Channelless laying of pipelines in polyurethane foam insulation with insulation of joints by pouring at a nominal pressure of 1.6 MPa, a temperature of 150C, a pipe diameter of 200 mm
LOCAL RESOURCE STATEMENT GESN 24-01-021-07
| Name | unit of measurement |
| Channelless laying of pipelines in polyurethane foam (PPU) insulation with joint insulation by pouring at a nominal pressure of 1.6 MPa, a temperature of 150 ° C, pipe diameter: 200 mm | 1 km pipeline |
| Scope of work | |
| 01. Welding pipes into links. 02. Lowering pipe links and parts into a trench. 03. Welding of pipe sections in a trench. 04. Installation and welding of fixed supports. 05. Isolation of joints by pouring polyurethane components. 06.Three flushing and hydraulic testing of pipelines. |
PRICE VALUES
The quotation contains only the direct costs of the work for the period 2000 (prices of Moscow and the Moscow region), which are calculated according to the standards 2009. To draw up an estimate, it is necessary to apply the conversion index to the prices of the current year to the cost of work.
You can go to the pricing page, which is calculated based on the 2014 revision standards with additions 1
GESN-2001 was used to determine the composition and consumption of materials, machines and labor costs
LABOR
| № | Name | Unit Change | Labor costs |
| 1 | Labor costs of construction workers Category 4.2 | man-hour | 1274,56 |
| 2 | Labor costs of machinists (for reference, included in the cost of EM) | man-hour | 140,28 |
| Total labor costs of workers | man-hour | 1274,56 | |
| Wages of workers = 1274.56 x 9.91 | Rub. | 12 630,89 | |
| Salary of machinists = 1753.12 (for calculating invoices and profits) | Rub. | 1 753,12 |
OPERATION OF MACHINES AND MECHANISMS
| № | Cipher | Name | Unit Change | Consumption | St-st unit Rub. | TotalRUB. |
| 1 | 021141 | Truck-mounted cranes when working on other types of construction 10 t | mash.-h | 0,35 | 111,99 | 39,20 |
| 2 | 040102 | Power plants mobile 4 kW | mash.-h | 16,5 | 27,11 | 447,32 |
| 3 | 040202 | Mobile welding units with a rated welding current of 250-400 A with a diesel engine | mash.-h | 273,28 | 14 | 3 825,92 |
| 4 | 050102 | Mobile compressors with internal combustion engine pressure up to 686 kPa (7 atm), capacity 5 m3/min | mash.-h | 17,4 | 100,01 | 1 740,17 |
| 5 | 150101 | Filling and pressing units up to 70 m3/h | mash.-h | 34,8 | 129,8 | 4 517,04 |
| 6 | 150701 | Pipelayers for pipes with a diameter of up to 400 mm with a load capacity of 6.3 t | mash.-h | 71,23 | 160,03 | 11 398,94 |
| 7 | 330301 | Electric grinding machines | mash.-h | 33 | 5,13 | 169,29 |
| 8 | 400001 | Cars onboard, carrying capacity up to 5 tons | mash.-h | 0,53 | 87,17 | 46,20 |
| Total | Rub. | 22 184,07 |
CONSUMPTION OF MATERIALS
| № | Cipher | Name | Unit Change | Consumption | St-st unit Rub. | TotalRUB. |
| 1 | 101-1513 | Electrodes with a diameter of 4 mm E42 | T | 0,074 | 10315 | 763,31 |
| 2 | 101-1735 | Self-tapping screws CM1-35 | T | 0,0036 | 35011 | 126,04 |
| 3 | 101-1873 | Galvanized sheet steel, sheet thickness 0.75 mm | T | 0,522 | 11144 | 5 817,17 |
| 4 | 101-2028 | Heat-shrinkable polyethylene tape 640 mm wide | m | 217,54 | 96,22 | 20 931,70 |
| 5 | 103-9055 | Steel pipes in polyurethane foam insulation | m | 1000 | 0,00 | |
| 6 | 104-9170 | Component retan two-component potting | kg | 179 | 0,00 | |
| 7 | 104-9233 | Locking plate made of polyethylene | PC. | 149 | 0,00 | |
| 8 | 201-9027 | Fixed supports | T | 0,33 | 0,00 | |
| 9 | 405-0254 | Lime construction quicklime chloride, brand A | T | 0,0095 | 2147 | 20,40 |
| 10 | 411-0001 | Water | m3 | 127 | 2,44 | 309,88 |
| Total | Rub. | 27 968,49 |
TOTAL RESOURCES: RUB 50,152.57
TOTAL PRICE: RUB 62,783.46
Look at the cost of this standard at current prices open the page
Compare the value of the price with the value of FER 24-01-021-07
To draw up an estimate, the price requires indexing the transition to current prices. The price is compiled according to the standards of GESN-2001 edition 2009 in prices 2000.To determine the intermediate and final values of the price, the DefSmeta program was used
Estimate for the construction of a house, for the repair and decoration of apartments - the program DefSmeta
Program rentalThe program provides an assistant who will turn the budgeting into a game.
Marking and types of products
The production of impassable channels is carried out according to standard designs. Product marking contains letters and numbers that indicate the types and sizes of channels. For example, a channel marked 2KJI 9060 is an impassable channel, two-cell, 60 centimeters high, 90 centimeters wide. Thus, the numeric value before the letter indicates the number of cells in the channel.The numbers that are placed after the letter value are the dimensions of the products in centimeters.
Channels impassable are classified by design, form:
Cylindrical;
Semi-cylindrical;
Rectangular.
According to the material of manufacture, the channels are:
brick;
Reinforced concrete;
Concrete block.
Of course, each type of impassable channels has its advantages and disadvantages. The dimensions and type of these products are selected and coordinated with the project documentation.
Purpose and application of impassable channels
Depending on the size, impassable channels are determined by different diameters of the heat pipes, the gap between the inner surface of the impassable channels and the thermal insulation surface of the heat pipe. They are also determined by the distance that exists between the pipe axles.
The main purpose of impassable channels is the use in heating networks. It is worth noting that these products can be used absolutely in any conditions and with any soil. Depending on the presence or absence of an air gap, which is between the channel walls and the heat-insulating surface, the channels can be used in various conditions. For example, channels without a gap are used if the pipeline is subject to thermal deformation only in the axial direction, in other sections of the heat pipeline it is necessary to use channels that are impassable with a gap.
Impassable channels, the price of which is presented on the website, play an important role in the laying of heat pipelines. Heat pipes that do not have an air gap between the channel walls and the surface of the heat-insulating material are used less frequently than similar heat pipes with a gap. This is because steel pipes are susceptible to corrosion due to high levels of humidity.
In the production of channels, only heavy grades of concrete are used, as well as high-quality, durable, flexible steel for reinforcement. When purchasing an impassable conduit, consider the size of the piping and the clearance that the air space that exists between the pipe and conduit provides.
The impassable channels are characterized by the following features:
Strength and stability;
Water permeability;
High level of frost resistance.
How to order products?
We offer to buy impassable channels at the best price in Moscow. You can specify the price of products during the ordering process by the specified phone number. You can agree with the company's employees on the preliminary order volume, deadlines and a suitable shipment date.
If you are at a loss with the choice of reinforced concrete products, our employees are always ready to help. They will be happy to answer all your questions, help you place an order, and give professional advice. You can also learn more about the range, cost, delivery and payment from our managers.
Collector structures of impassable channels of the NKL type are intended to protect communications that are laid in their trays. Typically, these trays are used for laying pipelines for various purposes (water, hot water, gas, etc.), wired telephone cables, cable television broadcasting, wired and fiber optic Internet networks, etc.
Non-passing channels consist of a set that includes only two components:
Lower tray - LN type element - lower tray;
Upper tray - an element of type LP - overlap tray.
The lower elements - type LN, are used for laying on the bottom of the ditch, after which communication elements (pipelines, cables, etc.) are laid in the trays of the impassable channel, which are covered with a covering element - type LP and covered with soil.
To improve reliability during operation and extend the service life of these products, they are recommended to be laid in a trench, after groundwater has been drained through the drainage trays of the drainage system to a level acceptable for stable long-term operation of these channels.
Another way to improve the quality of impassable channels is to treat the inner and outer surfaces of the channel trays with a special protective compound to improve tightness.
Trays of impassable channels are designed for operation in conditions of penetration up to 2.0 m from the top of the floor tray. Load from vehicles - according to the scheme of temporary load NG-90. These reinforced concrete products are made from heavy concrete of grade no worse than B22.5, having frost resistance of at least 200 cycles (F200) and water resistance of at least W-6.
Description
Heating mains are distinguished by:
- types of coolant
- steam
- water
- laying methods
- underground: without channels, in impassable channels, semi-through channels, through channels and in common collectors together with other engineering communications
- elevated: on low and high free-standing supports.
The total length of the heating pipeline due to heat losses is usually limited to 10-20 kilometers and does not exceed 40 kilometers. The limitation on the length is associated with an increase in the share of heat losses, the need to use improved thermal insulation, the need to use additional pumping stations and (or) stronger pipelines to ensure pressure drops at consumers, which leads to an increase in the cost of production and a decrease in the efficiency of the technical solution; Ultimately, this forces the consumer to use alternative heat supply schemes (local boilers, electric boilers, stoves). To improve maintainability with sectional fittings (for example, valves), the heating main is divided into sectioned sections. This allows you to reduce the emptying-filling time to 5-6 hours, even for pipelines of large diameter. Fixed (dead) supports are used to fix the mechanical, including reactive, movement of pipelines. Compensators are used to compensate for thermal deformation. Rotation angles can be used as compensators, including specially designed ones (U-shaped compensators). As compensators-elements, stuffing box, bellows, lens and other compensators are used. For the purposes of emptying and filling, heating pipelines are equipped with bypasses, drains, air vents and jumpers.
The boxes of the underground heating main are often blocked by walls in case of a coolant breakthrough.
One of the heating options: deep heating network - a tunnel with a diameter of 2.5 meters. Examples of those under construction in Moscow: under Bolshaya Dmitrovka Street there is a deep heating network, the shaft behind the Pushkinsky cinema is at a depth of 26 meters. On the Taganskaya area, the depth of occurrence is less - 7 meters.
Similar tunnels of heating networks are laid by a mining shield.
Channelless laying
Channelless laying is the laying of pipelines directly in the ground. For channelless laying, pipes and fittings are used in special insulation - polyurethane foam (PPU) thermal insulation in a polyethylene sheath, foam polymer-mineral insulation (sheathless).
Heat pipelines in industrial polyurethane foam insulation are equipped with an on-line remote control system (SODK) of the state of insulation, which makes it possible to timely track the ingress of moisture into the heat-insulating layer with the help of devices. Pipelines in polyurethane foam and polyethylene sheath are used for channelless laying; in polyurethane foam and a steel twisted sheath are used in channels, technical undergrounds, on overpasses.
In the factory, not only steel pipes are thermally waterproofed, but also shaped products: bends, diameter transitions, fixed supports, valves.
There are both channel and channelless pipe laying
With channel
The method of laying the heating mains in specially prepared trenches is considered more practical and tested. This is an all-encompassing method of arranging heating mains in soil of any kind. With this method you can:
- Use components made of tray reinforced concrete, also overlapping slabs in the form of channel-forming structures of the heating network pipeline;
- Apply thermal insulation (mineral wool, fiberglass, etc.) of a hinged type;
- Eliminate the contact of the pipe with the soil, which can cause destructive mechanical and electrical effects on the metal. chemical action;
- Free the pipe carrier from temporary transport capacities;
- Equip cameras on the network sections of the highway for the assembly of bends, stop-control and stabilizing equipment;
- Provide free contraction rebuilding of pipes during their strong heating (longitudinal and crossing);
- Reduce the price of laying pipes, because no expensive gland seals t expansion;
- Provide additional safety against hot water ingress if there are pipeline malfunctions;
The trench can have a monolithic configuration and be poured directly at the assembly site or mounted from separate prepared trays. Prepared channels are single engineering passages and distributors.
Channelless laying of heating mains
In this case, they fall asleep in a diluted sandy ditch with soil without the use of any enclosing structures. This method, when using the latest heat-insulating products, has many advantages.
As a result, with this calculation:
- Pre-insulated pipe routes are used;
- The price category of the assembly itself is lowered;
- There are no enclosing structures for the pipeline;
- Guaranteed typical use of the mains with a high degree of ground water;
- There is no typical state access to the pipeline for inspection and repair;
The algorithm for the device data of thermal networks is as follows:
- ditch digging;
- Adjusting its base and backfilling with soil;
- Laying out the pipes themselves;
- Falling asleep and tamping;
- Backfilling of gravel layer, then backfilling of concrete crossing for asphalting;
- Falling asleep or ennoblement of the area;
- Asphalting or landscaping;
II.GENERAL PROVISIONS
2.1. Technological
the map was developed for a complex of works on the installation of construction
structures of external heating networks.2.2. Installation work
building structures of external heating networks are carried out in one
shift, working hours during the shift
is:
2.3. In the scope of works
performed during the installation of building structures of external thermal
networks include:-
geodetic breakdown of the collector on the ground;-
development of soil in a trench by an excavator;-
the device of crushed stone and concrete preparations;-
installation of prefabricated structural elements;-
sealing of joints of elements;-
backfilling of the trench.2.4. For mounting
building structures of external heating networks as
main materials are used: edged lumber
coniferous species VI s.
50 mm thick, according to GOST 8486-66 *; construction nails
100x4.0 mm
according to GOST
4028-63 ; concrete mix cl. V 7.5, W6, F100
on
GOST 7473-2010; rubble
from
natural stone fraction 10-20 mm, M 400
meeting the requirements of GOST
8267-93.2.5. Technological
the card provides for the performance of work by a complex mechanized
link consisting of: bulldozer B170M1.03VR
(=4.28 m, h=1.31 m); excavator
ZX-200
(bucket volume g=1.25 m, digging depth H=5.9 m); vibrating plate TSS-VP90N
(weight P=90 kg, compaction depth h=150 mm up to K=0.95); mobile jib crane
KS-45717
(carrying capacity Q=25.0 t); mobile
gasoline power plant Honda ET12000
(3-phase
380/220 V, N=11 kW, m=150 kg); concrete mixer Al-Ko TOP 1402
GT
(weight m=48 kg, loading volume V=90 l);
dump trucks KAMAZ-6520
(carrying capacity
Q=20.0 t); concrete mixer truck CB-159A
(capacity
mixing drum for the output of the finished mixture V = 4.5 m); tub swivel BP
"Shoe"
(capacity V=1.0 m).
Fig.1. Excavator Hitachi ZX-200-3
Fig.2. Vibratory plate TSS-VP90T
Fig.3. Cargo characteristics of the automobile jib crane
KS-45717
Fig.4. Concrete mixer Al-Ko TOP 1402 GT
Fig.5. Honda ET12000 power plant
Fig.6. Bulldozer B170M1.03VR
Fig.7. Dump truck KAMAZ-6520
Fig.8. Concrete mixer truck SB-159A
Fig.9. Tub swivel
2.6. Installation work
building structures of external heating networks should be carried out,
guided by the requirements of the following regulatory documents:-
SP 48.13330.2011. "SNiP 12-01-2004
Organization of construction. Updated edition" ;-
SNiP 3.01.03-84. Geodetic
work in construction;-
Manual to SNiP 3.01.03-84.
Production of geodetic works in construction;-
SNiP 3.02.01-87. earthen
structures. Bases and foundations;-
Manual to SNiP 3.02.01-83 *.
Manual for the production of work when arranging foundations and
foundations;-
P2-2000 to SNiP 3.03.01-87.
Production of concrete works at the construction site;-
SNiP 41-02-2003. Thermal
networks;-
SNiP 3.05.03-85. Thermal
networks;-
STO NOSTROY 2.6.54-2011.
Monolithic concrete and reinforced concrete structures. Technical
production requirements, rules and methods of quality control;-
STO NOSTROY 2.16.65-2012.
Development of underground space. Manifolds for engineering
communications. Requirements for design, construction, control
quality and acceptance of work;
STO NOSTROY 2.33.14-2011.
Organization of construction production. General provisions;-
STO NOSTROY 2.33.51-2011.
Organization of construction production. Preparation and production
construction and installation works;-
SNiP 12-03-2001. Safety
labor in construction. Part 1. General requirements;-
SNiP 12-04-2002 . Safety
labor in construction. Part 2. Construction production;-
PB 10-573-03. Device rules
and safe operation of pipelines of steam and hot water;-
RD 11-02-2006 . Requirements to
the composition and procedure for maintaining executive documentation when
construction, reconstruction, overhaul of facilities
capital construction and requirements for acts
survey of works, structures, sections of networks
engineering and technical support;-
RD 11-05-2007 . Order of conduct
general and (or) special journal of work performance when
construction, reconstruction, overhaul of facilities
capital construction.
