CN103669370A - 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
- Publication number
- CN103669370A CN103669370A CN201310717728.1A CN201310717728A CN103669370A CN 103669370 A CN103669370 A CN 103669370A CN 201310717728 A CN201310717728 A CN 201310717728A CN 103669370 A CN103669370 A CN 103669370A
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- Prior art keywords
- grooved
- piling bar
- horizontal support
- groove
- rectangular opening
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- 238000009412 basement excavation Methods 0.000 title claims abstract description 25
- 238000010276 construction Methods 0.000 title claims abstract description 19
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 15
- 239000010959 steel Substances 0.000 claims abstract description 15
- 230000008685 targeting Effects 0.000 claims description 11
- 239000000725 suspension Substances 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 3
- 239000002689 soil Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000012407 engineering method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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- Piles And Underground Anchors (AREA)
- Foundations (AREA)
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 burying the various pipelines of 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 underground existing pipeline is complicated, and traffic above-ground inconvenience is interrupted; 3, the channel excavation time short, be often limit excavation limit backfill.
because the channel excavation time is short, formed slope soil even not and distortion, soil stress is not and discharge, 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 guarantee, the problems such as foundation pit collapse, existing pipeline destruction happen 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.), waste time and energy not only but also uneconomical.Therefore, need to there is suspension device and the corresponding construction method that meets civicism trench excavation feature.
Summary of the invention
the invention provides a kind of recyclable Combined groove excavation pit suspension device and construction method thereof, it not only can meet civicism trench excavation to the intensity of support system, rigidity requirement, and construction 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 the rectangle of sealing, opposite side at rectangle has side direction rectangular opening (73) and forward rectangular opening (74), 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) is abutted against with mud guard (8), places lower horizontal support (5) in described targeting port (72), and is against the inner side of the bottom of grooved piling bar (7).
construction method of the present invention is: first, according to the stake hole site of measuring unwrapping wire, hole to desired depth, after pore-forming, grooved piling bar (7) is implanted in the stake hole of groove both sides, also can adopt 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 one side is linked into an integrated entity along longitudinal bracing for groove (6) and billet (41), nut (42) by side direction rectangular opening (73); The 3rd, the grooved piling bar (7) of groove both sides is connected to form to integral body by forward rectangular opening (74) and upper horizontal support (4) and billet (41), nut (42); The 4th, be excavated to channel bottom (2), the targeting port (72) of lower horizontal support (5) crossheading Section-steel Piles (7) is placed to channel bottom (2); The 5th, lay pipeline, backfill groove; The 6th, loosen the constraint of longitudinal bracing (6) to grooved piling bar (7); The 7th, adopt horizontal support (4) and grooved piling bar (7) in jack jacking.
beneficial effect of the present invention is: construction easily, dismounting, recycling, improve efficiency of construction, save material and duration, reduce costs, take into full account civicism trench and excavated the feature that is different from architectural engineering pit, avoid the waste that blindly adopts architectural engineering pit support technology to cause, guaranteed the safety of civicism trench excavation.
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.
The specific embodiment
below in conjunction with specification drawings and specific embodiments, the present invention is described in further detail.
as shown in Fig. 1-6, 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 the rectangle of sealing, opposite side at rectangle has side direction rectangular opening (73) and forward rectangular opening (74), 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 of offering side direction rectangular opening (73) and forward rectangular opening (74) is the convenient height that regulates longitudinal bracing (6) and upper horizontal support (4), and solution grooved piling bar (7) may be affected by soil layer and not in the difficulty of same absolute altitude.
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) is abutted against with mud guard (8), places lower horizontal support (5) in described targeting port (72), and is against the inner side of the bottom of grooved piling bar (7).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, can play constraint and guide effect to lower horizontal support (5) again.Lower horizontal support (5) when construction as soon as groove excavation of earthwork to design elevation, the targeting port (72) that is about to its crossheading Section-steel Piles (7) is placed channel bottom (2), lower horizontal support (5) has guaranteed that grooved piling bar (7) bottom is not because soil pressure effect is slided in groove foundation ditch, also doubled as institute's pipe laying road vertical elevation orientation tool, lower horizontal support (5) will be kept somewhere in groove foundation ditch.
construction method of the present invention is: look construction ability, the requirement of excavation section traffic above-ground tissue, excavation section periphery dangerous matter sources and obstruction, construction period requirement etc. by channel excavation equitable subsection; Then take following steps: first, according to the stake hole site of measuring unwrapping wire, hole to desired depth, after pore-forming, grooved piling bar (7) is implanted in the stake hole of groove both sides, also can adopt plant equipment 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 one side is linked into an integrated entity along longitudinal bracing for groove (6) and billet (41), nut (42) by side direction rectangular opening (73); The 3rd, the grooved piling bar (7) of groove both sides is connected to form to integral body by forward rectangular opening (74) and upper horizontal support (4) and billet (41), nut (42), form both sides and go along with sb. to guard him piling wall, and by regulating turnbuckle screw (9) to strengthen the connection supporting role of horizontal support, the quantity that upper horizontal support (4) is arranged, spacing etc. are looked design needs, can about 3 meters, interval layout one; The 4th, be excavated to channel bottom (2), the targeting port (72) of lower horizontal support (5) crossheading Section-steel Piles (7) is placed to channel bottom (2); The 5th, lay pipeline, backfill groove; The 6th, loosen the constraint of longitudinal bracing (6) to grooved piling bar (7); The 7th, adopt horizontal support (4) and grooved piling bar (7) in jack jacking.
upper horizontal support of the present invention (4) is the steel pole of TBE (threaded both ends), middle part band turnbuckle screw (9).The object that turnbuckle screw (9) is set is can be used for regulating easily the length of horizontal support (4), and the constraint between piling wall is gone along with sb. to guard him in strengthening groove both sides.
mud guard of the present invention (8) adopts steel plate or plank.
lower horizontal support of the present invention (5) is round log.
Claims (5)
1. a 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 the rectangle of sealing, opposite side at rectangle has side direction rectangular opening (73) and forward rectangular opening (74), 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) is abutted against with mud guard (8), places lower horizontal support (5) in described targeting port (72), and is against the inner side of the bottom of grooved piling bar (7).
2. the construction method of recyclable Combined groove excavation pit suspension device according to claim 1, it is characterized in that: first, according to the stake hole site of measuring unwrapping wire, hole to desired depth, after pore-forming, grooved piling bar (7) is implanted in the stake hole of groove both sides; 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 one side is linked into an integrated entity along longitudinal bracing for groove (6) and billet (41), nut (42) by side direction rectangular opening (73); The 3rd, the grooved piling bar (7) of groove both sides is connected to form to integral body by forward rectangular opening (74) and upper horizontal support (4) and billet (41), nut (42); The 4th, be excavated to channel bottom (2), the targeting port (72) of lower horizontal support (5) crossheading Section-steel Piles (7) is placed to channel bottom (2); The 5th, lay pipeline, backfill groove; The 6th, loosen the constraint of longitudinal bracing (6) to grooved piling bar (7); The 7th, adopt horizontal support (4) and grooved piling bar (7) in jack jacking.
3. recyclable Combined groove excavation pit suspension device according to claim 1, is characterized in that: described upper horizontal support (4) is the steel pole of TBE (threaded both ends), middle part band turnbuckle screw (9).
4. recyclable Combined groove excavation pit suspension device according to claim 1, is characterized in that: described mud guard (8) adopts steel plate or plank.
5. recyclable Combined groove excavation pit suspension device according to claim 1, is characterized in that: described lower horizontal support (5) is round log.
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 |
Applications Claiming Priority (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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103669370A true CN103669370A (en) | 2014-03-26 |
| CN103669370B CN103669370B (en) | 2015-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310717728.1A Active CN103669370B (en) | 2013-12-24 | 2013-12-24 | Recoverable combined groove excavation foundation fit supporting device and construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105672331A (en) * | 2016-01-22 | 2016-06-15 | 大连大学 | Vertical external pulling ground anchor pile pipe channel foundation pit protecting wall structure and construction method thereof |
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|---|---|---|---|---|
| JPH0988105A (en) * | 1995-09-20 | 1997-03-31 | Kajima Corp | Excavation method 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 | Mujibo mud construction method, and mujibo mud structure |
| CN102286980A (en) * | 2011-07-11 | 2011-12-21 | 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 |
| KR20130005997A (en) * | 2011-07-08 | 2013-01-16 | 쌍용건설 주식회사 | Structure for retaining wall and joining means fo r retaining wall |
-
2013
- 2013-12-24 CN CN201310717728.1A patent/CN103669370B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0988105A (en) * | 1995-09-20 | 1997-03-31 | Kajima Corp | Excavation method 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 | Mujibo mud construction method, and mujibo mud structure |
| KR20130005997A (en) * | 2011-07-08 | 2013-01-16 | 쌍용건설 주식회사 | Structure for retaining wall and joining means fo r retaining wall |
| CN102286980A (en) * | 2011-07-11 | 2011-12-21 | 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105672331A (en) * | 2016-01-22 | 2016-06-15 | 大连大学 | Vertical external pulling ground anchor pile pipe channel foundation pit protecting wall structure and construction method thereof |
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| Publication number | Publication date |
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| CN103669370B (en) | 2015-05-13 |
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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 |