CN109680978A - Basement increasing layer underpinning construction method - Google Patents

Basement increasing layer underpinning construction method Download PDF

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Publication number
CN109680978A
CN109680978A CN201910118147.3A CN201910118147A CN109680978A CN 109680978 A CN109680978 A CN 109680978A CN 201910118147 A CN201910118147 A CN 201910118147A CN 109680978 A CN109680978 A CN 109680978A
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China
Prior art keywords
newly
basement
construction
steel pipe
increased
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Granted
Application number
CN201910118147.3A
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CN109680978B (en
Inventor
李有志
石军乐
刘艾轩
梁志峰
范金锋
邱斌
张永峰
江建
周保生
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Shenzhen Yue Tong Construction Engineering Co Ltd
Henzhen Municipal Engineering Corp
Shenzhen Municipal Engineering Corp
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Shenzhen Yue Tong Construction Engineering Co Ltd
Henzhen Municipal Engineering Corp
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Application filed by Shenzhen Yue Tong Construction Engineering Co Ltd, Henzhen Municipal Engineering Corp filed Critical Shenzhen Yue Tong Construction Engineering Co Ltd
Priority to CN201910118147.3A priority Critical patent/CN109680978B/en
Publication of CN109680978A publication Critical patent/CN109680978A/en
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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

Abstract

The present invention relates to the technical fields that basement increasing layer underpins, disclose basement increasing layer underpinning construction method, it is changed for being dragged to fabric structure progress basement increasing layer, pass through pile integral structure of first constructing, pile integral structure includes positioned at the bored concrete pile increased newly under the elevation location of basement floor bottom and being located at the newly-increased indoor steel pipe column in underground, it has been integrally formed the supportive structure for increasing the fabric structure on basement floor top newly for rest, the supportive structure rest is firm, mechanical property is good, then it carries out dragging the construction for changing beam, it drags and changes beam and be located on pile integral structure, it drags and changes the fabric structure that beam increases basement floor top newly for rest, finally complete the earthwork construction of newly-increased basement floor, and the construction of newly-increased basement floor top plate and bottom plate;This form of construction work solves the problems, such as that original structure basis easily settles, and the use of steel pipe column can effectively reduce the sectional area of column and be conducive to the cleaning work on column surface.

Description

Basement increasing layer underpinning construction method
Technical field
The present invention relates to the technical fields that basement increasing layer underpins, especially basement increasing layer underpinning construction method.
Background technique
Ancient times can be traced back to by dragging the origin for the technology of changing, but the technology of changing is dragged to build USA New York until the 1930s It is just rapidly developed when the underground railway in city, a large amount of constructions of basement layer reinforced structure, drag the technology of changing to increasing layer in recent years It is required that higher and higher.
It is underpined in project in basement increasing layer, basement construction is constructed similar to sheltered reverse excavation, first construct pile foundation, basement Frame column, transform beams complete underpining for superstructure entirety, then carry out basement earth work and truncated cylinder, remove original basis, Basement bottom board construction, basement roof construction, completes basement main body construction.In the process, basis how is controlled not Uniform settlement is the critical issue for guaranteeing superstructure safety.The factor for influencing foundation settlement includes lifting and the ground of underground water The disturbance of base soil.
In the prior art, lack a kind of differential settlement that can effectively eliminate basis to being dragged the ground for changing the influence of structure Lower room increasing layer underpinning construction method.
Summary of the invention
The purpose of the present invention is to provide basement increasing layer underpinning construction methods, it is intended to solve basement in the prior art and increase Layer drags the problem for changing construction effect difference.
The invention is realized in this way basement increasing layer underpinning construction method, for carrying out basement to fabric structure Increasing layer, which is dragged, changes, and fabric structure includes the basis of subsurface, the frame column on ground and the building main body on ground;It is described Construction method the following steps are included:
S1, planning and designing increase the top mark height and bottom absolute altitude of basement floor newly;
S2, from ground, rotary digging forms multiple vertical spaced apart stake holes downwards, and the depth of the stake holes will be more than described The bottom elevation location of newly-increased basement floor;
The first steel reinforcement cage of decentralization and conduit in S3, Xiang Suoshu stake holes, the top of first steel reinforcement cage increase newly with described The bottom elevation location of basement floor is located at sustained height, pumps concrete perfusion into the stake holes by conduit and forms perfusion The bottom elevation location of stake, the top of the bored concrete pile and the newly-increased basement floor is located at sustained height;
S4, the bored concrete pile is inserted into the lower end of steel pipe, the steel pipe is vertically arranged, the top of the steel pipe and described new Increase the top elevation location of basement floor on sustained height;
S5, the second steel reinforcement cage is installed in the steel pipe, after the concrete initial set of the bored concrete pile, in Xiang Suoshu steel pipe Filling concrete is carried out, forms steel pipe column after concrete setting;
The construction for changing beam is dragged in S6, completion, and described drag changes the top elevation location that beam is transversely arranged on the newly-increased basement floor Place, described drag are changed beam and are fixedly connected with the frame column on ground with frame column described in rest, and the steel pipe column is dragged with described Beam is changed to be fixedly connected to drag described in rest and change beam;
S7, the earthwork construction for carrying out the newly-increased basement floor form the space of the newly-increased basement floor;
S8, truncation simultaneously clear up the top elevation location frame column below for being located at the newly-increased basement floor;It removes and clears up The original base of the fabric structure.
S9, the top elevation location construction basement roof in the newly-increased basement floor;In the newly-increased basement floor Bottom elevation location construction basement bottom board.
Further, the steel pipe has the insertion section being embedded in the bored concrete pile, and the periphery of the insertion section is welded with Steel hoop cage, the steel hoop cage are put into the stake holes, and concrete is filled between the insertion section and the stake holes.
Further, in step s 4, after the bored concrete pile being inserted into the lower end of steel pipe, the verticality of steel pipe is surveyed Amount guarantees that steel pipe is arranged vertically.
Further, the bottom of the steel pipe is welded with for preventing second steel reinforcement cage from falling to the support outside steel pipe Frame.
Further, in step s 2, after rotary digging forms stake holes, the verticality of stake holes is measured, guarantees that stake holes is hung down Directly.
Further, it is described drag to change in beam to be provided with change the steel of the structural strength and mechanical property of beam for improving described drag Muscle structure;The bar construction is connect with the steel reinforcement cage in the steel pipe column by reinforcement welding.
Compared with prior art, basement increasing layer provided by the invention drags the method for changing, and passes through pile integration knot of first constructing Structure, pile integral structure include the bored concrete pile under newly-increased basement floor bottom elevation location and are located in newly-increased basement Steel pipe column, be integrally formed the supportive structure for increasing the fabric structure on basement floor top newly for rest, the supportive structure Rest is firm, and mechanical property is good, then carries out dragging the construction for changing beam, drags and changes beam and be located on pile integral structure, drags and changes beam and use The fabric structure on basement floor top is increased newly in rest, finally completes the earthwork construction of newly-increased basement floor, and newly-increased The construction of basement floor top plate and bottom plate;This form of construction work solves the problems, such as that original structure basis easily settles, steel The use of tubing string can effectively reduce the sectional area of column and be conducive to the cleaning work on column surface.
Detailed description of the invention
Fig. 1 is that basement increasing layer provided in an embodiment of the present invention drags the construction process schematic diagram for changing construction;
Fig. 2 is that the pile foundation construction diagrammatic cross-section before changing is dragged in completion provided in an embodiment of the present invention;
Fig. 3 is that the newly-increased basement floor diagrammatic cross-section after changing is dragged in completion provided in an embodiment of the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and It is not used in the restriction present invention.
The same or similar label correspond to the same or similar components in the attached drawing of the present embodiment;In description of the invention In, it is to be understood that if there is the orientation or positional relationship of the instructions such as term " on ", "lower", "left", "right" for based on attached drawing institute The orientation or positional relationship shown, is merely for convenience of description of the present invention and simplification of the description, rather than the dress of indication or suggestion meaning It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore describe the use of positional relationship in attached drawing Language only for illustration, should not be understood as the limitation to this patent, for the ordinary skill in the art, can be with The concrete meaning of above-mentioned term is understood as the case may be.
Realization of the invention is described in detail below in conjunction with specific embodiment.
Referring to Fig.1 shown in -3, preferred embodiment is provided for the present invention.
Basement increasing layer underpinning construction method changes, fabric structure for dragging to fabric structure progress basement increasing layer Frame column on basis, ground including subsurface and the building main body on ground;Construction method the following steps are included:
S1, planning and designing increase the top mark height and bottom absolute altitude of basement floor newly;
S2, from ground, rotary digging forms multiple vertical spaced apart stake holes downwards, and the depth of stake holes will be more than newly-increased underground The bottom elevation location of room floor;
S3, the first steel reinforcement cage and conduit, the bottom at the top of the first steel reinforcement cage and newly-increased basement floor are transferred into stake holes Elevation location is located at sustained height, pumped by conduit into stake holes concrete perfusion formed bored concrete pile, the top of bored concrete pile with The bottom elevation location of newly-increased basement floor is located at sustained height;
S4, bored concrete pile is inserted into the lower end of steel pipe, steel pipe is vertically arranged, the top mark at the top of steel pipe and newly-increased basement floor High position is on sustained height;
S5, the second steel reinforcement cage is installed in steel pipe, after the concrete initial set of bored concrete pile, concrete filling is carried out into steel pipe Note, forms steel pipe column after concrete setting;
The construction for changing beam is dragged in S6, completion, is dragged and is changed beam and be transversely arranged at the top elevation location of newly-increased basement floor, drags and change beam It is fixedly connected with the frame column on ground with rest frame column, steel pipe column changes beam with dragging to change beam and be fixedly connected to drag with rest;
S7, the earthwork construction for carrying out newly-increased basement floor, form the space of newly-increased basement floor;
S8, truncation simultaneously clear up the top elevation location frame column below for being located at newly-increased basement floor;It removes and clears up building The original base of object structure.
S9, the top elevation location construction basement roof in newly-increased basement floor;In the bottom absolute altitude position of newly-increased basement floor Set construction basement bottom board.
The basement increasing layer of above-mentioned offer drags the method for changing, and passes through pile integral structure of first constructing, pile integral structure Including the bored concrete pile being located under newly-increased basement floor bottom elevation location and it is located at the newly-increased indoor steel pipe column in underground, overall structure Increase the supportive structure of the fabric structure on basement floor top newly for rest, the supportive structure rest is firm, mechanical property It is good, it then carries out dragging the construction for changing beam, drags and change beam and be located on pile integral structure, drag and change beam for the newly-increased basement floor of rest The fabric structure on top finally completes the earthwork construction and newly-increased basement floor top plate and bottom plate of newly-increased basement floor Construction;This form of construction work solves the problems, such as that original structure basis easily settles, and the use of steel pipe column can be effective Reduce the sectional area of column and is conducive to the cleaning work on column surface.
Further, steel pipe has the insertion section in insertion bored concrete pile, and the periphery for being embedded in section is welded with steel hoop cage, ring Shape steel reinforcement cage is put into stake holes, is embedded between section and stake holes and is filled with concrete;Steel hoop cage is welded on insertion section periphery, When will be embedded in section insertion stake holes, steel hoop cage is embedded in stake holes simultaneously, and the gap filling being embedded between section and stake holes has coagulation Soil, the setting of steel hoop cage further enhance the bonding strength and mechanical property of steel pipe column and bored concrete pile, further increase To the rest effect of changing structure is dragged above basement, rest is firm.
In order to guarantee steel pipe column be it is vertically arranged, in step s 4, after bored concrete pile is inserted into the lower end of steel pipe, to steel pipe Verticality measure, guarantee steel pipe arrange vertically.
Furthermore the bottom of steel pipe is welded with for preventing the second steel reinforcement cage from falling to the support frame outside steel pipe;In this way, passing through The support limit of support frame can be effectively prevented steel reinforcement cage and transfer to outside steel pipe, easy to operate simple.
Specifically, in order to guarantee bored concrete pile be it is vertically arranged, in step s 2, rotary digging formed stake holes after, to stake holes Verticality measures, and guarantees that stake holes is vertical.
Furthermore it drags to change in beam and be provided with for improving the bar construction for dragging the structural strength for changing beam and mechanical property;Reinforcing bar Structure is connect with the steel reinforcement cage in steel pipe column by reinforcement welding;In this manner it is achieved that steel pipe column and the bonding strength for changing beam is dragged, It further promotes steel pipe column and drags the rest intensity and stability for changing beam to the fabric structure above newly-increased basement floor.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.

Claims (6)

1. basement increasing layer underpinning construction method, which is characterized in that change, build for being dragged to fabric structure progress basement increasing layer Building object structure includes the basis of subsurface, the frame column on ground and the building main body on ground;The construction method packet Include following steps:
S1, planning and designing increase the top mark height and bottom absolute altitude of basement floor newly;
S2, from ground, rotary digging forms multiple vertical spaced apart stake holes downwards, and the depth of the stake holes will be more than described newly-increased The bottom elevation location of basement floor;
The first steel reinforcement cage of decentralization and conduit in S3, Xiang Suoshu stake holes, the top of first steel reinforcement cage and the newly-increased underground The bottom elevation location of room floor is located at sustained height, pumps concrete perfusion into the stake holes by conduit and forms bored concrete pile, institute The bottom elevation location at the top and the newly-increased basement floor of stating bored concrete pile is located at sustained height;
S4, the bored concrete pile is inserted into the lower end of steel pipe, the steel pipe is vertically arranged, the top of the steel pipe and described newly-increased The top elevation location of lower room floor is on sustained height;
S5, the second steel reinforcement cage is installed in the steel pipe, after the concrete initial set of the bored concrete pile, is carried out in Xiang Suoshu steel pipe Filling concrete forms steel pipe column after concrete setting;
The construction for changing beam is dragged in S6, completion, and described drag is changed beam and be transversely arranged at the top elevation location of the newly-increased basement floor, institute It states to drag and changes beam and be fixedly connected with the frame column on ground with frame column described in rest, the steel pipe column and described drag change Liang Gu Fixed connection changes beam to drag described in rest;
S7, the earthwork construction for carrying out the newly-increased basement floor form the space of the newly-increased basement floor;
S8, truncation simultaneously clear up the top elevation location frame column below for being located at the newly-increased basement floor;It removes and clears up described The original base of fabric structure.
S9, the top elevation location construction basement roof in the newly-increased basement floor;It is marked at the bottom of the newly-increased basement floor Room bottom plate under high position construction ground.
2. basement increasing layer underpinning construction method as described in claim 1, which is characterized in that the steel pipe has described in insertion The periphery of insertion section in bored concrete pile, the insertion section is welded with steel hoop cage, and the steel hoop cage is put into the stake holes It is interior, concrete is filled between the insertion section and the stake holes.
3. basement increasing layer underpinning construction method as described in claim 1, which is characterized in that in step s 4, by steel pipe After the bored concrete pile is inserted into lower end, the verticality of steel pipe is measured, guarantees that steel pipe is arranged vertically.
4. basement increasing layer underpinning construction method as described in claim 1, which is characterized in that the bottom of the steel pipe is welded with For preventing second steel reinforcement cage from falling to the support frame outside steel pipe.
5. basement increasing layer underpinning construction method as described in claim 1, which is characterized in that in step s 2, rotary digging is formed After stake holes, the verticality of stake holes is measured, guarantees that stake holes is vertical.
6. the basement increasing layer underpinning construction method as described in claim 1-5 any one, which is characterized in that described drag changes beam It is inside provided with for improving the bar construction for dragging the structural strength and mechanical property of changing beam;The bar construction and the steel Steel reinforcement cage in tubing string is connected by reinforcement welding.
CN201910118147.3A 2019-02-15 2019-02-15 Basement storey-adding underpinning construction method Active CN109680978B (en)

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4119259A1 (en) * 1991-06-11 1992-12-17 Kunz Alfred & Co Method for constructing basements under existing building - uses root piles to underpin existing load-bearing walls for construction of concrete ceiling, foundation blocks, support columns
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
CN103205964A (en) * 2013-04-01 2013-07-17 中冶交通工程技术有限公司 Cast-in-place pile construction method using steel pipe column splicing piles
CN104141301A (en) * 2014-03-25 2014-11-12 中国建筑第四工程局有限公司 Construction method and structure for mounting reverse-construction steel pipe column in rotary drilled pile hole
CN105113715A (en) * 2015-08-17 2015-12-02 上海建工二建集团有限公司 Prefabricated column for reverse construction method and underground structure reverse construction method
CN108005399A (en) * 2017-10-31 2018-05-08 上海市政工程设计研究总院(集团)有限公司 Add the construction method for building multi-layer underground space under a kind of existing building group
CN108412225A (en) * 2018-05-17 2018-08-17 南京赛力克建设工程技术有限公司 The underground of existed building adds a layer construction method
CN108643192A (en) * 2018-05-16 2018-10-12 深圳市工勘岩土集团有限公司 Brace in Deep Footing Groove supporting ultralong steel tube column pile construction method

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4119259A1 (en) * 1991-06-11 1992-12-17 Kunz Alfred & Co Method for constructing basements under existing building - uses root piles to underpin existing load-bearing walls for construction of concrete ceiling, foundation blocks, support columns
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
CN103205964A (en) * 2013-04-01 2013-07-17 中冶交通工程技术有限公司 Cast-in-place pile construction method using steel pipe column splicing piles
CN104141301A (en) * 2014-03-25 2014-11-12 中国建筑第四工程局有限公司 Construction method and structure for mounting reverse-construction steel pipe column in rotary drilled pile hole
CN105113715A (en) * 2015-08-17 2015-12-02 上海建工二建集团有限公司 Prefabricated column for reverse construction method and underground structure reverse construction method
CN108005399A (en) * 2017-10-31 2018-05-08 上海市政工程设计研究总院(集团)有限公司 Add the construction method for building multi-layer underground space under a kind of existing building group
CN108643192A (en) * 2018-05-16 2018-10-12 深圳市工勘岩土集团有限公司 Brace in Deep Footing Groove supporting ultralong steel tube column pile construction method
CN108412225A (en) * 2018-05-17 2018-08-17 南京赛力克建设工程技术有限公司 The underground of existed building adds a layer construction method

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