CN104846841B - Anti-floating construction method for basements without uplift piles - Google Patents

Anti-floating construction method for basements without uplift piles Download PDF

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CN104846841B
CN104846841B CN201510271245.2A CN201510271245A CN104846841B CN 104846841 B CN104846841 B CN 104846841B CN 201510271245 A CN201510271245 A CN 201510271245A CN 104846841 B CN104846841 B CN 104846841B
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ground
water
layer
storehouse
sleeve pipe
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CN104846841A (en
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黄兵
张标
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Jiangsu Nantong three construction group Limited by Share Ltd
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Jiangsu Nantong No3 Construction Group Co Ltd
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Abstract

The invention discloses an anti-floating construction method for basements without uplift piles. The anti-floating construction method includes steps of excavating foundation pits; embedding sleeves; constructing waterproof protective layers; pouring bottom plates of the basements; determining the positions of drainage ditches; pouring integral pouring layers; carrying out waterproof treatment on the drainage ditches; carrying out backfill reinforcement; carrying out blocking and the like. The anti-floating construction method has the advantages that the sleeves are embedded in the bottom plates of the excavated basements without the uplift piles, the drainage ditches are arranged on longitudinal and transverse axes, and accordingly water which seeps from the sleeves in construction periods during rainy seasons can be timely drained; backfill reinforcement is carried out, the ground drainage ditches are arranged, accordingly, ground open water can be stopped from flowing into the basements, buoyancy which is applied to the basements by underground water can be reduced in internal water drainage and external water stopping combination modes, the uplift piles can be omitted, the construction cost and the construction difficulty can be greatly lowered, and the safety of construction procedures can be improved.

Description

A kind of storehouse, ground anti-floating construction method without uplift pile
Technical field
The invention belongs to the float Structure construction of building field, be specifically related to a kind of ground storehouse float Structure and construction method thereof.
Background technology
Traditional pure ground Cush work, typically squeezes into uplift pile, earth excavation after uplift pile reaches some strength in ground, carries out sole plate and structure construction, after structure reaches design strength, carries out backfilling of earthwork.Level of ground water is less than to the storehouse, ground of sole plate, the most do not design uplift pile, affected by the Pluvial, in storehouse, ground construction period, surrounding is after rain penetration, and level of ground water is apparently higher than sole plate, owing to lacking uplift pile, under the effect of buoyancy force of underground water, easily there is rising phenomenon in storehouse, ground, has a strong impact on the construction quality in storehouse, ground.Again injection uplift pile, cost puts into relatively big, and project progress is had large effect.
Summary of the invention
The technical problem to be solved is to provide a kind of storehouse, ground anti-floating construction method without uplift pile, and this construction method also can be effectively reduced the buoyancy in lower water storehouse over the ground in the case of being not provided with uplift pile, improves construction safety.
For solving above-mentioned technical problem, the technical solution used in the present invention is:
A kind of storehouse, ground anti-floating construction method without uplift pile, comprises the following steps:
(1) excavation of foundation pit: after excavation of foundation pit to designed elevation, bottom is watered and is smash blinding layer;
(2) service sleeve: sleeve pipe is arranged along axle in length and breadth, and spacing is 3300-3900mm, sleeve pipe upper surface exceeds ground house bottom plate, and lower surface penetrates blinding layer;
(3) fish tail and waterproof layer construction: waterproof roll is pasted in the position avoiding sleeve pipe at blinding layer upper surface; then circle is handed over water-swelling rubber water bar along sleeve outer wall; waterproof roll is close in the bottom of rubber water-proof bar; one layer of pea gravel concreten is poured again on waterproof roll; form fish tail and waterproof layer; after fish tail and waterproof layer intensity reaches requirement, waiting that pouring the position in the middle part of ground house bottom plate encloses steel plate water stopper along sleeve outer wall welding one;
(4) pour ground house bottom plate: colligation ground house bottom plate reinforcing bar, and use fixing muscle to be fixed on the muscle up and down of ground house bottom plate reinforcing bar with " well " sub-shape sleeve outer wall, pour underplate concrete, vibrate layering, spacing, tight inserting is pulled out slowly, with smashing with troweling, and after initial set, before final set, carry out second time receipts face;
(5) determine position, gutter: after sleeve pipe surrounding water-proofing treatment maintenance completes, the gutter that width is 200-220mm is set along Axis Cross in length and breadth, snap the line formwork on ground house bottom plate;
(6) pour whole casting layer: colligation single-layer bidirectional bar-mat reinforcement on ground house bottom plate, pour whole casting layer concrete, the upper surface of whole casting layer and the gutter mould upper surface flush propped up, strike off with long floating rule when reaching designed elevation, with wooden float polishing compacting before initial set;
(7) gutter water-proofing treatment: after whole casting layer intensity reaches requirement, removes the gutter mould that prop up, and Polymer cement materials is smeared in the position that the sidewall in gutter and bottom are avoided sleeve pipe, and the upper surface of bottom polymeric cement waterproofing mortar is less than sleeve pipe;
(8) backfill is strengthened: storehouse exterior wall and top board assembling reinforcement over the ground, casting concrete, and after intensity reaches requirement, the region plain concrete at ground house bottom plate 1m outward pours, and district is strengthened in basis of formation backfill;Use sixteen dirt back-fillings in layers between ground storehouse exterior wall and excavation slope, form ash soil layer;At foundation ditch top surrounding excavation, formwork, pour, with plain concrete, the land drain that width is 400-450mm, harden with plain concrete between ash soil layer top, land drain and storehouse, ground top board, form organized weathering;
(9) closure: the water in sleeve pipe fills slightly expanded concrete after draining, reaches to weld steel plate for sealing water at cannula tip after requirement of strength, finally by sidewall and the bottom dabbing in gutter, clear up, connect oar, block with pea gravel concreten.
Above-mentioned sleeve pipe is thick 5mm, the steel thimble of internal diameter 100mm.
The side of above-mentioned ash soil layer top and weathering closely storehouse exterior wall is above its opposite side.
The thickness of above-mentioned steel plate water stopper is 3mm, and width is 50mm.
Compared with prior art, the invention have the advantage that the present invention storehouse, ground not setting uplift pile to having excavated, on the one hand, ground house bottom plate service sleeve and in length and breadth axle arrange gutter, the water that construction period in Pluvial oozes out from sleeve pipe is discharged in time;On the other hand, use backfill to strengthen and arrange land drain, stoping ground open fire to enter in storehouse, ground, by internal drainage, block water and reduce the buoyancy in Groundwater storehouse by the way of combination outward, without arranging uplift pile, greatly reduce cost and the difficulty of construction, improve the safety of work progress.
Accompanying drawing explanation
With detailed description of the invention, the present invention is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of the present invention;
The structure for amplifying schematic diagram in Tu2Shi Tu1Zhong A district;
Fig. 3 is the structural representation after the present invention blocks.
Detailed description of the invention:
As shown in Figure 1 to Figure 3, a kind of storehouse, ground anti-floating construction method without uplift pile, comprise the following steps:
(1) excavation of foundation pit: after excavation of foundation pit to designed elevation, bottom is watered and is smash blinding layer 1;
(2) service sleeve 4: sleeve pipe 4 selects thick 5mm, the steel thimble of internal diameter 100mm, sleeve pipe 4 is arranged along axle in length and breadth, and spacing is 3500mm, and sleeve pipe 4 upper surface exceeds ground storehouse 2 base plate 30mm, and lower surface penetrates blinding layer less than 1 50mm;
(3) fish tail and waterproof layer 5 is constructed: waterproof roll 3 is pasted in the position avoiding sleeve pipe 4 at blinding layer 1 upper surface; then circle is handed over the water-swelling rubber water bar 41 of 30*40 along sleeve pipe 4 outer wall; waterproof roll 3 is close in the bottom of rubber water-proof bar 41; the thick pea gravel concreten of one layer of 40mm is poured again on waterproof roll 3; form fish tail and waterproof layer 5; after fish tail and waterproof layer 5 intensity reaches requirement, wait to pour the position in the middle part of the base plate of storehouse 2, ground along sleeve pipe 4 outer wall welding one circle thickness be 3mm, width be the steel plate water stopper 6 of 50mm;
(4) ground storehouse 2 base plate is poured: storehouse 2, colligation ground baseplate reinforcing bar, and sleeve pipe 4 outer wall uses the 12 of four root lengths 1300mm fix muscle 42 be fixed on the muscle up and down 21 of ground storehouse 2 baseplate reinforcing bar with " well " sub-shape, pour underplate concrete, vibrate layering, spacing, tight inserting is pulled out slowly, with smashing with troweling, and after initial set, before final set, carry out second time receipts face, thus avoid dehydration cracking, carrying out curing at moisture-retention and heat-insulation after having poured, curing time is no less than 14 days;
(5) determine position, gutter 7: after sleeve pipe 4 surrounding water-proofing treatment maintenance completes, the gutter 7 that width is 200mm, snap the line formwork on the base plate of storehouse, ground 2 are set along Axis Cross in length and breadth;
(6) whole casting layer 8 is poured: colligation single-layer bidirectional bar-mat reinforcement 8@150 on the base plate of storehouse, ground 2, whole casting layer 8 is become with the C25 concreting that seepage-resistant grade is P6, the upper surface of whole casting layer 8 and the gutter 7 mould upper surface flush propped up, strike off with long floating rule when reaching designed elevation, with wooden float polishing compacting before initial set, receive water crack seam with Guan Bi;
(7) gutter 7 water-proofing treatment: after whole casting layer Final 8 degree reaches requirement, removes the gutter mould that prop up, and the Polymer cement materials 71 of 15mm thickness is smeared in the position that the sidewall in gutter 7 and bottom are avoided sleeve pipe 4;
(8) backfill is strengthened: storehouse 2 exterior wall and top board assembling reinforcement over the ground, casting concrete, and after intensity reaches requirement, the region C10 plain concrete at storehouse, ground 2 base plate 1m outward pours, and district 11 is strengthened in basis of formation backfill;Using sixteen dirt back-fillings in layers between ground storehouse 2 exterior wall and foundation ditch 9 side slope, form ash soil layer 10, layering machinery compacting compacting factor is not less than 0.94;At foundation ditch 9 top surrounding excavation, formwork, the land drain 13 that width is 400mm is poured with C10 plain concrete, concentrate water-retention, ground open fire is stoped to enter in storehouse 2, ground and foundation ditch 9, harden with C10 plain concrete between ash soil layer 10 top, land drain 13 and storehouse 2, ground top board, forming organized weathering 12, the side of ash soil layer 10 top and weathering 12 closely storehouse 2 exterior wall is higher than its opposite side;
(9) closure: the water in sleeve pipe 4 fills slightly expanded concrete after draining, reaches steel plate for sealing water 43 thick at cannula tip welding 5mm after requirement of strength, finally by sidewall and the bottom dabbing in gutter 7, clear up, connect oar, block with C30P6 pea gravel concreten.
The present invention is applicable to excavate, do not set the storehouse, ground 2 of uplift pile and constructs, use service sleeve 4 on the xoncrete structure base plate of storehouse, ground 2, utilize whole casting layer 8 that crisscross gutter 7 is set along sleeve pipe 4 and base plate surrounding, in construction period in Pluvial, ooze out through sleeve pipe 4 during level of ground water storehouse 2 base plate above Ground, and collect catch pit by gutter 7;Using basis backfill to strengthen district 11, ash soil layer 10, weathering 12 and land drain 13 outside storehouse 2, ground stops ground open fire to enter foundation ditch 9 and storehouse 2, ground.By internal drainage, blocking water and reduce the buoyancy in Groundwater storehouse by the way of combination outward, so that without arranging uplift pile in the work progress of storehouse 2, ground, greatly reduce cost and the difficulty of construction, work progress risk factor is few, and construction safety obtains Reliable guarantee.
The present invention does not limit to above-mentioned preferred forms, and anyone can draw other various forms of products under the enlightenment of the present invention.All impartial changes done according to scope of the present invention patent and modification, all should belong to the covering scope of the present invention.

Claims (4)

1. storehouse, the ground anti-floating construction method without uplift pile, it is characterised in that comprise the following steps:
(1) excavation of foundation pit: after excavation of foundation pit to designed elevation, bottom is watered and is smash blinding layer;
(2) service sleeve: sleeve pipe is arranged along axle in length and breadth, and spacing is 3300-3900mm, sleeve pipe upper surface exceeds ground house bottom plate, and lower surface penetrates blinding layer;
(3) fish tail and waterproof layer construction: waterproof roll is pasted in the position avoiding sleeve pipe at blinding layer upper surface; then circle is handed over water-swelling rubber water bar along sleeve outer wall; waterproof roll is close in the bottom of rubber water-proof bar; one layer of pea gravel concreten is poured again on waterproof roll; form fish tail and waterproof layer; after fish tail and waterproof layer intensity reaches requirement, waiting that pouring the position in the middle part of ground house bottom plate encloses steel plate water stopper along sleeve outer wall welding one;
(4) pour ground house bottom plate: colligation ground house bottom plate reinforcing bar, and use fixing muscle to be fixed on the muscle up and down of ground house bottom plate reinforcing bar with " well " font sleeve outer wall, pour underplate concrete, vibrate layering, spacing, tight inserting is pulled out slowly, with smashing with troweling, and after initial set, before final set, carry out second time receipts face;
(5) determine position, gutter: after sleeve pipe surrounding water-proofing treatment maintenance completes, the gutter that width is 200-220mm is set along Axis Cross in length and breadth, snap the line formwork on ground house bottom plate;
(6) pour whole casting layer: colligation single-layer bidirectional bar-mat reinforcement on ground house bottom plate, pour whole casting layer concrete, the upper surface of whole casting layer and the gutter mould upper surface flush propped up, strike off with long floating rule when reaching designed elevation, with wooden float polishing compacting before initial set;
(7) gutter water-proofing treatment: after whole casting layer intensity reaches requirement, removes the gutter mould that prop up, and Polymer cement materials is smeared in the position that the sidewall in gutter and bottom are avoided sleeve pipe, and the upper surface of bottom polymeric cement waterproofing mortar is less than sleeve pipe;
(8) backfill is strengthened: storehouse exterior wall and top board assembling reinforcement over the ground, casting concrete, and after intensity reaches requirement, the region plain concrete at ground house bottom plate 1m outward pours, and district is strengthened in basis of formation backfill;Use sixteen dirt back-fillings in layers between ground storehouse exterior wall and excavation slope, form ash soil layer;At foundation ditch top surrounding excavation, formwork, pour, with plain concrete, the land drain that width is 400-450mm, harden with plain concrete between ash soil layer top, land drain and storehouse, ground top board, form organized weathering;
(9) closure: the water in sleeve pipe fills slightly expanded concrete after draining, reaches to weld steel plate for sealing water at cannula tip after requirement of strength, finally by sidewall and the bottom dabbing in gutter, clear up, connect slurry, block with pea gravel concreten.
A kind of storehouse, ground anti-floating construction method without uplift pile the most according to claim 1, it is characterised in that: described sleeve pipe is thick 5mm, the steel thimble of internal diameter 100mm.
A kind of storehouse, ground anti-floating construction method without uplift pile the most according to claim 1, it is characterised in that: the side of described ash soil layer top and weathering closely storehouse exterior wall is above its opposite side.
A kind of storehouse, ground anti-floating construction method without uplift pile the most according to claim 1, it is characterised in that: the thickness of described steel plate water stopper is 3mm, and width is 50mm.
CN201510271245.2A 2015-05-26 2015-05-26 Anti-floating construction method for basements without uplift piles Active CN104846841B (en)

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CN105155592A (en) * 2015-10-14 2015-12-16 中建八局第三建设有限公司 Base plate pressure reducing device
CN105421499B (en) * 2015-11-24 2018-01-19 中国一冶集团有限公司 A kind of ground storehouse anti-floating construction method
CN107165265A (en) * 2017-07-07 2017-09-15 中国十七冶集团有限公司 A kind of moistureproof integrated system of ultra-deep basement anti-floating water proof
CN108487331B (en) * 2018-03-21 2020-02-21 东北大学 Underground structure anti-floating system integrating gallery drainage and fertilizer groove seepage prevention
CN112726682A (en) * 2020-12-29 2021-04-30 中赟国际工程有限公司 Construction method for preventing water scattering and cracking in combination of high water level area and waterproof curtain
CN113323032A (en) * 2021-06-08 2021-08-31 上海宝冶集团有限公司 Method for preventing underground garage from floating upwards

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JP2000096596A (en) * 1998-09-22 2000-04-04 Nkk Corp Floating prevention structure of buried construction
CN201254732Y (en) * 2008-09-10 2009-06-10 中国建筑第四工程局有限公司 Prevention and training combined water proofing system for basement
CN102720217A (en) * 2012-06-12 2012-10-10 浙江城建建设集团有限公司 Basement watertightness structure and construction method thereof
CN202706063U (en) * 2012-06-15 2013-01-30 南京工业大学 Waterproof moistureproof system for basement
CN103774663B (en) * 2014-02-19 2015-10-07 深圳大学建筑设计研究院 The water proof structure of basement anti-floating dowel and construction method
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Address after: No. 131, Haiman City, Jiangsu Province, Haimen City, Jiangsu

Patentee after: Jiangsu Nantong three construction group Limited by Share Ltd

Address before: No. 131, Haiman City, Jiangsu Province, Haimen City, Jiangsu

Patentee before: Jiangsu Nantong No.3 Construction Group Co., Ltd.