CN218779499U - Multistage supporting construction of steel sheet pile - Google Patents
Multistage supporting construction of steel sheet pile Download PDFInfo
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- CN218779499U CN218779499U CN202222891430.XU CN202222891430U CN218779499U CN 218779499 U CN218779499 U CN 218779499U CN 202222891430 U CN202222891430 U CN 202222891430U CN 218779499 U CN218779499 U CN 218779499U
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Abstract
The utility model provides a multistage supporting construction of steel sheet pile, include: the main structure comprises a basement bottom plate, brackets and a post-cast strip, wherein the first steel sheet pile and the second steel sheet pile are vertically positioned at the front edge of the side slope; the first waist beam and the second waist beam are respectively positioned on the soil-back sides of the first steel sheet pile and the second steel sheet pile; the first steel support is located between first waist rail and the second steel sheet pile, and the second steel support is located between second waist rail and bracket, and the second steel support is connected with basement bottom plate to the bracket. The utility model has the advantages that: the supporting structure has the advantages of small deformation, good stability, reliable quality, convenient construction, short construction period, advanced technology, wide application range and environmental friendliness, and is a green supporting structure.
Description
Technical Field
The utility model relates to a geotechnical engineering field especially relates to a multistage supporting construction of steel sheet pile for foundation ditch engineering.
Background
In the field of geotechnical engineering, due to implementation of a large number of constructional engineering, the development of foundation pit supporting engineering technology is different day by day, and a plurality of novel structures are developed. In the engineering construction field with large relief, the partial region of the field is often higher in relief, a multi-stage slope is formed after excavation of a foundation pit, the problems of how to set a supporting structure, stability, economy and the like are encountered during supporting, and the conventional supporting mode is difficult to meet the requirements. The foundation pit has the following characteristics: (1) the multistage side slope needs to satisfy all levels of side slopes and the whole side slope is stable, and the cantilever type supporting structure can not satisfy the integral stability or control deformation requirement when the total height is large. (2) Multiple levels of supports are often arranged according to the terrain, and the supports at different levels are cooperatively stressed and mutually influenced. (3) The edge of the field is adjacent to the red line, and pile anchor support cannot be adopted. Due to the limitation of terrain and space in pits, large-area horizontal support cannot be adopted.
Therefore, it is necessary to research a foundation pit support to solve the problems of how to set a suitable supporting structure, stability, economic requirements, and preventing the influence of excavation of the foundation pit on the surrounding environment.
Disclosure of Invention
In order to solve the above-mentioned problem that multistage side slope faces, the utility model provides a multistage supporting construction of steel sheet pile has solved multistage side slope supporting construction setting, stability and economic nature problem effectively, provides an effectual supporting construction for multistage side slope support.
The utility model provides a multistage supporting construction of steel sheet pile, includes: first order is strutted, second level is strutted and major structure, slope and first slip casting reinforcement body are put including first steel sheet pile, first waist rail, first steel shotcrete, pile bolck to first order is strutted, second level is strutted including second steel sheet pile, second waist rail, second steel shotcrete, is stayed soil and second slip casting reinforcement body, major structure includes basement bottom plate, bracket and post-cast strip.
The first steel sheet pile is vertically positioned at the rear edge of a side slope, the first steel sheet pile is inserted into the first grouting reinforcement body, the pile top slope is positioned at the rear edge of the first steel sheet pile, and the first waist rail is positioned on the soil-back side of the first steel sheet pile; the second steel sheet pile is vertically positioned at the front edge of the side slope, the second steel sheet pile is inserted into the second grouting reinforcement body, the second wale is positioned on the back soil side of the second steel sheet pile, and the first steel support is connected with the first wale and the second steel sheet pile; the reserved soil is positioned at the front edge of the second steel sheet pile; the second steel shotcrete is connected the second waist rail with the bracket, the bracket is located basement bottom plate top surface, the basement bottom plate is located second steel shotcrete leading edge, the post-cast strip is located basement bottom plate side boundary department.
Furthermore, all welded connection between first steel sheet pile, first waist rail, first steel shotcrete, second steel sheet pile, second waist rail, second steel shotcrete and the bracket.
Further, the first wale and the second wale are angle steel, rib plate and channel steel welding pieces.
Further, the first wale and the second wale are horizontally connected to the soil-back side of the first steel sheet pile and the soil-back side of the second steel sheet pile respectively.
Further, the first steel support is obliquely positioned between the first waist rail and the second steel sheet pile; the second steel support is obliquely positioned between the second waist rail and the corbel.
Furthermore, the first grouting reinforcement body and the second grouting reinforcement body are both mixed reinforcement bodies of cement slurry and soil.
Furthermore, the remained soil is an undisturbed soil body, and a slope surface is hung with a net and sprayed with concrete to form a protective surface.
Furthermore, the basement bottom plate is buried anchor plate and is connected with the bracket.
The utility model provides a beneficial effect that technical scheme brought is: the supporting structure has the advantages of small deformation, good stability, reliable quality, convenient construction, short construction period, advanced technology, wide application range and environmental friendliness, and is a green supporting structure.
Drawings
The invention will be further explained with reference to the drawings and examples, wherein:
fig. 1 is a sectional view of a multi-stage supporting structure of a steel sheet pile according to an embodiment of the present invention;
fig. 2 is a sectional view of a steel sheet pile multistage supporting construction wale in the embodiment of the present invention.
In the drawings: 1-first-stage support, 2-second-stage support, 3-main structure, 1.1-first steel sheet pile, 1.2-first waist beam, 1.3-first steel support, 1.4-pile top slope, 1.5-first grouting reinforcement body, 2.1-second steel sheet pile, 2.2-second waist beam, 2.3-second steel support, 2.4-soil retention, 2.5-second grouting reinforcement body, 3.1-basement bottom plate, 3.2-bracket and 3.3-post-pouring belt.
Detailed Description
In order to clearly understand the technical features, objects and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
The embodiment of the utility model provides a be located the urban area, and the place landform is for denudating longgao hillock district, and the terrain is higher in north side place, is higher than positive and negative zero 5.0 meters, plans to build house building foundation pit dark 5.5 meters, and all ring edge border condition is complicated, and engineering geological conditions is better, and foundation ditch lateral wall soil layer is according to for filling out soil, old cohesive soil, and foundation ditch importance level is the one-level. The foundation pit supporting needs to solve the problems of how to set a proper supporting structure, stability, economic requirements, prevention of influence of foundation pit excavation on the surrounding environment and the like. In order to solve the problem, adopt the utility model provides a pair of steel sheet pile multi-stage supporting structure. The supporting structure is provided with a 2-level support, soil pressure is transmitted to a main structure through the first steel support and the second steel support, and the steel supports can restrain the lateral deformation and the overturning of the steel sheet piles as fulcrums to stabilize the side slope. The supporting structure mainly uses steel, has short construction period, can be repeatedly used, has economic manufacturing cost, small deformation, good stability, environmental protection and advanced technology. The steel sheet pile is a wall plate type pile body with a certain thickness, can be repeatedly used in foundation pit supporting engineering for a large amount of application, and has the advantages of reliable quality, good durability and waterproofness, repeated use, high construction efficiency, environmental friendliness and the like. Because the pile body rigidity is less, the deformation control effect is not ideal, often combine other support measures to use. The inclined strut is a strut member arranged in the foundation pit and forming a certain angle with the horizontal plane, and has the advantages of definite stress, good stability, small occupied space, economy and the like.
As shown in fig. 1-2, a steel sheet pile multi-stage supporting structure specifically includes: 1, a plurality of second level are strutted to a plurality of first levels and 2 and a plurality of major structure 3, slope 1.4 and first slip casting reinforcement body 1.5 are put including first steel sheet pile 1.1, first wainscot 1.2, first steel shotcrete 1.3, pile bolck to the first level, the second level is strutted 2 and is included second steel sheet pile 2.1, second wainscot 2.2, second steel shotcrete 2.3, is stayed soil 2.4 and second slip casting reinforcement body 2.5, major structure 3 includes basement bottom plate 3.1, bracket 3.2 and post-cast strip 3.3.
The first steel plate pile 1.1 is vertically positioned at the rear edge of the side slope; the second steel sheet pile 2.1 is vertically positioned at the front edge of the side slope (namely the side of the foundation pit); the first wale 1.2 and the second wale 2.2 are horizontally positioned on the soil-back side of the first steel sheet pile 1.1 and the second steel sheet pile 2.1 respectively; the first steel support 1.3 is obliquely positioned between the first waist rail 1.2 and the second steel sheet pile 2.1; the slope 1.4 is located at the rear edge of the first steel sheet pile 1.1; the first grouting reinforcement body 1.5 is located at the lower part of the first steel sheet pile 1.1. The second steel support 2.3 is obliquely positioned between the second waist rail 2.2 and the bracket 3.2; the reserved soil 2.4 is positioned at the front edge of the second steel plate pile 2.1; and the second grouting reinforcement body 2.5 is positioned at the lower part of the second steel sheet pile 2.1. The basement bottom plate 3.1 is positioned at the front edge of the second steel support 2.3, the bracket 3.2 is positioned on the top surface of the basement bottom plate 3.1, and the second steel support 2.3 is connected with the basement bottom plate 3.1; the post-cast strip 3.3 is positioned at the side boundary of the basement bottom plate 3.1.
First steel sheet pile 1.1, first waist rail 1.2, first steel shotcrete 1.3, second steel sheet pile 2.1, second waist rail 2.2, second steel shotcrete 2.3 and bracket 3.2 between all welded connection.
The first wale 1.2 and the second wale 2.2 are angle steel, rib plate and channel steel welding pieces. The first waist rail 1.2 and the second waist rail 2.2 are horizontally connected to the soil-back side of the first steel sheet pile 1.1 and the second steel sheet pile 2.1 respectively. First steel shotcrete 1.3 slope is connected first waist rail 1.2 and second steel sheet pile 2.1, second steel shotcrete 2.3 slope is connected second waist rail 2.2 with bracket 3.2.
The first grouting reinforcement body 1.5 and the second grouting reinforcement body 2.5 are both mixed reinforcement bodies of cement grout and soil bodies formed through a grouting process.
The remained soil 2.4 is an original soil body, and a slope surface is hung with a net and sprayed with concrete to form a protective surface.
The bracket 3.2 embeds the anchor plate when the basement bottom plate 3.1 pours concrete.
The construction method of the steel sheet pile multistage supporting structure comprises the following specific steps:
s1: leveling the field, providing a pile pressing working surface to press the first steel sheet pile 1.1 and the second steel sheet pile 2.1, and constructing a first grouting reinforcement body 1.5 and a second grouting reinforcement body 2.5;
s2: excavating earth layer by layer to the bottom of the first waist rail 1.2 to form a pile top slope 1.4, and installing a first steel waist rail 1.2;
s3: digging earth to the bottom of the second waist rail 2.2 in a layered manner, and mounting the second steel waist rail 2.2 and the first steel support 1.3;
s4: excavating earth to the base layer by layer to form earth 2.4, and carrying out earth-retaining, net-hanging and concrete-spraying construction;
s5: constructing a basement bottom plate 3.1 and a bracket 3.2, embedding an anchor plate, and maintaining;
s6: and (3) installing a second steel support 2.3, excavating and removing the remained soil 2.4, and constructing a basement structure in a corresponding area.
The utility model has the advantages that:
1. the supporting structure has large rigidity and small deformation, and fully exerts the stress performance of the material.
2. The supporting structure has good stability and reliable quality. The quality of the steel members at each part is reliable. The lower part of the steel sheet pile is firmly embedded.
3. The construction quality is controllable, and the construction period is short. The supporting structure is composed of common prefabricated steel components, the purchased materials are not limited, the buckling and welding mode is adopted for assembly, the operation is simple and easy, and the construction period is greatly shortened through preprocessing.
4. The method has the advantages of repeated use, low carbon and good economy, and accords with the sustainable development construction concept. The construction is pollution-free and environment-friendly, and the support structure is green and efficient.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, but rather as the following description is intended to cover all modifications, equivalents, and improvements falling within the spirit and principles of the present invention.
Claims (8)
1. The utility model provides a multistage supporting construction of steel sheet pile which characterized in that includes: the concrete pile structure comprises a plurality of first-stage supports (1), a plurality of second-stage supports (2) and a plurality of main structures (3), wherein each first-stage support (1) comprises a first steel plate pile (1.1), a first waist beam (1.2), a first steel support (1.3), a pile top slope (1.4) and a first grouting reinforcement body (1.5), each second-stage support (2) comprises a second steel plate pile (2.1), a second waist beam (2.2), a second steel support (2.3), soil retaining (2.4) and a second grouting reinforcement body (2.5), and each main structure (3) comprises a basement bottom plate (3.1), a bracket (3.2) and a post-cast strip (3.3);
the first steel sheet pile (1.1) is vertically positioned at the rear edge of a side slope, the first steel sheet pile (1.1) is inserted into the first grouting reinforcement body (1.5), the pile top slope (1.4) is positioned at the rear edge of the first steel sheet pile (1.1), and the first waist beam (1.2) is positioned at the soil-back side of the first steel sheet pile (1.1); the second steel sheet pile (2.1) is vertically positioned at the front edge of the side slope, the second steel sheet pile (2.1) is inserted into the second grouting reinforcement body (2.5), the second waist beam (2.2) is positioned on the soil-back side of the second steel sheet pile (2.1), and the first steel support (1.3) is connected with the first waist beam (1.2) and the second steel sheet pile (2.1); the soil (2.4) is positioned at the front edge of the second steel sheet pile (2.1); second steel shotcrete (2.3) are connected second waist rail (2.2) with bracket (3.2), bracket (3.2) are located basement bottom plate (3.1) top surface, basement bottom plate (3.1) are located second steel shotcrete (2.3) leading edge, post-cast strip (3.3) are located basement bottom plate (3.1) side demarcation department.
2. The steel sheet pile multistage supporting structure of claim 1, wherein: all welded connections are arranged among the first steel sheet pile (1.1), the first waist rail (1.2), the first steel support (1.3), the second steel sheet pile (2.1), the second waist rail (2.2), the second steel support (2.3) and the bracket (3.2).
3. The multi-stage supporting structure of steel sheet piles as claimed in claim 1, wherein: the first wale (1.2) and the second wale (2.2) are both angle steel, rib plate and channel steel welding pieces.
4. The steel sheet pile multistage supporting structure of claim 1, wherein: the first waist beam (1.2) and the second waist beam (2.2) are horizontally connected to the soil-back side of the first steel sheet pile (1.1) and the second steel sheet pile (2.1) respectively.
5. The steel sheet pile multistage supporting structure of claim 1, wherein: the first steel support (1.3) is obliquely positioned between the first waist beam (1.2) and the second steel sheet pile (2.1); the second steel support (2.3) is obliquely positioned between the second waist rail (2.2) and the corbel (3.2).
6. The steel sheet pile multistage supporting structure of claim 1, wherein: the first grouting reinforcement body (1.5) and the second grouting reinforcement body (2.5) are both mixed reinforcement bodies of cement slurry and soil.
7. The steel sheet pile multistage supporting structure of claim 1, wherein: the remained soil (2.4) is an undisturbed soil body, and a slope surface is hung with a net and sprayed with concrete to form a protective surface.
8. The steel sheet pile multistage supporting structure of claim 1, wherein: the basement bottom plate (3.1) is embedded with an anchor plate and is connected with the bracket (3.2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222891430.XU CN218779499U (en) | 2022-10-28 | 2022-10-28 | Multistage supporting construction of steel sheet pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222891430.XU CN218779499U (en) | 2022-10-28 | 2022-10-28 | Multistage supporting construction of steel sheet pile |
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| Publication Number | Publication Date |
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| CN218779499U true CN218779499U (en) | 2023-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222891430.XU Active CN218779499U (en) | 2022-10-28 | 2022-10-28 | Multistage supporting construction of steel sheet pile |
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- 2022-10-28 CN CN202222891430.XU patent/CN218779499U/en active Active
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