Introduction
Introduction
The standard lists the types of hatches, strength loads that hatches must withstand and installation sites that are identical to the European standard: hatch L - class A15; hatch C - class B125, etc. This relationship is reflected in the symbol of hatches and storm water inlets: hatch L (A15); rainwater inlet DM1 (S250). The dimensions of the grating grooves of the storm water inlet and their location in relation to the curb stone are harmonized with the EN 124-1994 standard. The following people took part in the development: M.Yu. Smirnov, S.V. A.Glukharev and V.P.Bovbel (Gosstroy of Russia), L.S.Vasilyeva (GP CNS), Yu.M.Sosner.
2 Normative references
GOST 380-94 * Carbon steel of ordinary quality. Grades ________________ GOST 380-2005 GOST 1412-85 Cast iron with lamellar graphite for castings. Grades GOST 14192-96 Marking of goodsGOST 15150-69 Machinery, instruments and other technical products. Versions for different climatic regions. Categories, conditions of operation, storage and transportation in terms of the impact of climatic factors of the environmentGOST 26358-84 Cast iron. General specifications GOST 26645-85 * Castings from metals and alloys. Dimensional tolerances, weights and machining allowances________________* The document is not valid on the territory of the Russian Federation. GOST R 53464-2009 is valid, hereinafter in the text. — Database manufacturer's note.
4 Types, basic parameters and dimensions
4.1 Types, basic parameters and dimensions of hatches, their installation location are indicated in Table 1 and in Appendix A. The hatch type is selected depending on the installation location. Table 1
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Type (designation according to EN 124) |
Name |
Full opening, not less than, mm |
Installation depth of the cover in the housing, not less than, mm |
Weight total, reference, kg |
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LM*(A15) |
Lightweight sunroof |
Green space, pedestrian zone |
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L(A15) |
Light hatch |
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C(B125) |
middle hatch |
Parking lots, sidewalks and roadways in city parks |
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T(S250) |
heavy hatch |
City highways with heavy traffic |
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TM(D400) |
Heavy main hatch |
Trunk roads |
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ST(E600) |
Super heavy hatch |
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Repair insert |
Hatch bodies of types С(В125) and Т(С250) during repair work on roads (when increasing the height of the roadway) |
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* For underground utilities with a channel depth of up to 600 mm from the outer surface of the manhole cover. |
4.2 By execution, hatches are subdivided:
1 - general purpose (Appendix A, Figure A.1);
2 - with a locking device on them (Appendix A, Figure A.2). The design of the locking device is agreed with the consumer;
3 - having a recess in the cover structure for filling with concrete of a class not lower than B30 (Appendix A, Figure A.3);
4 - with a device for lifting the cover using a standard lifting mechanism. The design of the device must be agreed with the consumer;
5 - with reinforced sealing of the hull with anchor bolts or special lugs on the hull (Appendix A, Figure A.4). The design of anchors, tides and their number (at least two) is agreed with the consumer;
6 - with a cover consisting of two parts (Appendix A, Figure A.5);
7 - with a cover hinged to the body;
8 - with a square or rectangular shape of the hatch cover and (or) body.
4.3 Types, main parameters and dimensions of storm water inlets, their installation location are indicated in Table 2 and in Appendix B. The type of grate is selected depending on the installation location. Table 2
|
Type (designation according to EN 124) |
Name |
Clear area, not less than, m |
Lattice installation depth in the housing, not less than, mm |
Weight total, reference, kg |
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|
Rain collector small |
Pedestrian zone |
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|
Large storm water inlet |
Parking lots and roadways of city roads |
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DB2**(W125) |
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Main storm water inlet |
High traffic highways |
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DM2(S250) |
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Heavy duty storm water inlet |
High load areas (airfields, docks) |
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DS2(D400) |
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On roads (aerodromes) with longitudinal slopes: * DB1 - 0.005; ** DB2 - 0.005. |
4.4 According to the design, storm water inlets are divided into:
1 - with a minimum width of the supporting part of the body along the contour (Appendix B, Figure B.1);
2 - with a minimum width of the longitudinal support part of the body adjacent to the road curb (Appendix B, Figure B.2); 3, 4, 5 - with a minimum width of the longitudinal support part of the body adjacent to the road curb, and one right (version 2) or left (version 3), or both (version 4) short sides; 6, 7 - with a minimum width of the short supporting part of the body adjacent to the road curb (version 5), or both short sides (version 6);
8 - with a single housing for two gratings (Appendix B, Figure B.3);
9 - with reinforced sealing of the hull, for which the latter is equipped with anchor bolts or special lugs on the hull (Appendix A, Figure A.4). The design of anchors, tides and their number (at least two) are agreed with the consumer;
10 - with a lattice hinged to the body.
4.5 The symbol of a hatch or a storm water inlet should consist of the word "Hatch" or "A storm water inlet", its type, design or several versions, the overall dimensions of the manhole in centimeters and the designation of this standard. In addition, the designation of engineering networks for which the hatch is intended : B - plumbing; G - fire hydrant; K - household and industrial sewerage; D - rainwater drainage, TS - heating network, GS - gas network, GKS - city cable network (including GTS - as agreed with the customer).Examples of symbols:light hatch for the water supply network with a square cover and a manhole size of 60x60 cm
Luke L(A15)-V. 8-60x60
GOST 3634-99;
middle manhole for sewerage with a locking locking device and a manhole diameter of 60 cm
Luke C(B125)-K.2-60
GOST 3634-99;
repair insert for a heavy hatch of any design and names of engineering networks with a manhole diameter of 60 cm
Repair insert R.T-60
GOST 3634-99;
large storm water inlet 2 with a minimum width of the longitudinal supporting part of the body adjacent to the road curb, with a hole size of 30x50 cm for roads with a longitudinal slope of 0.005
Storm water inlet DB1(V125)-2-30x50
GOST 3634-99.
3 Definitions
For the purposes of this International Standard, the following terms apply with their respective definitions.manhole
— construction in the form of a chamber or shaft for access to channels with underground utilitiesStormwater (rainfall) well
- a chamber or shaft for accepting surface sewage and atmospheric precipitation into a storm sewer systemmanhole hatch
- the upper part of the manhole cover, mounted on the supporting part of the chamber or shaft and consisting of a body and a coverStorm water inlet
- the upper part of the overlap of the storm well, consisting of a body and a grate Air vent
- an opening in the manhole cover of a manhole, designed to ventilate a chamber, mine or underground channelsFull hatch opening
- the diameter of the circle, which can be inscribed in the opening of the hatch body or storm water inlet
