CN211816266U - Foundation pit supporting device based on steel sheet pile combined vertical diagonal bracing - Google Patents
Foundation pit supporting device based on steel sheet pile combined vertical diagonal bracing Download PDFInfo
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- CN211816266U CN211816266U CN201922181006.4U CN201922181006U CN211816266U CN 211816266 U CN211816266 U CN 211816266U CN 201922181006 U CN201922181006 U CN 201922181006U CN 211816266 U CN211816266 U CN 211816266U
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Abstract
The utility model discloses a foundation pit supporting device based on a combination of a steel sheet pile and a vertical diagonal brace, which relates to the technical field of building construction, and comprises the steel sheet pile, wherein the steel sheet pile is arranged on one side of a basement bottom plate, and the upper part of the steel sheet pile is provided with a crown beam; one side of the crown beam is detachably provided with a vertical inclined strut, and the vertical inclined strut penetrates through the basement bottom plate and is connected with a vertical inclined strut support; the lower part of the vertical inclined strut support is fixedly provided with a support steel sheet pile, and the support steel sheet pile and the steel sheet pile are arranged correspondingly. The utility model discloses comparing with the support of traditional deep basal pit steel sheet pile, material saving, construction speed are fast, and steel sheet pile and vertical bracing can have enough to meet the need, practice thrift the operating expenses.
Description
Technical Field
The utility model relates to a building engineering technical field, concretely relates to excavation supporting device based on vertical bracing is united to steel sheet pile.
Background
With the continuous development of urban construction, the development and utilization of underground space are gradually increased to relieve the problem of shortage of urban land resources, and the project development depth is extended from shallow development to deep development. The construction method is limited by site conditions, saves cost and takes construction period into consideration, and with the increase of excavation depth of the foundation pit, the section of the steel sheet pile used in the traditional steel sheet pile supporting mode is larger and larger, or a steel sheet pile and inner support supporting system is adopted. The traditional steel sheet pile foundation pit support has the defects of long construction period, high cost investment and the like.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a foundation ditch supporting device based on vertical bracing is united to steel sheet pile to solve the above-mentioned defect that leads to among the prior art.
A foundation pit supporting device based on combination of a steel sheet pile and a vertical diagonal brace comprises the steel sheet pile, wherein the steel sheet pile is fixedly arranged on one side of a basement bottom plate, and a crown beam is fixedly arranged at the upper part of the steel sheet pile; one side of the crown beam is detachably provided with a vertical inclined strut, and the vertical inclined strut penetrates through the basement bottom plate and is fixedly connected with a vertical inclined strut support; the lower part of the vertical inclined strut support is fixedly provided with a support steel sheet pile, and the support steel sheet pile and the steel sheet pile are arranged correspondingly.
And a support replacing belt is arranged between the steel sheet pile and the basement bottom plate and is matched with the steel sheet pile.
One side of the vertical inclined strut support is provided with an inclined plane I, and the inclined plane I is matched with the end part of the vertical inclined strut so as to better support the vertical inclined strut.
And one side of the crown beam is provided with an inclined plane II, and the inclined plane II is matched with the end part of the vertical inclined strut so as to be connected with the vertical inclined strut.
And back pressure soil is arranged between the steel sheet pile and the vertical inclined strut and matched with the lower parts of the steel sheet pile and the foundation pit so as to resist deformation during construction.
The utility model has the advantages that:
the utility model adopts the steel sheet pile support and the inner side vertical diagonal brace in the foundation pit, which can resist the lateral soil pressure of the steel sheet pile and replace the inner support of the steel sheet pile; compared with the traditional deep foundation pit steel sheet pile support, the deep foundation pit steel sheet pile support has the advantages of saving materials, being high in construction speed, being capable of transferring steel sheet piles and vertical inclined struts, and greatly saving construction cost.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
The method comprises the following steps of 1-steel sheet pile, 2-top beam, 3-support steel sheet pile, 4-vertical diagonal brace support, 5-vertical diagonal brace, 6-back pressure soil, 7-basement bottom plate, 8-support changing belt and 9-filling concrete.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.
A foundation pit supporting device based on combination of steel sheet piles and vertical diagonal braces is shown in figure 1 and comprises steel sheet piles 1, wherein the steel sheet piles 1 are arranged on one side of a basement bottom plate 7, the edges of the steel sheet piles 1, which are located on a foundation pit, play a role in supporting the side faces of the foundation pit, and crown beams 2 are fixedly arranged on the upper portions of the steel sheet piles 1; one side of the crown beam 2 is detachably provided with a vertical inclined strut 5, the vertical inclined strut 5 penetrates through a basement bottom plate 7 and then is connected with a vertical inclined strut support 4, and the vertical inclined strut 5 is obliquely and fixedly arranged between the steel sheet pile 1 and a support steel sheet pile 3 and can resist the lateral soil pressure of the steel sheet pile 1; the lower part of the vertical inclined strut support 4 is fixedly provided with a support steel sheet pile 3, and the support steel sheet pile 3 is arranged corresponding to the steel sheet pile 1.
Be equipped with between steel sheet pile 1 and the basement bottom plate 7 and trade brace area 8, and trade brace area 8 and cooperate with steel sheet pile 1 to influence the edge structure of foundation ditch when avoiding the later stage to demolish steel sheet pile 1.
One side of vertical bracing support 4 is equipped with inclined plane I, and one side of hat roof beam 2 is equipped with inclined plane II, and the one end and the inclined plane I phase-match of vertical bracing 5, the other end and the inclined plane II phase-match of vertical bracing 5 to better provide the support for vertical bracing 5.
And back pressure soil 6 is arranged between the steel sheet pile 1 and the vertical inclined strut 5, the back pressure soil 6 is matched with the steel sheet pile 1, and the back pressure soil 6 has certain strength and can resist deformation of the vertical strut 5 in the construction process.
The utility model discloses a construction method:
s1, leveling the field: leveling the field by using mechanical equipment according to the field condition;
s2, constructing the steel sheet pile 1 and the support steel sheet pile 3: the support steel sheet piles 3 are usually grouped into 3 groups, and the distance, the axis deviation and the verticality deviation of the steel sheet piles 1 meet the standard requirements;
s3, construction of the crown beam 2: fixedly arranging a crown beam 2 on the upper part of the steel sheet pile 1;
s4, earth excavation: reserving counter pressure soil 6 (the slope of the counter pressure soil is generally 1:1.5), and excavating earthwork to a designed elevation in a segmented and layered mode;
s5, constructing the vertical inclined strut support 4: fixedly arranging a vertical inclined strut support 4 on a support steel sheet pile 3;
s6, constructing the vertical inclined strut 5: the vertical inclined strut 5 is usually made of Q235B welded steel pipes, the section size and the wall thickness are determined through calculation, and the vertical inclined strut 5 is installed according to the drawing size.
S7, back pressure soil 6 excavation: after the vertical inclined strut 5 is installed, the back pressure soil 6 is excavated.
S8, construction of the basement bottom plate 7: and (5) constructing the basement bottom plate 7 according to a design drawing.
S9, replacing the support belt 8: the support changing belt 8 is usually cast by C20 plain concrete, and has special requirements to be calculated and determined.
S10, detaching the vertical inclined strut 5: dismantling the vertical diagonal brace 5 at the upper part of the basement bottom plate 7;
s11, filling concrete for construction: the rest steel pipes (namely the left vertical inclined struts 5) in the basement bottom plate 7 are filled with micro-expansion concrete;
and S12, removing the steel sheet pile 1.
It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of the invention or which are equivalent to the scope of the invention are embraced by the invention.
Claims (5)
1. A foundation pit supporting device based on a combination of a steel sheet pile and a vertical diagonal brace comprises the steel sheet pile (1), and is characterized in that the steel sheet pile (1) is arranged on one side of a basement bottom plate (7), and a crown beam (2) is arranged on the upper portion of the steel sheet pile (1); one side of the crown beam (2) is detachably provided with a vertical inclined strut (5), and the vertical inclined strut (5) penetrates through a basement bottom plate (7) to be connected with a vertical inclined strut support (4); the lower part of the vertical inclined strut support (4) is fixedly provided with a support steel sheet pile (3), and the support steel sheet pile (3) is arranged corresponding to the steel sheet pile (1).
2. The foundation pit supporting device based on steel sheet pile combined vertical bracing according to claim 1, wherein a support replacing belt (8) is arranged between the steel sheet pile (1) and the basement bottom plate (7), and the support replacing belt (8) is matched with the steel sheet pile (1).
3. The foundation pit supporting device based on steel sheet pile combined vertical diagonal brace according to claim 1 or 2, wherein one side of the vertical diagonal brace support (4) is provided with an inclined plane I, and the inclined plane I is matched with the end part of the vertical diagonal brace (5).
4. The foundation pit supporting device based on steel sheet pile combined vertical bracing according to claim 3, wherein one side of the crown beam (2) is provided with an inclined plane II, and the inclined plane II is matched with the end part of the vertical bracing (5).
5. The foundation pit supporting device based on steel sheet pile combined vertical diagonal bracing according to claim 1 or 4, wherein counter pressure soil (6) is arranged between the steel sheet pile (1) and the vertical diagonal bracing (5), and the counter pressure soil (6) is matched with the steel sheet pile (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922181006.4U CN211816266U (en) | 2019-12-07 | 2019-12-07 | Foundation pit supporting device based on steel sheet pile combined vertical diagonal bracing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922181006.4U CN211816266U (en) | 2019-12-07 | 2019-12-07 | Foundation pit supporting device based on steel sheet pile combined vertical diagonal bracing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211816266U true CN211816266U (en) | 2020-10-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922181006.4U Active CN211816266U (en) | 2019-12-07 | 2019-12-07 | Foundation pit supporting device based on steel sheet pile combined vertical diagonal bracing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211816266U (en) |
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2019
- 2019-12-07 CN CN201922181006.4U patent/CN211816266U/en active Active
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