CN210917382U - Foundation pit supporting structure - Google Patents
Foundation pit supporting structure Download PDFInfo
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- CN210917382U CN210917382U CN201921071922.6U CN201921071922U CN210917382U CN 210917382 U CN210917382 U CN 210917382U CN 201921071922 U CN201921071922 U CN 201921071922U CN 210917382 U CN210917382 U CN 210917382U
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Abstract
The utility model discloses a foundation pit supporting structure, which comprises vertical pipes transversely distributed on two side walls in a foundation pit; the vertical pipes are uniformly distributed along the side wall of the foundation pit, the upper end and the lower end of each vertical pipe are respectively anchored into the side wall of the foundation pit through anchor rods, the outer ends of the anchor rods are detachably connected with the vertical pipes, the vertical pipes are vertically and uniformly distributed on one side close to the side wall of the foundation pit, the horizontal pipes are vertically arranged with the vertical pipes and are fixedly connected with the vertical pipes through clamps, and therefore the grid type supporting shed frame is formed; the utility model provides a foundation ditch bearing structure, the structure sets up ingenious and arrange rationally, wherein the standpipe sets up on the foundation ditch lateral wall side by side, in its upper and lower both ends were gone into the foundation ditch lateral wall through the stock anchor, vertical evenly distributed violently manages between the standpipe simultaneously, constitutes grid formula support rack, improve foundation ditch lateral wall stability of support greatly, spout material mechanism and spout the material through violently managing to the foundation ditch lateral wall, improve foundation ditch lateral wall stability greatly, the supporting effect is good, and based on this structure construction simple process, the construction engineering is of high quality.
Description
Technical Field
The utility model relates to a tunnel engineering construction equipment technical field specifically is a foundation ditch bearing structure.
Background
The foundation pit is a soil pit excavated at the design position of the foundation according to the elevation of the foundation and the plane size of the foundation. Before excavation, an excavation scheme is determined according to geological and hydrological data and the conditions of buildings nearby the site, and waterproof drainage work is performed. The persons with low excavation depth can use the method of putting side slope to make the earth slope stable, and the size of the slope is determined according to the relevant construction project. When a deeper foundation pit and a building adjacent to the deeper foundation pit are excavated, a foundation pit wall supporting method, a concrete-sprayed wall protecting method and a large foundation pit are used, and even an underground continuous wall and a columnar column type bored pile are used for interlocking, so that an outer soil layer is prevented from collapsing; for those who have no influence on nearby buildings, the underground water level can be reduced by a well point method, and slope releasing open cut is adopted; the foundation pit support can be excavated by a natural cold air freezing method and the like in cold regions, and is a retaining, reinforcing and protecting measure for the side wall of the foundation pit and the surrounding environment in order to ensure the safety of the construction of an underground structure and the surrounding environment of the foundation pit.
The existing tunnel foundation pit supporting structure is stiff in structure and single in function, and particularly needs to be matched with an injection mechanism to carry out injection support on the side wall of the foundation pit, so that the structure is bulky and complex, and the installation and the disassembly are inconvenient, and the construction is inconvenient, so that the foundation pit supporting structure is provided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a foundation ditch bearing structure to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a foundation pit supporting structure comprises vertical pipes which are transversely distributed on two side walls in a foundation pit; the vertical pipes are uniformly distributed along the side wall of the foundation pit, the upper end and the lower end of each vertical pipe are respectively anchored into the side wall of the foundation pit through anchor rods, the outer ends of the anchor rods are detachably connected with the vertical pipes, the vertical pipes are vertically and uniformly distributed on one side close to the side wall of the foundation pit, the horizontal pipes are vertically arranged with the vertical pipes and are fixedly connected with the vertical pipes through clamps, and therefore the grid type supporting shed frame is formed; spray holes are uniformly formed in the side wall of the transverse pipe close to one side of the foundation pit, and pipe joints for connecting a material conveying pipe are arranged at two ends of the transverse pipe; the transverse pipe is connected with the material spraying mechanism through a pipe joint; the foundation pit bottom plate is provided with an inclined strut for supporting the middle part of the outer side of the vertical pipe, and a horizontal strut is arranged between the tops of the vertical pipes on two sides in the foundation pit.
As a further aspect of the present invention: the spray holes on the transverse pipe are distributed in a fan shape on one side of the transverse pipe.
As a further aspect of the present invention: the inclined strut comprises a fixing seat, the fixing seat is installed on a foundation pit bottom plate through a fixing bolt, a fixing sleeve is hinged to the fixing seat, an inclined strut pipe is sleeved on the fixing sleeve, and the outer end of the inclined strut pipe is hinged to the middle of the vertical pipe.
As a further aspect of the present invention: the fixing sleeve and the inclined supporting pipe are evenly provided with pin holes, and the fixing sleeve is fixedly connected with the inclined supporting pipe through a limiting bolt.
As a further aspect of the present invention: horizontal strut including control the first stay pipe and the second stay pipe that align to set up, first stay pipe and second stay pipe one end are connected with both sides standpipe is articulated through fixed hinge respectively, first stay pipe outer end fixedly connected with screw sleeve, screw sleeve can dismantle with first stay pipe and be connected, and the second props pipe outer end fixedly connected with fixing bearing, the last cover of fixing bearing has adjusting screw, the adjusting screw other end and screw sleeve threaded connection, the adjusting screw middle part is provided with the regulation and revolves the handle.
As a further aspect of the present invention: the threaded sleeve is provided with a connecting sleeve near one end of the first supporting pipe, the first supporting pipe is sleeved on the connecting sleeve and is fixedly connected with the connecting sleeve through a connecting bolt, and the first supporting pipe is sleeved on the connecting sleeve when the first supporting pipe and the second supporting pipe are butted.
As a further aspect of the present invention: the material spraying mechanism comprises a movable pump truck, and the movable pump truck is communicated with the transverse pipe through a conveying pipe.
A construction method based on the foundation pit supporting structure is characterized in that: the method comprises the following steps:
s1, installing a supporting structure corresponding to the side wall of the foundation pit according to the structural arrangement, enabling the vertical pipes to be arranged on the side wall of the foundation pit side by side, enabling the upper end and the lower end of each vertical pipe to be anchored into the side wall of the foundation pit through anchor rods, and meanwhile, vertically and uniformly distributing the horizontal pipes to form a grid type supporting shed frame, wherein the horizontal pipes are provided with spray holes which are distributed in a fan shape on one side of the horizontal pipe.
S2, connecting the material spraying mechanism with a pipe joint by a material conveying pipe, so that the material of the material conveying pipe is directly sprayed out from the spray holes of the transverse pipe.
And S3, spraying mortar, concrete or other reinforcing materials on the side wall of the foundation pit through the spray holes of the transverse pipe by adopting the material spraying mechanism.
Compared with the prior art, the utility model discloses the beneficial effect of following several aspects has:
1. the utility model provides a foundation ditch bearing structure, the structure sets up ingenious and arrange rationally, the utility model discloses well standpipe sets up on the foundation ditch lateral wall side by side, in the foundation ditch lateral wall was gone into through the stock anchor in both ends about it, vertical evenly distributed violently managed between the standpipe simultaneously, constitutes grid formula support rack, improves foundation ditch lateral wall support stability greatly, spouts the material mechanism and spouts the material to the foundation ditch lateral wall through violently managing, can spray mortar, concrete or other reinforced material, improves foundation ditch lateral wall stability greatly, and the supporting effect is good.
2. The utility model discloses in violently manage and go up the orifice and be fan-shaped distribution in violently managing one side, spray regime is big, improves spray efficiency.
3. The utility model discloses well ingenious bracing frame that sets up, the convenient regulation of bracing frame height, convenient to detach and installation, convenient construction.
4. The utility model discloses well ingenious horizontal strut that sets up supports at both sides standpipe top, further improves support intensity and stability, in addition the utility model discloses well horizontal strut length can be adjusted, makes things convenient for tensioning horizontal strut, improves the holding power, convenient otherwise dismantles.
5. The construction method based on the structure has the advantages of simple construction, uniform sprayed reinforcing material and improvement of the construction quality after construction.
Drawings
FIG. 1 is a schematic view of a front cross-sectional structure of a foundation pit supporting structure;
FIG. 2 is a cross-sectional view of a cross tube in a foundation pit support structure;
FIG. 3 is a schematic view illustrating the fitting of a vertical tube and a horizontal tube in a foundation pit supporting structure;
FIG. 4 is a schematic structural view of an angle bracket in a foundation pit supporting structure;
FIG. 5 is a schematic structural view of a foundation pit supporting structure with additional horizontal brackets;
FIG. 6 is a schematic structural view of a horizontal strut in a foundation pit supporting structure;
fig. 7 is a schematic view of connection between a first stay tube and a threaded sleeve in a foundation pit supporting structure.
In the figure: 1. a tunnel foundation pit; 1-1, side walls of the foundation pit; 1-2, a foundation pit bottom plate; 2. a vertical tube; 3. an anchor rod; 4. an oblique bracket; 41. a fixed seat; 42. fixing the bolt; 43. fixing the sleeve; 44. a diagonal bracing tube; 45. a pin hole; 46. a limiting bolt; 5. moving the pump truck; 6. a delivery pipe; 7. a transverse tube; 71. spraying a hole; 8. a pipe joint; 9. clamping a hoop; 10. a horizontal strut; 101. a first stay tube; 1011. connecting a sleeve; 1012. connecting a bolt; 102. a threaded sleeve; 103. adjusting the screw rod; 104. adjusting the rotary handle; 105. fixing the bearing; 106. a second stay tube; 107. and (5) fixing the hinge.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
The first embodiment is as follows: please refer to fig. 1-4; a supporting structure of a tunnel foundation pit 1 comprises vertical pipes 2 which are transversely distributed on two side walls in the tunnel foundation pit 1; the vertical pipes 2 are uniformly distributed along the side wall 1-1 of the foundation pit, the upper end and the lower end of each vertical pipe 2 are respectively anchored into the side wall 1-1 of the foundation pit through anchor rods 3, the outer ends of the anchor rods 3 are detachably connected with the vertical pipes 2, the vertical pipes 2 are vertically and uniformly distributed with horizontal pipes 7 close to one side of the side wall 1-1 of the foundation pit, the horizontal pipes 7 are vertically arranged with the vertical pipes 2 and are fixedly connected with the vertical pipes 2 through clamps 9, and a grid type supporting shed frame is formed; spray holes 71 are uniformly formed in the side wall of the transverse pipe 7 close to one side of the tunnel foundation pit 1, and pipe joints 8 for connecting the material conveying pipes 6 are arranged at two ends of the transverse pipe 7; the transverse pipe 7 is connected with the material spraying mechanism through a pipe joint 8; the spray holes 71 on the transverse pipe 7 are distributed in a fan shape on one side of the transverse pipe 7, the spray range is large, and the spray efficiency is improved.
The material spraying mechanism comprises a movable pump truck 5, and the movable pump truck 5 is communicated with a transverse pipe 7 through a material conveying pipe 6.
The foundation pit bottom plate 1-2 is provided with an inclined strut 4 for supporting the middle part of the outer side of the vertical pipe 2, the inclined strut 4 comprises a fixed seat 41, the fixed seat 41 is installed on the foundation pit bottom plate 1-2 through a fixed bolt 42, the fixed seat 41 is hinged with a fixed sleeve 43, the fixed sleeve 43 is sleeved with an inclined strut pipe 44, and the outer end of the inclined strut pipe 44 is hinged with the middle part of the vertical pipe 2; the inclined strut tube 44 can extend and retract in the fixed sleeve 43, so that the height of the inclined strut 4 can be conveniently adjusted, and the inclined strut tube is convenient to detach and install;
the fixing sleeve 43 and the inclined supporting pipe 44 are uniformly provided with pin holes 45, and the fixing sleeve 43 is fixedly connected with the inclined supporting pipe 44 through a limiting bolt 46.
Example two: please refer to fig. 5 to 7; the embodiment adds the following technical features on the basis of the second embodiment:
a horizontal strut 10 is arranged between the tops of the vertical pipes 2 on the two sides in the tunnel foundation pit 1; horizontal strut 10 aligns the first stay tube 101 and the second stay tube 106 that sets up about including, and first stay tube 101 and second stay tube 106 one end are connected with both sides standpipe 2 through fixed hinge 107 are articulated respectively, and first stay tube 101 outer end fixedly connected with threaded sleeve 102, threaded sleeve 102 can dismantle with first stay tube 101 and be connected, and second stay tube 106 outer end fixedly connected with fixing bearing 105, fixing bearing 105 is last to having set adjusting screw 103, and the adjusting screw 103 other end and threaded sleeve 102 threaded connection, adjusting screw 103 middle part is provided with adjusts and revolves handle 104, revolves handle 104 through adjusting and drives adjusting screw 103 and rotate for adjusting screw 103 is flexible in threaded sleeve 102, and then adjusts horizontal strut 10 length, makes things convenient for tensioning horizontal strut 10, improves the holding power, otherwise conveniently dismantles.
Threaded sleeve 102 is close to first stay tube 101 one end and is provided with adapter sleeve, and first stay tube 101 suit is on adapter sleeve 1011 to through connecting bolt 1012 fixed connection, when first stay tube 101 and second stay tube 106 butt joint, first stay tube 101 suit is on adapter sleeve 1011, and adapter sleeve 1011 can stretch out and draw back, makes things convenient for opposite side adjusting screw 103 screw in threaded sleeve 102, treats the level and aligns the back, and is fixed through connecting bolt 1012.
The utility model discloses a theory of operation is: during operation, the vertical pipes 2 are arranged on the side by side of the side wall 1-1 of the foundation pit, the upper end and the lower end of each vertical pipe are anchored into the side wall 1-1 of the foundation pit through the anchor rods 3, meanwhile, the transverse pipes 7 are vertically and uniformly distributed among the vertical pipes 2 to form a grid type supporting shed frame, the supporting stability of the side wall 1-1 of the foundation pit is greatly improved, the material spraying mechanism sprays materials to the side wall 1-1 of the foundation pit through the transverse pipes 7, mortar, concrete or other reinforcing materials can be sprayed, the stability of the side wall 1-1 of the foundation pit is greatly.
The utility model provides a foundation ditch bearing structure, the structure sets up ingenious and arrange rationally, the utility model discloses well standpipe sets up on the foundation ditch lateral wall side by side, in the foundation ditch lateral wall was gone into through the stock anchor in both ends about it, vertical evenly distributed violently managed between the standpipe simultaneously, constitutes grid formula support rack, improves foundation ditch lateral wall support stability greatly, spouts the material mechanism and spouts the material to the foundation ditch lateral wall through violently managing, can spray mortar, concrete or other reinforced material, improves foundation ditch lateral wall stability greatly, and the supporting effect is good.
The utility model discloses in violently manage and go up the orifice and be fan-shaped distribution in violently managing one side, spray regime is big, improves spray efficiency.
The utility model discloses well ingenious bracing frame that sets up, the convenient regulation of bracing frame height, convenient to detach and installation, convenient construction.
The utility model discloses well ingenious horizontal strut that sets up supports at both sides standpipe top, further improves support intensity and stability, in addition the utility model discloses well horizontal strut length can be adjusted, makes things convenient for tensioning horizontal strut, improves the holding power, convenient otherwise dismantles.
The third embodiment is a construction method based on the foundation pit supporting structure, and is characterized in that: the method comprises the following steps:
s1, installing a supporting structure corresponding to the side wall of the foundation pit according to the structural arrangement, enabling the vertical pipes 2 to be arranged on the side by side of the side wall 1-1 of the foundation pit, anchoring the upper end and the lower end of each vertical pipe into the side wall 1-1 of the foundation pit through the anchor rods 3, and meanwhile, vertically and uniformly distributing the transverse pipes 7 among the vertical pipes 2 to form a grid type supporting shed frame, and the spray holes 71 on the transverse pipes 7 are distributed in a fan shape on one side of the transverse pipes.
S2, the material spraying mechanism is connected with the pipe joint 8 by the material conveying pipe 6, so that the material of the material conveying pipe is directly sprayed out from the spray holes 71 of the transverse pipe 7.
And S3, spraying mortar, concrete or other reinforcing materials on the side wall 1-1 of the foundation pit through the spray holes 71 of the transverse pipe 7 by adopting a material spraying mechanism.
The construction method based on the structure has the advantages of simple construction, uniform sprayed reinforcing material and improvement of the construction quality after construction.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.
Claims (7)
1. A foundation pit supporting structure comprises vertical pipes (2) which are transversely distributed on two side walls in a tunnel foundation pit (1), and is characterized in that the vertical pipes (2) are uniformly distributed along the side wall (1-1) of the foundation pit, the upper end and the lower end of each vertical pipe (2) are respectively anchored onto the side wall (1-1) of the foundation pit through anchor rods (3), the outer ends of the anchor rods (3) are detachably connected with the vertical pipes (2), transverse pipes (7) are vertically and uniformly distributed on one side, close to the side wall (1-1) of the foundation pit, of each vertical pipe (2), the transverse pipes (7) are vertically arranged with the vertical pipes (2), and are fixedly connected with the vertical pipes (2) through clamps (9), so that a; spray holes (71) are uniformly formed in the side wall of the transverse pipe (7) close to one side of the tunnel foundation pit (1), and pipe joints (8) for connecting the material conveying pipes (6) are arranged at two ends of the transverse pipe (7); the transverse pipe (7) is connected with the material spraying mechanism through a pipe joint (8); an inclined strut (4) used for supporting the middle part of the outer side of the vertical pipe (2) is arranged on the foundation pit bottom plate (1-2), and a horizontal strut (10) is arranged between the tops of the vertical pipes (2) on the two sides in the tunnel foundation pit (1).
2. A foundation pit support structure according to claim 1, characterized in that the holes (71) in the cross tube (7) are arranged in a fan shape on one side of the cross tube (7).
3. The foundation pit supporting structure according to claim 1, wherein the inclined strut (4) comprises a fixed seat (41), the fixed seat (41) is mounted on the foundation pit bottom plate (1-2) through a fixed bolt (42), a fixed sleeve (43) is hinged on the fixed seat (41), an inclined strut pipe (44) is sleeved on the fixed sleeve (43), and the outer end of the inclined strut pipe (44) is hinged with the middle part of the vertical pipe (2).
4. A foundation pit supporting structure according to claim 3, wherein pin holes (45) are uniformly formed in the fixing sleeve (43) and the bracing tube (44), and the fixing sleeve (43) and the bracing tube (44) are fixedly connected through a limiting bolt (46).
5. The foundation pit supporting structure according to claim 1, wherein the horizontal supporting frame (10) comprises a first supporting pipe (101) and a second supporting pipe (106) which are arranged in a left-right alignment mode, one end of the first supporting pipe (101) and one end of the second supporting pipe (106) are respectively hinged to the vertical pipes (2) on two sides through a fixed hinge (107), a threaded sleeve (102) is fixedly connected to the outer end of the first supporting pipe (101), the threaded sleeve (102) is detachably connected to the first supporting pipe (101), a fixed bearing (105) is fixedly connected to the outer end of the second supporting pipe (106), an adjusting screw rod (103) is sleeved on the fixed bearing (105), the other end of the adjusting screw rod (103) is in threaded connection with the threaded sleeve (102), and an adjusting knob (104) is arranged in the middle of the adjusting screw rod (103).
6. A foundation pit supporting structure according to claim 5, wherein one end of the threaded sleeve (102) close to the first stay tube (101) is provided with a connecting sleeve (1011), and the first stay tube (101) is sleeved on the connecting sleeve (1011) and fixedly connected through a connecting bolt (1012).
7. A foundation pit supporting structure according to claim 1, characterized in that the material spraying mechanism comprises a mobile pump truck (5), and the mobile pump truck (5) is communicated with a transverse pipe (7) through a material conveying pipe (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921071922.6U CN210917382U (en) | 2019-07-09 | 2019-07-09 | Foundation pit supporting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921071922.6U CN210917382U (en) | 2019-07-09 | 2019-07-09 | Foundation pit supporting structure |
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| Publication Number | Publication Date |
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| CN210917382U true CN210917382U (en) | 2020-07-03 |
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| CN201921071922.6U Active CN210917382U (en) | 2019-07-09 | 2019-07-09 | Foundation pit supporting structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110397041A (en) * | 2019-07-09 | 2019-11-01 | 珠海格力市政工程有限公司 | A kind of foundation pit support construction and the construction method based on this structure |
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2019
- 2019-07-09 CN CN201921071922.6U patent/CN210917382U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110397041A (en) * | 2019-07-09 | 2019-11-01 | 珠海格力市政工程有限公司 | A kind of foundation pit support construction and the construction method based on this structure |
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Address after: Room 217, 2 / F, building 3, science and Technology Innovation Park, No.1 harbor, No.1 Jintang Road, Tangjiawan Town, Zhuhai City, Guangdong Province Patentee after: Guangdong Changzheng Construction Co.,Ltd. Address before: Room 105-39996, No. 6 Baohua Road, Hengqin New District, Zhuhai City, Guangdong Province Patentee before: Zhuhai Gree Municipal Engineering Co.,Ltd. |