Registrato: 09/07/19 08:57
|Directional drilling has been around as a concept and practice for many years , however it is only quite recently that it has developed into a sophisticated tunnelling system that integrates the cutting head with an electronic sonde or guidance transmitter. This promotes adaptability to different ground conditions by performing either dry face drilling or combining pressure water jets at the cutting head to form a spoil slurry which is pumped to the surface for removal and disposal. The technicality of this drilling method is now so advanced that it requires only a single operator to drive the machine. Intensive pre-drilling geological surveys identify the type of ground conditions through which the ducting will have to go and also identify the type of drilling head required to penetrate the sub strata. Armed with this information and with any reports regarding existing underground piping or ducting for any utility services the TBM ( Tunnel Boring machine) operator can set the drilling operation in motion once all the relevant data is fed into the computerised control panel of the drilling machine and the integrated electronic guidance system. The technology enables Directional drilling to follow a horizontal, vertical or curved path as the project requires, avoiding and circumventing all obstacles on the way.
Directional drilling contracts with rail network companies are guided by information from the client regarding safe depths at which to drill to allow for any ground shrinkage caused by the drilling and spoil removal. Where available, all technical information relevant to the directional drilling procedure, must be communicated to the drilling contractor to form part of his appraisal of the task and provide problem-solving solutions. The relevant information is supplied by the drilling project Client who could be such authorities as the waterways authorities, airports authorities, estuaries or harbour authorities, Railtrack Authorities, motorways authorities and private industry owners.
Each directional drilling project will have its own set of problems to overcome in terms of infrastructure and ground conditions and these have to be sorted well in advance of the project commencing so there are no unaccounted for hidden surprises in the course of the drill. The technological side of directional drilling becomes more complex as computerised electronic systems are introduced and integrated into the actual tunnel boring machines so that they can be programmed and automated. This effectively means that TBM operatives simply have to monitor the progress of the drill head from a control panel and only intervene when adjustments have to be made to the directional drill cutting heads or if the whole drilling process has to be stopped for whatever reason. There are different types of TBM’s depending on the ground conditions being encountered during the project and sometimes drilling or cutting heads have to be changed in the course of the project to cope with changes in soil,clay or rock conditions.
The weather we live in mainly determines our clothing. If we consider the weather in Kolkata it is generally hot and humid .Sweat and heat is the constant companion. It is also a metropolitan city so the usual hustle and bustle exists. Nobody has the time to sit back and relax and when it comes to clothing people prefer things that are comfortable and easy to wear without much complication. But when it comes to women, clothes they wear are very important since people often are too critical about the kind of clothes they wear. At this time and age when women are constantly running they require something simple to wear. Leggings are certainly a product that can be easily slipped into without much hassle. It can be teamed with both eastern and western clothes and can be slipped into both for a formal as well as casual occasion. Leggings are available in a myriad of colors, prints and materials and one will be spoilt for choice. The stores in the markets and malls and also the new age online market place both offers leggings.
But in a city like Kolkata where weather can be tough the material of the leggings becomes important. Cotton is most suited for the humid conditions of the city. But the product also needs to be tough and should be stretchable so that it can go through the regular wear and tear. So, cotton lycra leggings are most in demand. Lycra is a stretchy synthetic fiber. This fiber actually consists of cotton, synthetic fiber and silk. It is extremely resilient and strong. It is also resistant to washing powders, lotions and even sweat. It is widely used by the designers and manufacturers all across the globe. Kolkata is no different as there are many cotton lycra leggings manufacturers in Kolkata also.
Women leggings are the newest fashion trend and it has become an everyday wear for both the office goers and also the home makers of Kolkata. Cotton lycra leggings manufacturers in Kolkata prides themselves in having the most amazing collection and the customers are spoilt for choice. The manufacturers offer products according to the requirement and choice of the clients. It is provided in all kinds of size.
There are various reasons for preferring the cotton lycra leggings and those are as follows:
In the Kolkata weather it is clothing that is very comfortable to wear.
The material has the capacity to go through all the roughness.
It is easy to wear and one just needs to slip into it.
There is a big demand for this product and the manufacturers in the city are churning out the most elegant and all-purpose leggings for the customers.
About the Author: This contribution has been made by Soumya Banerjee who has written a number of articles on cotton lycra leggings manufacturers in Kolkata and pro.