Design of external engineering networks and communications, laying of external networks. Water supply and sewerage in a private house - design and installation External engineering networks construction and installation
Main competitive advantage company InzheStroy is a combination of the use of traditional - open-pit mining with a wide arsenal of closed methods.
LLC "InzheStroy" has accumulated vast experience in the open laying of all major types of networks: water conduits, fecal and storm sewers, heating networks. Thanks to the accumulated experience, our company often acts as a General Contractor for the construction engineering networks while doing most of the work on their own. This approach significantly reduces the cost of construction.
Attention! The minimum order amount is 1 million rubles
Construction of water conduits - engineering networks
LLC "InzheStroy" laid tens of kilometers for various purposes and diameters from main water conduits D1000 mm, to intra-quarter water networks and inputs to houses minimum diameters– D25 mm.
LLC "InzheStroy" has experience in the installation of almost all known types water pipes, including – ductile iron ( cast iron pipes), HDPE, steel pipes with cement-sand insulation, etc. All stages of work inherent in the construction of water pipelines, LLC "InzheStroy" performs exclusively on its own and using its own equipment. Starting with excavation, fixing trenches and pits, supply of materials, installation and welding of pipes, shaped products and hydrants, locking devices, installation of prefabricated chambers or wells and execution monolithic works, and ending with the washing and disinfection of the water supply, the development executive documentation and delivery to Technical Supervision, MosGorgeotrest and the Operating Organization.
Construction of a fecal sewer
The construction of sewers in general, and fecal sewers in particular, requires more experience and presents high requirements to the quality of work. When laying a sewer, a prerequisite is compliance with the design slope and straightness of the pipeline. The quality of construction is strictly controlled by technical supervision. Sewerage is checked both for clearance and for tightness. AT last years, the TV inspection of all types of pipes and the delivery of a “ribbon of joints” for HDPE pipes also became mandatory.
Modern sewer networks can be built from a wide range of materials: ductile iron, Korsis, Pragma (PVC), HDPE, fiberglass pipes, etc. At some of our facilities, the depth of fecal sewage laying reached 9 meters. It is clear that for work at such depths, trenches and pits were fastened and, if necessary, dewatering was used. As a rule, the final stage of the construction of a household household sewerage is a connection to an existing collector. LLC "InzheStroy" has accumulated extensive experience in the implementation of tie-ins to the existing network without the installation of expensive bypasses.
Storm sewer construction
Mounting storm sewer does not differ significantly from the laying of fecal sewage and it has such specific types of work as the construction of storm gratings and wells, landscaping, including asphalting and landscaping.
Our company is able to offer the customer very competitive prices for the construction of storm sewers, since it performs all the work on its own. Very often, a project for the construction of a storm drain includes the installation of storm treatment facilities. At least at ten sites, InzheStroy LLC was a contractor for the supply and installation of modern VOCs, including all technological piping, installation of pumps and automation, and subsequent adjustment and delivery of VOCs.
Construction of heating networks (installation of heating mains)
One of the areas of activity of the InzheStroy Company is construction of heating mains. We had to carry out projects in which all famous species thermal networks - channel and non-channel laying of thermal networks, installation on high supports, and even laying of thermal networks using horizontal directional drilling technology (using Casaflex flexible heat-insulated pipes and pipes made of cross-linked polyethylene).
Naturally, the construction of thermal chambers, the installation of shut-off and control equipment and structures was also carried out by our specialists, who have undergone appropriate training and certification.
Channel laying of heating mains- the most widespread method of construction of heating mains. On the initial stage construction of a heating main in this way, in a developed trench, a tray channel is mounted on a prepared base precast concrete – finished elements consisting of a bottom and side walls. In some projects, a monolithic channel is laid instead of a flume channel. In this case, after leveling the base of the trench, its bottom is reinforced and the base of the channel is poured with concrete, and then after a while the walls of the channel are poured.
The steel pipes of the heating network are mounted on sliding supports, which allow the steel pipe to expand and contract freely with temperature changes (with the exception of dead supports). To do this, support pads with sliding supports on them are installed at the bottom of the channel. To avoid heat loss, steel pipes are covered with heat-insulating materials. Previously, organosilicon paint KO or mineral wool was often used. Currently, polyurethane foam insulation (PPU) is mainly used. After the control of welded joints, hydropressure of the heating network and insulation of the joints, the installation of the heating main is completed by closing the channel with floor slabs. The channel is waterproofed and produced backfilling sand and soil. Last operation, which ends the installation of the heating main, landscaping.
The construction of heating mains on high supports above the ground is less and less used in recent times and is used for the temporary construction of heating mains (bypasses).
Installation of heating pipes is carried out on pre-built supports with installed on them sliding supports. The pipeline is thermally insulated mineral wool and a metal or other protective coating is installed over the insulation.
With the development of production polymer materials and polyurethane foam thermal insulation (PPU), a channelless method of building heating mains arose. Pipes with polyurethane foam insulation are produced at specialized enterprises and purchased from them construction organizations. This method of laying the heating network does not require the construction of channels. In the case of the construction of a heating main in a channelless way, a trench is developed, the bottom of which is leveled and covered with sand. Then comes the laying finished pipes heating systems in PPU insulation, and then the pipes are welded together (the ends of the pipes are left uninsulated at the factory). The quality of welded joints is controlled by radiographic method (joint clearance). The joints of the heating main after welding are sealed with heat-shrink sleeves, which are filled with foaming two-component composition. Then follows the backfilling of the pipes of the heating main with sand with a rammer. The construction of the heating main is completed with the improvement of the territory.
Currently, all heating mains are being built with the installation of an operational remote control(UEC) - insulation moisture control (leak detection) which allows you to determine and localize the presence of even the smallest amount of moisture inside the thermal insulation with an accuracy of 1% of the length of the section.
For channelless methods of construction of heating mains, such modern systems like Isoproflex, Casaflex, etc.
The construction of an external water supply in Moscow and the regions is:
- laying of pipelines of external water supply networks;
- installation of external networks of water supply and sewerage, fire water pipelines;
- reconstruction of the external water supply;
- dismantling of the external water supply;
- cavity cleaning and testing of water pipelines;
- installation of water wells, caps, catchment dampers;
- installation and dismantling of shut-off valves and equipment of water supply networks;
- hydraulic calculation of the external water supply.
We work according to ready-made projects of the customer or we ourselves design external water supply according to the norms of SNIP:
- cold water supply;
- hot water supply;
- water treatment and water treatment.
Design and installation of external water supply networks
The design and installation of external water supply networks depends on their type. So, in the process of designing and building a cold water supply pipeline, it is necessary to take into account the features of the object in order to avoid the occurrence of leaks, pressure drops, blockages, and corrosion during operation.
- If the project is developed by SMMS specialists, the WEP is coordinated with Vodokanal and Rostekhnadzor by our forces. After approval, we provide the customer with ready-made agreed documentation.
- During the production of works on laying and installation of external water supply, we follow the work plan and estimates for external water supply.
- We develop means of protection against negative external influence to avoid rupture of pipes. During the construction of water treatment systems, we install and adjust the operation of pumps, compressors, filters, water softening and disinfection devices.
- When installing hot water supply systems, we pay special attention to safety and reliability requirements, take into account high temperature loads, expansion of pipe materials, heat loss, condensate, abrasive friction, etc.
- For the installation of external water supply networks, we use only high-quality pipes for external water supply. We understand that the application high quality materials- a guarantee of the uninterrupted functioning of outdoor water supply networks.
- An important stage in the construction of external water supply networks is commissioning in accordance with the standards technical regulations. Our specialists carry out the assigned tasks with high quality.
Contact us for advice and calculation of the project of external water supply networks. The cost of external water supply consists of the amount of work required by the customer, the deadlines.
We provide quality guarantees and carry out maintenance of water pipes after installation. We value our reputation and are responsible for our actions.
The installation of external engineering networks makes up an average of 10-25% of the estimate of the entire construction. The construction of external networks includes the following systems:
- Water supply
- Household sewerage
- Storm sewerage (and its varieties: radiant drainage (soil drainage) and wall drainage)Heat supply
- Power supply
- Low current networks(Internet, telephony, etc.)
- Rarely, but there is still central cooling.
Laying of external networks consists of two main works - land works and direct laying of communications. And the cost of each of them is about 50% of the estimate. The volume of land works is measured in cubic meters.
trenches
Most common open method, in which the trench is arranged vertically using excavators and bulldozers, and manual cleaning of the foundations of the trenches. Labor costs, and, accordingly, the cost of earthworks depends on the width and depth of the trench. The width of the trench should allow free installation of pipes, incl. by welding. This requires enough space. It can be considered very roughly that from each side of the pipe to the trench wall there should be at least 30-25 cm (electrode length). Accordingly, for a pipe with a diameter of 200 mm, a minimum of 600 mm is required, in total 800 mm.
Foundation for pipelines
An analysis of the causes of accidents in external networks showed that the main cause of network depressurization is the deformation of soil cushions under pipes.
In other words, when laying pipelines, the foundation for them was not sufficiently reliable, and as a result, the deformation of the soil was transferred to the pipes. Sometimes local soil subsidence can cause not only the destruction of butt joints, but even pipelines.
To combat these phenomena, so-called "pillows" are provided, organized at the bottom of the trench. Generally speaking, the type of cushion is determined by the mobility and instability of soils. If the soil is diverse in its structure, heterogeneous in structure, has the ability to heave or soften when moisture enters, then a very reliable foundation is required for the safety of pipelines. Certainly, leading role water plays in the mobility of the soil, if there is an aquifer in the soil, then it can create a large headache for builders.
Almost all types of soils are the basis for the pipeline is sand. The traditional depth of the sand cushion is 15-30 cm, in addition, the pipelines fill the laid pipe to a depth of half a diameter with careful tamping. Careful tamping of the soil when backfilling the space between the pipe and the walls of the trench increases the resistance to crushing by 20%.
For soils with low bearing capacity use concrete or reinforced concrete bases.
Laying pipelines
For creating normal conditions the work of gravity systems (sewerage or drainage) when laying pipes creates slopes that ensure the flow of fluid at self-cleaning speeds. The flow velocity depends on the slope and radius of the pipes.
Laying of external networks engineering communications is a rather complex and time-consuming type of work and requires a responsible approach. SATORI Corporation offers a full range of services covering outdoor utilities and networks, and guarantees high level performance of all types of work. Our specialists are highly qualified, and having our own technical park allows us to carry out technological processes as efficiently as possible.
What is included in urban engineering networks and communications?
These include all systems for ensuring the normal functioning of residential buildings, industrial and office facilities. All communications can be divided into external and internal. The former include external lighting, hydraulic engineering and treatment facilities, sources of heat supply and electrification. Laying of external networks is carried out at the initial stage of construction. And the quality of the performance of these works depends on the normal utility supply of the facilities under construction.
Engineering communications are the basis modern construction, designed to create required level comfort for every owner of a cottage or apartment. The design and construction of engineering networks at the preliminary stage of construction plays a huge role. This stage of construction includes projects for heating, water supply, ventilation, power supply, gas supply and information communications.
When drawing up the project, the location in the vicinity of the construction of already existing engineering networks, such as high-voltage cable lines and city sewerage, should be taken into account. In case of errors in the project, during the operation of the facility, serious problems associated with cold rooms, leaking pipes, bad smell and non-working electrics.
Design, removal and laying of engineering communications from SATORI
Types of work on external networks performed by SATORI
Design
Construction of external engineering networks and communications (water supply, sewerage, heat supply, etc.)
Removal outside the building
Storm drain device
Construction of pumping stations
Laying of external networks
The laying of external engineering networks must be carried out in full compliance with existing standards and norms. This type The work is quite lengthy and labor intensive. It requires high professionalism and the availability of special equipment. If you want this stage of construction to be completed efficiently and promptly, entrust it to SATORI specialists. Our staff is highly qualified and has extensive experience in solving the most challenging tasks. We take full responsibility for the quality of work on the installation and connection of utilities, and also give a guarantee for the result. All services of the company's specialists have an acceptable cost. Installation of external engineering networks is carried out in strictly stipulated terms. We also take care of the paperwork and provide assistance in coordinating the project with the regulatory authorities.
Removal of communications
During the dismantling of facilities, if the cables and pipes will not be used during subsequent construction, a temporary type of engineering communications is installed or the networks are removed from the site. If the site is to be demolished, the utility systems may be retained, but they must be protected from the possibility of damage. SATORI specialists carried out the relocation of external networks and the removal of communications outside the site at more than a hundred demolition sites. The work was carried out in full compliance with the requirements of the standards.
WATER SUPPLY (B1)
Water pipeline - a system of continuous water supply to consumers, designed to carry water for drinking and technical purposes from one place (usually water intake facilities) to another - to a water user (city and factory premises) mainly through underground pipes or channels.
The first water supply systems are known from the 1st millennium BC. e., and are mentioned in the Bible (2 Kings, Is. VII, 3, II Chr. XXXII, 30). In ancient Rome, aqueducts were called aqueducts. The first water supply systems in Russia appeared in Bolgar. In the 11th or early 12th century, the first water supply from wooden pipes appeared at Yaroslav's Court in Novgorod.
The Moscow Kremlin has had running water since the 15th century. First City plumbing system in Moscow (Mytishchi-Moscow water pipeline) appeared in 1804.
Nowadays, due to increased mechanical strength and resistance to elevated temperatures in household and water supply, metal water pipes are most widely used - from steel, of stainless steel, cast iron, high-strength cast iron with nodular graphite (VChShG) and copper. Pipes are also used synthetic materials, for example, from polyethylene of various densities.
Main types of work:
Household plumbing for pumping water of drinking quality;
fire (or fire) plumbing to prevent fires;
production (or technological) - for pumping water technical purpose: sanitary purposes, various production targets;
construction of a water supply system: construction of external water supply networks, laying of water pipes;
laying of hot and cold water supply (water treatment);
excavation and trenching (compaction of the base for pipes and subsequent, after laying the pipes, backfilling of the trench with layer-by-layer compaction of the soil);
laying and installation of water pipelines HDPE, PVC (plastic pipelines), reinforced concrete, etc.;
installation of fire hydrants;
installation of gate valves, valves and fittings;
wiring of water supply systems during the installation of water supply;
flushing water supply;
device for inputs of external water supply;
supply necessary equipment;
repair of water supply systems (elimination of problems with existing networks and dismantling of emergency sections of the water supply system, replacement of water supply pipes);
commissioning after the completion of the construction of the water pipeline (all necessary switching on, off, connection and obtaining permits
for these works in the relevant authorities and services) and the commissioning of the facility;
warranty service of water supply systems and after installation of the water supply system
SEWER (K1), STORM SEWER (K2)
Sewerage - component water supply and sanitation systems designed to remove solid and liquid products of human life, household and rain Wastewater in order to clean them from pollution and further exploitation or return to the reservoir. Required item modern urban and Agriculture. Violation of its work can worsen the sanitary and epidemiological situation in the area.
The earliest structures that acted as sewers were found in the cities of the Indus civilization: in Mohenjo-Daro, which arose around 2600 BC. e. almost the first public toilets known to archaeologists, as well as the city sewerage system, were discovered.
Found also sewer facilities in ancient Babylon, the second oldest.
In ancient Rome, a grandiose sewage engineering project - the Great Cloaca - was created under the fifth king ancient rome Lucius Tarquinia Prisca.
The first municipal sewerage system was launched in Moscow in 1898 and consisted of 262 km of sewerage network, the Main Pumping Station, the Lublin Canal, and irrigation fields. This infrastructure served 219 households and processed 5.4 thousand m³ of wastewater per day.
In 1907-1912, as part of the second stage of the project for the complete sewerage of the city inside the Kamer-Kollezhsky shaft, a place was identified for new Lyubertsy irrigation fields near the Lyubertsy station with sewage supplied from the Main pumping station through the Zagorodny Lyubertsy Canal.
In May 1938, the Lublin irrigation fields were rebuilt into the Lublin aeration station with a design capacity of 300,000 m³/day; 1990s, instead of the Lyubertsy filtration fields, the Lyubertsy aeration station appeared.
Storm and industrial sewerage systems in Moscow have historically been separate. Currently, SUE Mosvodostok is engaged in sewerage of surface runoff, and MGUP Mosvodokanal is responsible for sewerage of urban faecal waters.
The sewer network is one of critical systems life support, an integral part of water supply and sanitation, designed to remove solid and liquid human waste products, household and rainwater, in order to clean them from pollution, and further exploitation or return to a reservoir.
The sanitary situation in the city largely depends on the reliability of the sewerage device and the tightness of the sewer network.
Our company has been laying sewer pipes for decades. During this time, technologies have changed, materials have changed. Our highly qualified specialists always keep abreast of progress, keeping up with the development of world technologies. Despite all the changes and innovations, the essence of such a process as laying sewers has remained the same: the system must be made functional, safe and economical.
Trust our experience and professionalism, and any type of sewerage will be laid by us with optimal speed and high quality.
Main types of work:
Installation of external networks of domestic and storm (rain) gravity sewers (construction of storm sewers);
laying of engineering networks of industrial gravity sewerage;
design of engineering networks (in accordance with SNIP);
arrangement of storm water and fecal storm wells and cameras;
installation of treatment facilities;
automated sewer pumping stations;
external networks of household and storm (rain) pressure (forced) sewerage;
engineering networks of industrial pressure (forced) sewerage;
installation of sanitary appliances and household equipment;
selection optimal composition equipment (pipes, valves, adapters, couplings, fittings) and its supply;
construction sewer wells and plums; sewer repair;
installation of plumbing and cleaning equipment, commissioning;
commissioning of the sewerage system;
security warranty repair sewer system;
HEATING NETWORK (T)
Laying heating networks is a complex, expensive and time-consuming technological process, which must meet all the stringent requirements that apply to such systems. The laying of heating networks requires a large amount of responsible preliminary and preparatory work, including soil analysis and careful planning of laying methods, taking into account the scheme of other engineering networks and communications that are around the construction. It is absolutely unthinkable to imagine the existence of a modern city, economy and industry without a heating mains system.
Heating network, This a complex system pipelines, which serves to distribute hot water or a couple. Heating networks, these most complex technical structures, consist of many connected by welding steel pipes, thermal insulation, building structures, a variety of drainage and air vent systems. Heating networks are usually divided into main ones, which are laid in the main directions settlements, as well as distribution - within settlements, quarters, microdistricts, individual buildings or industrial complexes.
The laying of heating networks, as a rule, has two main methods - one of them is a system of traditional steel pipelines passing inside reinforced concrete channels, and the second is channelless laying of pipelines in polyurethane foam (PPU) insulation directly into the ground.
The greatest distribution with new construction and repair in modern In Russia, they received pipes with industrial polyurethane foam (PPU) insulation. These pipes have been produced and successfully operated for more than 10 years. Robust design pipes leads to a large initial cost of heating networks, but at the expense of High Quality pipelines costs for their Maintenance decrease several times. The cost of such heat networks, reduced to one year of operation, is reduced by an average of 30%, compared with a heat network made traditional method.
The main types of PPU pipe laying include aboveground, underground channelless and channel methods. Depending on the laying method, pipelines are installed in a polyethylene protective sheath or in a galvanized steel sheath and apply various materials for sealing the joints of the pipeline being laid.