Construction method of novel inspection well

Abstract

The invention provides a novel inspection well construction method, which relates to the technical field of inspection well construction, and comprises the steps of foundation pit excavation, foundation treatment, gravel laying and concrete pouring. The revit modeling technology is adopted for modeling each inspection well and the pipeline elevation; the revit modeling technology is adopted for modeling each inspection well and the pipeline elevation; standard bricks are laid on the concrete according to revit modeling technical data; a prefabricated structure well wall is placed on the standard cone bricks on the lower portion; a municipal pipeline is placed in the well wall of the prefabricated structure; and plastering cement mortar inside and outside the inspection well, and the like. By adopting the construction mode of combining bricking and prefabrication, the drainage pipeline can be positioned, and the water leakage phenomenon can be effectively reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of inspection well construction, in particular to a construction method of a new inspection well. BACKGROUND

[0002] At present, due to the influence of slope, the pipe elevation of each inspection well is different, and the common construction methods of the inspection well on site include prefabricated inspection well and brick inspection well. The well wall of the prefabricated inspection well is prefabricated as a whole, and the position and size of the reserved pipe opening often cannot be connected to the inspection well or the reserved interface position is not correct. Although the brick inspection well adopts the method of mortar brick masonry, it can meet the position positioning requirements of the pipe, but it is easy to produce water seepage and leakage. SUMMARY

[0003] In view of the above prior art, the present application provides a construction method of a new inspection well, which is especially suitable for old community renovation and provides help for new project municipal field.

[0004] The construction method of the new inspection well provided by the present application comprises the following steps: S1, foundation pit excavation, foundation treatment, gravel laying and concrete pouring: measure and release the pipe center line and the trench edge line; the excavator excavates the earthwork according to the trench edge line, excavates a distance above the elevation, and then excavates manually; the foundation is treated, the inspection well foundation is compacted by using the gravel cushion after the treatment is completed, C25 concrete is poured, and the elevation is re-measured after the construction is completed; S2, modeling each inspection well and pipe elevation by using revit modeling technology: survey the site conditions, model each inspection well and pipe elevation by using revit modeling technology according to the requirements of the drawings; S3, manufacturing prefabricated structure well wall according to the revit modeling size standard: according to the three-dimensional modeling size after revit modeling, the size of each inspection well and pipe is counted, and the result is optimized to reduce the different sizes of the inspection well wall and unify the prefabricated structure well wall; S4, laying standard bricks on the concrete by comparing the revit modeling technology data: according to the position and elevation of each inspection well and pipe obtained by the three-dimensional model, the height of the lower standard brick is calculated reversely according to the position of the pipe opening of the prefabricated structure well wall, and then the lower standard brick is laid; S5, placing the prefabricated structure well wall on the lower standard brick: the inspection well is assembled by four prefabricated structure well walls on the lower standard brick; S6. Place the municipal pipeline in the prefabricated well wall and complete the construction of the standard bricks on the upper part of the inspection well: After the prefabricated well wall is assembled, place the municipal pipeline in it, re-measure the pipeline elevation, and complete the laying of the standard bricks on the upper part of the inspection well; S7. Cement mortar plastering inside and outside the inspection well: Carry out cement mortar plastering inside and outside the inspection well.

[0005] Preferably, in S1, the part with poor geology is replaced and the part with higher groundwater level is dewatered.

[0006] Preferably, in S4, before laying, the standard bricks are fully moistened and overlapped with cement mortar. During masonry, the mortar is filled in the joints, the joints are staggered up and down, and the joints are overlapped inside and outside. The mortar is fully filled in the brick joints, and there must be no through joints. The joint width is 10 mm.

[0007] Preferably, in S5, the finished surface heights of the standard bricks and the prefabricated structure well wall of the straight well are at the same level; the finished surface heights of the standard bricks and the prefabricated structure well wall of the three-way or four-way well are not at the same level.

[0008] Preferably, in S7, the inner wall of the inspection well is plastered with polymer cement mortar, and the outer wall is plastered with waterproof cement mortar.

[0009] Compared to existing technologies, the present invention offers the following advantages: A novel construction method for manholes, combining brickwork and prefabrication, allows for positioning drainage pipes at different elevations and effectively reduces water leakage. Revit modeling technology provides a direct understanding of the site, improves the accuracy of prefabricated structures and elevations, and reduces unnecessary rework time. This invention has broad application prospects and can provide a reference for renovation projects in older residential areas. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a construction schematic diagram of the construction method of the new inspection well in an embodiment of the present invention.

[0011] In the figure: 1. Gravel cushion; 2. C25 concrete; 3. Pipe opening; 4. Prefabricated well wall; 5. Standard bricks; 6. Cement mortar. DETAILED DESCRIPTION

[0012] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific embodiments.

[0013] Example: Figure 1 A novel method for constructing an inspection well is shown, comprising the following steps: S1, foundation pit excavation, foundation treatment, laying of gravel, pouring of concrete: measurement of setting-out line, setting-out of pipeline center line and trench edge line; earthwork excavation by excavator according to trench edge line, manual excavation after excavation to 50 cm above the elevation; foundation treatment, replacement treatment for parts with poor geology, dewatering treatment for parts with high underground water level, and inspection well foundation is padded with gravel cushion after treatment, C25 concrete is poured, and elevation is re-measured after construction is completed; S2, modeling of each inspection well and pipeline elevation using revit modeling technology: surveying the site, modeling of each inspection well and pipeline elevation using revit modeling technology according to the requirements of the drawings, the position and elevation of each inspection well and pipeline can be clearly seen by observing the three-dimensional model after modeling, the site is better understood, and unnecessary rework time is reduced; S3, making prefabricated structure well wall according to revit modeling size standard: due to different sizes of municipal pipelines, the opening height and size of inspection well walls are also different, the size of each inspection well and pipeline is counted according to the three-dimensional modeling size after revit modeling, and the different sizes of inspection well walls are optimized according to the counted results to uniformly make prefabricated structure well walls 4; S4, laying standard bricks on concrete according to revit modeling technology data: the position and elevation of each inspection well and pipeline are obtained through the three-dimensional model, the height of the lower standard bricks 5 is calculated reversely according to the position of the pipeline opening 3 of the prefabricated structure well wall 4, and then the lower standard bricks 5 are laid; before laying, the standard bricks 5 are fully moistened and overlapped with cement mortar, and the mortar is fully filled in the joints, the bricks are laid with up and down staggered joints, the inside and outside are overlapped, the mortar is fully filled in the joints, there is no through joint, and the joint width is 10 mm; S5, placing prefabricated structure well wall on the lower standard bricks: four prefabricated structure well walls 4 are assembled on the lower standard bricks 5 to form an inspection well; the standard bricks and the finished surface height of the prefabricated structure well of a straight-through well are at the same horizontal height; the standard bricks and the finished surface height of the prefabricated structure well of a three-way or four-way well are not at the same horizontal height; S6, placing municipal pipeline in prefabricated structure well wall and completing the construction of upper standard bricks of inspection well: after the prefabricated structure well wall 4 is assembled, the municipal pipeline is placed in it, the pipeline elevation is re-measured, and the laying of the upper standard bricks 5 of the inspection well is completed, the laying method of the upper standard bricks 5 is the same as that of the lower standard bricks 5; S7, cement mortar finishing inside and outside of inspection well: cement mortar 6 finishing inside and outside of inspection well, among which, the inner wall of the inspection well is finished with polymer cement mortar, and the outer wall is finished with waterproof cement mortar.

[0014] The embodiment can position the drainage pipeline by adopting the construction mode of combination of bricklaying and prefabrication, and can effectively reduce the water leakage phenomenon.

[0015] The above is only the embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent scheme, direct or indirect application in other related technical fields, is also within the patent protection scope of the present application.

Claims

1. A new type of inspection well construction method, characterized in that: The steps include: S1. Excavation of foundation pit, ground treatment, laying of crushed stone, pouring of concrete: measurement and layout, laying out the center line of the pipeline and the edge line of the trench; excavation by excavator according to the edge line of the trench, and manual excavation after excavation to a certain distance above the elevation; foundation treatment, after treatment, use crushed stone cushion layer (1) to tamp the inspection well foundation, and pour C25 concrete (2). After construction is completed, re-measure the elevation; S2. Use Revit modeling technology to model each inspection well and pipeline elevation: Survey the site conditions and use Revit modeling technology to model each inspection well and pipeline elevation according to the requirements of the drawings; S3. Model each inspection well and pipeline elevation using Revit modeling technology: Use the three-dimensional modeling dimensions after Revit modeling to calculate the size of each inspection well and pipeline, optimize based on the statistical results, reduce the different sizes of the inspection well walls, and uniformly produce prefabricated structure well walls (4); S4. Laying standard bricks on the concrete according to the Revit modeling technical data: Obtain the position and elevation of each inspection well and pipeline through the three-dimensional model, and after reversely calculating the height of the lower standard brick (5) according to the position of the pipeline opening (3) of the prefabricated structure well wall (4), lay the lower standard brick (5); S5. Place the prefabricated well wall on the lower standard bricks: the inspection well is composed of four prefabricated well walls (4) assembled on the lower standard bricks (5); S6. Place the municipal pipeline in the prefabricated well wall and complete the construction of the standard bricks on the upper part of the inspection well: After the prefabricated well wall (4) is assembled, place the municipal pipeline in it, re-measure the pipeline elevation, and complete the laying of the standard bricks (5) on the upper part of the inspection well; S7. Cement mortar plastering inside and outside the inspection well: Carry out cement mortar (6) plastering inside and outside the inspection well.

2. The construction method of the new inspection well according to claim 1 is characterized in that: In S1, the parts with poor geology are replaced and the parts with higher groundwater levels are dewatered.

3. The construction method of the new inspection well according to claim 1 or 2, characterized in that: In S4, before laying, the standard bricks (5) are fully moistened and overlapped with cement mortar. During the laying process, the mortar is filled in the joints, the joints are staggered up and down, and the joints are overlapped inside and outside. The mortar is fully filled in the brick joints, and there must be no through joints. The joint width is 10 mm.

4. The construction method of the new inspection well according to claim 1 or 2, characterized in that: In S5, the finished surface heights of the standard bricks and the prefabricated structure well wall of the straight-through well are at the same horizontal height; the finished surface heights of the standard bricks and the prefabricated structure well wall of the three-way or four-way well are not at the same horizontal height.

5. The construction method of the new inspection well according to claim 1 or 2, characterized in that: In S7, the inner wall of the inspection well is plastered with polymer cement mortar, and the outer wall is plastered with waterproof cement mortar.

Images