CN113445491B - Open cut tunnel adjacent building protection device - Google Patents
Open cut tunnel adjacent building protection device Download PDFInfo
- Publication number
- CN113445491B CN113445491B CN202110812924.1A CN202110812924A CN113445491B CN 113445491 B CN113445491 B CN 113445491B CN 202110812924 A CN202110812924 A CN 202110812924A CN 113445491 B CN113445491 B CN 113445491B
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- China
- Prior art keywords
- frame
- bottom frame
- foundation pit
- underframe
- connecting frame
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
Abstract
The invention discloses a protection device for buildings adjacent to open cut tunnels, which comprises a building body, a foundation pit, a fixed support and a grouting pipe, wherein the building body is positioned on one side of the foundation pit, the distance between the building body and the foundation pit is a safe distance, the foundation pit is excavated from top to bottom, the fixed support is arranged on one side, close to the building body, in the foundation pit, the fixed support comprises a connecting frame and a bottom frame, the connecting frame and the bottom frame are both in front and back open design, the connecting frame is provided with a plurality of connecting frames, the adjacent connecting frames are mutually connected, the connecting frame at the lowest end is connected with the bottom frame, the bottom frame is fixed at the bottom of the foundation pit by using an anchor rod, the grouting pipe is arranged in the connecting frame and the bottom frame, and the grouting pipe can move in the connecting frame and the bottom frame. The invention has reasonable design; thereby the slip casting operation can be carried out to the soil of building body bottom to the slip casting pipe consolidates soil, has strengthened the bearing capacity of ground.
Description
Technical Field
The invention relates to a protection device for buildings adjacent to an open-cut tunnel.
Background
Along with the vehicle is more and more, the condition that the road blocks up is more and more serious, the subway need not occupy ground space as a vehicle, and the subway receives the less construction of consequently subway of external influence more and more extensive, need excavate the tunnel during subway construction, open cut method is with low costs, the fast method of construction, when excavating the tunnel, subaerial some buildings that have, the tunnel excavation needs the matters of paying attention to when protecting the building, current protection device often carries out the sprayed concrete to domatic on the foundation ditch, such protection effect is not good.
Disclosure of Invention
The invention aims to provide a protection device for buildings adjacent to an open cut tunnel, so as to solve the technical problem.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides an open cut tunnel is close to building protection device, includes building body, foundation ditch, fixed bolster, slip casting pipe, the building body is located foundation ditch one side, and the distance between building body and the foundation ditch is safe distance, and the excavation is from the top down to the foundation ditch, and the fixed bolster is installed to one side that is close to the building body in the foundation ditch, the fixed bolster includes link frame, underframe, and open design around link frame and underframe are, and the link frame is equipped with a plurality ofly, adjacent link frame interconnect, and the link frame and the underframe of lower extreme are connected, and the underframe utilizes the stock to fix the bottom at the foundation ditch, and the slip casting pipe is installed in link frame, underframe, and the slip casting pipe can remove in link frame, underframe.
Preferably, the spout has been seted up at the top of carriage, logical groove has been seted up on the both sides wall of carriage, the top of underframe all is equipped with integrated into one piece's grafting piece, the grafting piece is connected with logical groove, the carriage, one side of underframe is equipped with integrated into one piece's fixed plate, install the screens ware on the carriage of fixed plate top, the screens ware is connected the carriage with the fixed plate, the underframe is fixed, the top of underframe, the spout has all been seted up to the interior bottom, one side of underframe is equipped with threaded connection's water injection pipe, the interior bottom of underframe is the fretwork design, and the outlet is installed to one side.
Preferably, the fixed plate highly increases in proper order backward in the past, and the jack has been seted up to the right-hand member of fixed plate, and the screens ware includes limiting plate, spring sleeve, toper post, and the limiting plate welding is in carriage one side, and the bottom of limiting plate is equipped with the spring sleeve of mounting screw, and spring sleeve's end and toper support connnection, toper post and jack are corresponding, and the carriage slowly pushes from the front backward when being connected with the underframe and goes on.
Preferably, the slip casting pipe is the toper design, and slip casting pipe stub end is sealed design, has seted up a plurality of grout outlet on the slip casting pipe, installs a plurality of sealing rings on the slip casting pipe, and the bottom of slip casting pipe is installed and is pushed forward the piece, and the fixed column welding pushes forward the piece and is connected with link frame, underframe on the slip casting pipe.
Preferably, the jacking sheet comprises two metal sheets, the two metal sheets are connected through an arc-shaped part, the spring is installed between the two metal sheets, the fixed shaft is located at the arc-shaped part, the bottom of the fixed shaft is welded with the sliding block, the sliding block is connected with the sliding groove, and the metal sheet above the sliding block is connected with the grouting pipe through a screw.
Preferably, the sealing ring is made of spring pieces, tightening pieces mounted by screws are arranged on two sides of the sealing ring, and the tightening pieces are connected through a screw rod.
Preferably, a plurality of removal posts are installed at the top of link, underframe, remove the post and get into link, underframe, fixed column and removal post phase-match, and a plurality of removal post rebound form a cavity, thereby the fixed column is installed and is carried on spacingly to the slip casting pipe in the cavity, removes post and sleeve sliding connection, and the top of link, underframe is the fretwork design, and the sleeve is installed in link, underframe, and the welding has the fixture block on the removal post that is located link, underframe inside.
Compared with the prior art, the invention has the following advantages: the invention has reasonable design; the fixing support can reinforce the slope surface of the foundation pit, and simultaneously, concrete is injected into the soil at the bottom of the building body by using the grouting pipe, so that the soil is reinforced; the fixed support comprises a connecting frame and a bottom frame, the number of the connecting frame can be increased according to the depth condition of the foundation pit, and the grouting pipe can move in the connecting frame and the bottom frame so as to perform grouting on soil at different positions; the design of the grouting pipe can inject cement slurry into soil below and around the building body, and a sealing ring on the grouting pipe can plug a slurry outlet and leave a required slurry outlet, so that the soil at different positions is grouted; the grouting pipe can freely move on the connecting frame and the bottom frame by utilizing the sliding block, the jacking sheet is compressed when the grouting pipe needs to move, so that the fixed column on the grouting pipe is separated from the moving column, and when the grouting pipe does not need to move, the jacking sheet rises under the action of the spring, and the fixed column pushes the moving column to move upwards so as to limit the fixed column to a cavity formed by the moving column to prevent the fixed column from moving; thereby the water injection pipe on the underframe can carry out the water injection to the underframe and increased the weight of underframe, and then improved the stability of the toe of foundation ditch bottom.
Drawings
Fig. 1 is a schematic view of a protection device for buildings adjacent to an open trench tunnel according to the present invention.
Fig. 2 is a schematic view of the fixing frame and the grouting pipe of the protection device for buildings adjacent to the open trench tunnel according to the present invention.
Fig. 3 is an exploded view of the connecting frame and the bottom frame of the protection device for buildings near the open trench tunnel according to the present invention.
Fig. 4 is a schematic view of a fixing plate of the open cut tunnel adjacent to the building protection device of the present invention.
Fig. 5 is a schematic view of a stopper of the open trench tunnel adjacent to the building protection device of the present invention.
Fig. 6 is a schematic view of a grouting pipe adjacent to the building protection device of the open cut tunnel according to the present invention.
Fig. 7 is a schematic view of a sealing ring of the open cut tunnel adjacent to the building protection device of the present invention.
Fig. 8 is a schematic view of a jacking sheet of the open trench tunnel adjacent to the building protection device of the present invention.
Fig. 9 is a rear view of a connection frame of the open cut tunnel adjacent to the building protection device according to the present invention.
Fig. 10 is a schematic view of the moving pillar of the open trench tunnel adjacent to the building protection device according to the present invention.
Detailed Description
The invention is explained in further detail below with reference to the figures and the specific embodiments.
As shown in fig. 1-10, a protection device for an open-cut tunnel adjacent building comprises a building body 1, a foundation pit 2, a fixed support 3 and grouting pipes 4, wherein the building body 1 is positioned on one side of the foundation pit 2, the distance between the building body 1 and the foundation pit 2 is a safe distance, the foundation pit 2 is excavated from top to bottom, the fixed support 3 is installed on one side, close to the building body 1, in the foundation pit 2, the fixed support 3 comprises a connecting frame 5 and a bottom frame 6, the connecting frame 5 and the bottom frame 6 are both designed to be open front and back, the connecting frame 5 is provided with a plurality of connecting frames 5, the adjacent connecting frames 5 are connected with each other, the connecting frame 5 at the lowest end is connected with the bottom frame 6, the bottom frame 6 is fixed at the bottom of the foundation pit 2 by using anchor rods, the grouting pipes 4 are installed in the connecting frame 5 and the bottom frame 6, the grouting pipes 4 can move in the connecting frame 5 and the bottom frame 6, a chute 9 is arranged at the top of the connecting frame 5, the two side walls of the connecting frame 5 are provided with through grooves 7, the top of the connecting frame 5 and the bottom frame 6 are both provided with integrally formed inserting blocks 8, the inserting blocks 8 are connected with the through grooves 7, one side of the connecting frame 5 and the bottom frame 6 is provided with an integrally formed fixing plate 11, a clamping device 10 is installed on the connecting frame 5 above the fixing plate 11, the clamping device 10 is connected with the fixing plate 11 to fix the connecting frame 5 and the bottom frame 6, the top and the inner bottom of the bottom frame 6 are both provided with sliding grooves 9, one side of the bottom frame 6 is provided with a water injection pipe 12 in threaded connection, the inner bottom of the bottom frame 6 is in a hollow design, one side of the bottom frame 6 is provided with a water drainage hole, the heights of the fixing plate 11 from front to back are sequentially increased, the rightmost end of the fixing plate 11 is provided with a jack 16, the clamping device 10 comprises a limiting plate 13, a spring sleeve 14 and a conical column 15, the limiting plate 13 is welded on one side of the connecting frame 5, the bottom of the limiting plate 13 is provided with a spring sleeve 14 in a screw installation, the tail end of the spring sleeve 14 is connected with a conical column 15, the conical column 15 corresponds to a jack 16, the connection frame 5 and the bottom frame 6 are slowly pushed from front to back when being connected, the grouting pipe 4 is in a conical design, the small end of the grouting pipe 4 is in a sealing design, a plurality of grout outlet holes 17 are formed in the grouting pipe 4, a plurality of sealing rings 18 are installed on the grouting pipe 4, a jacking sheet 19 is installed at the bottom of the grouting pipe 4, a fixing column 20 is welded on the grouting pipe 4, the jacking sheet 19 is connected with the connection frame 5 and the bottom frame 6, the jacking sheet 19 is composed of two metal sheets which are connected through an arc-shaped piece, a spring 25 is installed between the two metal sheets, the fixing shaft 23 is located at the arc-shaped piece, a sliding block 24 is welded at the bottom of the fixing shaft 23, the sliding block 24 is connected with the sliding groove 9, the sheetmetal of top passes through the screw and is connected with slip casting pipe 4, sealing ring 18 adopts the spring leaf to make, the both sides of sealing ring 18 are equipped with the tightening piece 21 of screw installation, tightening piece 21 passes through lead screw 22 and connects, the carriage 5, a plurality of removal post 26 are installed at the top of underframe 6, remove post 26 and get into the carriage 5, underframe 6, fixed column 20 and removal post 26 phase-match, a plurality of removal post 26 upwards remove and form a cavity, thereby fixed column 20 is installed and is spacing to slip casting pipe 4 in the cavity, remove post 26 and sleeve 27 sliding connection, carriage 5, the top of underframe 6 is the fretwork design, sleeve 27 is installed at carriage 5, in underframe 6, be located carriage 5, the welding has fixture block 28 on the inside removal post 26 of underframe 6.
The working principle of the invention is as follows: firstly, the height of a fixing frame 3 is changed according to the depth of a foundation pit 2, when the height of the fixing frame 3 needs to be increased, another connecting frame 5 can be added above the connecting frame 5, the adjacent connecting frames 5 are inserted from front to back, an inserting block 8 on the connecting frame 5 below is connected with a through groove 7 of the connecting frame 5 above, meanwhile, a fixing plate 11 which is designed in an inclined mode increases friction force, an inserting hole 16 on the fixing plate 11 is connected with a conical column 15 on a clamping device 10 to fix the connecting frame, a bottom frame 6 is the same as the connecting mode of the connecting frame 5, the fixing frame 3 which is installed is fixed at one side, close to a building body 1, of the bottom of the foundation pit 2 through an anchor rod, a drilling machine is used for drilling, a grouting pipe 4 is inserted into a drilled hole, the position of a sealing ring 18 is changed through a lead screw 22, an unnecessary grout outlet 17 is blocked through the sealing ring 18, a jacking piece 19 at the bottom of the grouting pipe 4 is connected with the connecting frame 5 and a sliding groove 9 on the bottom frame 6, so that the grouting pipe 4 changes the position of the grouting pipe 4 according to the grouting pipe need, water injection, and the weight of soil below the building body 1 is increased.
The foregoing is a preferred embodiment of the present invention, and it will be apparent to those skilled in the art that variations, modifications, substitutions and alterations can be made in the embodiment without departing from the principles and spirit of the invention.
Claims (5)
1. A protection device for an open cut tunnel adjacent building comprises a building body (1), a foundation pit (2), a fixed support (3) and grouting pipes (4), and is characterized in that the building body (1) is located on one side of the foundation pit (2), the distance between the building body (1) and the foundation pit (2) is a safe distance, the foundation pit (2) is excavated from top to bottom, the fixed support (3) is installed on one side, close to the building body (1), in the foundation pit (2), the fixed support (3) comprises a connecting frame (5) and a bottom frame (6), the connecting frame (5) and the bottom frame (6) are both in front and back open design, the connecting frame (5) is provided with a plurality of connecting frames (5), the adjacent connecting frames (5) are connected with each other, the connecting frame (5) at the lowest end is connected with the bottom frame (6), the bottom frame (6) is fixed at the bottom of the foundation pit (2) through anchor rods, the grouting pipes (4) are installed in the connecting frame (5) and the bottom frame (6), and the grouting pipes (4) can move in the connecting frame (5) and the bottom frame (6);
the grouting pipe (4) is in a conical design, the small end of the grouting pipe (4) is in a sealing design, a plurality of grout outlet holes (17) are formed in the grouting pipe (4), a plurality of sealing rings (18) are installed on the grouting pipe (4), a jacking piece (19) is installed at the bottom of the grouting pipe (4), a fixing column (20) is welded on the grouting pipe (4), and the jacking piece (19) is connected with the connecting frame (5) and the bottom frame (6);
the utility model discloses a concrete grouting device, including connection frame (5), underframe (6), a plurality of removal post (26) are installed at the top of connection frame (5), underframe (6), remove post (26) and get into connection frame (5), underframe (6), fixed column (20) and removal post (26) phase-match, a plurality of removal post (26) rebound form a cavity, thereby fixed column (20) are installed and are carried on spacingly to slip casting pipe (4) in the cavity, remove post (26) and sleeve (27) sliding connection, connection frame (5), the top of underframe (6) is the fretwork design, sleeve (27) are installed in connection frame (5), underframe (6), be located connection frame (5), the welding has fixture block (28) on inside removal post (26) of underframe (6).
2. The open trench tunnel adjacent building protection device of claim 1, wherein a sliding groove (9) is formed in the top of the connection frame (5), through grooves (7) are formed in two side walls of the connection frame (5), integrally formed plug blocks (8) are arranged on the top of the connection frame (5) and the bottom frame (6), the plug blocks (8) are connected with the through grooves (7), an integrally formed fixing plate (11) is arranged on one side of the connection frame (5) and the bottom frame (6), a clamping device (10) is installed on the connection frame (5) above the fixing plate (11), the clamping device (10) is connected with the fixing plate (11) to fix the connection frame (5) and the bottom frame (6), the sliding grooves (9) are formed in the top and the inner bottom of the bottom frame (6), a water injection pipe (12) in threaded connection is arranged on one side of the bottom frame (6), the inner bottom of the bottom frame (6) is in a hollow design, and a drain hole is installed on one side of the bottom frame.
3. The open-cut tunnel adjacent building protection device of claim 2, wherein the height of the fixed plate (11) increases from front to back in sequence, the jack (16) is arranged at the rightmost end of the fixed plate (11), the position clamping device (10) comprises a limiting plate (13), a spring sleeve (14) and a conical column (15), the limiting plate (13) is welded at one side of the connecting frame (5), the spring sleeve (14) installed through screws is arranged at the bottom of the limiting plate (13), the tail end of the spring sleeve (14) is connected with the conical column (15), the conical column (15) corresponds to the jack (16), and the connecting frame (5) is slowly pushed into the bottom frame (6) from front to back when being connected.
4. The open trench tunnel adjacent building protection device of claim 1, wherein the jacking sheet (19) is composed of two metal sheets, the two metal sheets are connected through an arc-shaped member, the spring (25) is installed between the two metal sheets, the fixed shaft (23) is located at the arc-shaped member, the sliding block (24) is welded at the bottom of the fixed shaft (23), the sliding block (24) is connected with the sliding chute (9), and the upper metal sheet is connected with the grouting pipe (4) through a screw.
5. Open trench tunnel adjacent building protection device according to claim 1, characterized in that, the sealing ring (18) is made of spring sheet, and the two sides of the sealing ring (18) are provided with tightening pieces (21) installed by screws, and the tightening pieces (21) are connected through a screw rod (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110812924.1A CN113445491B (en) | 2021-07-19 | 2021-07-19 | Open cut tunnel adjacent building protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110812924.1A CN113445491B (en) | 2021-07-19 | 2021-07-19 | Open cut tunnel adjacent building protection device |
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| Publication Number | Publication Date |
|---|---|
| CN113445491A CN113445491A (en) | 2021-09-28 |
| CN113445491B true CN113445491B (en) | 2022-12-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110812924.1A Active CN113445491B (en) | 2021-07-19 | 2021-07-19 | Open cut tunnel adjacent building protection device |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20150018053A (en) * | 2013-08-09 | 2015-02-23 | 조남전 | Construction Method of Underground Concrete Structure on Segement Construction Base |
| CN206800410U (en) * | 2017-05-03 | 2017-12-26 | 中交一公局第三工程有限公司 | Supporting construction and foundation pit construction support system |
| CN210341946U (en) * | 2019-07-05 | 2020-04-17 | 东莞市建安集团有限公司 | Side slope structure with reinforcing system |
| CN111305232A (en) * | 2020-03-31 | 2020-06-19 | 南京地下空间高技术产业研究院有限公司 | A foundation ditch protection strutting arrangement for construction of old city district |
-
2021
- 2021-07-19 CN CN202110812924.1A patent/CN113445491B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20150018053A (en) * | 2013-08-09 | 2015-02-23 | 조남전 | Construction Method of Underground Concrete Structure on Segement Construction Base |
| CN206800410U (en) * | 2017-05-03 | 2017-12-26 | 中交一公局第三工程有限公司 | Supporting construction and foundation pit construction support system |
| CN210341946U (en) * | 2019-07-05 | 2020-04-17 | 东莞市建安集团有限公司 | Side slope structure with reinforcing system |
| CN111305232A (en) * | 2020-03-31 | 2020-06-19 | 南京地下空间高技术产业研究院有限公司 | A foundation ditch protection strutting arrangement for construction of old city district |
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| Publication number | Publication date |
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| CN113445491A (en) | 2021-09-28 |
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