CN205035790U - Combination formula drilling bored concrete pile structure in peat matter soil - Google Patents
Combination formula drilling bored concrete pile structure in peat matter soil Download PDFInfo
- Publication number
- CN205035790U CN205035790U CN201520645063.2U CN201520645063U CN205035790U CN 205035790 U CN205035790 U CN 205035790U CN 201520645063 U CN201520645063 U CN 201520645063U CN 205035790 U CN205035790 U CN 205035790U
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- Prior art keywords
- cumulosol
- cement
- steel wire
- wire sleeve
- pile structure
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- 239000003415 peat Substances 0.000 title claims abstract description 34
- 239000002689 soil Substances 0.000 title claims abstract description 19
- 238000005553 drilling Methods 0.000 title abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 49
- 239000004568 cement Substances 0.000 claims abstract description 49
- 239000010959 steel Substances 0.000 claims abstract description 49
- 239000004927 clay Substances 0.000 claims abstract description 21
- 229920002472 Starch Polymers 0.000 claims abstract description 6
- 235000019698 starch Nutrition 0.000 claims abstract description 6
- 238000007569 slipcasting Methods 0.000 claims abstract description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 39
- 239000004744 fabric Substances 0.000 claims description 20
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 17
- 239000002002 slurry Substances 0.000 claims description 16
- 238000005516 engineering process Methods 0.000 claims description 6
- 239000000654 additive Substances 0.000 claims description 4
- 230000000996 additive effect Effects 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
- 239000008107 starch Substances 0.000 claims description 3
- 239000010881 fly ash Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 3
- 238000002347 injection Methods 0.000 abstract description 2
- 239000007924 injection Substances 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract 3
- 239000007787 solid Substances 0.000 abstract 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 abstract 2
- 235000017491 Bambusa tulda Nutrition 0.000 abstract 2
- 241001330002 Bambuseae Species 0.000 abstract 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 abstract 2
- 239000011425 bamboo Substances 0.000 abstract 2
- 239000011148 porous material Substances 0.000 abstract 1
- 239000008452 qiyu Substances 0.000 abstract 1
- 230000002787 reinforcement Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- 239000002699 waste material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The utility model discloses a combination formula drilling bored concrete pile structure in peat matter soil, add solid, peat matter soil and a steel wire sleeve section of thick bamboo including drilling bored concrete pile, cement clay thick liquid, the drilling bored concrete pile passes a peat matter soil and a stake zhou qiyu soil layer, adopts in high -pressure injection slip casting equipment and technique inject cement clay thick liquid into peat matter soil layer depth extension in drilling bored concrete pile stake position department earlier, forms more large diameter cement clay and starches with the solid, treat that cement clay thick liquid adds solid masses and tends towards stability, in the bored concrete pile construction of holing of the same stake position department, will utilize steel wire sleeve section of thick bamboo ligature that steel wire mesh sheet made in the work progress on the steel reinforcement cage, ligature position and the peat matter soil layer degree of depth, thickness and number of piles one -to -one, the utility model discloses can effectively solve in the foundation ditch engineering that effectively to solve under the deep peat matter soil matter environment the poor and sufficient coefficient of concrete of drilling bored concrete pile pore -forming quality construction problem such as too big.
Description
Technical field
The utility model relates to a kind of drill-pouring pilework, especially relates to the Combined drill hole pouring pile structure in a kind of cumulosol, belongs to building pile foundation engineering field.
Background technology
Along with expanding economy, urban construction is from center, city to the expansion of surrounding suburb and transfer, and many engineerings inevitably will be built on soft foundation.The weak soil of extensively distribution has mud, cumulosol, peat and cumulosol etc. in China.Current is for mud and cumulosol to Soft Soil Engineering Quality Research mostly, and actually rare to the engineering Quality Research of cumulosol.Because the organic content of cumulosol is high, void ratio is large, water content is high, natural density is little, compressibilty is large, creep easily occurs in disturbance, shear strength is low, structural strong and highly sensitive, the engineering properties such as consolidation is slow; usually the difficult point that hole quality is poor and concrete fullness coefficient is excessive can be faced when carrying out bored pile construction in deep peat swamps evolution; have a strong impact on pile quality, cause the waste that concrete is unnecessary.Some units in charge of construction adopt steel pile casting to make template, which solve the problem that fullness coefficient is excessive, but waste steel, improve single pile cost.Traditional piling method also exists certain limitation, can not solve the problem well.
Summary of the invention
The purpose of this utility model is to overcome the construction Difficulties of bored pile in deep peat swamps evolution, provides drilling pouring pile hole in a kind of base pit engineering that can effectively solve under deep cumulosol geological environment the of poor quality and excessive Combined drill hole pouring pile structure waiting construction problem of concrete fullness coefficient.
The technical solution of the utility model is: the Combined drill hole pouring pile structure in a kind of cumulosol, starch reinforcing body, cumulosol and steel wire sleeve by bored pile, cement clay to form, adopt at Pile position place high pressure jet grouting equipment and technology to be injected in peat swamps evolution depth bounds by cement clay slurries and form cement clay slurry reinforcing body, metal binding wire sleeve on the reinforcing cage outside cement clay slurry reinforcing body.Bored pile is through cumulosol and stake Zhou Qiyu soil layer, first adopt at Pile position place high pressure jet grouting equipment and technology to be injected in peat swamps evolution depth bounds (exceed soil layer up-and-down boundary and be no less than 1m) by cement clay slurries, form larger-diameter cement clay slurry reinforcing body; Treat that cement clay slurry reinforcing body quality tends towards stability, in identical stake position, place carries out bored pile construction, in work progress by utilize steel fabric sheet to make the colligation of steel wire sleeve on reinforcing cage, lashing location and cumulosol layer depth, thickness and number of plies one_to_one corresponding.
As preferred version of the present utility model:
The dry additive ratio of cement in described cement clay slurries is not more than 8%.
Described cement clay slurry reinforcing body diameter is greater than 2 times of bored pile diameter.
Described steel wire sleeve is made up of steel fabric sheet, the aperture of steel fabric sheet is 5 ~ 10mm, steel fabric sheet utilizes thin wire colligation to be fixed on reinforcing cage, length 150 ~ the 200mm larger than the perimeter of section of reinforcing cage of steel fabric sheet, after namely making steel wire sleeve, the upper and lower lap length of steel fabric sheet is 150 ~ 200mm.
Which floor described cumulosol is distributed with, and correspondence just has several sections of cement clay slurry reinforcing bodies; For multilayer cumulosol, cement clay slurry reinforcing body is arranged or step-by-step arrangement continuously.
Which floor described cumulosol is distributed with, and steel wire sleeve is just provided with how many sections; For multilayer cumulosol, steel wire sleeve is arranged or step-by-step arrangement continuously; Every section of upper and lower both sides of steel wire sleeve exceed corresponding peat swamps evolution border 150 ~ 200mm.
The material cement clay slurries of described high-pressure slip-casting also can select single cement paste, Cement fly ash or cement-silicate slurries.
Described cumulosol also can be the bored pile construction in the soft foundations such as deep peat, mud or mucky soil.
The utility model uses step as follows:
(1) according to the place hydrology, geological conditions and engineering safety Stability Numerical Analysis result, determine bored pile construction parameter, comprise that stake is long, stake footpath etc.
(2) measuring spot plane Controling network;
(3) axis and the setting-out of stake position;
(4) according to the diameter of concreting coarse aggregate, determine steel fabric sheet aperture, and make steel wire sleeve;
(5) reinforcing cage is made, according to the distribution of place the peat swamps evolution number of plies, the degree of depth and thickness, by the colligation of steel wire sleeve on reinforcing cage;
(6) Pile machine is in place, carries out drilling construction;
(7) install reinforcing cage;
(8) concrete perfusion.
The beneficial effects of the utility model are:
(1) adopt slurry injection technique to utilize cement clay slurries to carry out stiffening basic ground in advance, effectively can solve the difficult point of hole quality difference when bored pile is constructed in deep peat swamps evolution, improve pile quality;
(2) according to peat swamps evolution distribution and position, metal binding wire sleeve on reinforcing cage, effectively can solve the difficult point that when bored pile is constructed in deep peat swamps evolution, concrete fullness coefficient is excessive, concrete is avoided to run off in peat swamps evolution, cement paste in peripheral concrete outwards flows out and can also form the higher topping of intensity, reduces concrete unnecessary waste;
(3) the utility model solves hole quality difference and concrete fullness coefficient excessive two difficult problems when bored pile is constructed in deep peat swamps evolution simultaneously, not only ensure that pile quality, save concrete amount, also widened the range of application of bored pile, there is important economic benefit and social benefit.
Accompanying drawing explanation
Fig. 1: the bored pile layout schematic diagram in the utility model peat swamps evolution;
Fig. 2: the bored pile horizontal section schematic diagram in the utility model individual layer peat swamps evolution;
Fig. 3: the bored pile horizontal section schematic diagram in the utility model multilayer peat swamps evolution step-by-step arrangement;
Fig. 4: the utility model multilayer peat swamps evolution arrange continuously in bored pile horizontal section schematic diagram;
Fig. 5: the bored pile longitudinal profile schematic diagram in the utility model individual layer peat swamps evolution;
Fig. 6: the bored pile longitudinal profile schematic diagram in the utility model multilayer peat swamps evolution step-by-step arrangement;
Fig. 7: the utility model multilayer peat swamps evolution arrange continuously in bored pile longitudinal profile schematic diagram;
In figure, each label is: 1-bored pile; 2-cement clay slurry reinforcing body; 3-cumulosol; 4-steel wire sleeve; 5,6,7-stake Zhou Qiyu soil layer.
Detailed description of the invention
Below by drawings and Examples, the utility model is described in further detail, but protection domain of the present utility model is not limited to described content.
Embodiment 1: as shown in Fig. 1,2,5, the Combined drill hole pouring pile structure in a kind of cumulosol, starches reinforcing body 2, cumulosol 3, steel wire sleeve 4 and stake Zhou Qiyu soil layer 5,6 by bored pile 1, cement clay and forms.Construction underground, place only has one deck cumulosol, first adopt at bored pile 1 position place high pressure jet grouting equipment and technology to be injected in peat swamps evolution depth bounds (exceed soil layer up-and-down boundary and be no less than 1m) by cement clay slurries, form larger-diameter cement clay slurry reinforcing body 2; Treat that cement clay slurry reinforcing body 2 tends towards stability, then carry out bored pile 1 at stake position place and construct, in work progress by utilize steel fabric sheet to make steel wire sleeve 4 colligation on reinforcing cage, lashing location and peat swamps evolution 3 degree of depth, thickness and number of plies one_to_one corresponding.The dry additive ratio of cement in cement clay slurries used is not more than 8%, and cement clay slurry reinforcing body 2 diameter should be greater than 2 times of bored pile 1 diameter.Steel wire sleeve 4 is made up of steel fabric sheet, and the aperture of steel fabric sheet is 5 ~ 10mm.Gauze wire cloth utilizes thin wire colligation to be fixed on reinforcing cage, and upper and lower lap length is 150 ~ 200mm, and steel wire sleeve about 4 both sides respectively exceed corresponding peat swamps evolution border 150 ~ 200mm.
Embodiment 2: as shown in Fig. 1,3,4,6,7, the Combined drill hole pouring pile structure in a kind of cumulosol, starches reinforcing body 2, cumulosol 3, steel wire sleeve 4 and stake Zhou Qiyu soil layer 5,6,7 by bored pile 1, cement clay and forms.Construction underground, place is distributed with two-layer above cumulosol, first adopt at bored pile 1 position place high pressure jet grouting equipment and technology to be injected in peat swamps evolution depth bounds (exceed soil layer up-and-down boundary and be no less than 1m) by cement clay slurries, form larger-diameter cement clay slurry reinforcing body 2; Treat that cement clay slurry reinforcing body 2 tends towards stability, then carry out bored pile 1 at stake position place and construct, in work progress by utilize steel fabric sheet to make steel wire sleeve 4 colligation on reinforcing cage, lashing location and peat swamps evolution 3 degree of depth, thickness and number of plies one_to_one corresponding.The dry additive ratio of cement in cement clay slurries used is not more than 8%, and cement clay slurry reinforcing body 2 diameter should be greater than 2 times of bored pile 1 diameter.Steel wire sleeve 4 is made up of steel fabric sheet, and the aperture of steel fabric sheet is 5 ~ 10mm.Gauze wire cloth utilizes thin wire colligation to be fixed on reinforcing cage, and upper and lower lap length is 150 ~ 200mm, and every section of steel wire sleeve about 4 both sides exceed corresponding peat swamps evolution border 150 ~ 200mm.Each section of cement paste reinforcing body and steel wire sleeve sectional arrange or arrange continuously.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (8)
1. the Combined drill hole pouring pile structure in a cumulosol, it is characterized in that: starch reinforcing body (2), cumulosol (3) and steel wire sleeve (4) by bored pile (1), cement clay and form, adopt at bored pile (1) stake position place high pressure jet grouting equipment and technology to be injected within the scope of cumulosol (3) layer depth by cement clay slurries and form cement clay slurry reinforcing body (2), starch metal binding wire sleeve (4) on reinforcing body (2) reinforcing cage outward at cement clay.
2. the Combined drill hole pouring pile structure in cumulosol according to claim 1, is characterized in that: the cement siccative additive ratio in described cement clay slurries is not more than 8% by weight.
3. the Combined drill hole pouring pile structure in cumulosol according to claim 1, is characterized in that: described cement clay slurry reinforcing body (2) diameter is greater than 2 times of bored pile (1) diameter.
4. the Combined drill hole pouring pile structure in cumulosol according to claim 1, it is characterized in that: described steel wire sleeve (4) is made up of steel fabric sheet, the aperture of steel fabric sheet is 5 ~ 10mm, steel fabric sheet utilizes thin wire colligation to be fixed on reinforcing cage, length 150 ~ the 200mm larger than the perimeter of section of reinforcing cage of steel fabric sheet, namely make steel wire sleeve (4) afterwards the upper and lower lap length of steel fabric sheet be 150 ~ 200mm.
5. the Combined drill hole pouring pile structure in cumulosol according to claim 1, is characterized in that: which floor described cumulosol (3) is distributed with, and correspondence just has several sections of cement clays slurry reinforcing body (2); For multilayer cumulosol (3), cement clay slurry reinforcing body (2) is arranged or step-by-step arrangement continuously.
6. the Combined drill hole pouring pile structure in cumulosol according to claim 1, is characterized in that: which floor described cumulosol (3) is distributed with, and steel wire sleeve (4) is just provided with how many sections; For multilayer cumulosol (3), steel wire sleeve (4) is arranged or step-by-step arrangement continuously; Every section of steel wire sleeve (4) exceeds corresponding cumulosol (3) layer border 150 ~ 200mm in both sides up and down.
7. the Combined drill hole pouring pile structure in cumulosol according to claim 1, is characterized in that: the material cement clay slurries of described high-pressure slip-casting select single cement paste, Cement fly ash or cement-silicate slurries.
8. the Combined drill hole pouring pile structure in cumulosol according to claim 1, is characterized in that: described cumulosol (3) is deep peat, mud or mucky soil soft foundation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520645063.2U CN205035790U (en) | 2015-08-25 | 2015-08-25 | Combination formula drilling bored concrete pile structure in peat matter soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520645063.2U CN205035790U (en) | 2015-08-25 | 2015-08-25 | Combination formula drilling bored concrete pile structure in peat matter soil |
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| Publication Number | Publication Date |
|---|---|
| CN205035790U true CN205035790U (en) | 2016-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520645063.2U Expired - Fee Related CN205035790U (en) | 2015-08-25 | 2015-08-25 | Combination formula drilling bored concrete pile structure in peat matter soil |
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| Country | Link |
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| CN (1) | CN205035790U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105064331A (en) * | 2015-08-25 | 2015-11-18 | 中铁二院昆明勘察设计研究院有限责任公司 | Combined cast-in-situ bored pile structure in cumulosol |
| CN106759427A (en) * | 2017-03-14 | 2017-05-31 | 中电建建筑集团有限公司 | Mire area towering structure composite foundation pile construction method |
-
2015
- 2015-08-25 CN CN201520645063.2U patent/CN205035790U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105064331A (en) * | 2015-08-25 | 2015-11-18 | 中铁二院昆明勘察设计研究院有限责任公司 | Combined cast-in-situ bored pile structure in cumulosol |
| CN106759427A (en) * | 2017-03-14 | 2017-05-31 | 中电建建筑集团有限公司 | Mire area towering structure composite foundation pile construction method |
| CN106759427B (en) * | 2017-03-14 | 2019-07-12 | 中电建建筑集团有限公司 | Mire area towering structure composite foundation pile construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20160217 |
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| CF01 | Termination of patent right due to non-payment of annual fee |