CN110528500A - A kind of high rich water borders on the sea regional ground continuous wall connector water-stopping method - Google Patents

A kind of high rich water borders on the sea regional ground continuous wall connector water-stopping method Download PDF

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Publication number
CN110528500A
CN110528500A CN201910669480.3A CN201910669480A CN110528500A CN 110528500 A CN110528500 A CN 110528500A CN 201910669480 A CN201910669480 A CN 201910669480A CN 110528500 A CN110528500 A CN 110528500A
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China
Prior art keywords
connector
steel
width
water
slot
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CN201910669480.3A
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Inventor
张明义
白晓宇
王永洪
王海刚
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Qingdao University of Technology
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Qingdao University of Technology
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Priority to CN201910669480.3A priority Critical patent/CN110528500A/en
Publication of CN110528500A publication Critical patent/CN110528500A/en
Priority claimed from PCT/CN2020/103604 external-priority patent/WO2021013201A1/en
Pending legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00Independent underground or underwater structures; Retaining walls
    • E02D29/16Arrangement or construction of joints in foundation structures
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/18Bulkheads or similar walls made solely of concrete in situ
    • E02D5/187Bulkheads or similar walls made solely of concrete in situ the bulkheads or walls being made continuously, e.g. excavating and constructing bulkheads or walls in the same process, without joints
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2250/00Production methods
    • E02D2250/0023Cast, i.e. in situ or in a mold or other formwork

Abstract

The invention belongs to Base hole supporting technology field, it is related to a kind of high rich water and borders on the sea regional ground continuous wall connector water-stopping method, border on the sea area using I-steel as the construction of underground continuous wall connector in high rich water, waterproof effect is more satisfactory;Concrete can be effectively prevent to stream with sandbag is filled on the outside of galvanized iron sheet and I-steel;And the special wire brush brush wall of market sale is used, there is good brush wall effect, is conducive to the globality for reinforcing concrete, enhances waterproof effect;The setting of steel floral tube further ensures seam crossing water-stagnating effect.

Description

A kind of high rich water borders on the sea regional ground continuous wall connector water-stopping method
Technical field:
The invention belongs to Base hole supporting technology field, it is related to a kind of high rich water and borders on the sea regional ground continuous wall connector sealing side Method, it is especially a kind of using I-steel as the water-stopping method of connector.
Background technique:
Diaphram wall is a kind of important deep foundation pit supporting structure form, and basic process flow includes: to lead wall to apply Work, slurrying, trenching construction, fabrication of reinforcing cage, reinforcing bar cage hoisting, connector processing, underwater gliders etc., wherein underground The construction of (especially a kind of high rich water border on the sea area) at continuous wall connector) it is the technology for influencing diaphram wall water seepage prevention Problem.
Currently, construction method includes following several at common underground continuous wall connector: first is that circular joint Manifold technology: being The one or both ends of slurry postposition groove inlet section are changed at clear bottom, after concrete initial set, are pulled up with pipe extractor, its main feature is that cheap, side Method is mature, widely applicable, but extubation time difficulty is grasped, and waterproof effect is undesirable;Second is that " one " or " ten " shape steel plate connector: grooving Afterwards, groove inlet section is set with steel reinforcement cage, as disposable waterproof device, steel plate two sides insertion front and back is constructed in two width diaphragm walls, special Point uses extensively, low cost, but seam crossing concrete poor contact, easy burning into sand;Third is that " work " or " king " shaped-steel joint: grooving Afterwards, corresponding slot section is placed in as disposable waterproof device, and steel reinforcement cage is embedded in shape steel plate wing plate, its main feature is that with being adapted to rich water Layer, good integrity, waterproof effect is prominent, and deficiency is to involve great expense;Fourth is that rotary churning pile waterproof connector: after the completion of diaphragm wall pours, On the outside of seam crossing, rotary churning pile waterproof is squeezed into, feature is to be suitable for weak bottom, and waterproof effect is general, the disadvantage is that construction period It is long, it involves great expense;Fifth is that rubber water-proof belt lacing: bringing commitment positions by the junction block of speciality, extracted after next slot section fluting Junction block, it is suitable for shallower diaphragm walls, anti-to stream, but its construction is complicated, and overall stiffness is poor, such as CN200910193231.8 public affairs A kind of diaphragm wall joint flexible water stop installing and method are opened, the mounting device is by steel plate or section steel manufacture At the ratio between width and thickness close to 1 junction block structure, it is mountable that the side being in contact with concrete is equipped at least one The mounting groove of rubber fastening band, and the width of the opening of the mounting groove is more smaller than the width of vallecular cavity.Due to the width of junction block Thickness rate is close to 1.Occur slip casting type connector in recent years, such as 201810132066.4 discloses a kind of groutable diaphram wall Connector and its construction method, its main feature is that ground wall joint meet native face side equipped with two Grouting Pipes composition can slip casting underground it is continuous Wall joint, when described ground wall joint is connected using rigid joint, two Grouting Pipes are fixed in rigid joint by annulus and meet native face Side, when being connected using flexible joint, two Grouting Pipes are separately fixed at the both ends that steel reinforcement cage meets native face, and Specific construction includes: Lead the construction of wall, unit groove section and diaphram wall;But since engineering geological condition is poor, continuous wall trench underground quality is weight Difficult point, and the water-stopping method construction cost is high.
Therefore, it based on the difference of construction method and engineering geological condition at various underground continuous wall connectors, reasonably selects Structure type at underground continuous wall connector becomes particularly important.
Summary of the invention:
It is an object of the invention to overcome disadvantage of the existing technology, design provides one kind and borders on the sea regionally in high rich water Continuous wall connector water-stopping method realizes at underground continuous wall connector water seepage prevention when in construction and Bracing Process.
To achieve the goals above, the present invention is realized in border on the sea regional underground continuous wall connector antipriming of high rich water, tool Body process are as follows:
(1) pour and lead wall: using existing construction technology successively carry out levelling of the land → surveying and locating → excavation lead wall ditch and Processing roach → binding lead wall reinforcing bar, installation wall outboard template → pour walls concrete → form removal add cross-brace → The back-filling in layers earthwork in slot;
(2) slurrying: during grooving, mud plays the role of retaining wall, takes slag, cooling equipment, cuts soil lubrication, property The stabilization of cell wall when the good mud of energy can ensure that grooving, prevents the slot that collapses, while when concrete is poured to the pouring quality for guaranteeing concrete It plays an important role;Mud mix-design is carried out according to place geology, Groundwater Property and construction experience, makes to configure Mud index meet construction requirement, the process of mud configuration are as follows: after water is first added to mixing drum 1/3, start pulper, then While quantitative water tank constantly adds water, bentonite in powder is added, after stirring 10min, the additives such as CMC liquid and ground caustic is added and continue to stir Mix 10min can stop stirring being put into new stock tank, wait stand extruding for 24 hours afterwards use;
(3) I phase slot sections are excavated: will be first opened slot as test flume section, are collected all kinds of parameters and data of trenching construction etc., try Ground-connecting-wall routine grooving after grooving according to design drawing and leads wall and determines that I phase slot section excavates position, and chute forming machine carries out excavation work Industry;Mud off is used when grooving, is carried out an acceptance inspection according to related specifications to slot after grooving, is tiltedly shoveled after the completion of slot section with brush wall device The hard object not fallen off is rooted out, cell wall cleaning is carried out;The process is to control verticality, the mud parameter of formal trenching construction process, The continuity for guaranteeing engineering construction, achievees the purpose that guiding construction;
(4) fabrication of reinforcing cage: by the first wall width steel reinforcement cage using the prior art by construction requirement make after with it is I-shaped Steel plate welding, while installing galvanized iron sheet and press strip reinforcing bar;
(5) grooving quality and mud index are examined after the clear trough end of step (3), connector case is hung after qualified, by first Width steel reinforcement cage transfers to commitment positions, fills sandbag on the outside of I-shaped plate joint, prevents concrete from outflowing;To reduce underground Continuous wall Vertical Settlement and corresponding ground settlement carry out slip casting with preset steel floral tube in i shaped steel plate connector and add Gu being risen after the completion of pouring then by the pre-buried first width diaphram wall of Grouting Pipe underwater casting and pulling out connector case;
(6) after the completion of II phase of adjacent slot section, the hard object not fallen off first tiltedly is rooted out with brush wall device, then with brush wall device wire brush I phase groove end I-shaped steel plate of segmentation scrub from top to bottom, is brushed several times up and down, until without spare on brush, bottom hole is deposited no longer Increase, keeps New-old concrete joint completely closely knit after brush wall;
(7) connector case is hung, by the second wall width reinforcing bar cage hoisting build-in in I-shaped steel plate wing plate, passes through Grouting Pipe water Lower casting concrete rises after the completion of pouring and pulls out connector case;
(8) remaining wall width is successively poured according to above-mentioned steps, until last width diaphragm wall pours completion.
The border on the sea main structure of regional underground continuous wall connector antipriming of high rich water of the present invention includes i shaped steel Plate, diaphragm wall horizontal bar, the vertical main reinforcement of diaphragm wall, u u stirrup, galvanized iron sheet, press strip reinforcing bar, steel floral tube, Grouting Pipe, the first wall Width steel reinforcement cage, the second wall width steel reinforcement cage and sandbag;Diaphragm wall horizontal bar and the vertical main reinforcement mechanical connection of diaphragm wall, steel floral tube binding It is overlapped on the first wall width steel reinforcement cage;Galvanized iron sheet is mounted on the outside of I-shaped steel plate, galvanized iron sheet and press strip reinforcing bar spot welding Welding, I-steel and the first wall width steel reinforcement cage are welded to connect, fusion length 100mm;U u stirrup and diaphragm wall horizontal bar single side It is welded to connect, Grouting Pipe and the second wall width steel reinforcement cage binding overlap joint, the second wall width steel reinforcement cage is in lifting build-in in I-shaped steel plate In wing plate;Sandbag piles up I-shaped plate joint web outside, and lower raising degree is diaphram wall height.
I-shaped steel plate of the present invention is welded by H profile steel plate, and the width on the edge of a wing is 400mm, the thickness on the edge of a wing For 10mm, the height of web is 160mm, web with a thickness of 10mm.
The vertical main reinforcement of diaphragm wall horizontal bar and diaphragm wall of the present invention selects model and size according to requirement of engineering.
The model and spacing of u u stirrup of the present invention are identical as diaphragm wall horizontal bar, and the transfer angle of u u stirrup is 45 °, the second wall width steel reinforcement cage better build-in in lifting is made to be convenient for construction in I-steel wing plate.
The thickness of galvanized iron sheet of the present invention is 0.3mm, width 500mm, when being strutted outward when slot section concrete pours, Galvanized iron sheet prevents concrete from flowing into the slot section of adjacent non-grooving.
The model and size of press strip reinforcing bar of the present invention use C20, apart from i shaped steel edges of boards edge 100mm at plate Zinc-iron skin spot-welded.
The diameter of steel floral tube of the present invention be A50, wall thickness 3mm, it is highly suitable with the height of diaphram wall, two Root steel floral tube at the horizontal 100mm of I-shaped steel plate 1 with the first wall width steel reinforcement cage binding connect, the effect of steel floral tube be Grouting reinforcing is carried out before excavation of foundation pit after water sealing structure forming, it is ensured that seam crossing water-stagnating effect, the size and steel floral tube of Grouting Pipe It is identical.
Compared with prior art, the present invention bordering on the sea area in high rich water, using I-steel as the construction of underground continuous wall connector Method is relatively applicable in, and waterproof effect is more satisfactory;Concrete can be effectively prevent with sandbag is filled on the outside of galvanized iron sheet and I-steel It streams;And the special wire brush brush wall of market sale is used, there is good brush wall effect, is conducive to reinforce the whole of concrete Body enhances waterproof effect;The setting of steel floral tube further ensures seam crossing water-stagnating effect.
Detailed description of the invention:
Fig. 1 be high rich water of the present invention border on the sea regional underground continuous wall connector antipriming main structure principle signal Figure.
Fig. 2 be high rich water of the present invention border on the sea regional underground continuous wall connector antipriming main structure three-dimensional it is vertical Body figure
Fig. 3 is I-shaped steel plate structure schematic diagram of the present invention.
Fig. 4 is steel floral tube structural schematic diagram of the present invention.
Specific embodiment:
The invention will be further described by way of example and in conjunction with the accompanying drawings.
Embodiment:
The present embodiment borders on the sea regional underground continuous wall connector antipriming to certain subway station diaphram wall using high rich water Construction, Specific construction process are as follows:
(1) it pours and leads wall: after the completion of surveying setting-out, starting construction and lead wall, the construction quality for leading wall is directly related to underground The construction quality of diaphragm wall, construction of guide wall must require to carry out in strict accordance with codes and standards, it is necessary to which strict control construction quality is led Wall section uses inverted "L" shape cast-in-situ steel reinforced concrete, and uniformly distributed 200 framework of steel reinforcement of HRB400C12@leads wall and uses C30 concrete, Lead before wall excavates must first hand excavation's exploratory trench, when excavator operation must have the construction of special messenger's stand-by supervision, and then wall is led in binding Reinforcing bar and shuttering pour C30 concrete, and form removal adds cross-brace, the back-filling in layers earthwork in most pit;
(2) slurrying: during grooving, mud plays the role of retaining wall, takes slag, cooling equipment, cuts soil lubrication, property The stabilization of cell wall when the good mud of energy can ensure that grooving, prevents the slot that collapses, while when concrete is poured to the pouring quality for guaranteeing concrete It plays an important role;Mud match ratio is carried out according to place geology, Groundwater Property and Qingdao City area construction experience Design, so that the mud index of configuration is met construction requirement, (mud balance is controlled in 1.1g/cm3~1.25g/cm3Left and right, viscosity 25 Between~30s), mud configuration method are as follows: after water is first added to mixing drum 1/3, start pulper, then constantly add in quantitative water tank While water, bentonite in powder is added, after stirring 10min, the addition additives such as CMC liquid and ground caustic, which continue stirring 10min, to stop Only stirring be put into new stock tank, wait stand extruding for 24 hours afterwards use;
(3) I phase slot sections are excavated: for verticality, the mud parameter for controlling formal trenching construction process, guaranteeing engineering construction Continuity achievees the purpose that guiding construction, will first open slot as test flume section, collects all kinds of parameters and data of trenching construction Deng trying ground-connecting-wall routine grooving after grooving, according to design drawing and lead wall and determine that I phase slot section excavates position, use in the present embodiment The 480 type hydraulic grab bucket grooving machine grooving of Xu work uses mud off when grooving, is tested according to related specifications slot after grooving It receives, tiltedly roots out the hard object not fallen off with brush wall device after the completion of slot section, brush wall device uses special brush wall device, and brush wall device is 3 meters high, weight 4 tons, side is oblique steel shovel, and the objects such as stronger abrasive band, concrete are adhered on steel plate for rooting out;The other side is wire brush, is used To brush the soil adhered on steel plate, the last groover progress clear bottom of cell wall;
(4) fabrication of reinforcing cage: first reinforcing bar derusting before production makes steel reinforcement cage using mould method moulding process, and when welding is tight Lattice control welding quality, weld after the first wall width steel reinforcement cage 9 is made using the prior art by construction requirement with I-shaped steel plate 1 Connect, while installing in I-shaped steel joint that 0.3mm is thick, lap guard galvanized iron sheet 5 of 500mm wide on the outside of I-steel, galvanized iron sheet 5 with 1 lap width of I-steel is not less than 100mm, is fixedly welded using a press strip reinforcing bar 6;
(5) grooving quality and mud index are examined after the clear trough end of step (3), connector case is hung after qualified, by first Width steel reinforcement cage 9 carries out integral hoisting using double-machine lifting crane, is decided and is hung using a 130t crawler crane, and a 55t crawler crane is made secondary Hang, steel reinforcement cage suspension centre setting based on hang 4 points, pair hang at 6 points and transfer to commitment positions, fill sand on the outside of I-shaped 1 connector of steel plate Bag 11, prevents concrete from outflowing;To reduce underground continuous wall Vertical Settlement and corresponding ground settlement, in I-shaped steel plate 1 Joint carries out grouting and reinforcing with preset steel floral tube 7, then continuous by the pre-buried first width underground of 8 underwater casting of Grouting Pipe Wall rises after the completion of pouring and pulls out connector case;
(6) after the completion of II phase of adjacent slot section, the hard object such as abrasive band not fallen off tiltedly first is rooted out with brush wall device, then with brush wall device Wire brush is segmented I phase groove end I-shaped steel plate of scrub from top to bottom, brushes up and down several times, until without spare on brush, bottom hole is become silted up Product is not further added by, and makes New-old concrete joint completely closely knit after brush wall;
(7) connector case is hung, by the second wall width steel reinforcement cage 10 lifting build-in in I-shaped 1 wing plate of steel plate, passes through slip casting 8 concrete placed under water of pipe rises after the completion of pouring and pulls out connector case;
(8) remaining wall width is successively poured according to above-mentioned steps, until last width diaphragm wall pours completion.
The border on the sea main structure of regional underground continuous wall connector antipriming of high rich water described in the present embodiment includes I-shaped The vertical main reinforcement 3 of steel plate 1, diaphragm wall horizontal bar 2, diaphragm wall, u u stirrup 4, galvanized iron sheet 5, press strip reinforcing bar 6, steel floral tube 7, slip casting Pipe 8, the first wall width steel reinforcement cage 9, the second wall width steel reinforcement cage 10 and sandbag 11;Diaphragm wall horizontal bar 2 and vertical 3 machine of main reinforcement of diaphragm wall Tool connection, the binding of steel floral tube 7 are overlapped on the first wall width steel reinforcement cage 9;Galvanized iron sheet 5 is mounted on the outside of I-shaped steel plate 1, plating 6 spot-welded of zinc-iron skin 5 and press strip reinforcing bar, I-steel 1 and the first wall width steel reinforcement cage 9 are welded to connect, fusion length 100mm;u U stirrup 4 is connected with 2 single-sided welding of diaphragm wall horizontal bar, Grouting Pipe 8 and the second wall width steel reinforcement cage 10 binding overlap joint, the second wall width Steel reinforcement cage 10 is in lifting build-in in I-shaped 1 wing plate of steel plate;Sandbag 11 piles up I-shaped 1 connector web outside of steel plate, under fill out Height is diaphram wall height.
I-shaped steel plate 1 described in the present embodiment is welded by H profile steel plate, and the width on the edge of a wing is 400mm, the thickness on the edge of a wing Degree is 10mm, and the height of web is 160mm, web with a thickness of 10mm.
The vertical main reinforcement 3 of diaphragm wall horizontal bar 2 and diaphragm wall described in the present embodiment selects model and size according to requirement of engineering.
The model and spacing of u u stirrup 4 described in the present embodiment are identical as diaphragm wall horizontal bar 2, and u tie muscle 4 bends up angle Degree is 45 °, and the second wall width steel reinforcement cage 10 better build-in in lifting is made to be convenient for construction in 1 wing plate of I-steel.
The thickness of galvanized iron sheet 5 described in the present embodiment is 0.3mm, width 500mm, when supportting outward when slot section concrete pours It opens, galvanized iron sheet 5 prevents concrete from flowing into the slot section of adjacent non-grooving.
The model and size of press strip reinforcing bar 6 described in the present embodiment use C20, at I-shaped 1 edge 100mm of steel plate With 5 spot-welded of galvanized iron sheet.
The diameter of steel floral tube 7 described in the present embodiment be A50, wall thickness 3mm, highly with the height phase of diaphram wall When two steel floral tubes 7 are connecting at the horizontal 100mm of I-shaped steel plate 1 with the binding of the first wall width steel reinforcement cage 9, steel floral tube 7 Effect is to carry out grouting reinforcing before excavation of foundation pit after water sealing structure forming, it is ensured that seam crossing water-stagnating effect, the size of Grouting Pipe 8 It is identical as steel floral tube 7.

Claims (8)

  1. The regional ground continuous wall connector water-stopping method 1. a kind of high rich water borders on the sea, it is characterised in that bordered on the sea regional underground using high rich water The realization of continuous wall connector antipriming, detailed process are as follows:
    (1) it pours and leads wall: levelling of the land → surveying and locating → excavation successively being carried out using existing construction technology and leads wall ditch and processing Roach → wall reinforcing bar, installation wall outboard template are led in binding → pours walls concrete → form removal and adds in cross-brace → slot The back-filling in layers earthwork;
    (2) slurrying: mud mix-design is carried out according to place geology, Groundwater Property and construction experience, makes configuration Mud index meets construction requirement, the process of mud configuration are as follows: after water is first added to mixing drum 1/3, starts pulper, then fixed While water-masuring box constantly adds water, bentonite in powder is added, after stirring 10min, CMC liquid is added and ground caustic continues to stir 10min i.e. Can stop stirring being put into new stock tank, wait stand extruding for 24 hours afterwards use;
    (3) I phase slot sections are excavated: will be first opened slot as test flume section, collected all kinds of parameters and data of trenching construction etc., try grooving Ground-connecting-wall routine grooving afterwards according to design drawing and leads wall and determines that I phase slot section excavates position, and chute forming machine carries out excavation operation;At Mud off is used when slot, is carried out an acceptance inspection according to related specifications to slot after grooving, is tiltedly rooted out after the completion of slot section with brush wall device The hard object not fallen off carries out cell wall cleaning;
    (4) the first wall width steel reinforcement cage fabrication of reinforcing cage: is made into rear and I-shaped steel plate by construction requirement using the prior art Welding, while installing galvanized iron sheet and press strip reinforcing bar;
    (5) grooving quality and mud index are examined after the clear trough end of step (3), connector case is hung after qualified, by the first width steel Muscle cage transfers to commitment positions, fills sandbag on the outside of I-shaped plate joint, prevents concrete from outflowing;It is continuous to reduce underground Wall wall Vertical Settlement and corresponding ground settlement carry out grouting and reinforcing with preset steel floral tube in i shaped steel plate connector, so Afterwards by the pre-buried first width diaphram wall of Grouting Pipe underwater casting, is risen after the completion of pouring and pull out connector case;
    (6) after the completion of II phase of adjacent slot section, the hard object not fallen off first tiltedly is rooted out with brush wall device, then with brush wall device wire brush from upper And I phase groove end I-shaped steel plate is scrubbed in lower segmentation, brush several times, is not further added by up to, without spare, bottom hole is deposited on brush up and down, Make New-old concrete joint completely closely knit after brush wall;
    (7) connector case is hung, by the second wall width reinforcing bar cage hoisting build-in in I-shaped steel plate wing plate, is poured under water by Grouting Pipe Concrete is built, is risen after the completion of pouring and pulls out connector case;
    (8) remaining wall width is successively poured according to above-mentioned steps, until last width diaphragm wall pours completion.
  2. 2. high rich water borders on the sea regional ground continuous wall connector water-stopping method according to claim 1, it is characterised in that the high rich water is faced The main structure of Haiti area underground continuous wall connector antipriming includes that I-shaped steel plate, diaphragm wall horizontal bar, diaphragm wall are vertical Main reinforcement, u u stirrup, galvanized iron sheet, press strip reinforcing bar, steel floral tube, Grouting Pipe, the first wall width steel reinforcement cage, the second wall width steel reinforcement cage and Sandbag;Diaphragm wall horizontal bar and the vertical main reinforcement mechanical connection of diaphragm wall, steel floral tube binding are overlapped on the first wall width steel reinforcement cage;Plating Zinc-iron pico-ampere is mounted in the outside of I-shaped steel plate, galvanized iron sheet and press strip reinforcing bar spot-welded, I-steel and the first wall width reinforcing bar Cage is welded to connect, fusion length 100mm;U u stirrup is connected with diaphragm wall horizontal bar single-sided welding, Grouting Pipe and the second wall width Steel reinforcement cage binding overlap joint, the second wall width steel reinforcement cage is in lifting build-in in I-shaped steel plate wing plate;Sandbag piles up I-shaped steel plate Connector web outside, lower raising degree are diaphram wall height.
  3. 3. high rich water borders on the sea regional ground continuous wall connector antipriming according to claim 2, it is characterised in that the I-shaped Shape steel plate is welded by H profile steel plate, and the width on the edge of a wing is 400mm, the edge of a wing with a thickness of 10mm, the height of web is 160mm, web with a thickness of 10mm.
  4. 4. high rich water borders on the sea regional ground continuous wall connector antipriming according to claim 2, it is characterised in that described continuous Wall horizontal bar and the vertical main reinforcement of diaphragm wall are according to requirement of engineering selection model and size.
  5. 5. high rich water borders on the sea regional ground continuous wall connector antipriming according to claim 2, it is characterised in that the u shape hoop The model and spacing of muscle are identical as diaphragm wall horizontal bar, and the transfer angle of u u stirrup is 45 °, are hanging the second wall width steel reinforcement cage Better build-in is convenient for construction in I-steel wing plate when dress.
  6. 6. high rich water borders on the sea regional ground continuous wall connector antipriming according to claim 2, it is characterised in that described zinc-plated The thickness of iron sheet is 0.3mm, width 500mm, and when strutting outward when slot section concrete pours, galvanized iron sheet prevents concrete from flowing into The slot section of adjacent non-grooving.
  7. 7. high rich water borders on the sea regional ground continuous wall connector antipriming according to claim 2, it is characterised in that the press strip The model and size of reinforcing bar use C20, apart from i shaped steel edges of boards edge 100mm at and galvanized iron sheet spot-welded.
  8. 8. high rich water borders on the sea regional ground continuous wall connector antipriming according to claim 2, it is characterised in that the spray of molten steel The diameter of pipe is A50, wall thickness 3mm, and highly suitable with the height of diaphram wall, two steel floral tubes are apart from i shaped steel It is connected at the horizontal 100mm of plate 1 with the binding of the first wall width steel reinforcement cage, the effect of steel floral tube is the excavation of foundation pit after water sealing structure forming Preceding carry out grouting reinforcing, it is ensured that the size of seam crossing water-stagnating effect, Grouting Pipe is identical as steel floral tube.
CN201910669480.3A 2019-07-24 2019-07-24 A kind of high rich water borders on the sea regional ground continuous wall connector water-stopping method Pending CN110528500A (en)

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CN201910669480.3A CN110528500A (en) 2019-07-24 2019-07-24 A kind of high rich water borders on the sea regional ground continuous wall connector water-stopping method
PCT/CN2020/103604 WO2021013201A1 (en) 2019-07-24 2020-07-22 Water stopping device and method for ground continuous wall joint in high-water-rich coastal area

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
CN111827262A (en) * 2020-07-31 2020-10-27 广西建工集团建筑工程总承包有限公司 Construction method of fold-line-shaped irregular underground continuous wall
WO2021013201A1 (en) * 2019-07-24 2021-01-28 青岛理工大学 Water stopping device and method for ground continuous wall joint in high-water-rich coastal area

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