CN203066084U - Reinforcing structure of retaining wall of manual hole digging pile - Google Patents
Reinforcing structure of retaining wall of manual hole digging pile Download PDFInfo
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- CN203066084U CN203066084U CN 201320049029 CN201320049029U CN203066084U CN 203066084 U CN203066084 U CN 203066084U CN 201320049029 CN201320049029 CN 201320049029 CN 201320049029 U CN201320049029 U CN 201320049029U CN 203066084 U CN203066084 U CN 203066084U
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Abstract
The utility model relates to a reinforcing structure of a retaining wall of a manual hole digging pile, which comprises an in-hole retaining wall and a supporting structure encircled outside a retaining wall and inside a soil body, wherein the supporting structure comprises a plurality of micropiles evenly distributed around the circumference of the in-hole retaining wall, and the distance from each micropile in the micropiles to the circle of the in-hole retaining wall is equal, so as to form a micropile cell. The reinforcing structure of the retaining wall of the manual hole digging pile has the advantages that the pile cells are arranged around the pile holes, the micropile precedes the hole digging pile in arrangement, and has a certain strength at the same time, and based on the concrete surface course sprayed on the hole wall, the hole wall has higher micropile advance support capability before the forming of the retaining wall and has the support strength at early times, and conditions are provided for the construction of the cast-in-situ concrete in-hole retaining wall; and under the combined action of the formed retaining wall and the micropiles, the support strength of the retaining wall is greatly increased, the possibility of local soil instability during the construction of the hole digging pile is reduced, and the risk in construction is reduced.
Description
[technical field]
The utility model relates to building, the realm of building construction, relates in particular to the stake of hand excavation hole and reaches the structure of strengthening retaining wall for the stake of hand excavation hole.
[background technology]
At building engineering field, hand excavated pile is widely used, and mainly has the following advantages based on it: the easy construction space requirement is little, and construction need not the construction equipment that provides more fast, and construction cost is low.Though hand excavated pile has more advantage, hand excavated pile also exists construction complicated, characteristics such as construction technical requirement height.
Hand excavated pile, conventional work progress is as follows: adopt hand digging to carry out explosion to desired depth or in appropriate depth earlier, be generally about 1 meter, concrete condition can be determined according to actual soil property soil condition, build the truncated cone-shaped concrete guard wall at hole wall place formwork then, dig under continuing then, repeat formwork again and build the truncated cone-shaped concrete guard wall, go round and begin again up to the stake hole that forms complete absolute altitude, in the metapore assembling reinforcement cage then concreting form complete reinforced concrete pile.
The retaining wall part of constructing exactly of most important stage in the pile driving construction process of hand excavation hole, stake hole in digging process, may have soil body unstability or have partial collapse may, and if do not have a solid retaining wall support, the easier construction problem that occurs.
Current, though the research for protection wall of bored pile is more, the Patent project that proposes is also more, but many patents at problem mainly be the spicing forming type of precast hole digging pile retaining wall, as patent 98210099.X, patent 98242756.5, these methods can guarantee that all hole wall has integrality and supporting intensity preferably, reduced construction risk to a certain extent, shortened the construction period, the precast hole digging pile retaining wall can be realized the immediate support to hole wall, but because the splicing prefabricated bulkhead lacks globality, so its intensity is limited, particularly for the construction of large-diameter bored pile and dark pile body, still there is bigger risk.
[summary of the invention]
The utility model is strengthened structure at the hand excavation hole pile wall that above problem has proposed a kind of good integrity, strength enhancing, and this retaining wall is strengthened good, safe, the further soil body wall of having strengthened of structural stability, has reduced artificial construction's danger coefficient.
The manually digging hole pile wall that relates to described in the utility model is strengthened structure, comprise in the hole in the outer soil body of retaining wall and retaining wall around supporting construction, described several mini piles that comprise retaining wall circumference uniform distribution in the hole around supporting construction, each mini pile retaining wall circular distance in the hole equates in described several mini piles, constitutes the mini pile circle.
Describedly comprising two mini pile circles around supporting construction, is respectively the first mini pile circle and the second mini pile circle, and the diameter of the first mini pile circle is less than the diameter of the second mini pile circle.
The mini pile number that the described first mini pile circle and the second mini pile circle comprise equates, each mini pile is corresponding in the second mini pile circle is arranged in the middle of two mini piles of the first mini pile circle mini pile interlaced arrangement in the first mini pile circle and the second mini pile circle.
The distance of retaining wall is 300mm in mini pile in the described first mini pile circle and the hole.
Lean on ground surface end at the first mini pile circle and the second mini pile circle, construction Guan Liang.
The described mini pile degree of depth is greater than the hole digging pile design elevation.
Hand excavation hole pile wall in the utility model is strengthened structure, has the mini pile circle around in the stake hole, and mini pile arranges early than hole digging pile, possesses certain intensity simultaneously, add the concrete pavement that hole wall sprays, thereby make hole wall before the retaining wall moulding, just possess stronger mini pile advance support ability, have early stage supporting intensity, for the construction of retaining wall in the cast-in-situ concrete hole provides condition.After the retaining wall moulding will with the mini pile acting in conjunction, significantly improved the supporting intensity of retaining wall, reduced the possibility of soil body local buckling in the excavation pile construction process, reduce the danger of construction.And the existence of Guan Liang can allow the mini pile circle that is combined into by single mini pile have bulk strength, forms a load-bearing total system.
[description of drawings]
Fig. 1 is the utility model structure vertical view;
Fig. 2 is the utility model sectional view.
Wherein: 10, retaining wall in the hole; 20, mini pile circle; 21, the first mini pile circle; 22, the second mini pile circle; 30, Guan Liang.
[specific embodiment]
Below in conjunction with drawings and Examples the utility model hand excavation hole pile wall being strengthened structure is elaborated.
Please refer to Fig. 1: shown manually digging hole pile wall is strengthened structure, comprise in the hole in the outer soil body of retaining wall 10 and retaining wall around supporting construction, described several mini piles that comprise retaining wall circumference uniform distribution in the hole around supporting construction, each mini pile retaining wall 10 circular distance in the hole equate in described several mini piles, constitute mini pile circle 20.
Hole digging pile strengthen structure mainly by retaining wall in the hole 10 and on every side mini pile circle 20 form, retaining wall 10 is still as the device of the main dynamics of bearing in the hole, mini pile circle stake footpath arranges that with needing several circles be to determine according to the soil property situation, mini pile pile center is 300mm from hole inwall retaining wall distance, and spacing is 600mm between each mini pile.When soil condition determine to need two mini pile circles, then describedly comprise two mini pile circles around supporting construction, be respectively that the diameter of the first mini pile circle 21 and the second mini pile circle, 22, the first mini pile circles 21 is less than the diameter of the second mini pile circle 22.The mini pile number that the described first mini pile circle 21 and the second mini pile circle 22 comprise equates, each mini pile is corresponding in the second mini pile circle 22 is arranged in the middle of two mini piles of the first mini pile circle 21 the mini pile interlaced arrangement in the first mini pile circle 21 and the second mini pile circle 22.At this moment, keeping the distance of retaining wall in mini pile in the described first mini pile circle and the hole is 300mm.
Lean on ground surface end at the first mini pile circle and the second mini pile circle, construction hat beam 30.Need guarantee that Guan Liang is linked to be integral body with all mini piles during construction hat beam, strengthen structural integrity, the control structure distortion.
The described mini pile degree of depth is greater than the hole digging pile design elevation.
The concrete work progress that retaining wall is strengthened structure comprises following several stages, retaining wall in retaining wall and the Guan Liang → excavation second layer → hole, construction second road in miniature pile construction → excavation first floor → hole, construction first road, smooth place → hole digging pile location → on every side → ...Every layer of cutting depth determined according to soil property during construction, is generally about 1m, need be connected firmly between the retaining wall in every layer of hole, to guarantee the globality of retaining wall.Miniature pile construction is the key link of this protection wall of bored pile construction, and the mini pile location must be accurately, the stake position can not enter in the hole digging pile scope can not from hole digging pile too away from, two row's mini piles quincuncial arrangement of need interlocking is to guarantee that whole soil bodys are strengthened.
This programme is when the excavation soil body of stake hole, mini pile has been constructed and has been finished, possesses certain intensity simultaneously, add the concrete pavement that hole wall sprays, thereby make hole wall before the retaining wall moulding, just possess stronger mini pile advance support ability, has early stage supporting intensity, for the construction of retaining wall in the cast-in-situ concrete hole provides condition.After the retaining wall moulding will with the mini pile acting in conjunction, significantly improved the supporting intensity of retaining wall, reduced the possibility of soil body local buckling in the excavation pile construction process, reduce the danger of construction.And the existence of Guan Liang can allow the mini pile circle that is combined into by single mini pile have bulk strength, forms a load-bearing total system.
In certain concrete work items, just adopt above-mentioned hand excavation hole pile wall to strengthen the supporting scheme of structure, the pile body maximum gauge is 7m in this engineering item mouth, and cutting depth is darker, local buckling takes place when therefore hole digging pile excavates easily, and traditional retaining wall scheme can not satisfy the engineering safety requirement.The two row's mini piles of having constructed in advance around every hole digging pile of this engineering, 60 of every rows, blossom type arranges, stake long from the end, existing foundation ditch hole to weathering front, stake footpath 220mm, built-in 12.6 common i iron; The first mould retaining wall and mini pile are built together, and the top arranges 400 * 1000 Guan Liang, and cutting depth surpasses 30cm sprayed mortar immediately, and thickness 70mm forms preliminary bracing with mini pile; The retaining wall beam of coming of age adopts the C45 early strength concrete, and retaining wall adopts the early strong concrete of 1 mould C60 every 2 moulds, and every mould height is 65cm; Retaining wall connects and prevents that huge pile wall from sinking in order to strengthen up and down, and a part of mini pile is built with the retaining wall concrete, and dowel connects 400mm by φ 10 and changes φ 10 into and connect 500mm up and down simultaneously.The safe mass problem does not all appear in 24 super-large diameter hole digging piles of this engineering construction, has demonstrated fully superiority and the practicality of this retaining wall scheme.
The above, it only is the utility model preferred embodiment, be not that the utility model is done any pro forma restriction, though the utility model discloses as above with preferred embodiment, yet be not in order to limit the utility model, any those skilled in the art, in not breaking away from the technical solutions of the utility model scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be not break away from the technical solutions of the utility model content, refer to any simple modification that above embodiment is done according to the utility model technology, equivalent variations and modification all belong in the scope of technical solutions of the utility model.
Claims (6)
1. a manually digging hole pile wall is strengthened structure, it is characterized in that, comprise in the hole in the outer soil body of retaining wall and retaining wall around supporting construction, described several mini piles that comprise retaining wall circumference uniform distribution in the hole around supporting construction, each mini pile retaining wall circular distance in the hole equates in described several mini piles, constitutes the mini pile circle.
2. strengthen structure according to the described manually digging hole pile wall of claim 1, it is characterized in that, describedly comprising two mini pile circles around supporting construction, is respectively the first mini pile circle and the second mini pile circle, and the diameter of the first mini pile circle is less than the diameter of the second mini pile circle.
3. strengthen structure according to the described manually digging hole pile wall of claim 2, it is characterized in that, the mini pile number that the described first mini pile circle and the second mini pile circle comprise equates, each mini pile is corresponding in the second mini pile circle is arranged in the middle of two mini piles of the first mini pile circle mini pile interlaced arrangement in the first mini pile circle and the second mini pile circle.
4. strengthen structure according to the described manually digging hole pile wall of claim 3, it is characterized in that, lean on ground surface end at the first mini pile circle and the second mini pile circle, construction Guan Liang.
5. strengthen structure according to the described manually digging hole pile wall of claim 2, it is characterized in that the distance of retaining wall is 300mm in the mini pile in the described first mini pile circle and the hole.
6. strengthen structure according to the described manually digging hole pile wall of claim 1, it is characterized in that the described mini pile degree of depth is greater than the hole digging pile design elevation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320049029 CN203066084U (en) | 2013-01-28 | 2013-01-28 | Reinforcing structure of retaining wall of manual hole digging pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320049029 CN203066084U (en) | 2013-01-28 | 2013-01-28 | Reinforcing structure of retaining wall of manual hole digging pile |
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| Publication Number | Publication Date |
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| CN203066084U true CN203066084U (en) | 2013-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320049029 Expired - Lifetime CN203066084U (en) | 2013-01-28 | 2013-01-28 | Reinforcing structure of retaining wall of manual hole digging pile |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107504874A (en) * | 2017-08-27 | 2017-12-22 | 贵州新联爆破工程集团有限公司 | A kind of artificial digging pile blasting protection device |
| CN109680682A (en) * | 2019-01-15 | 2019-04-26 | 中铁二院工程集团有限责任公司 | A kind of soft soil foundation Manual excavated pile structure and construction method |
| CN110258593A (en) * | 2019-06-26 | 2019-09-20 | 中国电建集团成都勘测设计研究院有限公司 | Friction pile for slope treatment |
-
2013
- 2013-01-28 CN CN 201320049029 patent/CN203066084U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107504874A (en) * | 2017-08-27 | 2017-12-22 | 贵州新联爆破工程集团有限公司 | A kind of artificial digging pile blasting protection device |
| CN107504874B (en) * | 2017-08-27 | 2023-04-07 | 保利新联爆破工程集团有限公司 | Manual hole digging pile blasting protection device |
| CN109680682A (en) * | 2019-01-15 | 2019-04-26 | 中铁二院工程集团有限责任公司 | A kind of soft soil foundation Manual excavated pile structure and construction method |
| CN109680682B (en) * | 2019-01-15 | 2024-01-05 | 中铁二院工程集团有限责任公司 | Construction method of manual hole digging pile structure of soft soil foundation |
| CN110258593A (en) * | 2019-06-26 | 2019-09-20 | 中国电建集团成都勘测设计研究院有限公司 | Friction pile for slope treatment |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 518027 No. 1043 Shangbu Middle Road, Futian District, Shenzhen City, Guangdong Province Patentee after: SHENZHEN GEOTECHNICAL INVESTIGATION & SURVEYING INSTITUTE (Group) Co.,Ltd. Address before: 518028 No. 1043 Shangbu Middle Road, Futian District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN GEOTECHNICAL INVESTIGATION & SURVEYING INSTITUTE Co.,Ltd. |
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| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130717 |
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| CX01 | Expiry of patent term |