CN101560771A - Reclaimable foundation pit bracing system and construction method thereof - Google Patents
Reclaimable foundation pit bracing system and construction method thereof Download PDFInfo
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- CN101560771A CN101560771A CNA2009100393673A CN200910039367A CN101560771A CN 101560771 A CN101560771 A CN 101560771A CN A2009100393673 A CNA2009100393673 A CN A2009100393673A CN 200910039367 A CN200910039367 A CN 200910039367A CN 101560771 A CN101560771 A CN 101560771A
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- pile tube
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- foundation pit
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Abstract
The invention relates to a reclaimable foundation pit bracing system, comprising bracing tubular piles, a tubular pile connection fixing device and a tubular pile lateral support device. The reclaimable foundation pit bracing system adopts the tubular pile connection fixing device to connect bracing tubular piles together so as to ensure that the bracing tubular piles are connected in lines to form horizontal restriction and vertical restriction, and uses the tubular pile lateral support device to laterally restrict the tubular piles so as to prevent soil body from extruding and collapsing the bracing tubular piles towards the foundation pit, thus being applicable to the construction of a large scale foundation pit. The tubular pile lateral support device and the tubular pile connection fixing device are dismantled after the construction and the tubular piles are recycled, thus greatly saving construction materials and reducing the construction cost of foundation pit timbering shoring. The invention also provides a construction method of the above reclaimable foundation pit bracing system.
Description
Technical field
The present invention relates to a kind of bracing of foundation pit system, refer in particular to bracing of foundation pit system in recyclable utilization; Simultaneously, the invention still further relates to the job practices of this bracing of foundation pit system.
Background technology
The base pit engineering space enclosing structure is generally vertical soil-baffling structure, and soil-baffling structure is the piling wall structure that certain insertion depth is arranged under the substrate of excavation face.Use more have bored pile, hole digging pile, deep-mixed pile, rotary churning pile, diaphragm wall etc. in China.In the construction of above space enclosing structure, the whole steel concrete building materials of disposable input are imbedded undergroundly after the engineering completion, no longer play a role, and cause huge material and energy waste.Steel sheet pile can reclaim as soil-baffling structure and repeatedly use, but its insufficient rigidity, distortion is big, only is applied to the small-sized pattern foundation pit supporting structure about 3-4 rice, and the scope of application is limited.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of reclaimable foundation pit bracing system, this bracing of foundation pit system not only can satisfy the rigidity requirement of large-scale foundation ditch to support system, and can repeatedly reuse, saved the cost of a large amount of constructional materialss and reduction foundation pit construction.
In order to solve the problems of the technologies described above, the present invention is used for the recoverable system for pit and comprises: go along with sb. to guard him pile tube, this is gone along with sb. to guard him pile tube and is positioned at the foundation ditch periphery; Pile tube connection fixing device, this connection fixing device will be gone along with sb. to guard him the pile tube binding and be fixed together; And pile tube lateral support device, this pile tube lateral support device is used for lateral restraint and links the pile tube of going along with sb. to guard him that is fixed together.
Reclaimable foundation pit bracing system of the present invention adopts the pile tube connection fixing device will go along with sb. to guard him the pile tube binding and is fixed together, can guarantee that like this going along with sb. to guard him pile tube in a row links, form horizontal cross and vertical vertical constraint, simultaneously pile tube lateral support device carries out lateral restraint and will go along with sb. to guard him pile tube and push in foundation ditch and collapse to prevent the soil body going along with sb. to guard him pile tube, makes it can be applied in the large-scale foundation pit construction.Foundation pit construction finishes the back to be removed pile tube lateral support device and pile tube connection fixing device and also recycles pile tube, and this structure bracing of foundation pit system can save a large amount of constructional materialss and reduction foundation pit support construction cost.
Simultaneously, the present invention also provides a kind of job practices of above-mentioned reclaimable foundation pit bracing system, and this job practices is included in plans to build foundation pit enclosure structure place measurement unwrapping wire, holes to desired depth according to a stake hole site of measuring unwrapping wire, will go along with sb. to guard him in the pile tube embedded pile hole; The pile tube of going along with sb. to guard him that is provided with that the pile tube connection fixing device will implant links and is fixed together; Pile tube lateral support device is set links the pile tube of going along with sb. to guard him that is fixed together with lateral restraint; Carry out earthwork construction in the foundation ditch then; Remove pile tube lateral support device, pile tube connection fixing device after foundation pit construction is finished successively and extract pile tube, the stake hole that the backfill pile tube stays.
When constructing, the job practices of reclaimable foundation pit bracing system of the present invention at first holes in advance for pile tube, then just in the pile tube embedded pile hole, foundation pit construction can be extracted recycling with pile tube after finishing from the stake hole, compare and existingly compare in placing into the soil pile tube is permanent, can save the constructional materials of making pile tube and the cost that reduces foundation pit construction.Simultaneously, owing to when construction, carried out the constraint of three directions in space, prevent to go along with sb. to guard him moving of pile tube to going along with sb. to guard him pile tube; And adopt pile tube lateral support device to carry out lateral restraint and will go along with sb. to guard him pile tube and in foundation ditch, push and collapse, thereby make this recoverable foundation pit support system can be applied in the large-scale foundation ditch to prevent the soil body to going along with sb. to guard him pile tube.
Description of drawings
Fig. 1 is the front view of first kind of embodiment of bracing of foundation pit of the present invention system;
Fig. 2 is the left view of the containment system shown in Fig. 1;
Fig. 3 is the vertical view of the containment system shown in Fig. 1;
Fig. 4 is that the pile tube bracing or strutting arrangement Support Position in first kind of embodiment of bracing of foundation pit of the present invention system changes schematic diagram;
Fig. 5 is the structure chart of second kind of embodiment of bracing of foundation pit of the present invention system;
Fig. 6 is the construction process figure of bracing of foundation pit of the present invention system.
The specific embodiment
Below in conjunction with specification drawings and specific embodiments reclaimable foundation pit bracing system of the present invention and job practices thereof are described in further detail.
As depicted in figs. 1 and 2, reclaimable foundation pit bracing system of the present invention comprises goes along with sb. to guard him pile tube 11, pile tube connection fixing device and pile tube lateral support device 14, and pile tube lateral support device comprises hat beam 12 and waist rail 13.The described pile tube 11 of going along with sb. to guard him can be hollow thin-wall steel pipe pile or high-strength Prestressed Pipe Pile.
As shown in Figure 2, the pile tube connection fixing device is installed in to be gone along with sb. to guard him on the pile tube 11, make its proper alignment in order to link the fixing pile tube 11 of going along with sb. to guard him side by side, and form horizontal cross and vertically vertically retrain, be bonded going along with sb. to guard him pile tube 11 and can preventing that the soil body from pushing and cause wherein some to go along with sb. to guard him pile tube moving of being fixed together.Hat beam 12 in the pile tube connection fixing device first fastening bolt 122 that comprises two first steel plates 121 and be used for fixing this steel plate, and the steel deck-plate 124 in pile tube aperture in the present embodiment, steel deck-plate 124 are used for sealing and go along with sb. to guard him aperture, pile tube 11 upper end; Be provided with the through hole that passes for first fastening bolt 122 on first steel plate 121 in advance, and these through holes are corresponding to be provided with, and first fastening bolt 122 passes that the other end and nut 123 cooperatively interact behind first steel plate 121 of going along with sb. to guard him pile tube 11 both sides and adjacent two spaces of going along with sb. to guard him between the pile tube 11.Thereby reach the fixing above-mentioned purpose of going along with sb. to guard him pile tube 11 by the clamping force that 122 pairs two first steel plates 121 of first fastening bolt apply.Waist rail 13 in the pile tube connection fixing device comprises that being positioned at second steel plate 131 of going along with sb. to guard him pile tube 11 1 sides and second fastening bolt, 132, the second fastening bolts 132 passes the through hole that is arranged on second steel plate 131 and match with the nut of going along with sb. to guard him pile tube 11 opposite sides.Go along with sb. to guard him pile tube 11 by hat beam 12 and 13 pairs of waist rails and form horizontal cross and vertical vertical constraint.In the present embodiment, pile tube lateral support device 14 for be positioned at go along with sb. to guard him pile tube 11 outsides tiltedly draw anchor, tiltedly draw the upper end of anchor to be fixed near the hat beam 12, its lower end is deep in the soil body 15.
As shown in Figure 3, prevent that in order fixedly to go along with sb. to guard him pile tube 11 effectively it from rotating or moving up and down in first steel plate 121 of both sides, for the hat girder construction, be provided with on the pile tube 11 and both sides first steel plate, 121 corresponding through holes going along with sb. to guard him in advance, first fastening bolt 122 passes the through hole of going along with sb. to guard him on the pile tube 11 simultaneously when passing first steel plate 121, the other end of first fastening bolt 122 cooperates with nut 123.For breast beam structure, also be provided with through hole on the pile tube 11 going along with sb. to guard him, corresponding with the through hole on second steel plate 131 of going along with sb. to guard him pile tube 11 1 sides, on corresponding its through hole of the opposite side of going along with sb. to guard him pile tube 11, be fixed with nut 133, for example nut 133 is welded on the steel pipe pile, second fastening bolt 132 directly cooperates with nut 133 after passing through hole.
As shown in Figure 4,, constantly set up waist rail 13 downwards, promptly set up the globality of a waist rail 13 with the pile tube 11 that keeps being arranged side by side along each segment distance of pile tube 11 length directions along going along with sb. to guard him pile tube 11 along with the soil excavation degree of depth in the foundation ditch is deepened.In Fig. 4, set up a waist rail 13,14 pairs in pile tube lateral support device is gone along with sb. to guard him the Support Position of pile tube 11 also along with moving down, in the present embodiment at every turn, the Support Position among Fig. 2 is compared in the Support Position of pile tube lateral support device 14, and it is displaced downwardly to second waist rail 13 place.
Be illustrated in figure 5 as the structure chart of second kind of embodiment of bracing of foundation pit of the present invention system, in this embodiment, pile tube lateral support device 14 is for going along with sb. to guard him the supporting traverse between the pile tube 11 two rows.Fixing the going along with sb. to guard him on the pile tube 11 of the left side in the drawings of one end of supporting traverse, fixing the going along with sb. to guard him on the pile tube 11 of the right in the drawings of the other end.In the present embodiment, the two ends of supporting traverse are separately fixed on the steel plate of hat beam 12 or waist rail 13.Along with the soil excavation degree of depth in the foundation ditch is deepened, constantly set up waist rail 13 downwards along going along with sb. to guard him pile tube 11, promptly set up the globality of a waist rail 13 with the pile tube 11 that keeps being arranged side by side along each segment distance of pile tube 11 length directions.Simultaneously, between every pair of waist rail 13, set up in supporting traverse to keep the rigidity of whole bracing of foundation pit system.
Be illustrated in figure 6 as the flow chart of the job practices of reclaimable foundation pit bracing system of the present invention, at first planning to build foundation pit enclosure structure place measurement unwrapping wire, hole to desired depth according to the stake hole site of measuring unwrapping wire, to go along with sb. to guard him behind the pore-forming in the pile tube 11 embedded pile holes, and go along with sb. to guard him pile tube 11 and constitute the space enclosing structure of a sealing along peripheral distribution of foundation ditch.And then the pile tube 11 of going along with sb. to guard him that installation hat beam 12 will be implanted is fixed together; When if the sealing requirement is arranged, wait to be preced with beam 12 installations after, the outer soil body of foundation ditch is carried out water sealing consolidations such as agitation pile or rotary churning pile handles.More than work and carry out soil excavation in the foundation ditch after finishing, a little can install pile tube lateral support device 14 to support the above-mentioned pile tube of going along with sb. to guard him soil body stage excavation.Proceed the soil mass of foundation pit stage excavation then, promptly carry out construction in the foundation ditch, if in darker foundation ditch, for rigidity and the safety of construction that keeps containment system in the foundation ditch, constantly increase waist rail 13 along with the increase of the soil body decline degree of depth in the foundation ditch, and move between the Support Position tiltedly draw anchor or the waist rail 13 and constantly add supporting traverse; Construct at the bottom of the foundation ditch so always.
And then construct basement in foundation ditch bottom, treat the bottom basement construction finish after at underground basement with go along with sb. to guard him backfill between the pile tube, remove the waist rail 13 of bottom, move the Support Position of tiltedly drawing anchor simultaneously or remove supporting traverse between the waist rail 13, the last basement of up constructing again repeats said process and reaches the face of land until the basement height.Confirm basement structure and go along with sb. to guard him between the pile tube 11 after the backfill, remove the hat beam 12 and the pile tube lateral support device 14 of going along with sb. to guard him pile tube 11 ends, extract then and go along with sb. to guard him pile tube 11.Pull out go along with sb. to guard him pile tube 11 after, will go along with sb. to guard him pile tube 11 immediately and pull out the stake hole earthen backfill that stays, go along with sb. to guard him pile tube 11 until all and pulled out, the pile tube 11 of going along with sb. to guard him pulled out of quilt can be used for next pattern foundation pit supporting structure.
Above disclosed only is the preferred embodiments of the present invention, can not limit the present invention's interest field certainly with this, and therefore the equivalent variations of being done according to the present patent application claim still belongs to the scope that the present invention is contained.
Claims (9)
1. a reclaimable foundation pit bracing system is characterized in that it comprises
Go along with sb. to guard him pile tube, this is gone along with sb. to guard him pile tube and is positioned at the foundation ditch periphery;
Pile tube connection fixing device, this connection fixing device will be gone along with sb. to guard him the pile tube binding and be fixed together; And
Pile tube lateral support device, this pile tube lateral support device are used for lateral restraint and link the pile tube of going along with sb. to guard him that is fixed together.
2. reclaimable foundation pit bracing system as claimed in claim 1 is characterized in that, the described pile tube of going along with sb. to guard him is steel pipe or high-strength Prestressed Pipe Pile.
3. reclaimable foundation pit bracing system as claimed in claim 1 is characterized in that, the pile tube connection fixing device comprises Guan Liang and more than one waist rail; The steel deck-plate that this Guan Liang comprises first fastening bolt that is positioned at two first steel plates of pile tube both sides, fastening both sides steel plate and is positioned at the pile tube upper end, steel deck-plate is used to seal the pile tube aperture; Described waist rail comprises that one is positioned at second steel plate of pile tube one side and second fastening bolt of fastening this steel plate.
4. reclaimable foundation pit bracing system as claimed in claim 3 is characterized in that, is provided with through hole on the pile tube described going along with sb. to guard him, and described first fastening bolt and second fastening bolt pass the through hole of going along with sb. to guard him on the pile tube.
5. reclaimable foundation pit bracing system as claimed in claim 1 is characterized in that, described pile tube lateral support device is to be installed in the interior supporting traverse of going along with sb. to guard him on the pile tube.
6. reclaimable foundation pit bracing system as claimed in claim 1 is characterized in that, described pile tube lateral support device is for tiltedly drawing anchor cable, and this tiltedly draws an end of anchor cable to be fixed on and goes along with sb. to guard him on the pile tube, and this anchor cable is arranged in the soil body.
7. the job practices of a reclaimable foundation pit bracing system is characterized in that,
Planning to build foundation pit enclosure structure place measurement unwrapping wire, hole to desired depth according to a stake hole site of measuring unwrapping wire, will go along with sb. to guard him in the pile tube embedded pile hole;
The pile tube of going along with sb. to guard him that is provided with that the pile tube connection fixing device will implant links and is fixed together;
Pile tube lateral support device is set to carry out constructing in the foundation ditch with the pile tube of going along with sb. to guard him that the lateral restraint binding is fixed together; And
Remove pile tube lateral support device, pile tube connection fixing device successively and extract pile tube after construction is finished, the stake hole that the backfill pile tube stays.
8. the job practices of reclaimable foundation pit bracing system as claimed in claim 7 is characterized in that, carries out water sealing consolidation after the installation of pile tube connection fixing device in the soil body and handle outside foundation ditch.
9. the job practices of reclaimable foundation pit bracing system as claimed in claim 7 is characterized in that, along with the soil excavation degree of depth in the foundation ditch is constantly deepened, thereby increases described pile tube lateral support device by row.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100393673A CN101560771A (en) | 2009-05-11 | 2009-05-11 | Reclaimable foundation pit bracing system and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100393673A CN101560771A (en) | 2009-05-11 | 2009-05-11 | Reclaimable foundation pit bracing system and construction method thereof |
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| CN101560771A true CN101560771A (en) | 2009-10-21 |
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| CNA2009100393673A Pending CN101560771A (en) | 2009-05-11 | 2009-05-11 | Reclaimable foundation pit bracing system and construction method thereof |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101793031A (en) * | 2010-03-23 | 2010-08-04 | 钟康明 | Enclosure device in underground excavation engineering and use method thereof |
| CN102444131A (en) * | 2011-10-25 | 2012-05-09 | 广东永基建筑基础有限公司 | Foundation pit support method and device |
| CN102877463A (en) * | 2012-09-28 | 2013-01-16 | 中国建筑第六工程局有限公司 | Recyclable foundation pit support pipe pile and application and recovery method thereof |
| CN103410156A (en) * | 2013-08-28 | 2013-11-27 | 上海岩土工程勘察设计研究院有限公司 | Recyclable vertical steel tube front supporting envelop enclosure and applying method thereof |
| CN103410158A (en) * | 2013-08-28 | 2013-11-27 | 上海岩土工程勘察设计研究院有限公司 | Recoverable vertical type portal self-stabilizing enveloping structure and application method thereof |
| CN103643673A (en) * | 2013-11-04 | 2014-03-19 | 张延策 | Self-advancing recyclable steel pipe pile and construction method |
| CN103669370A (en) * | 2013-12-24 | 2014-03-26 | 福州市规划设计研究院 | Recoverable combined groove excavation foundation fit supporting device and construction method |
| CN103696430A (en) * | 2014-01-03 | 2014-04-02 | 张延策 | Construction process of non-grouted recyclable steel-pipe piles |
| CN106320345A (en) * | 2015-06-30 | 2017-01-11 | 上海勘测设计研究院有限公司 | Foundation pit support structure |
| CN106759377A (en) * | 2016-12-23 | 2017-05-31 | 安徽理工大学 | The construction method of recyclable building enclosure |
| CN107524152A (en) * | 2017-10-13 | 2017-12-29 | 中建八局第三建设有限公司 | A kind of foundation pit enclosure structure stress bringing device and its construction method |
| CN108914945A (en) * | 2018-08-09 | 2018-11-30 | 深圳市工勘岩土集团有限公司 | A kind of deep basal pit pile for prestressed pipe, prestress anchorage cable combined supporting construction method |
| CN113323011A (en) * | 2021-06-30 | 2021-08-31 | 武汉武建机械施工有限公司 | Novel underpinning construction method for steel pipe under existing building foundation |
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2009
- 2009-05-11 CN CNA2009100393673A patent/CN101560771A/en active Pending
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101793031A (en) * | 2010-03-23 | 2010-08-04 | 钟康明 | Enclosure device in underground excavation engineering and use method thereof |
| CN102444131A (en) * | 2011-10-25 | 2012-05-09 | 广东永基建筑基础有限公司 | Foundation pit support method and device |
| CN102444131B (en) * | 2011-10-25 | 2013-03-13 | 广东永基建筑基础有限公司 | Foundation pit support method |
| CN102877463A (en) * | 2012-09-28 | 2013-01-16 | 中国建筑第六工程局有限公司 | Recyclable foundation pit support pipe pile and application and recovery method thereof |
| CN102877463B (en) * | 2012-09-28 | 2015-01-07 | 中国建筑第六工程局有限公司 | Recyclable foundation pit support pipe pile and application and recovery method thereof |
| CN103410158B (en) * | 2013-08-28 | 2018-01-05 | 上海岩土工程勘察设计研究院有限公司 | A kind of recyclable vertical type door frame is from steady building enclosure and its application process |
| CN103410156A (en) * | 2013-08-28 | 2013-11-27 | 上海岩土工程勘察设计研究院有限公司 | Recyclable vertical steel tube front supporting envelop enclosure and applying method thereof |
| CN103410158A (en) * | 2013-08-28 | 2013-11-27 | 上海岩土工程勘察设计研究院有限公司 | Recoverable vertical type portal self-stabilizing enveloping structure and application method thereof |
| CN103410156B (en) * | 2013-08-28 | 2016-01-27 | 上海岩土工程勘察设计研究院有限公司 | Support space enclosing structure and application process thereof before a kind of recyclable vertical type steel pipe |
| CN103643673A (en) * | 2013-11-04 | 2014-03-19 | 张延策 | Self-advancing recyclable steel pipe pile and construction method |
| CN103643673B (en) * | 2013-11-04 | 2019-01-11 | 泰安市岱宗机电科技开发有限公司 | Steel-pipe pile and construction method can be recycled in self-advancing type |
| CN103669370A (en) * | 2013-12-24 | 2014-03-26 | 福州市规划设计研究院 | Recoverable combined groove excavation foundation fit supporting device and construction method |
| CN103696430A (en) * | 2014-01-03 | 2014-04-02 | 张延策 | Construction process of non-grouted recyclable steel-pipe piles |
| CN103696430B (en) * | 2014-01-03 | 2018-07-06 | 张延策 | The construction technology of the recyclable steel-pipe pile of not slip casting |
| CN106320345A (en) * | 2015-06-30 | 2017-01-11 | 上海勘测设计研究院有限公司 | Foundation pit support structure |
| CN106759377A (en) * | 2016-12-23 | 2017-05-31 | 安徽理工大学 | The construction method of recyclable building enclosure |
| CN107524152A (en) * | 2017-10-13 | 2017-12-29 | 中建八局第三建设有限公司 | A kind of foundation pit enclosure structure stress bringing device and its construction method |
| CN108914945A (en) * | 2018-08-09 | 2018-11-30 | 深圳市工勘岩土集团有限公司 | A kind of deep basal pit pile for prestressed pipe, prestress anchorage cable combined supporting construction method |
| CN113323011A (en) * | 2021-06-30 | 2021-08-31 | 武汉武建机械施工有限公司 | Novel underpinning construction method for steel pipe under existing building foundation |
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Open date: 20091021 |