CN215253314U - Prefabricated inspection well template - Google Patents

Abstract

The utility model discloses a prefabricated inspection shaft template, including prefabricated steel mould of well room and the prefabricated steel mould of pit shaft, the prefabricated steel mould of well room and the prefabricated steel mould tip of pit shaft are provided with end mould one and end mould two respectively, and the fashioned pit shaft tip of end mould two and the fashioned pit shaft tip of end mould form the matching tongue-and-groove. The utility model discloses a two kinds of prefabricated steel mould production well room and pit shaft, install the pit shaft during the use on the keysets of well room side, realize the quick prefabrication of inspection shaft, improved the construction operation flow, not only can guarantee construction quality, can also the off-the-shelf whole quality of assurance inspection shaft and appearance quality of at utmost, the well room and the pit shaft of production all can perfectly be suitable for in the high inspection shaft work progress of multi-level, the impervious performance of inspection shaft has obtained very big promotion simultaneously.

Description

Prefabricated inspection well template

Technical Field

The utility model belongs to the technical field of the sewage inspection shaft, a prefabricated inspection shaft template is related to.

Background

The construction of the agricultural sewage pipe network is complex in topography, original appearance elevation transformation is large, the height of each sewage inspection well is different, the inspection well with each height under the conventional construction process needs to adopt customized templates with different heights or wood templates and brick beds manufactured on site for inspection well construction, the height of an inspection well finished product purchased on the market is single and cannot meet actual use, unnecessary parts need to be chiseled manually before the site use, and the two methods can cause the phenomena that the construction quality of the inspection well is high in control difficulty, material waste is serious and the like.

Disclosure of Invention

The to-be-solved technical problem of the utility model is: the utility model provides a prefabricated inspection shaft template to solve the technical problem that exists among the prior art.

The utility model discloses the technical scheme who takes does: a prefabricated inspection well template comprises a well room prefabricated steel die and a shaft prefabricated steel die, wherein the end parts of the well room prefabricated steel die and the shaft prefabricated steel die are respectively provided with a first end die and a second end die, and matching tongue-and-grooves are formed in the shaft end part formed by the second end die and the shaft end part formed by the first end die.

Preferably, the well chamber prefabricated steel mould comprises a first well chamber semicircular template and a second well chamber semicircular template, a first flange plate is arranged at the butt joint of the first well chamber semicircular template and the second well chamber semicircular template, and the two first flange plates at the butt joint are fixedly connected through a first bolt.

Preferably, the first well chamber semicircular template and the second well chamber semicircular template are respectively provided with a first reinforcing rib plate in the circumferential direction and the longitudinal direction.

Preferably, the first flange plate is provided with a corresponding first U-shaped notch, one end of the bolt is hinged to the second well chamber semicircular template through the first pin, and the other end of the bolt is locked by the first nut after being clamped into the corresponding first U-shaped notches in a rotating mode.

Preferably, the shaft prefabricated steel mould comprises a shaft semicircular template I and a shaft semicircular template II, flange plates II are arranged at the butt joint positions of the shaft semicircular template I and the shaft semicircular template II, and the two flange plates II at the butt joint positions are fixedly connected through bolts II.

Preferably, the reinforcing rib plate II is arranged on the shaft semicircular template I and the shaft semicircular template II in the circumferential direction and the longitudinal direction.

Preferably, the flange plate II is provided with a corresponding U-shaped notch II, one end of the bolt II is hinged to the shaft semicircular template II through the pin II, and the other end of the bolt II is locked by the nut II after being clamped into the two corresponding U-shaped notches II in a rotating mode.

Preferably, an inner partition board is arranged in the shaft prefabricated steel mould, different shaft grooves and tongues are arranged at two ends of the inner partition board, a second limiting groove is arranged on the periphery of the inner partition board, and the second limiting groove is limited by inner limiting strips on the first shaft semicircular template and the second shaft semicircular template respectively.

Preferably, the first end die and the second end die are limited on the well chamber prefabricated steel die and the shaft prefabricated steel die through end limiting plates.

The utility model has the advantages that: compared with the prior art, the utility model produces the well chamber and the shaft through two prefabricated steel moulds, when in use, the shaft is arranged on the adapter plate of the well chamber side, thereby realizing the rapid prefabrication of the inspection well, improving the construction operation process, not only ensuring the construction quality, but also ensuring the overall quality and the appearance quality of the finished product of the inspection well to the maximum extent, the produced well chamber and the shaft can be perfectly applied in the construction process of the multi-level height inspection well, simultaneously, the impermeability of the inspection well is greatly improved, the shafts with different lengths are produced through the inner baffle, the construction problem of how the prefabricated well meets the construction problems of the on-site various height sewage inspection wells is solved, the problem that the prefabricated inspection well is widely applied to the inspection well under the condition of complex terrain is redefined, the centralized prefabrication mode is adopted in advance when the on-site use is fully met, the working efficiency is improved, the construction progress is accelerated, unnecessary material waste is avoided, construction cost is greatly saved, a cast-in-place template is not needed to be customized for the inspection well which cannot be high on site, and material consumption is greatly reduced.

Drawings

FIG. 1 is a schematic structural diagram of a well chamber prefabricated steel die;

FIG. 2 is a schematic diagram of the structure of the right side of a well chamber prefabricated steel mold;

FIG. 3 is a front view of a bolt-on connection;

FIG. 4 is a side view of the bolt joint;

FIG. 5 is a schematic top view of the flange plate;

FIG. 6 is a schematic view of an end mold configuration of type A;

FIG. 7 is a schematic view of a B-shaped end mold structure;

FIG. 8 is a schematic view of a C-shaped end mold configuration;

FIG. 9 is a schematic structural diagram of a prefabricated steel mold for a shaft;

FIG. 10 is a front view of the second bolt connection;

FIG. 11 is a schematic top view of a second flange plate;

FIG. 12 is a schematic structural view of a type A end mold II;

FIG. 13 is a schematic structural view of a B-shaped end mold II;

FIG. 14 is a structural view of a C-shaped end mold II;

FIG. 15 is a schematic view of a ring-shaped inner partition plate structure;

FIG. 16 is a schematic illustration of an isometric well bore stack-up configuration;

FIG. 17 is a schematic illustration of a stacked configuration of wellbores of unequal lengths;

FIG. 18 is a schematic view of well chamber to well chamber and well chamber to bottom plate assembly;

FIG. 19 is a schematic view of the pedestal slurry treatment of the bottom plate seam in FIG. 18 (with a high outside and a low inside water penetration direction, and a significant water penetration resistance effect);

FIG. 20 is a schematic view of the slurry treatment of the joint between the well casing shown in FIG. 18 (the water penetration direction is high at the outside and low at the inside, and the effect of the water penetration is obvious).

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments.

Example 1: as shown in fig. 1-20, a prefabricated inspection well template comprises a well room prefabricated steel die 1 and a shaft prefabricated steel die 2, wherein end parts of the well room prefabricated steel die 1 and the shaft prefabricated steel die 2 are respectively provided with a first end die 3 and a second end die 4, and a matching tongue-and-groove is formed at the end part of a shaft with the diameter of 1.8m formed by the second end die 4 and the end part of a well room formed by the first end die 3.

Preferably, the well room prefabricated steel mould 1 comprises a first well room semicircular template 5 and a second well room semicircular template 6, the butt joint of the first well room semicircular template 5 and the second well room semicircular template 6 is provided with a first flange plate 7, the two first flange plates 7 at the butt joint are fixedly connected through a first bolt 8, and the first flange plates 7, the first well room semicircular template 5 and the second well room semicircular template 6 are provided with reinforcing rib plates 25.

Preferably, the first reinforcing rib plate 9 is arranged on the first well chamber semicircular template 5 and the second well chamber semicircular template 6 in the circumferential direction and the longitudinal direction.

Preferably, the first flange plate 7 is provided with a corresponding U-shaped notch 10, one end of a bolt 8 is hinged to the second semicircular well chamber template 6 through a pin 11, the other end of the bolt is locked by a nut 12 after being clamped into the corresponding U-shaped notches 10 in a rotating mode, the pin 11 is connected to the two connecting lug plates 25 in a rotating mode, and the two connecting lug plates 25 are fixedly connected to the second semicircular well chamber template 6.

Preferably, the shaft prefabricated steel die 2 comprises a shaft semicircular template I13 and a shaft semicircular template II 14, flange plates II 15 are arranged at the butt joint of the shaft semicircular template I13 and the shaft semicircular template II 14, and the two flange plates 15 at the butt joint are fixedly connected through bolts II 16.

Preferably, the reinforcing rib plate II 17 is arranged on the shaft semicircular template I13 and the shaft semicircular template II 14 in the circumferential direction and the longitudinal direction.

Preferably, the second flange plate 15 is provided with a second corresponding U-shaped notch 18, one end of a second bolt 16 is hinged to the second shaft semicircular template 14 through a second pin 19, and the other end of the second bolt is locked by a second nut after being rotatably clamped into the second corresponding U-shaped notch 18.

Preferably, the shaft prefabricated steel die 2 is internally provided with an inner baffle plate 20, two ends of the inner baffle plate 20 are provided with different shaft grooves and tongues, a second limiting groove 21 is formed in the periphery of the inner baffle plate 20, the second limiting groove 21 is limited by a first shaft semicircular template 13 and an inner limiting strip 22 on a second shaft semicircular template 14 respectively, the inner baffle plates are two, the three lengths of the production places, namely shafts with the lengths of 1m, 0.5m and 0.3m or three shafts with the length of 0.6m, can meet the assembly requirements of various shafts with the height of 0.1m increased each time from more than 0.5 m.

Preferably, the first end mold 3 and the second end mold 4 are limited on the well chamber prefabricated steel mold 1 and the shaft prefabricated steel mold 2 through end limiting plates 23.

Meanwhile, the end head die adopts the design of the circumferential clamping grooves on the side surfaces, the assembling and assembling processes of the whole die plate are very simple, and the quality of the produced prefabricated shaft is also guaranteed very high.

The economic benefit comparison analysis of the prefabricated well and the cast-in-place well template is specifically as follows:

from the analysis comparison of the above table, we can find that 1170 yuan can be saved after each well is manufactured and installed by using the improved prefabricated well template, about 5600 inspection wells are saved in the 9 provincial rural sewage treatment demonstration village projects implemented by us at present, 6552000 yuan is saved in the total, and 1170 × 3500 ═ 4095000 yuan is saved in the subsequent 7 urban rural sewage treatment demonstration village projects.

Example 2: a method of using a prefabricated manhole template, the method comprising the steps of:

(1) manufacturing and installing reinforcement cage

The steel reinforcement cage adopts the specially-customized seam welder manufacturing process to process, the process mainly comprises main reinforcement positioning, stirrup straightening, stirrup winding and steel reinforcement welding (carbon dioxide protection) molding in a body, a main reinforcement penetrates through a reinforcement penetrating pipe of a fixed disc and is inserted into a reinforcement fixing sleeve of a movable disc to be fixed, a rotary fastening bolt fixes the steel reinforcement, the end of the stirrup penetrates through a material feeding guide roller and is welded on one main reinforcement, a manual or automatic button is started, then the stirrup is wound on the main reinforcement through the rotation of a fixed rotating disc and a movable rotating disc, and after the stirrup is wound on the main reinforcement, manual secondary protection welding is carried out, so that the product steel reinforcement cage is formed;

the stirrup sleeve of the movable disc must be accurately positioned and firmly fixed, so that the main reinforcement spacing of the manufactured reinforcement cage is ensured to be strictly and uniformly arranged according to the requirements of a drawing set, and then the setting of parameters in the construction starting process is noticed, and the accurate debugging is required to ensure the stirrup spacing and the welding quality of the reinforcement cage;

(2) template design and assembly

1) Wellbore template design

The diameter of the shaft inspection well is 0.9m, the main panel of the template adopts a Q235 steel plate with the thickness of 5mm, the upper limiting plate and the lower limiting plate adopt Q235 steel plates with the thickness of 14mm, the transverse ribs and the vertical ribs adopt Q235 steel plates, the distance is 30cm, the left flange plate and the right flange plate of the circular arc template adopt Q235 steel plates with the thickness of 20mm, triangular stiffening plates are arranged every 20cm, and 40 sets of templates are processed, wherein each set is 2 m;

for the production of the adjusting well section, the template is divided into two types in a mode of welding a limiting clamping steel bar fixing retainer ring on the inner wall of a 2m steel template, wherein the first type is 30cm/50cm/100cm, and the second type is 60cm/60cm/60cm, so that inspection wells with various heights required by the site are met;

2) end form design

The well chamber end die template and the shaft end die template are both formed by processing an integral steel block on a lathe. The outer diameter of the well chamber end die template is 120cm, the inner diameter of the well chamber end die template is 100cm, and the thickness of the whole end die is 7.6 cm; the outer diameter of the shaft end die template is 90cm, the inner diameter of the shaft end die template is 70cm, and the thickness of the whole end die template is 7.6 cm; the outer diameter of the shaft retainer ring template is 90cm, the inner diameter of the shaft retainer ring template is 70cm, and the thickness of the whole retainer ring template is 11.6 cm;

3) mold assembly

The inner walls of the retainer ring, the end mold and the template are coated with release agents, mold assembly is carried out outside the steel reinforcement framework, a gantry crane is adopted for hoisting and mold assembly, and the end mold and the retainer ring are closely attached to the well casing template of the well chamber during mold assembly; the side die is connected in a bolt connection mode, and a gasket must be added by a bolt during connection;

(3) pit shaft concrete pouring (Belt pulley feeding, concrete rolling and centrifugal molding)

A prefabrication factory selects a small concrete mixer with 0.23 square/bin, the mixing capacity of the small concrete mixer just meets the production requirement (the concrete consumption of a well chamber is 0.68 square, the concrete consumption of a shaft is 0.452 square), dry and hard concrete is mixed by the mixer and then is conveyed into a template on a pipe hanger through two horizontal mutually vertical conveying belts to be fed, a feeding vehicle travels back and forth along a steel rail with a fixed position on the ground during feeding, so that the conveying belts move back and forth, the feeding mode adopts three-point feeding, namely the front part, the rear part and the middle part of a pouring mold, the feeding position and the feeding speed can be manually controlled by a controller during feeding, and simultaneously, due to the characteristics of the dry and hard concrete, the feeding of each bin of concrete is finished within half an hour;

the main driving shaft of the pipe hanging machine is driven by the main motor to rotate so as to drive the mould (a reinforcement cage is arranged in the well chamber template) to rotate together, the speed is increased from slow to fast, and the final speed reaches 700 plus 800 r/min. The concrete in the mould is attached to the inner wall of the pipe under the action of centrifugal force due to high-speed rotation of the mould, the concrete in the mould is compacted under the dual action of the centrifugal force and the rolling of the driving shaft after the concrete is gradually filled, feeding is stopped when the concrete in the mould is 5-10 mm higher than the inner diameter of the mould, the rotating speed of a motor is adjusted after the rolling is carried out for 120-180 s to be 1100-1300 r/min, then the rolling is carried out for about 120s, polished ash (cement: fine sand is mixed in a ratio of 1: 1) is manually filled by a shovel, then the power supply of the main motor is cut off, the driving shaft is slowly and naturally stopped, and the whole manufacturing process is controlled to be 10-15 min. In addition, a step embedded part needs to be inserted in advance before the precast well is initially set;

(4) form panel removal and maintenance

After the prefabricated well is molded, the prefabricated well and the die are adjusted to a maintenance area by the gantry crane for initial maintenance, manual watering maintenance is adopted for the engineering maintenance, watering is not too much each time, and the inner surface of the prefabricated well and the outer surface of the template are kept moist. And (3) after the strength of the precast well concrete reaches 70% of the design strength, the template can be dismantled, the operations are carried out according to the sequence of end mould dismantling → plug mould dismantling → side mould dismantling, and the dismantled template needs to be immediately ground and brushed with oil for the next use. After the form removal is finished, hoisting the prefabricated well to a finished product storage area by using a gantry crane, and manually maintaining for 7 d;

(5) cement-based capillary crystalline coating brush

In order to enhance the self-locking water performance of the dry and hard concrete well casing, the inside and the outside of the prefabricated well casing are coated with cement-based permeable crystalline waterproof coating, silicone ions dissolved out from the waterproof coating permeate and diffuse in the concrete along with surface water and chemically react with calcium ions in the concrete to generate water-insoluble dendritic calcium silicate hydrate crystals, and the crystals are filled in capillary pores and are combined with the concrete into a whole to block capillary pores in the concrete, so that the concrete is compact and water leakage is prevented. Moreover, the coating also has a catalytic property, once the coating meets water, chemical reaction can be continuously generated, generated crystals continuously grow and fill capillary pores in concrete, and therefore, even if a concrete structure is locally damaged and leaks, the coating can generate crystallization to automatically repair and heal (cracks of 0.4 mm) after meeting water;

(6) inspection well bottom plate and cover plate cast-in-place

Except for a well chamber and a shaft, the bottom plate and the cover plate of the sewage inspection well are produced in a prefabricating factory, and the production process flow is as follows: positioning and installing a forming template → painting a release agent → installing reinforcing steel bars → pouring concrete → painting cement-based permeable crystalline coating → embedding a hoisting piece → maintaining → disassembling a mold → delivering to the site, wherein the concrete is C30P6 impermeable concrete, the diameter of the bottom plate is 1.4m, a boss is arranged in the range of 1m in the center and is 4cm higher than the bottom plate, the bottom plate and a well chamber are combined in an inserting mode, and 1:2 waterproof cement mortar or polyurethane is mixed with the cement mortar for sealing, so that the integral impermeability of the structure is improved. The bottom plate and the well cover are maintained by manually watering, and the concrete can be transported to the site for use when the strength of the concrete reaches over 75 percent of the design strength;

(7) assembly of inspection well

The assembled prefabricated shafts are connected through Z-shaped interfaces, the well chamber is connected with the bottom plate through L-shaped interfaces, and the assembled prefabricated shafts are sealed through 1:2 waterproof cement mortar or polyurethane blended with cement mortar. During installation, mechanical hoisting is used as a main part, manual positioning is used as an auxiliary part, special attention is paid to vertical well chambers and locking between prefabricated parts, the axis of a reserved opening of a well chamber is matched with the axis of a pipeline, the pipeline is connected into the direction of the elevation according to a design drawing, and a pipe section with a reserved hole is flexibly arranged to be used for connection. The cover plate is installed and leveled, and the elevation of the cover plate of the inspection well positioned on the road needs to be lower than the elevation of the roadbed roof. The upper and lower tube joints are connected between wells, no matter the joints are Z-shaped or L-shaped, the seepage water flow direction analysis from the joints is carried out, the joints on the outer wall of the well are set to be lower than the joint elevation of the inner wall of the well, and under the action of assisting waterproof mortar, the permeation of underground water into the well through the joints is effectively blocked;

(8) pipeline access and preformed hole plugging

The inspection well and the pipeline are connected by adopting a pipe top butt joint, and the method comprises the following steps of 1:2 waterproof cement mortar or polyurethane is mixed with cement mortar caulking and is blocked, the specific method comprises the following steps: before the pipeline extends into the well chamber, waterproof mortar is placed in the lower part of the pipeline within 120 degrees, and the pipeline is extruded to enable the waterproof mortar to be tightly connected with the pipeline, preferably the mortar overflows. Filling the two sides and the upper part of the pipeline with waterproof mortar respectively, inserting and tamping the waterproof mortar until the waterproof mortar is completely full, and finally smearing triangular waterproof mortar with the width kept between 5 and 6 cm. Because the hole is great relatively to the pipeline pipe diameter in advance, so can satisfy the demand that arbitrary angle inserted the pipeline.

The prefabricated inspection well template has the following advantages in use:

the innovation is as follows: the designed multi-model prefabricated well template end mold solves the construction problem of how the prefabricated well meets the requirements of the on-site multi-height sewage inspection well, and redefines the problem of wide application of the prefabricated inspection well in the complex terrain;

the technical advancement is as follows: the well chamber and the shaft produced by the novel prefabricated well end mold can be perfectly applied to the construction process of the multi-level height inspection well, and meanwhile, the anti-permeability performance of the inspection well is greatly improved;

and (4) quality of security: the construction operation process can be improved on the premise of not changing the forming effect of the on-site inspection well, the construction quality can be ensured, and the overall quality and the appearance quality of a finished inspection well product can be ensured to the greatest extent;

the economic efficiency is as follows: the centralized prefabrication mode is adopted in advance to fully meet the requirements of on-site use, so that the working efficiency is improved, the construction progress is accelerated, unnecessary material waste is avoided, and the construction cost is greatly saved;

energy conservation and environmental protection: the produced prefabricated well does not need to independently customize a cast-in-place template for the inspection well which cannot meet the requirement of height, so that the consumption of materials is greatly reduced;

the popularization is as follows: the project is adopted to automatically establish a prefabrication plant for production and use, the process is simple and controllable, the investment fixed cost is low, the prefabrication plant is successfully applied to the construction of 9 provincial rural sewage treatment demonstration village projects (about 5600 sewage inspection wells) at present, good effects are achieved in the aspects of quality control, economic benefit, construction progress and the like, and the prefabrication plant has good application prospects in the construction of other similar non-pressure pipe network projects.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention, therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims (9)

1. The utility model provides a prefabricated inspection shaft template which characterized in that: the well chamber prefabricated steel die comprises a well chamber prefabricated steel die (1) and a well shaft prefabricated steel die (2), wherein the end parts of the well chamber prefabricated steel die (1) and the well shaft prefabricated steel die (2) are respectively provided with a first end die (3) and a second end die (4), and the end part of the well shaft formed by the second end die (4) and the end part of the well chamber formed by the first end die (3) form a matching tongue-and-groove.

2. A prefabricated manhole template according to claim 1, wherein: the well chamber prefabricated steel mould (1) comprises a first well chamber semicircular template (5) and a second well chamber semicircular template (6), wherein the butt joint of the first well chamber semicircular template (5) and the second well chamber semicircular template (6) is provided with a first flange plate (7), and the two first flange plates (7) at the butt joint are fixedly connected through a first bolt (8).

3. A prefabricated manhole template according to claim 2, wherein: and reinforcing rib plates I (9) are arranged in the circumferential direction and the longitudinal direction of the well chamber semicircular template I (5) and the well chamber semicircular template II (6).

4. A prefabricated manhole template according to claim 2, wherein: the flange plate I (7) is provided with a corresponding U-shaped notch I (10), one end of a bolt I (8) is hinged to the well chamber semicircular template II (6) through a pin I (11), and the other end of the bolt I is locked by a nut I (12) after being clamped into the two corresponding U-shaped notches I (10) in a rotating mode.

5. A prefabricated manhole template according to claim 1, wherein: the shaft prefabricated steel die (2) comprises a shaft semicircular template I (13) and a shaft semicircular template II (14), flange plates II (15) are arranged at the joint of the shaft semicircular template I (13) and the shaft semicircular template II (14), and the two flange plates II (15) at the joint are fixedly connected through bolts II (16).

6. The prefabricated manhole template of claim 5, wherein: and reinforcing rib plates II (17) are arranged on the shaft semicircular template I (13) and the shaft semicircular template II (14) in the circumferential direction and the longitudinal direction.

7. The prefabricated manhole template of claim 5, wherein: the flange plate II (15) is provided with a corresponding U-shaped notch II (18), one end of a bolt II (16) is hinged to the shaft semicircular template II (14) through a pin II (19), and the other end of the bolt II is locked by a nut II after being rotatably clamped into the two corresponding U-shaped notches II (18).

8. The prefabricated manhole template of claim 5, wherein: an inner partition plate (20) is arranged in the shaft prefabricated steel die (2), different shaft grooves and tongues are formed in two ends of the inner partition plate (20), a second limiting groove (21) is formed in the periphery of the inner partition plate (20), and the second limiting groove (21) is limited through a first shaft semicircular template (13) and an inner limiting strip (22) on a second shaft semicircular template (14) respectively.

9. A prefabricated manhole template according to claim 1, wherein: the first end die (3) and the second end die (4) are limited on the well chamber prefabricated steel die (1) and the shaft prefabricated steel die (2) through end limiting plates (23).

Images