CN110295607B - Larsen steel sheet pile supporting structure and supporting method - Google Patents
Larsen steel sheet pile supporting structure and supporting method Download PDFInfo
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- CN110295607B CN110295607B CN201910542520.8A CN201910542520A CN110295607B CN 110295607 B CN110295607 B CN 110295607B CN 201910542520 A CN201910542520 A CN 201910542520A CN 110295607 B CN110295607 B CN 110295607B
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- sleeve
- steel sheet
- supporting rod
- larsen steel
- seat
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D11/00—Methods or apparatus specially adapted for both placing and removing sheet pile bulkheads, piles, or mould-pipes
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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
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/02—Sheet piles or sheet pile bulkheads
- E02D5/03—Prefabricated parts, e.g. composite sheet piles
- E02D5/04—Prefabricated parts, e.g. composite sheet piles made of steel
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
The invention discloses a Larsen steel sheet pile supporting structure, which comprises: a plurality of larsen steel sheet piles of squeezing into the soil body, a plurality of larsen steel sheet pile form two rows of structures of parallel arrangement, all be provided with on each row of larsen steel sheet pile and enclose the purlin, two rows enclose to be provided with a plurality of bearing structure between the purlin side in opposite directions, bearing structure includes: the supporting rod is installed into the sleeve, the relative length of the supporting rod is adjustable, and the technical problems that in the prior art, the supporting structure is complex in construction, the environment is affected by the installation process, the installation efficiency is low, and the supporting rod is not easy to turnover and use are solved.
Description
Technical Field
The invention belongs to the field of building construction, and particularly relates to a Larsen steel sheet pile supporting structure and a supporting method.
Background
In the process of supporting the foundation pit, according to a geological survey report and a design drawing, the Larsen steel sheet piles are driven to maintain, the steel supports are connected with the steel purlins, so that inward displacement of the steel sheet piles and the soil body on two sides is limited, and the rigidity, the strength and the overall stability of the pile body are improved. The traditional Larsen steel sheet pile support is arranged in a disassembly mode, the process is complex, and the support rod piece is difficult to be ensured not to be damaged; in the installation process, the wedge block welding operation is existed, thus easily causing fire and environmental protection problems; in the disassembly process, gas cutting and other fire operations are required, the desoldering is difficult, and the quality of the support rod piece is easily influenced; the traditional process has low labor efficiency and large personnel investment; the problems of safety, environmental protection, material turnover quality and difficult disassembly process exist in the process of live-fire welding operation; the problems of monitoring the deformation of the foundation pit and the like cannot be reflected through monitoring the deformation of the support.
Disclosure of Invention
The invention aims to provide a Larsen steel sheet pile supporting structure and a supporting method, and solves the technical problems that in the prior art, the supporting structure is complex in construction, the installation process has influence on the environment, the installation efficiency is low, and the supporting structure is not easy to use in a turnover mode.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a larsen steel sheet pile support structure comprising: a plurality of larsen steel sheet piles of squeezing into the soil body, a plurality of larsen steel sheet pile form two rows of structures of parallel arrangement, all be provided with on each row of larsen steel sheet pile and enclose the purlin, two rows enclose to be provided with a plurality of bearing structure between the purlin side in opposite directions, bearing structure includes: the supporting rod is arranged in the sleeve, and the relative length of the supporting rod can be adjusted.
According to the Larsen steel sheet pile supporting structure, the length adjusting seat is arranged at the joint of the supporting rod and the sleeve and comprises the supporting rod seat arranged on the supporting rod and the sleeve seat arranged on the sleeve, the positions of the supporting rod seat and the sleeve seat correspond to each other, and the jack is arranged between the supporting rod seat and the sleeve seat to achieve length adjustment of the supporting rod and the sleeve.
According to the Larsen steel sheet pile supporting structure, one end, away from the supporting rod, of the sleeve is a hollow sealing structure, and material inlets and material outlets are formed in the upper side and the lower side of the circumferential direction of the end portion of the sleeve.
According to the Larsen steel sheet pile supporting structure, the hollow sealing structure at the end part of the sleeve is filled with fillers.
According to the Larsen steel sheet pile supporting structure, the sleeve is provided with two expansion screws in a penetrating mode at the position where the filler is located, and the strain gauge is arranged between the two expansion screws.
According to the Larsen steel sheet pile supporting structure, the two ends of the supporting rod, which are opposite to each other, are provided with the positioning hanging plates, and the positioning hanging plates are erected on the surface of the purlin.
The invention relates to a Larsen steel sheet pile supporting method, which comprises the following steps:
s1, driving Larsen steel sheet piles into soil according to design parameters, excavating earth, mounting enclosing purlins, and roughly positioning the sleeves on the enclosing purlins through positioning of the positioning hanging plates;
s2, hoisting the supporting rod by a hoisting tool, inserting one end of the supporting rod into the sleeve, and lapping the other end of the supporting rod on another purlin through the positioning hanging plate to form a temporary support;
s3, a jack is arranged between the support rod seat and the sleeve seat, axial force is applied, and fillers are arranged in a material inlet and a material outlet at the end part of the sleeve seat and are sealed;
s4, installing two expansion screws on the section where the filler of the sleeve seat is located, and installing a strain gauge between the expansion screws;
s5, after the foundation pit construction is completed, opening the material inlet and outlet to enable the filler to flow out, and removing the strain gauge and the expansion screw;
s6, removing the supporting rods and the sleeves, taking down the purlin and pulling out the Larsen steel sheet piles;
and S7, cleaning and classifying the detached parts to finish a supporting process.
According to the Larsen steel sheet pile supporting method, the filler in the step S3 is sand filling, and the sleeve is hammered slightly and the sand filling operation is performed continuously in the sand filling process, so that sand bodies are compacted.
The invention has the following beneficial effects: the invention designs a Larsen steel sheet pile supporting structure and a supporting method, wherein the positioning hanging plate is arranged to surround purlin for connection, socket installation avoids the safety risk that the supporting structure is easy to fall off in installation and disassembly, processes such as welding and wedge adding are reduced, noise and pollution are reduced, the turnover is strong, the operation is safe, efficient, convenient and rapid, green construction is realized, a jack is arranged between a supporting rod seat and a sleeve seat for pressing, the supporting shaft force can be effectively controlled by filling sand in a gap, the supporting shaft force is ensured, the supporting effect is ensured, the length is stable by a sand body which is not easy to compress, the deformation condition of a foundation pit can be well reflected by arranging a strain gauge, the problem of monitoring the displacement of the supporting structure in Larsen steel sheet pile construction is solved, construction data can be timely and effectively monitored, and the construction safety risk is well avoided.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic diagram of an embodiment of the present invention;
fig. 2 is a partially enlarged view of an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 1-2, a larsen steel sheet pile support structure includes: a plurality of larsen steel sheet piles 1 of squeezing into soil body 12, a plurality of larsen steel sheet piles 1 form two rows of structures of parallel arrangement, all are provided with purlin 2 on each row of larsen steel sheet piles 1, two rows be provided with a plurality of bearing structure between 2 facies side of purlin, bearing structure includes: the support rod 3 and the sleeve 4, the sleeve 4 is packed into to the support rod 3, and relative length is adjustable.
In a preferred embodiment of the present invention, a length adjustment seat 6 is disposed at a joint of the support rod 3 and the sleeve 4, the length adjustment seat 6 includes a support rod seat 61 disposed on the support rod 3 and a sleeve seat 62 disposed on the sleeve 4, the support rod seat 61 and the sleeve seat 62 are in corresponding positions, and a jack 7 is disposed between the support rod seat 61 and the sleeve seat 62 to achieve length adjustment of the support rod 3 and the sleeve 4.
In the preferred embodiment of the invention, one end of the sleeve 4, which is far away from the support rod 3, is a hollow sealing structure, and the upper side and the lower side of the circumferential direction of the end part of the sleeve 4 are provided with material inlets and outlets 8.
In a preferred embodiment of the invention, the hollow sealing structure at the end of the sleeve 4 has a filler 9 therein.
In the preferred embodiment of the present invention, two expansion screws 10 are inserted into the sleeve 4 at the position of the filler 9, and a strain gauge 11 is installed between the two expansion screws 10.
In the preferred embodiment of the invention, the two ends of the support rod 3, which are opposite to the sleeve 4, are provided with the positioning hanging plates 5, and the positioning hanging plates 5 are erected on the surface of the surrounding purlin 2.
A Larsen steel sheet pile supporting method comprises the following steps:
s1, driving Larsen steel sheet piles 1 into soil 12 according to design parameters, excavating earth, installing purlins 2, and roughly positioning sleeves 4 on the purlins 2 through positioning of positioning hanging plates 5;
s2, hoisting the supporting rod 3 by using a hoisting tool, inserting one end of the supporting rod 3 into the sleeve 4, and lapping the other end of the supporting rod on the other purlin 2 through the positioning hanging plate 5 to form a temporary support;
s3, a jack 7 is arranged between the support rod seat 61 and the sleeve seat 62, axial force is applied, a filler 9 is arranged in a material inlet and outlet 8 at the end part of the sleeve seat 62, and the material inlet and outlet 8 is sealed;
s4, installing two expansion screws 10 at the section of the sleeve seat 62 where the filler 9 is located, and installing the strain gauge 11 between the expansion screws 10;
s5, after the foundation pit construction is completed, opening the material inlet and outlet 8 to enable the filler 9 to flow out, and removing the strain gauge 11 and the expansion screw 10;
s6, removing the support rod 3 and the sleeve 4, and taking down the purlin 2 and pulling out the Larsen steel sheet pile 1;
and S7, cleaning and classifying the detached parts to finish a supporting process.
In the preferred embodiment of the present invention, the filler 9 in step S3 is sand-poured, and the sleeve (4) is lightly hammered and the sand-pouring operation is performed during the sand-pouring process to compact the sand.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (2)
1. A Larsen steel sheet pile supporting method adopts a Larsen steel sheet pile supporting structure which comprises the following steps: a plurality of larsen steel sheet piles (1) of squeezing into soil body (12), a plurality of larsen steel sheet pile (1) form two rows of structures of parallel arrangement, all be provided with on each row of larsen steel sheet pile (1) and enclose purlin (2), two rows enclose purlin (2) and be provided with a plurality of bearing structure between the side in opposite directions, bearing structure includes: the supporting rod (3) and the sleeve (4), the supporting rod (3) is installed in the sleeve (4) and the relative length is adjustable, a length adjusting seat (6) is arranged at the joint of the supporting rod (3) and the sleeve (4), the length adjusting seat (6) comprises a supporting rod seat (61) arranged on the supporting rod (3) and a sleeve seat (62) arranged on the sleeve (4), the supporting rod seat (61) corresponds to the sleeve seat (62), a jack (7) is arranged between the supporting rod seat (61) and the sleeve seat (62) to realize the length adjustment of the supporting rod (3) and the sleeve (4), one end, far away from the supporting rod (3), of the sleeve (4) is a hollow sealing structure, material inlet and outlet (8) are arranged on the upper side and the lower side of the circumferential direction of the end part of the sleeve (4), and a filler (9) is arranged in the hollow sealing structure on the end part of, sleeve (4) are located filler (9) position department and wear to be equipped with two inflation screws (10), two install strainometer (11) between inflation screw (10), bracing piece (3) and sleeve (4) both ends of carrying on the back mutually all are provided with location link plate (5), location link plate (5) are set up and are enclosing purlin (2) surface, its characterized in that includes following step:
s1, driving Larsen steel sheet piles (1) into a soil body (12) according to design parameters, excavating earth, installing purlins (2), and roughly positioning the sleeve (4) on the purlins (2) through positioning of the positioning hanging plates (5);
s2, hoisting the supporting rod (3) by using a hoisting tool, inserting one end of the supporting rod (3) into the sleeve (4), and lapping the other end of the supporting rod on another purlin (2) through a positioning hanging plate (5) to form a temporary support;
s3, a jack (7) is arranged between the support rod seat (61) and the sleeve seat (62), axial force is applied, and a filler (9) is arranged in a material inlet and outlet (8) at the end part of the sleeve seat (62) and the material inlet and outlet (8) is sealed;
s4, installing two expansion screws (10) at the section where the filler (9) of the sleeve seat (62) is located, and installing a strain gauge (11) between the expansion screws (10);
s5, after the foundation pit construction is finished, opening the material inlet and outlet (8) to enable the filler (9) to flow out, and removing the strain gauge (11) and the expansion screw (10);
s6, removing the supporting rod (3) and the sleeve (4), taking down the purlin (2) and pulling out the Larsen steel sheet pile (1);
and S7, cleaning and classifying the detached parts to finish a supporting process.
2. The method for supporting Larsen steel sheet pile as claimed in claim 1, wherein the filler (9) in step S3 is sand-poured, and the sleeve (4) is lightly hammered and water-pouring operation is performed continuously during the sand-pouring process to compact the sand body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910542520.8A CN110295607B (en) | 2019-06-21 | 2019-06-21 | Larsen steel sheet pile supporting structure and supporting method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910542520.8A CN110295607B (en) | 2019-06-21 | 2019-06-21 | Larsen steel sheet pile supporting structure and supporting method |
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| Publication Number | Publication Date |
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| CN110295607A CN110295607A (en) | 2019-10-01 |
| CN110295607B true CN110295607B (en) | 2021-01-19 |
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| CN201910542520.8A Active CN110295607B (en) | 2019-06-21 | 2019-06-21 | Larsen steel sheet pile supporting structure and supporting method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110725170B (en) * | 2019-10-29 | 2021-04-13 | 中铁二十四局集团南昌铁路工程有限公司 | Pushing device for disassembling integral ballast bed |
| CN110820754A (en) * | 2019-10-31 | 2020-02-21 | 中铁第四勘察设计院集团有限公司 | Supporting structure |
| CN115354647A (en) * | 2022-08-02 | 2022-11-18 | 中国建筑第四工程局有限公司 | Supporting device and method for Larsen steel sheet pile |
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| CN2359331Y (en) * | 1999-02-03 | 2000-01-19 | 上海高仕新技术工程咨询合作公司 | Steel repported added prestressed device |
| CN201857615U (en) * | 2010-11-05 | 2011-06-08 | 上海隧道工程股份有限公司 | Steel support device of double-wedge foundry flask |
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