CN204626439U - A kind of ruggedized construction of existing sole plate - Google Patents
A kind of ruggedized construction of existing sole plate Download PDFInfo
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- CN204626439U CN204626439U CN201520049447.8U CN201520049447U CN204626439U CN 204626439 U CN204626439 U CN 204626439U CN 201520049447 U CN201520049447 U CN 201520049447U CN 204626439 U CN204626439 U CN 204626439U
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- sole plate
- existing sole
- bored pile
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- reinforcing bar
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- 238000010276 construction Methods 0.000 title claims abstract description 46
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 38
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- 230000002787 reinforcement Effects 0.000 claims description 8
- 239000002689 soil Substances 0.000 abstract description 13
- 230000001965 increasing effect Effects 0.000 abstract description 7
- 230000006872 improvement Effects 0.000 abstract description 4
- 230000009466 transformation Effects 0.000 abstract description 4
- 238000002513 implantation Methods 0.000 abstract description 3
- 238000009435 building construction Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 230000008901 benefit Effects 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The ruggedized construction of a kind of existing sole plate of the present utility model, relate to technical field of building construction, for existing sole plate improvement project by widening increasing to realize reinforcing to sole plate, but reduce building usable floor area simultaneously, and add the problem of unit area building cost.In existing sole plate, some bored piles one are set, bored pile two is set up in existing sole plate, the pile foundation of bored pile two runs through existing sole plate, in the gusset plate superposed above the existing sole plate of its top implantation, make to be connected firmly by bar planting between existing sole plate and gusset plate, this ruggedized construction is constructed by piling and is increased sole plate intensity and adjusts bearing capacity of foundation soil, both the demand of New Buildings bearing capacity of foundation soil had been met, do not reduce again the usable floor area of building itself, the security and stability of building structure is ensure that while foundation structure transformation.
Description
Technical field
The utility model relates to technical field of building construction, particularly a kind of ruggedized construction to completed sole plate.
Background technology
At present, because of the adjustment of building superstructure design scheme, to the sole plate improvement project of having constructed mainly by increasing width and the height of sole plate, and the cross section widening increasing vertical member realizes, but this sole plate remodeling method reduces the usable floor area of building itself simultaneously, too increase the cost of unit area, for the real estate market of an inch of land is an inch of gold, there is very large drawback in this improvement project.
Therefore, how to design a kind of science, economic sole plate ruggedized construction is that those skilled in the art still need the problem explored further.
Summary of the invention
For existing sole plate improvement project by widening increasing to realize reinforcing to sole plate, but reduce building usable floor area simultaneously, and add the problem of unit area building cost, the purpose of this utility model is to provide a kind of ruggedized construction of existing sole plate, by to the piling of sole plate and pile connection construction, improve the bearing capacity on basis, and ensure that the safety of building structure, achieve the requirement of transformation.
The utility model solves the ruggedized construction of the existing sole plate that its technical problem adopts, in described existing sole plate, some bored piles one are set, one deck gusset plate is superposed above described existing sole plate, some bored piles two are set up in described existing sole plate, the pile foundation of described bored pile two runs through described existing sole plate, and the top of the reinforcing bar of described bored pile two is implanted in described gusset plate.
Preferably, the length D1 that described gusset plate is implanted on the top of the reinforcing bar of described bored pile two is more than or equal to 35d.
Preferably, the top of described bored pile one is also connected with bored pile three, and the pile foundation of described bored pile three is positioned at described existing sole plate, and the top of the reinforcing bar of described bored pile three is implanted in described gusset plate.
Preferably, the reinforcing bar of burying underground in described bored pile three has steel-bar arrangement in described bored pile one, and the top of the bottom and the interior existing reinforcing bar of described bored pile one of burying reinforcing bar in described bored pile three underground is crisscross arranged.
Preferably, the length D2 that the top of the bottom and the interior existing reinforcing bar of described bored pile one of burying reinforcing bar in described bored pile three underground interlocks is more than or equal to 10d.
Preferably, the length D3 that the bottom burying reinforcing bar in described bored pile three underground is implanted in described existing sole plate is more than or equal to 40d.
Preferably, the length D4 that the top burying reinforcing bar underground in described bored pile three anchors in described gusset plate is more than or equal to 40d.
Preferably, in described existing sole plate, arrangement of reinforcement is double-layer double-direction secondary steel 18@150, and in described gusset plate, arrangement of reinforcement is double-layer double-direction grade III steel 25@100.
Preferably, the intermediate layer of described gusset plate adds grade III steel 12@200 two-way concrete slab net.
Effect of the present utility model is: the ruggedized construction of existing sole plate of the present utility model, bored pile two is set up in existing sole plate, the pile foundation of bored pile two runs through existing sole plate, in the gusset plate superposed above the existing sole plate of its top implantation, make to be connected firmly by bar planting between existing sole plate and gusset plate, this ruggedized construction is constructed by piling and is increased sole plate intensity and adjusts bearing capacity of foundation soil, unfavorable factor is controlled within the scope of original base, advantage is created for not affecting superstructure member section, both the demand of New Buildings bearing capacity of foundation soil had been met, do not reduce again the usable floor area of building itself, the security and stability of building structure is ensure that while foundation structure transformation, and easy construction, reduce engineering cost.
Accompanying drawing explanation
Fig. 1 is the stake bit plan of bored pile in the utility model one embodiment;
Fig. 2 is the structural representation of piling construction in the utility model one embodiment;
Fig. 3 is the structural representation of pile connection construction in the utility model one embodiment;
Fig. 4 is the steel bar plane figure of pile connection construction in the utility model one embodiment.
Detailed description of the invention
Be described in further detail below in conjunction with the ruggedized construction of the drawings and specific embodiments to a kind of existing sole plate that the utility model proposes.According to explanation below and claims, advantage of the present utility model and feature will be clearer.Below by cited embodiment by reference to the accompanying drawings, technology contents of the present utility model and feature will be described in detail.Need to illustrate in addition, accompanying drawing all adopts the form that simplifies very much and all uses non-ratio accurately, only in order to object that is convenient, aid illustration the utility model embodiment lucidly.For sake of convenience, hereinafter described " on ", D score is consistent with the upper and lower direction of accompanying drawing, but this can not become the restriction of technical solutions of the utility model.
Composition graphs 1 to Fig. 4 illustrates the ruggedized construction of a kind of existing sole plate of the present utility model, the present embodiment is for certain housing construction, because of building function amendment, former bearing capacity of foundation soil can not meet new designing requirement, need carry out reinforcement to the basement sole plate completed by reverse construction, namely ruggedized construction of the present utility model realize reinforcement by the mode of piling in existing sole plate 1.In the present embodiment, existing sole plate 1 degree of depth reaches 2m, the bored pile 1 of some footpath 800mm is set in it, bored pile one 10 is long 28 meters, stake top mark height is-11.00m, one deck gusset plate 2 (i.e. newly-increased sole plate) is superposed above existing sole plate 1, set up some bored piles 2 20 in existing sole plate 1, the pile foundation of bored pile 2 20 runs through existing sole plate 1, and the top of bored pile 2 20 reinforcing bar 21 is implanted in gusset plate 2.That is, have bar planting between sole plate 1 with gusset plate 2 to be connected.
The ruggedized construction of existing sole plate of the present utility model, bored pile 2 20 is set up in existing sole plate 1, the pile foundation of bored pile 2 20 runs through existing sole plate 1, its top is implanted in the gusset plate 2 of superposition above existing sole plate 1, make to be connected firmly by bar planting between existing sole plate 1 and gusset plate 2, this ruggedized construction is constructed by piling and is increased sole plate intensity and adjusts bearing capacity of foundation soil, unfavorable factor is controlled within the scope of original base, advantage is created for not affecting superstructure member section, both the demand of New Buildings bearing capacity of foundation soil had been met, do not reduce again the usable floor area of building itself, the security and stability of building structure is ensure that while foundation structure transformation, and easy construction, reduce engineering cost.
For ensureing the bonding strength of gusset plate 2 and existing sole plate 1, as shown in Figure 2, the length D1 of the top implantation gusset plate 2 of bored pile 2 20 reinforcing bar is more than or equal to 35d, and d is the diameter of reinforcing bar, and 35d refers to 35 times of bar diameter length.
Incorporated by reference to Fig. 1 also with reference to figure 3 and Fig. 4, the top of bored pile 1 is also connected with bored pile 3 30, and the pile foundation of bored pile 3 30 is positioned at existing sole plate 1, and the top of the reinforcing bar of bored pile 3 30 is implanted in gusset plate 2.By the pile connection construction of bored pile 3 30 with bored pile 1, further enhancing the connection of gusset plate 2 and existing sole plate 1.Reinforcing bar 31 existing reinforcing bar 11 in bored pile 1 of burying underground in bored pile 3 30 is arranged, and the top of existing reinforcing bar 11 is crisscross arranged in the bottom burying reinforcing bar 31 underground in bored pile 3 30 and bored pile 1, that is, the bottom burying reinforcing bar 31 underground in bored pile 3 30 is lower than the top of reinforcing bar 11 existing in bored pile 1, to strengthen the vertical bearing capacity of pile body junction, the length D2 that both interlock is more than or equal to 10d.
Please continue to refer to Fig. 3, the length D3 that the bottom burying reinforcing bar 31 in bored pile 3 30 underground is implanted in existing sole plate 1 is more than or equal to 40d, and, the length D4 that the top burying reinforcing bar 31 underground anchors in gusset plate 2 is more than or equal to 40d, make existing sole plate 1 more firm with the connection of gusset plate 2, ensure the security and stability of building structure.
In above-mentioned existing sole plate 1, arrangement of reinforcement is that (namely diameter is the reinforcing bar of 18mm to double-layer double-direction secondary steel 18@150, spacing 150mm arranges), gusset plate 2 thickness is 2m, in plate, arrangement of reinforcement is double-layer double-direction grade III steel 25@100, intermediate layer adds grade III steel 12@200 two-way concrete slab net,, and adopt C30P8 concreting.
Composition graphs 1 to Fig. 4 illustrates that the work progress of the ruggedized construction of a kind of existing sole plate of the present utility model is as follows:
First, according to the situation that early stage, test pile was tentatively verified, piling region underground obstacle is mainly concrete block and steel concrete pile crown, piling position snap the line is located, and determine pile center position by position line, stake radial line and stake holes line, employing model is that the diamond water drilling machine (hereinafter referred water drilling) of SDL-250 carries out perforate to existing sole plate 1, piling construction adopts the stake footpath of bored pile 2 20 to be 800mm, therefore need expanding to 1000mm on existing sole plate 1 during perforate, so that the construction of bored pile 2 20, the stake holes degree of depth need be greater than the thickness of existing sole plate 1, in conjunction with rig type selecting, determine that the stake holes degree of depth is 2.5m.After getting hole and completing, utilize 360 ° of full circle swinging jacketing machines to carry out circumgyration incision and sink to, while creeping into, cut obstruction and obstruction is effectively separated with the soil body, then, remove the soil body and obstruction with punching grab bucket;
Then, construction drill castinplace pile 2 20 in stake holes, the pile foundation of bored pile 2 20 runs through existing sole plate 1, and above existing sole plate 1 reserved steel bar, make and artesian water head is checked, in order to avoid artesian water impacts hole quality, the stake holes cannot removed obstacles completely for part then adopts cement-soil to backfill;
Finally, existing sole plate 1 surface to be cleared up, and surperficial for existing sole plate 1 dabbing process is cleaned out, the reinforcing bar of colligation gusset plate 2 concreting, to complete piling construction.
Because piling stake position is closeer, 360 ° of full circle swinging jacketing machines have been removed obstacles and after steel bushing rotates and take out, the easy glides such as the concrete block of stake holes neighboring are in the stake holes of having cleared up, cause the construction cannot carrying out bored pile, therefore, after 360 ° of full circle swinging jacketing machines have been removed obstacles, stake holes must backfill, the intensity of backfill is to be advisable a little more than undisturbed soil, require closely knit, even, the cement mixing content of backfill cement-soil controls 7% ~ 10%, and namely add 130kg ~ 180kg cement in every cube of soil, strength control is at about 0.5mPa.
Also comprise in above-mentioned construction sequence, specify scope and cutting part, according to existing pile foundation network for location, the pile foundation snap the line of the bored pile 1 in existing sole plate 1 is located, water drilling drill bit is positioned over the inner side of cutting hole line, carry out boring cutting along the line side by side, utilize vapour to hang and take out concrete core and rubbish concrete block, the position of sole plate 1 is deeply had as pile connection construction by 40d bar planting, and reserved 40d anchorage length anchors in gusset plate 2 structure, the reinforcing bar of colligation gusset plate 2 concreting, sole plate has been reinforced.That is, sole plate 1 is deeply had as pile connection construction by 40d bar planting, and reserved 40d anchorage length anchors in gusset plate 2 structure, 40d tendon-planted craft will have sole plate 1 and gusset plate 2 (i.e. new and old sole plate) is superimposed as a whole.
Because basement sole plate completes, piling construction need in hole end operation, this engineering artesian head height about 6.5 meters, hole end absolute altitude about-9.9 meters, absolute altitude-39.0 meters at the bottom of bored pile one 10, in work progress, artesian water may affect greatly hole quality, therefore, by checking the checking computations of artesian head position, the end, hole, dewatering measure is taked to guarantee pile foundation construction, dewatering well when recovering former excavation of foundation pit carries out precipitation, precipitation height is 500mm below the end, hole, artesian water is avoided to impact hole quality, guarantee precipitation height 500mm below the end, hole, to ensure security of foundation ditch construction.
In addition, because basement structure completes, base roof plate cannot bear equipment load of removing obstacles, need utilize large automobile crane stand on pioneer road will remove obstacles equipment handling to hole the end carry out construction of removing obstacles.The equipment of removing obstacles comprises 360 degree of full circle swinging jacketing machines (conducting oneself with dignity about 35.5 tons), 80 tons of crawler cranes (chassis deadweight about 48 tons), and steel bushing.
Foregoing description is only the description to the utility model preferred embodiment; any restriction not to the utility model scope; any change that the those of ordinary skill in the utility model field does according to above-mentioned disclosure, modification, all belong to the protection domain of claims.
Claims (9)
1. the ruggedized construction of an existing sole plate, in described existing sole plate, some bored piles one are set, it is characterized in that: above described existing sole plate, superpose one deck gusset plate, some bored piles two are set up in described existing sole plate, the pile foundation of described bored pile two runs through described existing sole plate, and the top of the reinforcing bar of described bored pile two is implanted in described gusset plate.
2. the ruggedized construction of existing sole plate according to claim 1, is characterized in that: the length that described gusset plate is implanted on the top of the reinforcing bar of described bored pile two is D1, and D1 is more than or equal to 35d, and wherein, d is the diameter of reinforcing bar.
3. the ruggedized construction of existing sole plate according to claim 1 and 2, it is characterized in that: the top of described bored pile one is also connected with bored pile three, the pile foundation of described bored pile three is positioned at described existing sole plate, and the top of the reinforcing bar of described bored pile three is implanted in described gusset plate.
4. the ruggedized construction of existing sole plate according to claim 3, it is characterized in that: the reinforcing bar of burying underground in described bored pile three has steel-bar arrangement in described bored pile one, and the top of the bottom and the interior existing reinforcing bar of described bored pile one of burying reinforcing bar in described bored pile three underground is crisscross arranged.
5. the ruggedized construction of existing sole plate according to claim 4, is characterized in that: the length D2 that the top of the bottom and the interior existing reinforcing bar of described bored pile one of burying reinforcing bar in described bored pile three underground interlocks is more than or equal to 10d.
6. the ruggedized construction of existing sole plate according to claim 5, is characterized in that: the length D3 that the bottom burying reinforcing bar in described bored pile three underground is implanted in described existing sole plate is more than or equal to 40d.
7. the ruggedized construction of existing sole plate according to claim 5, is characterized in that: the length D4 that the top burying reinforcing bar in described bored pile three underground anchors in described gusset plate is more than or equal to 40d.
8. the ruggedized construction of existing sole plate according to claim 1 and 2, is characterized in that: in described existing sole plate, arrangement of reinforcement is double-layer double-direction secondary steel 18@150, and in described gusset plate, arrangement of reinforcement is double-layer double-direction grade III steel 25@100.
9. the ruggedized construction of existing sole plate according to claim 8, is characterized in that: the intermediate layer of described gusset plate adds grade III steel 12@200 two-way concrete slab net.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520049447.8U CN204626439U (en) | 2015-01-23 | 2015-01-23 | A kind of ruggedized construction of existing sole plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520049447.8U CN204626439U (en) | 2015-01-23 | 2015-01-23 | A kind of ruggedized construction of existing sole plate |
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| Publication Number | Publication Date |
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| CN204626439U true CN204626439U (en) | 2015-09-09 |
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| CN201520049447.8U Expired - Fee Related CN204626439U (en) | 2015-01-23 | 2015-01-23 | A kind of ruggedized construction of existing sole plate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594371A (en) * | 2015-01-23 | 2015-05-06 | 上海建工二建集团有限公司 | Reinforcing structure of existing foundation bottom plate and construction method thereof |
| CN108560611A (en) * | 2018-01-19 | 2018-09-21 | 江苏沪武建设集团有限公司 | A kind of basement tilts the float anchor structure after resetting leveling and construction method |
-
2015
- 2015-01-23 CN CN201520049447.8U patent/CN204626439U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594371A (en) * | 2015-01-23 | 2015-05-06 | 上海建工二建集团有限公司 | Reinforcing structure of existing foundation bottom plate and construction method thereof |
| CN108560611A (en) * | 2018-01-19 | 2018-09-21 | 江苏沪武建设集团有限公司 | A kind of basement tilts the float anchor structure after resetting leveling and construction method |
| CN108560611B (en) * | 2018-01-19 | 2020-07-14 | 江苏沪武建设集团有限公司 | Anchoring structure for basement after inclined floating, resetting and leveling and construction method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150909 |
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| CF01 | Termination of patent right due to non-payment of annual fee |