Construction Tool

Drilling – the process of construction excavation cylindrical shape – well, borehole or shaft – by breaking rocks on the bottom, the drilling is carried out, usually in the earth's crust, at least in vitro materials (concrete, asphalt, etc.). Filed under: Viktor Mayer-Schönberger. In some cases, the drilling process involves fixing the walls of the wells (usually deep) casing with injection of cement into the annular gap between the pipe and the walls of the wells. Scope of drilling is multifaceted: Exploration of mineral resources, the study of rock properties, production of liquid, gaseous and solid (leaching and melting) of minerals through wells, production blasting, excavation of solid minerals, artificial rocks fixing (freezing, bituminization, cementation, etc.), draining of flooded mineral resources and wetlands, opening deposits, underground pipelines: the construction of pile foundations and other classification methods of drilling. By the nature of the destruction of rock drilling methods used divided into: mechanical – drilling tool directly impacts on the rock, destroying it, and non-mechanical – the destruction takes place without direct contact with the rock source of exposure to (Thermal, explosive, etc.). Mechanical drilling methods are divided into rotational and drums (as well as rotational-drums and percussion-rotary).

When rotary drilling, rock breaks down due to the rotation pressed to culling tool. Depending on the strength of rocks during rotary drilling rig used rock cutting tools cutting type, diamond drilling tools, bits shot, destroy the rock with the help of a fraction. Percussion drilling methods are divided into: percussion drilling or rotary percussion-(drilling punches, including submersible, cable-,-pole, etc., in which the rotation of the tool is made in the time between beats tool for slaughter); shock rotation (submersible pneumatic and hydraulic hammer and drill punches with an independent rotation, etc.), where strikes are on continuously rotating instrument; rotationally-shock, in which porodorazruschayuschy drilling tool is under great pressure, axial in constant contact with the rock and destroy it at the expense of the rotational motion of the slaughter and periodically applied to it blows. Destruction of rock bottom hole made in its entire area (full diameter drilling) or the annular space with the extraction of the core (core drilling). Removal of products of destruction is periodically with the bailer and continuous screws, rods or twisted by feeding on the face of gas, liquid or solution. Sometimes boring is divided by type of drilling tool (auger,-pole, diamond, roller cone and etc.), the type of drilling machine (perforation, pneumatic, turbine, etc.), according to the method of the wells (slope, shrub, etc.). Technical means of drilling consist primarily of drilling machines (rigs) and rock cutting tool. Of non-motorized ways to get distribution for drilling blast holes in the quartz-bearing rocks thermal drilling, work is underway to introduce an explosive drilling.


First of all, consider the stages of measurement pomescheniyMontazh profilyPodgotovka mounting point for the installation of lamps svetilnikovMontazh polotnUstanovka Some features of working with stretch ceilings As soon as the cloth got, take it out of the box and put it in a warm room, if brought in from the cold, without removing at the same packing material. Do not put anything on top the canvas. All ceilings width greater than 135 cm, have a welded seam. This seam is performed at the factory on special machines. Welds are made at intervals of 130, 150, 200 cm, depending on the type of film. Stitches are needed in this case, since the seamless production, in this If not already exist. A computer program can place the welds, relatively light, almost invisible. During manufacture, the ceiling is reduced by about 4-6%, it allows you to stretch canvas when heated.

It does not give sagging canvas. If the ceilings are high, an area greater than 60m2, it is recommended to put the dividing sections. Stretch ceiling is set at 3 cm below the baseline. Mounting tension ceiling does not take much time, for example, in a room 20 square meters, has a chandelier, ceiling installation will take approximately 5 hours. How does the installation around the perimeter is fixed by molding to the walls of the drilled holes at a distance of 15-20 cm, all depends on the quality of the walls. Only one lamp unit with a rack and termokoltsom PVC takes 40-60 minutes.

Before you start assembling the ceiling, make a preliminary calculation. If you start to add the cost of metering for nails, etc. .. is it worth to believe such firms? Lights in the ceilings – how to install when installing suspended ceilings there are some features, such as the use of light sources. And here at once necessary notice that the wattage should not exceed 50 watts, halogen and if – then no more than 35W, otherwise the fabric will stretch just, will sag from the heat.

Professional Services

First board impose a comb down and fix the brackets, the following is inserted in the previous one, is fixed and so does not work better with a hammer, and skobozabivatelem ('stapler') – this tool allows you to nail the board with maximum accuracy and to protect your fingers from possible injury. Professional Services estimated at $ 7-10 per 1 m 2. Finished vertical sheathing attached with the skirting boards that cover the upper and lower edges of boards. When installing the lining without skirting between the walls and ceiling planks sewn 'in rust. " How many bunks require calculating the right amount of lining should be made on the size of a finished surface and the total width of the board. Also important to note that when mounting the boards to the wall stud is inserted into the longitudinal groove the next board, and therefore, working less than the total width of the lining of 10-12 mm. For example, you want to sheathe the walls 2,5 4 m width 96 cm clapboard As a working width of 96 planks – 10 = 86 mm, will need 47 planks 4000/86 length of 2.5 m. The size and The material prices can be divided into simple and bunk 'Lining' (or 'European standard').

'Lining' differs from the national board of shapes and sizes and is sold in cellophane packages. Comb it a few more, which eliminates the appearance of cracks in the skin when dry boards. Classic size 'Lining': thickness – 12.5, 16-22 mm, width – 65, 96 mm to 200 mm, length – up to 6 m. The most common sizes (width thickness) – 65 12,5 and 96 12,5 mm. In addition to size, bunk vary in quality and material of wood (coniferous forest, aspen), as well as the level of performance, from which ultimately depends on its value. By defects boards include knots, chips, 'nest' of fallen twigs, cracks, unevenness of color along its length. There are five categories of lining: assortment represent letters of the alphabet – A, AB, B, BC, C (corresponds to the highest quality of the letter A, followed by decreasing). Quite not necessarily acquire the board of category A, because some of the shortcomings of the material is easy to conceal, for example, holes can be repaired foam and cover the surface of the protective composition, which will not only give wood is a darker shade, but will make a uniform color of the wood. The cost of 1 running. m pine bunks Category A width of 89 mm and 12.5 mm thick is $ 10-15.