CN210482285U - Soft soil foundation manual hole digging pile structure - Google Patents
Soft soil foundation manual hole digging pile structure Download PDFInfo
- Publication number
- CN210482285U CN210482285U CN201920061515.0U CN201920061515U CN210482285U CN 210482285 U CN210482285 U CN 210482285U CN 201920061515 U CN201920061515 U CN 201920061515U CN 210482285 U CN210482285 U CN 210482285U
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- Prior art keywords
- retaining wall
- pile
- hole digging
- soft soil
- digging pile
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- Expired - Fee Related
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- 239000002689 soil Substances 0.000 title claims abstract description 63
- 239000004568 cement Substances 0.000 claims abstract description 26
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 9
- 239000010959 steel Substances 0.000 claims abstract description 9
- 238000010276 construction Methods 0.000 abstract description 29
- 230000002349 favourable effect Effects 0.000 abstract description 4
- 230000001681 protective effect Effects 0.000 abstract description 3
- 238000003756 stirring Methods 0.000 abstract 2
- 230000002787 reinforcement Effects 0.000 description 6
- 239000010410 layer Substances 0.000 description 5
- 238000009412 basement excavation Methods 0.000 description 4
- 238000009415 formwork Methods 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
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Abstract
A soft soil foundation manual hole digging pile structure creates favorable construction conditions and effective protective measures for the construction of soft soil foundation manual hole digging piles, improves the construction efficiency and saves the engineering cost. The hole digging pile is characterized by comprising a hole digging pile arranged in a soft soil foundation, wherein a retaining wall structure surrounding the side wall of the hole digging pile is arranged outside the hole digging pile, 1-2 drainage soil stirring piles are arranged outside the retaining wall structure in a surrounding mode, and connecting steel bars inserted into the cement soil stirring piles are arranged on the inner wall of the retaining wall structure at intervals. The cement mixing piles are arranged on the plane in a staggered mode. The retaining wall structure is formed by vertically butting retaining wall sections constructed in sequence from top to bottom, and the height of each retaining wall section is 0.5-1.0 m.
Description
Technical Field
The utility model relates to geotechnical engineering, in particular to soft soil foundation manual hole digging pile structure.
Background
The soft soil layer foundation is widely available, when civil engineering is built on the foundation, if the stability and safety can not meet the requirements, measures need to be taken for reinforcement, the reinforcing pile is a common engineering measure for improving the stability of the soft soil layer foundation, and particularly when the soft soil layer is positioned on an inclined rock stratum, the reinforcing pile is often adopted for lateral constraint reinforcement, so that the stability of the soft soil layer foundation is improved.
The lateral constraint reinforced pile is commonly used by an artificial hole digging pile and a cast-in-place bored pile. The dug pile has the characteristics of large section, large stressed contact surface and large resistance, can not be directly constructed in a soft soil foundation, and needs other effective protective measures. The bored circular pile is characterized by being suitable for various foundation conditions, but due to the influence of construction machinery, the section size is usually not more than 2.5m, the pile is circular, the stressed contact area is small, the horizontal resistance provided by the pile is small, the arrangement interval is usually small, and the engineering investment is much larger than that of a square pile for digging holes.
Therefore, the provided pile structure and construction method for digging holes on the soft soil foundation have important significance, and have the characteristics of simple construction, safety, reliability, excellent economy, environmental protection and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a soft soil foundation manual hole digging pile structure is provided, for the construction of soft soil foundation manual hole digging pile creates favourable construction conditions and effective safeguard measure, improve the efficiency of construction and save engineering cost.
The utility model provides an above-mentioned technical problem adopted technical scheme as follows:
the utility model discloses an artifical hole digging pile structure of soft soil foundation, including setting up the hole digging pile in the soft soil foundation, characterized by: and a retaining wall structure surrounding the side wall of the dug pile is arranged outside the dug pile, 1-2 draining soil mixing piles are arranged outside the retaining wall structure, and connecting steel bars inserted into the soil cement mixing piles are arranged on the inner wall of the retaining wall structure at intervals.
The cement mixing piles are arranged on the plane in a staggered mode.
The retaining wall structure is formed by vertically butting retaining wall sections constructed in sequence from top to bottom, and the height of each retaining wall section is 0.5-1.0 m.
The beneficial effects of the utility model are that:
firstly, constructing more than two rows of cement-soil mixing piles around a soft soil foundation hole digging pile, arranging the cement-soil mixing piles in a staggered manner to form a hole digging pile enclosure structure, constructing 2-4 cement-soil mixing piles in the center of the pile to form an excavation construction operation foundation, properly reducing the cement mixing amount of the cement-soil mixing piles in the center of the pile to bear the weight of hole digging workers and a small amount of other loads, and properly increasing the cement mixing amount of the cement-soil mixing piles around the pile to increase the stability of an excavation foundation pit;
secondly, the strength of the soft soil foundation is low, when a retaining wall structure arranged in the traditional construction process of the bored pile adopts cast-in-place formwork erection, because the friction resistance of the soft soil is very small, reinforcing steel bars and a construction template are difficult to fix, and after the concrete pouring of the retaining wall structure is finished to a certain strength, the retaining wall structure formed in the early stage is easy to slide down when the next retaining wall structure is constructed;
and thirdly, favorable construction conditions and effective protection measures are created for the construction of the manual hole digging pile of the soft soil foundation, the construction efficiency is improved, the engineering cost is saved, and the method has the characteristics of simplicity in construction, safety, reliability, good economical efficiency, environmental protection requirement meeting, contribution to popularization and the like.
Drawings
The specification includes the following three drawings:
fig. 1 is a sectional view of the manual dug pile structure for the soft soil foundation of the utility model;
fig. 2 is the utility model relates to a soft soil foundation manual hole digging pile structure's construction plane arranges the schematic diagram.
Fig. 3 is the utility model relates to a soft soil foundation manual hole digging pile structure's construction facade schematic diagram.
The component names and corresponding labels are shown in the figure: cement mixing pile 1, connecting steel bar 2, retaining wall structure 3, dug hole pile 4.
Detailed Description
The invention is further described with reference to the following figures and examples:
referring to fig. 1, the utility model discloses a manual hole digging pile structure of soft soil foundation, including setting up hole digging pile 4 in the soft soil foundation. And a retaining wall structure 3 surrounding the side wall of the dug pile 4 is arranged outside the dug pile, 1-2 draining soil mixing piles 1 are arranged outside the retaining wall structure 3, and connecting steel bars 2 inserted into the cement soil mixing piles 1 are arranged on the inner wall of the retaining wall structure 3 at intervals. Referring to fig. 3, the retaining wall structure 3 is formed by vertically butting retaining wall segments constructed in sequence from top to bottom, and the height of each retaining wall segment is 0.5-1.0 m.
Referring to fig. 2 and 3, the utility model relates to a soft soil foundation manual hole digging pile structure is under construction according to following step:
① laying ordinary soil with a certain thickness on the surface layer of the soft soil foundation, leveling the ground, and positioning the plane of the dug pile 4;
② constructing 1-2 drainage soil mixing piles 1 on the outer side of the periphery of the retaining wall structure 3 of the digging pile 4, wherein the cement soil mixing piles 1 are arranged in a staggered way;
③ constructing 2-4 cement mixing piles 1 at intervals on the inner side of the position of the retaining wall structure 3 of the bored pile 4 according to the size of the bored pile 4;
④ digging manually the pile body of the soft soil and cement mixing pile 1 inside the first section of retaining wall structure 3 of the digging pile 4;
⑤, drilling holes on the pile body of the cement soil mixing pile 1 around the retaining wall structure 3 of the bored pile 4 by adopting the drilling holes, implanting connecting steel bars 2, wherein the connecting steel bars 2 enter the pile body of the cement soil mixing pile 1 and the exposed length is not less than 20 cm;
⑥ binding the reinforcement cage of the first section of the retaining wall structure 3 and fixing with the exposed connecting reinforcement 2;
⑦ erecting the formwork to construct the concrete of the first retaining wall structure 3;
⑧ excavating a soft soil and cement mixing pile 1 pile body at the inner side of the second section of retaining wall structure 3 of the bored pile 4 after the concrete of the first section of retaining wall structure 3 reaches more than 80% of the design strength;
⑨ repeating steps ⑤ - ⑧ until all retaining wall structure 3 structures through soft soil layers are completed;
⑩ placing reinforcement cages of the bored piles 4 in the structure of the retaining wall structure 3 and pouring concrete.
Referring to fig. 1 and 2, the utility model discloses at first the soil cement mixing pile 1 more than two rows of construction all around of soft soil foundation dug hole stake 4, soil cement mixing pile 1 staggered arrangement, form 4 envelope of dug hole stake, then at 2-4 soil cement mixing pile 1 of the central construction of stake, form excavation construction operation basis, the soil cement mixing pile at stake center mixes the cement volume and suitably reduces, can with can bear the weight of the construction worker of digging hole and a small amount of other loads, the cement volume of mixing of soil cement mixing pile 1 all around suitably increases, with the stability of increase excavation foundation ditch. The intensity of soft soil foundation is lower, and when the dado structure that sets up in the traditional bored pile work progress adopted cast-in-place formwork, because the frictional resistance of weak soil is very little, reinforcing bar and construction formwork are difficult to fix to and after dado concreting accomplished and reached certain intensity, when constructing next dado structure 3, the dado structure that forms in earlier stage very easily produced the gliding. The utility model inserts several connecting steel bars 2 into the cement mixing pile 1 formed around the digging pile 4 before each section of retaining wall structure 3 is constructed to effectively fix the steel reinforcement cage constructed by the single section of retaining wall structure 3, thereby preventing the upper section of retaining wall structure from sliding downwards during the construction of the lower section of retaining wall structure; creates favorable construction conditions and effective protective measures for the construction of the manual hole digging pile of the soft soil foundation, improves the construction efficiency and saves the engineering cost,
the distance and the number of the cement soil mixing piles 1 are set so as to be convenient for manual hole digging construction operation to determine, and the cement mixing amount is 10-20% of the weight.
The above is only used for illustrating the present invention, the present invention is not limited to the specific structure and the step range shown and described, so all the corresponding modifications and equivalents that may be utilized belong to the claimed patent scope of the present invention.
Claims (3)
1. The utility model provides a soft soil foundation manual hole digging pile structure, is including setting up hole digging pile (4) in the soft soil foundation, characterized by: the hole digging pile (4) is externally provided with a retaining wall structure (3) surrounding the side wall of the hole digging pile, the retaining wall structure (3) is externally provided with a retaining pile (1) surrounding 1-2 draining soil, and the inner wall of the retaining wall structure (3) is provided with connecting steel bars (2) inserted into the soil cement mixing pile (1) at intervals.
2. The soft soil foundation manual hole digging pile structure of claim 1, characterized in that: the cement soil mixing piles (1) are arranged on the plane in a staggered mode.
3. The soft soil foundation manual hole digging pile structure of claim 1, characterized in that: the retaining wall structure (3) is formed by vertically butting retaining wall sections constructed in sequence from top to bottom, and the height of each retaining wall section is 0.5-1.0 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920061515.0U CN210482285U (en) | 2019-01-15 | 2019-01-15 | Soft soil foundation manual hole digging pile structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920061515.0U CN210482285U (en) | 2019-01-15 | 2019-01-15 | Soft soil foundation manual hole digging pile structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210482285U true CN210482285U (en) | 2020-05-08 |
Family
ID=70508330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920061515.0U Expired - Fee Related CN210482285U (en) | 2019-01-15 | 2019-01-15 | Soft soil foundation manual hole digging pile structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210482285U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2019
- 2019-01-15 CN CN201920061515.0U patent/CN210482285U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200508 |
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| CF01 | Termination of patent right due to non-payment of annual fee |