CN102852150A - Superposed inner support structure for foundation pit support - Google Patents

Superposed inner support structure for foundation pit support Download PDF

Info

Publication number
CN102852150A
CN102852150A CN2012103855708A CN201210385570A CN102852150A CN 102852150 A CN102852150 A CN 102852150A CN 2012103855708 A CN2012103855708 A CN 2012103855708A CN 201210385570 A CN201210385570 A CN 201210385570A CN 102852150 A CN102852150 A CN 102852150A
Authority
CN
China
Prior art keywords
supporting structure
shaped steel
steel
foundation pit
support
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN2012103855708A
Other languages
Chinese (zh)
Other versions
CN102852150B (en
Inventor
刘全林
赵元一
宋伟民
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Qiangjin Foundation Engineering Co Ltd
Original Assignee
Shanghai Qiangjin Foundation Engineering Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Qiangjin Foundation Engineering Co Ltd filed Critical Shanghai Qiangjin Foundation Engineering Co Ltd
Priority to CN201210385570.8A priority Critical patent/CN102852150B/en
Publication of CN102852150A publication Critical patent/CN102852150A/en
Application granted granted Critical
Publication of CN102852150B publication Critical patent/CN102852150B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The invention provides a superposed inner support structure for a foundation pit support. At least a superposed structure is arranged in the inner support structure, so that the requirements of pressure change of different-depth soil layers are met, the supporting stability is improved, the support number is reduced, the inner space of a foundation pit is enlarged, and the earthwork excavation and transportation and the construction of an underground main structure are convenient. With the superposed inner support structure, the purposes of shortening the construction period and reducing the engineering construction cost are achieved.

Description

A kind of pattern foundation pit supporting structure stack inner supporting structure
Technical field
The present invention relates to technical field of civil engineering, particularly the pattern foundation pit supporting structure inner supporting structure.
Background technology
In foundation pit supporting construction, inner support supporting and protection structure supports for commonly used, mainly contains reinforced concrete support and steel and supports.Existing steel inner support is generally steel pipe support and type steel support, its specification changes less, and when running into the larger deep foundation ditch of soil pressure, the steel of model commonly used supports, bearing capacity is limited, so must seek the requirement that a kind of braced structures safe and reliable and reasonable price reaches bearing capacity.
Summary of the invention
Technical problem to be solved by this invention is, overcomes the little problem of inner support bearing capacity in the existing pattern foundation pit supporting structure, and a kind of pattern foundation pit supporting structure stack inner supporting structure is provided.
In order to address the above problem, technical scheme of the present invention is such:
A kind of pattern foundation pit supporting structure superposing type inner supporting structure, be provided with in the foundation ditch and enclose purlin, multiple tracks is enclosed purlin and is connected with the multiple tracks type steel support, it is characterized in that, at least one type steel support is the superposing type structure, the edge of a wing face of two-layer H shaped steel and shaped steel is parallel to each other about being distributed with on the described superposing type structural section, is interconnected to form inner supporting structure one between the two-layer H shaped steel.
Connect by the another H shaped steel that intersects between the described two-layer H shaped steel, the top flange face of the bottom flange face of the edge of a wing face of described another H shaped steel and upper strata H shaped steel and lower floor's shaped steel is fitted.
Described another H shaped steel connects upper strata H shaped steel and the H of lower floor shaped steel by dismountable bolt.
Be connected with dismountable bolt between the described two-layer H shaped steel.
Be provided with in foundation ditch for the column that supports type steel support, column is provided with bearing plate in support place of every stratotype steel, and bearing plate is positioned at the soffit place of H type steel support, and at the H of superposing type structure type steel support place, bearing plate is positioned at the soffit place of the H of lower floor shaped steel.
Spacing between the two-layer shaped steel is≤4m.
The purlin that encloses of foundation pit side-wall is that fish belly sill encloses purlin, and fish belly sill comprises, lower-cord beam, web member and the muscle that winds up; Lower-cord beam is straight, and the muscle that winds up is arc, and two ends of lower-cord beam and the muscle that winds up join, the web member lower end is fixed on the lower-cord beam, and the upper end contacts with the muscle that winds up, and forms a fish belly shape structure, the muscle that winds up is applied with prestressing force, and the joint of lower-cord beam and the muscle that is connected connects the end of type steel support.
Beneficial effect, pattern foundation pit supporting structure of the present invention superposing type inner supporting structure has satisfied the requirement that different depth soil layer pressure changes, and improves stability of strutting system, reduces and supports the road number, enlarges the foundation ditch inner space, and fortune and underground main structure construction are dug in the convenient earthwork; Reach the reduction of erection time, reduced the purpose of construction costs
Description of drawings
Describe the present invention in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is pattern foundation pit supporting structure of the present invention superposing type inner support syndeton schematic diagram.
Fig. 2 is inner support cross section structure schematic diagram of the present invention.
The specific embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
Referring to Fig. 1, foundation ditch adopts inner supporting structure in the present embodiment, inner support is steel structure girder 1, steel structure girder 1 two end supports is being enclosed on the purlin, steel structure girder 1 is made of side by side many shaped steel, be that eight shaped steel support side by side in the present embodiment, eight shaped steel laterally interfix by junction plate, vertically are bolted to reach the length extension.The shaped steel radical that steel structure girder 1 includes is chosen according to the actual loading situation.
Referring to Fig. 2, on the longitudinal cross-section of foundation ditch, the inner support of foundation ditch is three roads, and it is the support of one deck formed steel construction that first supports 11, and the end that first supports connects by shaped steel 2 encloses purlin.Be provided with an A-frame 3 in the bottom of shaped steel 2, A-frame 3 is used for supporting shaped steel 2 and first supports 11 junction, end.
It is the support of two-layer steel work that second supports 12, and two-layer steel structure support stacks up and down, and the centre is provided with shaped steel and connects.Second supports 12 end and connects by two shaped steel 2 up and down and enclose purlin, also connects by shaped steel between two shaped steel 2 up and down.Bottom at the shaped steel 2 of lower floor is provided with an A-frame 3, and A-frame 3 is used for supporting shaped steel 2 and second supports 12 junction, end.Distance between the two-layer steel work is less than or equal to 4 meters; This distance can change according to actual actual conditions, is generally 30 centimetres to 60 centimetres.
The 3rd road support 13 with second to support 12 structures identical.Perhaps the 3rd road supports the structure that also can adopt first to support.Specifically which road supports the steel work that adopts stack double-deck in a foundation ditch, can change according to the actual loading situation, has reached the purpose of stability under loading.
In foundation ditch, be provided with for the column 5 that supports type steel support, column 5 is provided with bearing plate 51 in support place of every stratotype steel, is provided with the shaped steel crossbeam on the bearing plate 51, bearing plate 51 be positioned at type steel support below, at the type steel support place of superposing type structure, bearing plate 51 be positioned at lower floor's shaped steel below.
The purlin that encloses of foundation pit side-wall is that fish belly sill encloses purlin, and fish belly sill encloses purlin 4 and comprises a lower-cord beam 41, steel strand 42, web member 43.
Its lower-cord beam 41 is assembled by section steel material; Its steel strand 42 are comprised of many high-strength underrelaxation steel hinge lines, adopt the plastic cement pipe box to play and fill with grease protection and isolation between the every steel strand.
Its web member 43 assembles wooden font or yi word pattern by section steel material; Web member 43 arranges on the string beam 41, and the two ends of steel strand 42 connect lower-cord beam 41 two ends, and the middle part of steel strand 42 is supported by web member 43 and is the fish belly shape.
Pattern foundation pit supporting structure of the present invention superposing type inner supporting structure, the advantages such as support stiffness is large, span is large, distortion can control, easy construction, reusing have reached the reduction of erection time, have reduced the purpose of construction costs.
More than show and described basic principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not subjected to the restriction of above-mentioned example; that describes in above-mentioned example and the manual just illustrates principle of the present invention; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.

Claims (7)

1. pattern foundation pit supporting structure superposing type inner supporting structure, be provided with in the foundation ditch and enclose purlin, multiple tracks is enclosed purlin and is connected with the multiple tracks type steel support, it is characterized in that, at least one type steel support is the superposing type structure, the edge of a wing face of two-layer H shaped steel and shaped steel is parallel to each other about being distributed with on the described superposing type structural section, is interconnected to form inner supporting structure one between the two-layer H shaped steel.
2. a kind of pattern foundation pit supporting structure superposing type inner supporting structure according to claim 1, it is characterized in that, connect by the another H shaped steel that intersects between the described two-layer H shaped steel, the top flange face of the bottom flange face of the edge of a wing face of described another H shaped steel and upper strata H shaped steel and lower floor's shaped steel is fitted.
3. a kind of pattern foundation pit supporting structure superposing type inner supporting structure according to claim 2 is characterized in that, described another H shaped steel connects upper strata H shaped steel and the H of lower floor shaped steel by dismountable bolt.
4. a kind of pattern foundation pit supporting structure superposing type inner supporting structure according to claim 1 and 2 is characterized in that, is connected with dismountable bolt between the described two-layer H shaped steel.
5. a kind of pattern foundation pit supporting structure superposing type inner supporting structure according to claim 1, it is characterized in that, in foundation ditch, be provided with for the column that supports type steel support, column is provided with bearing plate in support place of every stratotype steel, bearing plate be positioned at the H type steel support below, at the H of superposing type structure type steel support place, bearing plate be positioned at the H of lower floor shaped steel below.
6. a kind of pattern foundation pit supporting structure superposing type inner supporting structure according to claim 1 is characterized in that the spacing between the two-layer shaped steel is≤4m.
7. a kind of pattern foundation pit supporting structure superposing type inner supporting structure according to claim 1 is characterized in that, the purlin that encloses of foundation pit side-wall is that fish belly sill encloses purlin, and fish belly sill comprises, lower-cord beam, web member and the muscle that winds up; Lower-cord beam is straight, and the muscle that winds up is arc, and two ends of lower-cord beam and the muscle that winds up join, the web member lower end is fixed on the lower-cord beam, and the upper end contacts with the muscle that winds up, and forms a fish belly shape structure, the muscle that winds up is applied with prestressing force, and the joint of lower-cord beam and the muscle that is connected connects the end of type steel support.
CN201210385570.8A 2012-10-12 2012-10-12 Superposed inner support structure for foundation pit support Active CN102852150B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210385570.8A CN102852150B (en) 2012-10-12 2012-10-12 Superposed inner support structure for foundation pit support

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210385570.8A CN102852150B (en) 2012-10-12 2012-10-12 Superposed inner support structure for foundation pit support

Publications (2)

Publication Number Publication Date
CN102852150A true CN102852150A (en) 2013-01-02
CN102852150B CN102852150B (en) 2014-08-13

Family

ID=47399093

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210385570.8A Active CN102852150B (en) 2012-10-12 2012-10-12 Superposed inner support structure for foundation pit support

Country Status (1)

Country Link
CN (1) CN102852150B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105951848A (en) * 2016-07-01 2016-09-21 杭州江润科技有限公司 Non-intermittent composite transfer structure for super-deep foundation pit support and construction method
CN107700494A (en) * 2017-09-20 2018-02-16 中国十七冶集团有限公司 A kind of deep foundation pit steel tube inner support prestress application device
CN109083156A (en) * 2018-09-04 2018-12-25 东华理工大学 A kind of pattern foundation pit supporting structure inner supporting structure and its application method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101289862A (en) * 2008-04-09 2008-10-22 中交三航局第二工程有限公司 Foundation ditch construction method in water for supporting circuit purlin
CN201151909Y (en) * 2007-11-15 2008-11-19 王平 Deep pit composite structure annular inner support
CN101310078A (en) * 2005-11-16 2008-11-19 斯博泰科有限公司 Apparatus for fixing a wale
CN201962684U (en) * 2011-02-09 2011-09-07 云南建工水利水电建设有限公司 Internal support wale reinforcing device
CN202787271U (en) * 2012-10-12 2013-03-13 上海强劲地基工程股份有限公司 Stacked inner supporting structure for foundation pit supporting

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101310078A (en) * 2005-11-16 2008-11-19 斯博泰科有限公司 Apparatus for fixing a wale
CN201151909Y (en) * 2007-11-15 2008-11-19 王平 Deep pit composite structure annular inner support
CN101289862A (en) * 2008-04-09 2008-10-22 中交三航局第二工程有限公司 Foundation ditch construction method in water for supporting circuit purlin
CN201962684U (en) * 2011-02-09 2011-09-07 云南建工水利水电建设有限公司 Internal support wale reinforcing device
CN202787271U (en) * 2012-10-12 2013-03-13 上海强劲地基工程股份有限公司 Stacked inner supporting structure for foundation pit supporting

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105951848A (en) * 2016-07-01 2016-09-21 杭州江润科技有限公司 Non-intermittent composite transfer structure for super-deep foundation pit support and construction method
CN105951848B (en) * 2016-07-01 2018-06-19 浙江新曙光建设有限公司 Ultra-deep foundation pit supports Non-intermittent combined type transformational structure and construction method
CN107700494A (en) * 2017-09-20 2018-02-16 中国十七冶集团有限公司 A kind of deep foundation pit steel tube inner support prestress application device
CN109083156A (en) * 2018-09-04 2018-12-25 东华理工大学 A kind of pattern foundation pit supporting structure inner supporting structure and its application method

Also Published As

Publication number Publication date
CN102852150B (en) 2014-08-13

Similar Documents

Publication Publication Date Title
CN202787271U (en) Stacked inner supporting structure for foundation pit supporting
CN102839678B (en) Structure for improving rigidity and stability of foundation pit steel support
CN104453274B (en) Utilize supporting and protection structure and underpinning structure to support existing building underground and increase layer method
CN102691302B (en) Concrete structure for supporting deep foundation pit
CN102418385A (en) Novel reinforced concrete prefabricated whole-poured building structure system and construction method thereof
CN205806684U (en) A kind of across base pit engineering conduit wiring suspension structure
CN202755370U (en) Structure for improving rigidity and stability of foundation pit steel support
CN102852150B (en) Superposed inner support structure for foundation pit support
CN105332388A (en) Assembled concrete-filled steel tubular column cap type tower crane foundation structure and construction method
CN204151798U (en) A kind of steel reinforced concrete anti-slide pile structure
CN102418381B (en) Building structure system combined with steel beam and pre-tensioned prestressing superposed beam and construction method for building structure system
CN107246016A (en) A kind of suspension type inner support system and foundation ditch construction method suitable for base pit engineering
CN103967018B (en) Deep big foundation pit angle support level shear structure
CN108265752A (en) Spell the more cabin underground pipe galleries of cabin formula
CN210712576U (en) Multi-hoop truss supporting bailey bracket for cast-in-situ large-span box girder
CN210049103U (en) High-grade high-speed highway bracket spanned by large-span cast-in-place box girder
CN203270588U (en) Mini-pile antiskid structure
CN208533563U (en) Single cabin piping lane and the spelling flat underground pipe gallery in the more cabins of cabin formula
CN103510458B (en) Pile type continuous rigid frame bridge and construction method thereof
CN207092108U (en) A kind of suspension type inner support system suitable for base pit engineering
CN105113387A (en) Reconstruction structure and construction method of bridge bearing platform
CN104234063A (en) Structure of steel-reinforced concrete slide-resistant pile
CN203939030U (en) Deep big foundation pit angle support level shear structure
CN103321449A (en) Processing method of building story adding through frame structure
JP2018003523A (en) Pile foundation structure, and reinforcement method for existing pile

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C53 Correction of patent for invention or patent application
CB03 Change of inventor or designer information

Inventor after: Liu Quanlin

Inventor after: Song Weimin

Inventor after: Ding Qingpeng

Inventor after: Zhao Yuanyi

Inventor before: Liu Quanlin

Inventor before: Zhao Yuanyi

Inventor before: Song Weimin

COR Change of bibliographic data

Free format text: CORRECT: INVENTOR; FROM: LIU QUANLIN ZHAO YUANYI SONG WEIMIN TO: LIU QUANLIN SONG WEIMIN DING QINGPENG ZHAO YUANYI

C14 Grant of patent or utility model
GR01 Patent grant