CN103498486A - Method for blocking post-cast strip downcast pipe well through sleeve pipe - Google Patents
Method for blocking post-cast strip downcast pipe well through sleeve pipe Download PDFInfo
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- CN103498486A CN103498486A CN201310485842.6A CN201310485842A CN103498486A CN 103498486 A CN103498486 A CN 103498486A CN 201310485842 A CN201310485842 A CN 201310485842A CN 103498486 A CN103498486 A CN 103498486A
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Abstract
The invention discloses a method for blocking a post-cast strip downcast pipe well through a sleeve pipe. The method comprises the following steps that a) the sleeve pipe and a seal cover are prefabricated; b) the sleeve pipe are pre-buried; c) a waterproof layer is arranged between the outer side of the sleeve pipe and a post-cast strip; d) post-cast strip concrete pouring construction is carried out; e) post-cast strip concrete curing is carried out; f) downcast pipe well blocking is carried out; g) expansive concrete curing is carried out; h) the seal cover is disassembled. According to the method, bottom plate post-cast strip construction and downcast pipe well blocking can be completed in two procedures, the difficulty of post-cast strip construction and downcast pipe well blocking construction is lowered, the method has the advantages of being simple in construction and good in blocking effect, and the probability of bottom plate post-cast strip leakage is greatly lowered.
Description
Technical field
The present invention relates to the antiseep shutoff of field of engineering building basement post-pouring zone, especially a kind of sleeve pipe that adopts is implemented the method for shutoff to ater-casting precipitation pipe well.
Background technology
In the concrete construction of basement post-pouring zone, because method is improper or technique is unreasonable, cause the phenomenon of basement leakage that generation is often arranged.According to relevant statistics, dealing with because of positions such as ater-casting, constuction joints the defect of leaking caused improperly accounts for more than 75%.Therefore, the construction quality of basement bottom plate rear pouring tape is the key that prevents basement leakage, and drainage problem falls in an important step before the construction of ater-casting exactly.Before the bottom plate rear pouring tape cast, the basic lowest order in engineering, groundwater pressure is naturally larger, the base plate surface water all converges in ater-casting, if do not taked effective treatment measures, in band inner concrete casting process, ponding will make the cement paste in concrete run off in a large number, cause concrete intensity and anti-permeability performance to reduce.Prior art adopts the water discharge method that the precipitation pipe well is set in ater-casting, and ater-casting and precipitation pipe well are poured into a mould simultaneously to the technique of shutoff, the problem existed is, under or environment that groundwater pressure is higher large at underground water yield, at one time in, complete the shutoff to basement post-pouring zone construction and precipitation pipe well, difficulty of construction is very big, construction quality be difficult for to guarantee, after water expansive concrete and easily stay leakage passage in the constuction joint position, and leakage passage is difficult to post-processed.
Summary of the invention
A kind of sleeve pipe that adopts that the objective of the invention is to provide for the deficiencies in the prior art is implemented the method for shutoff to ater-casting precipitation pipe well, the present invention is applicable to be provided with the shutoff of the basement post-pouring zone enforcement of precipitation pipe well to the precipitation pipe well, especially under large at underground water yield or environment that groundwater pressure is higher, the shutoff of bottom plate rear pouring tape construction and precipitation pipe well can be divided into to two procedures completes, reduced the difficulty of ater-casting construction and precipitation pipe well plugging construction, there is construction simple, the advantage that plugging effect is good, and significantly reduced the probability of bottom plate rear pouring tape seepage.
The concrete technical scheme that realizes the object of the invention is:
A kind of sleeve pipe that adopts is implemented the method for shutoff to ater-casting precipitation pipe well, the method is for the shutoff of the basement post-pouring zone and the precipitation pipe well that are provided with the precipitation pipe well, and its characteristics comprise the steps:
A), prefabricated sleeve pipe and seal closure
Prefabricated sleeve pipe, described sleeve pipe is the conical tubular that steel plate is curling, and its outside suitable for reading is provided with flange and bolt, on the inside and outside wall in the middle part of sleeve pipe, is respectively equipped with annular seal ring, sleeve outer wall is provided with several bars anchor pin, and described sleeve pipe appearance and size is: the external diameter of going to the bottom: φ 600～800mm; External diameter suitable for reading: φ 400～600mm; Wall thickness: 8mm; Highly: 900～1800 mm;
Prefabricated seal closure, the disk that described seal closure is the steel plate cutting, which is provided with the bolt hole corresponding with flange plate bolt;
B), service sleeve
Before the pouring concrete of ater-casting, press working drawing at the aboveground side's service sleeve of downcomer; Choose the sleeve pipe external diameter of going to the bottom and be greater than the external diameter 100～120mm of precipitation pipe well; Fill up waterproofing mortar in precipitation pipe well periphery, the sleeve pipe mouth of pipe of going to the bottom is inserted in the waterproofing mortar of precipitation pipe well periphery to insertion depth 150～200mm; Space between sleeve pipe and precipitation pipe well is filled out dead and treated that waterproofing mortar is fixed with waterproofing mortar, between the sleeve pipe installation period, should keep the water pump in the precipitation pipe well to implement normal pumping, and the outlet pipe of water pump is drawn by the suitable for reading of sleeve pipe, the service sleeve operation completes;
C), between outside of sleeve and ater-casting, waterproofing course is set
The twice coil waterproof layer is set between outside of sleeve periphery and ater-casting, be wrapped in outside of sleeve coil waterproof layer on turn over and highly be greater than 250mm;
D), ater-casting pouring concrete construction
Colligation baseplate reinforcing bar in ater-casting, implement the ater-casting pouring concrete construction with expansive concrete, in the concrete vibrating process, will avoid sleeve pipe, to the concrete around sleeve pipe, should take laminated pouring, symmetrical form of construction work of gently smashing;
E), ater-casting concrete curing
The ater-casting concrete is implemented to maintenance, and curing time, be greater than 14 days;
F), the shutoff of precipitation pipe well
The shutoff basis of time engineering actual progress of precipitation pipe well and determining; Before shutoff, at first fast the water in sleeve pipe and precipitation pipe well is drained, remove water pump; And graded sand and stone and dry cement are alternately inserted in sleeve pipe and precipitation pipe well, while being filled to apart from downcomer mouth of pipe 150mm, build expansive concrete, until sleeve pipe is suitable for reading; Seal closure is covered on the flange suitable for reading at sleeve pipe, and through bolt, that seal closure and sleeve pipe is fastening;
G), expansive concrete maintenance
Expansive concrete is implemented to maintenance, and curing time, be greater than 14 days;
H), seal closure is removed
Maintenance is dismountable seal closure after expiring, and according to the elevation design of floor structure, excision exceeds sleeve pipe and the expansive concrete of terrace part, completes the terrace surface construction.
The present invention is applicable to be provided with the shutoff of the basement post-pouring zone enforcement of precipitation pipe well to the precipitation pipe well, especially under large at underground water yield or environment that groundwater pressure is higher, the shutoff of bottom plate rear pouring tape construction and precipitation pipe well can be divided into to two procedures completes, reduced the difficulty of ater-casting construction and precipitation pipe well plugging construction, have advantages of that construction is simple, plugging effect is good, and significantly reduced the probability of bottom plate rear pouring tape seepage.
The accompanying drawing explanation
Fig. 1 is enforcement view of the present invention.
The specific embodiment
Consult Fig. 1, the present invention includes following steps:
A), prefabricated sleeve pipe and seal closure
Prefabricated sleeve pipe 1, described sleeve pipe 1 is the conical tubular that steel plate is curling, its outside suitable for reading is provided with flange and bolt 11, be respectively equipped with annular seal ring 12 on the inside and outside wall in the middle part of sleeve pipe, sleeve outer wall is provided with several bars anchor pin 13, and described sleeve pipe 1 appearance and size is: the external diameter of going to the bottom: φ 600～800mm; External diameter suitable for reading: φ 400～600mm; Wall thickness: 8mm; Highly: 900～1800 mm;
Prefabricated seal closure 2, described seal closure 2, for the disk of steel plate cutting, which is provided with the bolt hole corresponding with flange plate bolt 21;
B), service sleeve
Before the pouring concrete of ater-casting, press working drawing service sleeve 1 above precipitation pipe well 4; Choose external diameter 100～120mm that external diameter that sleeve pipe 1 goes to the bottom is greater than precipitation pipe well 4; Fill up waterproofing mortar 3 in precipitation pipe well 4 peripheries, sleeve pipe 1 mouth of pipe of going to the bottom is inserted in the waterproofing mortar 3 of precipitation pipe well 4 peripheries to insertion depth 150～200mm; Space between sleeve pipe 1 and precipitation pipe well 4 is filled out dead and treated that waterproofing mortar 3 is fixed with waterproofing mortar 3, between sleeve pipe 1 installation period, should keep the water pump in precipitation pipe well 4 to implement normal pumping, and the outlet pipe of water pump is drawn by the suitable for reading of sleeve pipe 1, service sleeve 1 operation completes;
C), between outside of sleeve and ater-casting, waterproofing course is set
Between sleeve pipe 1 outer periphery and ater-casting, twice coil waterproof layer 5 is set, be wrapped in sleeve pipe 1 outside coil waterproof layer 5 on turn over and highly be greater than 250mm;
D), ater-casting pouring concrete construction
Colligation baseplate reinforcing bar in ater-casting, implement the ater-casting pouring concrete construction with expansive concrete, in the concrete vibrating process, will avoid sleeve pipe 1, to the concrete around sleeve pipe 1, should take laminated pouring, symmetrical form of construction work of gently smashing;
E), ater-casting concrete curing
The ater-casting concrete is implemented to maintenance, and curing time, be greater than 14 days;
F), the shutoff of precipitation pipe well
The shutoff basis of time engineering actual progress of precipitation pipe well 4 and determining; Before shutoff, at first fast the water in sleeve pipe 1 and precipitation pipe well 4 is drained, remove water pump; And graded sand and stone and dry cement are alternately inserted in sleeve pipe 1 and precipitation pipe well 4, while being filled to apart from downcomer mouth of pipe 150mm, build expansive concrete, until sleeve pipe 1 is suitable for reading; Seal closure 2 is covered on the flange suitable for reading at sleeve pipe 1, and through bolt 11, that seal closure 2 and sleeve pipe 1 is fastening;
G), expansive concrete maintenance
Expansive concrete is implemented to maintenance, and curing time, be greater than 14 days;
H), seal closure is removed
Maintenance is dismountable seal closure 2 after expiring, and according to the elevation design of floor structure, excision exceeds sleeve pipe 1 and the expansive concrete of terrace part, completes the terrace surface construction.
The present invention is in the pouring concrete construction process of ater-casting or in the plugging construction process of precipitation pipe well, there is the underground water of part ater-casting can be trapped on the outer wall of sleeve pipe 1 or the underground water in precipitation pipe well 4 can be trapped on the inwall of sleeve pipe 1, well and can upwards extruding along casing wall when pouring concrete, affect the combination of concrete and casing wall, the present invention is respectively equipped with annular seal ring 12 on the inside and outside wall in the middle part of sleeve pipe 1, upwards extrude along casing wall for blocking underground water, guaranteed effective combination of concrete and casing wall.
The present invention arranges several bars anchor pin 13 on sleeve pipe 1 outer wall, to strengthen the adhesion of sleeve pipe 1 and late poured band.
Embodiment:
The concrete implementation step of the present invention is as follows:
A), prefabricated sleeve pipe and seal closure
Prefabricated sleeve pipe, described sleeve pipe is the conical tubular that steel plate is curling, and its outside suitable for reading is provided with flange and bolt, on the inside and outside wall in the middle part of sleeve pipe, is respectively equipped with annular seal ring, sleeve outer wall is provided with several bars anchor pin, and described sleeve pipe appearance and size is: the external diameter of going to the bottom: φ 800mm; External diameter suitable for reading: φ 600mm; Wall thickness: 8mm; Highly: 1500 mm;
Prefabricated seal closure, the disk that described seal closure is the steel plate cutting, which is provided with the bolt hole corresponding with flange plate bolt;
B), service sleeve
Before the pouring concrete of ater-casting, press working drawing at the aboveground side's service sleeve of downcomer; The external diameter of precipitation pipe well: φ 680mm; Fill up waterproofing mortar in precipitation pipe well periphery, the sleeve pipe mouth of pipe of going to the bottom is inserted in the waterproofing mortar of precipitation pipe well periphery to insertion depth 180～200mm; Space between sleeve pipe and precipitation pipe well is filled out dead and treated that waterproofing mortar is fixed with waterproofing mortar, between the sleeve pipe installation period, should keep the water pump in the precipitation pipe well to implement normal pumping, and the outlet pipe of water pump is drawn by the suitable for reading of sleeve pipe, the service sleeve operation completes;
C), between outside of sleeve and ater-casting, waterproofing course is set
The twice coil waterproof layer is set between outside of sleeve periphery and ater-casting, be wrapped in outside of sleeve coil waterproof layer on turn over and highly be greater than 250mm;
D), ater-casting pouring concrete construction
Colligation baseplate reinforcing bar in ater-casting, implement the ater-casting pouring concrete construction with expansive concrete, in the concrete vibrating process, will avoid sleeve pipe, to the concrete around sleeve pipe, should take laminated pouring, symmetrical form of construction work of gently smashing;
E), ater-casting concrete curing
The ater-casting concrete is implemented to maintenance, and curing time, be greater than 14 days;
F), the shutoff of precipitation pipe well
The shutoff basis of time engineering actual progress of precipitation pipe well and determining; Before shutoff, at first fast the water in sleeve pipe and precipitation pipe well is drained, remove water pump; And graded sand and stone and dry cement are alternately inserted in sleeve pipe and precipitation pipe well, while being filled to apart from downcomer mouth of pipe 150mm, build expansive concrete, until sleeve pipe is suitable for reading; Seal closure is covered on the flange suitable for reading at sleeve pipe, and through bolt, that seal closure and sleeve pipe is fastening;
G), expansive concrete maintenance
Expansive concrete is implemented to maintenance, and curing time, be greater than 14 days;
H), seal closure is removed
Maintenance is dismountable seal closure after expiring, and according to the elevation design of floor structure, excision exceeds sleeve pipe and the expansive concrete of terrace part, completes the terrace surface construction.
Claims (1)
1. one kind adopts sleeve pipe ater-casting precipitation pipe well to be implemented to the method for shutoff, and the method, for the shutoff of the basement post-pouring zone and the precipitation pipe well that are provided with the precipitation pipe well, is characterized in that it comprises the steps:
A), prefabricated sleeve pipe and seal closure
Prefabricated sleeve pipe, described sleeve pipe is the conical tubular that steel plate is curling, and its outside suitable for reading is provided with flange and bolt, on the inside and outside wall in the middle part of sleeve pipe, is respectively equipped with annular seal ring, sleeve outer wall is provided with several bars anchor pin, and described sleeve pipe appearance and size is: the external diameter of going to the bottom: φ 600～800mm; External diameter suitable for reading: φ 400～600mm; Wall thickness: 8mm; Highly: 900～1800 mm;
Prefabricated seal closure, the disk that described seal closure is the steel plate cutting, which is provided with the bolt hole corresponding with flange plate bolt;
B), service sleeve
Before the pouring concrete of ater-casting, press working drawing at the aboveground side's service sleeve of downcomer; Choose the sleeve pipe external diameter of going to the bottom and be greater than the external diameter 100～120mm of precipitation pipe well; Fill up waterproofing mortar in precipitation pipe well periphery, the sleeve pipe mouth of pipe of going to the bottom is inserted in the waterproofing mortar of precipitation pipe well periphery to insertion depth 150～200mm; Space between sleeve pipe and precipitation pipe well is filled out dead and treated that waterproofing mortar is fixed with waterproofing mortar, between the sleeve pipe installation period, should keep the water pump in the precipitation pipe well to implement normal pumping, and the outlet pipe of water pump is drawn by the suitable for reading of sleeve pipe, the service sleeve operation completes;
C), between outside of sleeve and ater-casting, waterproofing course is set
The twice coil waterproof layer is set between outside of sleeve periphery and ater-casting, be wrapped in outside of sleeve coil waterproof layer on turn over and highly be greater than 250mm;
D), ater-casting pouring concrete construction
Colligation baseplate reinforcing bar in ater-casting, implement the ater-casting pouring concrete construction with expansive concrete, in the concrete vibrating process, will avoid sleeve pipe, to the concrete around sleeve pipe, should take laminated pouring, symmetrical form of construction work of gently smashing;
E), ater-casting concrete curing
The ater-casting concrete is implemented to maintenance, and curing time, be greater than 14 days;
F), the shutoff of precipitation pipe well
The shutoff basis of time engineering actual progress of precipitation pipe well and determining; Before shutoff, at first fast the water in sleeve pipe and precipitation pipe well is drained, remove water pump; And graded sand and stone and dry cement are alternately inserted in sleeve pipe and precipitation pipe well, while being filled to apart from downcomer mouth of pipe 150mm, build expansive concrete, until sleeve pipe is suitable for reading; Seal closure is covered on the flange suitable for reading at sleeve pipe, and through bolt, that seal closure and sleeve pipe is fastening;
G), expansive concrete maintenance
Expansive concrete is implemented to maintenance, and curing time, be greater than 14 days;
H), seal closure is removed
Maintenance is dismountable seal closure after expiring, and according to the elevation design of floor structure, excision exceeds sleeve pipe and the expansive concrete of terrace part, completes the terrace surface construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310485842.6A CN103498486B (en) | 2013-10-17 | 2013-10-17 | A kind of sleeve pipe that adopts implements the method for shutoff to ater-casting precipitation pipe well |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310485842.6A CN103498486B (en) | 2013-10-17 | 2013-10-17 | A kind of sleeve pipe that adopts implements the method for shutoff to ater-casting precipitation pipe well |
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| CN103498486A true CN103498486A (en) | 2014-01-08 |
| CN103498486B CN103498486B (en) | 2015-12-09 |
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| CN201310485842.6A Expired - Fee Related CN103498486B (en) | 2013-10-17 | 2013-10-17 | A kind of sleeve pipe that adopts implements the method for shutoff to ater-casting precipitation pipe well |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089098A (en) * | 2014-06-27 | 2014-10-08 | 中国十九冶集团（防城港）设备结构有限公司 | Flexible waterproof sleeve |
| CN104264700A (en) * | 2014-10-09 | 2015-01-07 | 安徽华力建设集团有限公司 | Seepage prevention construction method for light-weight precipitation well point post-cast strip of underground construction |
| CN105178364A (en) * | 2015-06-29 | 2015-12-23 | 江苏五环建设有限公司 | Underground building light precipitation well point post-cast strip anti-seepage construction method |
| CN108558439A (en) * | 2018-04-17 | 2018-09-21 | 中国冶集团有限公司 | A kind of early curing device and method of cast-in-place concrete metope |
| CN109653228A (en) * | 2019-01-25 | 2019-04-19 | 沙俊强 | A kind of underwater composite water-stop casing bit |
| CN111535252A (en) * | 2020-06-05 | 2020-08-14 | 长江勘测规划设计研究有限责任公司 | Grouting hole sealing structure of concrete faced rockfill dam and construction method of grouting hole sealing structure |
| CN113445609A (en) * | 2021-07-13 | 2021-09-28 | 中国建筑第四工程局有限公司 | Well chamber prefabricated by municipal rainwater and sewage and well chamber pipe orifice plugging construction method |
| CN114687322A (en) * | 2022-05-10 | 2022-07-01 | 中国电建集团成都勘测设计研究院有限公司 | Plugging device and method suitable for quickly plugging parabolic hole of vertical shaft gate chamber |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104089098A (en) * | 2014-06-27 | 2014-10-08 | 中国十九冶集团（防城港）设备结构有限公司 | Flexible waterproof sleeve |
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| CN108558439A (en) * | 2018-04-17 | 2018-09-21 | 中国冶集团有限公司 | A kind of early curing device and method of cast-in-place concrete metope |
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| CN109653228A (en) * | 2019-01-25 | 2019-04-19 | 沙俊强 | A kind of underwater composite water-stop casing bit |
| CN111535252A (en) * | 2020-06-05 | 2020-08-14 | 长江勘测规划设计研究有限责任公司 | Grouting hole sealing structure of concrete faced rockfill dam and construction method of grouting hole sealing structure |
| CN113445609A (en) * | 2021-07-13 | 2021-09-28 | 中国建筑第四工程局有限公司 | Well chamber prefabricated by municipal rainwater and sewage and well chamber pipe orifice plugging construction method |
| CN114687322A (en) * | 2022-05-10 | 2022-07-01 | 中国电建集团成都勘测设计研究院有限公司 | Plugging device and method suitable for quickly plugging parabolic hole of vertical shaft gate chamber |
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Granted publication date: 20151209 Termination date: 20161017 |