CN207582471U - A kind of Retaining Structure with Double-row Piles equipped with deep layer prestress anchorage cable - Google Patents

A kind of Retaining Structure with Double-row Piles equipped with deep layer prestress anchorage cable Download PDF

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Publication number
CN207582471U
CN207582471U CN201720279447.6U CN201720279447U CN207582471U CN 207582471 U CN207582471 U CN 207582471U CN 201720279447 U CN201720279447 U CN 201720279447U CN 207582471 U CN207582471 U CN 207582471U
Authority
CN
China
Prior art keywords
campshed
double
prestress anchorage
anchorage cable
retaining structure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201720279447.6U
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Chinese (zh)
Inventor
徐明波
周爱兆
黄献文
沈昊
袁梓瑞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhenjiang Chuang Chuang Construction Technology Co Ltd
Jiangsu University of Science and Technology
Original Assignee
Zhenjiang Chuang Chuang Construction Technology Co Ltd
Jiangsu University of Science and Technology
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Publication date
Application filed by Zhenjiang Chuang Chuang Construction Technology Co Ltd, Jiangsu University of Science and Technology filed Critical Zhenjiang Chuang Chuang Construction Technology Co Ltd
Priority to CN201720279447.6U priority Critical patent/CN207582471U/en
Application granted granted Critical
Publication of CN207582471U publication Critical patent/CN207582471U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of Retaining Structure with Double-row Piles equipped with deep layer prestress anchorage cable, the rear campshed capping beam of campshed and the linking beam of the preceding campshed of connection and rear campshed after the preceding campshed capping beam of rear campshed, the preceding campshed of connection including preceding campshed, set on preceding campshed side, connection;Prestress anchorage cable is equipped between the preceding campshed and rear campshed, one end of the prestress anchorage cable is set on preceding campshed, and after the other end is by being set on the transfer steering of rear campshed, tensioning fixation is on linking beam.Whole bending stiffness increase, anti-side rigidity raising of the advantage for the double-row pile of the utility model, and slip casting is not needed to without inner support, prestress anchorage cable, convenient construction, it can once excavate on earth, construction efficiency is high, and supporting quality is safe and reliable, there is good applicability and reliability to deep-foundation pit engineering, it can try out in a variety of formation conditions, including weak soil stratum hard in, grit layer, various soft or hard differentiation rock stratum etc..

Description

A kind of Retaining Structure with Double-row Piles equipped with deep layer prestress anchorage cable
Technical field
The invention belongs to building foundation pit supporting mechanism technology field more particularly to a kind of pairs equipped with deep layer prestress anchorage cable Row Piles Supporting Structure.
Background technology
With the development of urban construction, deep-foundation pit engineering emerges in an endless stream, and all kinds of novel support patterns emerge in large numbers therewith.It is double Stake supporting construction because its Deformation control effect to foundation pit is good, supporting construction stability is strong, applied widely the advantages that, in recent years It is widely used in domestic deep-foundation pit engineering field.Along with high-rise appearance, the design of ultra-deep foundation pit also occurs often, conventional double Row Piles Supporting Structure (such as gate-type Retaining Structure with Double-row Piles or H type Retaining Structure with Double-row Piles) stake is long or geological condition more When complicated, since double-row pile only has one of connection in stake top so that the line of deflection variation between front and rear campshed may be not consistent, This leverages the bending resistance of double-row pile and whole anti-side rigidity.If solved by directly adding anchor cable, and need The problems such as underground piping, pipeline, foundation depth of Nearby Structure are considered when anchor cable is arranged.Therefore, how to reduce to closing on The problem of overall stiffness of double-row pile is given full play to while building requirement, is Retaining Structure with Double-row Piles urgent need to resolve.
Utility model content
Purpose of utility model:The whole bending stiffness that the utility model is to provide a kind of double-row pile increases, and double-row pile Globality and the Retaining Structure with Double-row Piles equipped with deep layer prestress anchorage cable that anti-side rigidity improves, control of horizontal displacement effect is good.
Technical solution:The Retaining Structure with Double-row Piles equipped with deep layer prestress anchorage cable of the utility model, including preceding campshed, After rear campshed set on preceding campshed side, the preceding campshed capping beam of the preceding campshed of connection, connection the rear campshed capping beam of campshed and Connect the linking beam of preceding campshed and rear campshed;Prestress anchorage cable is equipped between the preceding campshed and rear campshed, the prestress anchorage cable One end is set on preceding campshed, and after the other end is by being set on the transfer steering of rear campshed, tensioning fixation is on linking beam.
The utility model effectively cuts off the potential soil body and slides by deep layer prestress anchorage cable being set to connect between two campsheds Broken face makes full use of the collective effect between stake soil, adjusts the stress of double-row pile, changes the lateral pressure distribution of the soil body, improves The globality and anti-side rigidity of double-row pile enhance the control effect of Retaining Structure with Double-row Piles horizontal displacement so that horizontal displacement control Effect processed is good, and carries out tensioning again after prestress anchorage cable is first turned to so that front and rear campshed has prestressed anchor in same depth Rope is connected directly, and is effectively guaranteed gain effect of the prestress anchorage cable to front and rear campshed globality, and long to stake is double Pilework globality improvement effect is more obvious.
Furtherly, the transfer of the utility model includes be arranged in a mutually vertical manner two steering end plates and set on this two turn Steering reinforcing bar between end plate;Linking beam is equipped with the tensioning equipment for stretch-draw prestressing force anchor cable, and the tensioning equipment is from upper Include anchor disk, support plate and supporting table under and successively;Preceding campshed is equipped with the anchor of anchoring prestress anchor cable, anchoring dress It puts including anchor disk and anchor end plate.
It further says, the prestress anchorage cable of the utility model is equipped with the pvc pipe of L-type at transfer end.
Furtherly, the horizontal layout form of preceding campshed and rear campshed includes rectangular array arrangement, T-shaped formula arrangement, connects Arcuately arrangement, quincunx arrangement or double trigonometric expressions arrangement;Preceding campshed is concrete drilling bored concrete pile or prefabricated pile;Campshed is mixed afterwards Solidifying earth boring auger hole pouring pile or prefabricated pile;Linking beam is reinforced beam.
Advantageous effect:Compared with prior art, it is the advantages of the utility model:The entirety of the double-row pile of the utility model resists Curved rigidity increase, anti-side rigidity improve, and do not need to slip casting without inner support, prestress anchorage cable, and convenient construction can be excavated once Bottom, construction efficiency are high, and supporting quality is safe and reliable, there is good applicability and reliability to deep-foundation pit engineering, can try out in A variety of formation conditions, including weak soil stratum hard in, grit layer, various soft or hard differentiation rock stratum etc..
Description of the drawings
Fig. 1 is the structure diagram of the utility model Retaining Structure with Double-row Piles;
Fig. 2 is the structure diagram of two Guan Liang of anchor cable of the utility model;
Fig. 3 is anchor enlarged drawing of the anchor cable of the utility model in preceding campshed;
Transfer enlarged drawing of the anchor cable in rear campshed that it is the utility model that Fig. 4, which is,;
Tensioning equipment enlarged drawing of the anchor cable on linking beam that it is the utility model that Fig. 5, which is,.
Specific embodiment
The technical solution of the utility model is described further with reference to embodiment.
As shown in Figures 1 and 2, the Retaining Structure with Double-row Piles equipped with deep layer prestress anchorage cable including preceding campshed 1, is set on After the rear campshed 2 of preceding 1 side of campshed, the preceding campshed capping beam 3 of the preceding campshed 1 of connection, connection the rear campshed capping beam 4 of campshed 2 with And the linking beam 5 of the preceding campshed 1 of connection and rear campshed 2, preceding campshed 1 are concrete drilling bored concrete pile or prefabricated pile, rear campshed 2 is mixed Solidifying earth boring auger hole pouring pile or prefabricated pile, linking beam 5 are reinforced beam, and preceding campshed capping beam 3 and preceding campshed 1 are perpendicular, after Campshed capping beam 4 and rear campshed 2 are perpendicular.
Prestress anchorage cable 6 is equipped between the preceding campshed 1 and rear campshed 2, which can be multiple, and one end is led to The anchor 9 crossed on preceding campshed 1 is anchored, and after the other end is by being set on the steering of transfer 7 of rear campshed 2, is led to The tensioning equipment 8 on linking beam 5 is crossed, tensioning fixation is on linking beam 5.Wherein, transfer 7 includes being arranged in a mutually vertical manner Two turn to end plates 71 and two turn to steering reinforcing bar 72 between end plate 71, transfer 7 and rear 2 steel reinforcement cage of campshed jail set on this It is solidly connected, anchoring section reinforcement arrangement of reinforcement in pile body part is pre-, and stress anchor cable 6 is equipped with the pvc pipe of L-type at 7 end of transfer, such as Fig. 4 institutes Show;Tensioning equipment 8 includes anchor disk 81, support plate 82 and supporting table 83 successively from top to bottom, as shown in Figure 5;Anchor 9 includes Anchor disk 91 and anchor end plate 92, anchor 9 are securely connect with preceding 1 steel reinforcement cage of campshed, and pile body part anchoring section strengthens arrangement of reinforcement, such as Shown in Fig. 3.
The horizontal layout form of the preceding campshed 1 of the utility model and rear campshed 2 includes rectangular array arrangement, T-shaped formula cloth It puts, multi-arch type arrangement, quincunx arrangement or double trigonometric expressions arrangement, the embedded depth of preceding campshed 1 may be less than or equal to rear campshed 2 Underground length.
The construction method of the double supporting construction of the utility model includes the following steps:
(1) according to construction site exploration report and pattern foundation pit supporting structure Stability Checking as a result, determining preceding campshed 1 and rear campshed 2 Arrangement form and prestress anchorage cable 6 tensioning value;
(2) campshed 2 drills afterwards, completes the making of steel reinforcement cage, and transfer 7 and pre-buried L-type pvc pipe and steel reinforcement cage is secured Connection, penetrates prestress anchorage cable 6, the prestress anchorage cable 6 is sunk to underground with steel reinforcement cage along the pile body of rear campshed 2, is poured Build concrete;
(3) campshed 1 drills before, completes the making of steel reinforcement cage, and anchor 9 with steel reinforcement cage is securely connect, answers prestressing force Anchor cable there are 20cm excess length in preceding stake 1, prestress anchorage cable 6 sinks to underground along pile body with steel reinforcement cage, pours Concrete;
(4) making of preceding campshed capping beam 3, rear campshed capping beam 4, linking beam 5 and steel reinforcement cage is completed, in linking beam 5 Pre-buried pvc pipe so that prestress anchorage cable 6 is isolated with concrete, facilitates tensioning, pours preceding campshed capping beam 3, rear campshed capping beam 4 and the concrete of linking beam.
(5) after concrete reaches design strength, pulling force first is applied to prestress anchorage cable 6 using hoist engine so that in advance should Power anchor cable 6 carries out cutting native operation, (cuts native operation to complete) after the pulling force for reaching design, uses jack pair prestress anchorage cable 6 apply prestressing force, are fixed using anchor disk.
(6) excavation of foundation pit is in the construction process monitored the prestressing force of prestress anchorage cable, can be according to the practical feelings of engineering Condition is adjusted the prestressing force of prestress anchorage cable 6.
For the double-row pile of the utility model more traditional " first constructing, post-stretching " and prestress anchorage cable composite structure, Prestressed application is just completed before excavation of foundation pit, can directly be excavated on earth in Excavation Process, speed of application is fast;And Each layer prestressd anchor cable can be adjusted in the construction process, Deformation control effect is good, surrounding enviroment is influenced small.

Claims (8)

1. a kind of Retaining Structure with Double-row Piles equipped with deep layer prestress anchorage cable, it is characterised in that:The supporting construction includes preceding campshed (1), the rear campshed (2) set on preceding campshed (1) side, connection before campshed (1) preceding campshed capping beam (3), connection after campshed (2) Rear campshed capping beam (4) and the preceding campshed (1) of connection and the linking beam (5) of rear campshed (2);The preceding campshed (1) and heel row Prestress anchorage cable (6) is equipped between stake (2), one end of the prestress anchorage cable (6) is set on preceding campshed (1), and the other end is by being set on After the transfer (7) of campshed (2) turns to afterwards, tensioning fixation is on linking beam (5), and the transfer (7) is including mutually hanging down Two directly set turn to end plate (71) and the steering reinforcing bar (72) between the two steering end plate (71), the preceding campshed (1) The anchor (9) of anchoring prestress anchor cable is equipped with, which includes anchor disk (91) and anchor end plate (92), turns To device (7) and anchor (9) positioned at same level.
2. the Retaining Structure with Double-row Piles according to claim 1 equipped with deep layer prestress anchorage cable, it is characterised in that:The company Binder (5) is equipped with the tensioning equipment (8) for stretch-draw prestressing force anchor cable (6).
3. the Retaining Structure with Double-row Piles according to claim 2 equipped with deep layer prestress anchorage cable, it is characterised in that:Described Drawing device (8) includes anchor disk (81), support plate (82) and supporting table (83) successively from top to bottom.
4. the Retaining Structure with Double-row Piles according to claim 1 equipped with deep layer prestress anchorage cable, it is characterised in that:It is described pre- Stress anchor cable (6) is in pvc pipe of transfer (7) end equipped with L-type.
5. the Retaining Structure with Double-row Piles according to claim 1 equipped with deep layer prestress anchorage cable, it is characterised in that:Before described The horizontal layout form of campshed (1) and rear campshed (2) includes rectangular array arrangement, T-shaped formula arrangement, multi-arch type arrangement, quincunx Arrangement or double trigonometric expressions arrangement.
6. the Retaining Structure with Double-row Piles according to claim 1 equipped with deep layer prestress anchorage cable, it is characterised in that:Before described Campshed (1) is concrete drilling bored concrete pile or prefabricated pile.
7. the Retaining Structure with Double-row Piles according to claim 1 equipped with deep layer prestress anchorage cable, it is characterised in that:After described Campshed (2) is concrete drilling bored concrete pile or prefabricated pile.
8. the Retaining Structure with Double-row Piles according to claim 1 equipped with deep layer prestress anchorage cable, it is characterised in that:The company Binder (5) is reinforced beam.
CN201720279447.6U 2017-03-22 2017-03-22 A kind of Retaining Structure with Double-row Piles equipped with deep layer prestress anchorage cable Expired - Fee Related CN207582471U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720279447.6U CN207582471U (en) 2017-03-22 2017-03-22 A kind of Retaining Structure with Double-row Piles equipped with deep layer prestress anchorage cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720279447.6U CN207582471U (en) 2017-03-22 2017-03-22 A kind of Retaining Structure with Double-row Piles equipped with deep layer prestress anchorage cable

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110820764A (en) * 2019-12-04 2020-02-21 大连理工大学 Construction method of three-dimensional rigid foundation pit supporting structure
CN111197312A (en) * 2019-12-24 2020-05-26 上海建工集团股份有限公司 L-shaped prestress pulling-anchoring engaged double-row pile foundation pit supporting structure and construction method thereof
CN113802573A (en) * 2021-09-28 2021-12-17 天津中勘天泽建筑工程设计有限公司 Foundation pit prestress pressing plate type multi-row supporting structure and method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110820764A (en) * 2019-12-04 2020-02-21 大连理工大学 Construction method of three-dimensional rigid foundation pit supporting structure
CN111197312A (en) * 2019-12-24 2020-05-26 上海建工集团股份有限公司 L-shaped prestress pulling-anchoring engaged double-row pile foundation pit supporting structure and construction method thereof
CN113802573A (en) * 2021-09-28 2021-12-17 天津中勘天泽建筑工程设计有限公司 Foundation pit prestress pressing plate type multi-row supporting structure and method

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

Granted publication date: 20180706

Termination date: 20200322

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