CN112554223B - Circumferential pile arrangement method for composite foundation - Google Patents
Circumferential pile arrangement method for composite foundation Download PDFInfo
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- CN112554223B CN112554223B CN202011167203.1A CN202011167203A CN112554223B CN 112554223 B CN112554223 B CN 112554223B CN 202011167203 A CN202011167203 A CN 202011167203A CN 112554223 B CN112554223 B CN 112554223B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
- E02D27/16—Foundations formed of separate piles
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2200/00—Geometrical or physical properties
- E02D2200/16—Shapes
- E02D2200/1607—Shapes round, e.g. circle
- E02D2200/1621—Shapes round, e.g. circle made from multiple elements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/727—Offshore wind turbines
Abstract
The invention discloses a method for annularly arranging piles of a composite foundation, which comprises the following steps: (1) arranging a center pile in the center of a target land; (2) arranging x circles of annular pile systems consisting of a plurality of piles outside the central pile, wherein the centers of all circles of piles are on the same circumference; (3) and adjusting the distance between piles and the number of piles to ensure that the area replacement rate of each pile on each pile ring is equal. The invention improves the utilization rate of the peripheral piles and solves the problems of uneven stress of the piles at the edge of the foundation, fuzzy local pile arrangement and more pile arrangement. The adoption hoop cloth stake's foundation treatment mode, the size is convenient for adjust as required to the replacement rate of composite foundation, and the quantity of cloth stake is convenient for control, and its calculation is also more accurate. The method is not only beneficial to the application of engineering, but also improves the calculation and construction efficiency.
Description
Technical Field
The invention relates to a pile arrangement method, in particular to a circumferential pile arrangement method of a composite foundation, and belongs to the field of foundation treatment.
Background
The pile arrangement modes of the known composite foundation treatment include triangular pile arrangement and rectangular pile arrangement, and other forms of pile arrangement are also obtained by conversion according to the triangular and rectangular pile arrangement modes. When the composite foundation of the rectangular foundation is processed, a known pile arrangement mode is adopted, the area boundary of pile arrangement can be matched with the edge of the upper foundation, but when the composite foundation of the circular foundation is processed, the existing triangular or rectangular pile arrangement mode is adopted, the pile arrangement area can not be matched with the edge of the circular foundation, the boundary of the foundation processing is not clear, the stress of the pile at the edge of the composite foundation processing is not uniform, whether pile arrangement is needed for the pile at the edge position is fuzzy or not is determined, and in order to ensure that the range of the foundation processing can be met in the design process, the pile arrangement is usually partially preserved to the outer side below the edge of the foundation, so that the condition of local pile arrangement is wasted.
Disclosure of Invention
The invention aims to: the invention aims to provide a method for annularly arranging piles of a composite foundation, which aims to solve the problems that when a triangular or rectangular pile arrangement mode composite foundation meets a circular foundation, foundation edge foundation treatment piles are stressed unevenly, local pile arrangement is wasted, pile arrangement is needed to be fuzzy in some positions, and the treatment boundary of the composite foundation is unclear.
The technical scheme is as follows: the invention relates to a method for annularly arranging piles of a composite foundation, which comprises the following steps:
(1) arranging a center pile in the center of a target place;
(2) arranging x circles of annular pile systems consisting of a plurality of piles outside the central pile, wherein the center of each circle of piles is on the same circumference and is marked as the ith circle of pile ring from inside to outside, and i is 1,2,3 … … x;
(3) and adjusting the distance between every two circles of piles and the number of every two circles of piles to ensure that the area replacement rate of every pile on every circle of pile ring is equal.
The piles in each pile ring are distributed at equal intervals.
The width of each circle of pile rings is equal.
The step (3) specifically comprises the following steps:
(30) the diameter of each pile is d, n piles are distributed in the first circle, n + (i-1) p piles are distributed in the ith circle, the circumferential radial pile spacing of each circle of piles is kd, p is an equal difference factor, and the number of the piles in each circle is increased in an equal difference mode;
(31) calculating the equivalent processing area s of a pile of the ith pile ringiAnd the equivalent processing area s of the central pile is calculated, and the area replacement rate m of any pile on the ith circle of pile ring is calculatediAnd the area replacement rate m of the central pile;
(32) and adjusting n or k to enable the area replacement rate of the central pile to be equal to that of the annular pile.
N, i.e. the ith circle is provided with in piles, the step (31) is calculated according to the following formula,
has the advantages that: compared with the prior art, the invention has the following remarkable advantages:
for the defects of the known pile arrangement method for the foundation treatment of the circular foundation, a composite foundation treatment mode which is more suitable for the circular foundation and is used for annularly arranging piles is provided. A novel foundation treatment pile arrangement thought is provided, and a corresponding annular pile arrangement method and a corresponding calculation formula are provided. The annular pile arrangement mode of the circular foundation is more reasonable in stress, the utilization rate of the peripheral piles is improved, and the problems that the stress of piles at the edge of the foundation is uneven, local piles are fuzzy and pile arrangement is carried out for a plurality of piles are solved. The adoption hoop cloth stake's foundation treatment mode, the replacement rate of composite foundation is convenient for adjust the size as required, and the quantity of cloth stake is convenient for control, and its calculation is also more accurate. The method is not only beneficial to the application of engineering, but also improves the calculation and construction efficiency.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of triangular pile arrangement according to an embodiment of the present invention;
fig. 3 is a schematic view of pile arrangement according to an embodiment of the present invention.
Detailed Description
The technical scheme of the invention is further explained by combining the attached drawings.
The mode of hoop cloth stake is adopted in the arrangement of stake, through the radial pile pitch of adjustment and the pile pitch of hoop, according to the principle that the replacement rate equals, makes every stake equivalent treatment area in the hoop equal. The pile arrangement method of the invention is irrelevant to the shape, structure and type of the section of the pile, has wide applicability and is suitable for foundation piles of various types.
The invention relates to a method for annularly arranging piles of a composite foundation, which comprises the following steps:
firstly, as shown in fig. 1, a center pile is arranged at the center of a target place, and the center pile is taken as the center of a circle.
And arranging x circles of annular pile systems consisting of a plurality of piles outside the central pile, wherein the center of each circle of piles is on the same circumference and is marked as the ith circle of pile ring from inside to outside, and i is 1,2 and 3 … … x. The piles are uniformly distributed in a ring outwards, namely, the arc length between the centers of the piles in the circumferential direction is equal in each ring upwards, the center distance between each ring belt in the radial direction is equal, and the pile distribution is the uniform pile distribution in the circumferential direction.
Taking the diameter d of the piles, distributing n piles in the first circle, distributing 2n piles in the second circle, distributing xn piles in the xth circle, and keeping the circumferential pile spacing of the piles equal;
thirdly, the width of the annular belt of each circle of piles is required to be equal, the radial pile arrangement distance is k times of the diameter of the piles, namely kd, the perimeter of the first circle is 2 pi kd, the perimeter of the second circle is 4 pi d, and the perimeter of the xth circle is 2x pi kd;
and (IV) according to the circumference of the x-th circle and the number of piles distributed on the x-th circle, knowing that the distance between the piles in the circumferential direction is equal to 2 pi kd/n, the width of the soil treatment ring born by each circle of piles is equal to kd, the width of the pile ring where each pile is located is equal, the distance between every two changed rings is equal, and obtaining a sector area of the soil equivalently treated by each pile, wherein the areas of the areas are equal.
The formula of the area replacement rate of the circumferential pile arrangement method pile is as follows:
(I) calculating the equivalent processing area s of a pile of the ith pile ring according to the following formulaiAnd the area replacement rate m of the ith ring of pilei。
Taking the processing annular band of the ring where the pile is located, wherein the annular band is the width of kd/2 on both sides of the central line of the pile, namely the width of the annular band is equal to the radial pile ring interval kd, equally dividing the pile on one ring in the annular direction, wherein the ring is provided with xn piles, and taking the area calculation formula (1) of the equivalent processing area 3, 3 of one pile. And (3) obtaining equivalent processing areas of any pile of the pile ring from the step (1). The area replacement rate is the ratio of the pile area to the equivalent treatment area is m, and is the area replacement rate of the annularly and uniformly distributed piles in the formula (2).
Wherein s isiThe equivalent processing area of a certain single pile on any circle of pile ring; d is the diameter of the pile; x is the xth circle; n is the pile number of the first ring of pile rings; k is the ratio of the distance between the centers of each circle of piles to the diameter of the piles; m isiThe area replacement rate of a certain single pile on any circle of pile ring.
And (II) calculating the equivalent processing area s of the central pile and the area replacement rate m of the central pile.
The equivalent processing area 1 of the central pile is obtained, the equivalent processing area is a circle which takes the circular basic center as the center of the circle and kd/2 as the radius, the formula (3) is calculated, the area replacement rate is the ratio of the pile area to the equivalent processing area and is m, the formula (4) is shown, the formula (4) shows that the center replacement rate is only related to k and is unrelated to the pile diameter and the position of the pile, and the replacement rate of the pile at the center of the annularly distributed pile is only related to the radial distance of the pile.
And thirdly, adjusting n or k to enable the area replacement rate of the central pile to be equal to that of the annular pile.
According to the above annular pile arrangement method and the deduced area replacement rate of the annular pile arrangement, the annular pile arrangement is adopted during the treatment of the circular foundation composite foundation. The area replacement rate of the piles can be adjusted by changing the distance between pile rings and the number of piles on the rings.
Example (b): the treatment of the circular foundation of a certain project adopts the modes of a triangular pile arrangement diagram 2 and a circular pile arrangement diagram 3 respectively. The diameter of the foundation is 9m, the diameter of the piles is 0.5m, the pile spacing of the triangular pile arrangement is 1.5m, and the pile spacing of the annular pile arrangement is 1.5 m. And under the condition of the same pile number and pile arrangement, respectively solving the area replacement rate of the triangular pile arrangement and the annular pile arrangement.
Area replacement rate m of triangular pile arrangement△Comprises the following steps:
replacement rate m of circumferential pile arrangement area○Obtained according to the formula (2)
And under the condition that the distance between the annular piles is equal to that between the triangular pile arrangement piles, the area replacement rate of the annular pile arrangement is approximate to that of the triangle. In the edge area of the triangular pile arrangement, the foundation treatment range is not matched with the upper foundation, the foundation treatment on the edge is uneven, the stress on the edge of the annularly arranged pile foundation is more even, and the problem of uneven treatment of the triangular pile arrangement on the edge area foundation of the foundation is solved.
Claims (1)
1. The method for annularly arranging the piles of the composite foundation is characterized by comprising the following steps of:
(1) arranging a center pile in the center of a target place;
(2) arranging x circles of annular pile systems consisting of a plurality of piles outside the central pile, wherein the center of each circle of piles is on the same circumference and is marked as the ith circle of pile ring from inside to outside, and i is 1,2,3 … … x;
(3) adjusting the distance between piles and the number of piles to make the area replacement rate of each pile on each pile ring equal;
the piles in each pile ring are distributed at equal intervals;
the width of each circle of pile rings is equal;
the step (3) specifically comprises the following steps:
(30) the diameter of each pile is d, n piles are distributed in the first circle, n + (i-1) p piles are distributed in the ith circle, and the circumferential radial pile spacing of each circle of piles is kd;
(31) calculating the equivalent processing area s of a pile of the ith pile ringiAnd the equivalent processing area s of the central pile is calculated, and the area replacement rate m of any pile on the ith circle of pile ring is calculatediAnd the area replacement rate m of the central pile; n, i.e. the ith circle is provided with in piles, the step (31) is calculated according to the following formula,
(32) and adjusting n or k to enable the area replacement rate of the central pile to be equal to that of the annular pile.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011167203.1A CN112554223B (en) | 2020-10-26 | 2020-10-26 | Circumferential pile arrangement method for composite foundation |
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| CN202011167203.1A CN112554223B (en) | 2020-10-26 | 2020-10-26 | Circumferential pile arrangement method for composite foundation |
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| CN112554223A CN112554223A (en) | 2021-03-26 |
| CN112554223B true CN112554223B (en) | 2022-05-20 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2388870C1 (en) * | 2008-12-18 | 2010-05-10 | Федеральное государственное образовательное учреждение высшего профессионального образования "Кубанский государственный аграрный университет" | Construction method of reservoir foundation base |
| CN203096750U (en) * | 2013-01-28 | 2013-07-31 | 中国水电顾问集团西北勘测设计研究院 | Mud flat quicksand soft foundation fan basic pile casing type concrete filling pile device |
| CN103276753A (en) * | 2013-06-06 | 2013-09-04 | 中国中化股份有限公司 | Scattered pile and strong net foundation leveling system for steeled storage tank foundations |
| CN206052755U (en) * | 2016-04-05 | 2017-03-29 | 大唐湖北新能源有限公司 | A kind of piling strtucture of concrete tower |
| CN107220471A (en) * | 2017-07-31 | 2017-09-29 | 青岛理工大学 | The determination method that friction pile groups lay out pile with Bearing Capacity of Composite Foundation |
| CN208280158U (en) * | 2018-04-27 | 2018-12-25 | 武汉炼化工程设计有限责任公司 | A kind of steel storage tank basis composite foundation structure |
-
2020
- 2020-10-26 CN CN202011167203.1A patent/CN112554223B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2388870C1 (en) * | 2008-12-18 | 2010-05-10 | Федеральное государственное образовательное учреждение высшего профессионального образования "Кубанский государственный аграрный университет" | Construction method of reservoir foundation base |
| CN203096750U (en) * | 2013-01-28 | 2013-07-31 | 中国水电顾问集团西北勘测设计研究院 | Mud flat quicksand soft foundation fan basic pile casing type concrete filling pile device |
| CN103276753A (en) * | 2013-06-06 | 2013-09-04 | 中国中化股份有限公司 | Scattered pile and strong net foundation leveling system for steeled storage tank foundations |
| CN206052755U (en) * | 2016-04-05 | 2017-03-29 | 大唐湖北新能源有限公司 | A kind of piling strtucture of concrete tower |
| CN107220471A (en) * | 2017-07-31 | 2017-09-29 | 青岛理工大学 | The determination method that friction pile groups lay out pile with Bearing Capacity of Composite Foundation |
| CN208280158U (en) * | 2018-04-27 | 2018-12-25 | 武汉炼化工程设计有限责任公司 | A kind of steel storage tank basis composite foundation structure |
Non-Patent Citations (1)
| Title |
|---|
| 独立基础下CFG桩复合地基承载力取值;张金海等;《低温建筑技术》;20170731;第39卷(第7期);99-101 * |
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