(1) In terms of infrastructure, in order to develop the same depth, the inclined shaft is much longer than the shaft, but when the inclined shaft is developed, the general inclination angle is smaller than the final movement angle of the ore body, so the length of the stone door of the inclined shaft is much shorter. Especially when the ore body is gently inclined, the above two points are more prominent. The bottom hole yard developed by the inclined shaft is simpler than the one developed by the shaft (the amount of engineering is small and the auxiliary facilities are small).
(2) In terms of lifting, the shaft has a fast lifting speed, a large lifting capacity and a low lifting cost. Inclined wells do not have this advantage, and at the same time increase the wear of the steel rope.
(3) In terms of ground pressure and engineering support, the ground pressure to which the inclined shaft is subjected is large, especially in the case where the rock is not stable enough, the service life is long, or the mine is deep, and the shaft is often used for ground pressure problems. The vertical shaft section is usually round. In terms of roadway management and ground pressure management, the shaft has greater advantages.
(4) In terms of construction, the shaft is easier to mechanize than the inclined shaft, but there are many construction equipment and auxiliary equipment, the working conditions are poor, and the technical requirements are relatively high. Inclined shaft construction is relatively simple, requiring less equipment and equipment. Generally speaking, the inclined shaft is faster than the shaft.
(5) From the perspective of wellbore equipment, the inclined well is simpler and the cost is lower.
(6) In terms of safety, there are fewer accidents in the shaft lifting process, and there are more accidents in the inclined shaft. For example, the mine car is easy to cause a sports accident due to derailment and decoupling. Although the inclined shaft has a safe humanity, once a sports car is hit, accidents such as collisions are often inevitable.
Due to the shortcomings of the inclined shaft in terms of safety, lifting capacity and mechanization level, it is possible to use the development plan of the inclined shaft, and therefore to abandon the inclined shaft and use the shaft.
Chest Muscle Training
The fitness equipment for chest exercises has diverse characteristics and can meet different training needs and goals.
1. Barbell bench press is one of the most common training exercises for chest muscles, mainly training the pectoralis major, shoulders, and triceps. When using a barbell push, it is important to maintain a straight back and stable shoulder blades, avoid excessive use of shoulder and arm strength, and adjust the weight and frequency of the barbell to suit your level of ability.
2. Dumbbell bench press is another common exercise for training chest muscles, which places more emphasis on the stability and balance of the chest muscles compared to barbell bench press. When using dumbbell push, it is necessary to maintain the stability of the arms and try to keep the movements of both arms consistent. A smaller weight can be used for dumbbell push to improve stability and grip.
3. A chest stretcher is a device specifically designed to train chest muscles, which can be adjusted to different body shapes and training needs by adjusting the position of the seat and handle. The advantage of chest thrusters is that they can more effectively isolate and stimulate the pectoralis major muscle while reducing the impact on other muscle groups.
4. A fitness ball is a multifunctional equipment that can be used for various training exercises, including chest training. By performing exercises such as bench presses and push ups on the fitness ball, the challenge and stability requirements for the chest muscles can be increased.
5. The pull-up device is used to exercise upper body muscles, including chest muscles. By performing pull ups, the development of chest muscles can be effectively stimulated. When using the pull-up device, it is important to maintain correct posture and movements, avoid shaking and excessive use of arm strength.
In addition, other equipment such as butterfly machines, fitness ropes, barbells, and flying birds can also be used for chest exercises. No matter which equipment is chosen, the key is to maintain correct movements and postures, grasp appropriate weight and frequency to avoid injury and achieve the best training results
Incline Chest Press Equipment,Bench press chest Trainer,High pull&Low Pull Machine,Pectoral fly training,Olympic Bench
Xuzhou Hongxing Gym Equipment Co., Ltd , https://www.hxyfitness.com