions:
Further scheme of the present invention: be provided with separation membrane between ring-type coal-stopping wall basis and the coal piling district raft foundation, ring-type coal-stopping wall basis is connected without reinforcing bar with coal piling district raft foundation.Separation membrane is used for isolating both unlikely effects that make both adhesions.
Further scheme of the present invention: the bottom, coal piling district at coal piling district raft foundation is provided with some raft sheet piles, shares the horizontal thrust on ring-type coal-stopping wall basis by the basic clump of piles that described raft sheet pile constitutes, and the foundation pile quantity on ring-type coal-stopping wall basis is reduced.
Further scheme of the present invention: constitute " hook " type joint construction by right angle bulge loop platform and concave ring groove.
Two of purpose of the present invention can be achieved through the following technical solutions:
The job practices of the syndeton of circular coal storehouse coal-stopping wall and coal piling district raft foundation is characterized in that:
1) builds ring-type coal-stopping wall basis, at first lay ring-type coal-stopping wall reinforcement foundation, when laying ring-type coal-stopping wall reinforcement foundation, form the reinforcing bar projection of the end on ring-type coal-stopping wall basis, form right angle bulge loop platform behind the concreting;
2) build coal piling district raft foundation, after the concrete setting intensity for the treatment of ring-type coal-stopping wall basis reaches 50%～80%, lay coal piling district raft foundation reinforcing bar, when laying coal piling district raft foundation reinforcing bar, form a concave ring groove structure, the concave ring groove that the right angle bulge loop platform on formation and ring-type coal-stopping wall basis matches and rabbets behind the concreting;
3) ring-type coal-stopping wall basis and coal piling district raft foundation solidify the syndeton that back formation node type is shared ring-type coal-stopping wall foundation level thrust fully.
Further scheme of the present invention: be provided with separation membrane between ring-type coal-stopping wall basis and the coal piling district raft foundation, ring-type coal-stopping wall basis is connected without reinforcing bar with coal piling district raft foundation.Separation membrane is isolated both unlikely effects that make both adhesions except having, and can also make ring-type coal-stopping wall basis become the bed die of coal piling district raft foundation, with convenient construction.
The present invention has following outstanding beneficial effect:
1, the present invention is provided with right angle bulge loop platform by the outer shroud place on ring-type coal-stopping wall basis; the interlocking portion of coal piling district raft foundation extends to the ring-type coal-stopping wall and rabbets with ring-type coal-stopping wall basis; form node type and share the joint construction of ring-type coal-stopping wall foundation level thrust, the horizontal thrust that ring-type coal-stopping wall basis is born is delivered to raft foundation.The present invention has effectively utilized the basic clump of piles of coal piling district raft foundation and has shared horizontal force, has improved the globality of structure, reduces the horizontal force that the foundation pile on the internal force of ring-type coal-stopping wall and ring-type coal-stopping wall basis bears.With respect to prior art scheme one, make the engineering quantity on ring-type coal-stopping wall basis and the quantity of foundation pile all can reduce 1/3rd, with respect to prior art scheme two, discharged the moment of flexure transmission on coal piling district raft foundation and ring-type coal-stopping wall basis, reduce the raft plate thickness requirement to coal piling district raft foundation, thereby reduced construction costs.
2, the present invention the time has fully taken into account coal piling district and ring-type coal-stopping wall in the difference of aspects such as form of structure, safety classes of structure, load type, load size in construction, when allowing the two differential deformation and sedimentation, can also transmit horizontal force according to predetermined target.
3, this job practices of the present invention is simple, and is workable, can effectively utilize horizontal bearing capacity and the good economy performance of a coal piling district raft foundation clump of piles.
Description of drawings
Fig. 1 is the plan view from above on existing basis, circular coal storehouse.
Fig. 2 is that existing ring-type coal-stopping wall basis separates disjunct structural representation with coal piling district raft foundation.
Fig. 3 is that basic the building with coal piling district raft foundation of existing ring-type coal-stopping wall is holistic structural representation.
Fig. 4 is structural representation of the present invention.
Fig. 5 is the sectional view of ring-type coal-stopping wall of the present invention basis and raft foundation coupling part, coal piling district.
The specific embodiment
The present invention is further illustrated below in conjunction with accompanying drawing.
Specific embodiment 1:
The syndeton of circular coal storehouse coal-stopping wall as shown in Figure 4 and Figure 5 and coal piling district raft foundation; comprise ring-type coal-stopping wall 3; ring-type coal-stopping wall basis 1 and coal piling district raft foundation 2; be provided with right angle bulge loop platform 1-1 at the interior ring place on ring-type coal-stopping wall basis 1; coal piling district raft foundation 2 comprises raft plate district 2-1 and interlocking portion; the interlocking portion of coal piling district raft foundation 2 extends to ring-type coal-stopping wall 3 and rabbets with ring-type coal-stopping wall basis 1; interlocking subordinate side at coal piling district raft foundation 2 is provided with concave ring groove 2-2; the size of this concave ring groove 2-2; shape and aforementioned right angle bulge loop platform 1-1 coincide; by concave ring groove 2-2 and the identical interlocking of right angle bulge loop platform 1-1; right angle bulge loop platform 1-1 and concave ring groove 2-2 constitute " hook " type joint construction, form the joint construction that node type is shared ring-type coal-stopping wall basis 1 horizontal thrust.Junction on coal piling district raft foundation 2 interlocking portions and ring-type coal-stopping wall basis 1 is provided with rubble concrete 4; be provided with some raft sheet pile 2-3 in the coal piling district of coal piling district raft foundation 2 2-1 bottom; share the horizontal thrust on ring-type coal-stopping wall basis 1 by the basic clump of piles that described raft sheet pile 2-3 constitutes, the foundation pile 1-2 quantity on ring-type coal-stopping wall basis 1 is reduced.
The job practices of the syndeton of circular coal storehouse coal-stopping wall and coal piling district raft foundation:
Before building ring-type coal-stopping wall basis 1 and building coal piling district raft foundation 2, calculate shearing resistance and the tensile strength near the cross section concave ring groove 2-2 of the shearing resistance in bulge loop platform 1-1 cross section, right angle and coal piling district raft foundation 2 earlier, thereby determine the big or small thickness of right angle bulge loop platform 1-1 and concave ring groove 2-2.These computational methods adopt existing force analysis method commonly used.
1) builds ring-type coal-stopping wall basis 1, at first lay ring-type coal-stopping wall reinforcement foundation, when laying ring-type coal-stopping wall reinforcement foundation, form the reinforcing bar projection of the end on ring-type coal-stopping wall basis 1, form right angle bulge loop platform 1-1 behind the concreting;
2) build coal piling district raft foundation 2, after the concrete setting intensity for the treatment of ring-type coal-stopping wall basis 1 reaches 50%, lay coal piling district raft foundation reinforcing bar, when laying coal piling district raft foundation reinforcing bar, form a concave ring groove structure, the concave ring groove 2-2 that the right angle bulge loop platform 1-1 on formation and ring-type coal-stopping wall basis 1 matches and rabbets behind the concreting, be provided with the PE separation membrane between ring-type coal-stopping wall basis 1 and the coal piling district raft foundation 2, ring-type coal-stopping wall basic 1 and coal piling district raft foundation 2 are connected without reinforcing bar;
3) ring-type coal-stopping wall basis 1 and coal piling district raft foundation 2 solidify the syndeton that back formation node type is shared ring-type coal-stopping wall basis 1 horizontal thrust fully.Junction on coal piling district raft foundation 2 interlocking portions and ring-type coal-stopping wall basis 1 is provided with rubble concrete 4.
Specific embodiment 2:
The characteristics of present embodiment are: in the job practices of the syndeton of circular coal storehouse coal-stopping wall and coal piling district raft foundation, after the concrete strength for the treatment of ring-type coal-stopping wall basis 1 reaches 70%, and then build coal piling district raft foundation 2, other characteristics are identical with specific embodiment 1.
Specific embodiment 3:
The characteristics of present embodiment are: in the job practices of the syndeton of circular coal storehouse coal-stopping wall and coal piling district raft foundation, after the concrete strength for the treatment of ring-type coal-stopping wall basis 1 reaches 80%, and then build coal piling district raft foundation 2, other characteristics are identical with specific embodiment 1.
The present invention adopts node type to connect ring-type coal-stopping wall basis 1 and coal piling district raft foundation 2 is halved together (snapping mutually), and it acts on similar post bracket, and fastening mutually reaches hinged effect.This node type that invention is adopted connects the horizontal bearing capacity of a basic clump of piles that has taken full advantage of raft sheet pile 2-3 formation, thereby makes the engineering quantity on ring-type coal-stopping wall basis 1 and foundation pile 1-2 quantity all reduce 1/3rd; And two ring-type coal-stopping walls basis 1 and coal piling district raft foundation 2 Bian are with rabbeting to get up, form hinged effect mutually, the moment of flexure that the dump lateral pressure is produced on ring-type coal-stopping wall 3 and ring-type coal-stopping wall basis 1 thereof is passed on the coal piling district raft foundation 2, so the thickness of coal piling district raft foundation 2 also need not increase.Effectively inherit the advantage of prior art scheme one, prior art scheme two, but abandoned its shortcoming, greatly reduced the engineering quantity cost.
Above embodiment is preferred implementation of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from the change done under spiritual essence of the present invention and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (6)
1. the syndeton of circular coal storehouse coal-stopping wall and coal piling district raft foundation; comprise ring-type coal-stopping wall (3); ring-type coal-stopping wall basis (1) and coal piling district raft foundation (2); it is characterized in that: the interior ring place on ring-type coal-stopping wall basis (1) is provided with right angle bulge loop platform (1-1); coal piling district raft foundation (2) comprises raft plate district (2-1) and interlocking portion; the interlocking portion of coal piling district raft foundation (2) extends to ring-type coal-stopping wall (3) and rabbets with ring-type coal-stopping wall basis (1); interlocking subordinate side at coal piling district raft foundation (2) is provided with concave ring groove (2-2); the size of this concave ring groove (2-2); shape and aforementioned right angle bulge loop platform (1-1) coincide; by the identical interlocking of concave ring groove (2-2) and right angle bulge loop platform (1-1), form the joint construction that node type is shared ring-type coal-stopping wall basis (1) horizontal thrust.
2. the syndeton of circular coal storehouse coal-stopping wall according to claim 1 and coal piling district raft foundation, it is characterized in that: be provided with separation membrane between ring-type coal-stopping wall basis (1) and the coal piling district raft foundation (2), ring-type coal-stopping wall basis (1) is connected without reinforcing bar with coal piling district raft foundation (2).
3. the syndeton of circular coal storehouse coal-stopping wall according to claim 1 and 2 and coal piling district raft foundation; it is characterized in that: be provided with some raft sheet piles (2-3) in bottom, the coal piling district of coal piling district raft foundation (2) (2-1); share the horizontal thrust on ring-type coal-stopping wall basis (1) by the basic clump of piles that described raft sheet pile (2-3) constitutes, foundation pile (1-2) quantity on ring-type coal-stopping wall basis (1) is reduced.
4. the syndeton of circular coal storehouse coal-stopping wall according to claim 1 and 2 and coal piling district raft foundation is characterized in that: constitute " hook " type joint construction by right angle bulge loop platform (1-1) and concave ring groove (2-2).
5. the job practices of the syndeton of circular coal storehouse coal-stopping wall and coal piling district raft foundation is characterized in that:
1) builds ring-type coal-stopping wall basis (1), at first lay ring-type coal-stopping wall reinforcement foundation, when laying ring-type coal-stopping wall reinforcement foundation, form the reinforcing bar projection of the end on ring-type coal-stopping wall basis (1), form right angle bulge loop platform (1-1) behind the concreting;
2) build coal piling district raft foundation (2), after the concrete setting intensity for the treatment of ring-type coal-stopping wall basis (1) reaches 50%～80%, lay coal piling district raft foundation reinforcing bar, when laying coal piling district raft foundation reinforcing bar, form a concave ring groove structure, the concave ring groove (2-2) that right angle bulge loop platform (1-1) on formation and ring-type coal-stopping wall basis (1) matches and rabbets behind the concreting;
3) ring-type coal-stopping wall basis (1) and coal piling district raft foundation (2) solidify the syndeton that back formation node type is shared ring-type coal-stopping wall basis (1) horizontal thrust fully.
6. the job practices of the syndeton of circular coal storehouse coal-stopping wall according to claim 5 and coal piling district raft foundation, it is characterized in that: coal piling district raft foundation (2) is preceding building, between ring-type coal-stopping wall basis (1) and the coal piling district raft foundation (2) separation membrane is set, the reinforcing bar that both need not be any is as connection.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310239497.8A CN103266798B (en) | 2013-06-17 | 2013-06-17 | The syndeton of coal bunker coal-stopping wall and coal piling district raft foundation and construction method |
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| CN201310239497.8A CN103266798B (en) | 2013-06-17 | 2013-06-17 | The syndeton of coal bunker coal-stopping wall and coal piling district raft foundation and construction method |
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| CN103266798A true CN103266798A (en) | 2013-08-28 |
| CN103266798B CN103266798B (en) | 2015-12-09 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257058A (en) * | 2015-09-28 | 2016-01-20 | 中国能源建设集团湖南省电力设计院有限公司 | Coal retaining wall for circular coal yards and method for constructing coal retaining wall |
| CN114396073A (en) * | 2021-12-06 | 2022-04-26 | 中国能源建设集团广东省电力设计研究院有限公司 | Coal yard foundation structure and construction method thereof, and coal yard structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005133402A (en) * | 2003-10-30 | 2005-05-26 | Sekisui House Ltd | Construction method of foundation or retaining wall |
| CN202830955U (en) * | 2012-08-23 | 2013-03-27 | 江苏建华管桩有限公司 | Bearing platform |
| CN203347316U (en) * | 2013-06-17 | 2013-12-18 | 中国能源建设集团广东省电力设计研究院 | Connecting structure for coal bulkhead and coal piling area raft foundation of round coal bunker |
-
2013
- 2013-06-17 CN CN201310239497.8A patent/CN103266798B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005133402A (en) * | 2003-10-30 | 2005-05-26 | Sekisui House Ltd | Construction method of foundation or retaining wall |
| CN202830955U (en) * | 2012-08-23 | 2013-03-27 | 江苏建华管桩有限公司 | Bearing platform |
| CN203347316U (en) * | 2013-06-17 | 2013-12-18 | 中国能源建设集团广东省电力设计研究院 | Connecting structure for coal bulkhead and coal piling area raft foundation of round coal bunker |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257058A (en) * | 2015-09-28 | 2016-01-20 | 中国能源建设集团湖南省电力设计院有限公司 | Coal retaining wall for circular coal yards and method for constructing coal retaining wall |
| CN114396073A (en) * | 2021-12-06 | 2022-04-26 | 中国能源建设集团广东省电力设计研究院有限公司 | Coal yard foundation structure and construction method thereof, and coal yard structure |
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| CN103266798B (en) | 2015-12-09 |
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