CN104975606A - Method for handling high-low strides at adjacent parts of reverse building foundation pit and adjacent foundation pit - Google Patents
Method for handling high-low strides at adjacent parts of reverse building foundation pit and adjacent foundation pit Download PDFInfo
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- CN104975606A CN104975606A CN201510365478.9A CN201510365478A CN104975606A CN 104975606 A CN104975606 A CN 104975606A CN 201510365478 A CN201510365478 A CN 201510365478A CN 104975606 A CN104975606 A CN 104975606A
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Abstract
The invention relates to a method for handling high-low strides at adjacent parts of a reverse building foundation pit and an adjacent foundation pit. The method comprises the steps that firstly, pouring piles are constructed and enclosed, and a top ring beam is manufactured; secondly, reverse building foundation pit structure top plate construction is carried out, a top plate and the top ring beam are connected through connecting beams, and brackets formed by the heightened top ring beam and variable cross-section joint sections are manufactured at the positions, having the height difference, of the adjacent edges of the top plate of the reverse building foundation pit and the adjacent foundation pit; thirdly, after the brackets and supporting beam connectors of the adjacent foundation pit are completed, the next procedure of structure construction is carried out on the reverse building foundation pit, after the bottom plate construction of the reverse building foundation pit is completed, excavation of the adjacent foundation pit and the next procedure of construction are carried out. By means of the method, the situation of structure force transmission discontinuousness caused by different elevations in adjacent reverse building foundation pits can be well handled, the working condition limitation that the adjacent foundation pit can be excavated only after backfill of the reverse building foundation pit is completed can also be avoided, the duration of a project is greatly shortened, and the technical feasibility, the working efficiency and the implementation effect of the method are much better than those of a traditional manner.
Description
Technical field
The present invention relates to a kind of building foundation pit construction method, especially a kind of against making foundation ditch and Adjacent Pit adjacent high-low bay processing method.
Background technology
At present, because foundation ditch area is large or development requires, an independent foundation ditch is divided into the situation that 2 ~ 3 foundation ditches carry out constructing and gets more and more.And adopting the foundation ditch of contrary sequence method to have a feature: indoor terrace and basement roof are generally above the ground level, and adjacent edge possibility structure is lower than this top board structure face.Both sides are so just made to there is difference of height, cause structure power transmission discontinuous, must take the necessary measures and process, conventional process mode is namely according to preceding method, and a foundation ditch of first constructing, after it all completes and backfills, the earthwork of backfill is utilized to carry out power transmission, not only cause the duration of Adjacent Pit greatly to be limited, and also to excavate in the earthwork later stage of backfill, cause secondary waste economically.
Summary of the invention
The present invention will provide a kind of to process against making foundation ditch and Adjacent Pit adjacent high-low bay processing method adjacent high-low bay place node, and the method can avoid tradition discontinuous against making force transferring structure in foundation ditch, and the duration is limited, the shortcoming of construction costs secondary waste.
For achieving the above object, technical scheme of the present invention is:
A kind of against making foundation ditch and Adjacent Pit adjacent high-low bay processing method, it is characterized in that, concrete steps are:
1) castinplace pile is gone along with sb. to guard him in construction, makes the collar tie beam that bears down on one;
2) carry out inverse making foundation pit structure top board construction, top board adopts tie-beam to be connected with the collar tie beam that bears down on one, and there is discrepancy in elevation position make " bracket " that be made up of add high pressure top beam and variable cross-section changeover portion against making foundation ditch top board and Adjacent Pit adjacent edge;
3), after " bracket " and Adjacent Pit brace summer joint complete, inverse carry out lower one structure construction as foundation ditch, until inverse complete construction of bottom plates as foundation ditch after, the excavation and the next process that carry out Adjacent Pit are constructed.
Described " bracket " is configured to: " bracket " top arranges the top beam that adds high pressure, height is identical with ceiling height, width equals tie-beam width between structural slab and " bracket " and adds each 400mm in both sides, adding high pressure under top beam is the through collar tie beam that bears down on one, i.e. Adjacent Pit and the inverse adjacent side bar done between foundation ditch; " bracket " end adopts 1:2 variable cross-section to carry out transition, supports bottom elevation to Adjacent Pit, and at the suitable joint making brace summer of " bracket " inner access in advance, stretch out " bracket " end, the reinforcing bar of brace summer anchors into the through collar tie beam that bears down on one.
Between described tie-beam and " bracket ", inner side, arranges 45 ° of haunch concrete, arranges 60 ° of haunch concrete between tie-beam and top board place exterior wall collar tie beam.。
The invention has the beneficial effects as follows: adopt the present invention, well can process and adjacently inverse make absolute altitude difference in foundation ditch and cause the discontinuous situation of structure power transmission, also can avoid Adjacent Pit need to wait for inverse complete as pit backfill after can carry out the operating mode restriction of excavating, substantially reduce the duration of engineering, it is all greatly better than traditional approach on technical feasibility, operating efficiency, implementation result.
Accompanying drawing explanation
Fig. 1 is along work, against making foundation ditch adjacent capping beam place processing mode lateral view;
Fig. 2 is " bracket " elevation.
Detailed description of the invention
Below in conjunction with accompanying drawing and embodiment, the invention will be further described.
As Fig. 1, shown in 2, a kind of against making foundation ditch and Adjacent Pit adjacent high-low bay processing method, concrete steps are:
1) castinplace pile 11 is gone along with sb. to guard him in construction, makes the collar tie beam 5 that bears down on one;
2) carry out the inverse top board 2 making foundation pit structure 10 to construct, top board 2 adopts tie-beam 3 to be connected with the collar tie beam 5 that bears down on one, and there is discrepancy in elevation position make " bracket " 1 be made up of add high pressure top beam 4 and variable cross-section changeover portion at the inverse top board 2 making foundation ditch and Adjacent Pit adjacent edge;
3) after brace summer 8 joint of " bracket " 1 and Adjacent Pit completes, inverse make foundation ditch 10 and carry out lower one structure construction, do after foundation ditch 10 completes construction of bottom plates until inverse, the excavation and the next process that carry out Adjacent Pit 11 are constructed.
" bracket 1 is configured to: " bracket " top arranges the top beam 4 that adds high pressure; height is highly identical with top board 2; tie-beam 3 width that width equals between structural slab and " bracket " adds each 400mm in both sides; the top beam that adds high pressure is for 4 times the through collar tie beam 5 that bears down on one, i.e. Adjacent Pit and the inverse adjacent side bar done between foundation ditch; " bracket " 1 end adopt 1:2 variable cross-section to carry out transition, to Adjacent Pit brace summer 8 end absolute altitude, " bracket " 1 inside access joint along making brace summer 8 in advance, stretch out " bracket " 1 end, the reinforcing bar of brace summer 8 anchors into the through collar tie beam 5 that bears down on one.
For ensureing the reliability of power transmission, the tie-beam 3 between top board 2 and " bracket " 1 and inner side between " bracket " 1, arrange 45 ° of haunch concrete 6, also arrange 60 ° of haunch concrete sevens equally between tie-beam 3 and top board place exterior wall collar tie beam 9.
In contrary sequence method foundation ditch, basement structure top board is generally higher than going along with sb. to guard him the collar tie beam that bears down on one, and in Adjacent Pit, there is brace summer with the collar tie beam that bears down on one flushes, and two foundation ditch joints, occur the situation of structure high-low bay, power transmission is discontinuous.Processing mode of the present invention is, in the foundation ditch of construction in advance, such as one of them contrary sequence method foundation ditch is constructed in advance, because top board is higher than capping beam, therefore one " bracket " is set at collar tie beam place of bearing down on one, " bracket " height is identical with against the top board making foundation ditch, bottom adopts the gradient of 1:2 to carry out the transmission that variable cross-section carries out power, the brace summer joint of Adjacent Pit is set at capping beam and " bracket " intersection, joint anchors into and bears down on one in collar tie beam, carries out force transferring structure reinforcement at the inverse inner haunch arranging about 60 degree of foundation ditch top board of doing simultaneously.When Adjacent Pit excavates, joint reserved in " bracket " is carried out connecting.
Claims (3)
1., against making foundation ditch and an Adjacent Pit adjacent high-low bay processing method, it is characterized in that, concrete steps are:
1) castinplace pile (11) is gone along with sb. to guard him in construction, makes the collar tie beam (5) that bears down on one;
2) inverse top board (2) construction doing foundation pit structure (10) is carried out, top board (2) and the collar tie beam that bears down on one (5) adopt tie-beam (3) to be connected, and there is discrepancy in elevation position make " bracket " (1) be made up of the top beam that adds high pressure (4) and variable cross-section changeover portion at the inverse top board (2) doing foundation ditch (10) with Adjacent Pit adjacent edge;
3) after " bracket " (1) and Adjacent Pit brace summer (8) joint complete, lower one structure construction is carried out against making foundation ditch (10), after foundation ditch (10) completes construction of bottom plates, excavation and the next process construction of Adjacent Pit is carried out until inverse work.
2. according to claim 1 against making foundation ditch and Adjacent Pit adjacent high-low bay processing method, it is characterized in that: described " bracket " (1) is configured to: top, " bracket " (1) arranges the top beam (4) that adds high pressure, height is highly identical with top board (2), tie-beam (3) width that width equals between structural slab and " bracket " (1) adds each 400mm in both sides, the top beam (4) that adds high pressure is placed on the through collar tie beam that bears down on one (5), " bracket " (1) end adopts 1:2 variable cross-section to carry out transition, to Adjacent Pit brace summer (8) end absolute altitude, the joint along doing brace summer (8) is accessed in advance in inside, " bracket " (1), stretch out " bracket " (1) end, the reinforcing bar of brace summer (8) anchors into the through collar tie beam that bears down on one (5).
3. according to claim 2 against making foundation ditch and Adjacent Pit adjacent high-low bay processing method, it is characterized in that: between described tie-beam (3) and " bracket " (1) inner side, 45 ° of haunch concrete are set, 60 ° of haunch concrete (7) are set between tie-beam (3) and top board place exterior wall collar tie beam (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510365478.9A CN104975606B (en) | 2015-06-29 | 2015-06-29 | Method for handling high-low strides at adjacent parts of reverse building foundation pit and adjacent foundation pit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510365478.9A CN104975606B (en) | 2015-06-29 | 2015-06-29 | Method for handling high-low strides at adjacent parts of reverse building foundation pit and adjacent foundation pit |
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| CN104975606A true CN104975606A (en) | 2015-10-14 |
| CN104975606B CN104975606B (en) | 2017-04-19 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105714849A (en) * | 2016-01-29 | 2016-06-29 | 中国华冶科工集团有限公司 | Reverse construction method for adjacent high and low floors (bays) of basement |
| CN109440783A (en) * | 2018-12-21 | 2019-03-08 | 福建建中建设科技股份有限公司 | A kind of the monoblock type foundation pit horizontal struts system and its construction method of precast assembly |
| CN112663637A (en) * | 2020-12-18 | 2021-04-16 | 中建四局贵州投资建设有限公司 | Construction method applied to high-low span pile foundation of side slope |
| CN113373935A (en) * | 2021-05-06 | 2021-09-10 | 上海建工集团股份有限公司 | Foundation pit bottom plate force transmission structure and construction method thereof |
| CN113482009A (en) * | 2021-07-20 | 2021-10-08 | 上海建工一建集团有限公司 | Bottom plate reinforcing node of embedded support and construction method thereof |
| CN113605442A (en) * | 2021-06-30 | 2021-11-05 | 广东省建筑设计研究院有限公司 | Sand tank connecting node structure for empty face of basement |
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| KR100858712B1 (en) * | 2006-11-01 | 2008-09-17 | (주)써포텍 | Corner connecting apparatus of temporary soil sheathing work |
| CN102704493A (en) * | 2012-06-20 | 2012-10-03 | 上海建工二建集团有限公司 | Force-transferring device for shallow pit base plate and deep pit strut and construction method |
| CN103485350A (en) * | 2013-09-24 | 2014-01-01 | 上海市基础工程集团有限公司 | Connection method for elevated steel support system and top ring beam |
| CN204370429U (en) * | 2014-12-08 | 2015-06-03 | 北京建筑大学 | A kind of foundation pit earth pressure-controlled structure |
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2015
- 2015-06-29 CN CN201510365478.9A patent/CN104975606B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100858712B1 (en) * | 2006-11-01 | 2008-09-17 | (주)써포텍 | Corner connecting apparatus of temporary soil sheathing work |
| CN102704493A (en) * | 2012-06-20 | 2012-10-03 | 上海建工二建集团有限公司 | Force-transferring device for shallow pit base plate and deep pit strut and construction method |
| CN103485350A (en) * | 2013-09-24 | 2014-01-01 | 上海市基础工程集团有限公司 | Connection method for elevated steel support system and top ring beam |
| CN204370429U (en) * | 2014-12-08 | 2015-06-03 | 北京建筑大学 | A kind of foundation pit earth pressure-controlled structure |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105714849A (en) * | 2016-01-29 | 2016-06-29 | 中国华冶科工集团有限公司 | Reverse construction method for adjacent high and low floors (bays) of basement |
| CN109440783A (en) * | 2018-12-21 | 2019-03-08 | 福建建中建设科技股份有限公司 | A kind of the monoblock type foundation pit horizontal struts system and its construction method of precast assembly |
| CN112663637A (en) * | 2020-12-18 | 2021-04-16 | 中建四局贵州投资建设有限公司 | Construction method applied to high-low span pile foundation of side slope |
| CN113373935A (en) * | 2021-05-06 | 2021-09-10 | 上海建工集团股份有限公司 | Foundation pit bottom plate force transmission structure and construction method thereof |
| CN113605442A (en) * | 2021-06-30 | 2021-11-05 | 广东省建筑设计研究院有限公司 | Sand tank connecting node structure for empty face of basement |
| CN113482009A (en) * | 2021-07-20 | 2021-10-08 | 上海建工一建集团有限公司 | Bottom plate reinforcing node of embedded support and construction method thereof |
| CN113482009B (en) * | 2021-07-20 | 2022-11-29 | 上海建工一建集团有限公司 | Bottom plate reinforcing joint of embedded support and construction method thereof |
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| Publication number | Publication date |
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| CN104975606B (en) | 2017-04-19 |
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