CN208934002U - A kind of barrier wall structure - Google Patents

A kind of barrier wall structure Download PDF

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Publication number
CN208934002U
CN208934002U CN201821146865.9U CN201821146865U CN208934002U CN 208934002 U CN208934002 U CN 208934002U CN 201821146865 U CN201821146865 U CN 201821146865U CN 208934002 U CN208934002 U CN 208934002U
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China
Prior art keywords
bored concrete
concrete pile
barricade
barrier
apron
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CN201821146865.9U
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Chinese (zh)
Inventor
徐学军
华新春
王谊
阮龙飞
张飞
杨东香
张宁
陈中明
刘彬
沈家法
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Changjiang Institute of Survey Planning Design and Research Co Ltd
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Changjiang Institute of Survey Planning Design and Research Co Ltd
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Abstract

The utility model relates to technical field of civil engineering, more particularly, to a kind of barrier wall structure.The native side of facing of the barrier wall structure, including barricade, front-seat bored concrete pile, heel row bored concrete pile and protection-apron, protection-apron is successively arranged front-seat bored concrete pile, antiseepage stake and heel row bored concrete pile, and front-seat bored concrete pile abuts protection-apron vertical section, the immediately preceding row's bored concrete pile of antiseepage stake.The barrier wall structure of the utility model will be usually used in foundation pit supporting construction and retaining wall foundation processing structure conjunctive use, both can guarantee barricade meet antiskid, it is anti-incline, Antiseepage stability and reduce differential settlement, barricade floor elevation can also be lifted, reduce place excavation face.Especially suitable for the narrow situation of soft soil foundation and construction site, the shortcomings that conventional barrier wall structure of constructing on soft soil foundation needs construction surface big (doing water-retaining cofferdam) after wall is effectively overcome.

Description

A kind of barrier wall structure
Technical field
The utility model relates to technical field of civil engineering, more particularly, to a kind of barrier wall structure.
Background technique
In the civil engineerings such as hydraulic engineering, maritime engineering, road and bridge engineering, architectural engineering, barricade application is extremely wide, pattern Very much, there are cantilevered wall, buttress type wall, load retaining wall wall and sheet pile wall etc..But above-mentioned tradition barricade is generally both needed to dry work, right In the larger barricade of height, floor elevation is lower, needs deep pit excavation;It is above-mentioned to meet for the soft clay area for the Binjiang that borders on the river It is required that generally requiring to build towering cofferdam, and deep pit excavation is needed, carries out pit maintenance soil.Spend costly, construction period Also very long, it often results in and builds difficulty and investment beyond major project as the barricade of necessary structure, put the cart before the horse.
Summary of the invention
In order to solve the above problem, the utility model provides one kind and occupies little space, excavate small work surface, easy construction, apply The fireballing barrier wall structure of work.
The technical solution adopted in the utility model is: a kind of barrier wall structure, including barricade, and setting is used in barricade bottom The front-seat bored concrete pile and heel row bored concrete pile of barricade are supported, and the protection-apron below barricade is set, it is characterised in that: the barricade L-shaped setting, the straight wall of bottom plate and vertical section including horizontal segment;The L-shaped setting of protection-apron, vertical section are being in straight wall just Lower section, and it is concordant with straight wall, and horizontal segment is stretched out to sky side is faced;The native side of facing of the protection-apron is successively arranged front-seat bored concrete pile, antiseepage Stake and heel row bored concrete pile, the front row bored concrete pile abut protection-apron vertical section, the immediately preceding row's bored concrete pile of antiseepage stake.
Preferably, the lower part of the straight wall falls to filter rib body after being equipped with drainpipe and wall.
Further, the filter rib body that falls after the wall is made of rubble, medium coarse sand and non-woven fabrics, and the drainpipe uses Φ 75~100 pvc pipe.
Preferably, the front row bored concrete pile townhouse solid matter is arranged in and faces sky side, diameter is 0.6~1.0m.
Further, the heel row bored concrete pile arranged for interval is 0.6~1.0m facing native side, diameter.
Preferably, the antiseepage stake uses high-pressure rotary jet grouting pile or deep-mixed pile, diameter is 0.5~1.0m.
Further, the front-seat bored concrete pile, antiseepage stake and heel row bored concrete pile protrude into 0.1m in barricade bottom plate.
A kind of construction method of barrier wall structure, comprising the following steps:
A, first construction place arrange and shallow-layer excavates;
B, then face native side line injection front row bored concrete pile along protection-apron vertical section, and along front-seat bored concrete pile face native side set and beat and prevent Stake is seeped, faces native lateral root in antiseepage stake and 1~3 row's heel row bored concrete pile is set according to barricade base plate size, deep pit monitor stability requirement interval;
C, after pile foundation construction is completed and reaches design strength, cut pile crown, pour barricade bottom plate, and by front-seat bored concrete pile, Heel row bored concrete pile and antiseepage stake top protrude into bottom plate 10cm;
D, after reinforcing bar concrete strength reaches design requirement, by the soil excavation of protection-apron part to design altitude, and shield is poured Smooth structure;
E, after the completion of protection-apron construction, barricade straight wall is poured, rolling earth behind retaining wall is then backfilled.
Preferably, falling to filter rib body and drainpipe after being equipped with 1~2 row's wall in the step e, in the straight wall.
The beneficial effect that the utility model obtains is: front-seat bored concrete pile and heel row bored concrete pile are used to support barricade, preceding irrigation and drainage It infuses stake and abuts protection-apron vertical section, front-seat bored concrete pile can bear the pressure of protection-apron conduction, therefore protection-apron wall thickness compares traditional structure Can suitably it reduce;After pile foundation construction is completed and reaches design strength, barricade bottom plate is poured as stake top crown beam, guarantees pile foundation branch The globality of shield;It falls to filter rib body and drainpipe after being equipped with 1~2 row's wall in straight wall, reduces barricade pressure.
The barrier wall structure of the utility model will be usually used in foundation pit supporting construction and retaining wall foundation processing structure conjunctive use, both Can guarantee barricade meet antiskid, it is anti-incline, Antiseepage stability and reduce differential settlement, barricade floor elevation can also be lifted, reduce field Ground excavation face.Especially suitable for the narrow situation of soft soil foundation and construction site, effectively overcome construct on soft soil foundation it is conventional Barrier wall structure needs the shortcomings that construction surface big (doing water-retaining cofferdam) after wall.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model;
Fig. 2 is arrangement of pile foundation schematic diagram.
Specific embodiment
The utility model is further described in the following with reference to the drawings and specific embodiments.
As shown in Figure 1, falling filter rib body 2, preceding after a kind of barrier wall structure of the utility model, including barricade 1, drainpipe 3, wall Arrange bored concrete pile 4, heel row bored concrete pile 5, antiseepage stake 6 and protection-apron 7, the L-shaped setting of barricade 1, bottom plate and vertical section including horizontal segment Straight wall, front-seat bored concrete pile 4, heel row bored concrete pile 5 and antiseepage stake 6 empty laterally faced native side and are sequentially arranged that (left side is faces in Fig. 1 by facing Native side, right side are to face sky side), it is arranged at the bottom of 1 bottom plate of barricade, wherein front-seat bored concrete pile 4 and heel row bored concrete pile 5 are as gear The support of 1 bottom plate of wall, the immediately preceding row's bored concrete pile 4 of antiseepage stake 6, major function is antiseepage, and can enhance the mechanical property of inter-pile soil, Be conducive to the monolithic stability of barricade 1.
As shown in connection with fig. 2, in the present embodiment, front-seat 4 townhouse solid matter of bored concrete pile arrangement, 5 arranged for interval of heel row bored concrete pile, directly Diameter is 0.6~1.0m, and prefabricated pile or steel-pipe pile replacement can also be used in front-seat bored concrete pile 4 and heel row bored concrete pile 5;Antiseepage stake 6 is adopted With high-pressure rotary jet grouting pile or deep-mixed pile, diameter is 0.5~1.0m.6 length of front-seat bored concrete pile 4, heel row bored concrete pile 5 and antiseepage stake Barricade stability requirement after comprehensive geology condition, cutting depth, earth-retaining height, groundwater depth and work is needed to determine with spacing.It is front-seat 0.1m in 1 bottom plate of barricade is protruded into bored concrete pile 4, heel row bored concrete pile 5 and antiseepage stake 6, and 1 bottom plate of barricade can be used as stake top crown beam, is guaranteed The globality of pile foundation supporting.
The L-shaped setting of protection-apron 7, vertical section are in the underface of straight wall, and concordant with straight wall, and horizontal segment is stretched to sky side is faced Out, the soil that faces of protection-apron 7 abuts against on front-seat bored concrete pile 4, the pressure conduction that protection-apron 7 can just be subject to front-seat bored concrete pile 4, therefore The pressure of protection-apron 7 itself greatly reduces, and wall thickness can also be thinned relatively.
The lower part of 1 straight wall of barricade is arranged in the filter rib body 2 that falls after drainpipe 3 and wall, can effectively reduce soil pressure after wall, according to It according to the actual height and pressure of 1 straight wall of barricade, can be set multiple rows of, in the present embodiment, be arranged in the lower part of 1 straight wall of barricade It is fallen after two rows of drainpipes 3 and wall and filters rib body 2, the filter rib body 2 that falls after wall is made of rubble, medium coarse sand and non-woven fabrics, and drainpipe 3 is adopted With the pvc pipe of Φ 75~100.
The construction of pile foundation (front-seat bored concrete pile, heel row bored concrete pile and antiseepage stake), barricade 1 and protection-apron 2 can be according to following rule Model is carried out: JGJ 79-2012 building foundation treatment technical specification, JGJ 94-2008 Design of Architecture Pile Foundation specification, JGJ 106- 2003 architecture foundation pile inspection specifications, drill-pouring construction regulations DG-TJ 08-202-2007, DLT-5200-2004 water power Hydraulic engineering High Pressure Jet Grouting Technique, Construction Monitoring of Foundation Pit Engineering regulation (DGTJ08-2006), architecture Foundation Pit Engineering monitor skill Art specification GB 50497-2009, SL 265-2016 water sluice project, Base hole supporting technology regulation JGJ120-2012 and water are built Work Code for design of concrete structures SL191-2008.
A kind of construction method of barrier wall structure, comprising the following steps:
A, first construction place arrange and shallow-layer excavates;
B, then in conjunction with barricade stability requirement after geological conditions, cutting depth, earth-retaining height, groundwater depth foundation pit and work Pile foundation is set along 7 sideline of protection-apron: facing native side line injection front row bored concrete pile 4 along 7 vertical section of protection-apron, and faces along front-seat bored concrete pile 4 Native side set plays antiseepage stake 6, faces native lateral root according to 1 base plate size of barricade, deep pit monitor stability requirement interval setting 1~3 in antiseepage stake 6 Arrange heel row bored concrete pile 5 (two rows of heel row bored concrete piles are designed in the present embodiment);
C, after pile foundation construction is completed and reaches design strength, cut pile crown, pour 1 bottom plate of barricade, and by front-seat bored concrete pile, Heel row bored concrete pile and antiseepage stake top protrude into bottom plate 10cm, and 1 bottom plate of barricade can be used as stake top crown beam, guarantee the entirety of pile foundation supporting Property;
D, after reinforcing bar concrete strength reaches design requirement, by the soil excavation of 7 part of protection-apron to design altitude, and shield is poured Smooth 7 structure;
E, after the completion of protection-apron 7 is constructed, 1 straight wall of barricade is poured, rolling earth behind retaining wall is then backfilled;To reduce soil pressure after wall, need Be arranged after 1~2 row's wall according to the depth of fill and fall to filter rib body 2 and PVC drain pipe 3 (present case setting is two rows of).
The basic principle and key structural feature of the utility model has been shown and described above.The utility model is not by above-mentioned The limitation of example, on the premise of not departing from the spirit and scope of the utility model, the utility model also have various change and change Into these changes and improvements are both fallen in the range of claimed invention.The utility model requires protection scope by Appended claims and its equivalent thereof.

Claims (7)

1. a kind of barrier wall structure, including barricade (1), and be arranged and be used to support the front-seat bored concrete pile of barricade (1) in barricade (1) bottom (4) and heel row bored concrete pile (5), and the protection-apron (7) that is arranged below barricade (1), it is characterised in that: the barricade (1) is L-shaped Setting, the straight wall of bottom plate and vertical section including horizontal segment;The L-shaped setting of the protection-apron (7), vertical section be in straight wall just under Side, and it is concordant with straight wall, and horizontal segment is stretched out to sky side is faced;The protection-apron (7) face native side be successively arranged front-seat bored concrete pile (4), Antiseepage stake (6) and heel row bored concrete pile (5), the front row bored concrete pile (4) abut protection-apron (7) vertical section, and the antiseepage stake (6) abuts Front-seat bored concrete pile (4).
2. barrier wall structure according to claim 1, it is characterised in that: the lower part of the straight wall is equipped with drainpipe (3) and wall It falls to filter rib body (2) afterwards.
3. barrier wall structure according to claim 2, it is characterised in that: fallen after the wall filter rib body (2) using rubble, in it is thick Sand and non-woven fabrics are made, and the drainpipe (3) uses the pvc pipe of Φ 75~100.
4. barrier wall structure according to claim 1, it is characterised in that: described front row bored concrete pile (4) townhouse solid matter is arranged in Face sky side, diameter is 0.6~1.0m.
5. barrier wall structure according to claim 1 or 2 or 4, it is characterised in that: heel row bored concrete pile (5) arranged for interval Facing native side, diameter is 0.6~1.0m.
6. barrier wall structure according to claim 1, it is characterised in that: the antiseepage stake (6) uses high-pressure rotary jet grouting pile or depth Layer mixing pile, diameter are 0.5~1.0m.
7. barrier wall structure according to claim 5, it is characterised in that: the front row bored concrete pile (4), heel row bored concrete pile (5) 0.1m in barricade (1) bottom plate is protruded into antiseepage stake (6).
CN201821146865.9U 2018-07-19 2018-07-19 A kind of barrier wall structure Active CN208934002U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821146865.9U CN208934002U (en) 2018-07-19 2018-07-19 A kind of barrier wall structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821146865.9U CN208934002U (en) 2018-07-19 2018-07-19 A kind of barrier wall structure

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CN208934002U true CN208934002U (en) 2019-06-04

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110344418A (en) * 2019-07-12 2019-10-18 江苏南通二建集团有限公司 The structure and its construction technology of support system in a kind of deep basal pit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110344418A (en) * 2019-07-12 2019-10-18 江苏南通二建集团有限公司 The structure and its construction technology of support system in a kind of deep basal pit

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