CN1058312C - Foundation supporting-changing method for grand building - Google Patents
Foundation supporting-changing method for grand building Download PDFInfo
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- CN1058312C CN1058312C CN 96106976 CN96106976A CN1058312C CN 1058312 C CN1058312 C CN 1058312C CN 96106976 CN96106976 CN 96106976 CN 96106976 A CN96106976 A CN 96106976A CN 1058312 C CN1058312 C CN 1058312C
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Abstract
The present invention provides a foundation underpinning method for edifices, which is characterized in that key operations of underpinning engineering are all carried out above an underground water level. A first floor bottom plate, a beam, a post, an outer wall and a second floor plate of the existing building are used and reinforced to form a box-shaped integral structure. An upper load is stably transferred and underpinned by new pile foundations on both sides. Compared with the existing beam type or plate type underpinning, the present invention has the advantages of small excavation quantities, convenient and safe construction operation, assurance of engineering quality, shortened construction period and saved investment; the present invention is more suitable for the foundation underpinning of the edifices on soft foundations of muddy soil, etc.
Description
The present invention is a kind of foundation underpinning method of building, and it relates to a kind of measure that prevents vibrations or the transmission of moving in the basic soil, protects the soil ground.
Continuous development along with China's Four Modernizations construction, many highrise buildings appear at each metropolis like rain the back spring bamboo, some building needs to go up in position enlarging or reconstruction, also some large-scale communal facilities such as underground railway, highway culvert and underground pipeline need pass below building building, these engineerings all need the foundation by existing building to underpin to keep the existing building basis not to be subjected to disturbance, guarantee the construction safety of newly-built underground construction and reliable and stable between the operating period simultaneously.Beam type of Cai Yonging or board-like support and change method in the past, all be the existing building both sides piling of passing through in the underground structure earlier, below foundation bed, excavate from the side then, below the basis, do plate or beam, and upper load is underpined the both sides pile foundation by plate or beam.The most of operations of this support and change method is all carried out at underground, its shortcoming is: the excavation workload is big, long in time limit, working space is limited, construction is dangerous, workmanship is not easy to guarantee, especially the soft foundation formed of mud or mucky soil, constructional difficulties not only, degree of safety is poor, more be difficult to guarantee workmanship.
Purpose of the present invention is exactly for overcoming the shortcoming that above-mentioned prior art exists, the technical method that provides a kind of key operation all more than groundwater table, to carry out, it takes into full account superstructure, newly establishes the comprehensive function of pile foundation and ground stabilization measure, make three's carrying consistent, for the whole work of underpining provides enough safety guarantee with compatibility of deformation.
The object of the present invention is achieved like this: a kind of foundation underpinning method of building, the operation that it is characterized in that underpining engineering all is to carry out more than groundwater table, it utilizes one deck base plate, beam column, exterior wall and the two floor plates of existing building, reinforce the back and form a box structure, and upper load is shifted reposefully and underpin by new pile foundation, its concrete implementation step and method are as follows:
(1) carries out the working drawing design according to the foundation underpinning scheme;
(2) road, power and water are connected in job site removal, smooth;
(3) the friendship stake of measurement unwrapping wire and existing building;
(4) carry out new pile foundation construction according to new stake position, stake footpath size and stake that calculate to determine are dark, new pile foundation can adopt the in-site pouring pile construction method of non-circular large-section driven;
(5) reinforcing of the ground of existing building thing, beam column, exterior wall and two floor plates: base plate and the grade beam with the existing building thing pours into new unsplit bed(-)plate with steel concrete earlier, and existing post bottom perimeter should be reserved second stage concrete groove and reserved steel bar joint; Base plate stretches out and is connected with new pile foundation; With beam, post, the exterior wall of building, reinforced with steel concrete or other materials together with two floor plates then, constitute a box-shaped overall structure, this structure should be considered door, the window influence of building when calculating;
(6) cut-out of existing pile foundation or column: after the concrete that newly waters base plate reaches design strength, carry out the cut-out of original pile crown and cushion cap coupling part and handle; Cut the appropriate to the occasion elder generation of post and in column periphery 1-2 rice scope, set up interim support, and then carry out column is connected part with cushion cap cut-out processing;
(7) pour into a mould the column or the stake top that have cut off and reserve the interior the second stage of steel concrete of operation slot;
(8) carry out the monitoring of sedimentation and displacement in the construction at any time;
(9) load underpins the function of use that the existing building thing is recovered in the back.
The cut-off part of existing pile foundation or pillar, 20-40 centimetre backfill space need be left in its bottom, and the backfilling material in this space is respectively from bottom to top: mortar levelling layer, thickness are that 10-15 centimetre of rubber cushion, thickness are 10-15 centimetre of wet mortar and concrete.
Description of drawings of the present invention is as follows:
Fig. 1 passes the floor map of building for underground structure
Fig. 2 is the schematic cross section of foundation underpinning engineering
Fig. 3 is a schematic diagram of cutting of foundation underpinning engineering
Fig. 4 is the vertical view of Fig. 3
Fig. 5 is the place of incision space backfill schematic diagram of stake or post
Fig. 6 cuts the post schematic diagram for the foundation underpinning engineering
Fig. 7 is the vertical view of Fig. 6
Embodiment below in conjunction with accompanying drawing is described in further details the present invention:
Embodiment: referring to Fig. 1 and Fig. 2, a kind of foundation underpinning method of building, the invention is characterized in that the whole operations that underpin engineering are to carry out more than groundwater table, it utilizes one deck base plate, beam, post, exterior wall and the two floor plates of existing building, form a box structure through reinforcing, and upper load is shifted reposefully and underpin by new pile foundation, its concrete implementation step and method are as follows:
1. carry out the working drawing design according to the foundation underpinning scheme;
2. road, power and water are connected in job site removal, smooth;
3. measure the friendship stake work of unwrapping wire and existing building, referring to Fig. 1, the floor map of (1)-existing building (2) among the figure-plan to build underground building center line;
4. carry out new pile foundation construction according to new stake position, stake footpath size and stake that calculate to determine are dark;
5. the reinforcing of the ground of existing building thing, beam, post, exterior wall and two floor plates: referring to Fig. 2, base plate (3) and grade beam (4) with existing building pours into new unsplit bed(-)plate (5) with steel concrete earlier, the post bottom perimeter that plan is cut off is answered the reserved steel bar joint, and base plate (5) stretches out and is connected with new pile foundation (6); With the back timber (7) of building, post on every side, exterior wall (8), reinforced with steel concrete or other materials together with two floor plates (9) then, constitute a box-shaped overall structure, this structure is considered the influence of building door and window when calculating;
6. the cut-out of existing pile foundation or column: referring to Fig. 3 and Fig. 4, then after the concrete strength that newly waters base plate reaches designing requirement, can adopt graphic technique to carry out the cut-out processing of pile crown with cushion cap (11) connecting portion of original stake (10) when having only one or two piles to cut off under the existing building thing base for post;
Claims (2)
1, a kind of foundation underpinning method of building, the operation that it is characterized in that underpining engineering all is to carry out more than groundwater table, it utilizes one deck base plate, beam column, exterior wall and the two floor plates of existing building, reinforce the back and form a box structure, and upper load is shifted reposefully and underpin by new pile foundation, its concrete implementation step and method are as follows:
(1) carries out the working drawing design according to the foundation underpinning scheme;
(2) road, power and water are connected in job site removal, smooth;
(3) the friendship stake of measurement unwrapping wire and existing building;
(4) carry out new pile foundation construction according to new stake position, stake footpath size and stake that calculate to determine are dark, new pile foundation can adopt the in-site pouring pile construction method of non-circular large-section driven;
(5) reinforcing of the ground of existing building thing, beam, post, exterior wall and two floor plates: base plate and the grade beam with the existing building thing pours into new unsplit bed(-)plate with steel concrete earlier; Existing post bottom perimeter should be reserved second stage concrete groove and reserved steel bar joint; Base plate stretches out and is connected with new pile foundation; With beam, post, the exterior wall of building, reinforced with steel concrete or other materials together with two floor plates then, constitute a box-shaped overall structure, this structure is considered door, the window influence of building when calculating;
(6) cut-out of existing pile foundation or column: after the concrete that newly waters base plate reaches design strength, carry out the cut-out of original pile crown and cushion cap connecting portion and handle; Cut the appropriate to the occasion elder generation of post and in column periphery 1-2 rice scope, set up interim support, and then carry out column is connected part with cushion cap cut-out processing;
(7) pour into a mould the column or the stake top that have cut off and reserve the interior the second stage of steel concrete of operation slot;
(8) carry out the monitoring of sedimentation and displacement in the construction at any time;
(9) load underpins the function of use that the existing building thing is recovered in the back.
2, the foundation underpinning method of building according to claim 1, the cut-off part that it is characterized in that existing pile foundation or pillar, 20-40 centimetre backfill space is left in its bottom, and the backfilling material in this space is respectively from bottom to top: mortar levelling layer, thickness are that 10-15 centimetre of rubber cushion, thickness are 10-15 centimetre of wet mortar and concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96106976 CN1058312C (en) | 1996-08-02 | 1996-08-02 | Foundation supporting-changing method for grand building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96106976 CN1058312C (en) | 1996-08-02 | 1996-08-02 | Foundation supporting-changing method for grand building |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1145439A CN1145439A (en) | 1997-03-19 |
| CN1058312C true CN1058312C (en) | 2000-11-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96106976 Expired - Fee Related CN1058312C (en) | 1996-08-02 | 1996-08-02 | Foundation supporting-changing method for grand building |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1058312C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100383349C (en) * | 2005-09-06 | 2008-04-23 | 贵阳铝镁设计研究院 | Method for reconstructing operation platform column foundation in existing workshop |
| CN100396855C (en) * | 2005-09-07 | 2008-06-25 | 贵阳铝镁设计研究院 | Existing one-storied factory continuation end foundation construction method |
| CN102653945A (en) * | 2011-03-04 | 2012-09-05 | 张继红 | Foundation reinforcing and replacing structure and construction method thereof |
Families Citing this family (13)
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| CN100443672C (en) * | 2006-03-08 | 2008-12-17 | 中铁隧道集团有限公司 | Underpinning method of pile ground underground |
| CN100357555C (en) * | 2006-07-07 | 2007-12-26 | 山东建筑大学 | Controllable lifting underpinning tool |
| CN101294447B (en) * | 2007-04-23 | 2010-04-14 | 上海市城市建设设计研究院 | Buildings pile underpinning method |
| CN101476324A (en) * | 2009-01-20 | 2009-07-08 | 叶长青 | Raft plate base and its construction method |
| CN103015463A (en) * | 2011-03-18 | 2013-04-03 | 张继红 | Foundation isolation construction method for built building and isolation structure used by same |
| CN102733429A (en) * | 2012-06-29 | 2012-10-17 | 广州市胜特建筑科技开发有限公司 | Underpinning method for new tunnel to pass through existing building and underpinning system |
| CN102864788A (en) * | 2012-10-19 | 2013-01-09 | 江苏华通工程检测有限公司 | Method for underpinning reinforced bridge pile foundation by bear-type static pressure cluster pile |
| CN104131816B (en) * | 2014-06-20 | 2019-02-12 | 上海建工五建集团有限公司 | The construction method in subway tunnel subterranean wall enabling hole in a kind of operation |
| CN107100216B (en) * | 2017-03-27 | 2019-02-01 | 扬州市建筑安全监察站 | The unilateral basic pile foundation of monolithic wall overhangs underpinning construction method |
| CN106988337B (en) * | 2017-04-20 | 2019-02-01 | 南京工大桥隧与轨道交通研究院有限公司 | It is a kind of for reducing the reinforcement means of bar shaped shallow foundation house differential settlement |
| CN108086343B (en) * | 2017-12-12 | 2023-10-13 | 上海建工一建集团有限公司 | Cantilever type single-side wall body mixed reinforcement and replacement structure and construction method thereof |
| CN111926869B (en) * | 2020-08-19 | 2021-11-12 | 许昌学院 | Heavy construction foundation reinforcing apparatus |
| CN114837455B (en) * | 2022-06-09 | 2023-06-23 | 水利部交通运输部国家能源局南京水利科学研究院 | Method for reconstructing sunken hydraulic building |
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1996
- 1996-08-02 CN CN 96106976 patent/CN1058312C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100383349C (en) * | 2005-09-06 | 2008-04-23 | 贵阳铝镁设计研究院 | Method for reconstructing operation platform column foundation in existing workshop |
| CN100396855C (en) * | 2005-09-07 | 2008-06-25 | 贵阳铝镁设计研究院 | Existing one-storied factory continuation end foundation construction method |
| CN102653945A (en) * | 2011-03-04 | 2012-09-05 | 张继红 | Foundation reinforcing and replacing structure and construction method thereof |
| CN102653945B (en) * | 2011-03-04 | 2014-10-22 | 张继红 | Foundation reinforcing and replacing structure and construction method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1145439A (en) | 1997-03-19 |
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