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Temporary mine construction projects are commonly found in short-circuit through-passages, temporary exits, temporary water tanks, temporary pump house substations, contact lanes, temporary ventilation lanes, temporary shelters, temporary car-shifting rooms, and temporary liver silos. Temporary slipping coal eyes, etc.
(II) Arrangement of the construction sequence of the mining project 1. Overall arrangement of the construction project In the arrangement of the construction sequence of the mining project, the construction installation and civil engineering work are always followed by the progress of the mining construction work, and the contents of the civil construction and installation engineering itself are considered. The characteristics are arranged; and the well engineering and civil engineering work must prepare the necessary construction conditions for the installation project. Therefore, the mine construction project often becomes the key route of the entire mine project, and the installation and civil works are not only in the initial stage of construction, but in addition to the tight work to ensure the construction conditions of the mine construction project, a large amount of content needs to be completed in the mine construction project. After that, focus on finishing later. Therefore, a mine project must consider the relationship between each other, pay attention to the impact of each other, not only to avoid the mechanical and electrical installation and civil engineering to seize the construction period of the mine construction project, but also to prevent the mining construction project from delaying, affecting the final installation and civil engineering projects. The completion resulted in a delay in the construction period.
The limitation of mine underground roadway engineering by underground space is the biggest feature of its construction sequence arrangement, and it is also the biggest feature different from other ground engineering. The overall arrangement of the tunnel construction should be treated according to the specific circumstances. For example, when the overall arrangement of the mine is relatively large, the drainage and power supply system construction should be arranged as much as possible, and the mine with serious gas hazard should be arranged as much as possible. The construction of the project is carried out first to form a complete ventilation system as soon as possible.
2. Points roadway construction orders on schedule and mine construction is not implicated on time, without affecting the contents of the last period, such as construction site railways and rail loading station area, warehouse, machine repair, etc., can be used as a non-critical path The supplementary content, see the stitching, batching, staging, and the balance of labor, equipment and materials.
For civil engineering and installation projects that affect the progress of the mine construction project and involve the construction of the key route project, it should be completed before the construction of the corresponding mine construction project. For example, the construction of the excavation derrick, the alternate connection between the main well temporary cage lifting system and the auxiliary shaft permanent lifting system, etc., are necessary to ensure that the mine construction must have (improved transportation), and must be completed as soon as possible.
For permanent equipment and facilities that can be used, it should be constructed and installed as soon as possible. Such as underground pump house and corresponding pipeline engineering, underground substation, early construction can be built early, or to avoid the construction of temporary technicians.
In addition to the above characteristics, the electromechanical installation engineering should also consider that there are more non-standard equipments in the initial stage of the project, and there are relatively many processing links. The control is relatively difficult, and more affluent time should be left. The equipment installation of the ground production system can be staggered from the contents of the underground. Generally, the ground content is completed first, and the construction of the underground dike chamber is completed, and the installation of the underground well is centralized (the installation of the mining area). However, the final installation project should not be completed too late, and sufficient stand-alone and joint operation and commissioning time must be left in order to have time to solve the exposed problems during the commissioning and commissioning phases.
With the simplification of mining systems and the progress of modernization and modernization of mining equipment, the installation of electromechanical equipment will occupy more and more proportion and construction time, and may also become part of the key route. All these problems should be based on the specific conditions, according to the process relationship and the constraints of each other, in accordance with the principles of the organization's key routes, the construction sequence, reasonable arrangements.
May be the cabinet of aluminium alloy used for manufacturing later, people developed the push-pull cabinet.Push-pull cabinet did not stop the problem, because of push-pull cabinet casement opening and closing of stationary state basic same.
One disadvantage of push-pull cabinet is a must have at least one fixed fan, greatly reduce the cabinet area: the other is a fatal weakness could not meet the requirements of air tightness and water tightness.
Of push-pull cabinet casement fixed point is up and down two guide rail, so the wind pressure strength is limited.Modern building more and more high to the requirement of energy conservation and other functions, the sealing of the cabinet, sound insulation and heat insulation, air tightness and water tightness and wind resistance strength and security level, there are strict requirements.To meet the requirements of a variety of integrated and produced within the batter casement cabinets, or the Europe type cabinet.
The cabinet of modern glass curtain wall building model related to the cabinet frame on the wall of the fixed way.Because the glass curtain wall of air tightness, water tightness and wind resistance strength of the demand is higher, on the curtain wall cabinet accessories, according to the need to develop relatively independent.
Modern architecture of the cabinet is not confined to the level of manpower and starting from the requirements of ventilation heat removal, the height of the cabinet is an important factor decided to take a breath row of thermal efficiency, so people invented all kinds of cabinet.
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