CN102286984A - Water-stop curtain and construction method thereof - Google Patents
Water-stop curtain and construction method thereof Download PDFInfo
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- CN102286984A CN102286984A CN2011101372258A CN201110137225A CN102286984A CN 102286984 A CN102286984 A CN 102286984A CN 2011101372258 A CN2011101372258 A CN 2011101372258A CN 201110137225 A CN201110137225 A CN 201110137225A CN 102286984 A CN102286984 A CN 102286984A
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Abstract
The embodiment of the invention provides a water-stop curtain. The water-stop curtain is formed outside a foundation pit wall by occluding sleeved cast-in-place piles and jet grouting piles. The water-stop curtain has the following beneficial effects: the curtain takes full advantage of the bending resistance of the sleeved cast-in-place piles and the water-stop property of the jet grouting piles; full-length seamless construction of the wall body can be realized, the problems of water seepage, quick sand and the like of the foundation pit can be effectively prevented and the common quality faults, such as caved holes, constriction and the like of other types of the punched/drilled cast-in-place piles can be effectively prevented; a fully casing drill rig is adopted to drill holes to form piles, an earthwork excavation process can not destroy the surrounding soil body structure and is safe in operation, a construction process is free from slurry pollution and the reinforced concrete piles formed by pouring are neat and regular; compared with the traditional punched/drilled piling and underground diaphragm wall processes, a construction method of the curtain has the advantages of smaller earthwork excavation quantity and lower impact and pollution of construction on the ambient environment; compared with the underground diaphragm walls and the drilling occlusive piles, the curtain has higher construction speed and lower cost; and the construction process can be divided into a plurality of construction sections and construction section interface seepage can not be caused, so that flow construction operation is easy to form, thus the construction efficiency is increased.
Description
Technical field
The present invention relates to the realm of building construction, relate in particular to a kind of water-stop curtain and job practices thereof.
Background technology
Along with developing rapidly of China's construction market, the emerge in multitude of high level and super highrise building is in the high area of groundwater table, near filling out Haiti district, alluvial delta area, geological conditions areas with complicated deep-foundation pit engineering ubiquities such as mud or drift sand being arranged.For realizing the sealing purpose of deep foundation ditch, prior art provides multiple water-stop curtain to comprise diaphragm wall, drill-pouring interlock stake and sleeve pipe perfusion interlock stake etc.Wherein more general diaphragm wall and perfusion interlock stake, and cost is lower and be the water-stop curtain that the mutual interlock of sleeve filling pile forms to lower a kind of of ambient influnence, its sealing principle mainly is to form second sleeve filling pile at the middle concrete perfusion once more of adjacent two first sleeve filling piles that construct previous stage, and supporting and sealing are carried out in the mutual interlock formation of first sleeve filling pile and second sleeve filling pile " piling wall ".
Because second sleeve filling pile must be finished construction before concrete final set, this requires very high to concrete super retarding performance, in case cause surpassing slow setting stake final setting time because of plant equipment breaks down, to make first sleeve filling pile and second sleeve filling pile can't form occluding relation, even can't construct, directly have influence on the waterproof between piles effect.
Summary of the invention
Embodiment of the invention technical problem to be solved is, a kind of water-stop curtain and job practices thereof are provided, and infiltration occurs, leaks and the drift sand phenomenon to prevent foundation ditch, guarantees construction high efficiency and low cost.
In order to solve the problems of the technologies described above, the embodiment of the invention has proposed a kind of water-stop curtain, comprises the sleeve filling pile that keeps at a certain distance away and be provided with along foundation pit walls, and is arranged between adjacent two sleeve filling piles and the rotary churning pile of interlock with it.
Correspondingly, the embodiment of the invention also provides a kind of job practices of water-stop curtain, comprising:
Form the gathering sill of reserving sleeve filling pile construction position and jet grouting pile construction position in the construction section to top, the foundation pit walls outside;
Carry out the sleeve filling pile construction to described sleeve filling pile construction position, form sleeve filling pile;
Jet grouting pile construction is carried out in the jet grouting pile construction position of finishing the construction of described sleeve filling pile and satisfy between adjacent two sleeve filling piles of jet grouting pile construction condition, form rotary churning pile with described sleeve filling pile interlock.
The embodiment of the invention forms water-stop curtain by be engaged in the foundation pit walls outside by sleeve filling pile and rotary churning pile, has following beneficial effect:
1, can effectively prevent problems such as foundation ditch occurs seep water, leaks, drift sand, effectively prevent and treat the common common quality defect of the other types drill hole pouring piles such as hole, constriction that collapse;
2, make full use of the anti-bending strength of sleeve filling pile and the sealing performance of rotary churning pile, adopt all casing drill bored pile, handling safety, the work progress mud-less pollution, the reinforced concrete pile of pouring moulding is rule neatly;
3, still less, construction is to the influence of surrounding environment and pollute minimum than the earthwork excavated volume of the row of piles stake of traditional drill hole, diaphragm wall technology;
4, than traditional diaphragm wall, boring wants and pile driving construction speed is faster, cost is lower, and do not change or destroy peripheral underground soil structures and environment;
5, sleeve filling pile and rotary churning pile can accomplish that in construction total length do not have seam construction, can be divided into a plurality of construction sections and can not form construction section interface seepage, form the flowing water construction operation easily, have improved efficiency of construction.
Description of drawings
Fig. 1 is the main flow chart of job practices of the water-stop curtain of the embodiment of the invention.
Fig. 2 is the structural representation of the gathering sill 1 of the embodiment of the invention.
Fig. 3 is the flow chart of the sleeve filling pile construction in the embodiment of the invention.
Fig. 4 is the flow chart of the jet grouting pile construction in the embodiment of the invention.
Fig. 5 is the sleeve filling pile of the embodiment of the invention and the occluding relation figure of rotary churning pile.
Fig. 6 is the structural representation of the water-stop curtain of the embodiment of the invention.
The specific embodiment
Below in conjunction with accompanying drawing, the embodiment of the invention is elaborated.
As shown in Figure 1, the job practices of the water-stop curtain of the embodiment of the invention mainly comprises:
101, as shown in Figure 2, to forming the gathering sill 4 of reserving sleeve filling pile construction position 2 and jet grouting pile construction position 3 in the construction section of top, foundation pit walls 1 outside;
102, the sleeve filling pile construction is carried out in the sleeve filling pile construction position 2 in construction section, forms sleeve filling pile, and particularly, step 102 can comprise flow process as shown in Figure 3:
301, drill machine with casing is in place;
302, with sleeve pipe centered cover pipe perfusion pile construction in place position 2;
303, the verticality of observing and controlling sleeve pipe;
304, adopt drill machine with casing to be pressed into the first segment sleeve pipe to sleeve filling pile construction position 2;
305, the sleeve pipe position grabbed bucket fetch earth;
306, sleeve pipe creeps into until the sleeve filling pile projected depth by joint, forms the sleeve filling pile hole;
307, the cleaning loosened soil is also inspected for acceptance;
308, in the sleeve filling pile hole, lay reinforcing cage;
309, the concrete pouring conduit is laid in lifting;
310, adopt the concrete pouring conduit in the sleeve filling pile hole of laying reinforcing cage, to pour into concrete, finally form sleeve filling pile 5;
103, jet grouting pile construction is carried out in jet grouting pile construction position 3 between the sleeve filling pile construction of finishing above-mentioned 301-310 step and adjacent two sleeve filling piles 5 that satisfy the jet grouting pile construction condition, form rotary churning pile 6 with sleeve filling pile 5 interlocks, particularly, step 103 can comprise flow process as shown in Figure 4:
401, rig is in place;
402, adopt rig to be holed to the rotary churning pile projected depth in jet grouting pile construction position 3, form the rotary churning pile hole;
403, rotary jetting apparatus is in place;
404, prepare cement grout;
405, adopt rotary jetting apparatus sinking churning to inject cement grout to the rotary churning pile hole;
406, rotary jet grouting finally forms rotary churning pile 6,
After step 102,103, the sleeve filling pile 5 in the water-stop curtain of the embodiment of the invention forms occluding relation with rotary churning pile 6 can be as shown in Figure 5;
104, in sleeve filling pile 5 and 6 jacking row of rotary churning pile Guan Liang construction, form hat beam 7;
According to demand, the construction of brace summer in can also carrying out after 104 is specifically extended the interior brace summer 8 that steel concrete is set by hat beam 7 to the direction of foundation ditch,
By after the step 104, the water-stop curtain of the embodiment of the invention can be as shown in Figure 6.
As a concrete construction example, certain A plot, regional center district engineering, about 10000 ㎡ of floor space plan to build commercial and residential building and basement, and the excavation of foundation pit degree of depth reaches 8.9m.This engineering place absolute altitude is+5.1m, put sloping cutting depth 2.6m, its water-stop curtain adopts the occlusion structure of sleeve filling pile and rotary churning pile, wherein, sleeve filling pile stake top mark height+1.5m, rotary churning pile stake top mark height+1.5m, sleeve filling pile and rotary churning pile stake top are provided with 1.2m * 1m Guan Liang, along the foundation ditch arranged around, and in one steel concrete of stake apical cap beam setting brace summer, absolute altitude-3.9m at the bottom of the foundation ditch, sleeve filling pile length 13-16m, rotary churning pile length 13-16m, sleeve filling pile and rotary churning pile go into the foundation ditch bottom lengths greater than 7.6m, and pass layer of sand and be not less than 1m.This water-stop curtain has that supporting and protection structure is firm, stagnant water effect is good, the construction environment influence is little, constructing operation simply reaches the characteristics of saving cost, and is easy to promote.
Be understandable that the length of sleeve filling pile and rotary churning pile can be selected according to foundation depth, is not limited in 13-16m, values such as 50m also are fine.
The above is the specific embodiment of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also are considered as protection scope of the present invention.
Claims (9)
1. a water-stop curtain is characterized in that, comprises the sleeve filling pile that keeps at a certain distance away and be provided with along foundation pit walls, and is arranged between adjacent two sleeve filling piles and the rotary churning pile of interlock with it.
2. water-stop curtain as claimed in claim 1 is characterized in that, described sleeve filling pile and rotary churning pile stake top are provided with Guan Liang.
3. water-stop curtain as claimed in claim 1 or 2 is characterized in that the length of described sleeve filling pile and rotary churning pile is 13-16m.
4. the job practices of a water-stop curtain is characterized in that, comprising:
Form the gathering sill of reserving sleeve filling pile construction position and jet grouting pile construction position in the construction section to top, the foundation pit walls outside;
Carry out the sleeve filling pile construction to described sleeve filling pile construction position, form sleeve filling pile;
Jet grouting pile construction is carried out in the jet grouting pile construction position of finishing the construction of described sleeve filling pile and satisfy between adjacent two sleeve filling piles of jet grouting pile construction condition, form rotary churning pile with described sleeve filling pile interlock.
5. method as claimed in claim 4 is characterized in that, described sleeve filling pile construction specifically comprises:
With sleeve pipe in place to described in sleeve filling pile construction position;
Be pressed into described sleeve pipe and described sleeve pipe position grabbed bucket to described sleeve filling pile construction position and fetch earth,, form the sleeve filling pile hole until the sleeve filling pile projected depth;
In described sleeve filling pile hole, lay reinforcing cage;
Adopt the concrete pouring conduit in the sleeve filling pile hole of laying reinforcing cage, to pour into concrete, finally form described sleeve filling pile.
6. method as claimed in claim 4 is characterized in that, described jet grouting pile construction specifically comprises:
Adopt rig to be holed to the rotary churning pile projected depth in described jet grouting pile construction position, form the rotary churning pile hole;
Adopt rotary jetting apparatus sinking churning to inject cement grout to described rotary churning pile hole, finally form described rotary churning pile.
7. method as claimed in claim 4 is characterized in that, this method also comprises:
In described sleeve filling pile and rotary churning pile stake jacking row Guan Liang construction, form Guan Liang.
8. method as claimed in claim 4, it is characterized in that the length of described sleeve filling pile and rotary churning pile is 13-16m, and go into the foundation ditch bottom lengths greater than 7.6m, when the geological stratification of construction contained layer of sand, the length that described sleeve filling pile and rotary churning pile pass layer of sand was not less than 1m.
9. as each described method among the claim 4-8, it is characterized in that this method is applied to the high area of groundwater table, near filling out Haiti district, alluvial delta area or mud being arranged or the water-stop curtain construction of drift sand area deep foundation ditch.
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| CN2011101372258A CN102286984A (en) | 2011-05-25 | 2011-05-25 | Water-stop curtain and construction method thereof |
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| CN2011101372258A CN102286984A (en) | 2011-05-25 | 2011-05-25 | Water-stop curtain and construction method thereof |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103114609A (en) * | 2013-02-06 | 2013-05-22 | 上海市机械施工有限公司 | Connection device of new and old underground diaphragm walls and construction method |
| CN103306277A (en) * | 2013-06-24 | 2013-09-18 | 北京市机械施工有限公司 | Construction method for fabricating composite waterproof curtain by embedding rigid piles into low-strength concrete piles |
| CN103556646A (en) * | 2013-09-29 | 2014-02-05 | 河北钢铁集团矿业有限公司 | Method for forming water shutoff walls in sand and gravel layer |
| CN103711136A (en) * | 2013-08-28 | 2014-04-09 | 中交二公局第一工程有限公司 | Deeply buried bearing platform curtain structure of bridge and process for constructing deeply buried bearing platform curtain structure |
| CN103967015A (en) * | 2014-05-21 | 2014-08-06 | 刘绍国 | Water-stopping deep foundation pit excavation method and structure thereof |
| CN103967002A (en) * | 2013-01-28 | 2014-08-06 | 深圳市勘察测绘院有限公司 | Occlusive pile construction method |
| CN104060613A (en) * | 2013-03-22 | 2014-09-24 | 上海市城市建设设计研究总院 | Directional secant pile grouting structure and directional secant pile grouting soil reinforcement method |
| CN104499495A (en) * | 2014-12-23 | 2015-04-08 | 中国建筑西南勘察设计研究院有限公司 | Waterproof curtain wall for foundation pit |
| CN105220700A (en) * | 2015-09-11 | 2016-01-06 | 中铁第四勘察设计院集团有限公司 | Foundation pit waterproof curtain reinforcement |
| CN106522253A (en) * | 2016-11-04 | 2017-03-22 | 四川共拓岩土科技股份有限公司 | Construction method for precise drilling and grouting on large-water-depth toe board |
| CN106592514A (en) * | 2016-12-09 | 2017-04-26 | 济南市市政工程有限公司 | Construction method of old city riverway piling wall integrated vertical type retaining wall |
| CN107587502A (en) * | 2017-09-23 | 2018-01-16 | 北京建材地质工程有限公司 | A kind of spiral-digging pore pressure pour water soil occlusion curtain pile construction method |
| CN108677981A (en) * | 2018-04-18 | 2018-10-19 | 中国十七冶集团有限公司 | A kind of discharge structure and its construction method of ultra-deep piping lane foundation pit |
| CN109322699A (en) * | 2018-09-29 | 2019-02-12 | 山东省地质矿产勘查开发局八0水文地质工程地质大队 | Pollution isolation blocking technology under a kind of mine |
| CN110185296A (en) * | 2019-05-31 | 2019-08-30 | 中国十七冶集团有限公司 | A kind of no stake large span underground garage and its construction method |
| CN112726626A (en) * | 2020-12-25 | 2021-04-30 | 中国建筑第八工程局有限公司 | Method for stopping leakage between foundation pit retaining piles |
| CN113653083A (en) * | 2021-08-16 | 2021-11-16 | 北京市市政一建设工程有限责任公司 | Construction process of grouting waterproof curtain |
| CN114293566A (en) * | 2021-12-21 | 2022-04-08 | 中交二航局成都城市建设工程有限公司 | Enclosure construction method suitable for subway station auxiliary structure |
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Cited By (27)
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| CN103967002A (en) * | 2013-01-28 | 2014-08-06 | 深圳市勘察测绘院有限公司 | Occlusive pile construction method |
| CN103114609A (en) * | 2013-02-06 | 2013-05-22 | 上海市机械施工有限公司 | Connection device of new and old underground diaphragm walls and construction method |
| CN103114609B (en) * | 2013-02-06 | 2015-12-09 | 上海市机械施工集团有限公司 | Newly, the linkage of old diaphragm wall and construction method |
| CN104060613B (en) * | 2013-03-22 | 2016-04-20 | 上海市城市建设设计研究总院 | The directed slip casting structure of interlocking pile and interlocking pile directed grouting and reinforcing soil body method |
| CN104060613A (en) * | 2013-03-22 | 2014-09-24 | 上海市城市建设设计研究总院 | Directional secant pile grouting structure and directional secant pile grouting soil reinforcement method |
| CN103306277B (en) * | 2013-06-24 | 2016-04-20 | 北京市机械施工有限公司 | A kind of construction method utilizing rigid pile to embed Low Intensity Concrete Piles making compound water stop curtain |
| CN103306277A (en) * | 2013-06-24 | 2013-09-18 | 北京市机械施工有限公司 | Construction method for fabricating composite waterproof curtain by embedding rigid piles into low-strength concrete piles |
| CN103711136A (en) * | 2013-08-28 | 2014-04-09 | 中交二公局第一工程有限公司 | Deeply buried bearing platform curtain structure of bridge and process for constructing deeply buried bearing platform curtain structure |
| CN103711136B (en) * | 2013-08-28 | 2016-08-10 | 中交二公局第一工程有限公司 | The construction technology of bridge deep embeded type cushion cap curtain structure |
| CN103556646A (en) * | 2013-09-29 | 2014-02-05 | 河北钢铁集团矿业有限公司 | Method for forming water shutoff walls in sand and gravel layer |
| CN103556646B (en) * | 2013-09-29 | 2015-07-08 | 河北钢铁集团矿业有限公司 | Method for forming water shutoff walls in sand and gravel layer |
| CN103967015A (en) * | 2014-05-21 | 2014-08-06 | 刘绍国 | Water-stopping deep foundation pit excavation method and structure thereof |
| CN103967015B (en) * | 2014-05-21 | 2016-04-27 | 刘绍国 | A kind of water seal for deep foundation pit excavation method and structure thereof |
| CN104499495A (en) * | 2014-12-23 | 2015-04-08 | 中国建筑西南勘察设计研究院有限公司 | Waterproof curtain wall for foundation pit |
| CN105220700B (en) * | 2015-09-11 | 2018-04-17 | 中铁第四勘察设计院集团有限公司 | Foundation pit waterproof curtain reinforcement |
| CN105220700A (en) * | 2015-09-11 | 2016-01-06 | 中铁第四勘察设计院集团有限公司 | Foundation pit waterproof curtain reinforcement |
| CN106522253A (en) * | 2016-11-04 | 2017-03-22 | 四川共拓岩土科技股份有限公司 | Construction method for precise drilling and grouting on large-water-depth toe board |
| CN106592514A (en) * | 2016-12-09 | 2017-04-26 | 济南市市政工程有限公司 | Construction method of old city riverway piling wall integrated vertical type retaining wall |
| CN107587502A (en) * | 2017-09-23 | 2018-01-16 | 北京建材地质工程有限公司 | A kind of spiral-digging pore pressure pour water soil occlusion curtain pile construction method |
| CN108677981A (en) * | 2018-04-18 | 2018-10-19 | 中国十七冶集团有限公司 | A kind of discharge structure and its construction method of ultra-deep piping lane foundation pit |
| CN109322699A (en) * | 2018-09-29 | 2019-02-12 | 山东省地质矿产勘查开发局八0水文地质工程地质大队 | Pollution isolation blocking technology under a kind of mine |
| CN110185296A (en) * | 2019-05-31 | 2019-08-30 | 中国十七冶集团有限公司 | A kind of no stake large span underground garage and its construction method |
| CN112726626A (en) * | 2020-12-25 | 2021-04-30 | 中国建筑第八工程局有限公司 | Method for stopping leakage between foundation pit retaining piles |
| CN113653083A (en) * | 2021-08-16 | 2021-11-16 | 北京市市政一建设工程有限责任公司 | Construction process of grouting waterproof curtain |
| CN113653083B (en) * | 2021-08-16 | 2022-11-04 | 北京市市政一建设工程有限责任公司 | Construction process of grouting waterproof curtain |
| CN114293566A (en) * | 2021-12-21 | 2022-04-08 | 中交二航局成都城市建设工程有限公司 | Enclosure construction method suitable for subway station auxiliary structure |
| CN114293566B (en) * | 2021-12-21 | 2023-08-22 | 中交二航局成都城市建设工程有限公司 | Building envelope construction method suitable for subway station auxiliary structure |
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Application publication date: 20111221 |