CN103225308B - Pillar construction and comprise the foundation pit support system of this pillar construction - Google Patents
Pillar construction and comprise the foundation pit support system of this pillar construction Download PDFInfo
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- CN103225308B CN103225308B CN201310165186.1A CN201310165186A CN103225308B CN 103225308 B CN103225308 B CN 103225308B CN 201310165186 A CN201310165186 A CN 201310165186A CN 103225308 B CN103225308 B CN 103225308B
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Abstract
A kind of pillar construction, for building foundation pit supporting system, this pillar construction comprises at least one lattice column section and at least one steel pipe section, wherein said each lattice column section is together with in steel pipe section at least two are fixedly attached to by tip member, described tip member comprises the end plate of central authorities with perforate, multiple the first floors and multiple the second floor, the end of wherein said at least two sections is connected by welding to end plate, wherein said the first and second floors are connected to respective section by welding by end plate with the second relative side in the first side of end plate respectively. providing of this tip member realized between column section, for example, reliable connection between steel pipe and lattice column.
Description
Technical field
The present invention relates to a kind of pillar construction for building foundation pit supporting system, and one comprises that this is verticalThe building foundation pit supporting system of rod structure.
Background technology
Along with the rapid development of China's economic and the quickening of the cities and towns process of integration, available soil space is more nextLess, for making full use of non-renewable land resource, building is inevitable to high-altitude and underground development. GroundLower railway, underground garage, market place builet below the ground, basement in high rise building are increasing. Opening to the underground spaceSend out to utilize and in process, inevitably occur deep-foundation pit engineering, and pattern foundation pit supporting structure is the weight in foundation pit constructionPoint link, dark or often adopt inner supporting structure system in Soft Deep Foundation Pit supporting at foundation ditch, at this knotStructure system central post almost all adopts shaped steel lattice column, after underground engineering completes, and all steel lattice columnsBe slit into segment dismounting with gas cutting and be then transported to scrap iron recycle bin.
In prior art, because pillar construction form is single, the key technology in processing and fabricating can not break through,Can only disposablely use, specifically have following weak point:
1), long construction period: owing to adopting single type steel lattice column, when making all by four limb posts orTwo limb posts and a lot of batten plates have welded, and required operation is more loaded down with trivial details, time-consuming, can not meet workThe requirement of phase.
2) steel waste is large: bought the impact of former material and strut length, shaped steel lattice column is inevitableNeed spreading, conventional method is overlap joint at present, and each limb post need to be got the one section material the same with former materialAfter helping to connect, weld again, so not only wasted steel but also increased welding job amount.
3) after welding, quality can not be guaranteed: if shaped steel lattice column adopts limb post butt welding side in the time of spreadingMethod, is first processed into the shaped steel lattice column that some segment length are different, and then carries out limb post according to requirement of engineeringDocking, because each segment type steel lattice column exists deviation to add welding deformation in the time making, at two segment typesIn steel lattice column docking, have misalignment situation, the grade that welding point does not reach in engineering requires by force to exist seriousPotential safety hazard.
4), together with pillar construction must be cast in floor at the scene, do not connect with concrete floor at presentThe crossover tool device that connects and be connected with column, column can not take out and only limit to once use.
5), after major structure of construction completes, must remove support system, in the time removing column, mixing in postSolidifying soil, the fillers such as rubble and mud are difficult for taking out, so both increased dismounting transport difficulty and cost moreBe unfavorable for recycling.
Along with underground engineering is more and more, building industry urgently develops a kind of easy construction, guarantees quality,Produce pillar construction efficient, practical, recoverable.
Summary of the invention
Thus, the object of this invention is to provide a kind of pillar construction, it at least can solve, and part is above-mentioned to be lackedPoint, promotes the recycling of pillar construction.
In first aspect, the invention provides a kind of pillar construction, for building foundation pit supporting system, shouldPillar construction comprises multiple sections, and at least some in wherein said multiple sections are lattice column section, andAt least two sections are fixedly attached to together by tip member, and described tip member comprises that central authorities are with openingThe end plate in hole, multiple the first floor and multiple the second floor, wherein said lattice column end is by weldingBe connected to described end plate, described the first and second floors are respectively in the first side of end plate and relativeTwo sides are connected to corresponding lattice column section by welding by end plate.
Providing of this tip member makes between column section, and for example connection between lattice column section becomesMore easily, reliable. Particularly, the connection between lattice column section no longer needs in traditional method of attachmentAlso insecure docking loaded down with trivial details, consuming time. By tip member of the present invention, lattice column section can facilitateConnect together reliably. Providing of floor increased the intensity and the reliability that connect. In addition the present invention,Tip member also provide lattice column section and other for example, between may section (steel pipe section) canBy connecting.
Floor can comprise and is welded to the first edge of end plate and is welded to lattice column section sideThe second edge. Floor can be square or triangle steel plate. End plate can be square or circular steel plate.The first and second floors can be circumferentially spaced apart around corresponding lattice column section respectively, more preferably between equal angles groundSeparate. Preferably, lattice column section comprises many longitudinal shaped steel, and described floor is corresponding to shaped steel setting,Make the second edge of floor be soldered to the side of corresponding shaped steel.
Accordingly, the present invention also provides a kind of building foundation pit supporting system, comprises column as aboveStructure.
In second aspect, the invention provides a kind of pillar construction, for building foundation pit supporting system, shouldPillar construction comprises at least one lattice column section and at least one steel pipe section, wherein said each lattice columnSection together with in steel pipe section at least two are fixedly attached to by tip member, described tip memberComprise that central authorities are with the end plate of perforate, multiple the first floor and multiple the second floor, at least wherein saidThe end of two sections is connected by welding to end plate, and wherein said the first and second floors are respectively at endThe first side of plate is connected to respective section by welding by end plate with the second relative side, and described theOne and second floor circumferentially spaced apart around respective section respectively.
The connection making between lattice column section that provides of this tip member becomes more light, reliable, thisThe outer reliable connection also making it possible between the realization infeasible steel pipe of script and lattice column.
Floor can comprise and is welded to the first edge of end plate and is welded to of respective section sideTwo edges. The first and second floors can be circumferentially spaced apart around respective section respectively, more preferably equal angles groundSpaced apart.
Steel pipe section can comprise the internal lining pipe that is enclosed within steel duct, so that removing liner when pillar constructionPipe can be removed from steel pipe together with inside stuffing. Providing of internal lining pipe makes to fill in work progressTo the filler of steel duct, as concrete etc. can be removed easily, greatly reduce recyclingThe cost of steel pipe. Internal lining pipe can be by plastic material, composite, fibrous material, foamed material andOne in combination is made. Between internal lining pipe and steel pipe, can there is separation layer. Separation layer comprises releasing agentLayer. This releasing agent layer can, for being coated to the coating of internal lining pipe outer surface and/or steel pipe internal-surface, also canIt is the independent stratum that release agent material forms.
In the third aspect, the invention provides a kind of pillar construction, for building foundation pit supporting system, shouldPillar construction is comprising steel pipe section with at least one floor plates intersection, and described pillar construction also comprises cardConnection device, described clamping apparatus is removably fixedly attached to steel pipe section and comprises multiple cantilever armsPortion, described in stretch out arm and can be poured into and in floor plates, make clamping apparatus, and steel pipe section is solid thusSurely be connected to floor plates.
In the situation that clamping apparatus of the present invention is not provided, because column section is poured in floor plates,In the time removing, column section must cut off at floor plates place. Add upper pillar stand section also need to horizontal supportMember intersection is cut off, and makes in traditional support system, need be cut into very scrappy when column is removedSegment, it has increased complexity and cost to recycling, column can only be served as scrap iron after being removedDeliver to recycle bin. Use clamping apparatus of the present invention, in the time removing, only need to cut off and stretch out arm, thenClamping apparatus is removed from column, the single-piece length of callable column section is increased greatly, reduceCost recovery, organic efficiency is provided, make reusing of pillar construction become feasible.
Preferably, clamping apparatus comprises installation portion, and described installation portion comprises by machanical fastener and being connected toMultiple installation sections together, the pulling force that described multiple sections apply by described machanical fastener clampsBe fixed on the periphery of steel pipe section. Preferably, described steel pipe section comprises round steel pipe, described multipleIt is multiple curved section that section is installed, and described machanical fastener is bolt fastener. Preferably, steel pipe districtSection comprises rectangular steel tube, and described multiple installation sections are linear segments, and described machanical fastener is that bolt is tightFirmware.
Preferably, this pillar construction can comprise at least one lattice column section and at least one steel pipe districtSection, wherein said each lattice column section is fixedly connected with by tip member with in steel pipe section at least twoTo together, described tip member comprises that central authorities are with the end plate of perforate, multiple the first floor and multiple theTwo floors, the end of wherein said at least two sections is connected by welding to end plate, and wherein saidOne connects end plate by welding with the second relative side in the first side of end plate respectively with the second floorReceive respective section. Preferably, floor comprises and is welded to the first edge of end plate and is welded to latticeThe second edge of post section side. Preferably, the first and second floors are respectively around corresponding lattice column section weekTo spaced apart. Preferably, steel pipe section comprises the internal lining pipe that is enclosed within steel duct, to removing columnWhen structure, internal lining pipe can be removed from steel pipe together with inside stuffing. Preferably, internal lining pipe is by plastics materialOne in material, composite, fibrous material, foamed material and combination thereof is made. Preferably, linerBetween pipe and steel pipe, there is separation layer. Preferably, separation layer comprises releasing agent layer.
In fourth aspect, the invention provides a kind of pillar construction, for building foundation pit supporting system, shouldPillar construction comprises at least one steel pipe section, and described steel pipe section comprises the liner that is enclosed within steel ductPipe, so that internal lining pipe can be removed from steel pipe together with inside stuffing in the time removing pillar construction.
Internal lining pipe the filler that makes to be filled into steel duct in work progress is provided, as concrete etc.Can be removed easily, greatly reduced the cost of recycling steel pipe.
Preferably, this pillar construction also comprises at least one lattice column section, wherein said each lattice column districtSection together with in steel pipe section at least two are fixedly attached to by tip member, described tip member bagDraw together central authorities with the end plate of perforate, multiple the first floor and multiple the second floor, wherein said at least twoThe end of individual section is connected by welding to end plate, and wherein said the first and second floors are respectively in terminationThe first side of plate is connected to respective section by welding by end plate with the second relative side. Preferably, ribPlate comprises the second edge that is welded to the first edge of end plate and is welded to lattice column section side. ExcellentSelection of land, the first and second floors are circumferentially spaced apart around corresponding lattice column section respectively. Preferably, internal lining pipeBe provided with the maintaining body that it is removably remained to steel duct. Preferably, maintaining body comprises positionNear flange at least one end of internal lining pipe or be positioned on internal lining pipe outer surface outwards outstanding bulletProperty projection. Preferably, internal lining pipe by plastic material, composite, fibrous material, foamed material andOne in combination is made. Preferably, between internal lining pipe and steel pipe, there is separation layer. Preferably, isolationLayer comprises releasing agent layer.
The feature of a first aspect of the present invention is applicable to of the present invention second to fourth aspect, and vice versa.
Brief description of the drawings
Fig. 1 a shows a kind of schematic elevational view of example lattice column 10, and Fig. 1 b shows a along Fig. 1A-A line intercept viewgraph of cross-section.
Fig. 2 is the portion that substantially shows foundation ditch inner support system 20 according to an embodiment of the inventionDivide schematic elevational view.
Fig. 3 a shows showing of exemplary termination according to an embodiment of the invention connecting elements 30Meaning property top view, Fig. 3 b shows the schematic of the termination connecting elements 30 that has been connected with column sectionSectional view.
Fig. 4 shows the steel pipe section 40 with internal lining pipe 42 according to an embodiment of the inventionExemplary sectional view.
Fig. 5 a shows the schematic cross-sectional of clamping apparatus 50 according to an embodiment of the inventionFigure, Fig. 5 b shows the schematic sectional view of another embodiment of clamping apparatus 60.
Detailed description of the invention
Below with reference to accompanying drawing, the specific embodiment of the present invention is introduced identical reference in each figureLabel represents same or analogous parts. Should be understood that term " on ", D score, " upwards ", " downwards "Directional terms is the description for the orientation shown in accompanying drawing, and these scopes are not restrictive.In addition, the term as " vertically ", " column " so only refers to its direction relative " level " moreAdding vertically, is not to represent that this rod structure must be completely vertical or upright, but can relative level faceOr ground level is so not vertical or upright, can tilt a little. Generally speaking, if not specialIllustrate, term " interior " herein, " outward ", " inner side ", " outside " refer to the orientation with respect to column,Interior and inner side refers to position or the orientation at the center of more close or sensing column, and outer and outside refers to further from columnOrientation or the orientation at center.
Fig. 1 a shows a kind of schematic elevational view of example lattice column 10, and Fig. 1 b shows a along Fig. 1A-A line intercept viewgraph of cross-section. Referring to Fig. 1 a and 1b, wherein show a kind of exemplary latticeThe concrete structure of post 10, wherein lattice column 10 is hollow unit, comprises four angle steel 14 and and angle steelConnected batten plate 12. Adjacent angle steel 14 connects together by being welded to batten plate 12. Polylith batten plate12 is spaced apart along angle steel 14 length directions, and preferably equi-spaced apart is opened, thereby form by adjacent angle steel 14The opening that leads to lattice column inside limiting with adjacent batten plate 12.
Lattice column does not alternately adopt four angle steel to add the structure of batten plate, and can adopt two shaped steel,For example two channel-section steels, I-steel add corresponding batten plate and may be used to form suitable lattice column. Lattice column alsoCan adopt the shaped steel more than any amount of two. Lattice column not necessarily must adopt shaped steel, also canAdopt steel pipe to replace shaped steel. The structure of the lattice column of the introduction of specific embodiment therefore, is not restrictionProperty. Batten plate 12 can arrange that shaped steel is connected to each other at any angle with respect to shaped steel. At toolIn body embodiment, the longitudinal direction of batten plate 12 flatly arranges, arrange perpendicular to angle steel 14, andEvery four of the batten plate that connects four angle steel is arranged on same level height, makes to lead to opening of lattice column insideMouth is aligned with each other, forms the opening that runs through lattice column. Run through the opening of lattice column at least in column and levelSupporting member intersection can allow horizontal support elements easily through lattice column, and connects with lattice columnConnect, to provide the support of horizontal direction for column.
Fig. 2 is that the part that substantially shows foundation ditch inner support system according to an embodiment of the invention is shownMeaning property front view. Support system comprises column 2. Column 2 vertically extends, and divides from top to bottomDo not comprise the first column section 21 being arranged in bored concrete pile 22, the second column district crossing with base plate 24Section 23, and the third and fourth column district crossing with floor plates 26 and horizontal support structure 28 alternatelySection 25,27. Bored concrete pile 22 comprises the steel reinforcement cage 221 arranging around the first column section 21, and logicalCross together with concrete perfusion is firmly attached to steel reinforcement cage 221 with stratum with the first column section 21. The endIt is immediately above that plate 24 is arranged on bored concrete pile 22, and the upper surface 241 of base plate 24 provides in the underground spaceThe bottom floor surface of whole underground structure. Separate for each layer that floor plates 26 is underground structure,And provide the floor of every one deck. Horizontal support structure 28 provides the support of horizontal direction, level for foundation ditchSupporting construction 28 is fixedly connected in its intersection with column 2.
In the time of construction, first, be bored into enough degree of depth downwards. Second step, by under steel reinforcement cage and columnIn hand-hole, arrive and be applicable to position. The 3rd step, cast concrete in hole to form pile foundation. Require stake top markHigh following concrete strength will meet design strength requirement, and general concrete has 0.5 meter to 2 metersThe super height (distance between the height of the relative bored concrete pile end face of height of cast concrete) of filling with. Thus,Column is anchored in bored concrete pile by pouring concrete. After this, can in hole, tamp coarse sand, concrete, stoneThe materials such as ash. After column setting completes, can excavate from top to bottom, and by designing at fixed bitPut and alternately arrange horizontal support elements and floor plates, finally at hole end bottom board. After having constructed,By order from the bottom up, column and horizontal support elements are removed successively.
Also, with reference to accompanying drawing 2, column 2 is formed by connecting by lattice column section and steel pipe section. Termination connects structurePart 30 is used to each section of column to interconnect. Column 2 is steel with the section of floor plates intersectionArea under control section, and be provided with clamping apparatus 50, steel pipe section is by clamping apparatus 50 and respective storey plate phaseConnect. The section that column 2 is connected with horizontal support elements is lattice column section, the running through out of lattice column sectionMouth allows horizontal support elements and link crossing with it more easily. Horizontal support elements can be support ringBeam, can comprise steel construction and/or xoncrete structure.
Although column 2 is steel pipe section with each floor plates intersection in the embodiment shown, this is notNecessary. On the other hand, although column 2 all fills by clamping with each floor plates in the embodiment shownPut 50 and be connected, this neither be necessary. It will be understood by those skilled in the art that column can not beAll comprising steel pipe section all with floor plates intersection, can not be also at all steel pipe sections and floorBetween plate, be all connected by clamping apparatus according to the present invention.
Fig. 3 a shows showing of exemplary termination according to an embodiment of the invention connecting elements 30Meaning property top view, Fig. 3 b shows the schematic of the termination connecting elements 30 that has been connected with column sectionSectional view. Each section of column is fixedly attached to together by termination connecting elements 30. As shown in the figure,Termination connecting elements 30 comprises end plate 32 and floor 34. End plate 32 can be connected for periphery is greater thanConnect any shape of the periphery of section. Periphery herein refers to that more greatly end plate 32 is connected to this and is connectedSection time, the periphery of end plate is surrounded the periphery that is connected section. On end plate 32, there is geometric formPerforate 36. This perforate 36 is less than and is connected the region that the inner surface of section limits, that is to say, whenEnd plate is connected to this perforate while being connected section and is accommodated in the inner side of the inner surface that is connected section. ?In selected embodiment perforate be shaped as circle hole shape, but perforate can be any suitable shape. EffectUpper, preferably the whole end of column and the solid section of end plate (non-perforate part) contact. Shown inIn embodiment, end plate is the square or round plate corresponding to steel pipe shape. End plate thickness can beWithin the scope of 6mm-40mm, be 10mm in the embodiment shown. Floor 34 thickness are can beWithin the scope of 6mm-20mm, be 10mm in the embodiment shown. Be connected section (steel pipe or shaped steel latticeThe post limb of structure parts) end be directly connected to end plate 32 by welding. Floor 34 can be by weldingBy end plate be connected section (the post limbs of steel pipe or shaped steel lattice parts) and additionally link together.Floor geometry can be square or triangle, is triangle in the embodiment shown. Floor can beAny suitable shape, as long as one bar limit can be welded to end plate, and another limit can be welded toBe connected on the side surface of section.
Fig. 4 shows the steel pipe section 40 with internal lining pipe 42 according to an embodiment of the inventionExemplary sectional view. Between steel pipe section 40 and internal lining pipe 42, be provided with interleaving agent 44. Internal lining pipe 42Cross sectional shape is preferably and the matched circle of steel pipe 40 or square. That is to say, when steel pipe is circularWhen steel pipe, internal lining pipe 42 is correspondingly circular, and in the time that steel pipe is rectangular steel tube, internal lining pipe 42 is correspondingGround is square.
Between the inwall of the outer wall of internal lining pipe and steel pipe parts, leave certain interval. This gap preferably existsWithin the scope of 1mm-5mm. For example, in the time that steel pipe is circle, the external diameter of internal lining pipe 42 is slightly less than steel pipe40 internal diameter, so that internal lining pipe 42 can be easily inserted in steel pipe. This inside, gap can be filledThere is release agent layer, prevent that internal lining pipe 42 outer surfaces are bonded to steel pipe. This separation layer can be releasing agent,Releasing agent can be wax (for example plant paraffin, animal paraffin, synthetic paraffin, microcrystalline wax, polyethyleneWax) or powder release agent (such as talcum, mica, potter's clay, white clay etc.). In this case everyCan be for being independent of interior lining panel and steel pipe and being in use arranged on release agent layer between the two from agent layer.But applicant finds most advantageously to adopt concrete parting agent under study for action, spreading upon in construction useOn bushing pipe outer surface or on steel pipe internal-surface, so that pouring concrete rear inner lining pipe is unlikely due to concreteBe bonded to steel pipe internal-surface and be difficult for removing. Therefore, this release agent layer can be to be also coated to outside interior lining panelBarrier coat on surface and/or steel pipe internal-surface, for example concrete parting agent coating as above.
Internal lining pipe is provided with the structure that it is removably remained to steel pipe, such as internal lining pipe at one end or twoEnd is provided with flange, makes when mounted flange be out of shape a little and packs in steel pipe, flange after being in placeThereby set back, internal lining pipe is remained to steel pipe. The setting of flange also helps the accommodating interleaving agent of formationSpace, to remain on interleaving agent in the space being limited by flange, internal lining pipe and steel tube place. Tip memberThe end plate part that extends to steel pipe inner side also can be used to keep internal lining pipe, this tip member is used forSteel pipe section is connected to other sections of column. Alternatively, internal lining pipe can be provided with at least one footpathTo outside elastic bumps, this elastic bumps is in the time that internal lining pipe inserts steel pipe, in the effect of steel pipe internal-surfaceLower strain and utilize local friction coordinate internal lining pipe is held in place. In a word, holding structure can beAny structure it is contemplated that, as long as it can remain on internal lining pipe in steel pipe, and is usingAfter finishing, can allow internal lining pipe easily to be removed from steel pipe, so that the recycling of steel pipe.
Internal lining pipe can adopt any material to make. Under study for action, applicant finds to adopt and has high expansionProperty material can prevent better internal lining pipe in grouting and the mixed earth process of filling because inside holdsMaterial expand and cause breaking. Therefore, the material of internal lining pipe can be preferably plastic material, particularlyAny in thermoplastic, composite, fibrous material, foamed material etc. and combination thereof. LinerThe wall thickness of pipe 42 can be within the scope of 1mm-20mm.
Fig. 5 a shows the schematic cross-sectional of clamping apparatus 50 according to an embodiment of the inventionFigure, Fig. 5 b shows the schematic sectional view of another embodiment of clamping apparatus 60. Clamping apparatus 50,60 can removably be fixedly attached to steel pipe periphery, and have multiple arms that stretch out, for being poured into buildingIn laminate, make clamping apparatus be fixedly connected with floor plates.
Particularly, referring to Fig. 5 a, clamping apparatus 50 comprises the first slender member 52 and the second slender member54. The relative two sides of the first and second slender member 52,54 laminating rectangular steel tubes, and by multipleConnect together to bolted. Particularly, the first and second slender members 52,54 comprise respectively rightThe perforate of answering, bolt is through these perforates and apply clamping force to make the first and second slender members 52,54 are clamped to respectively described two opposite side surfaces. The two ends of the first and second slender members 52,54 exceedThe periphery of steel pipe section stretches out, and forms corresponding four and stretches out arm 56. Thus, when being fastened to steelOn pipe time, each end of the first and second slender members 52,54 can be cast in floor plates, fromAnd steel pipe section is secured to floor plates. In the embodiment shown, clamping apparatus 50 also comprises the 3rd HeThe 4th slender member, it is identical with the first and second slender members 52,54, but clamps and be fixed toAnother two relative sides of rectangular steel tube. The third and fourth slender member is set to first and second thinLong member 52,54 is adjacent. That is to say, the third and fourth slender member is oriented to and first and secondSlender member 52,54 is substantially orthogonal, and is tightened to this another two relative sides by bolt clip. InstituteShow in embodiment, clamping apparatus 50 comprises first, second, third and the 4th slender member, but this alsoNot necessarily, clamping apparatus can only include two (first and second or third and fourth) elongated structuresPart, thus it has four and stretches out arm, or can comprise more slender members.
Referring to Fig. 5 b, clamping apparatus 60 is for releasably fastening to round steel pipe, and comprises the first arcShape section 62 and the second curved section 64. The first and second curved section 62,64 are arranged on round steel pipePeriphery on, and the clamping force applying by bolt is clamped to round steel pipe. Particularly, the first HeThe second curved section 62,64 two ends comprise respectively the perforation of aligning, wherein bolt through these holes by theOne and second curved section 62,64 connect and pull to each other, thereby apply clamping force by first and secondCurved section 62,64 is clamped on round steel pipe. Clamping apparatus 60 also comprises multiple arms 66 that stretch out,It is connected to the first and second curved section 62,64 protruding from it. Stretching out arm 66 can lead toThe modes such as welding, riveted joint, machanical fastener (being for example threaded etc.) of crossing are fixedly attached to first andTwo curved section 62,64. Similarly, stretching out arm 66 can be cast in floor plates, thereby by steelArea under control section is secured to floor plates.
Although show each concrete embodiment herein, they are not restrictive. This area skillArt personnel can expect implementing various substitute mode of the present invention or amendment under design of the present invention. ExampleAs, clamping apparatus is not limited to two kinds of above-mentioned concrete forms, as long as clamping apparatus can be detachableBe connected to steel pipe section, and provide protruding to be poured into the arm in floor plates. Each feature is retouchedBe set forth in different embodiment and do not represent that they can not be combined, each feature in each embodiment can thatThis enforcement that is grouped together, to realize more favourable effect.
Claims (7)
1. a pillar construction, for building foundation pit supporting system, this pillar construction comprises at least oneLattice column section and at least one steel pipe section, in wherein said each lattice column section and steel pipe section extremelyFew two are fixedly attached to together by tip member, and described tip member comprises the end of central authorities with perforatePlate, multiple the first floor and multiple the second floor, the end of wherein said at least two sections is by welderingReceive in succession end plate, wherein said the first and second floors respectively in the first side of end plate with relativeThe second side is connected to respective section by welding by end plate, and wherein said floor comprises and is welded to end plateThe first edge and be welded to the second edge of respective section side.
2. pillar construction as claimed in claim 1, wherein said the first and second floors are respectively around phaseAnswer the circumferential equal angles of section ground spaced apart.
3. pillar construction as claimed in claim 1, wherein said steel pipe section comprises and being enclosed within steel pipeThe internal lining pipe of portion, so that internal lining pipe can be torn open from steel pipe together with inside stuffing in the time removing pillar constructionRemove.
4. pillar construction as claimed in claim 3, wherein said internal lining pipe is by plastic material, compoundOne in material, fibrous material, foamed material and combination thereof is made.
5. pillar construction as claimed in claim 3, has separation layer between described internal lining pipe and steel pipe.
6. pillar construction as claimed in claim 5, described separation layer comprises releasing agent layer.
7. a building foundation pit supporting system, comprises the column as described in any one in claim 1-6Structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310165186.1A CN103225308B (en) | 2013-05-08 | 2013-05-08 | Pillar construction and comprise the foundation pit support system of this pillar construction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310165186.1A CN103225308B (en) | 2013-05-08 | 2013-05-08 | Pillar construction and comprise the foundation pit support system of this pillar construction |
Publications (2)
| Publication Number | Publication Date |
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| CN103225308A CN103225308A (en) | 2013-07-31 |
| CN103225308B true CN103225308B (en) | 2016-05-25 |
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| CN201310165186.1A Expired - Fee Related CN103225308B (en) | 2013-05-08 | 2013-05-08 | Pillar construction and comprise the foundation pit support system of this pillar construction |
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| CN106193051B (en) * | 2016-08-31 | 2018-07-31 | 中铁二十局集团有限公司 | Upper-soft lower-hard ground Metro station excavation support system and its construction method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001214516A (en) * | 2000-02-03 | 2001-08-10 | Daiwa House Ind Co Ltd | Structure for fixing pedestal part of rectangular steel pipe column |
| CN201581553U (en) * | 2009-12-10 | 2010-09-15 | 浙江华铁基础工程有限公司 | Square flange joint of lattice column |
| CN101838986A (en) * | 2009-03-17 | 2010-09-22 | 上海市机械施工有限公司 | Disassembling tool type lattice column and construction method thereof |
| CN202073100U (en) * | 2011-05-17 | 2011-12-14 | 中建六局建设发展有限公司 | Temporary vertical steel support structure for compensating displacement or missed piling of steel lattice columns |
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2013
- 2013-05-08 CN CN201310165186.1A patent/CN103225308B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001214516A (en) * | 2000-02-03 | 2001-08-10 | Daiwa House Ind Co Ltd | Structure for fixing pedestal part of rectangular steel pipe column |
| CN101838986A (en) * | 2009-03-17 | 2010-09-22 | 上海市机械施工有限公司 | Disassembling tool type lattice column and construction method thereof |
| CN201581553U (en) * | 2009-12-10 | 2010-09-15 | 浙江华铁基础工程有限公司 | Square flange joint of lattice column |
| CN202073100U (en) * | 2011-05-17 | 2011-12-14 | 中建六局建设发展有限公司 | Temporary vertical steel support structure for compensating displacement or missed piling of steel lattice columns |
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| CN103225308A (en) | 2013-07-31 |
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