CN212803222U - Steel lining plate and anchor spraying combined type vertical shaft structure - Google Patents
Steel lining plate and anchor spraying combined type vertical shaft structure Download PDFInfo
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- CN212803222U CN212803222U CN202021752429.3U CN202021752429U CN212803222U CN 212803222 U CN212803222 U CN 212803222U CN 202021752429 U CN202021752429 U CN 202021752429U CN 212803222 U CN212803222 U CN 212803222U
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Abstract
The utility model provides a liner plate and anchor spout convolution shaft structure, including the anchor spout wall well body of lower part and the liner plate well body on upper portion, the anchor spout wall well body includes wall lateral wall and reinforced concrete's back cover plate, the wall lateral wall is including the a set of steel grating horizontal stand that from top to bottom interval layering set up, including top layer grid stand and all the other layering grid stands, the wall lateral wall still includes the reinforcing bar net piece of vertical fixed connection in steel grating horizontal stand both sides, the reinforcing bar net piece sets up according to the setting distance layering of adjacent steel grating horizontal stand, the wall lateral wall still includes the anchor that sprays and cladding this layer of reinforcing bar net piece and steel grating horizontal stand according to the distance layering of adjacent steel grating horizontal stand spouts the concrete. The utility model discloses a combination that the novel welt of upper strata was strutted and was strutted with the anchor shotcrete combination of lower floor combines two kinds of independent supporting mode together, and the biggest advantage that has utilized two kinds of technologies has evaded the drawback of two kinds of technologies, practices thrift the cost.
Description
Technical Field
The utility model relates to a push pipe shaft, especially a steel welt and anchor spout convolution shaft.
Background
In trenchless pipe-jacking construction, two construction modes are generally adopted for a working vertical shaft, a receiving vertical shaft and a temporary danger-removing vertical shaft in the emergency rescue process:
firstly, the single concrete anchor shotcrete is made of concrete, the single concrete anchor shotcrete is small in general size, the single concrete anchor shotcrete cannot be used for a large foundation pit, meanwhile, the requirements on underground pipelines and structures during construction are high, the problems that the underground pipelines and the structures cannot be recycled, pipelines cannot exist in a well chamber range and the like exist.
And secondly, the steel lining plates are adopted for manufacturing, the single steel lining plate anchor spraying cannot be used as the back of the jacking pipe, and the back of the jacking pipe needs to be constructed independently.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a steel welt spouts convolution shaft structure with anchor, will solve current single concrete deep well construction and deposit the technical problem that the size is less, can not be used for large-scale foundation ditch, high, the unable reuse of requirement and well room within range can not have the pipeline to underground pipeline and structures, still need solve single steel welt anchor and spout unable conduct pipe-jacking back, need construct the technical problem of pipe-jacking back alone.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a steel lining plate and anchor spraying combined vertical shaft structure comprises an anchor spraying wall well body at the lower part and a steel lining plate well body at the upper part,
the steel lining well body comprises at least three layers of steel lining strips which are bolted up and down, the top of each steel lining strip exceeds the ground, a circle of water retaining wall is arranged at the internal corner between the part of each steel lining strip exceeding the ground and the ground,
the anchor blowout wall well body comprises a wall side wall and a reinforced concrete sealing bottom plate, the bottom of the wall side wall is arranged on the sealing bottom plate, the sealing bottom plate and the wall side wall are identical in shape, the outer diameter edges of the sealing bottom plate and the wall side wall are flush, the top surface of the wall side wall is fixedly connected with the bottom surface of the steel lining plate well body,
the wall side wall comprises a group of steel grating horizontal frames which are arranged at intervals and layers from top to bottom, and comprises a top layer grating frame and other layered grating frames, the wall side wall also comprises reinforcing steel bar net sheets which are vertically and fixedly connected to the two sides of the steel grating horizontal frames, the reinforcing steel bar net sheets are arranged at layers according to the arrangement distance of the adjacent steel grating horizontal frames, the wall side wall also comprises anchor spray concrete which is sprayed at layers according to the distance of the adjacent steel grating horizontal frames and coats the reinforcing steel bar net sheets and the steel grating horizontal frames,
the upper side surface of the wall side wall is flush with the upper side surface of the top layer grid frame, and the top layer grid frame is bolted with the steel lining plate strip at the bottommost layer.
The steel lining plate well body and the anchor blowout wall well body are identical in shape, the outer diameter edges of the steel lining plate well body and the anchor blowout wall well body are flush, and the top surface of the anchor blowout wall well body is located 50cm above the underground water plane.
The setting distance between the adjacent steel grating horizontal racks is not more than 500 mm.
The side wall of the steel lining plate well body is provided with at least one layer of grouting holes for connecting the vertical shaft structure and the foundation pit wall in a grouting way, and the grouting hole at the lowest layer is arranged on the third steel lining plate strip from bottom to top.
The grouting holes are formed in the middle of each layer of steel lining plate strip, and a group of grouting holes are arranged at intervals along the length direction of the steel lining plate strip.
Each steel lining plate strip of the steel lining plate well body comprises a group of spliced steel lining plate units, the left and right adjacent steel lining plate units are bolted through bolts, and the upper and lower adjacent steel lining plate units are arranged in a staggered joint mode.
The thickness of the wall side wall is 200mm, and the anchor shotcrete is marked with a mark number of more than C20.
The thickness of the back cover plate is at least 200 mm.
Compared with the prior art the utility model has the following characteristics and beneficial effect:
the utility model discloses a combination that the novel welt of upper strata was strutted and was strutted with the anchor shotcrete combination of lower floor, combine two kinds of independent supporting mode together, the biggest advantage that has utilized two kinds of technologies, the drawback of two kinds of technologies has been avoidd, the cost is saved, upper portion steel lining board well body installation is simple quick, it is detachable after the construction is accomplished, retrieve used repeatedly again, can effectual reduction construction period, welt cross-section weight has the bolt tie point gently, the workman is light to be carried and the equipment, the welt can be built, so can be preserved in narrow and small place, reduce environmental pollution, reduce the occupation of well body totality to underground space, lower part anchor shotcrete wall well body can the layering construction simultaneously. When the upper steel lining plate well body is constructed, the bolt connection can be completed only by the inner side, and an external working space is not needed. Therefore, the foundation pit can be assembled at a place close to the ground, the small foundation pit can be conveniently constructed, large-scale machinery is not needed, the noise is low during assembly and construction, the influence on the periphery is small, and the influence of construction on the periphery can be reduced as far as possible.
Meanwhile, the lower concrete well body can be directly used as the back of the jacking pipe. Compared with an all-concrete open caisson, the open caisson has the advantages that materials are saved, the occupation of underground space is reduced, the cost is reduced, and compared with an all-steel lining plate well body, the open caisson does not need to be constructed independently to push the back of the pipe.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic plan view of the present invention.
Fig. 2 is a sectional view taken along line a-a of fig. 1.
Fig. 3 is a sectional view taken along line B-B of fig. 1.
Reference numerals: 1-wall side wall, 2-bottom sealing plate, 3-steel grating horizontal frame, 31-top layer grating frame, 32-layered grating frame, 33-reinforcing steel bar net piece, 34-anchor spraying concrete, 4-steel lining plate well body, 41-steel lining plate unit, 5-ground, 6-water retaining wall, 7-grouting hole, 8-bolt and 9-underground horizontal plane.
Detailed Description
Referring to fig. 1-3, a combined steel liner and anchor-shotcrete shaft structure includes a lower anchor-shotcrete wall shaft and an upper steel liner shaft 4.
The steel lining well body 4 comprises at least three layers of steel lining strips which are bolted up and down, the top of each steel lining strip exceeds the ground 5, and a circle of water retaining wall 6 is arranged at the internal corner between the part of each steel lining strip exceeding the ground 5 and the ground 5.
The anchor blowout wall well body comprises a wall side wall 1 and a reinforced concrete sealing bottom plate 2, the bottom of the wall side wall 1 is placed on the sealing bottom plate 2, the sealing bottom plate 2 and the wall side wall 1 are identical in shape, the outer diameter edges of the sealing bottom plate and the wall side wall 1 are flush, and the top surface of the wall side wall 1 is fixedly connected with the bottom surface of a steel lining plate well body 4.
Wall lateral wall 1 is including a set of steel grating horizontal stand 3 that from top to bottom interval layering set up, including one top layer grid frame 31 and all the other layering grid frame 32, wall lateral wall 1 still includes the reinforcing bar net piece 33 of vertical fixed connection in steel grating horizontal stand both sides, reinforcing bar net piece 33 sets up according to the setting distance layering of adjacent steel grating horizontal stand, and wall lateral wall 1 still includes that the anchor according to the distance layering of adjacent steel grating horizontal stand sprays and this layer of reinforcing bar net piece 33 of cladding and steel grating horizontal stand spouts concrete 34.
The upper side surface of the wall side wall 1 is flush with the upper side surface of the top grid frame 31, and the top grid frame 31 is bolted with the steel lining plate strip at the bottommost layer.
The steel lining plate well body 4 and the anchor blowout wall well body are identical in shape, the outer diameter edges of the steel lining plate well body and the anchor blowout wall well body are flush, and the top surface of the anchor blowout wall well body is located 50cm above the underground water plane 9.
The setting distance between the adjacent steel grating horizontal racks 3 is not more than 500 mm.
And at least one layer of grouting holes 7 for connecting the shaft structure and the foundation pit wall in a grouting manner are formed in the side wall of the steel lining plate well body 4, and the grouting hole 7 at the lowest layer is formed in the third steel lining plate strip from bottom to top.
The grouting holes 7 are arranged in the middle of each layer of steel lining plate strip and are arranged in a group at intervals along the length direction of the steel lining plate strip.
Each steel lining plate strip of the steel lining well body 4 comprises a group of spliced steel lining plate units 41, the left and right adjacent steel lining plate units 41 are bolted through bolts 8, and the upper and lower adjacent steel lining plate units 41 are arranged in a staggered manner.
The thickness of the wall side wall 1 is 200mm, and the anchor shotcrete is marked with a mark of C20 or more.
The thickness of the back cover plate 2 is at least 200 mm.
The utility model discloses a work progress as follows:
firstly, measuring and paying off;
step two, excavating soil to form a foundation pit, excavating 150mm outside the steel lining plate well body, and then assembling a first steel lining plate strip on the ground;
step three, hoisting a first steel lining plate strip when the pit of the foundation pit is 300mm deep, manufacturing a water retaining wall around the first steel lining plate strip, and reinforcing the periphery of the lining plate;
step four, continuously excavating to the depth of 1.3 m, and mounting subsequent steel lining plate strips until the specified depth forms a steel lining plate well body; the specified depth is 50cm above the natural water surface in the foundation pit, and a top layer grid frame is arranged below the steel lining plate strips;
installing a first layer of layered grid frames and reinforcing mesh sheets, and spraying anchor spraying concrete;
step six, repeating the step five, wherein the distance of each roof truss is not more than 50cm, the strength of the anchor shotcrete is more than 80%, and then continuing excavation;
and step six, excavating until the depth is specified, and then pouring a sealing bottom plate with the thickness of 20cm in the pit.
Claims (8)
1. A steel lining plate and anchor spraying combined vertical shaft structure is characterized by comprising an anchor spraying wall well body at the lower part and a steel lining plate well body (4) at the upper part,
the steel lining well body (4) comprises at least three layers of steel lining strips which are bolted up and down, the top of each steel lining strip exceeds the ground (5), a circle of water retaining wall (6) is arranged at the internal corner between the part of each steel lining strip exceeding the ground (5) and the ground (5),
the anchor blowout wall well body comprises a wall side wall (1) and a reinforced concrete sealing bottom plate (2), the bottom of the wall side wall (1) is placed on the sealing bottom plate (2), the sealing bottom plate (2) and the wall side wall (1) are identical in shape, the outer diameter edges of the wall side wall and the sealing bottom plate are flush, the top surface of the wall side wall (1) is fixedly connected with the bottom surface of a steel lining plate well body (4),
the wall side wall (1) comprises a group of steel grating horizontal frames (3) which are arranged at intervals and layers from top to bottom, and comprises a top layer grating frame (31) and other layered grating frames (32), the wall side wall (1) further comprises reinforcing steel bar net pieces (33) which are vertically and fixedly connected to two sides of the steel grating horizontal frames, the reinforcing steel bar net pieces (33) are arranged in layers according to the arrangement distance of the adjacent steel grating horizontal frames, the wall side wall (1) further comprises anchor spray concrete (34) which is sprayed in layers according to the distance of the adjacent steel grating horizontal frames and coats the reinforcing steel bar net pieces (33) and the steel grating horizontal frames,
the upper side surface of the wall side wall (1) is flush with the upper side surface of the top layer grid frame (31), and the top layer grid frame (31) is bolted with the steel lining plate strip at the bottommost layer.
2. The steel liner plate and anchor spraying combined type shaft structure according to claim 1, wherein: the steel lining plate well body (4) and the anchor blowout wall well body are identical in shape, the outer diameter edges of the steel lining plate well body and the anchor blowout wall well body are flush, and the top surface of the anchor blowout wall well body is located 50cm above the underground water plane (9).
3. The steel liner plate and anchor spraying combined type shaft structure according to claim 1, wherein: the setting distance between the adjacent steel grating horizontal racks (3) is not more than 500 mm.
4. The steel liner plate and anchor spraying combined type shaft structure according to claim 1, wherein: and at least one layer of grouting holes (7) for connecting the vertical shaft structure and the foundation pit wall in a grouting manner are formed in the side wall of the steel lining plate well body (4), and the grouting hole (7) at the lowest layer is formed in the third steel lining plate strip from bottom to top.
5. The steel liner plate and anchor spraying combined type shaft structure according to claim 4, wherein: the grouting holes (7) are arranged in the middle of each layer of steel lining plate strip and are arranged in a group at intervals along the length direction of the steel lining plate strip.
6. The steel liner plate and anchor spraying combined type shaft structure according to claim 1, wherein: each steel lining plate strip of the steel lining plate well body (4) comprises a group of spliced steel lining plate units (41), the two steel lining plate units (41) which are adjacent from left to right are bolted through bolts (8), and the two steel lining plate units (41) which are adjacent from top to bottom are arranged in a staggered manner.
7. The steel liner plate and anchor spraying combined type shaft structure according to claim 1, wherein: the thickness of the wall side wall (1) is 200mm, and the anchor spraying concrete is more than C20.
8. The steel liner plate and anchor spraying combined type shaft structure according to claim 1, wherein: the thickness of the bottom sealing plate (2) is at least 200 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021752429.3U CN212803222U (en) | 2020-08-20 | 2020-08-20 | Steel lining plate and anchor spraying combined type vertical shaft structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021752429.3U CN212803222U (en) | 2020-08-20 | 2020-08-20 | Steel lining plate and anchor spraying combined type vertical shaft structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212803222U true CN212803222U (en) | 2021-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021752429.3U Active CN212803222U (en) | 2020-08-20 | 2020-08-20 | Steel lining plate and anchor spraying combined type vertical shaft structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212803222U (en) |
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2020
- 2020-08-20 CN CN202021752429.3U patent/CN212803222U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Nie Xiaoshuang Inventor after: Nie Shuming Inventor after: Ma Junying Inventor before: Nie Xiaoshuang Inventor before: Nie Shuming Inventor before: Ma Yingjun |
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| CB03 | Change of inventor or designer information |