CN211285622U - Deep basal pit steel sheet pile supporting construction - Google Patents
Deep basal pit steel sheet pile supporting construction Download PDFInfo
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- CN211285622U CN211285622U CN201921306556.8U CN201921306556U CN211285622U CN 211285622 U CN211285622 U CN 211285622U CN 201921306556 U CN201921306556 U CN 201921306556U CN 211285622 U CN211285622 U CN 211285622U
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Abstract
The utility model discloses a deep foundation pit steel sheet pile supporting structure, which comprises a steel sheet pile and a supporting structure component, wherein the steel sheet pile comprises a horizontally arranged bottom plate and an inclined plane plate arranged at the same side of two ends of the bottom plate, one end of the inclined plane plate is connected with the end of the bottom plate, the other end of the inclined plane plate is bent inwards towards the outer side of the inclined plane plate to form a hook groove locking notch, and a grouting pipe is arranged in the locking notch; the supporting structure assembly comprises an inner side guide beam located at the top end of the steel sheet pile and an outer side guide beam located at the bottom end of the steel sheet pile, and positioning piles are arranged on the outer sides of the inner side guide beam and the outer side guide beam. The utility model discloses reference column, inboard nose girder and outside nose girder design make supporting construction more firm, have increased the security performance of equipment, and the design of slip casting pipe can be better more even slip casting fill the cavity that the fore shaft formed, reach sealed effect.
Description
Technical Field
The utility model relates to a building technical field, concretely relates to deep basal pit steel sheet pile supporting construction.
Background
Piling in a deep foundation pit is a common construction method, the traditional piling mode is to insert and beat steel sheet piles in a sludge environment by a guide frame, but the guide frame is easy to loosen to cause axial position deviation, in the process of beating adjacent steel sheet piles back and forth, the steel sheet piles which are beaten later can generate larger lateral pressure to the steel sheet piles which are beaten earlier due to incomplete locking connection, so that the friction among the steel sheet piles is increased and exceeds the friction resistance of a soil body, the steel sheet piles which are beaten earlier can sink again along with the steel sheet piles which are beaten later, in addition, the steel sheet piles in the prior art are easy to deform when being subjected to impact force, thereby influencing the normal use of the steel sheet piles, the stability is poor, once the steel sheet piles are damaged, the safety of constructors can be indirectly threatened, in addition, the performance is single, and the requirements of users can not be well met in the use process, the utility model discloses a new solution is proposed to above problem.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the prior art, the utility model aims to provide a deep basal pit steel sheet pile supporting construction.
In order to solve the above problem, the utility model discloses a technical scheme as follows:
the utility model provides a deep basal pit steel sheet pile supporting construction, includes steel sheet pile 4 and supporting construction subassembly, its characterized in that: the steel sheet pile 4 comprises a bottom plate 5 arranged horizontally and inclined plane plates 6 arranged at the same sides of two tail ends of the bottom plate 5, one end of each inclined plane plate 6 is connected with the tail end of the bottom plate 5, the other end of each inclined plane plate is bent inwards towards the outer side of each inclined plane plate to form a hook groove locking notch 7, and a grouting pipe 8 is arranged in each locking notch 7; the supporting structure assembly comprises an inner side guide beam 1 located at the top end of the steel sheet pile 4 and an outer side guide beam 2 located at the bottom end of the steel sheet pile 4, and positioning piles 3 are arranged on the outer sides of the inner side guide beam 1 and the outer side guide beam 2. When the positioning pile is used, the position of the positioning pile 3 is determined according to measurement paying-off and fixed points, and the inner side guide beam 1 and the outer side guide beam 2 are installed after the positioning pile 3 is fixed.
A grouting pipe 8 is arranged in the locking notch 7, and a fillet structure 9 is arranged between the connecting parts of the bottom plate 5 and the inclined plane plate 6.
The grouting pipe 8 is arranged in the locking notch 7 along the length direction of the steel sheet pile 4, and the length of the grouting pipe 8 is larger than that of the steel sheet pile.
A plurality of steel sheet piles are arranged between the inner guide beam 1 and the outer guide beam 2, two adjacent steel sheet piles 4 are arranged in an inverted manner, adjacent locking notches 7 are mutually hooked to form a cavity, and the grouting pipe 8 is located in the cavity.
The orifice of one end of the grouting pipe 8 is closed, and the orifice of the other end is provided with a detachable cap 10.
And a waterproof assembly is arranged at the bottom in the lock opening.
Waterproof assembly includes mounting plate 11 and expanded rubber pad 12, mounting plate 11 is located fore shaft 7 inboard bottom and with fore shaft inboard bottom fixed connection, expanded rubber pad 12 is located mounting plate 11 surface and with mounting plate 11 fixed connection.
The steel sheet pile 4 is made of one or more of an austenitic stainless steel component, a ferritic stainless steel component, a martensitic stainless steel component and an austenitic-ferritic stainless steel component.
And an anti-corrosion protective layer is arranged outside the steel sheet pile 4 and covers the whole steel sheet pile.
The anticorrosive protective layer is an epoxy resin layer.
When in use, the grouting pipe 8 is fixed in the locking notch of the steel sheet pile, and the cut part of the grouting pipe 8 faces the outer side and forms a cavity of the locking notch. Constructing, namely sequentially connecting a plurality of steel sheet piles together and driving the steel sheet piles into a foundation; the two steel sheet piles are connected through the locking notch, the locking notches 7 are similar to groove shapes and are mutually hooked together, the bent part of each locking notch 7 groove forms a shielding part for the opening part of the other locking notch 7 groove which is mutually connected, a cavity is formed between each groove and the corresponding groove, and the grouting pipe 8 is arranged in the cavity. After the foundation pit is excavated, if the water leakage condition is found at the locking port connecting part of the steel sheet pile, the cover cap 10 of the grouting pipe 8 at the water leakage position is opened, and grouting is performed in the grouting pipe 8 in time. When grouting is carried out in the grouting pipe 8, as the grouting material is clay-bentonite slurry, under the action of certain pressure, the clay-bentonite slurry can permeate into the cavity through the cutting opening of the grouting pipe 8, so that the cavity can be filled and solidified in a short time, and the water stopping effect at the position of the locking opening is achieved.
Compared with the prior art, the utility model has the advantages of:
the utility model discloses well reference column, the cooperation design of inboard nose girder and outside nose girder makes supporting construction more firm, and stability is better, the fillet structure, can reduce the impulsive force that inclined plane board received on the side, this stability effect that can increase equipment simultaneously, the security performance of equipment has been increased, the cavity that the fore shaft formed is filled in better more even slip casting of the design of slip casting pipe, reach sealed effect, make its performance more diversified, the design of anticorrosive coating can be better protect the steel sheet pile, the service life of the anchor rod is prolonged.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic structural view of the steel sheet pile of the present invention;
FIG. 3 is a schematic structural view of the grouting pipe of the present invention;
fig. 4 is a schematic structural view of the locking notch and the waterproof assembly of the present invention.
In the figure, 1-inner guide beam, 2-outer guide beam, 3-positioning pile, 4-steel sheet pile, 5-bottom plate, 6-inclined plane plate, 7-locking notch, 8-grouting pipe, 9-fillet structure, 10-cover cap, 11-fastening plate and 12-expansion rubber pad.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Example 1
As shown in fig. 1 and 2, fig. 3 and 4, a deep foundation pit steel sheet pile supporting structure comprises a steel sheet pile 4 and a supporting structure component, and is characterized in that: the steel sheet pile 4 comprises a bottom plate 5 arranged horizontally and inclined plane plates 6 arranged at the same sides of two tail ends of the bottom plate 5, one end of each inclined plane plate 6 is connected with the tail end of the bottom plate 5, the other end of each inclined plane plate is bent inwards towards the outer side of each inclined plane plate to form a hook groove locking notch 7, and a grouting pipe 8 is arranged in each locking notch 7; the supporting structure assembly comprises an inner side guide beam 1 located at the top end of the steel sheet pile 4 and an outer side guide beam 2 located at the bottom end of the steel sheet pile 4, positioning piles 3 are arranged on the outer sides of the inner side guide beam 1 and the outer side guide beam 2, and the positioning piles 3 are connected with the outer sides of the inner side guide beam 1 and the outer side guide beam 2. When the positioning pile is used, the position of the positioning pile 3 is determined according to measurement paying-off and fixed points, and the inner side guide beam 1 and the outer side guide beam 2 are installed after the positioning pile 3 is fixed.
And a rounding structure 9 is arranged between the connecting parts of the bottom plate 5 and the inclined plane plate 6.
In this embodiment, for better use of the grouting pipe, the grouting pipe 8 is arranged in the locking notch 7 along the length direction of the steel sheet pile, and the structure is simple, the cost is low, and the water stopping reliability is high.
In this embodiment, the length of the grouting pipe 8 is greater than that of the steel sheet pile for better use of the grouting pipe and the steel sheet pile.
In this embodiment, in order to better install the grouting pipe in the locking notch, a plurality of steel sheet piles are transversely arranged between the inner guide beam 1 and the outer guide beam 2, two adjacent steel sheet piles 4 are arranged in an inverted manner, adjacent locking notches 7 are mutually hooked to form a cavity, and the grouting pipe 8 is located in the cavity.
In this embodiment, in order to better use the steel sheet pile, the steel sheet pile body is made of one or more of an austenitic stainless steel member, a ferritic stainless steel member, a martensitic stainless steel member and an austenitic-ferritic stainless steel member, so that the service life of the steel sheet pile body is prolonged.
In this embodiment, the steel sheet pile is externally provided with an anticorrosion protective layer, the anticorrosion protective layer coats the whole steel sheet pile, and the steel sheet pile can be better protected by the anticorrosion protective layer.
In this embodiment, for better use of the anticorrosion protection layer, the anticorrosion protection layer is an epoxy resin layer.
In this embodiment, for better use the slip casting pipe, 8 bottom mouths of tubes of slip casting pipe are sealed, and the top mouth of tube sets up detachable block 10, has made things convenient for the staff to use the slip casting pipe.
In this embodiment, a waterproof assembly is further disposed on the steel sheet pile corresponding to the locking notch. Waterproof assembly includes mounting plate 11 and expanded rubber pad 12, mounting plate 11 is located fore shaft 7 inboard bottom and with fore shaft inboard bottom fixed connection, expanded rubber pad 12 is located mounting plate 11 surface and with mounting plate 11 fixed connection.
The steel sheet pile is a Larsen steel sheet pile.
Example 2
On the basis of example 1, a spud was first fabricated: through design calculation, a positioning pile with a proper length is selected according to different driving depths of deep foundation pits in soft soil areas, meanwhile, a first VI Larsen steel plate pile is designed, and long I-shaped steel with a proper length is welded to manufacture a lock catch positioning pile guide groove, and the positioning pile and the I-shaped steel are welded discontinuously; then, welding a steel member on the IV Larsen steel sheet pile to form a positioning groove, wherein the steel member is discontinuously welded on the central line of the back of the Larsen steel sheet pile; when five Larsen steel sheet piles are driven (the interval is 2 meters), selecting a combined structure for manufacturing the lock catch positioning pile and the Larsen steel sheet pile to position the positioning pile; the inner side guide beam and the outer side guide beam are arranged at the same time, the inner side guide beam supports the system steel purlin by using the inner part of the cofferdam, and then the outer side guide beam is welded on the positioning guide pile for transverse guiding; in the process of inserting and driving the steel sheet piles, two clamps are used for clamping the steel sheet piles in the process, the situation that the pile plane shifts left and right is avoided, the clamps can be manufactured by using proper channel steel, then positioning piles are performed by manufacturing a lock catch positioning pile and Larsen steel sheet pile combined structure, Larsen steel sheet piles are inserted and driven in the left side and the right side in a sub-part mode, and one positioning pile is driven at intervals of 2 meters to correct the deviation; the steel sheet piles are tensioned backwards by utilizing the tension action of the steel wire ropes, so that the steel sheet piles are controlled to incline towards the advancing direction, the connection of locking notches between the adjacent steel sheet piles is controlled, the steel sheet piles are completely butted, and the lateral pressure between the adjacent steel sheet piles is reduced in the inserting and beating process.
When the grouting pipe 8 is used, the grouting pipe 8 is fixed in the locking notch of the steel sheet pile, and the cut part of the grouting pipe 8 faces the outer side and forms a cavity of the locking notch. Constructing, namely sequentially connecting a plurality of steel sheet piles together and driving the steel sheet piles into a foundation; the two steel sheet piles are connected through the locking notch, the locking notches 7 are similar to groove shapes and are mutually hooked together, the bent part of each locking notch 7 groove forms a shielding part for the opening part of the other locking notch 7 groove which is mutually connected, a cavity is formed between each groove and the corresponding groove, and the grouting pipe 8 is arranged in the cavity. After the foundation pit is excavated, if the water leakage condition is found at the locking port connecting part of the steel sheet pile, the cover cap 10 of the grouting pipe 8 at the water leakage position is opened, and grouting is performed in the grouting pipe 8 in time. When grouting is carried out in the grouting pipe 8, as the grouting material is clay-bentonite slurry, under the action of certain pressure, the clay-bentonite slurry can permeate into the cavity through the cutting opening of the grouting pipe 8, so that the cavity can be filled and solidified in a short time, and the water stopping effect at the position of the locking opening is achieved.
The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.
Claims (9)
1. The utility model provides a deep basal pit steel sheet pile supporting construction, includes steel sheet pile (4) and supporting construction subassembly, its characterized in that: the steel sheet pile (4) comprises a bottom plate (5) arranged horizontally and inclined plane plates (6) arranged at the same side of the two tail ends of the bottom plate (5), one end of each inclined plane plate (6) is connected with the tail end of the bottom plate (5), the other end of each inclined plane plate is bent inwards towards the outer side of each inclined plane plate to form a hook groove locking notch (7), and a grouting pipe (8) is arranged in each locking notch (7); the supporting structure assembly comprises an inner side guide beam (1) located at the top end of the steel sheet pile (4) and an outer side guide beam (2) located at the bottom end of the steel sheet pile (4), and positioning piles (3) are arranged on the outer sides of the inner side guide beam (1) and the outer side guide beam (2).
2. The deep foundation pit steel sheet pile supporting structure according to claim 1, characterized in that: and a fillet structure (9) is arranged between the connecting parts of the bottom plate (5) and the inclined plane plate (6).
3. The deep foundation pit steel sheet pile supporting structure according to claim 1, characterized in that: the grouting pipe (8) is arranged in the locking notch (7) along the length direction of the steel sheet pile (4), and the length of the grouting pipe (8) is larger than that of the steel sheet pile.
4. The deep foundation pit steel sheet pile supporting structure according to claim 1, characterized in that: a plurality of steel sheet piles are arranged between the inner side guide beam (1) and the outer side guide beam (2), two adjacent steel sheet piles (4) are arranged in an inverted mode, adjacent locking notches (7) are mutually hooked to form a cavity, and the grouting pipe (8) is located in the cavity.
5. The deep foundation pit steel sheet pile supporting structure according to claim 1, characterized in that: and the orifice of one end of the grouting pipe (8) is closed, and the orifice of the other end of the grouting pipe is provided with a detachable cover cap (10).
6. The deep foundation pit steel sheet pile supporting structure according to claim 1, characterized in that: and a waterproof assembly is arranged at the bottom in the lock opening.
7. The deep foundation pit steel sheet pile supporting structure of claim 6, wherein: waterproof assembly includes mounting plate (11) and inflation rubber pad (12), mounting plate (11) are located fore shaft (7) inboard bottom and with fore shaft inboard bottom fixed connection, inflation rubber pad (12) are located mounting plate (11) surface and with mounting plate (11) fixed connection.
8. The deep foundation pit steel sheet pile supporting structure according to claim 1, characterized in that: and an anti-corrosion protective layer is arranged outside the steel sheet pile (4) and covers the whole steel sheet pile.
9. The deep foundation pit steel sheet pile supporting structure of claim 8, wherein: the anticorrosive protective layer is an epoxy resin layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921306556.8U CN211285622U (en) | 2019-08-13 | 2019-08-13 | Deep basal pit steel sheet pile supporting construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921306556.8U CN211285622U (en) | 2019-08-13 | 2019-08-13 | Deep basal pit steel sheet pile supporting construction |
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| Publication Number | Publication Date |
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| CN211285622U true CN211285622U (en) | 2020-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921306556.8U Active CN211285622U (en) | 2019-08-13 | 2019-08-13 | Deep basal pit steel sheet pile supporting construction |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112281867A (en) * | 2020-10-21 | 2021-01-29 | 福建江夏学院 | Deep foundation pit support based on remote force stability monitoring and construction method |
| CN114525783A (en) * | 2022-02-26 | 2022-05-24 | 中铁二十四局集团有限公司 | Steel sheet pile inserting and driving process and inserting and driving positioning equipment in foundation pit construction |
-
2019
- 2019-08-13 CN CN201921306556.8U patent/CN211285622U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112281867A (en) * | 2020-10-21 | 2021-01-29 | 福建江夏学院 | Deep foundation pit support based on remote force stability monitoring and construction method |
| CN112281867B (en) * | 2020-10-21 | 2021-11-16 | 福建江夏学院 | Construction method of deep foundation pit support based on remote force stability monitoring |
| CN114525783A (en) * | 2022-02-26 | 2022-05-24 | 中铁二十四局集团有限公司 | Steel sheet pile inserting and driving process and inserting and driving positioning equipment in foundation pit construction |
| CN114525783B (en) * | 2022-02-26 | 2024-02-13 | 中铁二十四局集团有限公司 | Steel sheet pile inserting and driving process and inserting and driving positioning equipment in foundation pit construction |
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