CN202416377U

CN202416377U - Structure for reinforcing well cover and bases of inspection well

Info

Publication number: CN202416377U
Application number: CN2012200535898U
Authority: CN
Inventors: 闫雷柱; 张�荣; 李建设; 刘建华
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-02-20
Filing date: 2012-02-20
Publication date: 2012-09-05
Anticipated expiration: 2022-02-20

Abstract

The utility model relates to a structure for reinforcing a well cover and bases of an inspection well, belongs to the fields of urban road engineering and pipeline engineering, and in particular relates to a structure for reinforcing an inspection well mouth to prevent a peripheral round surface from being damaged. The structure mainly comprises the well cover, the bases, ring beams, bolts, adjusting nuts, fixing nuts and steel bar cages, wherein the ring beams and inspection well bores are poured together through concrete, so that high strength is achieved; and the bases are fixed on the ring beams through the bolts, so that the phenomenon that the road surface is pushed because displacement is generated under the action of horizontal thrust generated when the road surface is rolled by a vehicle is avoided, the peripheral round surface of the inspection well mouth can be effectively prevented from being damaged, driving comfort and safety are ensured, and the maintenance cost of the road surface and the inspection well is reduced.

Description

A kind of structure of reinforcing manhole well lid pedestal

Technical field

The utility model relates to a kind of structure of reinforcing manhole well lid pedestal, belongs to urban road engineering and pipe engineering field, particularly reinforces the structure that the inspection well head prevents road surface damage on every side.

Background technology

Be laid with various underground utilities under the urban road; Pipeline needs certain safe spacing underground burying underground; The width that all is embedded in sidewalk under the sidewalk can not meet the demands, therefore, and " Code for comprehensive planning of urban engineering pipeline " GB289-98 regulation; " planned position of utilities pipeline below road should be arranged in below sidewalk or the nonmotorized vehicle lane.Utilities pipelines such as communication cable, feedwater water delivery, combustion gas gas transmission, dirty rain-water drainage can be arranged in below nonmotorized vehicle lane or the motorway ".Therefore, when carrying out the urban road design, generally storm sewer and sewage conduct are arranged under nonmotorized vehicle lane or the motorway, various pipelines need be provided with manhole at a certain distance, so that maintenance.The manhole of existing national water supply and drainage standard collective drawings " 06MS201 municipal drainage pipeline engineering and ancillary facility "; The pedestal of manhole well lid is to adopt cement mortar seat slurry to be placed on the brick inspection pit shaft; Surfacing around the pedestal; Well lid covers on pedestal, and manhole cover is concordant with the road surface.The manhole cover that is arranged in motorway constantly receives rolling of vehicle; Well lid and pedestal generally are to adopt nodular cast iron to make, and intensity is higher, and the intensity of the mortar of seat slurry and brick pit shaft reduces; Long and of a specified duration huge impact power can make mortar broken; Brick pit shaft impact wear, the road surface is pushed in the well lid displacement, and broken phenomenon appears in the road surface around the manhole." Code for design of outdoor sewerage engineering " GB50014-2006 (local revised edition in 2011) regulation, " the well lid pedestal that is arranged on manhole on the major trunk roads should separate with the well body ", its purpose prevents that exactly manhole from receiving vehicle and rolling well lid sinking and road surface damage.The manhole well lid sinks and road surface damage on every side all can influence the comfortable and traffic safety of driving, and this is one of ubiquitous disease of urban road.

Summary of the invention

The purpose of the utility model provides a kind of structure of reinforcing manhole well lid pedestal; Adopt reinforced concrete circle beam that manhole well lid pedestal is reinforced; Collar tie beam is cast in the inspection pit shaft, and higher intensity is arranged, and has overcome prior art and has adopted the low defective of mortar seat slurry intensity.Pedestal adopts and to be bolted on the collar tie beam, under the horizontal thrust effect that vehicle rolls, can not produce displacement and push the road surface, has solved prior art and has occurred manhole cover easily and sink and the problem of pavement breaking on every side.Beneficial effect is: can prevent to check the well head damage on road surface on every side effectively, guarantee that driving is comfortable and safe, reduce the maintenance cost of road surface and manhole.

The utility model is realized through following technology: a kind of structure of reinforcing manhole well lid pedestal; Mainly comprise well lid 1, pedestal 2, collar tie beam 3, bolt 4, adjusting nut 5, hold-down nut 6, reinforcing cage 7, it is characterized in that: described pedestal 2 adopts bolt 4, adjusting nut 5, hold-down nut 6 to be fixed on the collar tie beam 3.Collar tie beam 3 is an annular, adopts concreting, and the bottom of bolt 4 is stretched in the collar tie beam 3, lays reinforcing cage 7 in the collar tie beam 3, and bolt 4 welds together with reinforcing cage 7, and the high and low position of pedestal 2 on collar tie beam 3 can be through adjusting nut 5 and hold-down nut 6 adjustment.Collar tie beam 3 is to adopt concrete cast-in-situ on pit shaft, and both combine firmly, under the impact of vehicle, be difficult for causing the road surface damage.

Description of drawings

Fig. 1 is the utility model organigram;

Fig. 2 is inspection well head fragmentary detail view.

Among the figure: 1-well lid, 2-pedestal, 3-collar tie beam, 4-bolt, 5-adjusting nut, 6-hold-down nut, 7-reinforcing cage, 8-pit shaft, 9-road bottom, 10-roadbase, 11-surface course.

The specific embodiment

Fig. 1 is seen in the enforcement of the utility model; The manhole of existing national water supply and drainage standard collective drawings " 06MS201 municipal drainage pipeline engineering and ancillary facility "; No matter the manhole lower dimension is much; Well lid all is φ 700mm, all is internal diameter φ 700mm near the pit shaft of road surface part, and pit shaft adopts 240mm brick.To control the absolute altitude of building by laying bricks or stones of pit shaft 8 during construction well, build the height that surface course 11 design elevations deduct pedestal 2 by laying bricks or stones, stop when deducting 200mm again building by laying bricks or stones at pit shaft 8.

Reinforcing cage 7 is made up of ring-type muscle and radial stirrup, and the ring-type muscle adopts φ 12 reinforcing bars, and radial stirrup adopts φ 8 reinforcing bars, and radial stirrup is near a side spacing 100mm of pit shaft 8, reinforcing cage 7 topping 30mm.Bolt 4 adopts φ 14 reinforcement fabrications, long 230mm, and top 50mm scope mantle fiber, bolt 4 quantity are four, are the radial stirrup welding of cross symmetry and reinforcing cage 7.The nut of adjusting nut 5 and hold-down nut 6 employing M14.

The reinforcing cage of making 7 is placed on the pit shaft 8 that puzzles, inside and outside the collar tie beam that will build 3, installs template, template can adopt steel plate to make, and interior mode diameter is the diameter of pit shaft 8, i.e. 700mm, and outer mode diameter is that interior mode diameter adds 480mm, i.e. 1180mm.Earlier adjusting nut 5 is screwed on the bolt 4; Again the installing hole of pedestal 2 is aimed at bolt 4, pedestal 2 is bearing on the adjusting nut 5, and adjustment adjusting nut 5 coincide the end face of pedestal 2 and the design elevation of surface course 11; With hold-down nut 6 with pedestal 2 fix tightlies; Adopt C30 concreting collar tie beam 3, collar tie beam 3 high 200mm, detail structure is seen Fig. 2.Treat that concrete can builder's road bottom 9, roadbase 10 and surface course 11 after arriving intensity.

Claims

1. structure of reinforcing manhole well lid pedestal; Mainly comprise well lid (1), pedestal (2), collar tie beam (3), bolt (4), adjusting nut (5), hold-down nut (6), reinforcing cage (7), it is characterized in that: described pedestal (2) adopts bolt (4), adjusting nut (5), hold-down nut (6) to be fixed on the collar tie beam (3).

2. a kind of structure of reinforcing manhole well lid pedestal according to claim 1 is characterized in that: described collar tie beam (3) is an annular, adopts concrete cast-in-situ.

3. a kind of structure of reinforcing manhole well lid pedestal according to claim 1 is characterized in that: the bottom of described bolt (4) is stretched in the collar tie beam (3).

4. a kind of structure of reinforcing manhole well lid pedestal according to claim 1 is characterized in that: lay reinforcing cage (7) in the described collar tie beam (3), bolt (4) welds together with reinforcing cage (7).

5. a kind of structure of reinforcing manhole well lid pedestal according to claim 1 is characterized in that: the high and low position of described pedestal (2) on collar tie beam (3), can pass through the adjustment of adjusting nut (5) and hold-down nut (6).