CN112538981A - Old building basement obstacle removing and new building pile foundation synchronous construction method - Google Patents
Old building basement obstacle removing and new building pile foundation synchronous construction method Download PDFInfo
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- CN112538981A CN112538981A CN202011343966.7A CN202011343966A CN112538981A CN 112538981 A CN112538981 A CN 112538981A CN 202011343966 A CN202011343966 A CN 202011343966A CN 112538981 A CN112538981 A CN 112538981A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/08—Wrecking of buildings
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
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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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Abstract
The invention relates to a method for removing obstacles of an old building basement and synchronously constructing a new building pile foundation. The method for clearing obstacles of the old building basement and synchronously constructing the new building pile foundation comprises the steps of determining a construction area of a new building, carrying out enclosure construction in the first area, dismantling a top plate and a structural column of the old building basement in the second area, and keeping a bottom plate and an outer wall structure of the old building basement; carrying out pile foundation construction in the first area, and dismantling an old building basement bottom plate far away from the first area; carrying out slope releasing construction outside the underground outdoor wall structure of the old building; dismantling an old building basement outer wall structure, an old building basement bottom plate close to the first area and an old pile foundation of an old building basement; and performing pile foundation construction in the second area to finish the obstacle removal of the basement of the old building and the synchronous construction of the pile foundation of the new building. The method enables the construction period of demolishing the old building and backfilling to be shortened from the total construction period, improves the construction speed and reduces the influence on the surrounding environment.
Description
Technical Field
The invention relates to the field of building construction, in particular to a method for removing obstacles of a basement of an old building and synchronously constructing a pile foundation of a new building.
Background
With the development of society, the buildings of first-line cities are basically saturated, so that a large number of projects for alternately replacing new buildings and old buildings appear. In the construction of such projects, the old building needs to be dismantled, and then the construction of a new project is carried out on the original site of the old building. The traditional construction method is that the old building is firstly dismantled, and the construction of a new project is started after the obstacle is removed and backfilled. However, the construction method has long construction period, high construction cost and great influence on the surrounding environment.
Disclosure of Invention
Therefore, it is necessary to provide a method for removing obstacles in an old building basement and synchronously constructing a new building pile foundation, which can shorten a construction period, save cost and reduce the influence on the surrounding environment, aiming at the problems of long construction period, high construction cost and large influence on the surrounding environment in the traditional construction method.
A method for removing obstacles of an old building basement and synchronously constructing a new building pile foundation comprises the following steps:
determining a construction area of a new building, wherein the construction area comprises a first area which is not overlapped with an old building basement and a second area which is overlapped with the old building basement;
carrying out enclosure construction in the first area, removing a top plate and structural columns of the basement of the old building in the second area, and keeping a bottom plate and an outer wall structure of the basement of the old building;
carrying out pile foundation construction in the first area, and dismantling an old building basement bottom plate far away from the first area;
carrying out slope releasing construction outside the underground outdoor wall structure of the old building;
dismantling an old building basement outer wall structure, an old building basement bottom plate close to the first area and an old pile foundation of an old building basement;
and performing pile foundation construction in the second area to finish the obstacle removal of the basement of the old building and the synchronous construction of the pile foundation of the new building.
In one embodiment, the step of performing pile foundation construction in the first area and removing the old building basement floor far away from the first area further comprises the following steps:
and removing the old pile foundation of the old building basement in the second area, which conflicts with the pile foundation of the new building.
In one embodiment, after the step of removing the old pile foundation of the old building basement in the second area, which conflicts with the new pile foundation, the method further comprises the following steps:
and constructing the pile foundation of the new building at the pulling-out position.
In one embodiment, before the step of removing the old pile foundation of the old building basement in the second area, which conflicts with the new pile foundation, the method further comprises the following steps:
and checking whether the old pile foundation of the old building basement conflicts with the new building pile foundation, and if not, retaining the old pile foundation of the old building basement.
In one embodiment, the step of performing the slope releasing construction outside the underground outdoor wall structure of the old building comprises the following steps:
and carrying out stepped slope releasing construction in the first area.
In one embodiment, no earth backfill is required prior to the step of pile foundation construction in the second region.
According to the method for removing obstacles of the old building basement and synchronously constructing the new building pile foundation, the stable stress system of the original structure is reserved, then local obstacle removal and pile foundation enclosure construction are carried out, stepped slope soil is reserved on the premise of not backfilling, and the excavation operation is started after the support construction is directly carried out.
Drawings
FIG. 1 is a diagram of an engineering contour line of an old building basement and a new construction project according to an embodiment;
FIG. 2 is a flowchart of a method for removing obstacles in an old building basement and synchronously constructing a new building pile foundation according to an embodiment;
fig. 3-7 are construction step diagrams of the method for removing obstacles in the basement of the old building and synchronously constructing the pile foundation of the new building according to the embodiment.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The method for removing obstacles of the basement of the old building and synchronously constructing the pile foundation of the new building is mainly applied to the construction engineering of alternate replacement of the new building and the old building. Taking the engineering project shown in fig. 1 as an example, the solid line shows the contour line of the new construction project, and the dotted line shows the contour line of the old building basement. The new construction needs to be constructed on the basis of the original building basement. That is, the construction area of the new building pile foundation includes a first area 1, i.e., a newly added area, which does not overlap with the old building basement, and a second area 2, which overlaps with the old building basement. The core principle of the invention is that the stable stress system of the original structure is reserved for local obstacle removal, the dismantling of the old building is combined with the construction of a new project, and the cross operation and the synchronous construction are realized, so that the construction period is shortened, the cost is saved, and the social and economic benefits are improved. The method for removing obstacles in the basement of the old building and synchronously constructing the pile foundation of the new building will be described in detail with reference to the accompanying drawings.
As shown in fig. 2, the method for removing obstacles in old building basements and synchronously constructing new building pile foundations in an embodiment includes the following steps:
step S10, the construction area of the new building is determined. As shown in fig. 1, the construction area includes a first area 1 that does not overlap with the old building basement and a second area 2 that overlaps with the old building basement. Wherein the first area 1 is an extension area of a new building.
And step S12, performing enclosure construction in the first area 1, removing the top plate 20 and the structural columns 21 of the basement of the old building in the second area 2, and keeping the bottom plate 22 and the outer wall structure 23 of the basement of the old building. The area where the old building basement bottom plate 22 is reserved needs to be calculated and analyzed according to the old building basement and the surrounding conditions, for example, the area is analyzed according to the soil condition outside the old building basement outer wall, the safety of the old building basement structure after being dismantled is guaranteed, collapse and other conditions are prevented, and the calculation and analysis method can adopt a common calculation method in the field, and is not limited here. As shown in fig. 3, the old building basement includes a top slab 20, a bottom slab 22, structural columns 21 between the top slab 20 and the bottom slab 22, and an exterior wall structure 23. In this step, the top panel 20 and structural columns 21 of the old building basement are completely removed. After the construction area of the new building is determined, the new pit envelope 10 is constructed in the first area 1.
In step S14, pile foundation 11 construction is performed in first area 1, and old building basement floor 22 far from first area 1 is removed. And (3) constructing a new building pile foundation 11 in the first area 1 by utilizing pile foundation construction equipment, and removing the bottom plate 22 of the old building basement in the second area 2. Wherein the bottom panel 22 of the old building basement includes a first bottom panel 220 adjacent to the old building basement exterior wall structure 23 and a second bottom panel 222 remote from the old building basement exterior wall structure 23. In this step, the second bottom plate 222 is removed, and the first bottom plate 220 is remained, so as to ensure the safety of the construction process. The construction structure of the second base plate 222 after being removed is shown in fig. 4.
In this embodiment, after the step of performing pile foundation construction in the first area 1 and removing the old building basement bottom plate 22 away from the first area 1, the method further includes:
and removing the old pile foundation 24 of the old building basement in the second area 2, which conflicts with the new building pile foundation 11. And (3) checking whether the old building basement pile foundation 24 conflicts with the new building pile foundation 11, and removing the old building basement pile foundation 24 in the affected area so as to facilitate the subsequent construction of the new building pile foundation 11. Furthermore, in this embodiment, if the old building pile foundation 24 does not conflict with the new building pile foundation 11, the old building basement pile foundation 24 is retained to become a part of the new building pile foundation 11 system, which is beneficial to saving the construction cost.
And step S16, performing slope releasing construction outside the underground outdoor wall structure 23 of the old building. As shown in fig. 5, after the construction of the new building pile foundation 11 in the first area 1 is completed, the slope is set aside outside the outer wall structure 23 of the old building basement in preparation for removing the remaining old building basement floor 22 and the outer wall structure 23. Further, in the present embodiment, the slope-releasing construction is a stepped slope-releasing construction to prevent the soil wall in the first area 1 from collapsing, and to ensure construction safety. In addition, it should be noted that the width and height of the stepped slope may be adjusted according to the requirement of the supporting bent, and this is not limited here.
As shown in fig. 6, in this embodiment, before the slope-releasing construction is performed outside the old building basement exterior wall structure 23, the construction of the new building pile foundation 11 is performed at the position where the old building basement pile foundation 24 is pulled out.
And step S18, removing the old building basement exterior wall structure 23, the old building basement bottom plate 22 close to the first area 1 and the old pile foundation 24 of the old building basement. The remaining structure of the old building basement is finally dismantled, including the first floor 220, i.e., the old building basement floor 22 adjacent to the first zone 1, and the corresponding old building basement pile 24 under the first floor 220. In addition, because the slope-releasing construction of the old building basement exterior wall structure 23 is already completed, the old building basement exterior wall structure 23 can be dismantled, and the obstacle removal of the old building basement is completed.
And step S20, performing pile foundation 11 construction on the second area 2, and completing the obstacle removal of the old building basement and the synchronous construction of the new building pile foundation. As shown in fig. 7, after the obstacle removal of the old building basement is completed, the construction of the new building pile foundation 11 is performed in the old building basement region, i.e., the second region 2, at which time, the construction of the new building pile foundation is completely completed, and then the construction of the structural column and the support can be performed.
Generally, the construction steps of the pile foundation are firstly removing obstacles and then backfilling earthwork after the obstacles are removed. However, in the present invention, since the new building pile foundation is also constructed simultaneously during the process of removing obstacles from the old building basement, in this embodiment, earth backfill is not required before the step of pile foundation construction in the second area. Namely, earth backfill is not needed in the whole construction process, so that the construction period is saved and the construction cost is reduced.
According to the method for removing obstacles of the old building basement and synchronously constructing the new building pile foundation, the stable stress system of the original structure is reserved, then local obstacle removal and pile foundation enclosure construction are carried out, stepped slope soil is reserved on the premise of not backfilling, and the excavation operation is started after the support construction is directly carried out.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (6)
1. A method for removing obstacles of an old building basement and synchronously constructing a new building pile foundation is characterized by comprising the following steps:
determining a construction area of a new building, wherein the construction area comprises a first area which is not overlapped with an old building basement and a second area which is overlapped with the old building basement;
carrying out enclosure construction in the first area, removing a top plate and structural columns of the basement of the old building in the second area, and keeping a bottom plate and an outer wall structure of the basement of the old building;
carrying out pile foundation construction in the first area, and dismantling an old building basement bottom plate far away from the first area;
carrying out slope releasing construction outside the underground outdoor wall structure of the old building;
dismantling an old building basement outer wall structure, an old building basement bottom plate close to the first area and an old pile foundation of an old building basement;
and performing pile foundation construction in the second area to finish the obstacle removal of the basement of the old building and the synchronous construction of the pile foundation of the new building.
2. The method for synchronously constructing the old building basement and the new building pile foundation according to claim 1, wherein the step of constructing the pile foundation in the first area and removing the old building basement bottom plate far away from the first area further comprises the following steps:
and removing the old pile foundation of the old building basement in the second area, which conflicts with the pile foundation of the new building.
3. The method for removing obstacles in old building basements and synchronously constructing new building pile foundations according to claim 2, wherein the step of removing old building basements old pile foundations in the second area, which conflict with the new building pile foundations, further comprises the following steps:
and constructing the pile foundation of the new building at the pulling-out position.
4. The method for removing obstacles in old building basements and synchronously constructing new building pile foundations according to claim 2, wherein before the step of removing old building basements old pile foundations in the second area, which conflict with the new building pile foundations, further comprises:
and checking whether the old pile foundation of the old building basement conflicts with the new building pile foundation, and if not, retaining the old pile foundation of the old building basement.
5. The method for removing obstacles in the basement of the old building and synchronously constructing the pile foundation of the new building as claimed in any one of claims 1 to 4, wherein the step of conducting the slope-releasing construction outside the underground outdoor wall structure of the old building comprises the following steps:
and carrying out stepped slope releasing construction in the first area.
6. The method for removing obstacles in old building basements and synchronously constructing pile foundations in new buildings according to claim 1, characterized in that earth backfilling is not needed before the step of constructing pile foundations in the second area.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011343966.7A CN112538981A (en) | 2020-11-26 | 2020-11-26 | Old building basement obstacle removing and new building pile foundation synchronous construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011343966.7A CN112538981A (en) | 2020-11-26 | 2020-11-26 | Old building basement obstacle removing and new building pile foundation synchronous construction method |
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| CN112538981A true CN112538981A (en) | 2021-03-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116240883A (en) * | 2023-02-21 | 2023-06-09 | 中铁二局集团有限公司 | Stirring pile construction method for penetrating existing underground reinforced concrete structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104060615A (en) * | 2014-06-05 | 2014-09-24 | 江苏省华建建设股份有限公司 | Construction method utilizing newly-built supporting structure of foundation pit to eliminate underground obstacle |
| CN105507610A (en) * | 2016-01-07 | 2016-04-20 | 浙江理工大学 | Seismic isolation reinforcing method for digging additional storey under existing pile-foundation building |
| CN105735383A (en) * | 2016-03-25 | 2016-07-06 | 上海建工四建集团有限公司 | Partial underground obstacle removing construction method capable of reserving structural system |
| CN107542108A (en) * | 2016-12-22 | 2018-01-05 | 深圳建业工程集团股份有限公司 | A kind of reverse construction method of building basement structure |
| CN110512649A (en) * | 2019-07-22 | 2019-11-29 | 上海建工一建集团有限公司 | The excavating construction method of basement and communication channel structure is added under existing building |
-
2020
- 2020-11-26 CN CN202011343966.7A patent/CN112538981A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104060615A (en) * | 2014-06-05 | 2014-09-24 | 江苏省华建建设股份有限公司 | Construction method utilizing newly-built supporting structure of foundation pit to eliminate underground obstacle |
| CN105507610A (en) * | 2016-01-07 | 2016-04-20 | 浙江理工大学 | Seismic isolation reinforcing method for digging additional storey under existing pile-foundation building |
| CN105735383A (en) * | 2016-03-25 | 2016-07-06 | 上海建工四建集团有限公司 | Partial underground obstacle removing construction method capable of reserving structural system |
| CN107542108A (en) * | 2016-12-22 | 2018-01-05 | 深圳建业工程集团股份有限公司 | A kind of reverse construction method of building basement structure |
| CN110512649A (en) * | 2019-07-22 | 2019-11-29 | 上海建工一建集团有限公司 | The excavating construction method of basement and communication channel structure is added under existing building |
Non-Patent Citations (1)
| Title |
|---|
| 郑磊: ""复杂特殊条件下的桩基施工技术"", 《建筑科技》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116240883A (en) * | 2023-02-21 | 2023-06-09 | 中铁二局集团有限公司 | Stirring pile construction method for penetrating existing underground reinforced concrete structure |
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Application publication date: 20210323 |