Summary of mine construction work

Summary is to analyze and study the relevant situation at a certain stage and make written materials with guiding conclusions. It can help us sum up our previous thoughts and carry forward our achievements, so we should write a summary. How to write a summary is correct? The following is a summary of mine construction work I collected for you, hoping to help you.

Summary of Mine Construction Work 1 I. Overview of the Project

The design length (inclined length) of Maidizhang main inclined shaft is 1233.379m, in which the bedrock section is 1 179.379m, the driving section is 24.03m2, and the roadway slope is-20.

The design length (inclined length) of the auxiliary inclined shaft is1170.13m, in which the bedrock section is113m and the excavation section is 21..

Second, mechanical equipment.

The main and auxiliary inclined shafts of Maidizhang adopt double hoisting system, each well is equipped with two 2.5m hydraulic winches and 1 winch for discharging gangue, and Daewoo 55 electric excavator is equipped with 8m3 skip for discharging gangue and 1 winch for discharging gangue by bolting and shotcreting.

Third, the mode of operation.

The "June 8th" manufacturing method is adopted for the main and auxiliary inclined shafts of Maidizhang, with excavation support, gangue discharge and initial spraying for eight hours (parallel operation of gangue discharge and support), three excavations and one initial spraying (two days and three cycles) and 3m drill pipe excavation.

Develop professional team construction (2 driving teams, 2 spraying teams, 1 electromechanical team). The driving team adopts drilling support and gangue discharge team as the comprehensive team, and the support and gangue discharge work in parallel, and the drilling support and gangue discharge are separated. The shotcrete team has a primary shotcrete team and a roadway team, and the electromechanical team is responsible for the maintenance of electromechanical equipment.

In the normal cycle:

The project department arranges the dispatching room to seek truth from facts about the time spent in each link of on-site construction, and adjusts the operation cycle time every ten days according to the construction situation in the first ten days and the actual situation on site. According to the construction situation in April, the project department adjusted the regular cycle operation time of the main and auxiliary inclined shafts, and each cycle of driving support and gangue discharge was 12 hour (including 5 hours of drilling and blasting, 3 hours of support and 7 hours of gangue discharge). The dispatching room will report yesterday's recycling every day. The production manager will hold an analysis meeting to find out the reasons and conduct strict assessment for the circulating team that has not been completed for 12 hours, so as to effectively improve the normal circulating activities of the main and auxiliary inclined shafts. From May/KLOC-0 to May 30, the driving footage of the main inclined shaft 11m, the normal circulation rate reached 92%, and the driving footage of the auxiliary inclined shaft was 65,438.

Smooth blasting:

Each district team of the project department arranges two technicians to be responsible for the daily inspection of smooth blasting and the evidence collection of field data. The project department requires technicians to make realistic roadway formation of each team on site and draw a map for archiving, and reward the team with good blasting effect in strict accordance with the reward and punishment system. The technical manager will organize an analysis meeting for the team with poor blasting effect, find out the reasons and continuously improve the level of smooth blasting. From May/KLOC-0 to the end of May, smooth blasting was carried out by the main and auxiliary inclined shaft rigs. The smooth blasting rate of main inclined shaft is 72%, and that of auxiliary inclined shaft is 70%.

Bottom cleaning and kiln transportation:

In order to ensure smooth bottom cleaning and kiln discharge, strict process acceptance will be carried out by the project department, and the next cycle will be carried out after the last cycle is completed. In terms of bottom cleaning and kiln discharging, the project department will arrange technicians and district team inspectors to check the bottom cleaning and kiln discharging during the shift change, so as to effectively promote the smooth progress of bottom cleaning and kiln discharging. At present, the bottom cleaning rate of the main and auxiliary inclined shafts in Maidizhang is 100%.

Summary of mine construction work two years ago, saying goodbye to the old and welcoming the new. Looking back on my work in the past five and a half months, as an intern in mining construction, with the care and help of the leaders and masters of the project department, I strictly demand myself, strive to do a good job as an intern in mining construction, study and exercise in practice, and apply my professional knowledge to practical work, greatly improving my work ability, including organization and coordination ability, management ability and contingency ability, and more importantly, gain valuable work experience accumulation.

8 1 was my first day in the company, and then I received 20 days of simple training at the company headquarters. During the training, I deeply realized the company's corporate culture: people-oriented, honesty-oriented. If the company wants to build a "century-old shop", "integrity" is essential. It is often said that enterprises rely on people to develop and people rely on enterprises to survive. I think Jin Chengxin is a big stage for us to show our talents and a guarantee for a better life. I want to contribute to a century-old store in Jin Chengxin and strive for a better life.

August 20th is our first day in Laiwu Project Department. As a newly graduated college student, my work experience is zero, but the company has arranged an experienced master for me, Master Zhao Aizhen. In work and life, the leaders and masters of the project department have given great concern. At first, the master assigned me the task of going to the construction site every day to understand the construction environment and technology. According to the master's arrangement, I went to the construction site every day in the first month to observe the construction process and laws. A month later, I was familiar with the construction process of the ramp, including drilling, charging, blasting, topping, bolt support, hanging net, slag discharge and shotcreting. This is a cycle. The process of shaft construction is drilling, blasting, prying, slagging, wall building and pouring.

In the next few months, the master familiarized me with the specific construction measures and construction drawings. First of all, I should be able to read the drawings, and then guide the workers to the specific construction methods according to the construction measures. Measuring and setting out is a necessary condition for accurate construction. When the surveyors go down the well, I will follow them, learn the survey methods and steps, accurately grasp the construction data, facilitate the guidance of construction, and prevent the project from overbreak or underexcavation. During the shaft, due to the large amount of water, the company leaders and the project department decided to stop the mud pad and grouting. Before stopping the slurry pad, use stones as the filter layer, and then fix the filter hopper and orifice pipe. Adjust the angle and spacing of orifice pipes according to construction measures, and then pour concrete. During pouring, the water gushed from the shaft should be discharged in time to prevent concrete dilution and mortar loss, and the concrete should be vibrated while pouring. After the grout stop pad solidifies for 7 days, start drilling with DTH drill, and then grouting with grouting machine to control the grouting pressure. The main shaft construction mainly includes grouting behind the wall, grouting in the loading room and anchor cable reinforcement in the loading room. Ramp construction is mainly to control smooth blasting, drill more holes and charge less, strictly control the spacing between peripheral eyes, which shall not exceed the design, and control the angle and spacing of anchor rods, with the angle not less than 75 degrees and the spacing 1 m. Wear labor protection articles correctly underground to ensure work safety.

During these five and a half months, the leaders and masters of the project department took me to study, talk about theory and practice. It was they who made me understand the knowledge of mine construction. But I think I still have a lot of knowledge to learn, and I still need to improve my own shortcomings. I will work harder in the future and strive to become a qualified technician as soon as possible.

Summary of Mine Construction Work 3 I. Summary of Mine Construction

The reconstruction and expansion project of No.2 adit in Hongshan Coal Mine was designed and constructed under the condition of incomplete procedures and insufficient preparation. The mine design is entrusted to Yankuang Design Institute with a design capacity of 600,000 tons/year. The mine adopts inclined shaft development and comprehensive mechanized coal mining method with long mining direction. The design and construction period of the mine is 24 months.

The project is undertaken by China Coal 71 Engineering Office and Yankuang New Road Company, and supervised by Yankuang Design Institute Supervision Company. On September 29th, 20xx, the main shaft, auxiliary shaft and air shaft broke ground, and the main inclined shaft, return air inclined shaft and No.2 drift face were constructed in the later period of China Coal 71 Engineering Office. Yankuangxin Road Company undertakes auxiliary inclined shaft and bottom hole support project; Great Wall Supervision Company of Yankuang Design Institute sent supervisors to the site to supervise the construction safety and quality. The company set up the technical transformation headquarters of Hongshan Coal Mine to comprehensively manage the project quality, safety management and schedule management.

Second, the progress of the project

The mine construction part of the mine reconstruction and expansion project has a large amount of work, many construction links and a long period. The construction speed directly affects the construction period of mine reconstruction and expansion project. This is a key management project and key route. The preliminary design of mine construction project is 7963 meters. In order to make a scientific and reasonable mine construction plan and determine the mine construction period, based on the principle of seeking truth from facts, the mine construction project was verified and counted again according to the mine construction drawing, and the draft construction progress plan of mine reconstruction and expansion project was discharged. By the end of 65438+February, 15 days, the total amount of mine construction projects has been completed by 4 100 meters, and the remaining 577 1 meter accounts for 4 1.5% of the engineering quantity.

Up to now, the main inclined shaft (894.67m), auxiliary inclined shaft (689.42m), return inclined shaft (74.5m), bottom parking lot (206.9m), main belt conveyor tail connecting lane (295.5m), track uphill parking lot (80.3m) and track uphill lower connecting lane (2/kloc-) have been completed. In addition, the construction of the uphill track of the main shaft of the wind shaft is relatively at the same time (494m is completed). It is estimated that the track will go up the mountain at the end of 20xx 1 month, and the return air and belt will be 230m and 86m away from the wind shaft respectively.

In addition, in order to speed up the mine construction progress and shorten the construction period, according to the company's arrangement, the original No.2 adit stopped coal production on July 20xx 1 day, and the original production system was used to start the construction of two gateway from the first mining face design, and the construction started on August 8, 20xx, 487 meters more than the normal construction sequence. The track entrance and exit measures lane construction has been completed (266.5m) and entered the track construction (125m), and the belt entrance and exit measures lane was basically completed at the end of 65438+February (168m).

Third, the project quality and safety management

In order to strengthen the management of the reconstruction and expansion project of No.2 adit in Hongshan Coal Mine, Great Wall Supervision Company was invited to conduct on-site supervision on construction safety and project quality. * * * Four supervisors will be stationed at the construction site for supervision and inspection. The reconstruction and expansion project department also organizes the personnel on duty to manage the site three times a day to make up for the lack of supervision, thoroughly strengthen safety management and refine project quality management.

Strengthen safety management, ensure safe construction, organize various professions to seriously summarize the work of 20xx, find out the deficiencies, intensify the investigation of hidden dangers and ensure safe production. Focus on investigating all kinds of hidden dangers, "three violations" and various unsafe factors, pay close attention to the on-site implementation of safety laws, regulations and measures, and strictly supervise the on-site rectification of existing problems. More than 80 "hidden danger notices", "work contact sheets" and "punishment sheets" have been issued since the construction started. Through unremitting efforts, serious injury accidents have been eliminated.

Four. 20xx work plan

The year of 20xx is a crucial year for the construction and development of Hongshan Coal Mine, which is faced with two major tasks: the transformation of old mines and the preparation of new mines. The original Hongshan coal mine is a small mine with an annual output of 90,000 tons, and its mining technology is backward. At present, the organization, staffing, management mode and system construction of the mine are far from meeting the needs of 600,000 tons of modern mine production, and there is a serious shortage of professional management talents in coal mine production, technology, management and safety. There are many links, and all professional managers want Qi Xin to work together to carry out all the work in an orderly and tense manner. At the same time, the mine preparation work has entered a critical stage, and the recruitment and introduction of personnel, the implementation of raw coal production team, various forms of personnel training, office logistics facilities and equipment procurement are carried out at the same time. Timely handle all kinds of licenses and procedures of the mine, and make preparations for trial production, single acceptance, comprehensive acceptance and next year's mine production.