CN1888329A - Open caisson structure construction method - Google Patents
Open caisson structure construction method Download PDFInfo
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- CN1888329A CN1888329A CN 200610200761 CN200610200761A CN1888329A CN 1888329 A CN1888329 A CN 1888329A CN 200610200761 CN200610200761 CN 200610200761 CN 200610200761 A CN200610200761 A CN 200610200761A CN 1888329 A CN1888329 A CN 1888329A
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- well
- protecting wall
- open caisson
- tie beam
- collar tie
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Abstract
The present invention relates to a construction method of sunk well structure. Said construction method includes the following steps: firstly, prospecting and selecting the position of sinking well; placing reinforcing cage, building ring beam of reinforced concrete, after the concrete ring beam is solidified and reached to a preset strength, continuously downwards excavating in the interior of said ring beam, removing partial earth body from ring beam interior and bottom portion to make the ring beam be uniformly downwards sunk; on the ring beam building well-protecting wall, after the well-protecting wall is reached to preset strength, removing earth body from well interior and well-protecting wall bottom portion to make the well-protecting wall be continuously sunk; continuously building well-protecting wall until the depth of the sunk well is reached to requirements; finally building well edge until the well is formed.
Description
(1) technical field
The present invention relates to a kind of job practices of building.
(2) background technology
The job practices of tradition open caisson structure has following steps: a, select the address of open caisson through exploration; B, dig pit in the place of need well-diggings and to fetch earth; C, brick and mortar are transported in the well; D, build well body, well by laying bricks or stones from bottom to top, until completion.Its shortcoming is that the duration is longer, and cost is higher, and well body difficult quality guarantee, usually repeats to do manual work, and constructor's personal safety can not get ensureing.During shoveling, because soil property is softer or underground water is gushed out, the borehole wall is very easy to landslide, and the workman is dangerous at downhole operation, has occurred the workman is embedded in the down-hole by landslide major accident.Especially when soft foundation, phreatic high ground or coastal sandy subgrade drilling well, wellhole shaping difficulty is bigger, becomes the difficult problem of engineering construction.
(3) content of the present invention
The invention provides a kind of job practices of open caisson structure, the borehole wall that solve soft foundation, phreatic high ground or coastal sandy subgrade easily subsides, the construction period is long, time-consuming, the workman constructs unsafe technical problem.
Technical scheme of the present invention, the job practices of this open caisson structure is characterized in that following steps are arranged:
A, select the position of open caisson through exploration;
B, place reinforcing cage, break the collar tie beam of steel concrete;
C, treat that the concrete collar tie beam solidifies and reaches predetermined strength after, dig under in collar tie beam, continuing, take away in the collar tie beam and the part soil body of bottom, collar tie beam is evenly sunk;
D, on collar tie beam, build well-protecting wall by laying bricks or stones;
E, treat that well-protecting wall reaches predetermined strength after, take away in the well and the well-protecting wall bottom soil body, well-protecting wall is evenly sunk;
F, continue to build by laying bricks or stones well-protecting wall, repeating step e reaches requirement up to the degree of depth of open caisson;
G, build the well by laying bricks or stones at last, until Cheng Jing.
In step b, also can dig an annular ditch groove earlier, in groove, place reinforcing cage, break the collar tie beam of steel concrete.
In step c, the collar tie beam height is a 0.7-1.0 rice, and bore is a 0.5-1.5 rice.
In step c, e, take the method for the soil body away and can select mechanical execution, artificial construction or half mechanical half artificial construction.
In steps d, well-protecting wall can be concrete well-protecting wall or masonry well-protecting wall.
In step g, the well can be concrete well edge or masonry well.
Beneficial effect of the present invention: open caisson section construction method of the present invention is on probation in the coastal area, and none subsides the well body, and the duration shortens, and the open caisson quality is guaranteed, and construction cost is not high, has obtained good effect.The down-hole construction safety is guaranteed, and the shaft bottom has collar tie beam, the borehole wall that well-protecting wall is arranged, and the workman does not worry that the landslide of well body is buried, and has avoided engineering accident, has ensured constructor's personal safety.Compare with traditional method of digging a well, can play a multiplier role.Solved soft foundation dig a well easily collapse the hole, pound people's problem, the construction period is shorter, the saving of labor, saves time, and is particularly useful for soft foundation, phreatic high ground or coastal sand soil ground Cheng Jing.
(4) description of drawings
Fig. 1 is the schematic diagram of step b;
Fig. 2 is the schematic diagram of step b;
Fig. 3 is the schematic diagram of step c;
Fig. 4 is the schematic diagram of steps d, e;
Fig. 5 is the schematic diagram of step f;
Fig. 6 is the schematic diagram of step g.
(5) specific embodiment
The job practices of this open caisson structure has following steps:
Step a, select the address of open caisson through exploration.
Step b, place reinforcing cage 1, break the collar tie beam 2 of steel concrete.Referring to Fig. 1, Fig. 2.The collar tie beam height is a 0.7-1.0 rice, and bore is a 0.5-1.5 rice.Also can dig an annular ditch groove earlier, in groove, place reinforcing cage, break the collar tie beam of steel concrete.
Step c, treat that the concrete collar tie beam solidifies and reaches predetermined strength after, dig under in collar tie beam, continuing, take away in the collar tie beam and the part soil body of bottom, collar tie beam is evenly sunk to the direction of arrow.The method of taking the soil body away can be mechanical execution, artificial construction or half mechanical half artificial construction.
Steps d, on collar tie beam, build well-protecting wall 3 by laying bricks or stones, referring to Fig. 4.Well-protecting wall can be steel concrete well-protecting wall or masonry well-protecting wall.
Step e, treat that well-protecting wall reaches predetermined strength after, take away in the well and the well-protecting wall bottom soil body, well-protecting wall is evenly sunk to the direction of arrow.Referring to Fig. 4.The method of taking the soil body away still can be mechanical execution, artificial construction or half mechanical half artificial construction.
Step f, continue to build by laying bricks or stones well-protecting wall 3, repeating step e reaches instructions for use up to the degree of depth of open caisson, referring to Fig. 5.For increasing the bonding strength between well section and the well section, can in well-protecting wall, place embedded bar or built-in fitting.
Step g, build well 4 by laying bricks or stones at last, until Cheng Jing, referring to Fig. 6.The well can be concrete well edge or masonry well.
Claims (6)
1. the job practices of an open caisson structure is characterized in that following steps are arranged:
A, select the position of open caisson through exploration;
B, place reinforcing cage, break the collar tie beam of steel concrete;
C, treat that the concrete collar tie beam solidifies and reaches predetermined strength after, dig under in collar tie beam, continuing, take away in the collar tie beam and the part soil body of bottom, collar tie beam is evenly sunk;
D, on collar tie beam, build well-protecting wall by laying bricks or stones;
E, treat that well-protecting wall reaches predetermined strength after, take away in the well and the well-protecting wall bottom soil body, well-protecting wall is evenly sunk;
F, continue to build by laying bricks or stones well-protecting wall, repeating step e reaches requirement up to the degree of depth of open caisson;
G, build the well by laying bricks or stones at last, until Cheng Jing.
2. the job practices of open caisson structure according to claim 1 is characterized in that: in step b, dig an annular ditch groove, place reinforcing cage in groove, break the collar tie beam of steel concrete.
3. the job practices of open caisson structure according to claim 1 and 2, it is characterized in that: in step b, the collar tie beam height is a 0.7-1.0 rice, and bore is a 0.5-1.5 rice.
4. the job practices of open caisson structure according to claim 1 and 2 is characterized in that: in step c, e, the method for taking the soil body away is mechanical execution, artificial construction or half mechanical half artificial construction.
5. the job practices of open caisson structure according to claim 1 and 2, it is characterized in that: in steps d, well-protecting wall is concrete well-protecting wall or masonry well-protecting wall.
6. the job practices of open caisson structure according to claim 1 and 2 is characterized in that: in step g, the well be concrete well along or the masonry well.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610200761 CN1888329A (en) | 2006-07-31 | 2006-07-31 | Open caisson structure construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610200761 CN1888329A (en) | 2006-07-31 | 2006-07-31 | Open caisson structure construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1888329A true CN1888329A (en) | 2007-01-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610200761 Pending CN1888329A (en) | 2006-07-31 | 2006-07-31 | Open caisson structure construction method |
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| CN (1) | CN1888329A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101545268B (en) * | 2009-04-29 | 2010-09-01 | 陈良保 | Method for mounting well tools of inspection well on asphalt concrete pavement |
| CN106760620A (en) * | 2016-12-27 | 2017-05-31 | 同济大学 | A kind of utilization open caisson increases the construction method for building the underground space under existing building |
| CN106958258A (en) * | 2017-03-21 | 2017-07-18 | 国网冀北电力有限公司唐山供电公司 | A kind of pole and tower foundation excavates the construction method of collapse structure |
-
2006
- 2006-07-31 CN CN 200610200761 patent/CN1888329A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101545268B (en) * | 2009-04-29 | 2010-09-01 | 陈良保 | Method for mounting well tools of inspection well on asphalt concrete pavement |
| CN106760620A (en) * | 2016-12-27 | 2017-05-31 | 同济大学 | A kind of utilization open caisson increases the construction method for building the underground space under existing building |
| CN106760620B (en) * | 2016-12-27 | 2019-03-29 | 同济大学 | It is a kind of to increase the construction method for building the underground space under existing building using open caisson |
| CN106958258A (en) * | 2017-03-21 | 2017-07-18 | 国网冀北电力有限公司唐山供电公司 | A kind of pole and tower foundation excavates the construction method of collapse structure |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |