CN108360553A - The construction method of Basement reconstruction construction with raft foundation building - Google Patents

The construction method of Basement reconstruction construction with raft foundation building Download PDF

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Publication number
CN108360553A
CN108360553A CN201810152600.8A CN201810152600A CN108360553A CN 108360553 A CN108360553 A CN 108360553A CN 201810152600 A CN201810152600 A CN 201810152600A CN 108360553 A CN108360553 A CN 108360553A
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CN
China
Prior art keywords
concrete
bearing column
basement
original
stirrup
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Pending
Application number
CN201810152600.8A
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Chinese (zh)
Inventor
朱奎
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朱奎
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Publication date
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Priority to CN201610638211.7A priority Critical patent/CN106285032B/en
Priority to CN201810152600.8A priority patent/CN108360553A/en
Publication of CN108360553A publication Critical patent/CN108360553A/en
Pending legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00Working measures on existing buildings
    • E04G23/02Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0266Enlarging
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00Foundations as substructures
    • E02D27/32Foundations for special purposes
    • E02D27/48Foundations inserted underneath existing buildings or constructions
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22Piles
    • E02D5/64Repairing piles
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/0007Base structures; Cellars
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00Working measures on existing buildings
    • E04G23/06Separating, lifting, removing of buildings; Making a new sub-structure
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00Materials
    • E02D2300/0004Synthetics
    • E02D2300/0018Cement used as binder
    • E02D2300/002Concrete

Abstract

The construction method for the Basement reconstruction construction that the invention discloses a kind of with raft foundation building, it is characterized in that construction procedure includes:(1) foundation soil is excavated to basement bottom board elevation of bottom position;(2) casting concrete bottom plate;(3) in concrete raft plate following settings temporary steel support;Topmost cross bar is 0.6~0.8mm from concrete raft plate distance from bottom, remaining cross bar distance is 1.8~2.2mm;(4) original stake is reinforced, bearing column is formed;(5) the brushing polyurethane water-proof mortar on concrete floor.Structural behavior of the present invention is good, securely and reliably.

Description

The construction method of Basement reconstruction construction with raft foundation building
Technical field
The present invention relates to a kind of Basement reconstruction method, more particularly to a kind of Basement reconstruction with raft foundation building The construction method of construction.
Background technology
With the development of the city, parking difficulty becomes the problem of puzzlement common people.It is necessary to have transformation condition to some Building is transformed, and resets basement.For band raft foundation building, Basement reconstruction structure is due in raft plate base Stake is disposed below in plinth, and stake spacing is relatively close, and stake spacing is generally between 1.8~2.5mm, and these stakes are main vertical How load-carrying member can ensure that the safety of building and can ensure that the use function of basement, be engineering staff's class to be faced Topic.
Invention content
The present invention is to provide a kind of construction method of the Basement reconstruction construction with raft foundation building, solves basement Safe problem in transformation process.
The present invention during Basement reconstruction of building using original as basement bearing column, and removably under Room site portion stake carries out reinforcing to original stake and forms bearing column, bearing column and original for the situation that original dowel section area is inadequate Have and effective connection is carried out using special connecting structure between stake.Original stake easily becomes infiltration with concrete floor contact site and leads to Road carries out waterproof using watertight rubber ring.
Bearing column is the cylinder after original stake is reinforced, the original half 120~300mm of path length of stake of bearing column radius ratio, i.e., It is 120~300mm that annular concrete width is reinforced in bearing column, and the principal rod that annular concrete is reinforced in bearing column uses diameter For the reinforcing bar of 22~25mm, adjacent load intercolumniation is 3.5~6mm;The total sectional area of bearing column and former all piles are total after reinforcing Sectional area is identical or difference is less than 10%;Basement bottom board thickness is 400~550mm, and basement bottom board is in bearing column position Shearing resistance muscle is set, and it is split heads shape that shearing resistance muscle diameter, which uses 32~35mm, shearing resistance muscle shape,.Original outer surface in concrete floor Watertight rubber ring is set, and watertight rubber ring installation position is that ring seal is arranged along original outer surface in the middle part of concrete floor Slot, ring seal slot 3~5mm of indent, ring seal slot are embedded in watertight rubber ring;Polyurethane water-proof is set above concrete floor Mortar, polyurethane water-proof mortar thickness are 15~25mm.
When original stake is cast-in-situ bored pile, annular concrete is reinforced in bearing column with original connecting structure using such as Under:It is naked after protective layer of cast-in-place pile stripping to drop out stirrup, cast-in-situ bored pile stirrup with reinforce annular concrete principal rod it Between setting connection stirrup, connection stirrup makes rectangle, and connection use the bar diameter of stirrup is 6~8mm, connects stirrup and is arranged Spacing is identical as cast-in-situ bored pile stirrup spacing, connection stirrup respectively with cast-in-situ bored pile stirrup and reinforce annular concrete Principal rod is welded.
Construction procedure includes:
(1) foundation soil is excavated to basement bottom board elevation of bottom position;
(2) casting concrete bottom plate
Ring seal slot is dug out in original outer surface, and watertight rubber ring is embedded in annular water stopping trough;Bind concrete floor Reinforcing bar, shearing resistance muscle, supporting module are simultaneously poured;
(3) in concrete raft plate following settings temporary steel support, temporary steel support uses I-steel, I-steel that spacing is arranged For 2~2.5mm, setting cross bar is attached between adjacent I-steel, to ensure the globality of I-shaped bracing members;Topmost cross bar It is 0.6~0.8mm from concrete raft plate distance from bottom, remaining cross bar distance is 1.8~2.2mm;
(4) original stake is reinforced, bearing column is formed;
Bearing column by original of part as basement, and original stake is reinforced;It is that drilling fills for original stake It is naked after protective layer of cast-in-place pile is removed to drop out stirrup, installation connection stirrup, connection stirrup and drill-pouring pile ring when noting stake Muscle is welded, and is bound the principal rod of bearing column and is welded with stirrup is connect, and supporting module, then pours in bearing column and reinforce Annular concrete.
Concrete raft plate and pile concrete of the basement bottom board in addition to bearing column are cut, and cuts off a reinforcing bar;
(5) the brushing polyurethane water-proof mortar on concrete floor.
Structure of the invention performance is good, securely and reliably.
Description of the drawings
Fig. 1 is the raft foundation schematic diagram excavated after foundation soil, and Fig. 2 is Basement reconstruction formwork system schematic diagram, and Fig. 3 is Basement reconstruction structural schematic diagram, Fig. 4 are cast-in-situ bored pile ruggedized construction schematic diagram.
In each attached drawing:1, concrete raft plate, 2, Yuan Youzhuan, 3, bearing column, 4, basement bottom board, 5, watertight rubber ring, 6, I-steel, 7, cross bar, 8, polyurethane water-proof mortar, 9, shearing resistance muscle, 10, principal rod, 11, connection stirrup, 12, reinforce annular coagulation Soil, 13, cast-in-situ bored pile.
Specific implementation mode
Bearing column 3 is the cylinder after original stake 2 is reinforced, original 2 half path length of stake of 3 radius ratio of bearing column in embodiment 120~300mm, i.e., it is 120~300mm that 12 width of annular concrete is reinforced in bearing column 3, and annular coagulation is reinforced in bearing column 3 For the principal rod 10 of soil 12 using the reinforcing bar of a diameter of 22~25mm, 3 spacing of adjacent bearing column is 3.5~6mm;Bearing column after reinforcing 3 total sectional area is identical as former all piles total sectional area or difference is less than 10%;4 thickness of basement bottom board be 400~ 550mm, for basement bottom board 4 in 3 position of bearing column setting shearing resistance muscle 9,9 diameter of shearing resistance muscle uses 32~35mm, 9 shape of shearing resistance muscle For split heads shape.2 outer surface of original stake setting watertight rubber ring 5 in concrete floor, 5 installation position of watertight rubber ring is concrete In the middle part of bottom plate, ring seal slot, ring seal slot 3~5mm of indent are set along 2 outer surface of original stake, the insertion of ring seal slot stops Water rubber ring 5;Polyurethane water-proof mortar 8 is set above concrete floor, and 8 thickness of polyurethane water-proof mortar is 15~25mm.
Annular concrete 12 is reinforced in bearing column 3 with 2 connecting structure of original stake using as follows:13 protective layer of cast-in-situ bored pile It is naked after stripping to drop out stirrup, setting connection stirrup between 13 stirrup of cast-in-situ bored pile and the principal rod 10 for reinforcing annular concrete 12 11, connection stirrup 11 does rectangularity, and connection 11 use bar diameter of stirrup is 6~8mm, connection stirrup 11 setting spacing and 13 stirrup spacing of cast-in-situ bored pile is identical, connection stirrup 11 respectively with 13 stirrup of cast-in-situ bored pile and reinforce annular concrete 12 Principal rod 10 welded.
Construction procedure includes:
(1) foundation soil is excavated to 4 elevation of bottom position of basement bottom board;
(2) casting concrete bottom plate
Ring seal slot is dug out in 2 outer surface of original stake, and watertight rubber ring 5 is embedded in annular water stopping trough;Bind concrete bottom Slab muscle, shearing resistance muscle 9, supporting module are simultaneously poured;
(3) in 1 following settings temporary steel support of concrete raft plate, temporary steel support uses I-steel 6, I-steel 6 to be arranged Spacing is 2~2.5mm, and cross bar 7, which is arranged, between adjacent I-steel 6 is attached, to ensure the globality of the support of I-steel 6;Most Upper cross bar 7 is 0.6~0.8mm from 1 distance from bottom of concrete raft plate, remaining cross bar 7 is apart from for 1.8~2.2mm;
(4) original stake 2 is reinforced, bearing column 3 is formed;
Bearing column 3 by the original stake 2 in part as basement, and original stake 2 is reinforced;Cast-in-situ bored pile 13 is protected Naked after sheath stripping to drop out stirrup, installation connection stirrup 11 connects stirrup 11 and is welded with 13 stirrup of cast-in-situ bored pile, bound The principal rod 10 of bearing column 3 is simultaneously welded with stirrup 11 is connect, and supporting module, is then poured and is reinforced annular coagulation in bearing column 3 Soil 12.
Concrete raft plate 1 and pile concrete of the basement bottom board 4 in addition to bearing column 3 are cut, and cuts off a reinforcing bar;
(5) the brushing polyurethane water-proof mortar 8 on concrete floor.

Claims (1)

1. a kind of construction method of the Basement reconstruction construction with raft foundation building, it is characterized in that construction procedure includes:
(1) foundation soil is excavated to basement bottom board elevation of bottom position;
(2) casting concrete bottom plate
Basement bottom board thickness is 400~550mm, and shearing resistance muscle is arranged in bearing column position in basement bottom board, and shearing resistance muscle diameter is adopted With 32~35mm, shearing resistance muscle shape is split heads shape;Watertight rubber ring, watertight rubber is arranged in original outer surface in concrete floor Ring installation position is in the middle part of concrete floor, is arranged ring seal slot along original outer surface, ring seal slot 3~5mm of indent, Ring seal slot is embedded in watertight rubber ring;
Ring seal slot is dug out in original outer surface, and watertight rubber ring is embedded in annular water stopping trough;Binding concrete floor reinforcing bar, Shearing resistance muscle, supporting module are simultaneously poured;
(3) in concrete raft plate following settings temporary steel support, temporary steel support uses I-steel, and it is 2 that spacing, which is arranged, in I-steel ~2.5mm, setting cross bar is attached between adjacent I-steel, to ensure the globality of I-shaped bracing members;Topmost cross bar from Concrete raft plate distance from bottom is 0.6~0.8mm, remaining cross bar distance is 1.8~2.2mm;
(4) original stake is reinforced, bearing column is formed;
Bearing column is the cylinder after original stake is reinforced, the original half 120~300mm of path length of stake of bearing column radius ratio, i.e. load It is 120~300mm that annular concrete width is reinforced in column, and the principal rod that annular concrete is reinforced in bearing column uses a diameter of 22 The reinforcing bar of~25mm, adjacent load intercolumniation are 3.5~6mm;The total sectional area of bearing column and former all piles total cross section after reinforcing Product is identical or difference is less than 10%;
It is naked after protective layer of cast-in-place pile is removed to drop out stirrup, installation connection stirrup, connection stirrup and cast-in-situ bored pile stirrup It is welded, bind the principal rod of bearing column and is welded with stirrup is connect, and supporting module, then pour reinforcing ring in bearing column Shape concrete;Concrete raft plate and pile concrete of the basement bottom board in addition to bearing column are cut, and cuts off a reinforcing bar;
(5) the brushing polyurethane water-proof mortar on concrete floor;
Polyurethane water-proof mortar thickness is 15~25mm.
CN201810152600.8A 2016-07-26 2016-07-26 The construction method of Basement reconstruction construction with raft foundation building Pending CN108360553A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201610638211.7A CN106285032B (en) 2016-07-26 2016-07-26 Basement reconstruction construction with raft foundation building
CN201810152600.8A CN108360553A (en) 2016-07-26 2016-07-26 The construction method of Basement reconstruction construction with raft foundation building

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Application Number Priority Date Filing Date Title
CN201810152600.8A CN108360553A (en) 2016-07-26 2016-07-26 The construction method of Basement reconstruction construction with raft foundation building

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CN201610638211.7A Active CN106285032B (en) 2016-07-26 2016-07-26 Basement reconstruction construction with raft foundation building
CN201810152606.5A Pending CN108301635A (en) 2016-07-26 2016-07-26 The Basement reconstruction structure of bored pile foundation
CN201810152600.8A Pending CN108360553A (en) 2016-07-26 2016-07-26 The construction method of Basement reconstruction construction with raft foundation building

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CN201810152606.5A Pending CN108301635A (en) 2016-07-26 2016-07-26 The Basement reconstruction structure of bored pile foundation

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108331367A (en) * 2016-07-26 2018-07-27 朱奎 The Basement reconstruction structure of raft foundation

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1257149A (en) * 1998-12-11 2000-06-21 北京市第七城市建设工程公司 Integral foundation underpinning technology for building added floor
JP2002115260A (en) * 2000-10-11 2002-04-19 Shimizu Corp Extension method for basement
CN102127974A (en) * 2011-04-18 2011-07-20 上海现代建筑设计(集团)有限公司 Design and construction method of additional cellar under existing building
CN102444142A (en) * 2011-09-20 2012-05-09 新世纪建设集团有限公司 Pile group column replacement expanded basement and construction method of same
CN203222817U (en) * 2013-05-11 2013-10-02 王镛 Connecting structure of basement stand column
CN104878835A (en) * 2015-05-19 2015-09-02 叶长青 Strip-shaped foundation house rear basement structure

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100338315C (en) * 2005-06-09 2007-09-19 上海市城市建设设计研究院 Construction method of reconstrating existant underground space into subway station
JP4722783B2 (en) * 2006-07-03 2011-07-13 株式会社竹中土木 Foundation reinforcement method for existing buildings
CN108331367A (en) * 2016-07-26 2018-07-27 朱奎 The Basement reconstruction structure of raft foundation

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1257149A (en) * 1998-12-11 2000-06-21 北京市第七城市建设工程公司 Integral foundation underpinning technology for building added floor
JP2002115260A (en) * 2000-10-11 2002-04-19 Shimizu Corp Extension method for basement
CN102127974A (en) * 2011-04-18 2011-07-20 上海现代建筑设计(集团)有限公司 Design and construction method of additional cellar under existing building
CN102444142A (en) * 2011-09-20 2012-05-09 新世纪建设集团有限公司 Pile group column replacement expanded basement and construction method of same
CN203222817U (en) * 2013-05-11 2013-10-02 王镛 Connecting structure of basement stand column
CN104878835A (en) * 2015-05-19 2015-09-02 叶长青 Strip-shaped foundation house rear basement structure

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CN106285032B (en) 2018-12-14
CN108301635A (en) 2018-07-20
CN106285032A (en) 2017-01-04

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