CN103469828A - Construction method of hydrophobic structure of post-cast strip of bottom plate of basement - Google Patents
Construction method of hydrophobic structure of post-cast strip of bottom plate of basement Download PDFInfo
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- CN103469828A CN103469828A CN2013104395532A CN201310439553A CN103469828A CN 103469828 A CN103469828 A CN 103469828A CN 2013104395532 A CN2013104395532 A CN 2013104395532A CN 201310439553 A CN201310439553 A CN 201310439553A CN 103469828 A CN103469828 A CN 103469828A
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Abstract
The invention provides a construction method of a hydrophobic structure of a post-cast strip of a bottom plate of a basement. The construction method comprises the following steps of (1) positioning and putting a sample; (2) carrying out groove earth excavation; (3) carrying out cushion layer construction; (4) building a trench wall and a draining well; (5) manufacturing and burying a rigid polyvinyl chloride (UPVC) pipe; (6) filling and laying gravels; (7) surfacing cement mortar; (8) constructing a basic cushion layer. The construction method has the advantages of being simple in construction, improving the quality, protecting the environment and the like, and is convenient for construction of the post-cast strip.
Description
Technical field
The present invention relates to a kind of job practices, relate in particular to a kind of basement bottom plate rear pouring tape hydrophobic structure job practices.
Background technology
Development along with builing industry, overlength, the form of structure that super dark basement structure and high-rise main building are connected with annex is more and more, in order to ensure the globality of structure and the impermeability of basement structure, design usually can adopt the form that ater-casting is set to stay in monolithic reinforced concrete structure and establish the temporary construction seam, because ater-casting concreting generally all just can be carried out after the project subject structure completes, so inevitably cause long-term ponding to hide at the basement bottom plate rear pouring tape place dirty, bring the difficulty of construction technology and the hidden danger of construction quality to the ater-casting construction, particularly higher in groundwater table, the soil layer that water percolating capacity is larger, in ater-casting, process, difficulty is just larger.How guaranteeing the ater-casting construction quality, under the prerequisite of the common quality defects such as solution crack, ater-casting, percolating water, accelerating construction progress, use manpower and material resources sparingly, and is the problem of always making great efforts to probe into thinking.Construction experience in the past is at the place, ater-casting, keeps somewhere a sunk type groove, but unsatisfactory from construction effect.The consequence produced is because the ater-casting garbage-cleaning is unclean, or because the ground water pressure impact causes the constuction joint at place, ater-casting the infiltration phenomenon to occur, thereby causes secondary to repair.
Summary of the invention
Main purpose of the present invention is to provide a kind of basement bottom plate rear pouring tape hydrophobic structure job practices, and the advantages such as construction is simple, raising quality, protection of the environment that it has are convenient to the ater-casting construction simultaneously.
In order to achieve the above object, the present invention adopts following technical scheme: a kind of basement bottom plate rear pouring tape hydrophobic structure job practices in turn includes the following steps: (1) location setting-out; (2) groove soil excavation; (3) cushion construction; (4) furrow bank and catch pit are built by laying bricks or stones; (5) the UPVC pipe is made, is buried underground; (6) rubble is filled out paving; (7) cement screedn; (8) foundation pad construction.
Preferably, in step (1), in step (1), with transit, measured unwrapping wire, utilize and control the center line that ater-casting is measured in stake; Carry out level measurement with level gauge, the central point absolute altitude of described ater-casting than the basement plate at the bottom of the low 360mm-410mm of absolute altitude, the gradient by 1% is calculated end, gutter absolute altitude.
Preferably, in step (2), ater-casting bottom land excavation width equals the bed course width and adds the both sides face width, and every side face width should be not less than 280mm-310mm.
Preferably, in step (3), after the excavation of ater-casting, nail on the little short wooden stake of elevation control by drainage grade on concrete base layer, its spacing is controlled at 1.8m-2.2m.
Preferably, in step (3), in step (3), do ash cake on concrete base layer, described ash cake adopts fine-stone concrete.
Preferably, in step (4), brick furrow bank is the fissure of displacement up and down, inside and outside overlap joint, but basecoat and last layer brick, and the application T-shaped is built by laying bricks or stones.
Preferably, in step (4), brick furrow bank adopts MU10 cement solid brick, M5 masonry of cement mortar.
Preferably, in step (5), gutter UPVC pipe used adopts Φ 100 heavy wall reinforced pipes, and the punching of UPVC pipe adopts power drill, and the drill bit of joining Φ 20-Φ 25 is holed by quincunx on tube wall, and position, hole rectilineal interval is 280mm-310mm.
The invention has the beneficial effects as follows: the present invention utilizes in end, He ater-casting, the brick gutter with certain slope, bottom, ater-casting a hydrophobic structure system with some strength and rigidity of catch pit formation is set.Upper and lower two parts are divided in gutter, and centre separates with cement sand bed, and upper space not only can be piled up foreign material in ater-casting, and can make the ditch internal water accumulation get rid of in time; Bottom is buried the UPVC gutter underground, and tube wall is pressed quincunx brill permeable hole, surrounding landfill rubble, and the masonry sidewall does not whitewash, and is convenient to the infiltration of underground water, and in time underground water is discharged; By submersible pump in catch pit, water is extracted out again, reached hydrophobic purpose, avoided the impact of underground water on the ater-casting construction quality, guaranteed the construction quality of ater-casting, thoroughly solved the common quality defect of ater-casting seam crossing infiltration.
The accompanying drawing explanation
Fig. 1 is embodiment of the present invention job practices flow chart.
Fig. 2 is embodiment of the present invention ater-casting hydrophobic structure schematic cross-section.
In Fig. 2: 1-fills macadam, 2-gutter, 3-concrete base layer, the brick furrow bank of 4-, 5-concrete cushion, 6-concrete floor, 7-ater-casting, 8-cement sand bed.
The specific embodiment
The realization of the object of the invention, functional characteristics and beneficial effect, be described further below in conjunction with specific embodiment and accompanying drawing.
Below in conjunction with the drawings and specific embodiments, technical scheme of the present invention is described in further detail, can be implemented so that those skilled in the art can better understand the present invention also, but illustrated embodiment is not as a limitation of the invention.
Embodiment of the present invention basement bottom plate rear pouring tape hydrophobic structure job practices, comprise the steps:
(1) location setting-out
1, the Work sectors of determining engineering is divided.According to sequence of construction and the ater-casting design attitude of earthwork engineering of foundation pit, rationally determine the construction flowing water section of hydrophobic structure, to meet the requirement of construction speed.
2, measured unwrapping wire with transit, utilize and control the center line that ater-casting 7 is measured in stake, 7 starting point, terminal and corner in ater-casting, follow closely a longer timber and control stake as center, with two control points, controls this stake.According to ater-casting 7 design width, determine excavation width and the cutting depth of 7 cubic metres of earth of ater-castings.Emit upper shed grooving line, and ground on the scene spreads out gray line with lime.
3, carry out level measurement with level gauge, ater-casting 7 central point absolute altitudes than the basement plate at the bottom of the low 400mm of absolute altitude, then by 1% the gradient, calculate to water and be with 7 end absolute altitudes.
(2) groove soil excavation
When 1, pit earthwork excavates, according to ater-casting 7, control stake and ater-casting 7 width lime suitable for reading lines, while excavating with pit earthwork, the groove earthwork in 7 gutters, ater-casting is excavated in the lump.Generally because ater-casting 7 degree of depth are little, therefore do not need to be put slope.The bottom land excavation width equals the bed course width and adds the both sides face width, and every side face width should be not less than 300mm.
2,, during 7 soil excavation of ater-casting, by definite scheme, the special messenger is responsible for surveying and establishing the bottom of trench absolute altitude and control stake with the excavation progress, and commander's excavator is constructed.Error≤the 50mm of bottom of trench absolute altitude.
(3) cushion construction
1, after channel excavation, nail on the little short wooden stake of elevation control by drainage grade on concrete base layer 3, its spacing is controlled at the 2m left and right, does ash cake (ash cake employing fine-stone concrete) on concrete base layer 3.
2, with the thick C10 concrete cushion concrete of Manual 100, thickness, a little more than ash cake, is used 2 meters long Horizontal scrapping rules immediately, according to the ash cake height, the concrete of concrete cushion 5 is struck off, and, with progressively compacting of wood float, guarantee the concrete closely knit of concrete cushion 5.
3, the surface layer press polish levelling of concrete cushion 5, the press polish levelling at least divides two times press polish with wood float, and progressively strengthens trowel finish, and its press polish work should complete before cement final set.
4, after bed course has been built, the water curing of should wetting in the 12h left and right.
(4) furrow bank and catch pit are built by laying bricks or stones
1, concrete cushion 5 have some strength can above people after, the face of concrete cushion 5 should first clean, and water washes away totally.By the definite size of scheme, eject masonry by the inboard width of brick furrow bank 4 on 5 of concrete cushions and build inner edge by laying bricks or stones.
2, should check size, elevation and the midline position of concrete cushion 5 before laying bricks, after the concrete crushing strength of concrete cushion 5 meets the demands, can start to lay bricks.
3, brick furrow bank 4 adopts MU10 cement solid brick, M5 masonry of cement mortar.
4, brick should water before using, and brick furrow bank 4 is the fissure of displacement up and down, inside and outside overlap joint, but basecoat and last layer brick are applied T-shaped and are built by laying bricks or stones.
5, build stalk by laying bricks or stones and answer hanging wire.The masonry surface should be straight, with building with levelling.
6, brick furrow bank 4 end face absolute altitudes should strictly be controlled, and must not exceed concrete floor 6 bottom surface absolute altitudes.
(5) the UPVC pipe is made, is buried underground
1, gutter 2 UPVC used pipe adopts Φ 100 heavy wall reinforced pipes, and, according to the length in gutter, calculates the length of required pipe arrangement.
2, the punching of UPVC pipe can utilize on-the-spot idle place to carry out processing and fabricating, and punching adopts power drill, and the drill bit of joining Φ 20～Φ 25 is holed by quincunx on tube wall, and the hole rectilineal interval is 300mm.
3, after has built by laying bricks or stones in 7 gutters, ater-casting, just the tubing processed can be routed in ditch.
4, between the UPVC pipe, adopt special connecting piece to be connected, according to this engineering method environment for use and requirement, connector can directly be connected with tubing, does not need to use special-purpose bonding glue to carry out affixed.
(6) rubble is filled out paving
1, gutter 2 is laid on and fills macadam 1, with the local pile things on of rubble segmentation, fixes.
2, fill the interior paving rubble of evenly filling out of macadam 1, and definite thickness flattens by scheme.
(7) cement screedn 8
1, after the interior rubble of filling macadam 1 is filled out the paving leveling, can carry out the cement screedn construction.
2, before cement screedn 9 constructions, the suitable moistening filling macadam of water 1 surface.
3, by surface thickness and drainage grade, make filling on macadam 1 surface, the mortar material match ratio should be identical with the mortar of surface layer.
4, between ash cake, mortar is laid evenly, then by length, drawn together chi and strike off and make real by the ash cake height, after receipts water, compacting is floating.Minute secondary is smeared pressure, and ditch seam, hollow hole, the pitted skin of surperficial no concave-convex injustice and peeling off will keep the smooth of surface layer.
5, fully wet curing after 12 hours, maintenance generally is not less than 7d, and the teletostage will be carried out warming antifreeze work.
The embodiment of the present invention has following characteristics:
1) the ater-casting hydrophobic structure is set, construction technology is simple, can construct in foundation construction stage and basic brick loose tool simultaneously.
2) adopt the ater-casting hydrophobic structure can discharge in time underground water and ater-casting internal water accumulation, reach hydrophobic purpose.
3) adopt the ater-casting hydrophobic structure to avoid basement bottom board hypodermis reinforcing bar by cement paste or garbage bury, reduced cleaning artificial.
4) the ater-casting hydrophobic structure also can be used for the draining of basement construction later stage, meets the requirement of basement anti-floating draining.
5) adopt the ater-casting hydrophobic structure to solve the common quality defect of basement bottom plate rear pouring tape position percolating water, avoided the later stage renewal expense caused because of percolating water.
Claims (8)
1. a basement bottom plate rear pouring tape hydrophobic structure job practices, is characterized in that: in turn include the following steps: (1) location setting-out; (2) groove soil excavation; (3) cushion construction; (4) furrow bank and catch pit are built by laying bricks or stones; (5) the UPVC pipe is made, is buried underground; (6) rubble is filled out paving; (7) cement screedn; (8) foundation pad construction.
2. basement bottom plate rear pouring tape hydrophobic structure job practices according to claim 1, is characterized in that: in step (1), with transit, measured unwrapping wire, utilize and control the center line that ater-casting is measured in stake; Carry out level measurement with level gauge, the central point absolute altitude of described ater-casting than the basement plate at the bottom of the low 360mm-410mm of absolute altitude, the gradient by 1% is calculated end, gutter absolute altitude.
3. basement bottom plate rear pouring tape hydrophobic structure job practices according to claim 1, it is characterized in that: in step (2), ater-casting bottom land excavation width equals the bed course width and adds the both sides face width, and every side face width should be not less than 280mm-310mm.
4. basement bottom plate rear pouring tape hydrophobic structure job practices according to claim 3, it is characterized in that: in step (3), after the excavation of ater-casting, nail on the little short wooden stake of elevation control by drainage grade on concrete base layer, its spacing is controlled at 1.8m-2.2m.
5. basement bottom plate rear pouring tape hydrophobic structure job practices according to claim 1, is characterized in that: in step (3), do ash cake on concrete base layer, described ash cake employing fine-stone concrete.
6. a kind of basement bottom plate rear pouring tape hydrophobic structure job practices according to claim 1, it is characterized in that: in step (4), brick furrow bank is the fissure of displacement up and down, inside and outside overlap joint, but basecoat and last layer brick, the application T-shaped is built by laying bricks or stones.
7. basement bottom plate rear pouring tape hydrophobic structure job practices according to claim 1 is characterized in that: in step (4), brick furrow bank adopts MU10 cement solid brick, M5 masonry of cement mortar.
8. basement bottom plate rear pouring tape hydrophobic structure job practices according to claim 1, it is characterized in that: in step (5), gutter UPVC pipe used adopts Φ 100 heavy wall reinforced pipes, the punching of UPVC pipe adopts power drill, the drill bit of joining Φ 20-Φ 25, on tube wall, by quincunx, holed, position, hole rectilineal interval is 280mm-310mm.
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| CN2013104395532A CN103469828A (en) | 2013-09-25 | 2013-09-25 | Construction method of hydrophobic structure of post-cast strip of bottom plate of basement |
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| CN2013104395532A CN103469828A (en) | 2013-09-25 | 2013-09-25 | Construction method of hydrophobic structure of post-cast strip of bottom plate of basement |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104404985A (en) * | 2014-10-08 | 2015-03-11 | 中国十七冶集团有限公司 | Construction method for basement floor post-cast strip waterproofing structure |
| CN104846849A (en) * | 2014-02-17 | 2015-08-19 | 中国二十冶集团有限公司 | Method for preventing basement bottom plate post-cast strip from leaking |
| CN109930781A (en) * | 2019-04-02 | 2019-06-25 | 浙江力唯装饰设计工程有限公司 | A kind of accomodation ground construction method |
| CN113006151A (en) * | 2021-02-22 | 2021-06-22 | 四川童燊防水工程有限公司 | Grouting, plugging and reinforcing construction method for basement post-cast strip |
| CN113566019A (en) * | 2021-06-29 | 2021-10-29 | 中国二十冶集团有限公司 | Construction method for laying drainage pipe network without excavating upper part of ground reservoir |
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| KR100841696B1 (en) * | 2006-06-05 | 2008-06-27 | 유용진 | Manufacturing method and execution method of the chemical resin lining precast concrete culvert which uses the installation structure and this liner of the chemical resin liner |
| CN101298781A (en) * | 2008-06-13 | 2008-11-05 | 浙江省一建建设集团有限公司 | Basement bottom plate rear pouring tape construction method |
| CN102392549A (en) * | 2011-11-23 | 2012-03-28 | 大连市建设工程集团有限公司 | Construction working method for seamless prestressed-concrete self-waterproof clean water reservoir |
| CN203034494U (en) * | 2012-12-24 | 2013-07-03 | 浙江天力建设集团有限公司 | Water draining structure for basement bottom plate back watering belt |
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2013
- 2013-09-25 CN CN2013104395532A patent/CN103469828A/en active Pending
Patent Citations (4)
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| KR100841696B1 (en) * | 2006-06-05 | 2008-06-27 | 유용진 | Manufacturing method and execution method of the chemical resin lining precast concrete culvert which uses the installation structure and this liner of the chemical resin liner |
| CN101298781A (en) * | 2008-06-13 | 2008-11-05 | 浙江省一建建设集团有限公司 | Basement bottom plate rear pouring tape construction method |
| CN102392549A (en) * | 2011-11-23 | 2012-03-28 | 大连市建设工程集团有限公司 | Construction working method for seamless prestressed-concrete self-waterproof clean water reservoir |
| CN203034494U (en) * | 2012-12-24 | 2013-07-03 | 浙江天力建设集团有限公司 | Water draining structure for basement bottom plate back watering belt |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104846849A (en) * | 2014-02-17 | 2015-08-19 | 中国二十冶集团有限公司 | Method for preventing basement bottom plate post-cast strip from leaking |
| CN104404985A (en) * | 2014-10-08 | 2015-03-11 | 中国十七冶集团有限公司 | Construction method for basement floor post-cast strip waterproofing structure |
| CN109930781A (en) * | 2019-04-02 | 2019-06-25 | 浙江力唯装饰设计工程有限公司 | A kind of accomodation ground construction method |
| CN113006151A (en) * | 2021-02-22 | 2021-06-22 | 四川童燊防水工程有限公司 | Grouting, plugging and reinforcing construction method for basement post-cast strip |
| CN113566019A (en) * | 2021-06-29 | 2021-10-29 | 中国二十冶集团有限公司 | Construction method for laying drainage pipe network without excavating upper part of ground reservoir |
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Application publication date: 20131225 |