CN102587409A - Foundation underpinning joint treatment method - Google Patents
Foundation underpinning joint treatment method Download PDFInfo
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- CN102587409A CN102587409A CN2011100026046A CN201110002604A CN102587409A CN 102587409 A CN102587409 A CN 102587409A CN 2011100026046 A CN2011100026046 A CN 2011100026046A CN 201110002604 A CN201110002604 A CN 201110002604A CN 102587409 A CN102587409 A CN 102587409A
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- sandwich wall
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Abstract
The invention discloses a foundation underpinning joint treatment method. The foundation underpinning joint treatment method includes excavating earthwork on two sides of a wall, and reserving a construction space for follow-up construction of wall sandwiched beams; arranging a plurality of I-beam holes on wall surfaces of rectangular grooves; setting an I-beam in each I-beam holes; carrying out construction of formworks and reinforcing steel bars of the wall sandwiched beams in the two grooves; welding the I-beams with main reinforcement of the wall sandwiched beams; reserving pile holes in the wall sandwiched beams; carrying out pouring of the wall sandwiched beams; and penetrating piles through the reserved pile holes to carry out construction of static-pressure piles. The foundation underpinning joint treatment method solves problems that sedimentation is caused in a underpinning joint treatment procedure of the prior art and increase of carrying capacity is not obvious, the wall sandwiched beams are disposed on two sides of the wall, the I-beams penetrate through the wall to be welded with the wall sandwiched beams, the wall sandwiched beams are penetratingly provided with anchor piles, accordingly, pressure on the wall is transferred onto the anchor piles via the I-beams and the wall sandwiched beams, and carrying capacity of the wall is greatly improved.
Description
Technical field
The present invention relates to a kind of job practices, relate in particular to a kind of processing method of foundation underpinning node.
Background technology
Foundation underpinning is claimed underground underpining (Under pinning) again, says it is in order to increase the support supporting capacity on existing building basis, to increase new permanent supporter or basis in the bottom on existing basis on the narrow sense; In a broad sense when being close to or under existing foundation construction thing during earth excavation; In order to eliminate the influence that possibly bring to existing foundation construction thing function and structure etc., to existing foundation construction thing carry out reinforcement and strengthening, to the bearing stratum ground of building improve, engineerings such as new basis instrument and new and old basic replacement.Therefore certainly exist in the transfer process of load that joist (or truss, as follows) is torn post (or wall, or stake is as follows) open, joist connects post and joist changes technical processes such as post.
Along with the greatly developing of construction that with the city underground is the underground public transit facility of main body; Underground installation is more and more crowded; The continuous three-dimensional of the utilization of the underground space; Urban construction demonstrate ground → underground top layer → shallow depth underground → development trend of big depth underground, so underpinning technique occupies more and more important position in the civil construction of city in modern times.
For common underpin node processing, a kind of is the stress surface that strengthens original base now, and another kind is that the soil body polar water mud of original base below is reinforced, and these two kinds of processing may produce following shortcoming:
1, is to strengthen the soil body that basic cross section or grouting and reinforcing all certainly will disturbance original base belows, causes to produce disadvantageous sedimentation;
2, still at first floor soil, bearing capacity does not have reinforcement fundamentally to above two kinds of method holding power layers.
Summary of the invention
The invention discloses a kind of processing method of foundation underpinning node, strengthen unconspicuous problem in order to sedimentation and the bearing capacity that causes in the processing procedure that solves prior art foundation underpinning node.
Above-mentioned purpose of the present invention realizes through following technical scheme:
A kind of processing method of foundation underpinning node wherein, comprising:
Step 1 101: the earthwork of excavation body of wall both sides, for construction space is reserved in the construction of follow-up sandwich wall beam;
Step 2 102: offer a plurality of i iron hole on the metope in rectangular recess;
Step 3 103: in each i iron hole, an i iron is set;
Step 4 104: in two grooves, carry out the template of sandwich wall beam and the construction of reinforcing bar;
Step 5 105: with the main muscle welding of i iron and sandwich wall beam;
Step 6 106: in the sandwich wall beam, reserve the stake hole;
Step 7 107: carry out building of sandwich wall beam;
Step 8 108: a reservation stake hole is passed in stake carried out construction of Static Pressure Pile.
The processing method of aforesaid foundation underpinning node wherein, also comprises after the step 1 101, with brush cleaning i iron hole.
The processing method of aforesaid foundation underpinning node wherein, also comprises after the step 7 107, and the intensity of sandwich wall beam is tested, and after the intensity of sandwich wall beam reaches setting value, carries out the construction of step 8 108.
The processing method of aforesaid foundation underpinning node wherein, also comprises concrete perfusion in pile body after the step 8 108.
The processing method of aforesaid foundation underpinning node, wherein, a plurality of i iron hole in the step 3 103 is opened on the same level height.
In sum; The processing method of foundation underpinning node of the present invention has solved the sedimentation and the bearing capacity that cause in the processing procedure of prior art foundation underpinning node and has strengthened unconspicuous problem, in the body of wall both sides sandwich wall beam is set; I iron is passed body of wall and the welding of sandwich wall beam; Pass the sandwich wall beam anchor pole stake is set, make the pressure of body of wall transfer in the anchor pole stake, strengthened the bearing capacity of body of wall greatly through i iron and sandwich wall beam.
Description of drawings
Fig. 1 is the flow chart of foundation underpinning node processing method of the present invention.
The specific embodiment
Be further described below in conjunction with the accompanying drawing specific embodiments of the invention:
Fig. 1 is the flow chart of foundation underpinning node processing method of the present invention, sees also Fig. 1, and a kind of processing method of foundation underpinning node wherein, comprising:
Step 1 101: the earthwork of excavation body of wall both sides, reserve construction space for the construction of follow-up sandwich wall beam, offer two rectangular recess in the both sides of body of wall, to adapt to the shape of sandwich wall beam.
Step 2 102: offer a plurality of i iron hole on the metope in rectangular recess, reserve construction space in body of wall for i iron is set.
Step 3 103: in each i iron hole, an i iron is set; I iron has, and bending resistance is strong, construction is simple, practice thrift cost, construction weight, advantage that mechanical property is good, and the downforce that i iron receives body of wall is set in body of wall can be shifted through i iron.
Step 4 104: in two grooves, carry out the template of sandwich wall beam and the construction of reinforcing bar,, build the sandwich wall beam, make that building the suffered power of completion back wall at the sandwich wall beam can shift through two sandwich wall beams in the both sides of body of wall in order to build the framework of a sandwich wall beam in advance.
Step 5 105: with the main muscle welding of i iron and sandwich wall beam; Make the script body of wall be applied to the body of wall downforce that underpins on the node originally and transfer on the main muscle, and then can downforce and self gravitation that body of wall receives be transferred on the sandwich wall beam of building completion through i iron.
Step 6 106: in the sandwich wall beam, reserve the stake hole, be follow-up pile sinking ready for operation.
Step 7 107: carry out building of sandwich wall beam, cement is poured in the template, accomplish the construction of sandwich wall beam.
Step 8 108: a reservation stake hole is passed in stake carried out the construction of static pressed pile; The stake position anchor pole stake that the present invention uses; Both a hole is passed in the anchor pole stake and sunk to undergroundly, and carry out concrete perfusion, accomplish the reinforcing bar of perfusion back configuration some more than the sandwich wall beam; Pour into a mould with concrete again, can guarantee the secure fixation of anchor pole stake and sandwich wall beam.
Also comprise after the step 1 101 of the present invention,, avoid foreign material in the i iron hole to influence the construction of i iron with brush cleaning i iron hole.
Also comprise after the step 7 107 of the present invention; Intensity to the sandwich wall beam is tested;, the intensity of sandwich wall beam carries out the construction of step 8 108 after reaching setting value; Avoid the insufficient strength of sandwich wall beam to cause in the piling construction process and error occurs, or cause the damage of sandwich wall beam, influence the effect of foundation underpinning.
Also comprise concrete perfusion in pile body after the step 8 108 of the present invention.
A plurality of i iron hole in the step 3 103 of the present invention is opened on the same level height, is convenient to the main muscle and the i iron of sandwich wall beam are welded.
In sum; The processing method of foundation underpinning node of the present invention has solved the sedimentation and the bearing capacity that cause in the processing procedure of prior art foundation underpinning node and has strengthened unconspicuous problem, in the body of wall both sides sandwich wall beam is set; I iron is passed body of wall and the welding of sandwich wall beam; Pass the sandwich wall beam anchor pole stake is set, make the pressure of body of wall transfer in the anchor pole stake, strengthened the bearing capacity of body of wall greatly through i iron and sandwich wall beam.
More than the specific embodiment of the utility model is described in detail, but it is just as example, the utility model is not restricted to the specific embodiment of above description.To those skilled in the art, any equivalent modifications that the utility model is carried out with substitute also all among the category of the utility model.Therefore, impartial conversion and the modification under spirit that does not break away from the utility model and scope, done all should be encompassed in the scope of the utility model.
Claims (5)
1. the processing method of a foundation underpinning node is characterized in that, comprising:
Step 1 101: the earthwork of excavation body of wall both sides, for construction space is reserved in the construction of follow-up sandwich wall beam;
Step 2 102: offer a plurality of i iron hole on the metope in rectangular recess;
Step 3 103: in each i iron hole, an i iron is set;
Step 4 104: in two grooves, carry out the template of sandwich wall beam and the construction of reinforcing bar;
Step 5 105: with the main muscle welding of i iron and sandwich wall beam;
Step 6 106: in the sandwich wall beam, reserve the stake hole;
Step 7 107: carry out building of sandwich wall beam;
Step 8 108: a reservation stake hole is passed in stake carried out construction of Static Pressure Pile.
2. the processing method of foundation underpinning node according to claim 1 is characterized in that, also comprises after the step 1 101, with brush cleaning i iron hole.
3. the processing method of foundation underpinning node according to claim 1 is characterized in that, also comprises after the step 7 107, and the intensity of sandwich wall beam is tested, and after the intensity of sandwich wall beam reaches setting value, carries out the construction of step 8 108.
4. the processing method of the foundation underpinning node of stating according to claim 1 is characterized in that, also comprises concrete perfusion in pile body after the step 8 108.
5. the processing method of foundation underpinning node according to claim 1 is characterized in that, a plurality of i iron hole in the step 3 103 is opened on the same level height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100026046A CN102587409A (en) | 2011-01-07 | 2011-01-07 | Foundation underpinning joint treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100026046A CN102587409A (en) | 2011-01-07 | 2011-01-07 | Foundation underpinning joint treatment method |
Publications (1)
| Publication Number | Publication Date |
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| CN102587409A true CN102587409A (en) | 2012-07-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011100026046A Pending CN102587409A (en) | 2011-01-07 | 2011-01-07 | Foundation underpinning joint treatment method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110306831A (en) * | 2019-07-12 | 2019-10-08 | 上海建工七建集团有限公司 | Existing wall support system and its construction method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1132302A (en) * | 1995-09-29 | 1996-10-02 | 哈尔滨市道里区房屋土地开发公司 | Structure displacement method of building |
| JP2007170070A (en) * | 2005-12-22 | 2007-07-05 | Takenaka Komuten Co Ltd | Method for rebuilding building |
| CN101429819A (en) * | 2007-11-07 | 2009-05-13 | 上海天演建筑物移位工程有限公司 | Wall and column underpinning method |
| CN101725258A (en) * | 2008-10-30 | 2010-06-09 | 上海天演建筑物移位工程有限公司 | Integral jacking method of heritage buildings |
-
2011
- 2011-01-07 CN CN2011100026046A patent/CN102587409A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1132302A (en) * | 1995-09-29 | 1996-10-02 | 哈尔滨市道里区房屋土地开发公司 | Structure displacement method of building |
| JP2007170070A (en) * | 2005-12-22 | 2007-07-05 | Takenaka Komuten Co Ltd | Method for rebuilding building |
| CN101429819A (en) * | 2007-11-07 | 2009-05-13 | 上海天演建筑物移位工程有限公司 | Wall and column underpinning method |
| CN101725258A (en) * | 2008-10-30 | 2010-06-09 | 上海天演建筑物移位工程有限公司 | Integral jacking method of heritage buildings |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110306831A (en) * | 2019-07-12 | 2019-10-08 | 上海建工七建集团有限公司 | Existing wall support system and its construction method |
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Application publication date: 20120718 |