CN203320532U - Protection device of nearby pile foundation close to deep foundation pit - Google Patents

Protection device of nearby pile foundation close to deep foundation pit Download PDF

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Publication number
CN203320532U
CN203320532U CN2013202258697U CN201320225869U CN203320532U CN 203320532 U CN203320532 U CN 203320532U CN 2013202258697 U CN2013202258697 U CN 2013202258697U CN 201320225869 U CN201320225869 U CN 201320225869U CN 203320532 U CN203320532 U CN 203320532U
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CN
China
Prior art keywords
pile
foundation
foundation ditch
anchor
foundation pit
Prior art date
Application number
CN2013202258697U
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Chinese (zh)
Inventor
杜金龙
尹小波
郭棋武
陈鹏飞
胡泽超
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中南大学
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Application filed by 中南大学 filed Critical 中南大学
Priority to CN2013202258697U priority Critical patent/CN203320532U/en
Application granted granted Critical
Publication of CN203320532U publication Critical patent/CN203320532U/en

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Abstract

The utility model discloses a protection device of a nearby pile foundation close to a deep foundation pit. The protection device structurally comprises a pile anchor support structure arranged on a side wall of the foundation pit, wherein the pile anchor support structure is provided with support piles; the length of each support pile is greater than the excavation depth of the foundation pit; crown beams are arranged at the tops of the support piles; an ejector anchor net is arranged on one side, facing towards the foundation pit, of each support pile; the outer side of the ejector anchor net is sprayed with a concrete surface layer; anchor rods are arranged on the inner sides of the support piles, and inserted into a soil body outside the foundation pit downward; a slope is arranged at the periphery of the top of the foundation pit; an extra-pit drainage ditch is arranged on the inner side of the slope; an intra-pit drainage ditch is arranged at the bottom of the foundation pit; an intra-pit cement and soil mixing pile reinforcement body is arranged along the periphery of the bottom in the foundation pit; and an extra-pit cement and soil mixing pile reinforcement body is arranged between the outside of the foundation pit and a pile foundation of a nearby building. The protection device can overcome the defects in the prior art, improves a prevention effect on the foundation pit, and saves money.

Description

Near pile foundation protector a kind of next-door neighbour's deep foundation ditch
Technical field
The utility model relates to field of civil engineering, near pile foundation protector especially a kind of next-door neighbour's deep foundation ditch.
Background technology
Along with the development of urban construction, highrise building increases gradually, and the city building are day by day intensive.Due to the requirement of using function and the exploitation underground space, highrise building generally all is designed with the basement of larger planar dimension and the degree of depth.The precipitation of basement foundation ditch, excavation cause cheating outer land movement, and then contiguous building pile foundation is impacted.Excavation of foundation pit has a negative impact to the Adjacent Pile Foundation plinth, thereby will make the pile foundation fracture cause collapsing of building when serious, and this is particularly important to the densely built area be seated on soft foundation.On market, be badly in need of now a kind ofly can controlling the hole week land movement that foundation pit dewatering, excavation cause, the lower pile foundation protection structure of cost simultaneously.
The utility model content
The technical problems to be solved in the utility model is to provide near the pile foundation protector of a kind of next-door neighbour's deep foundation ditch, can solve the deficiencies in the prior art, by agitation pile, spray anchor net and supporting organ timbering are set, reduce land movement outside hole that excavation of foundation pit causes, and then reduce or avoid the adverse effect to neighboring piles.The protection thinking of adopt in hole, the hole external reinforcement being worked along both lines; by rationally being set, outer gutter, hole effectively prevents the inflow of outside current; inner gutter can be got rid of the water in foundation ditch in time; under the prerequisite of guaranteeing foundation pit enclosure structure safety; reduce cheating the disturbance of the outer soil body as far as possible; reduce its vertical displacement and horizontal movement, thereby alleviate the impact on the Adjacent Pile basis, play the protective effect to pile foundation.
For solving the problems of the technologies described above, technical solution adopted in the utility model is as follows.
Near pile foundation protector a kind of next-door neighbour's deep foundation ditch, structure comprises the pile-anchor retaining structure that is arranged on foundation pit side-wall, and the pile-anchor retaining structure is provided with soldier pile, and soldier pile length is greater than the excavation of foundation pit degree of depth, and the soldier pile top arranges Guan Liang; Be provided with spray anchor net at soldier pile towards a side of foundation ditch, spray anchor net outside sprayed mortar surface layer, the soldier pile inboard arranges anchor pole, in the outer soil body of the oblique lower insertion Foundation Pit of anchor pole; The top perimeter of foundation ditch is provided with slope, and the inboard, slope arranges outer gutter, hole, and the foundation ditch bottom arranges hole internal drainage ditch; The foundation ditch inner bottom part arranges underground water earth cement mixing method body along periphery, and the outer cement mixing method reinforcing body in hole is set outside foundation ditch and between the adjacent structure pile foundation.
As preferably, the included angle A of described anchor pole and described foundation pit side-wall is 30 °~60 °.
As preferably, described underground water earth cement mixing method body comprises long column and short column, and long column and short column are spaced.
As preferably, outside described hole, cement mixing method reinforcing body inside is provided with the arc pipe box and is plugged on the pipe fitting of arc pipe box inside; The outside of described supporting organ timbering is cast with cement mixing method.
As preferably, described pipe fitting adopts seamless steel pipe.
The beneficial effect that adopts technique scheme to bring is: in the utility model, use pile-anchor system to be fixed protection to foundation ditch, anchor pole inserts outside foundation pit side-wall with specific angle, can effectively improve constant intensity.Reinforcing body in hole is set along periphery at the bottom of Foundation Pit, carry out active to foundation pit deformation and reinforce, and when improving pattern foundation pit supporting structure intensity, land movement outside the hole caused from source control excavation of foundation pit, guarantee neighboring piles safety.Underground water earth cement mixing method body is arranged at intervals with long column and short column, is reducing, under the prerequisite of land movement, to have reduced raw-material use.Cheat the form that outer cement mixing method reinforcing body adopts cement mixing pile to combine with arc shrouds.Cement mixing pile plays the effect that reduces land movement, has the effect of water-stop curtain simultaneously.Be arranged at the intensity that the interior arc pipe box of cement mixing pile and pipe fitting have improved cement mixing pile, more be conducive to stop the distortion of the soil body.In addition, after engineering finishes, pipe fitting can take out from arc shrouds, recycling.In sleeve pipe, soil body sealing is inserted in space.
The accompanying drawing explanation
Fig. 1 is the schematic diagram of a specific embodiment of the utility model.
Fig. 2 is the front view of piled anchor supporting and protection structure and underground water earth cement mixing method body in specific embodiment of the utility model.
Fig. 3 is the top view of the outer cement mixing method reinforcing body in hole in specific embodiment of the utility model.
In figure: 1, foundation ditch; 2, pile-anchor retaining structure; 3, soldier pile; 4, spray anchor net; 5, concrete pavement; 6, anchor pole; 7, slope; 8, outer gutter, hole; 9, hole internal drainage ditch; 10, underground water earth cement mixing method body; 11, adjacent structure pile foundation; 12, the outer cement mixing method reinforcing body in hole; 13, long column; 14, short column; 15, arc shrouds; 16, pipe fitting; 17, Guan Liang; 18, cement mixing method.
The specific embodiment
With reference to Fig. 1-3, structure of the present utility model comprises the pile-anchor retaining structure 2 that is arranged on foundation ditch 1 sidewall, and pile-anchor retaining structure 2 is provided with soldier pile 3, and soldier pile 3 length are greater than foundation ditch 1 cutting depth, and soldier pile 3 tops arrange hat beam 17; Be provided with spray anchor net 4 at soldier pile 3 towards a side of foundation ditch 1, spray anchor net 4 outside sprayed mortar surface layers 5, soldier pile 3 inboards arrange anchor pole 6, in the oblique lower insertion foundation ditch 1 outer soil body in hole of anchor pole 6; The top perimeter of foundation ditch 1 is provided with slope 7,7 outer gutters 8, arranged outside hole, slope, and foundation ditch 1 bottom arranges hole internal drainage ditch 9; Foundation ditch 1 inner bottom part arranges underground water earth cement mixing method body 10 along periphery, and outer and 11 of the adjacent structure pile foundations of foundation ditch 1 arrange the outer cement mixing method reinforcing body 12 in hole.
It should be noted that described anchor pole 6 and the included angle A of described foundation ditch 1 sidewall are 45 °.
It should be noted that described underground water earth cement mixing method body 10 comprises long column 13 and short column 14, long column 13 and short column 14 are spaced.
It should be noted that outside described hole, cement mixing method reinforcing body 12 inside are provided with arc pipe box 15 and the pipe fitting 16 that is plugged on arc pipe box 15 inside; The outside of described supporting organ timbering is cast with cement mixing method 18.
In addition, described pipe fitting 16 adopts seamless steel pipe.
Operating principle of the present utility model is: in the utility model, use soldier pile 3 and anchor pole 6 to carry out the sidewall supporting of foundation ditch 1, anchor pole 6 inserts in foundation ditch 1 sidewall with the angle of 45 °, can effectively strengthen constant intensity.At the outer spray anchor net 4 that arranges of soldier pile 3, spray anchor net 4 outside sprayed mortar surface layers 5, play the effect that prevents that current from infiltrating.Soldier pile 3 tops arrange hat beam 17, and hat beam 17 makes soldier pile 3 form overall structures, is conducive to guarantee foundation ditch safety, reduce the displacement of the soil body after sidewall.Underground water earth cement mixing method body 10 is constructed after foundation ditch 1 is excavated to desired depth (floor level place), and underground water earth cement mixing method body 10 comprises long column 13 and short column 14, and long column 13 and short column 14 are spaced.Cheating outer cement mixing method reinforcing body 12 can setting before foundation ditch 1 excavation, be arranged on foundation ditch 1 and the adjacent structure pile foundation 11 that needs protection between.At first perform cement mixing method 18, insert therein arc shrouds 15, pipe fitting 16 is set in arc shrouds 15 simultaneously.After foundation ditch 1 has been constructed, pipe fitting 16 can take out from arc shrouds 15, and for reuse later, the space at arc pipe box 15 centers is used the soil body to fill up, and cost saves material.Outside hole outside foundation ditch 1, gutter 8 can effectively prevent the inflow of outside current, and inner hole internal drainage ditch 9 can be got rid of the water in foundation ditch 1 in time, reduces the impact of ponding on foundation ditch 1.
Above demonstration and described basic principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and manual, describes just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims (5)

1. one kind is close near the pile foundation protector of deep foundation ditch, it is characterized in that: structure comprises the pile-anchor retaining structure (2) that is arranged on foundation ditch (1) sidewall, pile-anchor retaining structure (2) is provided with soldier pile (3), soldier pile (3) length is greater than foundation ditch (1) cutting depth, and soldier pile (3) top arranges Guan Liang (17); Be provided with spray anchor net (4) at soldier pile (3) towards a side of foundation ditch (1), spray anchor net (4) outside sprayed mortar surface layer (5), soldier pile (3) inboard arranges anchor pole (6), in the outer soil body in the oblique lower insertion foundation ditch of anchor pole (6) (1) hole; The top perimeter of foundation ditch (1) is provided with slope (7), and inboard, slope (7) arranges outer gutter (8), hole, and foundation ditch (1) bottom arranges hole internal drainage ditch (9); Foundation ditch (1) inner bottom part arranges underground water earth cement mixing method body (10) along periphery, and hole outer cement mixing method reinforcing body (12) is set outside foundation ditch (1) and between adjacent structure pile foundation (11).
2. near pile foundation protector next-door neighbour's deep foundation ditch according to claim 1, it is characterized in that: described anchor pole (6) is 30 °~60 ° with the angle (A) of described foundation ditch (1) sidewall.
3. near pile foundation protector next-door neighbour's deep foundation ditch according to claim 1, it is characterized in that: described underground water earth cement mixing method body (10) comprises long column (13) and short column (14), and long column (13) and short column (14) are spaced.
4. near pile foundation protector next-door neighbour's deep foundation ditch according to claim 1 is characterized in that:, cement mixing method reinforcing body (12) inside is provided with arc pipe box (15) and is plugged on the pipe fitting (16) of arc pipe box (15) inside in described the hole outside; The outside of described supporting organ timbering is cast with cement mixing method (18).
5. near pile foundation protector next-door neighbour's deep foundation ditch according to claim 4, is characterized in that: described pipe fitting (16) employing seamless steel pipe.
CN2013202258697U 2013-04-28 2013-04-28 Protection device of nearby pile foundation close to deep foundation pit CN203320532U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2013202258697U CN203320532U (en) 2013-04-28 2013-04-28 Protection device of nearby pile foundation close to deep foundation pit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2013202258697U CN203320532U (en) 2013-04-28 2013-04-28 Protection device of nearby pile foundation close to deep foundation pit

Publications (1)

Publication Number Publication Date
CN203320532U true CN203320532U (en) 2013-12-04

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Application Number Title Priority Date Filing Date
CN2013202258697U CN203320532U (en) 2013-04-28 2013-04-28 Protection device of nearby pile foundation close to deep foundation pit

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103790185A (en) * 2014-01-29 2014-05-14 中国航空规划建设发展有限公司 Shock insulation groove enclosure wall for deep foundation shock insulation structure and constructing method of shock insulation groove enclosure wall
CN104264682A (en) * 2014-09-11 2015-01-07 成都市第六建筑工程公司 Anchor traction wall protection pile base layer concrete beam support pouring technology
CN105484160A (en) * 2015-12-11 2016-04-13 中交一公局第三工程有限公司 Method for digging deep foundation pit by gravity anchor
CN105756070A (en) * 2016-05-04 2016-07-13 山东大学 Assembled type foundation pit supporting and protecting structure system based on prefabricated members
CN105804092A (en) * 2016-05-03 2016-07-27 泰兴市第建筑安装工程有限公司 Anchor support device for deep foundation pit piles
CN106013171A (en) * 2016-06-30 2016-10-12 大连理工大学 Semi-rigid and semi-flexible support structure and method for deep foundation pit side wall
CN108360585A (en) * 2018-04-02 2018-08-03 山东建筑大学 Close on the underpinning method and building composite foundation of side slope Tall Building Foundation

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103790185A (en) * 2014-01-29 2014-05-14 中国航空规划建设发展有限公司 Shock insulation groove enclosure wall for deep foundation shock insulation structure and constructing method of shock insulation groove enclosure wall
CN104264682A (en) * 2014-09-11 2015-01-07 成都市第六建筑工程公司 Anchor traction wall protection pile base layer concrete beam support pouring technology
CN105484160A (en) * 2015-12-11 2016-04-13 中交一公局第三工程有限公司 Method for digging deep foundation pit by gravity anchor
CN105804092A (en) * 2016-05-03 2016-07-27 泰兴市第建筑安装工程有限公司 Anchor support device for deep foundation pit piles
CN105756070A (en) * 2016-05-04 2016-07-13 山东大学 Assembled type foundation pit supporting and protecting structure system based on prefabricated members
CN105756070B (en) * 2016-05-04 2018-01-12 山东大学 A kind of Fabricated Structure for Support of Excavation system based on prefabricated components
CN106013171A (en) * 2016-06-30 2016-10-12 大连理工大学 Semi-rigid and semi-flexible support structure and method for deep foundation pit side wall
CN108360585A (en) * 2018-04-02 2018-08-03 山东建筑大学 Close on the underpinning method and building composite foundation of side slope Tall Building Foundation

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C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20131204

Termination date: 20140428