CN104846841A - Anti-floating construction method for basements without uplift piles - Google Patents
Anti-floating construction method for basements without uplift piles Download PDFInfo
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- CN104846841A CN104846841A CN201510271245.2A CN201510271245A CN104846841A CN 104846841 A CN104846841 A CN 104846841A CN 201510271245 A CN201510271245 A CN 201510271245A CN 104846841 A CN104846841 A CN 104846841A
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- gutter
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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
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, generally squeezes into uplift pile, reaches earth excavation after some strength until uplift pile, carry out sole plate and structure construction, reach after design strength until structure, carry out backfilling of earthwork in ground.For the ground storehouse of groundwater table lower than sole plate, often do not design uplift pile, by the impact in Pluvial, in storehouse, ground construction period, surrounding is after rain penetration, and groundwater table is apparently higher than sole plate, owing to lacking uplift pile, under the effect of buoyancy force of underground water, very easily there is rising phenomenon in storehouse, ground, has a strong impact on the construction quality in storehouse, ground.Again injection uplift pile, cost drops into comparatively large, and has larger impact to programming.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of storehouse, ground anti-floating construction method without uplift pile, and this construction method also effectively can reduce the buoyancy in Groundwater storehouse when not arranging uplift pile, improves construction safety.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
Without storehouse, a ground anti-floating construction method for uplift pile, comprise the following steps:
(1) excavation of foundation pit: after excavation of foundation pit to design elevation, bottom is watered and is smash foundation pad;
(2) service sleeve: sleeve pipe edge in length and breadth axle is arranged, spacing is 3300-3900mm, sleeve pipe upper surface exceeds ground house bottom plate, and soffit penetrates foundation pad;
(3) fish tail and waterproof layer construction: waterproof roll is pasted in the position avoiding sleeve pipe at foundation pad 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, waterproof roll builds one deck pea gravel concreten again, form fish tail and waterproof layer, after fish tail and waterproof layer intensity reaches requirement, waiting that steel plate water stopper is enclosed along sleeve outer wall welding one in the position of building in the middle part of ground house bottom plate;
(4) ground house bottom plate is built: colligation ground house bottom plate reinforcing bar, and adopted by sleeve outer wall fixing muscle to be fixed on " well " sub-shape on the muscle up and down of ground house bottom plate reinforcing bar, build 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 the maintenance of sleeve pipe surrounding waterproofing work completes, edge in length and breadth Axis Cross arranges the gutter that width is 200-220mm, snap the line formwork on ground house bottom plate;
(6) build whole casting layer: colligation single-layer bidirectional steel mesh reinforcement on ground house bottom plate, build whole casting layer concrete, the upper surface of whole casting layer with the gutter mould upper surface flush of propping up, strike off with long floating rule when reaching design elevation, the front wood float of initial set is polished compacting;
(7) gutter waterproofing work: after whole casting layer intensity reaches requirement, remove the gutter mould that props up, Polymer cement materials is smeared in the position sidewall in gutter and bottom being avoided to sleeve pipe, and the upper surface of bottom polymeric cement waterproofing mortar is lower than sleeve pipe;
(8) backfill is strengthened: storehouse exterior wall and top board assembling reinforcement over the ground, concreting, after intensity reaches requirement, builds at the region plain concrete of ground house bottom plate 1m outward, and district is strengthened in basis of formation backfill; Adopt sixteen dirt back-fillings in layers between ground storehouse exterior wall and excavation slope, form grey soil layer; At foundation ditch top surrounding excavation, formwork, build with plain concrete the land drain that width is 400-450mm, grey soil layer top, to harden with plain concrete between land drain and ground storehouse top board, form organized weathering;
(9) shutoff: the water in sleeve pipe drains rear filling slightly expanded concrete, reaches at cannula tip welding steel plate for sealing water after requirement of strength, finally by the sidewall in gutter and bottom dabbing, clear up, connect oar, use pea gravel concreten shutoff.
Above-mentioned sleeve pipe is the steel sleeve of thick 5mm, internal diameter 100mm.
The side of above-mentioned grey soil layer top and weathering closely storehouse exterior wall is all higher than its opposite side.
The thickness of above-mentioned steel plate water stopper is 3mm, and width is 50mm.
Compared with prior art, advantage of the present invention is: the present invention to the storehouse, ground of not establishing uplift pile of 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, adopt backfill to strengthen and arrange land drain, ground open fire is stoped to enter in storehouse, ground, the buoyancy in Groundwater storehouse is reduced by internal drainage, the outward mode combined that blocks water, without the need to arranging uplift pile, greatly reduce cost and the difficulty of construction, improve the safety of work progress.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Fig. 1 is structural representation of the present invention;
The structure for amplifying schematic diagram in Tu2Shi Tu1Zhong A district;
Fig. 3 is the structural representation after shutoff of the present invention.
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, comprises the following steps:
(1) excavation of foundation pit: after excavation of foundation pit to design elevation, bottom is watered and is smash foundation pad 1;
(2) service sleeve 4: the steel sleeve of thick 5mm, internal diameter 100mm selected by sleeve pipe 4, 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 soffit penetrates foundation pad 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 foundation pad 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, waterproof roll 3 is built again the thick pea gravel concreten of one deck 40mm, form fish tail and waterproof layer 5, after fish tail and waterproof layer 5 intensity reaches requirement, waiting that the steel plate water stopper 6 that thickness is 3mm, width is 50mm is enclosed along sleeve pipe 4 outer wall welding one in the position of building in the middle part of the base plate of storehouse 2, ground;
(4) storehouse 2, ground base plate is built: storehouse 2, colligation ground baseplate reinforcing bar, and adopted by sleeve pipe 4 outer wall 12 of four long 1300mm fixing muscle 42 to be fixed on " well " sub-shape on the muscle up and down 21 of storehouse 2, ground baseplate reinforcing bar, build 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, carry out curing at moisture-retention and heat-insulation after having built, curing time is no less than 14 days;
(5) determine position, gutter 7: after the maintenance of sleeve pipe 4 surrounding waterproofing work completes, edge in length and breadth Axis Cross arranges the gutter 7 that width is 200mm, snap the line formwork on the base plate of storehouse, ground 2;
(6) whole casting layer 8 is built: colligation single-layer bidirectional steel mesh reinforcement 8@150 on the base plate of storehouse, ground 2, whole casting layer 8 is built up with the C25 concrete casting that seepage-resistant grade is P6, the upper surface of whole casting layer 8 with the gutter 7 mould upper surface flush of propping up, strike off with long floating rule when reaching design elevation, the front wood float of initial set is polished compacting, with closed receipts water crack seam;
(7) gutter 7 waterproofing work: after whole casting layer Final 8 degree reaches requirement, remove the gutter mould that props up, the thick Polymer cement materials of 15mm 71 is smeared in the position sidewall in gutter 7 and bottom being avoided to sleeve pipe 4;
(8) backfill is strengthened: storehouse 2 exterior wall and top board assembling reinforcement over the ground, concreting, after intensity reaches requirement, builds at the region C10 plain concrete of storehouse, ground 2 base plate 1m outward, and district 11 is strengthened in basis of formation backfill; Adopt sixteen dirt back-fillings in layers between ground storehouse 2 exterior wall and foundation ditch 9 side slope, form grey soil layer 10, layering machinery compacting coefficient of consolidation is not less than 0.94; At foundation ditch 9 top surrounding excavation, formwork, the land drain 13 that width is 400mm is built with C10 plain concrete, concentrate retaining, ground open fire is stoped to enter in storehouse 2, ground and foundation ditch 9, ash soil layer 10 top, to harden with C10 plain concrete between land drain 13 and ground storehouse 2 top board, form organized weathering 12, the side of grey soil layer 10 top and weathering 12 closely storehouse 2 exterior wall is higher than its opposite side;
(9) shutoff: the water in sleeve pipe 4 drains rear filling slightly expanded concrete, reaches steel plate for sealing water 43 thick at cannula tip welding 5mm after requirement of strength, finally by the sidewall in gutter 7 and bottom dabbing, clear up, connect oar, with the shutoff of C30P6 pea gravel concreten.
Construct in the storehouse, ground 2 that the present invention is applicable to excavate, do not establish uplift pile, adopt service sleeve 4 on the concrete 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, groundwater table above Ground storehouse 2 base plate time ooze out through sleeve pipe 4, and collect sump by gutter 7; Adopting basis backfill to strengthen district 11, grey 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.Reduce the buoyancy in Groundwater storehouse by internal drainage, the outward mode combined that blocks water, thus make without the need to arranging uplift pile in the work progress of storehouse 2, ground, greatly reduce cost and the difficulty of construction, work progress hazards are 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 enlightenment of the present invention.All equalizations done according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (4)
1., without storehouse, a ground anti-floating construction method for uplift pile, it is characterized in that, comprise the following steps:
(1) excavation of foundation pit: after excavation of foundation pit to design elevation, bottom is watered and is smash foundation pad;
(2) service sleeve: sleeve pipe edge in length and breadth axle is arranged, spacing is 3300-3900mm, sleeve pipe upper surface exceeds ground house bottom plate, and soffit penetrates foundation pad;
(3) fish tail and waterproof layer construction: waterproof roll is pasted in the position avoiding sleeve pipe at foundation pad 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, waterproof roll builds one deck pea gravel concreten again, form fish tail and waterproof layer, after fish tail and waterproof layer intensity reaches requirement, waiting that steel plate water stopper is enclosed along sleeve outer wall welding one in the position of building in the middle part of ground house bottom plate;
(4) ground house bottom plate is built: colligation ground house bottom plate reinforcing bar, and adopted by sleeve outer wall fixing muscle to be fixed on " well " sub-shape on the muscle up and down of ground house bottom plate reinforcing bar, build 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 the maintenance of sleeve pipe surrounding waterproofing work completes, edge in length and breadth Axis Cross arranges the gutter that width is 200-220mm, snap the line formwork on ground house bottom plate;
(6) build whole casting layer: colligation single-layer bidirectional steel mesh reinforcement on ground house bottom plate, build whole casting layer concrete, the upper surface of whole casting layer with the gutter mould upper surface flush of propping up, strike off with long floating rule when reaching design elevation, the front wood float of initial set is polished compacting;
(7) gutter waterproofing work: after whole casting layer intensity reaches requirement, remove the gutter mould that props up, Polymer cement materials is smeared in the position sidewall in gutter and bottom being avoided to sleeve pipe, and the upper surface of bottom polymeric cement waterproofing mortar is lower than sleeve pipe;
(8) backfill is strengthened: storehouse exterior wall and top board assembling reinforcement over the ground, concreting, after intensity reaches requirement, builds at the region plain concrete of ground house bottom plate 1m outward, and district is strengthened in basis of formation backfill; Adopt sixteen dirt back-fillings in layers between ground storehouse exterior wall and excavation slope, form grey soil layer; At foundation ditch top surrounding excavation, formwork, build with plain concrete the land drain that width is 400-450mm, grey soil layer top, to harden with plain concrete between land drain and ground storehouse top board, form organized weathering;
(9) shutoff: the water in sleeve pipe drains rear filling slightly expanded concrete, reaches at cannula tip welding steel plate for sealing water after requirement of strength, finally by the sidewall in gutter and bottom dabbing, clear up, connect oar, use pea gravel concreten shutoff.
2. a kind of storehouse, ground anti-floating construction method without uplift pile according to claim 1, is characterized in that: described sleeve pipe is the steel sleeve of thick 5mm, internal diameter 100mm.
3. a kind of storehouse, ground anti-floating construction method without uplift pile according to claim 1, is characterized in that: the side of described grey soil layer top and weathering closely storehouse exterior wall is all higher than its opposite side.
4. a kind of storehouse, ground anti-floating construction method without uplift pile according to claim 1, is characterized in that: the thickness of described steel plate water stopper is 3mm, and width is 50mm.
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| CN201510271245.2A CN104846841B (en) | 2015-05-26 | 2015-05-26 | Anti-floating construction method for basements without uplift piles |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105421499A (en) * | 2015-11-24 | 2016-03-23 | 中国一冶集团有限公司 | Anti-floating construction method for basement |
| 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 |
| CN108487331A (en) * | 2018-03-21 | 2018-09-04 | 东北大学 | A kind of underground structure anti-floating system integrating gallery draining and fertile slot antiseepage |
| CN109252553A (en) * | 2018-09-07 | 2019-01-22 | 江苏兴厦建设工程集团有限公司 | A kind of no uplift pile ground library float Structure and construction method |
| CN109372033A (en) * | 2018-11-13 | 2019-02-22 | 湖北天利建筑技术有限责任公司 | Water draw-off and its construction method for Underground Building for Anti-floating |
| CN109440815A (en) * | 2018-11-16 | 2019-03-08 | 上海朗绿建筑科技股份有限公司 | A kind of underground pipe method for arranging and structure |
| 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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| 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 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105421499A (en) * | 2015-11-24 | 2016-03-23 | 中国一冶集团有限公司 | Anti-floating construction method for basement |
| 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 |
| CN108487331A (en) * | 2018-03-21 | 2018-09-04 | 东北大学 | A kind of underground structure anti-floating system integrating gallery draining and fertile slot antiseepage |
| CN109252553A (en) * | 2018-09-07 | 2019-01-22 | 江苏兴厦建设工程集团有限公司 | A kind of no uplift pile ground library float Structure and construction method |
| CN109372033A (en) * | 2018-11-13 | 2019-02-22 | 湖北天利建筑技术有限责任公司 | Water draw-off and its construction method for Underground Building for Anti-floating |
| CN109440815A (en) * | 2018-11-16 | 2019-03-08 | 上海朗绿建筑科技股份有限公司 | A kind of underground pipe method for arranging and structure |
| 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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| CN104846841B (en) | 2017-01-11 |
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Address after: No. 131, Haiman City, Jiangsu Province, Haimen City, Jiangsu Patentee after: JIANGSU NANTONG SANJIAN CONSTRUCTION GROUP Co.,Ltd. Address before: No. 131, Haiman City, Jiangsu Province, Haimen City, Jiangsu Patentee before: NANTONG NO.3 CONSTRUCTION GROUP Co.,Ltd. |
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Effective date of registration: 20221101 Granted publication date: 20170111 |