CN103669370B - Recoverable combined groove excavation foundation fit supporting device and construction method - Google Patents
Recoverable combined groove excavation foundation fit supporting device and construction method Download PDFInfo
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- CN103669370B CN103669370B CN201310717728.1A CN201310717728A CN103669370B CN 103669370 B CN103669370 B CN 103669370B CN 201310717728 A CN201310717728 A CN 201310717728A CN 103669370 B CN103669370 B CN 103669370B
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- piling bar
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- rectangular opening
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Abstract
The invention relates to a foundation pit supporting device, in particular to a recoverable combined groove excavation foundation fit supporting device and a construction method. According to the technical scheme, the supporting device comprises a groove type steel pile (7) and a longitudinal support (6) and is characterized in that the upper portion of the groove type steel pile (7) is a closed rectangle, side rectangular holes (73) are formed in the two opposite sides of the rectangle, forward rectangular holes (74) are formed in the other two opposite sides of the rectangle, the side rectangular holes (73) are connected with the longitudinal support (6), the forward rectangular holes (74) are connected with an upper horizontal support (4), the lower portion of the groove type steel pile (7) is an open rectangle, the groove type steel pile (7) is provided with a side plate (71) and a guide opening (72), the side plate (71) abuts against a mud guard (8), and a lower horizontal support (5) is placed in the guide opening (72) and abuts against the inner side of the lower portion of the groove type steel pile (7). The recoverable combined groove excavation foundation fit supporting device and the construction method have the advantages that construction, disassembly and assembly are convenient, reutilization is achieved, and the cost is reduced.
Description
Technical field
the present invention relates to a kind of foundation pit support device, especially a kind of recyclable Combined groove excavation pit suspension device and construction method.
Background technology
for the various pipelines burying municipal engineering underground must excavate groove.Compare with architecture Foundation Pit Engineering, civicism trench excavation has following features: 1, groove is wire, and width is narrow, different and pipeline self the gradient requirement with ground level, and gash depth constantly changes; 2, channel excavation place is often positioned at bustling location, city, and both sides building closes on, and the existing pipeline in underground is complicated, and traffic above-ground inconvenience is interrupted; 3, the channel excavation time is short, is often the backfill of excavation limit, limit.
because the channel excavation time is short, the slope soil formed even not and distortion, soil stress not and release, therefore, in Practical Project, channel excavation pattern foundation pit supporting structure usually adopts and only sets vertical channel-section steel and do not do horizontal support or simply put the temporary measures such as slope, construction safety can not ensure, the problem such as foundation pit collapse, existing pipeline failure happens occasionally.And as adopted building foundation pit supporting method (as punching, bored pile, hole digging pile, deep-mixed pile, rotary churning pile, SMW engineering method etc.), then waste time and energy not only but also uneconomical.Therefore, the suspension device meeting civicism trench excavation feature and corresponding construction method is needed.
Summary of the invention
the invention provides a kind of recyclable Combined groove excavation pit suspension device and construction method thereof, it can not only meet intensity, the rigidity requirement of civicism trench excavation to support system, and can construct easily, dismounting, recycling, improve efficiency of construction, save material and duration, reduce costs.
the technical solution used in the present invention: it comprises grooved piling bar 7 and longitudinal bracing 6, it is characterized in that: the top of described grooved piling bar 7 is in the rectangle closed, side direction rectangular opening 73 and forward rectangular opening 74 is had at the opposite side of rectangle, described side direction rectangular opening 73 is connected with longitudinal bracing 6, and described forward rectangular opening 74 is connected with upper horizontal support 4; The bottom of described grooved piling bar 7 is the rectangle of opening, and is shaped with side plate 71 and targeting port 72, and described side plate 71 is abutted against with mud guard 8, places lower horizontal support 5, and be against the inner side of the bottom of grooved piling bar 7 in described targeting port 72.
construction method of the present invention is: first, hole to desired depth in stake holes position according to surveying setting-out, after pore-forming, grooved piling bar 7 is implanted in the stake holes of groove both sides, also plant equipment can be adopted directly grooved piling bar 7 to be pressed into pre-fixed pile, and the gap between grooved piling bar 7 is directly pressed into mud guard 8; The second, the grooved piling bar 7 of groove side is linked into an integrated entity along groove longitudinal bracing 6 and billet 41, nut 42 by side direction rectangular opening 73; 3rd, the grooved piling bar 7 of groove both sides is connected to form entirety by forward rectangular opening 74 and upper horizontal support 4 and billet 41, nut 42; 4th, be excavated to channel bottom 2, the targeting port 72 of lower horizontal support 5 crossheading Section-steel Piles 7 is placed channel bottom 2; 5th, lay pipeline, backfill groove; 6th, loosen the constraint of longitudinal bracing 6 pairs of grooved piling bars 7; 7th, adopt horizontal support 4 and grooved piling bar 7 in jack jacking.
beneficial effect of the present invention is: can construct easily, dismounting, recycling, improve efficiency of construction, save material and duration, reduce costs, take into full account that civicism trench excavation is different from the feature of architectural engineering pit, avoid the waste blindly adopting architectural engineering pit support technology to cause, ensure that the safety that civicism trench excavates.
Accompanying drawing explanation
fig. 1 is sectional view of the present invention;
fig. 2 is top view of the present invention;
fig. 3 is substructure top view of the present invention;
fig. 4 is the lateral view of middle slot Section-steel Piles of the present invention;
fig. 5 is the sectional view of the A-A of Fig. 4;
fig. 6 is the sectional view of the B-B of Fig. 4;
in figure: 1, ground 2, channel bottom 3, pipeline 4, upper horizontal support 41, billet 42, nut 5, lower horizontal support 6, longitudinal bracing 7, grooved piling bar 71, side plate 72, targeting port 73, side direction rectangular opening 74, forward rectangular opening 8, mud guard 9, turnbuckle screw.
Detailed description of the invention
below in conjunction with specification drawings and specific embodiments, the present invention is described in further detail.
as shown in figures 1 to 6, the present invention includes grooved piling bar 7 and longitudinal bracing 6, it is characterized in that: the top of described grooved piling bar 7 is in the rectangle closed, side direction rectangular opening 73 and forward rectangular opening 74 is had at the opposite side of rectangle, described side direction rectangular opening 73 is connected with longitudinal bracing 6, and described forward rectangular opening 74 is connected with upper horizontal support 4.The object offering side direction rectangular opening 73 and forward rectangular opening 74 is the convenient height regulating longitudinal bracing 6 and upper horizontal support 4, and solving grooved piling bar 7 may by soil layer affects in the difficulty of same absolute altitude.
the bottom of described grooved piling bar 7 is the rectangle of opening, and is shaped with side plate 71 and targeting port 72, and described side plate 71 is abutted against with mud guard 8, places lower horizontal support 5, and be against the inner side of the bottom of grooved piling bar 7 in described targeting port 72.Wherein, side plate 71 is as the supporting member of mud guard 8; And guide strip 72 both can be used as the reinforcement of grooved piling bar 7 bottom, again can to lower horizontal support 5 constraint and guide effect.As soon as groove excavation of earthwork is to design elevation when lower horizontal support 5 is constructed, targeting port 72 by its crossheading Section-steel Piles 7 places channel bottom 2, lower horizontal support 5 ensure that not slide in groove foundation ditch because of soil pressure effect in grooved piling bar 7 bottom, also doubled as institute's pipe laying road vertical elevation orientation tool, lower horizontal support 5 by indwelling in groove foundation ditch.
construction method of the present invention is: look construction ability, the requirement of excavation section ground traffic organization, excavation section periphery dangerous matter sources and obstruction, construction period requirement etc. by channel excavation equitable subsection; Then following steps are taked: first, hole to desired depth in stake holes position according to surveying setting-out, after pore-forming, grooved piling bar 7 is implanted in the stake holes of groove both sides, also plant equipment can be adopted directly grooved piling bar 7 to be pressed into pre-fixed pile, grooved piling bar 7 longitudinally can gather continuously along groove, also can arrange with certain interval, the gap between grooved piling bar 7 can adopt excavation of earthwork machine to be directly pressed into mud guard 8; The second, the grooved piling bar 7 of groove side is linked into an integrated entity along groove longitudinal bracing 6 and billet 41, nut 42 by side direction rectangular opening 73; 3rd, the grooved piling bar 7 of groove both sides is connected to form entirety by forward rectangular opening 74 and upper horizontal support 4 and billet 41, nut 42, piling wall is gone along with sb. to guard him in composition both sides, and the connection supporting role by regulating turnbuckle screw 9 to strengthen horizontal support, quantity, spacing etc. that upper horizontal support 4 is arranged look design needs, can arrange one in about 3 meters, interval; 4th, be excavated to channel bottom 2, the targeting port 72 of lower horizontal support 5 crossheading Section-steel Piles 7 is placed channel bottom 2; 5th, lay pipeline, backfill groove; 6th, loosen the constraint of longitudinal bracing 6 pairs of grooved piling bars 7; 7th, adopt horizontal support 4 and grooved piling bar 7 in jack jacking.
upper horizontal support 4 of the present invention is the steel pole of TBE (threaded both ends), middle part band turnbuckle screw 9.The object arranging turnbuckle screw 9 is the length that can be used for regulating horizontal support 4 easily, and the constraint between piling wall is gone along with sb. to guard him in strengthening groove both sides.
mud guard 8 of the present invention adopts steel plate or plank.
lower horizontal support 5 of the present invention is round log.
Claims (5)
1.
a kind of recyclable Combined groove excavation pit suspension device, it comprises grooved piling bar (7) and longitudinal bracing (6), it is characterized in that: the top of described grooved piling bar (7) is in the rectangle closed, side direction rectangular opening (73) and forward rectangular opening (74) is had at the opposite side of rectangle, described side direction rectangular opening (73) is connected with longitudinal bracing (6), and described forward rectangular opening (74) is connected with upper horizontal support (4); The bottom of described grooved piling bar (7) is the rectangle of opening, and be shaped with side plate (71) and targeting port (72), described side plate (71) and mud guard (8) are abutted against, and place lower horizontal support (5), and be against the inner side of the bottom of grooved piling bar (7) in described targeting port (72).
2.
recyclable Combined groove excavation pit suspension device according to claim 1, is characterized in that: described upper horizontal support (4) is TBE (threaded both ends), the steel pole at middle part band turnbuckle screw (9).
3.
recyclable Combined groove excavation pit suspension device according to claim 1, is characterized in that: described mud guard (8) adopts steel plate or plank.
4.
recyclable Combined groove excavation pit suspension device according to claim 1, is characterized in that: described lower horizontal support (5) is round log.
5.
the construction method of recyclable Combined groove excavation pit suspension device according to claim 1, is characterized in that: the first, holes to desired depth in the stake holes position according to surveying setting-out, is implanted by grooved piling bar (7) in the stake holes of groove both sides after pore-forming; Or adopting plant equipment directly grooved piling bar (7) to be pressed into pre-fixed pile, the gap between grooved piling bar (7) is directly pressed into mud guard (8); The second, the grooved piling bar (7) of groove side is linked into an integrated entity along groove longitudinal bracing (6) and billet (41), nut (42) by side direction rectangular opening (73); 3rd, the grooved piling bar (7) of groove both sides is connected to form entirety by forward rectangular opening (74) and upper horizontal support (4) and billet (41), nut (42); 4th, be excavated to channel bottom (2), the targeting port (72) of lower horizontal support (5) crossheading Section-steel Piles (7) is placed channel bottom (2); 5th, lay pipeline, backfill groove; 6th, loosen longitudinal bracing (6) to the constraint of grooved piling bar (7); 7th, adopt horizontal support (4) and grooved piling bar (7) in jack jacking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310717728.1A CN103669370B (en) | 2013-12-24 | 2013-12-24 | Recoverable combined groove excavation foundation fit supporting device and construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310717728.1A CN103669370B (en) | 2013-12-24 | 2013-12-24 | Recoverable combined groove excavation foundation fit supporting device and construction method |
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| Publication Number | Publication Date |
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| CN103669370A CN103669370A (en) | 2014-03-26 |
| CN103669370B true CN103669370B (en) | 2015-05-13 |
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| CN105672331B (en) * | 2016-01-22 | 2018-01-16 | 大连大学 | A kind of vertical outer drawing ground anchor peg tube seat foundation ditch dado structure and construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2899670B2 (en) * | 1995-09-20 | 1999-06-02 | 鹿島建設株式会社 | Excavation for underground structures |
| JPH11190024A (en) * | 1997-12-25 | 1999-07-13 | Sada Kensetsu:Kk | Earth retaining work |
| CN2481759Y (en) * | 2001-06-29 | 2002-03-13 | 孙洪涛 | Steel-pipe pile and anchor bar combined foundation pit supporting member |
| CN201250408Y (en) * | 2008-08-14 | 2009-06-03 | 孔清华 | Recovery type steel structure foundation pit exterior-protected device |
| CN101560771A (en) * | 2009-05-11 | 2009-10-21 | 周治国 | Reclaimable foundation pit bracing system and construction method thereof |
| KR20110047506A (en) * | 2009-10-30 | 2011-05-09 | (주)동명기술공단종합건축사사무소 | Non-Strut Retaining Wall Construction Method, and Non-Strut Retaining Retaining Wall Structure |
| KR101371603B1 (en) * | 2011-07-08 | 2014-03-10 | 쌍용건설 주식회사 | Structure for retaining wall and joining means fo r retaining wall |
| CN102286980B (en) * | 2011-07-11 | 2013-04-17 | 福建工大建筑设计院 | Steel truss foundation pit supporting structure |
| CN202298600U (en) * | 2011-10-21 | 2012-07-04 | 郭根维 | Lassen steel sheet pile for foundation pit supporting and protecting construction |
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Address after: 350108 No.1, Gaoxin Avenue, high tech Zone, Minhou County, Fuzhou City, Fujian Province Patentee after: Fuzhou planning and Design Institute Group Co.,Ltd. Address before: 350003 Fuzhou planning and Design Institute, 188 Lake East Road, Gulou District, Fujian, Fuzhou Patentee before: FUZHOU PLANNING DESIGN & Research Institute |
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