CN101787718A - Casing construction method for reinforcing underground building and structure foundation - Google Patents
Casing construction method for reinforcing underground building and structure foundation Download PDFInfo
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- CN101787718A CN101787718A CN 201010108768 CN201010108768A CN101787718A CN 101787718 A CN101787718 A CN 101787718A CN 201010108768 CN201010108768 CN 201010108768 CN 201010108768 A CN201010108768 A CN 201010108768A CN 101787718 A CN101787718 A CN 101787718A
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Abstract
The invention discloses a casing construction method for reinforcing an underground building and structure foundation. The casing construction method comprises the steps of positioning, opening hole, placing a sleeve, constructing a pile foundation, recovering a casing, stopping water and sealing the pile. The invention can reinforce and construct the foundation without falling rain and stopping water. Compared with the prior art, the invention has convenient and flexible construction, not only keeps water and soil balance, but also effectively prevents underground high water level from upwards spraying and overflowing and greatly reduces damage to a base plate of an underground base plate; in addition, the invention has the advantages of lower construction cost, high project speed and high work efficiency and is especially suitable for reforming, reinforcing and correcting the existing basement and rescuing and reforming old buildings.
Description
Technical field
The present invention relates to construction of structures underpin technical field, especially a kind of casing construction method of reinforcing underground building and structure foundation.
Background technology
Demand along with China's development of economic construction and opening, some buildings that newly build up have to be seated on the bad place, in addition because purposes changes or function increases, to the transformation in old room with increase being on the increase of layer, these all require the foundation of structure building is reinforced.Statistics in the construction work accident that countries in the world take place, occupies the majority with the foundation accident according to investigations, and therefore, it is very essential in the quality accident of building foundation being reinforced, and also is very important.
At present, underground structure base is added intrinsic following several technical measures: reinforcing technique is widened on (1) basis; (2) reinforcing technique is deepened on the basis; (3) pile underpinning reinforcing technique; (4) foundation consolidating technology.Wherein be the technology of the reinforcing adopted in recent years with pile underpinning reinforcing technique and foundation consolidating technology, the effect that it is speedily carried out rescue work to general ground stabilization or correction is more remarkable, and its reinforcing technique has also obtained further raising and popularization.
But, to adopting pile underpinning reinforcing technique or foundation consolidating technology mainly to have following two problems in existing basement transformation, reinforcing, the stabilization works of rectifying a deviation and speedily carrying out rescue work: reason such as 1. big, that foundation ditch is dark owing to building area, carry out sealing, precipitation cost height; 2. because groundwater table decreasing causes existing building to sink, ftracture or surrounding enviroment are caused a devastating effect, can't adopt precipitation, sealing to construct.
Summary of the invention
The casing construction method that a kind of construction of structures underpin of providing at the deficiencies in the prior art is provided, be characterized in that this method comprises: locating holes, sleeve pipe placement, pile foundation construction, recovery of casing and the stake of sealing envelope, concrete construction is undertaken by following step:
A, locating holes
The position, hole that requires to determine the sub basement base plate is reinforced in construction of structures under the base area, position, hole by the sub basement base plate, make the position, hole of upper strata basement bottom board and determine the rig position by axis, adopt then and manually punching the perforate of each layer base plate to bed course, the diameter of perforate is decided with the pile foundation of underpin, and position, upper and lower hole horizontal error is less than 10mm;
B, sleeve pipe are placed
Sleeve pipe is inserted into sub basement base plate and bed course in basement bottom board hole, upper strata, the interface to sleeve pipe and bed course carries out interim sealing processing then, and each sleeve pipe adopts flange to connect;
C, pile foundation construction
In sleeve pipe, adopt the rig pile, the vertical pile of drilling rod, angular deviation＜1 °, the pile degree of depth is pressed design length;
D, recovery of casing
Recovery of casing behind the pile, and to each layer base plate sealing of hole is carried out in perforate;
E, the stake of sealing envelope
Pile foundation behind the pile is in time carried out sealing, the envelope stake, at first drainage tube is squeezed into bed course before the envelope stake, drainage tube adopts steel pipe to be symmetricly set in the pile foundation and inserts reserved steel bar, drainage tube enters bed course 〉=500mm, build half-dried rigid microdilatancy waterproof concrete then, it builds thickness is 1/2 of sub basement base plate thickness, the waterproof concrete strength is than the high one-level of bottom board concrete intensity, cut after the drainage tube ejection for water plugging, drainage tube after the cutting and the waterproof concrete isoplanar of building, place microdilatancy rubber seal ring at last, build half-dried rigid microdilatancy waterproof concrete to the same absolute altitude of lower floor's base plate.
The present invention does not need to carry out precipitation, sealing construction, compared with prior art has easy construction and flexible, balance not only conserves water and soil, prevented spray, excessive on the underground high water level effectively, significantly reduced the destruction to basement bottom board, and construction cost is lower, programming is fast, high efficiency especially is fit to using in existing basement transformation, reinforcing, the old building renovation of rectifying a deviation and speedily carry out rescue work.
Description of drawings
Accompanying drawing 1 is the invention process illustration
Accompanying drawing 2 is sealing envelope stake schematic diagram of the present invention
The specific embodiment
Consult accompanying drawing 1, the present invention includes: sleeve pipe placement, pile foundation construction, recovery of casing and the stake of sealing envelope, concrete construction is undertaken by following step:
A, locating holes
Reinforce the position, hole that requires to determine sub basement base plate 3 according to underground structure, position, hole by sub basement base plate 3, make the position, hole of last layer basement bottom board 2 and the position of definite rotary jetting apparatus 1 by axis, adopt then and manually punching the perforate of each layer base plate to bed course 4, the diameter of perforate is decided with the pile foundation 8 of underpin, and position, upper and lower hole horizontal error is less than 10mm;
B, sleeve pipe are placed
Sleeve pipe 5 from inserting in upper strata basement bottom board 2 holes through sub basement base plate 3 to orlop basement bottom board 3 and bed course 4, is carried out interim sealing to the interface of sleeve pipe 5 and bed course 4 with sealing material 7 then and handles, and each sleeve pipe 5 adopts flanges connections.
The construction of c, reinforcing pile foundation
In sleeve pipe 5, adopt rig 1 high pressure jet grouting to become pile foundation 8, drilling rod 6 vertical pore-formings, angular deviation＜1 °, depth of pore forming press design length, injection grouting pressure＞25MPa, flow rate of grouting＞30L/min, hoisting velocity＜20cm/min holes;
D, recovery of casing
High pressure jet grouting becomes pile foundation 8 back recoveries of casing 5, and sealing of hole is carried out in perforate to each layer base plate.
E, the stake of sealing envelope
The present invention especially is fit to have built underground structure and exists the old building renovation of artesian water, function to change, increase layer increment of load and foundation inefficacy, is the reinforcing technique of a kind of safety, economy, easy construction.
Claims (1)
1. the casing construction method of a reinforcing underground building and structure foundation is characterized in that this method comprises: locating holes, sleeve pipe placement, pile foundation construction, recovery of casing and the stake of sealing envelope, and concrete construction is undertaken by following step:
A, locating holes
The position, hole that requires to determine the sub basement base plate is reinforced in construction of structures under the base area, position, hole by the sub basement base plate, make the position, hole of upper strata basement bottom board and determine the rig position by axis, adopt then and manually punching the perforate of each layer base plate to bed course, the diameter of perforate is decided with the pile foundation of underpin, and position, upper and lower hole horizontal error is less than 10mm;
B, sleeve pipe are placed
Sleeve pipe is inserted into sub basement base plate and bed course in basement bottom board hole, upper strata, the interface to sleeve pipe and bed course carries out interim sealing processing then, and each sleeve pipe adopts flange to connect;
C, pile foundation construction
In sleeve pipe, adopt the rig pile, the vertical pore-forming of drilling rod, angular deviation＜1 °, depth of pore forming is pressed design length;
D, recovery of casing
Recovery of casing behind the pile, and to each layer base plate sealing of hole is carried out in perforate;
E, the stake of sealing envelope
Pile foundation behind the pile is in time carried out sealing, envelope stake, at first drainage tube is squeezed into bed course before the envelope stake, drainage tube adopts steel pipe to be symmetricly set in the pile foundation and inserts reserved steel bar, drainage tube enters bed course 〉=500mm, build half-dried rigid microdilatancy waterproof concrete then, it builds thickness is 1/2 of sub basement base plate thickness, the high one-level of strength ratio bottom board concrete intensity, cut after the drainage tube ejection for water plugging, drainage tube after the cutting and the waterproof concrete isoplanar of building, place microdilatancy rubber seal ring at last, build half-dried rigid microdilatancy waterproof concrete to the same absolute altitude of lower floor's base plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101087682A CN101787718B (en) | 2010-02-10 | 2010-02-10 | Casing construction method for reinforcing underground building and structure foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101087682A CN101787718B (en) | 2010-02-10 | 2010-02-10 | Casing construction method for reinforcing underground building and structure foundation |
Publications (2)
| Publication Number | Publication Date |
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| CN101787718A true CN101787718A (en) | 2010-07-28 |
| CN101787718B CN101787718B (en) | 2011-08-17 |
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| CN2010101087682A Active CN101787718B (en) | 2010-02-10 | 2010-02-10 | Casing construction method for reinforcing underground building and structure foundation |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102926409A (en) * | 2011-08-09 | 2013-02-13 | 上海建工五建集团有限公司 | Construction method for preventing water and soil loss |
| CN103205988A (en) * | 2013-03-22 | 2013-07-17 | 中交四航工程研究院有限公司 | Device suitable for mending and strengthening underwater portion of pile foundation and construction method employing device |
| CN105735331A (en) * | 2016-03-21 | 2016-07-06 | 上海长凯岩土工程有限公司 | Grouting reinforcement construction method for underground engineering |
| CN106284310A (en) * | 2015-05-21 | 2017-01-04 | 中天建设集团有限公司 | In the case of a kind of big flow water, stake holes is drawn water drain envelope pile construction method |
| CN106931240A (en) * | 2015-12-29 | 2017-07-07 | 中国二十冶集团有限公司 | Perforate method for waterproofing after waterproof construction |
| CN109083151A (en) * | 2018-08-15 | 2018-12-25 | 庐江荣睿建设工程有限公司 | A kind of stratum pre-reinforcement processing method of basement construction |
| CN109440763A (en) * | 2018-12-19 | 2019-03-08 | 上海市基础工程集团有限公司 | Bored pile construction method below existing building |
| CN109610442A (en) * | 2018-12-19 | 2019-04-12 | 五冶集团上海有限公司 | Constructing device and its methods and applications after a kind of basement wet spraying pile |
| CN109667294A (en) * | 2017-10-17 | 2019-04-23 | 上海宝冶集团有限公司 | The casing gushed on anti-underground water in basement bored pile construction and pile-driving method |
| CN111236219A (en) * | 2020-01-14 | 2020-06-05 | 中煤江南建设发展有限公司 | Construction method for re-expanding basement pile |
| CN111997035A (en) * | 2020-09-04 | 2020-11-27 | 广州市大新特种建筑新技术开发有限公司 | Construction method for newly added steel pipe pile of high-water-level basement |
| CN112878363A (en) * | 2021-01-18 | 2021-06-01 | 中国建筑第八工程局有限公司 | Construction method for post-pile-filling of existing basement structure |
Families Citing this family (1)
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| CN111155782A (en) * | 2020-01-06 | 2020-05-15 | 中建三局集团有限公司 | High-water-level existing basement pile foundation construction method |
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| JP2004068446A (en) * | 2002-08-07 | 2004-03-04 | Arai Gumi Ltd | Existing pile investigating method and existing pile reinforcing method |
| KR20040034650A (en) * | 2004-03-27 | 2004-04-28 | 주식회사 엠티마스타 | The fiber complex foam for underwater file reinforcement, and it's construction method |
| CN1888331A (en) * | 2006-07-28 | 2007-01-03 | 谭新平 | Guide pit type manual pot holing pile reinforing and underpinning method for building foundation and composite supporting pile |
| CN101550693A (en) * | 2009-05-06 | 2009-10-07 | 中国土木工程集团有限公司 | Method for reinforcing base with bored pile in the underground structure of high groundwater level |
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2010
- 2010-02-10 CN CN2010101087682A patent/CN101787718B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004068446A (en) * | 2002-08-07 | 2004-03-04 | Arai Gumi Ltd | Existing pile investigating method and existing pile reinforcing method |
| KR20040034650A (en) * | 2004-03-27 | 2004-04-28 | 주식회사 엠티마스타 | The fiber complex foam for underwater file reinforcement, and it's construction method |
| CN1888331A (en) * | 2006-07-28 | 2007-01-03 | 谭新平 | Guide pit type manual pot holing pile reinforing and underpinning method for building foundation and composite supporting pile |
| CN101550693A (en) * | 2009-05-06 | 2009-10-07 | 中国土木工程集团有限公司 | Method for reinforcing base with bored pile in the underground structure of high groundwater level |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102926409B (en) * | 2011-08-09 | 2015-10-28 | 上海建工五建集团有限公司 | A kind of construction method prevented erosion |
| CN102926409A (en) * | 2011-08-09 | 2013-02-13 | 上海建工五建集团有限公司 | Construction method for preventing water and soil loss |
| CN103205988A (en) * | 2013-03-22 | 2013-07-17 | 中交四航工程研究院有限公司 | Device suitable for mending and strengthening underwater portion of pile foundation and construction method employing device |
| CN103205988B (en) * | 2013-03-22 | 2015-04-29 | 中交四航工程研究院有限公司 | Construction method for device suitable for mending and strengthening underwater portion of pile foundation |
| CN106284310B (en) * | 2015-05-21 | 2018-06-15 | 中天建设集团有限公司 | Stake holes, which is drawn water, in the case of a kind of big flow water drains envelope pile construction method |
| CN106284310A (en) * | 2015-05-21 | 2017-01-04 | 中天建设集团有限公司 | In the case of a kind of big flow water, stake holes is drawn water drain envelope pile construction method |
| CN106931240A (en) * | 2015-12-29 | 2017-07-07 | 中国二十冶集团有限公司 | Perforate method for waterproofing after waterproof construction |
| CN105735331A (en) * | 2016-03-21 | 2016-07-06 | 上海长凯岩土工程有限公司 | Grouting reinforcement construction method for underground engineering |
| CN105735331B (en) * | 2016-03-21 | 2018-02-23 | 上海长凯岩土工程有限公司 | A kind of underground engineering construction method for grouting reinforcement |
| CN109667294A (en) * | 2017-10-17 | 2019-04-23 | 上海宝冶集团有限公司 | The casing gushed on anti-underground water in basement bored pile construction and pile-driving method |
| CN109083151A (en) * | 2018-08-15 | 2018-12-25 | 庐江荣睿建设工程有限公司 | A kind of stratum pre-reinforcement processing method of basement construction |
| CN109440763A (en) * | 2018-12-19 | 2019-03-08 | 上海市基础工程集团有限公司 | Bored pile construction method below existing building |
| CN109610442A (en) * | 2018-12-19 | 2019-04-12 | 五冶集团上海有限公司 | Constructing device and its methods and applications after a kind of basement wet spraying pile |
| CN111236219A (en) * | 2020-01-14 | 2020-06-05 | 中煤江南建设发展有限公司 | Construction method for re-expanding basement pile |
| CN111997035A (en) * | 2020-09-04 | 2020-11-27 | 广州市大新特种建筑新技术开发有限公司 | Construction method for newly added steel pipe pile of high-water-level basement |
| CN112878363A (en) * | 2021-01-18 | 2021-06-01 | 中国建筑第八工程局有限公司 | Construction method for post-pile-filling of existing basement structure |
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| CN101787718B (en) | 2011-08-17 |
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