CN102041805B - Method for constructing underground continuous wall with empty slot - Google Patents
Method for constructing underground continuous wall with empty slot Download PDFInfo
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- CN102041805B CN102041805B CN2009100709267A CN200910070926A CN102041805B CN 102041805 B CN102041805 B CN 102041805B CN 2009100709267 A CN2009100709267 A CN 2009100709267A CN 200910070926 A CN200910070926 A CN 200910070926A CN 102041805 B CN102041805 B CN 102041805B
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Abstract
The invention relates to a method for constructing an underground continuous wall with an empty slot, which comprises the following steps of: (1) manufacturing a guide wall; (2) forming a slot; (3) hoisting a steel reinforcement cage and an opening sealing tube; (4) pouring concrete; (5) pulling out the opening sealing tube; (6) constructing the spacing slot section of the underground continuous wall and repeating the steps (1) to (5); (7) constructing a middle slot section, wherein in the step (3), two semicircular steel tubes with opposite arcs are welded on both ends of the top face of the steel reinforcement cage, and the upper ends of the two semicircular steel tubes are flush with the bottom face of the guide wall, wherein the diameters of the two semicircular steel tubes are greater than the diameter of the opening sealing tube; in the step (4), concrete is poured to the top face of the underground continuous wall, and a space between the top face of the underground continuous wall and the bottom face of the guide wall is filled with broken stone; and in the step (7), the middle slot section is constructed by repeating the step (1) and the step (2), hoisting the steel reinforcement cage, and carrying out the step (4) to complete the construction. The invention has simple and easily learned technical steps, shortens construction times, reduces work strength and construction cost, increases construction efficiency, saves resources and conforms to the national policy of energy saving and emission reduction in China.
Description
Technical field
The invention belongs to the realm of building construction, especially a kind of dead slot construction of continuous concrete wall method that has.
Background technology
Along with the increase of country to infrastructure investment, underground construction is more and more, and the foundation ditch of a lot of engineerings adopts the diaphragm wall supporting, and wherein a lot of diaphragm walls are provided with dead slot at an upper portion thereof for the needs that adapt to engineering, for example, and in subway, the basement construction.Space between top surface to the ground surface that so-called dead slot is exactly a diaphragm wall, the size of dead slot is relevant with actual project situation.The diaphragm wall that in present actual engineering, has dead slot mainly passes through following construction sequence: wall is led in (1), making, is used to carry construction machinery, for example: groover; (2), utilize the groover grooving; (3), lifting reinforcing cage and fore shaft pipe; (4), fluid concrete; (5), extract the fore shaft pipe, promptly accomplish the construction of a groove section of diaphragm wall; (6), carry out the construction of diaphragm wall interval trough section, two interval trough sections constructions finish, and carry out the construction of medial launder section again.In step (4), to pour into a mould plain concrete in top surface to the dead slot of leading between the wall bottom surface of diaphragm wall during fluid concrete; So that the closely knit Tu Bi of dead slot part that prevents caves in the dead slot; But when follow-up construction need be used the dead slot section; Need fragmentation earlier, transport plain concrete in the diaphragm wall dead slot, carry out follow-up construction again, so in the construction of continuous concrete wall that has dead slot at present, there is following problem: 1, the engineering time is long, working strength is big; 2, construction cost increases; 3, the waste of concrete resource; 4, efficiency of construction is lower.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art, a kind of dead slot construction of continuous concrete wall method that has is provided, this kind method has shortened the engineering time, has reduced working strength and construction cost, has improved the efficient of construction, has practiced thrift resource.
The present invention solves its technical problem and realizes through following technical scheme:
A kind of dead slot construction of continuous concrete wall method that has comprises the steps: that (1) makes to lead wall; (2) utilize the groover grooving; (3) lifting reinforcing cage and fore shaft pipe; (4) fluid concrete; (5) extract the fore shaft pipe, promptly accomplish the construction of diaphragm wall starting vessel section; (6) carry out the construction of diaphragm wall interval trough section, its construction is same as step (1) to (5); (7) carry out the construction of medial launder section; It is characterized in that:
Two circular arcs of welding diameter in opposite directions in the end face two ends of the reinforcing cage that is lifted in the step (3) is greater than the semicircle steel pipe of fore shaft pipe diameter, and the upper end of these two semicircle steel pipes with lead the wall bottom surface and flush;
The concrete of being poured into a mould in the step (4) is to be poured into the diaphragm wall end face, and adopts rubble to fill the diaphragm wall end face to the space of leading between the wall bottom surface;
The construction of the medial launder section of step (7) directly lifts reinforcing cage for carrying out step (1) after (2), carries out step (4) then and promptly accomplishes, and adopts rubble to fill the diaphragm wall end face to the space of leading between the wall bottom surface in the dead slot section at last.
And, be welded with reinforcing rib between semicircle steel pipe in the said step (3) and the reinforcing cage.
And described reinforcing rib is a channel-section steel.
Advantage of the present invention and beneficial effect are:
1, originally have the semicircle steel pipe of two circular arcs of welding of reinforcing cage end face two ends in dead slot construction of continuous concrete wall method diameter in opposite directions greater than fore shaft pipe diameter, the upper end of these two semicircle steel pipes with lead the wall bottom surface and flush; Fluid concrete to diaphragm wall end face adopts rubble to fill the diaphragm wall end face to the space of leading between the wall bottom surface, when the follow-up construction of needs; Avoid the step of broken plain concrete, shortened the time of construction, improved the efficient of construction; Reduced working strength of workers, the rubble of filling can recycle, has practiced thrift resource; And semicircle steel pipe and rubble raw material wide material sources, convenient construction.
2, originally have in the dead slot construction of continuous concrete wall method and be welded with reinforcing rib between the semicircle steel pipe and reinforcing cage, this reinforcing rib is a channel-section steel, can effectively strengthen the support action of semicircle steel pipe, has improved safety; When follow-up construction is cut the earth, can semicircle steel pipe and channel-section steel be cut down recycle, practice thrift the cost of construction.
3, processing step of the present invention is easy to learn, has shortened the engineering time, has reduced working strength and construction cost, has improved the efficient of construction, has practiced thrift resource, meets the state basic policy of national energy-saving and emission-reduction.
Description of drawings
Fig. 1 is the construction of diaphragm wall sketch map;
Fig. 2 is that the A-A of Fig. 1 is to sectional view.
The specific embodiment
Through specific embodiment the present invention is made further detailed description below, following examples are descriptive, are not determinate, can not limit protection scope of the present invention with this.
A kind of dead slot construction of continuous concrete wall method that has comprises the steps: (1), makes and lead wall 1, is used to carry engineering machinery and bank protection; (2), utilize the groover grooving, use mud off in the process of grooving; (3), lifting reinforcing cage 3 and fore shaft pipe 5; Two circular arcs of welding diameter in opposite directions is greater than the semicircle steel pipe 7 of fore shaft pipe diameter at reinforcing cage end face two ends; The upper end of these two semicircle steel pipes with lead the wall bottom surface and flush; Between semicircle steel pipe and reinforcing cage, be welded with reinforcing rib 4, reinforcing rib is a channel-section steel in the present embodiment, also can be round steel or i iron or angle steel; (4), fluid concrete: fluid concrete to diaphragm wall end face, adopt rubble to fill the diaphragm wall end face to the space 9 of leading between the wall bottom surface; (5), extract the fore shaft pipe, promptly accomplish the construction of diaphragm wall starting vessel section 2; (6), carry out the construction of diaphragm wall interval trough section 8, its construction sequence is that (1) is to (5); (7), carry out the construction of medial launder section 6, step be (1) to the content of (2), directly lift reinforcing cage, carry out step (4) construction then and promptly accomplish construction of continuous concrete wall.
Whole diaphragm wall can be divided into some groove section constructions according to the needs of engineering, and the starting vessel section that the present invention proposes can be the beginning of groove section, and promptly the groove section 1; The interval trough section can be expressed as odd number groove section 3,5,7,9 ..., the medial launder section can be expressed as 2,4,6,8 ..., 1, the 3 groove sections of in practice of construction, can constructing earlier; The 2 groove sections of constructing again; The 5 groove sections of constructing then, the 4 groove sections of constructing again hocket; Also can earlier the construction of odd number groove section be finished the even numbers groove section of constructing again.
The present invention is in application process; When band dead slot construction of diaphragm wall finishes, in the time of the dead slot section need being excavated once more, need not to carry out the fragmentation of plain concrete; Also need not be that broken plain concrete is sought the stockyard again; Be used for concrete making after the rubble that is used to fill the dead slot section can reuse or sieve, semicircle steel pipe and reinforcing rib can in time cut recycle, have saved the cost of construction.
Claims (3)
1. one kind has dead slot construction of continuous concrete wall method, comprises the steps: that (1) makes to lead wall; (2) utilize the groover grooving; (3) lifting reinforcing cage and fore shaft pipe; (4) fluid concrete; (5) extract the fore shaft pipe, promptly accomplish the construction of diaphragm wall starting vessel section; (6) carry out the construction of diaphragm wall interval trough section, its construction is same as step (1) to (5); (7) carry out the construction of medial launder section; It is characterized in that:
Two circular arcs of welding diameter in opposite directions in the end face two ends of the reinforcing cage that is lifted in the step (3) is greater than the semicircle steel pipe of fore shaft pipe diameter, and the upper end of these two semicircle steel pipes with lead the wall bottom surface and flush;
The concrete of being poured into a mould in the step (4) is to be poured into the diaphragm wall end face, and adopts rubble to fill the diaphragm wall end face to the space of leading between the wall bottom surface;
The construction of the medial launder section of step (7) directly lifts reinforcing cage for carrying out step (1) after (2), carries out step (4) then and promptly accomplishes.
2. the dead slot construction of continuous concrete wall method that has according to claim 1 is characterized in that: be welded with reinforcing rib between semicircle steel pipe in the said step (3) and the reinforcing cage.
3. the dead slot construction of continuous concrete wall method that has according to claim 2, it is characterized in that: described reinforcing rib is a channel-section steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100709267A CN102041805B (en) | 2009-10-22 | 2009-10-22 | Method for constructing underground continuous wall with empty slot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100709267A CN102041805B (en) | 2009-10-22 | 2009-10-22 | Method for constructing underground continuous wall with empty slot |
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| Publication Number | Publication Date |
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| CN102041805A CN102041805A (en) | 2011-05-04 |
| CN102041805B true CN102041805B (en) | 2012-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009100709267A Active CN102041805B (en) | 2009-10-22 | 2009-10-22 | Method for constructing underground continuous wall with empty slot |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102852158B (en) * | 2012-09-25 | 2014-04-16 | 浙江省地质矿产工程公司 | Construction method for nonstandard diaphragm wall |
| CN109989392B (en) * | 2019-03-20 | 2020-12-22 | 南通勘察设计有限公司 | Construction grooving process for sandy soil underground continuous wall |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1793527A (en) * | 2005-12-28 | 2006-06-28 | 上海市第一建筑有限公司 | Method for construction of underground continuous steel jacket box |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1793527A (en) * | 2005-12-28 | 2006-06-28 | 上海市第一建筑有限公司 | Method for construction of underground continuous steel jacket box |
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| CN102041805A (en) | 2011-05-04 |
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Owner name: MCC TIANGONG GROUP CO., LTD. Free format text: FORMER NAME: MCC TIANGONG CONSTRUCTION CO., LTD. |
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Address after: 300308, No. 88 west two, airport logistics processing zone, Binhai New Area, Tianjin Patentee after: MCC Tiangong Group Co., Ltd. Address before: 300308 No. 88, two West Road, Tianjin Airport Logistics Processing Zone Patentee before: MCC TianGong Construction Co., Ltd. |