CN208346823U - Larsen steel sheet pile supporting construction for foundation pit enclosure - Google Patents
Larsen steel sheet pile supporting construction for foundation pit enclosure Download PDFInfo
- Publication number
- CN208346823U CN208346823U CN201820329919.9U CN201820329919U CN208346823U CN 208346823 U CN208346823 U CN 208346823U CN 201820329919 U CN201820329919 U CN 201820329919U CN 208346823 U CN208346823 U CN 208346823U
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- Prior art keywords
- foundation pit
- steel sheet
- pit enclosure
- sheet pile
- supporting construction
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Abstract
The utility model discloses a kind of Larsen steel sheet pile supporting construction for foundation pit enclosure, it is related to foundation pit enclosure, aim to solve the problem that the problem of prior art is not suitable for supporting large-scale excavation, its key points of the technical solution are that: a kind of Larsen steel sheet pile supporting construction for foundation pit enclosure, the Larsen steel sheet pile being mutually twisted including more, the more Larsen steel sheet piles are formed at least four sides foundation pit enclosure face, each foundation pit enclosure face is respectively and fixedly provided with steel purlin, it further include multiple pouring moldings in the concrete pad of bottom of foundation ditch, the concrete pad upper surface is provided with abutting part, diagonal brace steel pipe is provided between the abutting part and steel purlin.A kind of Larsen steel sheet pile supporting construction for foundation pit enclosure of the utility model, by eliminate the length limitation of supporting steel pipe, and then reaching the technical effect suitable for supporting large-scale excavation using foundation pit bottom surface as supporting point.
Description
Technical field
The utility model relates to foundation pit enclosures, more specifically, it relates to a kind of Larsen steel sheet pile for foundation pit enclosure
Supporting construction.
Background technique
Pattern foundation pit supporting structure is the safety to guarantee Underground Construction and foundation pit surrounding environment, to foundation pit side-wall and peripheral ring
Supporting and retaining system, reinforcing and the safeguard measure that border uses.
People's Republic of China's professional standard " building foundation pit supporting technical regulation " JGJ120-2012 determines pattern foundation pit supporting structure
Justice is as follows: for the safety of main structure construction under protecting field and foundation pit surrounding environment, the provisional supporting and retaining system used to foundation pit adds
Gu, protection and the measure of Groundwater Control.
A kind of dress for reinforcement Larsen steel sheet pile supporting stability that the Chinese patent that notification number is CN205224051U is announced
It sets, is characterized in that: including being located at the steel purlin on the inside of several Larsen steel sheet piles for being mutually twisted connection, if steel purlin includes
The dry H profile steel for being mutually twisted connection is equipped with supporting steel pipe between adjacent and opposite H profile steel.
Adjacent and opposite H profile steel is abutted simultaneously by supporting steel pipe in above scheme, to complete for Larsen steel plate
The reinforcing of stake, but such support pattern is limited to the length of supporting steel pipe, exists and is not suitable for supporting large-scale excavation
Problem；Therefore it needs to propose the new technical solution of one kind to solve the above problems.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of Larsens for foundation pit enclosure
Steel sheet pile supporting construction, by eliminate the length limitation of supporting steel pipe, and then reaching suitable using foundation pit bottom surface as supporting point
Technical effect for supporting large-scale excavation.
The above-mentioned technical purpose of the utility model has the technical scheme that a kind of for foundation pit enclosure
Larsen steel sheet pile supporting construction, the Larsen steel sheet pile being mutually twisted including more, the more Larsen steel sheet piles be formed with to
Few four sides foundation pit enclosure face, it further includes multiple pouring moldings in foundation pit bottom that each foundation pit enclosure face, which is respectively and fixedly provided with steel purlin,
The concrete pad in portion, the concrete pad upper surface are provided with abutting part, are provided with diagonal brace between the abutting part and steel purlin
Steel pipe.
By using above-mentioned technical proposal, in the actual construction process, track delimited by multiple Larsen steel sheet piles along foundation pit
Hammer into soil layer；After the nail of completion Larsen steel sheet pile is set, shallow ridges is dug along Larsen steel sheet pile track, and shallowly to hook bottom as branch
Steel purlin, is fixed on the inner wall of Larsen steel sheet pile by support, so that the integrated connection of multiple Larsen steel sheet piles is realized by steel purlin,
Reach the technical effect of more Larsen steel sheet pile shared soil extruding forces；After completing the fixation of steel purlin, open for the second time
Dig foundation pit, it should be noted that slope soil should be reserved along foundation pit enclosure face track during excavation；Second of excavation
After the completion of foundation pit, concreting hole is dug in slope soil bottom, injection concrete forms coagulation in concreting is cheated
Native seat；After concrete pad hardening, the gradient along slope soil sets up diagonal brace steel pipe, and diagonal brace steel pipe both ends are connected to abutting respectively
Portion and steel purlin；Finally, excavating slope soil, excavation and the support work of entire foundation pit are completed；By above-mentioned work progress, most
It is formed by Larsen steel sheet pile supporting construction eventually are as follows: multiple Larsen steel sheet piles are connected by steel purlin forms complete foundation pit enclosure
Face, diagonal brace steel pipe is to be embedded in the concrete pad of bottom of foundation ditch as supporting point skewed horizontal load foundation pit enclosure face, such supporting
Structure is mutually supported compared in cited paper using two opposite foundation pit enclosure faces, and the length limit of diagonal brace steel pipe is overcome
System, reaches the technical effect gone along with sb. to guard him suitable for large-scale excavation.
The utility model is further arranged to: reinforcement tray is provided between the foundation pit enclosure face and steel purlin, it is described
Reinforce the rectangular triangle of tray side view, one right-angle side is fixed with steel purlin bottom surface, and another right-angle side and foundation pit enclosure face are solid
It is fixed.
By using above-mentioned technical proposal, reinforcement tray is added between steel purlin and foundation pit enclosure face, effectively improves steel
The bonding strength of purlin and foundation pit enclosure face.
The utility model is further arranged to: the corresponding abutting part of inclined-plane face for reinforcing tray, and is offered for oblique
Support the spliced eye of steel pipe insertion.
By using above-mentioned technical proposal, diagonal brace steel pipe top is attached by way of grafting with reinforcement tray, phase
Compared with being simply connected on steel purlin, on the one hand diagonal brace steel pipe top is limited, effectively prevent diagonal brace steel pipe top
It shifts, on the other hand realizes the technical effect that diagonal brace steel pipe is simultaneously supported foundation pit enclosure face and steel purlin, effectively
Improve the support reliability of diagonal brace steel pipe.
The utility model is further arranged to: the abutting part offers the circular arc notch for the insertion of diagonal brace steel pipe bottom end.
By using above-mentioned technical proposal, the bottom end of diagonal brace steel pipe is embedded within arc groove, on the one hand improves diagonal brace steel
On the other hand the bonding strength at tube bottom end and abutting part is realized the limitation for diagonal brace steel pipe bottom end mobility, is held in the palm using reinforcement
Limitation of the block for diagonal brace steel pipe top determines the principle of straight line according to two o'clock, effectively ensures the stability of diagonal brace steel pipe.
The utility model is further arranged to: the diagonal brace steel pipe includes multiple tubing element, and the more pipe fitting head and the tail are removable
Unload connection.
By using above-mentioned technical proposal, diagonal brace steel pipe can be dismantled transported for multiple tubing element during transportation
It is defeated, to avoid the problem for causing transport inconvenient because the length of diagonal brace steel pipe is too long.
The utility model is further arranged to: the adjacent pipe fitting is provided with ring flange interconnection.
By using above-mentioned technical proposal, adjacent pipe fitting is connected using ring flange and forms diagonal brace steel pipe, realizing pipe fitting
Under the premise of being detachably connected, the bonding strength of adjacent pipe sections is effectively improved.
The utility model is further arranged to: the Larsen steel sheet pile supporting construction for foundation pit enclosure further includes arrangement of reinforcement
Bed course, the reinforced bed are covered in foundation pit bottom surface.
By using above-mentioned technical proposal, reinforced bed is covered in foundation pit bottom surface, on the one hand prevents asking for underground water overflow
Topic occurs, and is on the other hand fixed by bottom of the reinforced bed to foundation pit enclosure face, further increases the utility model
Structural strength.
In conclusion the utility model has the following beneficial effects: diagonal brace steel pipe is to be embedded in the concrete of bottom of foundation ditch
Seat reaches to overcome the length limitation of diagonal brace steel pipe as supporting point skewed horizontal load foundation pit enclosure face and is used in large area base
The technical effect of pit enclosure；By adding reinforcement tray, the bonding strength of steel purlin Yu foundation pit enclosure face is effectively improved；Diagonal brace steel
Tube top end is attached by way of grafting with reinforcement tray, to limit diagonal brace steel pipe top, is effectively prevent tiltedly
Support steel pipe top shifts；Diagonal brace steel pipe bottom end is limited by arc groove, to prevent its bottom end from shifting；It is logical
Multiple tubing element composition diagonal brace steel pipe is crossed, to provide convenience for transport；By the way that reinforced bed is arranged, underground water overflow is being prevented
Meanwhile fixation of the realization for foundation pit enclosure face bottom end.
Detailed description of the invention
Fig. 1 is overall structure diagram when the utility model goes along with sb. to guard him foundation pit；
Fig. 2 is the half sectional view of Fig. 1, and attached drawing disassembly has a diagonal brace steel pipe；
Fig. 3 is the portion the A enlarged diagram of Fig. 2, the main structure for indicating to reinforce tray；
Fig. 4 is the structural scheme of mechanism of the utility model diagonal brace steel pipe；
Fig. 5 is that the structural schematic diagram after excavating for the first time is completed with the utility model；
Fig. 6 is to complete the structural schematic diagram after excavating with the utility model second.
Detailed description of the invention: 1, Larsen steel sheet pile；11, foundation pit enclosure face；12, steel purlin；13, concrete pad；14, abutting part；
15, diagonal brace steel pipe；16, reinforce tray；17, spliced eye；18, circular arc notch；19, pipe fitting；20, ring flange；21, reinforced bed.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
For the Larsen steel sheet pile supporting construction of foundation pit enclosure, as shown in Figure 1 and Figure 2, the Larsen being mutually twisted including more
In the concrete pad 13 of bottom of foundation ditch, more Larsen steel sheet piles 1 are formed with four sides foundation pit and enclose for steel sheet pile 1 and multiple pouring moldings
Mask 11, each foundation pit enclosure face 11 are welded with steel purlin 12, and 13 upper surface of concrete pad is integrally formed with abutting part
14, diagonal brace steel pipe 15 is provided between abutting part 14 and steel purlin 12, wherein steel purlin 12 is mutually twisted simultaneously by more I-steel
Reinforcement of weld is formed.
In the actual construction process, as shown in Figure 1 and Figure 2, track being delimited along foundation pit, multiple Larsen steel sheet piles 1 are hammered into soil
Layer；After the nail of completion Larsen steel sheet pile 1 is set, shallow ridges (being shown in Fig. 5) is dug along 1 track of Larsen steel sheet pile, and shallowly to hook bottom
As support, steel purlin 12 is fixedly welded on to the inner wall in the foundation pit enclosure face 11 formed by Larsen steel sheet pile 1, thus by steel
Purlin 12 realizes the integrated connection of multiple Larsen steel sheet piles 1, reaches the skill of 1 shared soil extruding force of more Larsen steel sheet piles
Art effect；After completing the fixation of steel purlin 12, second of excavation pit, it should be noted that should during excavation
Reserve slope soil (being shown in Fig. 6) in track along foundation pit enclosure face 11；After the completion of second of excavation pit, in slope soil bottom
Portion digs concreting hole, and injection concrete forms concrete pad 13 and abutting part 14 in concreting is cheated；Work as coagulation
After native seat 13 hardens, the gradient along slope soil sets up diagonal brace steel pipe 15, and 15 both ends of diagonal brace steel pipe are connected to abutting part 14 respectively
With steel purlin 12；Finally, excavating slope soil, excavation and the support work of entire foundation pit are completed；By above-mentioned work progress, most
It is formed by 1 supporting construction of Larsen steel sheet pile eventually are as follows: the Larsen steel sheet pile 1 of same perpendicular has been formed by the connection of steel purlin 12
Whole foundation pit enclosure face 11, diagonal brace steel pipe 15 is to be embedded in the concrete pad 13 of bottom of foundation ditch as supporting point skewed horizontal load foundation pit
Face 11 is gone along with sb. to guard him, such supporting construction is mutually propped up compared in cited paper using two opposite foundation pit enclosure faces 11
Support, overcomes the length limitation of diagonal brace steel pipe 15, reaches the technical effect gone along with sb. to guard him suitable for large-scale excavation.
For the bonding strength for improving foundation pit enclosure face 11 and steel purlin 12, as shown in Figure 2 and Figure 3, foundation pit enclosure face 11 and steel
It is provided between purlin 12 and reinforces tray 16, reinforce the rectangular triangle of 16 side view of tray, one right-angle side and steel purlin 12
Bottom surface is welded and fixed, and another right-angle side is welded and fixed with foundation pit enclosure face 11, to reinforce tray 16 by adding, effectively improves
The bonding strength in foundation pit enclosure face 11 and steel purlin 12.
To prevent 15 top of diagonal brace steel pipe from shifting, as shown in Figure 1, Figure 2, Figure 3 shows, reinforce the inclined-plane face phase of tray 16
Abutting part 14 is answered, and offers the spliced eye 17 being inserted into for diagonal brace steel pipe 15, to be pushed up by spliced eye 17 and diagonal brace steel pipe 15
Mating, the mobility on limitation 15 top of diagonal brace steel pipe at end, and then prevent 15 top of diagonal brace steel pipe from shifting；To prevent
15 bottom end of diagonal brace steel pipe is partial to, and abutting part 14 offers the circular arc notch 18 for the insertion of 15 bottom end of diagonal brace steel pipe, thus logical
It crosses and the bottom end of diagonal brace steel pipe 15 is embedded in circular arc notch 18, realize the limitation for its bottom end mobility, and then prevent diagonal brace steel
15 bottom end of pipe shifts.
Find, since the design length of diagonal brace steel pipe 15 is longer, there are problems that inconvenient transport, thus in practice
As shown in figure 4, diagonal brace steel pipe 15 includes multiple tubing element 19,19 head and the tail of multiple tubing element are detachably connected, thus during transportation
Diagonal brace steel pipe 15 can be split as to multiple tubing element 19, and then provide convenience for transport；It should be noted that ensure adjacent tubes
The bonding strength of part 19, adjacent pipe sections 19 are provided with the interconnection of ring flange 20, to detachably connect in realization adjacent pipe sections 19
Under the premise of connecing, the bonding strength of adjacent pipe sections 19 is effectively improved.
To prevent the problem of underground water overflow occurs inside foundation pit, as shown in Fig. 2, the utility model further includes being covered in base
The reinforced bed 21 of bottom surface is cheated, reinforced bed 21 is formed by reinforcing bar and concreting, to form one by reinforced bed 21
Layer concrete water barrier effectively prevent underground water overflow problem to occur, simultaneously because the presence of reinforced bed 21, foundation pit enclosure face
11 bottom end is fixed, and the structural strength of the utility model is effectively improved.
Specific embodiment is only the explanation to the utility model, is not limitations of the present invention, this field
Technical staff can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but only
It will be in the scope of the claims of the utility model all by the protection of Patent Law.
Claims (7)
1. a kind of Larsen steel sheet pile supporting construction for foundation pit enclosure, the Larsen steel sheet pile (1) being mutually twisted including more is more
Larsen steel sheet pile (1) described in root is formed at least four sides foundation pit enclosure face (11), and each foundation pit enclosure face (11) is fixed
There are steel purlin (12), it is characterised in that: further include multiple pouring moldings in the concrete pad (13) of bottom of foundation ditch, the concrete
Seat (13) upper surface is provided with abutting part (14), is provided with diagonal brace steel pipe between the abutting part (14) and steel purlin (12)
(15).
2. the Larsen steel sheet pile supporting construction according to claim 1 for foundation pit enclosure, it is characterised in that: the foundation pit
It goes along with sb. to guard him to be provided between face (11) and steel purlin (12) and reinforces tray (16), the rectangular triangle of reinforcement tray (16) side view
Shape, one right-angle side are fixed with steel purlin (12) bottom surface, and another right-angle side and foundation pit enclosure face (11) are fixed.
3. the Larsen steel sheet pile supporting construction according to claim 2 for foundation pit enclosure, it is characterised in that: the reinforcement
The corresponding abutting part of inclined-plane face (14) of tray (16), and offer the spliced eye (17) for diagonal brace steel pipe (15) insertion.
4. the Larsen steel sheet pile supporting construction according to claim 3 for foundation pit enclosure, it is characterised in that: the abutting
Portion (14) offers the circular arc notch (18) for the insertion of diagonal brace steel pipe (15) bottom end.
5. the Larsen steel sheet pile supporting construction according to claim 1 for foundation pit enclosure, it is characterised in that: the diagonal brace
Steel pipe (15) includes multiple tubing element (19), and the more pipe fittings (19) are detachably connected from beginning to end.
6. the Larsen steel sheet pile supporting construction according to claim 5 for foundation pit enclosure, it is characterised in that: adjacent described
Pipe fitting (19) is provided with ring flange (20) interconnection.
7. the Larsen steel sheet pile supporting construction according to claim 3 for foundation pit enclosure, it is characterised in that: described to be used for
The Larsen steel sheet pile supporting construction of foundation pit enclosure further includes reinforced bed (21), and the reinforced bed (21) is covered in foundation pit bottom
Face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820329919.9U CN208346823U (en) | 2018-03-10 | 2018-03-10 | Larsen steel sheet pile supporting construction for foundation pit enclosure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820329919.9U CN208346823U (en) | 2018-03-10 | 2018-03-10 | Larsen steel sheet pile supporting construction for foundation pit enclosure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208346823U true CN208346823U (en) | 2019-01-08 |
Family
ID=64884950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820329919.9U Expired - Fee Related CN208346823U (en) | 2018-03-10 | 2018-03-10 | Larsen steel sheet pile supporting construction for foundation pit enclosure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208346823U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110258582A (en) * | 2019-06-20 | 2019-09-20 | 通州建总集团有限公司 | Bearing diagonal foundation pit supporting construction and construction method based on steel-pipe pile Yu Larsen steel plate |
| CN111705809A (en) * | 2020-06-18 | 2020-09-25 | 深圳市蛇口招商港湾工程有限公司 | Deep foundation pit construction structure and deep foundation pit construction method |
| CN115627767A (en) * | 2022-09-21 | 2023-01-20 | 山东大学 | Recyclable foundation pit inclined supporting structure and construction method |
-
2018
- 2018-03-10 CN CN201820329919.9U patent/CN208346823U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110258582A (en) * | 2019-06-20 | 2019-09-20 | 通州建总集团有限公司 | Bearing diagonal foundation pit supporting construction and construction method based on steel-pipe pile Yu Larsen steel plate |
| CN110258582B (en) * | 2019-06-20 | 2024-07-12 | 通州建总集团有限公司 | Inclined support foundation pit supporting structure based on steel pipe pile and Lassen steel plate and construction method |
| CN111705809A (en) * | 2020-06-18 | 2020-09-25 | 深圳市蛇口招商港湾工程有限公司 | Deep foundation pit construction structure and deep foundation pit construction method |
| CN115627767A (en) * | 2022-09-21 | 2023-01-20 | 山东大学 | Recyclable foundation pit inclined supporting structure and construction method |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190108 Termination date: 20190310 |
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| CF01 | Termination of patent right due to non-payment of annual fee |