Intake part (the sump) is the lower part of the trunk, which collects and accumulates water. Depending on the required amount of the per day intake perform different depths (height). This part of the frame constructed of the most durable material, capable to serve the maximum number of years. It is designed to collect the required amount of water at the small of her arrival. In this regard, well be sure to bury at the desired depth below the aquifer. You can increase the lower part of the frame, having a sump in the form of a tent.
Soils
Arranging a coal mine well, take into account the characteristics of the soil. The most dangerous of them — the so-called quicksand, this is a very soft muddy or moist sandy layers, grain size of 0.10 — 0.15 mm, soaked with water. The presence of it and the soil determine the degree of its deliquescence (from small to large).
Granular soils — loose, the particles in them are poorly linked to each other, these include sand, gravel, crushed stone, gravel. These soils are easily developed, but also easily crumble. So they are in the process of digging is often necessary to reinforce the walls with wooden struts.
Soft soil is mostly earthy breed, they are muddy and sandy loam. The particles of such soils are bound together not very tightly. Typically, such layers are referred to as plastic. They are easy, but because of the shedding of the soil also require the device walls.
Some soils are porous they are quite weak. These include gypsum, clayey slates, etc. are Developed in these soils is also easy, but crumble slightly. This reduces the complexity of the digging of the mine,
There are soils that are medium-hard rocks. For example, dense limestone, shale, Sandstone, calcareous spar. To work with them harder. than with the weak. Finally, a strong pound, whose rocks have a high hardness. These include slab limestone, quartz rocks, feldspar, etc. to Work them hard, but they fall less and less.
When developing amenable to manual a pile of rocks use crowbars, picks, scalpels, and other durable tools. Easy pound choose a normal shovel, and lift buckets, tubs, fortified PA blocks. Of course, the operation can be mechanized and that, of course, greatly simplifies the execution of works.
Probes:
a — with hole b — with teeth
Sumif — the lower part of the frame
Each soil during operation requires special attention and compliance with safety regulations. Not enough to account for its properties and accordingly dig. Otherwise, people who build a well with their hands may get injured or, worst of all, to be filled up.
Sometimes there are incorrect advice on the construction of the wells. In particular, I propose to lay shallowly in a well first dug a trench about 4 — 6 meters, then assemble the frame and slowly lower it into the depths of the aquifer, choosing in the course of lowering the ground and putting the bottom row of beans. This technique is the most difficult, but, oddly enough, it is recommended as the easiest, that is completely wrong. The easiest, fastest and least time consuming method of device structure is to build a log cabin in open pit, starting from the bottom, and climb up. Take out of the mine soil must be taken away, in order to avoid collapse of its walls,
To represent the composition of the soil and properties of soil, which will meet during the digging of the well, you need to get the data on it. For this purpose, use a feeler gauge. This cone-shaped steel rod are made of flat steel thickness 15 — 20 mm with holes diameter 20 — 25 mm, drilled every 100 mm with teeth on both sides. Teeth usually upturned, sometimes in the teeth there are holes in his kind of spoon with which they engage the ground. Probe length 2 — 3 meters. The ear probe is inserted into the gate or just a pipe, by which it is rotated. Pull out the dipstick you need with a small rotation, which provides a more easy release of it from the ground. The composition of the soil can be determined by drilling, but it is necessary to have the appropriate equipment.
The characteristics of the aquifer
A device well starting first and foremost with finding the water source under the ground and workpiece materials and tools. If there are wells or leak the keys, the depth of the water determine very simple. But if wells and spring water near there, you must look for its sources.
Signs of shallow water are the following. 1. Places with a green and thick grass on a gently sloping, shallow gullies during a drought in June August. 2. Fog of different density, appearing in the evening above the earth’s surface in places where there are rivers, lakes, marshes, ponds where the mist is dense, water is there. 3. The level of streams, rivers, lakes, where available. 4. Moisture-loving plants (rushes, sedges) that occur on a normal vegetation cover. 5. Places where the air of mosquitoes or midges in the summer after sunset. 6. The place of education in the winter glades and ice in the snow cover. 7. Places with bright green vegetation in the valleys, when in other places the ground cover is already faded. Also, the water can be shallow in river floodplains, valleys, in areas with landslides.
LIVANOV