Bidding for bulldozer maintenance in Nanfen Open Pit Mine
Publish: 2021-05-20 07:35:10
1. Construction organization design of open pit mine
1 compilation basis and principle
1.1 compilation basis
(1) ××× Open pit mine ×× The bidding document for the construction of stripping project of mining construction in< br />2 ××× Open pit mine ×× Construction drawing of stripping project of mining construction in
(3) the construction contract signed by our company and the owner
(4) code for construction and acceptance of open pit coal mine engineering issued by relevant national and local departments, as well as relevant specifications, standards and regulatory documents on construction safety, quality acceptance and environmental protection
(5) relevant information and information learned and mastered by field investigation and investigation
(6) our company is engaged in the construction technology experience and technical equipment ability of mine stripping engineering< (1) in strict accordance with the contents of the construction bidding documents and the requirements of the design documents, according to the characteristics of the project, the advanced, reasonable, economic and feasible construction scheme shall be adopted
(2) strict engineering quality assurance system and perfect safety assurance system shall be established in strict accordance with the requirements of ISO9001 international quality certification system and project law
(3) adopt advanced and matching construction equipment and technology, reasonably allocate labor, materials and machinery resources, implement target management and network plan management, and ensure project quality and construction period
(4) reasonably arrange the construction sequence, grasp the key points, highlight the difficulties, organize professional construction, ensure the close connection of each construction process, coordinate the transportation and ensure the construction progress
(5) organize construction in strict accordance with the environmental protection law, environmental regulations and special provisions issued by local governments and relevant departments to prevent environmental pollution and soil erosion
2 project overview
2.1 project name and location
2.2 stripping project location and quantity
this project is an open pit mine ×× The fourth bid section of the stripping project in the western region of the mine was built in, with the engineering quantity of 3.4 million m3 and the average transportation distance of 1.75 km< br /> ×× At the end of the year, four working flat plates with a height of 10m are formed under the surface of the stripping project ×× m～▽ ×× m. Height difference ×× m The stripped earthwork is abandoned to the corresponding mp 200m away from the southeast slope through the ground transportation road of the mining area, ×× Formed at the end of the year ×× M level< br /> ×× See the next page for the location of stripping project at the end of the year ×× Section diagram of stripping project location at the end of the year< br /> ×× The stripping quantities at the end of the year are shown in the following table:
×× Table of stripping horizontal position and quantities at the end of the year
serial number stripping level
(▽ m) stripping quantity (10000 m3) average transportation distance
(km)
mp level (▽ m)
mping quantity (10000 m3)
surface ~ 1070 remarks
1 surface ~ 1030 147.04 1.60 147.04
2 1030 ~ 1020 98.20 1.74 98.20
3 1020 ~ 1010 59.48 1.88 59.48
1 surface ~ 1030 147.04 1.60 147.04 />4 1010 ~ 1000 35.28 2.18 35.28 ▽ 990m above is soil
total 340.00 1.75 340.00
2.3 construction technology and quality standard requirements
2.3.1 the adopted specifications and standards
mainly adopt code for construction and acceptance of open pit coal mine engineering (GB 50175-93) and quality standardization requirements of Baiyinhua coal power company
2.3.2 construction technical parameters
bench height: 10M; Step slope angle: 75 ° Width of working flat plate: 30m; Width of Transportation Road: 15m; Slope: 8%; Slope angle of mping bench 33 °
2.3.3 technical requirements
(1) stripping and mping shall be carried out in strict accordance with the design requirements
(2) all levels of stope should be advanced in parallel, and the parallel operation time should be increased as much as possible
(3) if the coal seam is encountered in the bid section, the roof should be exposed and pushed along the coal seam roof. The roof rock should be cleaned, and the coal can not be extracted as stripping material
(4) if sporadic miscellaneous coal is exposed in the bid section, the construction party must inform Party A in time and separate it according to Party A's requirements
2.3.4 equipment capacity
the mining and loading equipment must be hydraulic pick with bucket capacity of more than 2m3 or loader with bucket capacity of more than 5M3, and the rated load of mp truck shall be more than 20t; At the same time, the necessary sprinkler, bulldozer and other auxiliary equipment shall be equipped< 2.4 natural conditions and construction conditions
2.4.1 natural conditions
the stope of this bid section is located in the west half of the west mining area, which is approximately trapezoidal from northeast to southwest, with a length of about 370m and a width of about 310m. The landform is a gentle wave hill formed by denudation accumulation and wind erosion. It is high in the Northeast (▽ 1042m) and low in the Southwest (▽ 1038m), with an elevation difference of about 5m. Stope geology: the earth is from the surface to 990m, and the rock is below 990m. The mp is located in the corresponding hill area 200m away from the southeast side of the stope, about 260m × 900m, ground ▽ 1041-1050m
the region has a mid temperate arid climate with windy and dry spring, warm summer, cool autumn and cold winter. The extreme temperature was 37.4 ℃ and - 38.6 ℃; The average annual precipitation is 345.9mm, the rainy season is from June to August, accounting for 68% of the annual precipitation, and the daily maximum precipitation is 95.8mm; The average annual evaporation is 1769mm and the average annual relative humidity is 60%; The wind direction is mostly WSW, the wind speed is 1.1-1.4m/s, and the instantaneous maximum wind speed is 21m / s; The average annual thunderstorm days are 28.4 days, the longest icing days are 273 days, and the frozen soil depth is 2.3 M. The seismic fortification intensity is VI
2.4.2 construction conditions
conditions of mining area
the land for the living area is provided by the owner through unified planning. The construction power is connected from the power interface (transformer) provided by the owner; The water for construction shall be arranged and drilled by the owner at a reasonable location on the construction site; The communication condition is good, and there is a receiving tower nearby. The power oil is purchased by the owner
2.5 project features
the project is a sunken open-pit mine with stripping, low soil and high drainage, and the maximum relative height difference is about 70m; The number of stripping projects is large, the daily stripping intensity is high, and the transportation distance is close; The construction period is urgent, which spans one rainy period, not winter; The project is simple, the construction area is large, the natural conditions and construction conditions are good, so it is convenient to concentrate the superior team to carry out the mechanized stripping construction in order. This bid section is closely related to the adjacent three bid sections, so it is necessary to strengthen coordination and close cooperation to achieve synchronous progress
3 construction scheme
3.1 overall construction deployment
3.1.1 overall leading idea
according to the engineering characteristics of this bid, combined with our technical equipment capacity and similar engineering construction experience, in order to ensure the realization of the planning objectives of quality, safety and construction period, the overall leading idea of construction organization is as follows:
pay close attention to the construction preparation, transport road first
upper foot mechanical equipment, orderly and balanced mining and drainage
focus on safety and strictly control process quality
to ensure the early completion of the project, we should work hard to create excellence
the overall implementation is divided into two stages: construction preparation, creating operation conditions and stripping stage
3.1.2 construction preparation
3.1.2.1 organization organization
the leaders of our company attach great importance to this project. After winning the bid, it will be listed as one of the key projects of this year, and the project management method will be implemented. Set up a project management department with strong overall function of "five departments, one office and two institutes", which is fully responsible for the organization and implementation. Dispatch construction management, professional technical personnel and professional construction team with rich construction experience and outstanding performance to undertake the construction
see organization chart on the next page for site management organization
3.1.2.2 construction personnel arrangement
there are three earthwork construction teams in this bid section, each team is arranged by three shifts and two shifts a day for drivers of loading, transportation and auxiliary equipment, and other mechanical equipment operators are arranged by single shift. There are 192 construction workers of various types of work
please refer to "construction personnel arrangement" and "labor schele" for details
the equipment operators must work with certificates, and all the equipment operators have equipment operation certificates
3.1.2.3 configuration of construction machinery and equipment
3.1.2.3.1 configuration of mining, loading, transportation and drainage equipment
the stripping earthwork of this bid section is 3.4 million m3, the average transportation distance is 1.75 km, and the planned effective operation day is 124 days (27 days / month), so the daily average mining and drainage intensity is 27400 m3 / d. according to this, the mining, loading, transportation and drainage equipment is matched: 10 excavators (bucket capacity is 1.4 m3, average capacity is 2916 m3 / D, three shifts), and mp trucks (tonnage is 20,24 T, capacity is 1.5 M3 / D), The average capacity is 600 m3 / D (three shifts), 47 sets, and 3 sets of bulldozers (103, 158 kW). The actual quantity (considering 10% ~ 25% allowance): 3 loaders, 11 excavators, 56 mp trucks and 3 bulldozers. The mechanical equipment will also be dynamically allocated according to the actual progress of the project and the requirements of the owner and the supervising engineer
see the list of construction machinery and equipment invested in the project for the main construction machinery and equipment
3.1.2.3.2 drainage and equipment configuration
according to the geological and hydrological data and site topography provided by the design unit, the surrounding terrain of our bid section is high, the construction site is low-lying, and the surface sand layer is about 8-10m thick. In the early stage of construction, it is planned to excavate annular ditch along the boundary within the mining area, collect the water to the northwest corner of the site, and discharge the water to 400m outside by pump
the drainage scheme below 1030 level will be adjusted according to the amount of water
according to the calculation of the maximum daily precipitation in this area, the accumulated water in the pit is about 460m3 / h, and the submersible pump (250qj80) is equipped accordingly × 80 m3 / h, 80 m3 / h, 80 m) and considering the allowance, a total of 8 sets
3.1.2.3.3 configuration of other auxiliary machinery and equipment. See table of construction machinery and equipment invested for details
3.1.2.3.4 quantity of main machinery and equipment invested in the project
see table of construction machinery and equipment invested for details
ring the construction, dynamic deployment is carried out according to the actual progress of the project to ensure the completion of the monthly plan
list of construction machinery and equipment invested
serial number, equipment name, equipment model proction
manufacturer's specifications and proction capacity remarks
1 tire loader zl100b Liugong 206kW 5.4m3 6 1010m3 / team loading
zl100 Changlin 173kw 5M3 5 935m3 / team loading
966d caterpillar 3.5m3 1 670m3 / team repairing roads
2 mp truck Hino Japan 20 8kw 24t 24 220m3 / shift transportation 2km
Steyr Austria 206kW 20t 12 180m3 / shift transportation 2km
dn329 Baotou 20t 12 180m3 / shift transportation 2km
3 bulldozer T140 Xuanhua 103kW 3 soil collection and splitting
zhengshan-200 Shenyang 158kw 2 soil collection and splitting
4 hydraulic excavator wy40 hangzhong 149kw 2.2m3 1 auxiliary Slope repair
5 grader dy-160a Tiangong 118kW 4.3km/h 1 road repair
6 roller yz12 Xugong 12t 1 road repair
7 sprinkler cs10-d Beijing 10t 2 road repair Water transportation
8 oil tank truck Huanghe jn162 Jinan 121kw 10t 2
9 equipment maintenance truck cixc-1 Jinzhou 2 machine repair
10 bus Huanghai Jilin 2
11 passenger and freight vehicle Nissan Zhengzhou 2
12 car Santana 2000 Shanghai 2
13 charger 150v50a Shenyang 7.5kW 4
14 lathe g7116 Shanghai 6kW 1 machine repair
15 electric welding machine bx-300 Jinan 23.4kw 2
16 submersible pump 250qj-80 × 80 Yuncheng 30kW 8 80m3 / h yang80m pit drainage
17 generator 75gf-3 Wuxi 75kW 2 standby
18 fuel dispenser vf-40 Shanghai 4
19 cutting machine qg-4 Mudanjiang 2.2kW 2
20 oil tank Liaoyang 20t 4
3.1.2.4 purchase of office equipment Walkie talkie and other modern office equipment
3.1.2.5 preparation of traffic equipment
the project department plans to provide three engineering command vehicles for commanding the construction site, contacting with the owner, transporting test personnel and meeting the needs of logistics procurement
3.1.2.6 purchase of communication equipment
1 compilation basis and principle
1.1 compilation basis
(1) ××× Open pit mine ×× The bidding document for the construction of stripping project of mining construction in< br />2 ××× Open pit mine ×× Construction drawing of stripping project of mining construction in
(3) the construction contract signed by our company and the owner
(4) code for construction and acceptance of open pit coal mine engineering issued by relevant national and local departments, as well as relevant specifications, standards and regulatory documents on construction safety, quality acceptance and environmental protection
(5) relevant information and information learned and mastered by field investigation and investigation
(6) our company is engaged in the construction technology experience and technical equipment ability of mine stripping engineering< (1) in strict accordance with the contents of the construction bidding documents and the requirements of the design documents, according to the characteristics of the project, the advanced, reasonable, economic and feasible construction scheme shall be adopted
(2) strict engineering quality assurance system and perfect safety assurance system shall be established in strict accordance with the requirements of ISO9001 international quality certification system and project law
(3) adopt advanced and matching construction equipment and technology, reasonably allocate labor, materials and machinery resources, implement target management and network plan management, and ensure project quality and construction period
(4) reasonably arrange the construction sequence, grasp the key points, highlight the difficulties, organize professional construction, ensure the close connection of each construction process, coordinate the transportation and ensure the construction progress
(5) organize construction in strict accordance with the environmental protection law, environmental regulations and special provisions issued by local governments and relevant departments to prevent environmental pollution and soil erosion
2 project overview
2.1 project name and location
2.2 stripping project location and quantity
this project is an open pit mine ×× The fourth bid section of the stripping project in the western region of the mine was built in, with the engineering quantity of 3.4 million m3 and the average transportation distance of 1.75 km< br /> ×× At the end of the year, four working flat plates with a height of 10m are formed under the surface of the stripping project ×× m～▽ ×× m. Height difference ×× m The stripped earthwork is abandoned to the corresponding mp 200m away from the southeast slope through the ground transportation road of the mining area, ×× Formed at the end of the year ×× M level< br /> ×× See the next page for the location of stripping project at the end of the year ×× Section diagram of stripping project location at the end of the year< br /> ×× The stripping quantities at the end of the year are shown in the following table:
×× Table of stripping horizontal position and quantities at the end of the year
serial number stripping level
(▽ m) stripping quantity (10000 m3) average transportation distance
(km)
mp level (▽ m)
mping quantity (10000 m3)
surface ~ 1070 remarks
1 surface ~ 1030 147.04 1.60 147.04
2 1030 ~ 1020 98.20 1.74 98.20
3 1020 ~ 1010 59.48 1.88 59.48
1 surface ~ 1030 147.04 1.60 147.04 />4 1010 ~ 1000 35.28 2.18 35.28 ▽ 990m above is soil
total 340.00 1.75 340.00
2.3 construction technology and quality standard requirements
2.3.1 the adopted specifications and standards
mainly adopt code for construction and acceptance of open pit coal mine engineering (GB 50175-93) and quality standardization requirements of Baiyinhua coal power company
2.3.2 construction technical parameters
bench height: 10M; Step slope angle: 75 ° Width of working flat plate: 30m; Width of Transportation Road: 15m; Slope: 8%; Slope angle of mping bench 33 °
2.3.3 technical requirements
(1) stripping and mping shall be carried out in strict accordance with the design requirements
(2) all levels of stope should be advanced in parallel, and the parallel operation time should be increased as much as possible
(3) if the coal seam is encountered in the bid section, the roof should be exposed and pushed along the coal seam roof. The roof rock should be cleaned, and the coal can not be extracted as stripping material
(4) if sporadic miscellaneous coal is exposed in the bid section, the construction party must inform Party A in time and separate it according to Party A's requirements
2.3.4 equipment capacity
the mining and loading equipment must be hydraulic pick with bucket capacity of more than 2m3 or loader with bucket capacity of more than 5M3, and the rated load of mp truck shall be more than 20t; At the same time, the necessary sprinkler, bulldozer and other auxiliary equipment shall be equipped< 2.4 natural conditions and construction conditions
2.4.1 natural conditions
the stope of this bid section is located in the west half of the west mining area, which is approximately trapezoidal from northeast to southwest, with a length of about 370m and a width of about 310m. The landform is a gentle wave hill formed by denudation accumulation and wind erosion. It is high in the Northeast (▽ 1042m) and low in the Southwest (▽ 1038m), with an elevation difference of about 5m. Stope geology: the earth is from the surface to 990m, and the rock is below 990m. The mp is located in the corresponding hill area 200m away from the southeast side of the stope, about 260m × 900m, ground ▽ 1041-1050m
the region has a mid temperate arid climate with windy and dry spring, warm summer, cool autumn and cold winter. The extreme temperature was 37.4 ℃ and - 38.6 ℃; The average annual precipitation is 345.9mm, the rainy season is from June to August, accounting for 68% of the annual precipitation, and the daily maximum precipitation is 95.8mm; The average annual evaporation is 1769mm and the average annual relative humidity is 60%; The wind direction is mostly WSW, the wind speed is 1.1-1.4m/s, and the instantaneous maximum wind speed is 21m / s; The average annual thunderstorm days are 28.4 days, the longest icing days are 273 days, and the frozen soil depth is 2.3 M. The seismic fortification intensity is VI
2.4.2 construction conditions
conditions of mining area
the land for the living area is provided by the owner through unified planning. The construction power is connected from the power interface (transformer) provided by the owner; The water for construction shall be arranged and drilled by the owner at a reasonable location on the construction site; The communication condition is good, and there is a receiving tower nearby. The power oil is purchased by the owner
2.5 project features
the project is a sunken open-pit mine with stripping, low soil and high drainage, and the maximum relative height difference is about 70m; The number of stripping projects is large, the daily stripping intensity is high, and the transportation distance is close; The construction period is urgent, which spans one rainy period, not winter; The project is simple, the construction area is large, the natural conditions and construction conditions are good, so it is convenient to concentrate the superior team to carry out the mechanized stripping construction in order. This bid section is closely related to the adjacent three bid sections, so it is necessary to strengthen coordination and close cooperation to achieve synchronous progress
3 construction scheme
3.1 overall construction deployment
3.1.1 overall leading idea
according to the engineering characteristics of this bid, combined with our technical equipment capacity and similar engineering construction experience, in order to ensure the realization of the planning objectives of quality, safety and construction period, the overall leading idea of construction organization is as follows:
pay close attention to the construction preparation, transport road first
upper foot mechanical equipment, orderly and balanced mining and drainage
focus on safety and strictly control process quality
to ensure the early completion of the project, we should work hard to create excellence
the overall implementation is divided into two stages: construction preparation, creating operation conditions and stripping stage
3.1.2 construction preparation
3.1.2.1 organization organization
the leaders of our company attach great importance to this project. After winning the bid, it will be listed as one of the key projects of this year, and the project management method will be implemented. Set up a project management department with strong overall function of "five departments, one office and two institutes", which is fully responsible for the organization and implementation. Dispatch construction management, professional technical personnel and professional construction team with rich construction experience and outstanding performance to undertake the construction
see organization chart on the next page for site management organization
3.1.2.2 construction personnel arrangement
there are three earthwork construction teams in this bid section, each team is arranged by three shifts and two shifts a day for drivers of loading, transportation and auxiliary equipment, and other mechanical equipment operators are arranged by single shift. There are 192 construction workers of various types of work
please refer to "construction personnel arrangement" and "labor schele" for details
the equipment operators must work with certificates, and all the equipment operators have equipment operation certificates
3.1.2.3 configuration of construction machinery and equipment
3.1.2.3.1 configuration of mining, loading, transportation and drainage equipment
the stripping earthwork of this bid section is 3.4 million m3, the average transportation distance is 1.75 km, and the planned effective operation day is 124 days (27 days / month), so the daily average mining and drainage intensity is 27400 m3 / d. according to this, the mining, loading, transportation and drainage equipment is matched: 10 excavators (bucket capacity is 1.4 m3, average capacity is 2916 m3 / D, three shifts), and mp trucks (tonnage is 20,24 T, capacity is 1.5 M3 / D), The average capacity is 600 m3 / D (three shifts), 47 sets, and 3 sets of bulldozers (103, 158 kW). The actual quantity (considering 10% ~ 25% allowance): 3 loaders, 11 excavators, 56 mp trucks and 3 bulldozers. The mechanical equipment will also be dynamically allocated according to the actual progress of the project and the requirements of the owner and the supervising engineer
see the list of construction machinery and equipment invested in the project for the main construction machinery and equipment
3.1.2.3.2 drainage and equipment configuration
according to the geological and hydrological data and site topography provided by the design unit, the surrounding terrain of our bid section is high, the construction site is low-lying, and the surface sand layer is about 8-10m thick. In the early stage of construction, it is planned to excavate annular ditch along the boundary within the mining area, collect the water to the northwest corner of the site, and discharge the water to 400m outside by pump
the drainage scheme below 1030 level will be adjusted according to the amount of water
according to the calculation of the maximum daily precipitation in this area, the accumulated water in the pit is about 460m3 / h, and the submersible pump (250qj80) is equipped accordingly × 80 m3 / h, 80 m3 / h, 80 m) and considering the allowance, a total of 8 sets
3.1.2.3.3 configuration of other auxiliary machinery and equipment. See table of construction machinery and equipment invested for details
3.1.2.3.4 quantity of main machinery and equipment invested in the project
see table of construction machinery and equipment invested for details
ring the construction, dynamic deployment is carried out according to the actual progress of the project to ensure the completion of the monthly plan
list of construction machinery and equipment invested
serial number, equipment name, equipment model proction
manufacturer's specifications and proction capacity remarks
1 tire loader zl100b Liugong 206kW 5.4m3 6 1010m3 / team loading
zl100 Changlin 173kw 5M3 5 935m3 / team loading
966d caterpillar 3.5m3 1 670m3 / team repairing roads
2 mp truck Hino Japan 20 8kw 24t 24 220m3 / shift transportation 2km
Steyr Austria 206kW 20t 12 180m3 / shift transportation 2km
dn329 Baotou 20t 12 180m3 / shift transportation 2km
3 bulldozer T140 Xuanhua 103kW 3 soil collection and splitting
zhengshan-200 Shenyang 158kw 2 soil collection and splitting
4 hydraulic excavator wy40 hangzhong 149kw 2.2m3 1 auxiliary Slope repair
5 grader dy-160a Tiangong 118kW 4.3km/h 1 road repair
6 roller yz12 Xugong 12t 1 road repair
7 sprinkler cs10-d Beijing 10t 2 road repair Water transportation
8 oil tank truck Huanghe jn162 Jinan 121kw 10t 2
9 equipment maintenance truck cixc-1 Jinzhou 2 machine repair
10 bus Huanghai Jilin 2
11 passenger and freight vehicle Nissan Zhengzhou 2
12 car Santana 2000 Shanghai 2
13 charger 150v50a Shenyang 7.5kW 4
14 lathe g7116 Shanghai 6kW 1 machine repair
15 electric welding machine bx-300 Jinan 23.4kw 2
16 submersible pump 250qj-80 × 80 Yuncheng 30kW 8 80m3 / h yang80m pit drainage
17 generator 75gf-3 Wuxi 75kW 2 standby
18 fuel dispenser vf-40 Shanghai 4
19 cutting machine qg-4 Mudanjiang 2.2kW 2
20 oil tank Liaoyang 20t 4
3.1.2.4 purchase of office equipment Walkie talkie and other modern office equipment
3.1.2.5 preparation of traffic equipment
the project department plans to provide three engineering command vehicles for commanding the construction site, contacting with the owner, transporting test personnel and meeting the needs of logistics procurement
3.1.2.6 purchase of communication equipment
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