CN104863161A - River limb construction protection method - Google Patents
River limb construction protection method Download PDFInfo
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- CN104863161A CN104863161A CN201510243996.3A CN201510243996A CN104863161A CN 104863161 A CN104863161 A CN 104863161A CN 201510243996 A CN201510243996 A CN 201510243996A CN 104863161 A CN104863161 A CN 104863161A
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Abstract
The invention relates to limb deep foundation pit construction, and provides a river limb construction protection method used for protecting river limb foundation pit construction. A foundation pit foundation construction area is defined, and then a protection structure is arranged around the construction area. The protection structure comprises a long edge protection part and two short edge protection parts. The two short edge protection parts are each in a circular arc shape. A C shape is defined by the long edge protection part. The long edge protection part comprises a plurality of protection piles sequentially embedded in the length direction of a river. The two short edge protection parts each comprise a plurality of protection piles sequentially embedded, and a plurality of meshing piles are arranged at the ends, close to the river, of the two short edge protection parts. According to the protection method, the protection structure is in the C shape; the two short edge protection parts are each in the circular arc shape; the overall rigidity of the protection piles can be improved through the two short edge protection parts; the deformation of the protection piles is reduced; thus, the protection construction difficulty can be lowered; radial force is generated on the circular arc structures of the two short edge protection parts, and therefore the meshing piles can be used for performing subduction resisting.
Description
Technical field
The present invention relates to and face limit deep foundation pit construction, particularly relate to a kind of rivers and face limit construction protection method.
Background technology
During foundation pit construction, safeguard structure often need be set and prevent slope failure, special in foundation depth is larger, need to arrange inner support or anchor structure, make protection meet requirement that is stressed and stability aspect.Face limit when carrying out deep foundation pit construction, due to safeguard structure only three layouts, it is more difficult that safeguard structure arranges inner support, and adopt anchor structure, and the construction of anchor pole or pull bar is more loaded down with trivial details again.
Summary of the invention
The object of the present invention is to provide a kind of rivers to face limit construction protection method, be intended to for solve existing face limit construction time safeguard structure the problem of inner support is not easily set.
The present invention is achieved in that
The invention provides a kind of rivers and face limit construction protection method, facing limit foundation pit construction for protecting rivers, comprising following construction sequence:
Face flange in rivers and determine foundation ditch foundation construction region;
Described construction area is provided with safeguard structure, described safeguard structure be C font and and described construction area interval arrange, described safeguard structure comprises the long limit protection department extended along rivers length direction and two the minor face protection departments laying respectively at protection department both ends place, described long limit, two described minor face protection departments are extend to form convex structure by two ends of described long limit protection department to the direction of rivers respectively, described in described long limit protection department and two, minor face protection department encloses and forms C font, and described long limit protection department comprises the some fender piles buried underground successively along rivers length direction, two described minor face protection departments include the some fender piles buried underground successively, and be provided with some interlocking piles in two described minor face protection departments near the end of rivers.
Further, in described long limit, protection department is embedded with some anchoring piles successively away from rivers side, and anchoring pile described in each is connected with the wherein fender pile described in of described long limit protection department respectively.
Particularly, be provided with cap in the top of anchoring pile described in each and the described fender pile top corresponding with this anchoring pile, between two described caps, adopt steel strand to connect for overall.
Particularly, each described anchoring pile is all arranged along the length direction of described long limit protection department successively uniform intervals.
Particularly, the spacing distance of described safeguard structure and described construction area is 10-15m.
Particularly, each described fender pile is drilled pile.
Further, the diameter of described drilled pile is determined according to the degree of depth of described excavation of foundation pit.
The present invention has following beneficial effect:
In means of defence of the present invention, first determine the construction area on foundation ditch basis, then safeguard structure is had in the arranged outside of this construction area, certainly this safeguard structure should have certain spacing with the outside of construction area, in C font, construction area is surrounded for safeguard structure entirety, being specially its part is the long limit protection department extended along rivers length direction, this long limit protection department all adopts fender pile to form, safeguard structure another part includes two minor face protection departments, two minor face protection departments are all in circular arc, mainly comprise several fender piles, end near rivers is provided with some interlocking piles simultaneously.In this means of defence, safeguard structure entirety is in C font, long limit protection department adopts fender pile composition, and two minor face protection departments are all in arc-shaped, it effectively can strengthen the integral rigidity of each fender pile, reduces the deformation quantity of each fender pile, namely all inner support or anchor structure is not provided with at each fender pile in minor face protection department place, thus the difficulty of construction of protection can be reduced, and for the radial load that the arc structure of two minor face protection departments produces, then can by the opposing of each interlocking pile abatement.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is that the safeguard structure that the rivers of the embodiment of the present invention face limit construction protection method arranges schematic diagram;
Fig. 2 is the syndeton schematic diagram that the rivers of Fig. 1 face between the anchoring pile of limit construction protection method and fender pile.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
See Fig. 1, the embodiment of the present invention provides a kind of rivers to face limit construction protection method, be mainly used in protection rivers 1 and face limit foundation pit construction, especially darker foundation ditch, namely foundation pit construction is carried out near near rivers 1, the stability of foundation pit structure when means of defence is then to ensure foundation pit construction, specifically comprises following construction sequence:
First the construction area 2 on foundation ditch basis is determined at rivers 1 Lin Bianchu, and protect outside it after this construction area 2 is determined, and usually due to rivers 1 face limit foundation pit construction time, the construction area 2 on foundation ditch basis wherein one facing to rivers 1, can only protect other three faces of construction area 2 this, and for ensureing safety during foundation pit construction, construction area 2 deviates from the side of rivers 1 as the long limit of protection, is then minor face near the both sides of rivers 1.Be specially and have safeguard structure 3 in construction area 2 arranged outside on foundation ditch basis, safeguard structure 3 entirety is in C font, and and construction area 2 interval arrange, between the edge of i.e. safeguard structure 3 and construction area 2, there is certain distance, safeguard structure 3 comprises the long limit protection department 31 extended along rivers 1 length and two the minor face protection departments 32 laying respectively at this protection department 31 both ends, long limit place, long limit protection department 31 is positioned at the side of construction area 2 away from rivers 1, two minor face protection departments 32 lay respectively at the both sides of construction area 2 near rivers 1, two minor face protection departments 32 are respectively by two ends of long limit protection department 31 to the close convex structure extended to form of rivers 1, enclosed by a long limit protection department 31 and two minor face protection departments 32 and form C font, and formed enclosing on construction area 2 three directions, long limit protection department 31 and two minor face protection departments 32 are mainly all made up of some fender piles 311, the protection to foundation ditch basis is formed by each fender pile 311 be embedded near construction area 2, also be embedded with some interlocking piles 321 at two minor face protection departments 32 near the end of rivers 1 simultaneously.
In the present invention, safeguard structure 3 entirety is in C font, and all form convex structure at two minor face protection department 32 places, the rigidity of each fender pile 311 entirety can be strengthened by this convex structure, effectively reduce the distortion of each fender pile 311, without the need to each fender pile 311 at two minor face protection departments 32, inner support is provided with when constructing to this, also without the need to adopting anchor structure, construction of prevention work is more convenient, and the radial load produced when two arc structures are arranged, then can be resisted by the interlocking pile 321 being arranged at two minor face protection department 32 ends, and the plane width of interlocking pile 321 is relevant with the cutting depth of foundation ditch, namely can calculate by the cutting depth of foundation ditch the plane width determining interlocking pile 321.Fender pile 311 adopts drilled pile usually; can first hole at assigned address; then concreting is formed; be beneficial to the protection forming foundation pit construction; the diameter of each drilled pile then also should be determined according to the degree of depth of excavation of foundation pit, and be similar to and can be when the degree of depth of excavation of foundation pit is larger, then the diameter of each drilled pile also should be bigger; to guarantee the stability of foundation ditch inner structure, ensure protection effect.Should be not excessive for safeguard structure 3 and the spacing distance of construction area 2, should be not too small yet, general control is between 10-15m, the distance being specially each fender pile 311 and construction area 2 edge should between 10-15m, and when apart from time excessive, then each fender pile 311 is difficult to form good protective action to foundation pit construction, too small, easily destroys the foundation ditch basis of construction area 2 when burying fender pile 311 underground.
See figure and Fig. 2, optimize above-described embodiment, safeguard structure 3 also includes some anchoring piles 312, each anchoring pile 312 is buried underground successively, burial place for each anchoring pile 312 then should be positioned at the side of long limit protection department 31 away from rivers 1, and each anchoring pile 312 is connected with a wherein fender pile 311 of long limit protection department 31 respectively.In the present embodiment, anchoring pile 312 fender pile 311 number that number will be less than long limit protection department 31 is set, namely the wherein partial protection stake 311 of long limit protection department 31 connects one to one with anchoring pile 312, the mode that combines with fender pile 311 of anchoring pile 312 is adopted to form protection to foundation pit construction to this protection department 31 place, long limit at safeguard structure 3, certain pretension is produced, to reduce the deflection of fender pile 311 by anchoring pile 312 pairs of fender piles 311.Be specially and be provided with cap 314 at the tip position of the top of each anchoring pile 312 and the fender pile 311 corresponding with this anchoring pile 312, the anchoring pile 312 of each group correspondence is connected as a whole with between fender pile 311 by two caps 314, then usually adopts steel strand 313 to connect between two caps 314.Each anchoring pile 312 is along the length direction uniform intervals setting successively of long limit protection department 31, thus make the pretension of each anchoring pile 312 to long limit protection department 31 entirety more balanced, specifically each anchoring pile 312 is all embedded in ground, and each fender pile 311 all has part-structure elevates above the soil, and the cap 314 being now positioned at anchoring pile 312 top place is located along the same line with the cap 314 being positioned at fender pile 311 top place, steel strand 313 are adopted to connect between the two, the pretension of anchoring pile 312 pairs of fender piles 311 is made to be horizontal direction, but also can according to the degree of depth of foundation ditch in construction area 2 by regulating steel strand 313 to change the pretension of anchoring pile 312 to the fender pile 311 corresponding with it, the deformation quantity at fender pile 311 top place can be reduced largely, certainly also should determine according to the degree of depth of foundation ditch for the diameter of anchoring pile 312.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. rivers face a limit construction protection method, facing limit foundation pit construction, it is characterized in that: comprise following construction sequence for protecting rivers:
Face flange in rivers and determine foundation ditch foundation construction region;
Described construction area is provided with safeguard structure, described safeguard structure be C font and and described construction area interval arrange, described safeguard structure comprises the long limit protection department extended along rivers length direction and two the minor face protection departments laying respectively at protection department both ends place, described long limit, two described minor face protection departments are extend to form convex structure by two ends of described long limit protection department to the direction of rivers respectively, described in described long limit protection department and two, minor face protection department encloses and forms C font, and described long limit protection department comprises the some fender piles buried underground successively along rivers length direction, two described minor face protection departments include the some fender piles buried underground successively, and be provided with some interlocking piles in two described minor face protection departments near the end of rivers.
2. rivers as claimed in claim 1 face limit construction protection method, and it is characterized in that: in described long limit, protection department is embedded with some anchoring piles successively away from rivers side, anchoring pile described in each is connected with the wherein fender pile described in of described long limit protection department respectively.
3. rivers as claimed in claim 2 face limit construction protection method, it is characterized in that: be provided with cap in the top of anchoring pile described in each and the described fender pile top corresponding with this anchoring pile, adopt steel strand to connect for overall between two described caps.
4. rivers as claimed in claim 2 face limit construction protection method, it is characterized in that: each described anchoring pile is all arranged along the length direction of described long limit protection department successively uniform intervals.
5. rivers as claimed in claim 1 face limit construction protection method, it is characterized in that: the spacing distance of described safeguard structure and described construction area is 10-15m.
6. rivers as claimed in claim 1 face limit construction protection method, it is characterized in that: each described fender pile is drilled pile.
7. rivers as claimed in claim 1 face limit construction protection method, it is characterized in that: the diameter of described drilled pile is determined according to the degree of depth of described excavation of foundation pit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510243996.3A CN104863161B (en) | 2015-05-13 | 2015-05-13 | Rivers face side construction protection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510243996.3A CN104863161B (en) | 2015-05-13 | 2015-05-13 | Rivers face side construction protection method |
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| Publication Number | Publication Date |
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| CN104863161A true CN104863161A (en) | 2015-08-26 |
| CN104863161B CN104863161B (en) | 2017-06-13 |
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| CN201510243996.3A Active CN104863161B (en) | 2015-05-13 | 2015-05-13 | Rivers face side construction protection method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100563272B1 (en) * | 2005-08-24 | 2006-03-27 | 주식회사 진광건설 엔지니어링 건축사사무소 | Equipment of steel mold for construction foundation work |
| CN101368387A (en) * | 2008-09-16 | 2009-02-18 | 中铁大桥局集团第一工程有限公司 | Open type open-cut foundation ditch supporting method |
| CN202157581U (en) * | 2011-05-10 | 2012-03-07 | 江苏南通二建集团有限公司 | Foundation-pit limb shaping protection device |
| CN202954366U (en) * | 2012-11-22 | 2013-05-29 | 江苏省交通工程集团有限公司 | Support piling wall structure for bridge near-water foundation pit excavation |
| CN103603358A (en) * | 2013-10-12 | 2014-02-26 | 姚攀峰 | Multi-platform retaining structure and construction method |
-
2015
- 2015-05-13 CN CN201510243996.3A patent/CN104863161B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100563272B1 (en) * | 2005-08-24 | 2006-03-27 | 주식회사 진광건설 엔지니어링 건축사사무소 | Equipment of steel mold for construction foundation work |
| CN101368387A (en) * | 2008-09-16 | 2009-02-18 | 中铁大桥局集团第一工程有限公司 | Open type open-cut foundation ditch supporting method |
| CN202157581U (en) * | 2011-05-10 | 2012-03-07 | 江苏南通二建集团有限公司 | Foundation-pit limb shaping protection device |
| CN202954366U (en) * | 2012-11-22 | 2013-05-29 | 江苏省交通工程集团有限公司 | Support piling wall structure for bridge near-water foundation pit excavation |
| CN103603358A (en) * | 2013-10-12 | 2014-02-26 | 姚攀峰 | Multi-platform retaining structure and construction method |
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| CN104863161B (en) | 2017-06-13 |
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