CN111501829A - Construction method of backfill type basement - Google Patents
Construction method of backfill type basement Download PDFInfo
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- CN111501829A CN111501829A CN202010357252.5A CN202010357252A CN111501829A CN 111501829 A CN111501829 A CN 111501829A CN 202010357252 A CN202010357252 A CN 202010357252A CN 111501829 A CN111501829 A CN 111501829A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/18—Making embankments, e.g. dikes, dams
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/0007—Base structures; Cellars
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/16—Structures made from masses, e.g. of concrete, cast or similarly formed in situ with or without making use of additional elements, such as permanent forms, substructures to be coated with load-bearing material
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/16—Structures made from masses, e.g. of concrete, cast or similarly formed in situ with or without making use of additional elements, such as permanent forms, substructures to be coated with load-bearing material
- E04B1/165—Structures made from masses, e.g. of concrete, cast or similarly formed in situ with or without making use of additional elements, such as permanent forms, substructures to be coated with load-bearing material with elongated load-supporting parts, cast in situ
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0045—Composites
Abstract
The invention provides a backfill type basement construction method, which comprises the following steps of firstly, carrying out basement wall construction, wherein the basement wall comprises a high-span area wall and a low-span area wall, the high-span area wall is constructed to the bottom position of a secondary beam of the high-span area, and the low-span area wall is constructed to the bottom position of a first-layer beam plate of the low-span area; then, earth in the internal space gap of the basement of the high-span region and earth in the internal space gap of the basement of the low-span region are backfilled to the bottom position of the secondary beam, and earth in the internal space gap of the basement of the low-span region is backfilled to the bottom position of the first-layer beam slab of the low-span region; then, a first-layer beam plate of the low-span region is poured, a primary beam and a secondary beam of the high-span region are constructed, and the primary beam and the secondary beam of the high-span region are constructed to the plate bottom position of the first-layer beam plate of the high-span region; and finally, erecting a plate bottom formwork of the first-layer beam plate in the high span region, binding reinforcing steel bars, and pouring the first-layer beam plate in the high span region.
Description
Technical Field
The invention relates to the technical field of constructional engineering, in particular to a construction method of a backfill type basement.
Background
According to the design standard requirement of foundation base, the basement should be set up to building height of over 28m, but because of the particularity of engineering situation, the basement of service function should not be set up to some buildings to the cost is also higher. The basement can be designed into a backfill type basement, and the conventional cross beam design has higher requirements on backfill and the construction of a beam plate of a first-layer structure, so that how to construct the backfill type basement is the key point of shallow foundation construction.
Disclosure of Invention
The invention provides a construction method of a backfill type basement, which solves the problems that excessive steel bars need to be reserved during the construction of a cross beam, secondary excavation is needed, a first-layer beam brick moulding bed is built and the like.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
a construction method of a backfill type basement comprises the following steps:
constructing a basement wall, wherein the basement wall comprises a high-span area wall and a low-span area wall, the high-span area wall is constructed to the position of a secondary beam bottom of the high-span area, and the low-span area wall is constructed to the position of a plate bottom of a first-layer beam plate of the low-span area;
backfilling earthwork of the internal space gap of the basement of the high-span region and earthwork of the internal space gap of the basement of the low-span region, wherein the earthwork of the internal space gap of the basement of the high-span region is backfilled to the bottom position of the secondary beam, and the earthwork of the internal space gap of the basement of the low-span region is backfilled to the bottom position of the first-layer beam slab of the low-span region;
pouring the first-layer beam slab of the low span region, constructing the primary and secondary beams of the high span region, and constructing the primary and secondary beams of the high span region to the slab bottom position of the first-layer beam slab of the high span region;
and erecting and binding steel bars of the bottom formwork of the first-layer beam slab in the high span region, and pouring the first-layer beam slab in the high span region.
The high-span region wall body comprises a high-span region inner wall and a high-span region outer wall arranged around the periphery of the high-span region inner wall.
The number of the high-span region outer walls is multiple, the high-span region outer walls are connected with one another to form a loop structure, and first stand columns are connected between the adjacent high-span region outer walls.
The number of the high cross regional inner walls is multiple, multiple high cross regional inner walls are mutually crossed and arranged in a grid shape, the cross positions of the high cross regional inner walls are connected with second stand columns, two ends of each high cross regional inner wall are connected to the high cross regional outer walls in opposite positions, and third stand columns are connected between the high cross regional inner walls and the high cross regional outer walls.
The low-span region wall body comprises a low-span region inner wall and a low-span region outer wall arranged around the periphery of the low-span region inner wall.
The number of the low cross-region outer walls is multiple, the low cross-region outer walls are connected with one another to form a loop structure, and a fourth stand column is connected between every two adjacent low cross-region outer walls.
The number of the low cross-region inner walls is multiple, the multiple low cross-region inner walls are mutually crossed and arranged in a grid shape, the cross parts of the low cross-region inner walls are connected with fifth stand columns, two ends of each low cross-region inner wall are connected to the low cross-region outer walls opposite in position, and sixth stand columns are connected between the low cross-region inner walls and the low cross-region outer walls.
The column feet of the first upright column, the second upright column, the third upright column, the fourth upright column, the fifth upright column and the sixth upright column are respectively connected with bearing platforms, and a foundation beam is connected between every two adjacent bearing platforms.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a construction method of a backfill type basement, wherein when earthwork is backfilled, earthwork of a space gap of the basement of a low-span region is backfilled to the plate bottom position of a corresponding first-layer beam plate of the low-span region, and earthwork of a space gap of a high-span region is backfilled to the position of a corresponding secondary beam bottom of the high-span region; and then, implementing subsequent construction of the primary and secondary beams and the residual section of the outer wall, pouring the residual section of the outer wall and the beams together when the primary and secondary beams in the high-span region and the low-span region are constructed, and reducing the connection of reinforcing steel bars without reserving redundant reinforcing steel bars when the primary and secondary beams in the high-span region and the low-span region are constructed.
Drawings
Fig. 1 is a schematic view of the first floor structure of a single backfill type basement in the backfill type basement construction method.
Fig. 2 is a schematic diagram of the construction of the external wall of the basement in the high-span area and the external wall of the basement in the low-span area according to the backfill type basement construction method.
Fig. 3 is a schematic diagram of the earth backfilling of the internal space gap of the high bay area basement and the earth backfilling of the internal space gap of the low bay area basement according to the construction method of the backfilled basement.
Fig. 4 is a schematic view of the construction of the first-floor beam slab of the high span region of the construction method of the backfill type basement.
Detailed Description
In the concrete implementation of the invention, the shallow foundation pit is dug to the depth of about 1.5-2.8 m, and according to the design specification of the foundation, the height of the ground structure of the shallow foundation exceeds 28m, and a basement needs to be arranged. Due to the particularity of the engineering, functional basements cannot be arranged in shallow foundation areas, high-low span backfill basements are arranged according to construction requirements, and requirements are made on construction difficulty due to the design of a backfill type semi-underground structure.
The construction method of the backfill type basement will be further explained with reference to the attached drawings in the embodiment of the invention.
As shown in fig. 1-4, a construction method for a backfill type basement includes the following specific construction steps:
step one, constructing a basement wall body, wherein the basement wall body comprises a high-span area wall body and a low-span area wall body, the high-span area wall body is constructed to the bottom position of a secondary beam 31 of the high-span area, and the low-span area wall body is constructed to the bottom position of a first-layer beam plate 41 of the low-span area.
And step two, backfilling earthwork of the internal space gap of the high-span region basement 3 and earthwork of the internal space gap of the low-span region basement 4, backfilling the earthwork of the internal space gap of the high-span region basement 3 to the position of the secondary beam bottom, and backfilling the earthwork of the internal space gap of the low-span region basement 4 to the position of the plate bottom of the first-layer beam plate 41 of the low-span region.
Wherein, the backfilling adopts 40 percent of coarse sand or gravel sand, 10 percent of melon seed slices and 50 percent of graded stones; the water content of the sand and stone material is 8-10 percent, and the mud content is less than 3 percent; the gravel backfill needs to be tamped layer by layer, the thickness of each layer of the virtual pavement is 250mm, the gravel is compacted 6-8 times by a flat plate vibrator or 3-4 times by a frog tamper, and the compaction coefficient is more than or equal to 0.97.
And step three, pouring the first-layer beam plate 41 in the low-span region, constructing the primary and secondary beams in the high-span region, and constructing the primary and secondary beams in the high-span region to the plate bottom position of the first-layer beam plate 32 in the high-span region.
And fourthly, erecting and binding the slab bottom formwork of the first-layer beam slab 32 in the high-span region, and pouring the first-layer beam slab 32 in the high-span region.
When the primary and secondary beams in the high-span area and the low-span area are constructed, the remaining section of the outer wall is poured together with the beams, redundant steel bars do not need to be reserved, and the quality problem of steel bar connection is reduced.
The high-span region wall body comprises a high-span region inner wall and a high-span region outer wall arranged around the periphery of the high-span region inner wall.
The number of high trans-regional outer walls is polylith, and polylith high trans-regional outer wall interconnect encloses into the structure of returning the form, is connected with first stand between the adjacent high trans-regional outer wall.
The regional interior wall's of high stride quantity is the polylith, and the regional interior wall intercrossing is latticed setting and the intersection is connected with the second stand is striden to the polylith height, and the regional exterior wall is striden in the relative height in position in both ends of each height of striding regional interior wall, and the regional interior wall is striden to the height and the height is striden and is connected with the third stand between the regional exterior wall.
The low-span region wall body comprises a low-span region inner wall and a low-span region outer wall which is arranged around the periphery of the low-span region inner wall.
The number of the low cross-regional outer walls is multiple, the multiple low cross-regional outer walls are connected with each other to form a clip structure, and a fourth stand column is connected between the adjacent low cross-regional outer walls.
The quantity of the low regional interior wall of striding is the polylith, and the polylith is low to stride regional interior wall intercrossing and be latticed setting and the intersection is connected with the fifth stand, and the both ends of the regional interior wall are connected in the relative low regional outer wall of striding in position to each low, and the regional interior wall is striden to the low height and is connected with the sixth stand between the regional outer wall of striding.
The column base of the first upright column, the second upright column, the third upright column, the fourth upright column, the fifth upright column and the sixth upright column is respectively connected with bearing platforms 1, a foundation beam 2 is connected between every two adjacent bearing platforms 1, the bearing platforms 1 are connection parts of piles and columns or piers, and the bearing platforms 1 are used for bearing upper structure loads.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a construction method of a backfill type basement, wherein when earthwork is backfilled, earthwork of a space gap of the basement of a low-span region is backfilled to the plate bottom position of a corresponding first-layer beam plate of the low-span region, and earthwork of a space gap of a high-span region is backfilled to the position of a corresponding secondary beam bottom of the high-span region; and then, implementing subsequent construction of the primary and secondary beams and the residual section of the outer wall, pouring the residual section of the outer wall and the beams together when the primary and secondary beams in the high-span region and the low-span region are constructed, and reducing the connection of reinforcing steel bars without reserving redundant reinforcing steel bars when the primary and secondary beams in the high-span region and the low-span region are constructed.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
It should be noted that the structures, ratios, sizes, and the like shown in the drawings attached to the present specification are only used for matching the disclosure of the present specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions of the present invention, so that the present invention has no technical essence, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention.
Claims (9)
1. A backfill type basement construction method is characterized by comprising the following steps:
constructing a basement wall, wherein the basement wall comprises a high-span area wall and a low-span area wall, the high-span area wall is constructed to the position of a secondary beam bottom of the high-span area, and the low-span area wall is constructed to the position of a plate bottom of a first-layer beam plate of the low-span area;
backfilling earthwork of the internal space gap of the basement of the high-span region and earthwork of the internal space gap of the basement of the low-span region, wherein the earthwork of the internal space gap of the basement of the high-span region is backfilled to the bottom position of the secondary beam, and the earthwork of the internal space gap of the basement of the low-span region is backfilled to the bottom position of the first-layer beam slab of the low-span region;
pouring the first-layer beam slab of the low span region, constructing the primary and secondary beams of the high span region, and constructing the primary and secondary beams of the high span region to the slab bottom position of the first-layer beam slab of the high span region;
and erecting and binding steel bars of the bottom formwork of the first-layer beam slab in the high span region, and pouring the first-layer beam slab in the high span region.
2. The construction method of the backfill type basement according to the claim 1, characterized in that: the high-span region wall body comprises a high-span region inner wall and a high-span region outer wall arranged around the periphery of the high-span region inner wall.
3. The construction method of the backfill type basement according to claim 2, characterized in that: the number of the high-span region outer walls is multiple, the high-span region outer walls are connected with one another to form a loop structure, and first stand columns are connected between the adjacent high-span region outer walls.
4. The construction method of the backfill type basement according to claim 3, characterized in that: the number of the high cross regional inner walls is multiple, multiple high cross regional inner walls are mutually crossed and arranged in a grid shape, the cross positions of the high cross regional inner walls are connected with second stand columns, two ends of each high cross regional inner wall are connected to the high cross regional outer walls in opposite positions, and third stand columns are connected between the high cross regional inner walls and the high cross regional outer walls.
5. The construction method of the backfill type basement according to claim 4, characterized in that: the low-span region wall body comprises a low-span region inner wall and a low-span region outer wall arranged around the periphery of the low-span region inner wall.
6. The construction method of the backfill type basement according to claim 5, characterized in that: the number of the low cross-region outer walls is multiple, the low cross-region outer walls are connected with one another to form a loop structure, and a fourth stand column is connected between every two adjacent low cross-region outer walls.
7. The construction method of the backfill type basement according to claim 6, characterized in that: the number of the low cross-region inner walls is multiple, the multiple low cross-region inner walls are mutually crossed and arranged in a grid shape, the cross parts of the low cross-region inner walls are connected with fifth stand columns, two ends of each low cross-region inner wall are connected to the low cross-region outer walls opposite in position, and sixth stand columns are connected between the low cross-region inner walls and the low cross-region outer walls.
8. The construction method of the backfill type basement according to claim 7, characterized in that: and column feet of the first column, the second column, the third column, the fourth column, the fifth column and the sixth column are respectively connected with a bearing platform.
9. The construction method of the backfill type basement according to claim 8, characterized in that: and a foundation beam is connected between the adjacent bearing platforms.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010357252.5A CN111501829B (en) | 2020-04-29 | 2020-04-29 | Construction method of backfill type basement |
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| CN202010357252.5A CN111501829B (en) | 2020-04-29 | 2020-04-29 | Construction method of backfill type basement |
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| CN111501829A true CN111501829A (en) | 2020-08-07 |
| CN111501829B CN111501829B (en) | 2021-08-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113482213A (en) * | 2021-06-25 | 2021-10-08 | 五冶集团上海有限公司 | Basement backfill soil layer structure floor slab construction method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011241608A (en) * | 2010-05-19 | 2011-12-01 | Keiichi Kato | Construction method of basement in existing house |
| KR101205783B1 (en) * | 2012-05-02 | 2012-11-28 | 현대산업개발 주식회사 | The complex execution method which dismantling work of existing underground structure and constructs of new building simultaneously |
| CN204081064U (en) * | 2014-07-31 | 2015-01-07 | 中建一局集团第三建筑有限公司 | A kind of basement sandwich |
| CN108149707A (en) * | 2017-12-07 | 2018-06-12 | 成都新艺置业有限公司 | A kind of basement building structure and its construction method |
| CN210421162U (en) * | 2019-07-09 | 2020-04-28 | 湖南省第四工程有限公司 | Underground outdoor side shear wall and outside beam slab connection structure |
-
2020
- 2020-04-29 CN CN202010357252.5A patent/CN111501829B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011241608A (en) * | 2010-05-19 | 2011-12-01 | Keiichi Kato | Construction method of basement in existing house |
| KR101205783B1 (en) * | 2012-05-02 | 2012-11-28 | 현대산업개발 주식회사 | The complex execution method which dismantling work of existing underground structure and constructs of new building simultaneously |
| CN204081064U (en) * | 2014-07-31 | 2015-01-07 | 中建一局集团第三建筑有限公司 | A kind of basement sandwich |
| CN108149707A (en) * | 2017-12-07 | 2018-06-12 | 成都新艺置业有限公司 | A kind of basement building structure and its construction method |
| CN210421162U (en) * | 2019-07-09 | 2020-04-28 | 湖南省第四工程有限公司 | Underground outdoor side shear wall and outside beam slab connection structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113482213A (en) * | 2021-06-25 | 2021-10-08 | 五冶集团上海有限公司 | Basement backfill soil layer structure floor slab construction method |
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| CN111501829B (en) | 2021-08-10 |
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