CN112012220B - Double-row pile plate type foundation pit supporting system and construction method thereof - Google Patents
Double-row pile plate type foundation pit supporting system and construction method thereof Download PDFInfo
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- CN112012220B CN112012220B CN202010750110.5A CN202010750110A CN112012220B CN 112012220 B CN112012220 B CN 112012220B CN 202010750110 A CN202010750110 A CN 202010750110A CN 112012220 B CN112012220 B CN 112012220B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
- E02D19/18—Restraining of underground water by damming or interrupting the passage of underground water by making use of sealing aprons, e.g. diaphragms made from bituminous or clay material
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/24—Prefabricated piles
- E02D5/28—Prefabricated piles made of steel or other metals
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- General Life Sciences & Earth Sciences (AREA)
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- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a double-row pile plate type foundation pit supporting system and a construction method thereof, wherein the system comprises: the pipe pile comprises two rows of pipe rows, wherein each row of pipe rows comprises a plurality of pipe piles, and the pipe piles in the two rows of pipe rows are arranged oppositely in pairs; the connecting assembly is arranged between two adjacent tubular piles in each row of the tubular piles and is uniform in depth with the tubular piles, the connecting assembly comprises an inner sleeve which is vertically arranged and an outer sleeve which is tightly sleeved on the inner sleeve, one side of the outer sleeve is provided with an opening which extends upwards from the bottom end, one of the two adjacent tubular piles is in seamless connection with the outer sleeve, and the other tubular pile is in seamless connection with one side of the inner sleeve which penetrates out of the opening; and the supporting pieces are used for supporting two rows of the tubular piles and are arranged between the tubular piles. The invention effectively solves the problems of low strength and poor bending resistance of the existing single-row steel structure pile.
Description
Technical Field
The invention relates to the technical field of constructional engineering, in particular to a double-row pile plate type foundation pit supporting system and a construction method thereof.
Background
The foundation pit support is a supporting, retaining, reinforcing and protecting measure adopted for the side wall of the foundation pit and the surrounding environment in order to ensure the safety of the construction of an underground structure and the surrounding environment of the foundation pit. At present, a foundation pit support in a soft soil area is mainly divided into a reinforced concrete structure and a steel structure according to materials, a reinforced concrete structure foundation pit support system mainly comprises an underground continuous wall, a cast-in-situ bored pile and the like, and a steel structure foundation pit support system mainly comprises an SMW construction method pile, a steel pipe pile and the like. The steel structure foundation pit fender pile has the advantages of high construction speed, wide adaptability, recoverability and the like, and is widely applied to foundation pit fender engineering. However, due to the problems of low strength, poor bending resistance and the like of the steel structure piles, the steel structure piles can only be suitable for foundation pits with shallow depth, and for deep foundation pits, reinforced concrete structure foundation pit supporting systems such as cast-in-situ bored piles or underground continuous walls are generally adopted.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a double-row pile plate type foundation pit supporting system and a construction method thereof, and effectively solves the problems of low strength and poor bending resistance of the existing single-row steel structure pile.
In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a double row pile board formula excavation supporting system, includes:
the pipe pile comprises two rows of pipe rows, wherein each row of pipe rows comprises a plurality of pipe piles, and the pipe piles in the two rows of pipe rows are arranged in a pairwise opposite mode;
the connecting assembly is arranged between two adjacent tubular piles in each row of tubular piles and is uniform in depth with the tubular piles, the connecting assembly comprises an inner sleeve pipe which is vertically arranged and an outer sleeve pipe which is tightly sleeved on the inner sleeve pipe, one side of the outer sleeve pipe is provided with an opening which extends upwards from the bottom end, one of the two adjacent tubular piles is connected with the outer sleeve pipe in a seamless mode, and the other tubular pile is connected with one side, penetrating out of the opening, of the inner sleeve pipe in a seamless mode;
and the supporting pieces are used for supporting two rows of the tubular piles and are arranged between the two rows of the tubular piles.
Optionally, the support piece is the connecting plate of vertical setting, the both ends of connecting plate respectively detachably with two rows relative or dislocation set up in the bank of tubes two the tubular pile is connected.
Optionally, one support member is respectively arranged between every two opposite tubular piles in the two rows of tubular piles.
Optionally, two rows of pipe is arranged the tubular pile is vertical fixedly connected with trusteeship on relative one side, be equipped with from the top downwardly extending on the trusteeship, supply the spout that the connecting plate removed, the connecting plate is located tip in the trusteeship has set firmly the width and is greater than the pterygoid lamina of spout.
Optionally, the upper end of the wing plate is transversely extended with a hanging lug which is erected on the upper end of the supporting pipe.
Optionally, a notch for the lug to be clamped is formed at the top end of the supporting tube.
Optionally, a reinforcing plate is fixedly arranged between the two sides of the supporting tube and the tubular pile.
And the construction method of the double-row pile plate type foundation pit supporting system comprises the following steps:
constructing two rows of pipe rows at the designed construction position of a foundation pit support, and enabling outer sleeves of a plurality of pipe piles in each row of pipe rows to be sleeved on inner sleeves of another adjacent pipe pile;
and installing a support piece between the two tubular piles which are arranged in the two rows of the tubular piles in a relative or staggered manner.
Optionally, the support member is a vertically arranged connecting plate, the number of the connecting plates is the same as the number of the tube piles in each tube row, and the step of installing the support member includes the steps of: and connecting the two ends of the plurality of connecting plates with every two oppositely arranged tubular piles in the two rows of tubular piles respectively.
Due to the adoption of the technical scheme, the invention has the following beneficial effects: even the board is constituteed between by double steel-pipe pile and stake, and support intensity is big, the wholeness is good, can effectively solve current single steel construction pile intensity low, the poor problem of bending resistance, and the foundation ditch is inside need not be under construction and supports in addition, improves foundation ditch excavation rate greatly, effectively shortens foundation ditch excavation time, and simultaneously, steel-pipe pile and even board all can retrieve and recycle, improve green construction level greatly.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 shows a schematic overall structure diagram of an embodiment of a double-row pile plate type foundation pit supporting system according to the invention.
Fig. 2 shows a partial structural schematic diagram of an embodiment of a double-row pile plate type foundation pit supporting system according to the invention.
Fig. 3 shows a schematic structural diagram of a connecting plate in an embodiment of the double-row pile plate type foundation pit supporting system.
Fig. 4 shows a schematic side structural view of an embodiment of the double-row pile plate type foundation pit supporting system according to the invention.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.
The invention is described in further detail below with reference to the figures and specific embodiments.
As shown in fig. 1 to 4, the double-row pile plate type foundation pit supporting system according to the embodiment of the present invention includes: two rows of oppositely arranged tube rows, wherein each tube row comprises a plurality of tube piles 1 which are vertically arranged, and the tube piles 1 in the two rows of tube rows are oppositely arranged in pairs; the connecting assembly is arranged between two adjacent tubular piles 1 in each row of the tubular piles, the depth of the connecting assembly is uniform with that of the tubular piles 1, the connecting assembly comprises an inner sleeve 3 which is vertically arranged and an outer sleeve 2 which is tightly sleeved on the inner sleeve 3, one side of the outer sleeve 2 is provided with an opening which extends upwards from the bottom end, one tubular pile 1 of the two adjacent tubular piles 1 is connected with the outer sleeve 2 in a seamless mode, and the other tubular pile 1 is connected with one side, penetrating out of the opening, of the inner sleeve 3 in a seamless mode; and the support piece 4 is used for supporting the two rows of tubular piles 1 and is arranged between the two rows of tubular piles 1.
In this embodiment, the length of the inner sleeve 3, the length of the outer sleeve 2, and the length of the tubular pile 1 are the same, and the height of the upper end and the lower end are the same, and the opening on the outer sleeve 2 penetrates from the bottom end to the top end, so that the outer sleeve 2 can be completely sleeved outside the inner sleeve 3. The inner diameter of the outer sleeve 2 is consistent with the outer diameter of the inner sleeve 3, so that the outer sleeve 2 can be tightly sleeved on the inner sleeve 3, and a certain waterproof effect is achieved.
Wherein, support piece 4 is the connecting plate 41 of vertical setting, and the both ends of connecting plate 41 detachably respectively are connected with two tubular pile 1 of relative setting in two rows of banks of tubes, and the preferred is arranged in two rows of tubes and is equipped with a connecting plate 41 between every two relative tubular pile 1 respectively to increase its steadiness. In some other embodiments, the connecting plate 41 may connect two tube piles 1 that are misaligned to form an inclined or crossed support structure.
Further, as shown in fig. 2, a supporting tube 5 for supporting a connecting plate 41 is fixedly connected to the tubular pile 1 in a vertical manner, the supporting tube 5 is fixedly arranged on one side of the tubular pile opposite to another row of tubular piles, a sliding opening extending downwards from the top end is formed in the supporting tube 5 and used for moving the connecting plate 41, a wing plate 42 with a width larger than the sliding opening is fixedly arranged at the end part of the connecting plate 41 in the supporting tube 5, the wing plate 42 at the end part of the connecting plate 41 can be inserted into the supporting tube 5 from the upper end of the supporting tube 5 through the sliding opening, the connecting plate 41 is positioned between the two rows of tubular piles 1 and is more stable and less prone to shaking due to the arrangement of the wing plate 42, and the connecting plate is not prone to transversely move out of the sliding opening.
More preferably, in this embodiment, the centers of circles of the outer sleeve 2, the inner sleeve 3 and the tubular pile 1 are located on the same straight line, so that the width of the tube bank connected under the condition of using the same number of structural members is the largest, and a circle center connecting line of the support tube 5 and the tubular pile 1 is perpendicular to a circle center connecting line of the outer sleeve 2 and the inner sleeve 3.
The support tube 5 and the support member 4 may be disposed only on the upper half of the tube pile 1, and do not need to have the same depth as the tube pile 1, in this embodiment, the support tube 5 has the same depth as the tube pile 1, and the support member 4 is only a short length disposed on the upper half of the tube pile 1, as shown in fig. 4.
Furthermore, as shown in fig. 3 and 4, the upper end of the wing plate 42 is transversely extended with a hanging lug 43 erected on the upper end of the supporting tube 5, the top end of the supporting tube 5 is provided with a notch for the hanging lug 43 to be clamped, when the sliding opening on the supporting tube 5 penetrates to the bottom of the supporting tube 5, the connecting plate 41 can be hung on the upper portion of the supporting tube 5 through the hanging lug 43 to avoid the connecting plate 41 from sinking downwards along the depth of the sliding opening, and meanwhile, the hanging lug 43 is firmly clamped on the upper end of the supporting tube 5 through the notch, so that the connecting plate 41 is more stable. In some other embodiments, the spout on the stem 5 does not extend completely through the stem 5, such that the bottom side wall of the spout can support the bottom end of the web.
In addition, a reinforcing plate 6 is fixedly arranged between two sides of the supporting tube 5 and the tubular pile 1, the reinforcing plate 6 can be as long as the supporting tube 5, and is fixed between the supporting tube 5 and the tubular pile 1 through welding; reinforcing plate 6 also can be square plate, and the length direction equidistance along trusteeship 5 is equipped with a plurality ofly, welds on trusteeship 5 and tubular pile 1 to consolidate trusteeship 5 and tubular pile 1's fixed connection.
Based on the double-row pile plate type foundation pit supporting system provided by the embodiment of the invention, the construction method of the double-row pile plate type foundation pit supporting system provided by the embodiment of the invention is further introduced, and the construction method comprises the following steps:
s1: and (5) paying off at a construction site, and determining the position of the foundation pit support.
S2: according to two rows of pipe rows which are arranged oppositely in foundation pit supporting construction, an outer sleeve 2 of one row of pipe piles 1 is sleeved on an inner sleeve 3 of the other adjacent pipe pile 1 to form continuous supporting, and meanwhile, the water stopping effect is achieved.
Two rows of tube banks are parallel to the foundation ditch edge setting, and one row is located the foundation ditch edge, and one row is apart from the foundation ditch edge slightly far away.
S3: between the two rows of tubes a support 4 is mounted.
S301: the wing plates 42 at both ends of the connecting plate 41 are respectively aligned right above the support tubes 5 of the two opposite tube piles 1.
S302: the wing plates 42 at the two ends of the connecting plate 41 are respectively inserted into the support tubes 5 of the two opposite tubular piles 1 until the lugs 43 at the upper ends of the wing plates 42 are clamped into the notches at the top ends of the support tubes 5.
S4: and repeating the step S3 until a connecting plate 41 is connected between every two opposite pairs of tubular piles 1 in the two rows of tubular piles.
It should be noted that the structures, ratios, sizes, and the like shown in the drawings attached to the present specification are only used for matching the disclosure of the present specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions of the present invention, so that the present invention has no technical essence, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. The utility model provides a double row pile plate type foundation pit support system which characterized in that includes:
the pipe pile comprises two rows of pipe rows, wherein each row of pipe rows comprises a plurality of pipe piles, and the pipe piles in the two rows of pipe rows are arranged in a pairwise opposite mode;
the connecting assembly is arranged between two adjacent tubular piles in each row of tubular piles and is uniform in depth with the tubular piles, the connecting assembly comprises an inner sleeve pipe which is vertically arranged and an outer sleeve pipe which is tightly sleeved on the inner sleeve pipe, one side of the outer sleeve pipe is provided with an opening which extends upwards from the bottom end, one of the two adjacent tubular piles is connected with the outer sleeve pipe in a seamless mode, and the other tubular pile is connected with one side, penetrating out of the opening, of the inner sleeve pipe in a seamless mode;
the supporting piece is used for supporting the two rows of the tubular piles and arranged between the two rows of the tubular piles;
the supporting piece is a connecting plate which is vertically arranged, and two ends of the connecting plate are respectively detachably connected with two tubular piles which are oppositely or staggered in two rows of tubular piles; the tubular piles in the two rows of tube rows are vertically and fixedly connected with supporting tubes on one opposite side, the supporting tubes are provided with sliding openings which extend downwards from the top ends and are used for moving connecting plates, and wing plates with the widths larger than the sliding openings are fixedly arranged at the end parts of the connecting plates in the supporting tubes;
the upper end of the wing plate is transversely extended with a hanging lug erected at the upper end of the supporting tube.
2. The double row pile plate type foundation pit supporting system according to claim 1, wherein one supporting member is arranged between every two oppositely arranged pipe piles in the two rows of pipe piles respectively.
3. The double row pile plate type foundation pit supporting system according to claim 1, wherein a notch for the hanging lug to clamp is formed in the top end of the supporting pipe.
4. The double row pile plate type foundation pit supporting system according to claim 1, wherein reinforcing plates are fixedly arranged between two sides of the support pipe and the pipe piles.
5. A construction method of a double row pile plate type foundation pit supporting system according to any one of claims 1 to 4, characterized by comprising the following steps:
constructing two rows of pipe rows at the designed construction position of a foundation pit support, and enabling outer sleeves of a plurality of pipe piles in each row of pipe rows to be sleeved on inner sleeves of another adjacent pipe pile;
and installing a support piece between the two tubular piles which are arranged in the two rows of the tubular piles in a relative or staggered manner.
6. The construction method according to claim 5, wherein the support members are vertically arranged connection plates, the number of the connection plates is the same as the number of the tube piles in each row of the tube rows, and the step of installing the support members comprises the steps of: and connecting the two ends of the plurality of connecting plates with every two oppositely arranged tubular piles in the two rows of tubular piles respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010750110.5A CN112012220B (en) | 2020-07-30 | 2020-07-30 | Double-row pile plate type foundation pit supporting system and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010750110.5A CN112012220B (en) | 2020-07-30 | 2020-07-30 | Double-row pile plate type foundation pit supporting system and construction method thereof |
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| Publication Number | Publication Date |
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| CN112012220A CN112012220A (en) | 2020-12-01 |
| CN112012220B true CN112012220B (en) | 2022-05-20 |
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Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0711136B2 (en) * | 1988-08-26 | 1995-02-08 | 新日本製鐵株式会社 | Water structure |
| JP3051321B2 (en) * | 1995-06-08 | 2000-06-12 | 運輸省港湾技術研究所長 | Double sheet pile structure |
| JP3603424B2 (en) * | 1995-11-02 | 2004-12-22 | 住友金属工業株式会社 | Basement wall and asymmetric closed section steel sheet pile |
| JP2002138478A (en) * | 2000-11-01 | 2002-05-14 | Seiko Kogyo Kk | Erection ruler for steel pipe |
| JP2002349169A (en) * | 2001-05-24 | 2002-12-04 | Nishimatsu Constr Co Ltd | Excavation and steel pipe press-fit method, excavation and steel pipe press-fit device and construction method of underground continuous wall |
| CN202559362U (en) * | 2012-04-09 | 2012-11-28 | 东南大学 | Double-row steel sheet pile and H-steel section combined foundation pit supporting structure |
| CN104912082A (en) * | 2014-03-14 | 2015-09-16 | 江苏东合南岩土工程技术研究有限公司 | Inclined assembled double-row steel sheet pile foundation pit supporting structure and construction method thereof |
| CN104975609A (en) * | 2015-07-14 | 2015-10-14 | 上海市水利工程集团有限公司 | Lock catch type steel tube pile cofferdam and construction method |
| CN108547309A (en) * | 2018-05-31 | 2018-09-18 | 欧领特（上海）重型冷轧有限公司 | Lock catch device and its locking notch structure for cofferdam |
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