CN113293802A - Construction method of inspection well - Google Patents
Construction method of inspection well Download PDFInfo
- Publication number
- CN113293802A CN113293802A CN202110740252.8A CN202110740252A CN113293802A CN 113293802 A CN113293802 A CN 113293802A CN 202110740252 A CN202110740252 A CN 202110740252A CN 113293802 A CN113293802 A CN 113293802A
- Authority
- CN
- China
- Prior art keywords
- well
- wall
- inspection well
- mortar
- concrete
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/125—Manhole shafts; Other inspection or access chambers; Accessories therefor characterised by the lining of the shaft
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Sewage (AREA)
Abstract
The invention discloses a construction method of an inspection well, which comprises the following specific steps: 1) preparing a foundation framework, and before installing a well wall body module, manufacturing a C20 concrete foundation cushion layer (1) at the bottom of a well; 2) paying off; 3) building; 4) inserting ribs and filling cores; 5) the inner wall and the outer wall of the well all adopt waterproof cement mortar as a finishing layer; 6) and a mounting cover plate (3). The inspection well is constructed by adopting the concrete module bricks, and the vault is built between the flexible pipe fittings and the inspection well, so that the purposes of quick construction and cost reduction can be achieved under the condition of ensuring the requirement of bearing capacity.
Description
Technical Field
The invention relates to the technical field of underground well construction, in particular to a construction method of an inspection well.
Background
The way that present national standard drawing set is used for flexible pipe pipeline and concrete module inspection shaft connector is reinforced concrete circle roof beam, if construct according to conventional way, need ligature steel reinforcement cage, concreting, construction cycle is longer, and does not have the contact between inspection shaft structure and the flexible pipe buried underground, and the vertical atress of flexible pipe is great, and tubular product is impaired easily, and the inspection shaft structure warp easily promptly, directly influences the safety of later stage use.
Disclosure of Invention
The invention aims to provide a construction method of an inspection well, which can keep the structure stable and has high stress strength.
The technical scheme of the invention is as follows:
a construction method of an inspection well comprises the following specific steps:
1) preparing a foundation framework, and preparing a C20 concrete foundation cushion layer at the bottom of the well before installing the well wall body module;
2) paying off;
3) the first concrete module is positioned according to the requirement of a design drawing, is placed to a corresponding position according to the size of the inspection well, is wound and placed along the shape of the well mouth according to the sizes of the standard block and the corner block, and is poured and fixed;
4) inserting the steel bars, and pouring a core, wherein two rows of inner and outer steel bars are placed in two layers of concrete module brick joints close to the upper part of the arch ring, then the steel bars are arranged on each layer of the outer wall and the inner wall of the well at three layers at intervals in the horizontal direction, and then a triangular steel bar cage is arranged in each concrete module brick concave-convex groove in the vertical direction;
5) the inner wall and the outer wall of the well all adopt waterproof cement mortar as a surface layer, the thickness is 20mm, and the addition amount of the waterproof cement mortar in the mortar is not less than 0.4kg/m3The surface of the polypropylene copper fiber is uniformly and smoothly coated without dead angles.
6) And installing a cover plate.
By adopting the method, the concrete module type inspection well and the flexible pipe are connected in a pipeline mode, MU20 concrete common brick arch coupon is adopted for masonry, and horizontal steel bar configuration is reinforced above the arch coupon structure, the structural form reduces the vertical pressure on the flexible pipe, and the arch coupon is subjected to small bending moment and shearing force due to the fact that the arch coupon structure is opposite to a ring beam structure; the arch coupon structure converts vertical pressure borne by the upper part into pressure T borne by the middle brick building block and horizontal thrust F borne by an arch foot, the compression bearing capacity of the building block and pointing mortar is far greater than the load borne by the inspection well, and the horizontal thrust F is balanced with the pressure of a concrete module of the inspection well wall, so that the load requirement of a heavy-load roadway is met; the bearing capacity is improved, the use of reinforced concrete is reduced, the construction cost is reduced, and the construction process is greatly accelerated because the manufacturing of the concrete module brick and the manufacturing of the inspection well are the forming and refilling type construction, and all stations are synchronously performed.
In order to ensure the pouring strength, in the step 1), preferably, the concrete module is an MU20 concrete module brick, and the masonry mortar is of an M10 grade.
In order to facilitate the guidance of the well opening, preferably, in the step 2), the paying-off is performed by paying off the brick wall along the thickness of the well bottom diameter to four sides according to the design requirement by taking the reserved space center of two adjacent sections of pipes as the center of a circle according to the shape of the inspection well, and popping up the inner edge line and the outer edge line of the well bottom wall body according to the thickness of the well wall, namely the inner edge line and the outer edge line surround to form an annular wall thickness range.
In order to ensure the perpendicularity of the open well, as the optimization, in the paying-off process, according to the size of the inspection well, if an excavated groove is deep, in order to prevent collapse, the size of a releasing slope needs to be tracked at any time during paying-off, and meanwhile, the elevation of the inspection well needs to be controlled well according to a drawing.
In order to facilitate mortar inflow, prevent leakage and improve stability, preferably, in the step 3), the first layer of concrete modules are positioned according to the requirements of a design drawing, the modules are placed correctly according to the size of an inspection well, the number of the modules in each layer of the circular well is selected according to the diameter, the number of the blocks in each layer is determined according to the sizes of standard blocks and corner blocks by the rectangular well, an arch stuffing can be erected on the upper semicircle of the connecting pipe by adopting moulds such as a wood mould, the arch crown can be built after the arch stuffing is inspected to be qualified, arch feet at two sides are symmetrically built towards the center at the same time, and the radial seam of the arch brick is matched with the radius direction of the pipe; adopt M10 cement mortar to build by laying bricks or stones, it should be along with laying bricks or stones to build by laying bricks or stones mortar, the wall body mortar joint should violently flat vertical, build the wall after and collude the flush joint along with hand magma, in order to prevent mortar cavitation and wall body fracture, horizontal mortar joint thickness and vertical mortar joint width all should not exceed 15mm, when building by laying bricks or stones the height and reach the central elevation of road side direction connecting tube, design diameter according to connecting tube, cut out the semicircular groove with the cutting machine with the tubular product diameter, connecting joint seat thick liquid after cutting should closely knit, the unsmooth notch links up firmly, in order to flow in the mortar, prevent the seepage, the chute builds by laying bricks or stones with the wall of a well simultaneously in the well, the unsmooth notch links up firmly.
In order to safely enter and exit the inspection well, preferably, in the step 4), the reserved branch pipes are installed at the same time when the inspection well is built, the pipe diameters, the directions and the elevations of the reserved branch pipes meet the design requirements, and the joints of the pipelines and the well wall are tight; the pipe orifice of the reserved branch pipe is sealed and smoothed by M10 waterproof cement mortar.
In order to improve the stress strength, preferably, in the step 4), C25 concrete is used for pouring the core in the triangular reinforcement cage of the concrete module brick.
Has the advantages that: the inspection well is constructed by adopting the concrete module bricks, and the vault is built between the flexible pipe fittings and the inspection well, so that the purposes of quick construction and cost reduction can be achieved under the condition of ensuring the requirement of bearing capacity.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic diagram of a well wall elevation structure.
Fig. 3 is a view from a-a in fig. 2.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in fig. 1, fig. 2 and fig. 3, the method comprises the following specific steps:
1) preparing a foundation framework, wherein a well wall body adopts concrete modules, the concrete modules adopt MU20 concrete module bricks, before installation, a C20 concrete foundation cushion layer 1 is firstly made at the bottom of a well, and masonry mortar adopts the grade of M10.
2) Paying off, namely paying off to four sides along the thickness dimension of the brick wall with the bottom diameter of the well according to the design requirement by taking the reserved space center of two adjacent sections of pipes as the center of a circle according to the shape of the inspection well 4, and popping up an inner edge line and an outer edge line of a wall body of the well bottom according to the thickness of the well wall, namely the inner edge line and the outer edge line surround to form an annular wall thickness range; in the paying-off process, according to the size of the inspection well 4, if the excavated groove is deep, in order to prevent collapse, the size of the slope is tracked at any time during paying-off, and meanwhile, the elevation of the inspection well is controlled according to a drawing.
3) Building, wherein a first concrete module is positioned according to the requirement of a design drawing, the modules are correctly placed according to the size of an inspection well 4, the number of the modules in each layer of a circular well is selected according to the diameter, the number of the blocks in each layer is determined according to the sizes of a standard block and a corner block in a rectangular well, an arch center can be erected on the upper semicircle of a connecting pipe by adopting moulds such as a wood mould, an arch crown can be built after the arch center is inspected to be qualified, arch legs on two sides are symmetrically built towards the center at the same time, and the radial seam of the arch brick is matched with the radius direction of the pipe; adopt M10 cement mortar to build by laying bricks or stones, it should be along with laying bricks or stones to build by laying bricks or stones mortar, the wall body mortar joint should violently flat vertical, build the wall after and collude the flush joint along with hand magma, in order to prevent mortar cavitation and wall body fracture, horizontal mortar joint thickness and vertical mortar joint width all should not exceed 15mm, when building by laying bricks or stones the height and reach the central elevation of road side direction connecting tube, design diameter according to connecting tube, cut out the semicircular groove with the cutting machine with the tubular product diameter, connecting joint seat thick liquid after cutting should closely knit, the unsmooth notch links up firmly, in order to flow in the mortar, prevent the seepage, the chute builds by laying bricks or stones with the wall of.
4) The method comprises the following steps of inserting steel bars, pouring a core, putting two rows of inner and outer steel bars into two layers of brick joints of concrete modules immediately above an arch ring, arranging the steel bars on each layer (preferably 180mm) of the outer wall and three layers (preferably 540mm) of the inner wall of a well at intervals in the horizontal direction, and arranging a triangular steel bar cage 2 in a concave-convex groove of each concrete module brick in the vertical direction; the reserved branch pipes are installed at the same time when the inspection well 4 is built, the pipe diameter, the direction and the elevation of the reserved branch pipes meet the design requirements, and the joint of a pipeline and a well wall is tight; the pipe orifice of the reserved branch pipe is sealed and leveled by M10 waterproof cement mortar, and the triangular reinforcement cage 2 is filled with C25 concrete.
5) The inner wall and the outer wall of the well are all adoptedThe waterproof cement mortar is used as a surface layer 41, the thickness is 20mm, and the addition amount of the waterproof cement mortar is not less than 0.4kg/m3The surface of the polypropylene copper fiber is uniformly and smoothly coated without dead angles.
6) And a mounting cover plate 3.
In the construction process, the inspection well 4 constructed by concrete module bricks is built by adopting MU20 common concrete brick arch coupon between the flexible pipe and the inspection well 4, and horizontal steel bar configuration is reinforced above the arch coupon structure, the structural form reduces vertical pressure to the flexible pipe, and the arch coupon is subjected to small bending moment and shearing force relative to a ring beam structure; the arch coupon structure converts vertical pressure borne by the upper part into pressure T borne by the middle brick building block and horizontal thrust F borne by an arch foot, the compression bearing capacity of the building block and pointing mortar is far greater than the load borne by the inspection well, and the horizontal thrust F is balanced with the pressure of a concrete module of the inspection well wall, so that the load requirement of a heavy-load roadway is met; the bearing capacity is improved, the use of reinforced concrete is reduced, the construction cost is reduced, and the construction process is greatly accelerated because the manufacturing of the concrete module brick and the manufacturing of the inspection well 4 are the forming and refilling type construction, and all stations are synchronously performed.
The undescribed parts of the present invention are consistent with the prior art and will not be described in detail herein.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structures made by using the contents of the present specification and the drawings can be directly or indirectly applied to other related technical fields, and are within the scope of the present invention.
Claims (7)
1. A construction method of an inspection well is characterized in that: the method comprises the following specific steps:
1) preparing a foundation framework, and before installing a well wall body module, manufacturing a C20 concrete foundation cushion layer (1) at the bottom of a well;
2) paying off;
3) the first concrete module is positioned according to the requirement of a design drawing, the modules are placed to corresponding positions according to the size of the inspection well (4), and are wound and placed along the shape of a well mouth according to the sizes of the standard block and the corner block, and the modules are poured and fixed;
4) the method comprises the following steps of inserting steel bars, pouring a core, putting two rows of inner and outer steel bars into two layers of brick joints of concrete modules close to the upper part of an arch ring, arranging steel bars on each layer of the outer wall and the inner wall of a well at three layers at intervals in the horizontal direction, and arranging a triangular steel bar cage (2) in a concave-convex groove of each concrete module brick in the vertical direction;
5) the inner wall and the outer wall of the well all adopt waterproof cement mortar as a surface layer (41), the thickness is 20mm, and the addition amount in the mortar is not less than 0.4kg/m3The surface of the polypropylene copper fiber is uniformly and smoothly coated without dead angles.
6) And a mounting cover plate (3).
2. The construction method of an inspection well according to claim 1, wherein: in the step 1), the concrete module is an MU20 concrete module brick, and the masonry mortar is of an M10 grade.
3. The construction method of an inspection well according to claim 1, wherein: in the step 2), paying off is carried out by taking the reserved space center of two adjacent sections of pipes as a circle center according to the shape of the inspection well (4), paying off to four sides along the thickness dimension of the brick wall with the diameter of the well bottom according to design requirements, and popping up an inner edge line and an outer edge line of the wall body of the well bottom according to the thickness of the well wall, namely the inner edge line and the outer edge line surround to form an annular wall thickness range.
4. A construction method of an inspection well according to claim 3, wherein: in the paying-off process, according to the size of the inspection well (4), if the excavated groove is deep, in order to prevent collapse, the size of the paying-off slope needs to be tracked at any time during paying-off, and meanwhile, the elevation of the inspection well needs to be controlled well according to a drawing.
5. The construction method of an inspection well according to claim 1, wherein: in the step 3), the first concrete module is positioned according to the requirement of a design drawing, the modules are placed according to the correct size of the inspection well (4), the number of the modules in each layer of the circular well is selected according to the diameter, the number of the blocks in each layer is determined according to the sizes of the standard blocks and the corner blocks in the rectangular well, an arch stuffing can be erected on the upper semicircle of the connecting pipe by adopting moulds such as a wood mould, the arch stuffing can be built after being inspected to be qualified, arch crowns are symmetrically built from two sides of arch feet to the center at the same time, and the radial seam of the arch brick is matched with the radius direction of the pipe; adopt M10 cement mortar to build by laying bricks or stones, it should be along with laying bricks or stones to build by laying bricks or stones mortar, the wall body mortar joint should violently flat vertical, build the wall after and collude the flush joint along with hand magma, in order to prevent mortar cavitation and wall body fracture, horizontal mortar joint thickness and vertical mortar joint width all should not exceed 15mm, when building by laying bricks or stones the height and reach the central elevation of road side direction connecting tube, design diameter according to connecting tube, cut out the semicircular groove with the cutting machine with the tubular product diameter, connecting joint seat thick liquid after cutting should closely knit, the unsmooth notch links up firmly, in order to flow in the mortar, prevent the seepage, the chute builds by laying bricks or stones with the wall of a well simultaneously in the well, the unsmooth notch links up firmly.
6. The construction method of an inspection well according to claim 1, wherein: in the step 4), the reserved branch pipes are installed simultaneously when the inspection well (4) is built, the pipe diameter, the direction and the elevation of the reserved branch pipes meet the design requirements, and the joint of a pipeline and a well wall is tight; the pipe orifice of the reserved branch pipe is sealed and smoothed by M10 waterproof cement mortar.
7. The construction method of an inspection well according to claim 1, wherein: in the step 4), C25 concrete is adopted to fill the core in the triangular reinforcement cage (2) of the concrete module brick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110740252.8A CN113293802A (en) | 2021-06-29 | 2021-06-29 | Construction method of inspection well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110740252.8A CN113293802A (en) | 2021-06-29 | 2021-06-29 | Construction method of inspection well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113293802A true CN113293802A (en) | 2021-08-24 |
Family
ID=77330127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110740252.8A Pending CN113293802A (en) | 2021-06-29 | 2021-06-29 | Construction method of inspection well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113293802A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114000544A (en) * | 2021-11-18 | 2022-02-01 | 中国二十二冶集团有限公司 | Construction method of concrete module brick inspection well |
| CN114293591A (en) * | 2022-01-24 | 2022-04-08 | 中国化学工程第十四建设有限公司 | Combination device of HPVC-U flexible pipe and concrete inspection well |
| CN114941346A (en) * | 2022-03-21 | 2022-08-26 | 中国五冶集团有限公司 | Construction method of circular concrete module inspection well |
| CN115434369A (en) * | 2022-09-29 | 2022-12-06 | 中国二十二冶集团有限公司 | Modular inspection well masonry method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101279888B1 (en) * | 2012-06-11 | 2013-06-28 | 김태형 | Constant conduit protection manhole and that construction methods |
| CN109372086A (en) * | 2018-11-21 | 2019-02-22 | 中国三冶集团有限公司 | A kind of construction method of simple easily construction drainage well |
| CN210975889U (en) * | 2019-07-31 | 2020-07-10 | 福建四方如钢市政工程有限公司 | Concrete module for inspection well wall and pipeline interface |
| CN213508795U (en) * | 2020-08-26 | 2021-06-22 | 中铁十局集团有限公司 | Concrete module type inspection well shaft structure and concrete module brick |
-
2021
- 2021-06-29 CN CN202110740252.8A patent/CN113293802A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101279888B1 (en) * | 2012-06-11 | 2013-06-28 | 김태형 | Constant conduit protection manhole and that construction methods |
| CN109372086A (en) * | 2018-11-21 | 2019-02-22 | 中国三冶集团有限公司 | A kind of construction method of simple easily construction drainage well |
| CN210975889U (en) * | 2019-07-31 | 2020-07-10 | 福建四方如钢市政工程有限公司 | Concrete module for inspection well wall and pipeline interface |
| CN213508795U (en) * | 2020-08-26 | 2021-06-22 | 中铁十局集团有限公司 | Concrete module type inspection well shaft structure and concrete module brick |
Non-Patent Citations (2)
| Title |
|---|
| NHDX011: "混凝土模块检查井砌筑方法", 《豆丁建筑》 * |
| 山西建筑: "市政工程中埋地塑料排水管道的运用", 《山西建筑》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114000544A (en) * | 2021-11-18 | 2022-02-01 | 中国二十二冶集团有限公司 | Construction method of concrete module brick inspection well |
| CN114293591A (en) * | 2022-01-24 | 2022-04-08 | 中国化学工程第十四建设有限公司 | Combination device of HPVC-U flexible pipe and concrete inspection well |
| CN114941346A (en) * | 2022-03-21 | 2022-08-26 | 中国五冶集团有限公司 | Construction method of circular concrete module inspection well |
| CN115434369A (en) * | 2022-09-29 | 2022-12-06 | 中国二十二冶集团有限公司 | Modular inspection well masonry method |
| CN115434369B (en) * | 2022-09-29 | 2023-06-27 | 中国二十二冶集团有限公司 | Modular manhole masonry method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113293802A (en) | Construction method of inspection well | |
| WO2018219024A1 (en) | Steel-plate-encased precast concrete column foot joint and construction method therefor | |
| WO2018219196A1 (en) | Precast column base joint and construction method therefor | |
| CN102425310B (en) | Assembly-type residential shear wall structural wall body vertical connection construction method | |
| CN105350562A (en) | Inserting type column leg with accurate leveling device and construction method of inserting type column leg | |
| CN103850363B (en) | Prefabricated through hole assembly type reinforced concrete shear wall and construction method of prefabricated through hole assembly type reinforced concrete shear wall | |
| US9714495B2 (en) | Pre-stressed molded wall, and method for creating such a wall | |
| CN109812620B (en) | Method for encapsulating one-time pouring large-caliber steel pipe concrete | |
| CN111042185B (en) | Construction method of basement raft foundation with tower crane foundation | |
| CN216131506U (en) | Hydraulic engineering prefabricated inspection shaft and drain pipe connection structure | |
| CN203769116U (en) | Prefabricated through hole assembly type reinforced concrete shear wall | |
| CN106193644A (en) | Basement reconstruction structure with raft foundation building | |
| CN104099946A (en) | Novel jacking pipe intersegment overhaul well | |
| CN102808403A (en) | Precast tubular pile and construction method thereof | |
| CN111173033A (en) | Prefabricated pipe gallery structure and pipe jacking method construction method thereof | |
| CN110552378A (en) | Underground space roof subsides post-cast strip and seals structure in advance | |
| CN215289655U (en) | Connecting structure for fixedly connecting reinforced concrete pier stud and upper steel box girder of motor vehicle bridge | |
| CN211621964U (en) | Connecting node for reverse-construction concrete-filled steel tubular column and sequential-construction steel tubular column | |
| CN104453013A (en) | Prefabricated wall component and fabricated reinforced concrete shear wall | |
| KR101701495B1 (en) | Top-down construction method using steel tube column with horizontal and vertical reinforcement | |
| JP2023549700A (en) | Wind power plant foundation structure | |
| CN114319329A (en) | Anchor rod static pressure mould pipe device and cast-in-place pile construction method | |
| CN206279522U (en) | Ground-connecting-wall steel reinforcement cage | |
| CN209620299U (en) | Overlapped shear wall plate and overlapped shear wall | |
| KR20200005841A (en) | Rainwater storage tank construction method using top-down method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210824 |
|
| RJ01 | Rejection of invention patent application after publication |