CN201981532U - Bearing type super deep underground continuous wall adaptor - Google Patents

Bearing type super deep underground continuous wall adaptor Download PDF

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Publication number
CN201981532U
CN201981532U CN2011200948881U CN201120094888U CN201981532U CN 201981532 U CN201981532 U CN 201981532U CN 2011200948881 U CN2011200948881 U CN 2011200948881U CN 201120094888 U CN201120094888 U CN 201120094888U CN 201981532 U CN201981532 U CN 201981532U
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CN
China
Prior art keywords
adaptor
underground continuous
joint
construction
deep underground
Prior art date
Application number
CN2011200948881U
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Chinese (zh)
Inventor
董宝贵
杨俊明
汪龙兵
周世宏
黄亚飞
贾金刚
杨尚东
范伟
梅振宇
刘小东
冯小军
张月清
Original Assignee
中铁十二局集团建筑安装工程有限公司
中铁十二局集团有限公司
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Priority to CN2011200948881U priority Critical patent/CN201981532U/en
Application granted granted Critical
Publication of CN201981532U publication Critical patent/CN201981532U/en

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Abstract

The utility model relates to the field of foundations, in particular to a bearing type super deep underground continuous wall adaptor, which resolves the problems that the construction of the existing underground continuous wall utilizes a joist steel as an adaptor, concretes flow around, the joist steel shifts and the like. The bearing type super deep underground continuous wall adaptor comprises joist steel type adaptors respectively welded to two ends of a reinforcing cage of a fore construction groove segment and adaptor boxes which are spliced segment by segment at the opening of the groove into a design length and are arranged vertically. The adaptor boxes are arranged between the joist steel adaptor and a rear construction groove segment. The adaptor type is formed by combining the joist steel adaptor and the adaptor boxes, thereby being capable of avoiding the quality shortcoming of the adaptor and the shift of the joist steel caused by the fact that the concretes flow around. Compared with the traditional processing technology, the bearing type super deep underground continuous wall adaptor is more economical and more reasonable, can be repeatedly used many times and ensures the construction quality of the super deep underground continuous wall adaptor, thereby meeting the requirement of the adaptor optimization type for earth retaining, anti-seepage, bearing and the like of the bearing underground continuous wall. The bearing type super deep underground continuous wall adaptor is verified by engineering applications and obtains good construction effect.

Description

The bearing type ultra-deep underground continuous wall connector
Technical field
The utility model relates to the foundation field, is specially a kind of bearing type ultra-deep underground continuous wall connector.
Background technology
Known, sealing and transmission stress are the stable principal elements of decision continuous underground wall structure, but are all decided by groove section joint form.The selection of joint categories needs to consider according to each side combined factors such as stratum, construction technology, safety, durations, is to guarantee that diaphragm wall has the prerequisite that leakproof is impervious, transmit stress but select being rigidly connected of best flowing water circuit and overlapping to greatest extent two unit groove sections.
The street corner form of diaphragm wall and of a great variety is wherein directly connected by the intersegmental materials for wall of adjacent cells wall, forms plane or curved face type seam, is referred to as to flexibly connect.Its construction technology is simple, and cost is low, and shear resistance is poor.Mainly be used in the structure of temporary lining retaining soil, water seepage prevention, in the space enclosing structure wall in impervious wall, core wall and the base pit engineering.Typical flexible joint mainly contains fore shaft pipe, preformed pile joint etc.This type of joint construction treating methods is constructed easier in more shallow grooving, and brush wall device is than heavy quarrel or mud skin in the recessed joint that is easier to remove grooving.But handle at the joint that becomes groove depth, effect is not very desirable, than being easier to infiltration.
For particular importance and specifically functional diaphragm wall, as integrate retaining soil, sealing, outer wall of underground structure, superstructure load bearing wall, or the diaphragm wall that carries out " contrary sequence method ", " semi-inverse method " construction, water seepage prevention effect preferably should be arranged, advantages of high bearing capacity is arranged again, therefore must the reinforcing cage of adjacent wall section be carried out part (or all) overlap joint with steel work in the junction, form a rigid joint, increase connecting portion rigidity and intensity, guarantee the body of wall total quality.Generally select cross steel plate or i iron joint for use.Characteristics such as the i iron joint has, and construction technology is simple, but the fast field fabrication of speed of application, structural strength and the infiltration path of good rigidity, joint are grown, thus certain stagnant water effect had, be used widely.But, in construction, there are two problems to the i iron joint: the one, how to avoid concrete to stream in the casting process, the 2nd, how to prevent that i iron is offset.Be head it off, the normal employing filled out " foam+sand bag " behind with the invasion of prevention concrete on the engineering at i iron, but the back-up sand bag is very difficult closely knit in mud-filled narrow gap, and concrete still can be walked around i iron and be seeped in its space behind; And, make that i iron traction cage body is to sand bag direction deflection after the concreting because the sand bag can't provide enough counter-forces to i iron.
Therefore, press for and propose a kind of above-mentioned two problems that can solve in the i iron construction, guarantee the ultra-deep underground continuous wall connector construction quality, thereby satisfy the joint optimization pattern that load-bearing diaphragm wall retaining soil, antiseepage, load-bearing etc. require.
Summary of the invention
The utility model provides a kind of bearing type ultra-deep underground continuous wall connector in order to solve existing construction of diaphragm wall and to adopt i iron to exist concrete to stream as joint and problems such as skew taking place i iron.
The utility model is to adopt following technical scheme to realize: the bearing type ultra-deep underground continuous wall connector, comprise respectively the I-shaped die joint that is welded as a whole with construction groove section reinforcing cage two ends earlier, innovative point of the present utility model is also to be included in notch and is spliced into design length and vertically disposed joint case piecemeal, and the joint case is between I-shaped die joint and back construction groove section.Described I-shaped die joint and joint case are existing known configurations.
Adopt structure design of the present utility model, I-shaped die joint and joint case are combined formed joint geometry, can avoid causing joint quality defective and i iron skew because of concrete streams, more more economical, more reasonable than conventional process technology, and can be repeatedly used, guarantee the ultra-deep underground continuous wall connector construction quality, thereby satisfied the joint optimization pattern that load-bearing diaphragm wall retaining soil, antiseepage, load-bearing etc. require.This joint geometry is used by engineering and is verified, and has obtained good construction effect.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Among the figure: 1-is construction groove section earlier; The 2-reinforcing cage; 3-I-shaped die joint; 4-joint case; Construction groove section behind the 5-.
The specific embodiment
The bearing type ultra-deep underground continuous wall connector, as shown in Figure 1, comprise respectively the I-shaped die joint 3 that is welded as a whole with construction groove section 1 reinforcing cage 2 two ends earlier, also be included in notch and be spliced into design length and vertically disposed joint case 4 piecemeal, joint case 4 is between I-shaped die joint 3 and back construction groove section 5, the joint case mostly is the 20mm steel plate and is welded, but merogenesis is installed.
Adopt the construction technology of this structural shape joint as follows:
(1) according to designing requirement at factory's welding processing I-shaped die joint, transport to then and on-the-spot carry out assembly unit, welding with reinforcing cage.When making reinforcing cage, I-shaped steel plate and reinforcing cage are linked to be integral body, transfer to together in the groove during following cage, need effectively reinforce the rigidity during with the assurance reinforcement cage hoisting when welding with reinforcing cage.
(2) in time transfer the joint case after reinforcing cage is transferred, the joint case is transferred to bottom land after notch is spliced into design length piecemeal, streams from joint case root pin for preventing concrete, more than joint case insertion groove subsoil body 30cm.The joint case is made precision (verticality) and should must vertically be inserted during installation in 1/1000, and deviation is not more than 50mm.
(3) put in place under the joint case after, carry out building of continuous wall concrete immediately.
(4) the joint case is pulled.Pull risk for reducing the joint case, when about pouring concrete 3h, begin to stir the joint case, promoted once every 3 hours then, its amplitude should not be greater than 50 ~ 100mm, and observes the sinking situation of joint case, and concrete pouring finishes 6~8h, after being concrete final set, the joint case is all extracted and in time cleaned and dredges;
The mode that adopts hydraulic jack to cooperate with crane of pulling of joint case is carried out.Pull device by base, the 100t plunger type jack of pallet, load crossbeam and two stroke 1.2~1.5m and supporting high-pressure oil pump etc. are formed up and down.During use a pair of power transmission fringed iris herb is penetrated in the notch, and put on crossbeam, start oil pump then, utilize jack with the lower transverse beam jacking, then the joint case is in company with pulling up.
(5) brush wall.At the rigid joint i iron that this engineering is used, make special brush wall device, make its size just in time meet the i iron dimensional requirement, guarantee that the steel brush face can effectively extend into i iron inside, thereby guarantee when cleaning with water, can effectively construct.Brush wall device adopts off-centre to hang brush, cleans effect with water to guarantee that the steel brush face closely contacts to reach with the joint face.Follow-up groove section is dug to design elevation, brushes heavy quarrel or the mud skin of cleaning with water on the width of cloth joint face of going ahead of the rest with eccentric hanging, and the number of times of brushing wall up and down should be no less than 10 times, till no mud on the hairbrush face of brush wall device, guarantees that the old and new's concrete of joint face engages closely.
Joint described in the utility model is applied in the improvement project construction of diaphragm wall of railway terminal, Suzhou.Application result is not have the concrete of streaming substantially in the I-shaped die joint, and side-play amount is very little.The diaphragm wall ultrasound examination is the result show, in 171 width of cloth diaphragm walls of detection, the integrality of all diaphragm walls is 1 class, and wall body quality is better, meets design requirement.In Excavation Process, the diaphragm wall seam crossing is not found the infiltration phenomenon substantially.

Claims (1)

1. bearing type ultra-deep underground continuous wall connector, comprise respectively the I-shaped die joint (3) that is welded as a whole with construction groove section (1) reinforcing cage (2) two ends earlier, it is characterized in that also being included in notch and be spliced into design length and vertically disposed joint case (4) piecemeal, joint case (4) is positioned between I-shaped die joint (3) and the back construction groove section (5).
CN2011200948881U 2011-04-02 2011-04-02 Bearing type super deep underground continuous wall adaptor CN201981532U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011200948881U CN201981532U (en) 2011-04-02 2011-04-02 Bearing type super deep underground continuous wall adaptor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011200948881U CN201981532U (en) 2011-04-02 2011-04-02 Bearing type super deep underground continuous wall adaptor

Publications (1)

Publication Number Publication Date
CN201981532U true CN201981532U (en) 2011-09-21

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102363955A (en) * 2011-10-31 2012-02-29 天津一建建筑工程有限公司 Prefabricated transverse H-shaped underground continuous wall joint section structure
CN102635109A (en) * 2012-04-23 2012-08-15 中铁十六局集团有限公司 Diaphram wall clapboard type joint and method for preventing streaming around in concrete pouring
CN102808415A (en) * 2012-07-25 2012-12-05 江苏华东地质建设集团有限公司 Foundation pit supporting structure of underground continuous wall and construction method for foundation pit supporting structure
CN103343533A (en) * 2013-07-02 2013-10-09 上海市基础工程集团有限公司 Inserting plate device for underground continuous wall sleeve milling construction
CN103526784A (en) * 2013-10-24 2014-01-22 江苏城市职业学院 Method for detecting and reinforcing flexible connector of ultra-deep underground continuous wall
CN103924621A (en) * 2014-03-31 2014-07-16 广西建工集团第五建筑工程有限责任公司 Concrete bypassing preventing device with pulp stopping plates and concrete bypassing preventing construction method for H-shaped steel joint of wall chase of underground continuous wall
CN106013086A (en) * 2016-06-23 2016-10-12 程华清 Construction method for processing underground continuous wall joint through boss type I-steel joint box
CN106836191A (en) * 2017-01-20 2017-06-13 中国建筑第四工程局有限公司 The construction method of subway building enclosure ground-connecting-wall under a kind of low clearance
CN108049415A (en) * 2018-02-01 2018-05-18 中纬建设工程有限公司 A kind of irregular foundation pit support structure and construction method

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102363955A (en) * 2011-10-31 2012-02-29 天津一建建筑工程有限公司 Prefabricated transverse H-shaped underground continuous wall joint section structure
CN102635109A (en) * 2012-04-23 2012-08-15 中铁十六局集团有限公司 Diaphram wall clapboard type joint and method for preventing streaming around in concrete pouring
CN102808415A (en) * 2012-07-25 2012-12-05 江苏华东地质建设集团有限公司 Foundation pit supporting structure of underground continuous wall and construction method for foundation pit supporting structure
CN102808415B (en) * 2012-07-25 2015-05-27 江苏华东地质建设集团有限公司 Foundation pit supporting structure of underground continuous wall and construction method for foundation pit supporting structure
CN103343533A (en) * 2013-07-02 2013-10-09 上海市基础工程集团有限公司 Inserting plate device for underground continuous wall sleeve milling construction
CN103526784A (en) * 2013-10-24 2014-01-22 江苏城市职业学院 Method for detecting and reinforcing flexible connector of ultra-deep underground continuous wall
CN103924621A (en) * 2014-03-31 2014-07-16 广西建工集团第五建筑工程有限责任公司 Concrete bypassing preventing device with pulp stopping plates and concrete bypassing preventing construction method for H-shaped steel joint of wall chase of underground continuous wall
CN106013086A (en) * 2016-06-23 2016-10-12 程华清 Construction method for processing underground continuous wall joint through boss type I-steel joint box
CN106836191A (en) * 2017-01-20 2017-06-13 中国建筑第四工程局有限公司 The construction method of subway building enclosure ground-connecting-wall under a kind of low clearance
CN108049415A (en) * 2018-02-01 2018-05-18 中纬建设工程有限公司 A kind of irregular foundation pit support structure and construction method

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Granted publication date: 20110921