CN219011303U - Large-scale rain sewage inspection shaft of circular UHPC of assembled - Google Patents

Large-scale rain sewage inspection shaft of circular UHPC of assembled Download PDF

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Publication number
CN219011303U
CN219011303U CN202221720281.4U CN202221720281U CN219011303U CN 219011303 U CN219011303 U CN 219011303U CN 202221720281 U CN202221720281 U CN 202221720281U CN 219011303 U CN219011303 U CN 219011303U
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uhpc
well
tongue
well body
well bore
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王蕾
张书峰
范学明
张雨飞
钟诚
马玉全
田月强
许佳波
黄智华
单良达
汤毅
林盛用
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Guangzhou Dingxing Civil Engineering Technology Co ltd
Zhonglu Chuangneng Guangzhou Equipment Materials Co ltd
Guangzhou Transportation Design And Research Institute Co ltd
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Guangzhou Dingxing Civil Engineering Technology Co ltd
Zhonglu Chuangneng Guangzhou Equipment Materials Co ltd
Guangzhou Transportation Design And Research Institute Co ltd
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    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/60Planning or developing urban green infrastructure

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Abstract

The utility model discloses an assembled round UHPC large-scale rain sewage inspection well, which comprises an UHPC bottom plate, a first UHPC well body, a second UHPC well body, a third UHPC well body and an UHPC well seat which are arranged from bottom to top, wherein a well cover is arranged on the UHPC well seat, the first UHPC well body, the second UHPC well body, the UHPC well body and the UHPC well seat are sequentially connected through a tongue-and-groove structure, a longitudinal joint surface of the tongue-and-groove structure is obliquely arranged, a transverse joint surface of the tongue-and-groove structure is a horizontal plane, the tongue-and-groove at the upper ends of the first UHPC well body, the second UHPC well body and the third UHPC well body are all bosses, the bosses are provided with first outer edges protruding out of the outer wall of the well body, the tongue-and-groove at the lower ends of the second UHPC well body and the third UHPC well body are all grooves, and the grooves are provided with second outer edges protruding out of the outer wall of the well body. The utility model can effectively solve the problem of uneven pavement caused by sinking of the traditional inspection well.

Description

Large-scale rain sewage inspection shaft of circular UHPC of assembled
Technical Field
The utility model relates to the technical field of assembly type buildings, in particular to an assembly type circular UHPC large-scale rain sewage inspection well.
Background
The urban construction scale of the current society is larger and larger, urban construction facilities are more and more perfect, the requirements of people on the urban construction facilities are higher and higher, and the position of the municipal construction facilities in urban construction is more and more important. Urban drainage pipe networks are part of municipal engineering and are arteries of cities. In order to ensure the normal operation of cities and the normal life of residents, drainage pipelines and related facilities need to be checked and maintained regularly. The drainage inspection well is arranged for the convenience and safety of pipeline maintenance, so that the drainage inspection well is required to be arranged at a certain distance according to the specification. The drainage inspection shaft is generally arranged on the urban road, and is synchronous with road construction during construction. Therefore, the occurrence of the defect of the inspection well directly affects the driving safety of the road and the road subgrade and pavement. With the increasing importance of urban traffic in cities, the problems that inspection well diseases affect driving safety and resident life are widely focused by society, the inspection well diseases are prevented and treated from the source, and the existing drainage inspection well diseases are cured, so that the inspection well diseases become an important subject in road construction. The characteristics of the various types of inspection wells are shown in Table 1.
Figure SMS_1
Figure SMS_2
Drainage pipes are mostly arranged under the roadway due to factors such as the width of the road width and other pipeline effects. The failure rate and the overhauling and maintenance frequency of the drainage pipeline are far higher than those of other types of pipelines. The inspection well and the periphery of the inspection well on the roadway are weak parts of the road, the inspection well is extremely easy to damage under the impact of vehicle load, and various diseases such as instability, damage, sinking, annular crack of a well seat, sinking and the like often occur in the inspection well. For large inspection wells, the main diseases and adverse effects on society are as follows:
(1) The construction period of pouring is long, the cost is high, the energy consumption is high, and the environment protection condition is worry;
(2) The well cover protrudes out of the road surface to be tilted or the sinking amount is large to cause sinking, and the drainage of rainwater and sewage is not smooth;
(3) The self weight of the large pipe well is large, and the uneven sedimentation phenomenon of the pipe well is obvious;
(4) Uneven sedimentation of the pipe well can cause water leakage at the pipe joint and aggravate sand and stone loss;
(5) The well cover frame is loose, which affects the beautiful appearance;
(6) The well lid is not tightly matched with the well frame, so that the well lid and the well frame are impacted when a vehicle runs, and noise is generated;
(7) Social influence and high construction cost caused by construction of breaking soil in busy road section
(8) The use function and the appearance image of the road are affected;
(9) The flatness of the road is affected, and the comfort and safety of road traffic are reduced;
(10) The phenomenon of vehicle jump and shaking is easy to occur due to the settlement of the pipe well, and even traffic accidents can be caused;
(11) The service life of the road is shortened;
(12) The quality evaluation of the appearance quality of the road and the qualification rate of the actual measured real quantity are affected, so that the comprehensive qualification rate is reduced during engineering evaluation, and the quality grade is not high;
(13) The workload of the later maintenance of the pipeline is increased and aggravated, and a great amount of construction funds are lost and wasted.
The traditional building industry can produce a large amount of building dust, construction noise, building rubbish and other environmental pollutants. Along with the development of society, the assembled building in the industrialized mode has the unique advantages from the aspects of improving quality, reasonably accelerating construction period, protecting environment, saving energy and the like. However, the assembled type rain sewage inspection well which is widely applied at present is generally only suitable for small and medium-sized pipe wells smaller than 1.2m, and the embedded depth is not more than 6m, and the assembled type rain sewage inspection well is structurally shown in fig. 1 and comprises a bottom shaft a, a pipe connecting shaft b, an adjusting shaft c and a well seat d, wherein adjacent shafts or the shafts and the well seat are connected through a stepped tongue-and-groove structure. For example, large diameter tubular wells greater than 1.2m, conventional in situ casting operations still need to be performed with concrete materials.
Disclosure of Invention
The utility model aims to provide an assembled round UHPC large-scale rain sewage inspection well, which can effectively solve the problem of uneven pavement caused by sinking of the traditional inspection well, and has the advantages of low carbon, environmental protection, convenient construction and high cost performance.
The utility model provides a large-scale rain sewage inspection shaft of circular UHPC of assembled, includes UHPC bottom plate, first UHPC well, second UHPC well, third UHPC well and UHPC well seat that set up from bottom to top, set up the well lid on the UHPC well seat, first UHPC well second UHPC well, third UHPC well with the rabbet structure that loops through accurate bonding butt joint between the UHPC well seat connects, the slope of the vertical joint face of rabbet structure sets up, the horizontal joint face of rabbet structure is the horizontal plane, wherein, first UHPC well upper end the rabbet of second UHPC well and third UHPC well upper end is the boss, the boss has the first outer fringe of salient well outer wall, the lower section slope of first outer fringe sets up, the rabbet of second UHPC well lower extreme and third UHPC well lower extreme all is the notch, the notch has the second outer fringe of salient outer wall, the UHPC well upper end is set up with the UHPC pipeline, the UHPC is in the UHPC is connected to the UHPC is in advance to the UHPC well upper end.
The utility model surrounds the engineering pain points of the sinking of the inspection well and the subsequent problems, and the main reasons for analyzing the sinking of the inspection well are as follows: the settlement of the geology soft foundation causes the whole well body to sink, and a mortar layer between the cover plate and the well body is loosened or broken. The bottom plate, the well body and the well seat are manufactured by adopting UHPC materials, the UHPC is ultra-high performance concrete, and is a novel cement-based structural engineering material designed based on the maximum compactness theory, and the UHPC is composed of a plurality of components such as silica fume, cement, quartz sand, steel fiber, high-efficiency water reducer and the like. Adopts fine aggregates with different grain diameters to form a tightly packed ultra-high-strength, ultra-high-toughness and high-durability ultra-high-performance cement-based composite material. The compressive strength can reach more than 130MPa, the tensile strength can reach more than 7MPa, the durability is 80 times of that of common concrete, and the abrasion index is 30 times of that of common concrete. The utility model fully utilizes the advantages of high strength, good durability, light weight, convenient construction and the like of the UHPC material, adopts assembly type construction, assembles a large-scale rain sewage inspection well through the bottom plate, a plurality of well bodies and well seats, and fills the blank of the large-scale assembly type rain sewage inspection well. And adopts a tongue-and-groove structure with a slope to realize the following aims: 1. the first outer edge and the second outer edge of the tongue-and-groove structure are beneficial to assembly connection, so that the anti-sliding capability of the well body in contact with the soil body is enhanced, and the friction force of connection is enhanced. Solves the sinking problem of the rain sewage inspection well from the root.
The utility model also has the following preferred designs:
according to the UHPC bottom plate, the first UHPC well body, the second UHPC well body, the third UHPC well body and the UHPC well seat are all formed by prefabricating and pouring UHPC materials, and the axial compressive strength of the UHPC materials is more than or equal to 130MPa, and the axial tensile strength of the UHPC materials is more than or equal to 7MPa.
The well body of the inspection well is generally circular, the outer diameter of the well body is more than 3 m, the wall thickness of the well body is less than or equal to 100mm and less than or equal to 150mm, the circular well body design is commonly used in the inspection well design with small and medium diameters, the rectangular well body design is often adopted for a large-sized inspection well, the rectangular well body design is matched with the cast-in-place concrete construction process, and the template and the casting construction are convenient. The utility model adopts a round well design, the stress is more reasonable, and the utility model saves more materials than the traditional rectangular inspection well.
The slope of the longitudinal joint surface of the tongue-and-groove structure is 4:1 to 5:1.
the slope of the lower section of the first outer edge of the boss is 2:1.
the slope of the upper section of the second outer edge of the notch is 2:1.
a water stop rubber ring is arranged between an upper rabbet and a lower rabbet of the rabbet structure for anti-seepage sealing.
The utility model has the following beneficial effects:
1. the utility model adopts UHPC material to manufacture the bottom plate, the well body and the well seat, fully utilizes the advantages of high strength, good durability, light weight, convenient construction and the like of the UHPC material, adopts assembly type construction, assembles the bottom plate, a plurality of well bodies and the well seat into a large-scale rain sewage inspection well, fills the blank of the large-scale assembly type rain sewage inspection well, can design a light inspection well component, is convenient for field assembly construction, has low field transportation and hoisting construction machinery requirements, has high construction speed, is not influenced by weather in the construction process, and can perform all-weather construction. The utility model adopts a tongue-and-groove structure with a slope, and realizes the following aims: 1. the first outer edge and the second outer edge of the tongue-and-groove structure are beneficial to assembly connection, so that the anti-sliding capability of the well body in contact with the soil body is enhanced, and the friction force of connection is enhanced. The pavement bulge or depression caused by sedimentation and groundwater of the common concrete inspection well is radically and effectively avoided.
2. The UHPC material is used as a main material of the well body, the ultra-high permeability and ultra-high wear resistance of the UHPC material are very beneficial to the cracking prevention and structural durability of the inspection well, the service life of the structure of the large inspection well is greatly prolonged, the UHPC material has strong corrosion resistance, the corrosion resistance of common chemical corrosives of a drainage pipeline can be effectively resisted, the surface of the UHPC material is smoother and denser than that of common concrete, sundries are less prone to be stuck and accumulated and blocked compared with the common concrete inspection well, and the UHPC pipe well has high strength and can be deeply buried in a river channel, an urban underground pipe gallery and the like.
3. The utility model adopts a round well design, the stress is more reasonable, and the utility model saves more materials than the traditional rectangular inspection well.
4. The utility model can adopt the non-reinforcement structural design, fully utilizes the characteristic of high tensile property of the UHPC base material, saves the consumption of steel materials and simplifies the construction process.
Drawings
FIG. 1 is an elevation view of a prior art fabricated manhole;
FIG. 2 is a top plan view of the manhole of the present utility model;
FIG. 3 is a cross-sectional view I-I of the manhole of FIG. 2;
FIG. 4 is a cross-sectional view II-II of the manhole of FIG. 2;
fig. 5 is an enlarged view of a portion a of fig. 3 and 4;
fig. 6 is an enlarged view of a portion B of fig. 3 and 4;
FIG. 7 is a schematic illustration of a first inspection shaft construction step of the present utility model;
FIG. 8 is a schematic diagram of a second inspection shaft construction step of the present utility model;
FIG. 9 is a schematic diagram of a third inspection shaft construction step of the present utility model;
FIG. 10 is a schematic diagram of a fourth inspection shaft construction step of the present utility model;
FIG. 11 is a schematic illustration of a manhole construction step five of the present utility model;
FIG. 12 is a schematic illustration of a manhole construction step six of the present utility model;
reference numerals illustrate:
the prior art comprises the following steps:
a-a bottom well bore, b-a connecting well bore, c-a regulating well bore, d-a well base;
the utility model is that
1-UHPC bottom plate, 2-first UHPC well, 3-second UHPC well, 4-third UHPC well, 5-UHPC well base, 6-well lid, 7-poured concrete, 8-splice joint, 9-ground and 10-water stop rubber ring; 11-a first outer edge; h-lower section; i-longitudinal joint surfaces; 12-a second outer edge; j-upper section; 13-steel sheet pile support, 14-cast concrete, 15-pipelines and 16-well backfill.
Detailed Description
The following detailed description of the present utility model is presented in conjunction with the drawings and examples to enable one of ordinary skill in the art to better understand and practice the present utility model.
As shown in fig. 2 to 6, the assembled round large-scale rain sewage inspection well comprises an UHPC bottom plate 1, a first UHPC well body 2, a second UHPC well body 3, a third UHPC well body 4 and a UHPC well seat 5 which are arranged from bottom to top, wherein a well cover 6 is arranged on the UHPC well seat 5, the well cover 6 is flush with the ground 9, the first UHPC well body 2, the second UHPC well body 3, the third UHPC well body 4 and the UHPC well seat 5 are sequentially connected through a tongue-and-groove structure which is accurately bonded and butted, a longitudinal joint surface i of the tongue-and-groove structure is obliquely arranged and can be a conical surface or an inclined surface, a transverse joint surface of the tongue-and-groove structure is a horizontal surface, wherein as shown in fig. 6, the upper end of the first UHPC well body 2, the upper end of the second UHPC well body 3 and the rabbet of the upper end of the third UHPC well body 4 are bosses, the bosses are provided with first outer edges 11 protruding out of the outer wall of the well body, the lower sections h of the first outer edges 11 are obliquely arranged, the rabbets of the lower ends of the second UHPC well body 3 and the lower end of the third UHPC well body 4 are notches, the notches are provided with second outer edges 12 protruding out of the outer wall of the well body, the upper sections j of the second outer edges 12 are obliquely arranged, the lower end of the first UHPC well body 2 is embedded in a groove of the UHPC bottom plate 1, and a hole connected with a pipeline 15 is reserved between the first UHPC well body 2 and the second UHPC well body 3.
As a preferred embodiment: the UHPC bottom plate 1, the first UHPC well body 2, the second UHPC well body 3, the third UHPC well body 4 and the UHPC well seat 5 are all formed by prefabricating and pouring UHPC materials, and the axial compressive strength of the UHPC materials is more than or equal to 130MPa, and the axial tensile strength of the UHPC materials is more than or equal to 7MPa.
The well body of the inspection well is in a circular shape, the outer diameter of the well body is more than 3 meters, the wall thickness of the well body is less than or equal to 100mm and less than or equal to 150mm, the circular well body is adopted, the stress is more reasonable, and materials are saved compared with the traditional rectangular inspection well.
Specifically, the slope of the longitudinal joint surface i of the tongue-and-groove structure is 4:1 to 5:1.
the slope of the lower section h of the first outer edge 11 of the boss is 2:1.
the slope of the upper section j of the second outer edge 12 of the notch is 2:1.
the construction steps of the present utility model are shown in figures 7 to 12,
the construction method comprises the following steps: erecting a steel sheet pile support 13 on site, excavating to a designed standard height, and casting a C20 plain concrete cushion layer with the thickness of 10cm at the bottom of the inspection well to form casting concrete 14 shown in FIG. 7;
and a construction step II: as shown in fig. 8, a prefabricated UHPC base plate 1 is placed on site, and then a first UHPC well bore 2 is assembled on the UHPC base plate 1;
and a construction step III: as shown in fig. 9, a second UHPC wellbore 3 is assembled;
and a construction step four: referring to fig. 10, a third UHPC well bore 4 and a UHPC well base 5 are assembled;
and step five, construction: referring to fig. 11, C20 concrete of 20cm thickness is poured into the bottom of the manhole to form poured concrete 7, and pipes 15 are spliced;
and step six, construction: referring to fig. 12, the inspection well is filled with the backfill soil 16, and the steel pipe pile is pulled out.
In this embodiment, referring to fig. 5 and 6, a water stop rubber ring 10 is provided at a splice joint 8 between an upper tongue-and-groove and a lower tongue-and-groove of the tongue-and-groove structure to perform permeation prevention sealing. The outer edge of the tongue-and-groove of the UHPC well seat 5 is consistent with the outer contour line of the tongue-and-groove at the upper end of the third UHPC well body 4. The reserved hole between the first UHPC well body 2 and the second UHPC well body 3 is 40mm larger than the diameter of the pipeline 15, and the hole between the pipeline 15 and the well body is 1: and 2, filling the scattered expansion cement mortar, and carrying out surface roughening treatment on a bisected interface before filling.
The above embodiments are only preferred embodiments of the present utility model, but not limiting, and any modifications and improvements based on the concept of the present utility model should fall within the scope of the present utility model, and the specific scope of the present utility model is defined by the claims.

Claims (7)

1. The utility model provides a large-scale rain sewage inspection shaft of circular UHPC of assembled, its characterized in that: including UHPC bottom plate, first UHPC well bore, second UHPC well bore, third UHPC well bore and the UHPC well seat that from bottom to top set up, set up the well lid on the UHPC well seat, first UHPC well bore second UHPC well bore, third UHPC well bore with the tongue-and-groove structure connection of butt joint loops through accurate bonding between the UHPC well seat, the vertical joint face slope of tongue-and-groove structure sets up, the horizontal joint face of tongue-and-groove structure is the horizontal plane, wherein, first UHPC well bore upper end second UHPC well bore upper end and the tongue-and-groove of third UHPC well bore upper end are the boss, the boss has the first outer fringe of salient well bore outer wall, the lower section slope of first outer fringe sets up, second UHPC well bore lower extreme and the tongue-and-groove of third UHPC well bore lower extreme all is the notch, the notch has the second outer fringe of salient well bore outer wall, the upper section sets up of second outer fringe, the UHPC well bore is inlayed to the UHPC is in the UHPC hole is kept to the second pipeline.
2. The fabricated round UHPC large-scale rain sewage manhole of claim 1, wherein: the UHPC bottom plate, the first UHPC well body, the second UHPC well body, the third UHPC well body and the UHPC well seat are all formed by prefabricating and pouring UHPC materials, and the axial compressive strength of the UHPC materials is more than or equal to 130MPa, and the axial tensile strength of the UHPC materials is more than or equal to 7MPa.
3. The fabricated round UHPC large-scale rain sewage manhole of claim 2, wherein: the well body of the inspection well is in a circular ring shape, the outer diameter of the well body is more than 3 meters, and the wall thickness of the well body is less than or equal to 100mm and less than or equal to 150mm.
4. A fabricated circular UHPC large-scale rain sewage manhole as claimed in claim 3, wherein: the slope of the longitudinal joint surface of the tongue-and-groove structure is 4:1 to 5:1.
5. the fabricated round UHPC large-scale rain sewage manhole of claim 4, wherein: the slope of the lower section of the first outer edge of the boss is 2:1.
6. the fabricated round UHPC large-scale rain sewage manhole of claim 5, wherein: the slope of the upper section of the second outer edge of the notch is 2:1.
7. the fabricated circular UHPC large-scale rain sewage manhole according to any one of claims 1 to 6, wherein: a water stop rubber ring is arranged between the upper rabbet and the lower rabbet of the rabbet structure for anti-seepage sealing.
CN202221720281.4U 2022-07-05 2022-07-05 Large-scale rain sewage inspection shaft of circular UHPC of assembled Active CN219011303U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117428918A (en) * 2023-10-24 2024-01-23 江苏瀚能电气有限公司 Prefabricated UHPC rainwater well integrated construction method and device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117428918A (en) * 2023-10-24 2024-01-23 江苏瀚能电气有限公司 Prefabricated UHPC rainwater well integrated construction method and device
CN117428918B (en) * 2023-10-24 2024-04-19 江苏瀚能电气有限公司 Prefabricated UHPC rainwater well integrated construction method and device

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