The implementation of the schedule control of the mining project construction project starts from the mine construction preparation and is completed and put into production. The construction progress process needs the construction progress control personnel to grasp the progress of the project from the beginning to the end, and finds that the progress is deviated and adjusted in time.
(I) Progress control objectives of mining engineering construction projects The objective of the construction project construction project schedule control is the construction period. In order to effectively implement the control, it is necessary to decompose the total construction period objectives of the mine construction to clarify the various stages, projects, units and key The target of the node.
1. Defining the objectives of the construction phase and controlling the progress of the project The mining project construction project usually divides the construction preparation stage, the wellbore construction stage, the well-to-shaft transition, the roadway and the Tongcheng construction stage and the construction stage of the mining area according to the nature of its construction. During the construction preparation phase, various conditions for the completion of the wellbore shall be completed, involving the "three links and one leveling" and the preparation of various temporary facilities. Any delay in the work will affect the normal start of the wellbore and affect the total construction period. During the construction stage of the wellbore, although the amount of wellbore engineering is small, the occupation period is long, and the wellbore construction is the key line project. The construction unit should try to adopt mature and advanced technology to speed up the construction progress of the wellbore and ensure that the wellbore is short-circuited as scheduled. Through. During the transition of the roadway and the construction of the roadway and the room, the construction tasks are heavy, the working face is many, the construction team is many, and the auxiliary work such as lifting transportation, ventilation and drainage is involved. Therefore, it is necessary to control the construction progress on the key lines and coordinate the non-critical work. The schedule is organized to organize parallel crossovers and lap joint construction operations. In addition, at this time, the auxiliary well enters the permanent equipment, and it is necessary to speed up the progress to prevent the delay from affecting the upgrading work in the later stage of the mine construction. During the construction phase of the mining roadway, the mine basically needs to form a ventilation system, and the lifting capacity is improved. When arranging the construction of the mining roadway, it is necessary to pay attention to coordinate the supporting operation of the installation project, and at the same time accelerate the construction work of the ground civil construction and installation work to ensure the total construction period of the completion and production. aims.
2. Clarify the responsibility of the contractor and coordinate the progress of the project. The construction of the mining project is complex and requires a large number of construction teams. For each unit project or division project, the construction unit should clearly define the project under the overall construction schedule. When the completion time is completed, especially when a construction project has contracted a number of construction units, the construction arrangement should be coordinated so that the parallel operation of the professional engineering can be smoothly carried out to ensure the smooth implementation of the project as planned. For vertical shaft construction, when freezing method is used, the freezing and excavation of the wellbore shall be contracted by different construction units. At this time, the control of the construction period depends on the freezing unit. If the wellbore is frozen, it will not be guaranteed to be excavated on time, which will affect the wellbore. During the construction period, if the freezing temperature of the wellbore is too low, it will be difficult to excavate the frozen soil, which will also affect the construction progress of the wellbore. Therefore, the mutual coordination between the contracting units is conducive to the normal implementation of the project schedule.
3. Identify important construction nodes and organize comprehensive construction During the construction of the mine, the construction preparation work should be completed around the start of the first wellbore. Short-circuiting through the wellbore in the end is the beginning of the transition of the tunnel to the tunnel and the alternate equipment for the main and auxiliary wells. The completion and delivery of permanent equipment around the wellbore is a sign of the beginning and completion of the construction of the ground civil and installation works. Around the important construction nodes in the construction of the project, it is necessary to organize the comprehensive construction and realize the node control of the project progress. For example, after the main and auxiliary shafts are short-circuited, the auxiliary shaft can be permanently equipped. The permanent equipment around the auxiliary shaft should complete the installation of the wellbore equipment, the construction of the lifting machine room, the installation of the hoist, the installation of the derrick, the construction of the wellhead, and the auxiliary shaft. The construction of the supporting ground bathroom, changing room, ground drainage facilities, etc., the organization of comprehensive supporting construction is the key to ensure the smooth implementation of the permanent equipment of the auxiliary shaft according to the schedule.
(II) Implementation of the progress control of the mining project Construction project The implementation of the progress control of the mining project construction project runs through the entire project construction. As the progress control personnel, the specific implementation control of the project includes the following aspects:
1. Carefully prepare the schedule of the construction project According to the requirements of the project construction, prepare the overall project schedule that meets the actual operability, and then formulate the decomposition plan according to the construction stage, construction unit and project composition, clarify the objectives, and facilitate the schedule. Control and adjustment.
2. Review the schedule of the construction contractor The schedule submitted by the construction contractor shall be carefully reviewed according to the requirements of the overall schedule, and the construction completion time, construction sequence and rationality of the construction process, resource matching requirements and The coordination of the schedule of other construction contractors, timely rectification of existing problems, to avoid affecting the normal construction of the project.
3. Supervising and inspecting the implementation of the construction schedule In the construction process of the mining project, the control of the implementation schedule requires the control personnel to go deep into the site to obtain the actual situation of the project progress, and compare and analyze with the planned progress to analyze the situation deviation. To find out the reasons, propose rectification of the existing problems, and at the same time assist in solving the related problems in the construction and the expansion of the prevention and control delays.
4. Adjust the schedule and control its implementation due to the deviation of the construction unit's progress and affect the progress of the construction. At this time, the construction schedule should be adjusted according to the basic principles of schedule control. The key adjustments should be based on key work and key node time. Control points, try to restore the project to the normal state in a short period of time, and implement the adjusted schedule, and strictly control the construction progress as planned.
(I) Progress control objectives of mining engineering construction projects The objective of the construction project construction project schedule control is the construction period. In order to effectively implement the control, it is necessary to decompose the total construction period objectives of the mine construction to clarify the various stages, projects, units and key The target of the node.
1. Defining the objectives of the construction phase and controlling the progress of the project The mining project construction project usually divides the construction preparation stage, the wellbore construction stage, the well-to-shaft transition, the roadway and the Tongcheng construction stage and the construction stage of the mining area according to the nature of its construction. During the construction preparation phase, various conditions for the completion of the wellbore shall be completed, involving the "three links and one leveling" and the preparation of various temporary facilities. Any delay in the work will affect the normal start of the wellbore and affect the total construction period. During the construction stage of the wellbore, although the amount of wellbore engineering is small, the occupation period is long, and the wellbore construction is the key line project. The construction unit should try to adopt mature and advanced technology to speed up the construction progress of the wellbore and ensure that the wellbore is short-circuited as scheduled. Through. During the transition of the roadway and the construction of the roadway and the room, the construction tasks are heavy, the working face is many, the construction team is many, and the auxiliary work such as lifting transportation, ventilation and drainage is involved. Therefore, it is necessary to control the construction progress on the key lines and coordinate the non-critical work. The schedule is organized to organize parallel crossovers and lap joint construction operations. In addition, at this time, the auxiliary well enters the permanent equipment, and it is necessary to speed up the progress to prevent the delay from affecting the upgrading work in the later stage of the mine construction. During the construction phase of the mining roadway, the mine basically needs to form a ventilation system, and the lifting capacity is improved. When arranging the construction of the mining roadway, it is necessary to pay attention to coordinate the supporting operation of the installation project, and at the same time accelerate the construction work of the ground civil construction and installation work to ensure the total construction period of the completion and production. aims.
2. Clarify the responsibility of the contractor and coordinate the progress of the project. The construction of the mining project is complex and requires a large number of construction teams. For each unit project or division project, the construction unit should clearly define the project under the overall construction schedule. When the completion time is completed, especially when a construction project has contracted a number of construction units, the construction arrangement should be coordinated so that the parallel operation of the professional engineering can be smoothly carried out to ensure the smooth implementation of the project as planned. For vertical shaft construction, when freezing method is used, the freezing and excavation of the wellbore shall be contracted by different construction units. At this time, the control of the construction period depends on the freezing unit. If the wellbore is frozen, it will not be guaranteed to be excavated on time, which will affect the wellbore. During the construction period, if the freezing temperature of the wellbore is too low, it will be difficult to excavate the frozen soil, which will also affect the construction progress of the wellbore. Therefore, the mutual coordination between the contracting units is conducive to the normal implementation of the project schedule.
3. Identify important construction nodes and organize comprehensive construction During the construction of the mine, the construction preparation work should be completed around the start of the first wellbore. Short-circuiting through the wellbore in the end is the beginning of the transition of the tunnel to the tunnel and the alternate equipment for the main and auxiliary wells. The completion and delivery of permanent equipment around the wellbore is a sign of the beginning and completion of the construction of the ground civil and installation works. Around the important construction nodes in the construction of the project, it is necessary to organize the comprehensive construction and realize the node control of the project progress. For example, after the main and auxiliary shafts are short-circuited, the auxiliary shaft can be permanently equipped. The permanent equipment around the auxiliary shaft should complete the installation of the wellbore equipment, the construction of the lifting machine room, the installation of the hoist, the installation of the derrick, the construction of the wellhead, and the auxiliary shaft. The construction of the supporting ground bathroom, changing room, ground drainage facilities, etc., the organization of comprehensive supporting construction is the key to ensure the smooth implementation of the permanent equipment of the auxiliary shaft according to the schedule.
(II) Implementation of the progress control of the mining project Construction project The implementation of the progress control of the mining project construction project runs through the entire project construction. As the progress control personnel, the specific implementation control of the project includes the following aspects:
1. Carefully prepare the schedule of the construction project According to the requirements of the project construction, prepare the overall project schedule that meets the actual operability, and then formulate the decomposition plan according to the construction stage, construction unit and project composition, clarify the objectives, and facilitate the schedule. Control and adjustment.
2. Review the schedule of the construction contractor The schedule submitted by the construction contractor shall be carefully reviewed according to the requirements of the overall schedule, and the construction completion time, construction sequence and rationality of the construction process, resource matching requirements and The coordination of the schedule of other construction contractors, timely rectification of existing problems, to avoid affecting the normal construction of the project.
3. Supervising and inspecting the implementation of the construction schedule In the construction process of the mining project, the control of the implementation schedule requires the control personnel to go deep into the site to obtain the actual situation of the project progress, and compare and analyze with the planned progress to analyze the situation deviation. To find out the reasons, propose rectification of the existing problems, and at the same time assist in solving the related problems in the construction and the expansion of the prevention and control delays.
4. Adjust the schedule and control its implementation due to the deviation of the construction unit's progress and affect the progress of the construction. At this time, the construction schedule should be adjusted according to the basic principles of schedule control. The key adjustments should be based on key work and key node time. Control points, try to restore the project to the normal state in a short period of time, and implement the adjusted schedule, and strictly control the construction progress as planned.
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