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Standard for quality inspection and assessment of shaft sinking and drifting of coal mine
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MT 5009-1994
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Standard similar to MT 5009-1994 MT/T 1198 Basic data | Standard ID | MT 5009-1994 (MT5009-1994) | | Description (Translated English) | Standard for quality inspection and assessment of shaft sinking and drifting of coal mine | | Sector / Industry | Coal Industry Standard | | Word Count Estimation | 185,176 | | Date of Issue | 10/12/1994 | | Date of Implementation | 7/1/1995 | | Summary | This standard applies to coal in industrial production, construction of the mine shaft engineering quality inspection and assessment. | MT50: ---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Standard for quality inspection and assessment of shaft sinking and drifting of coal mine
People's Republic of China Coal Industry Standard
MT/T 5009-1994
Coal Mine Tunnel Engineering Quality Inspection and Evaluation Standards
Published on October 12,.1994
1995-07-01 implemented
Published by the Ministry of Coal Industry of the People's Republic of China
Contents
About publishing
Notice of "Quality Inspection and Evaluation Standards for Coal Mine Tunnel Engineering" Coal Regulation (1994) No. 518
1 General 1
2 Engineering division of quality inspection and assessment 1
3 Grade of quality inspection assessment 3
4 Quality inspection assessment procedures and organization 4
5 Tunneling Engineering 4
6 Concrete and reinforced concrete engineering 8
7 Anchor shot support engineering 13
8 Block Support Engineering 17
9 Bracket Support Engineering 20
10 Wellbore Engineering 23
11 Well shaft engineering 25
12 Freezing Works 27
13 Concrete curtain works 29
14 Water Control Engineering 30
15 Ventilation safety facilities engineering 33
16 Auxiliary Engineering Underground 35
17 Underground track laying project 36
Appendix A Quality Inspection Evaluation and Selection Criteria for Individual Projects 43
Appendix B Section Engineering Quality Suggestion Evaluation Form 45
Appendix C Comprehensive Assessment Table for Unit Engineering Quality Inspection 46
Appendix D Engineering Appreciation Quality Inspection and Evaluation Form for Designated Units 47
Appendix E Checklist for Quality Assurance Information of Unit Engineering 51
Appendix F Common Inspection Tools Table 52
Appendix G Common Materials Inspection Methods and Sampling Quantity for Coal Mine Roadway Engineering 53
Appendix H Inspection of Concrete Strength of Roadway Support Engineering 54
Appendix I Sampling method for bolted shotcrete quality testing of well and road support engineering 55
Appendix J Total Water Leakage and Waterproofing Standards after Completion of Shaft Shafts and Chambers 56
Appendix K Glossary 57
Appendix L Explanation of Terms in this Standard 59
References 60
Notice on Issuing "Quality Inspection and Evaluation Standards for Coal Mine Tunnel Engineering"
Coal Regulations (1994) No. 518
According to the requirements of the State Planning Commission's Jijing (1987) No. 2390, the former China Unified Coal Mine Corporation organized relevant units to
The "Trial Measures for Quality Standards and Inspection Ratings" was revised and renamed as "Quality Inspection and Evaluation Standards for Coal Mine Tunnel Engineering".
The MT 5009-94 Standard for Quality Inspection and Evaluation of Coal Mine Roadway Engineering is now approved as a compulsory standard for the coal industry and will be implemented as of July 1,.1995.
The original "Trial Measures for Quality Standards and Inspection and Rating of Coal Mine Roadway Engineering" and "Supplementary Provisions for Trial Measures for Quality Standards and Inspection and Rating of Coal Mine Roadway Engineering"
Abolished at the same time.
This standard is managed by the Ministry of Coal Industry, and the specific work is carried out by the Beijing Institute of Well Construction, China Coal Research Institute.
Ministry of Coal Industry of the People's Republic of China
October 12,.1994
1 General
1.0.1 In order to unify the quality standards and inspection and evaluation methods of coal mine shaft engineering, strengthen enterprise management, and ensure project quality, this standard is specially formulated.
1.0.2 This standard is applicable to the quality inspection and evaluation of shaft engineering in the production and construction of coal industry.
1.0.3 This standard is based on the "Code for Construction and Acceptance of Mine Shaft and Lane Engineering" (GB J213-90),
Uniform Standards for Inspection and Evaluation (GB J300-88) and Standards for Quality Inspection and Evaluation of Building Engineering (GB J301-88), and
Prepared with reference to relevant industry norms and standards.
1.0.4 The coal mine tunnel project must be constructed in accordance with the construction drawing design, construction organization design, or operating procedures (including construction technical measures). Construction team
Weaving design or operation regulations (including construction technical measures) must put forward clear engineering quality requirements and corresponding guarantee measures. Should be practical during construction
Implement comprehensive quality management and strict quality inspection system to eliminate unqualified projects in the construction process.
1.0.5 In addition to this standard, the quality inspection and assessment of coal mine tunnel engineering shall also comply with the relevant national standards.
1.0.6 This standard does not include engineering projects, construction units (mining bureaus, companies) can organize design and construction units,
The principle supplements the provisional standards and is implemented after being reported to the higher authorities for approval.
2 Engineering division of quality inspection and assessment
2.0.1 The quality inspection and assessment of coal mine tunnel engineering shall be divided into sub-projects, sub-projects and unit projects.
2.0.2 The division of sub-projects and sub-projects in coal mine tunnel projects shall meet the following requirements.
The sub-projects are mainly divided by procedures and types of work. The sub-projects are divided according to the main parts of the shaft engineering. For large projects and long construction periods
The wellbore and well engineering, and the main roadway engineering, can be used as a branch project based on the actual monthly footage.
Sub-item and division project names shall comply with the requirements of Table 2.0.2
5 Ventilation safety facilities
6 Track laying underground
Track bed, sleeper base, track bed, sleeper, switch sleeper
Track, turnout track *, turnout *
Safety protection engineering gauge rod, anti-climbing device, anti-slip device, idler, idler, safety sign
Note. ① Those with * symbol after the name of the sub-item or sub-project are designated sub-items or sub-projects. In the project of naked wells and lanes, bedrock excavation is a designated sub-item.
② For the sub-ditch project with a clear width of less than 0.5m, only one sub-item is to be inspected. The sub-ditch cover sub-project is completed at the unit project.
Check the quality of look and feel at the time of collection.
2.0.3 The division of unit projects shall meet the following requirements.
Any project that cannot independently exert its capabilities but has independent construction conditions and constitutes a construction unit is a unit project. Coal mine
The unit engineering of the shaft engineering is divided into six types. vertical shaft, inclined shaft, flat shaft, roadway, chamber, ventilation safety facilities, and underground rail laying. With
The entity project name shall implement the provisions of the "Uniform Name List of Mine Construction Unit Projects".
3 Grade of quality inspection and assessment
3.0.1 The quality inspection and assessment of sub-projects, sub-projects and unit projects of this standard are divided into two levels. "qualified" and "excellent".
3.0.2 The quality level of sub-items shall meet the following requirements.
I. Qualified
1. Ensure that the project must meet the requirements of the corresponding quality inspection and evaluation standards.
2. The inspection points of each inspection item in the basic project shall meet the qualification requirements; 75% or more of the inspection points in the inspection point shall meet the relevant requirements.
According to the qualification requirements of the quality inspection and evaluation standards, the remaining test points must not affect the safe use. This check point is qualified.
3. The total number of measured points of each inspection item in the allowable deviation item is 70% or more.
Within the allowable deviation range, the rest shall not affect the safe use.
Second, excellent
1. Ensure that the project must meet the requirements of the corresponding quality inspection and evaluation standards.
2. The inspection points of each inspection item in the basic project shall meet the qualification requirements; 50% or more of the inspection points in the inspection point shall meet the relevant requirements.
According to the good regulations of the quality inspection and evaluation standards, this checkpoint is excellent. 50% and above checkpoints are excellent, this inspection item is excellent
good. The number of excellent items shall account for 50% or more of the total number of inspection items.
3. The total number of measurement points of each inspection item in the allowable deviation item is 90% or more. The actual measured value is in the corresponding quality inspection evaluation standard.
Within the allowable deviation range, the rest must not affect the safe use.
3.0.3 The quality level of a segment project shall meet the following requirements.
I. Qualified
The quality of the sub-items included shall be all qualified.
Second, excellent
The quality of the sub-items included shall be all qualified, of which 50% or more of the sub-items shall be excellent, and the designated sub-items shall be excellent.
3.0.4 The quality level of the unit project shall meet the following requirements.
I. Qualified
1. The quality of the contained subprojects shall be all qualified.
2. Quality assurance materials are basically complete.
3. The designated unit project must have a visual quality assessment, and its score rate of 70% or higher is qualified.
Note. The designated unit engineering refers to vertical shaft, inclined shaft, flat shaft, underground roadway, main transportation roadway, bucket (or tape) loading
The chamber, the chamber of the underground main transformer station, the chamber of the main drainage pump room, the chamber of the underground winch room, and the corresponding underground track laying project.
Second, excellent
1. The quality of the included segment projects shall be all qualified, of which 50% or more of the segment projects are excellent, and the designated segment projects must be excellent.
2. The quality assurance information is complete, and the specified quality assurance information is complete.
3. The quality score rate of 85% and above is excellent.
3.0.5 When the quality of a sub-item does not meet the eligibility requirements of the corresponding quality inspection and evaluation standards, it must be handled in a timely manner and shall be in accordance with the following provisions
Assess its quality level.
I. Re-assessed sub-items can be re-evaluated for quality.
After the treatment, if it does not change the structure or cause permanent defects, and can meet the design requirements, its quality level can be assessed as qualified, but not
It should be rated as excellent.
3. After treatment, the original structural specifications have been changed, causing permanent defects, but without affecting safe use, and its quality grade can be assessed as passing.
However, the quality level of its branch project should not be evaluated as excellent.
4. The construction unit can verify and meet the requirements of safety and use function, without reinforcement and reinforcement, and its quality grade can be assessed as qualified.
4 Quality inspection and evaluation procedures and organization
4.0.1 The quality inspection and assessment of the well and road engineering shall be carried out in turn according to sub-items, divisions, and unit projects. Inspection and assessment of the quality of sub-items shall be carried out in
It is carried out on the basis of inspection and evaluation of guarantee items, basic items and allowable deviation items.
4.0.2 The construction team shall check each process of its operation, each operation cycle as a check point, and check in accordance with Table A.2 of Appendix A of this standard
The requirements of the measuring points shall be carefully checked by themselves and the construction inspection records shall be made.
4.0.3 The quality of the sub-item shall be based on the self-inspection of the team, and the person in charge of construction (area, team leader) shall organize relevant personnel to inspect and evaluate, and the quality inspector shall verify.
The sub-item project quality inspection and evaluation shall adopt the format of the sub-item project quality inspection and evaluation table in Table A.1 of Appendix A of this standard. Sub-project
In the middle and completion acceptance inspections, checkpoints shall be selected in accordance with the provisions of Table A.2. Of Appendix A, and the test points shall be arranged for actual inspection. If the inspection cannot be carried out, the construction inspection records shall be spot checked.
4.0.4 The quality of a segment project shall be inspected and evaluated by the person in charge of the construction unit (Engineering Office, Mine), and the construction unit (Mining Bureau, Mine) shall
Form approval. The sub-project quality inspection and evaluation shall adopt the format of the sub-project quality inspection and evaluation table in Appendix B of this standard.
4.0.5 The unit's project quality is applied by the construction unit, and the construction unit (mining bureau, mine) is responsible for organizing inspection and evaluation by relevant units (also
The general contracting unit and supervision unit are responsible for organizing inspection and evaluation). Finally, certification by the quality supervision department or the competent authority.
The unit engineering quality inspection and assessment shall adopt the format of the unit engineering quality comprehensive assessment table in Appendix C of this standard.
The design quality of the designated unit project shall be inspected and evaluated by the construction (or supervision) unit and the design and construction unit. Look and feel
The quality inspection and assessment shall adopt the unified format of Tables D.1, D.2, D.3, and D.4 of Appendix D of this standard.
The unit's project quality assurance data verification project shall be implemented in accordance with the contents of the quality assurance checklist in Appendix E of this standard.
4.0.6 When quality inspection and assessment is performed for the completion inspection of the unit project, the quality inspection results of spot checks are not in accordance with the grade of the branch project inspection and assessment results.
Consistent, the reasons should be analyzed, and the final quality level of the project should be researched and determined.
4.0.7 The quality inspection and assessment of concealed projects shall be carried out by both the construction (including supervision) unit (mining bureau, mine) and the construction unit (engineering office, mine).
The signed engineering quality inspection record is used as the basis.
4.0.8 Duplicate inspections and damage inspections should be reduced. The damage inspection of shaft shaft engineering should not exceed 2; the damage of other shaft engineering
Inspection should not exceed 3 places.
4.0.9 Construction and inspection personnel shall use measuring instruments and testing instruments of the same accuracy level and regularly check in accordance with relevant regulations. common
For inspection tools, see the table of common inspection tools in Appendix F of this standard.
5 Tunneling works
5.1 General provisions
5.1.1 This chapter applies to the quality inspection and evaluation of tunneling engineering in alluvium and bedrock.
5.1.2 The main indicators and requirements of this chapter are based on the "Code for Construction and Acceptance of Mine Roadway Engineering" and "Technical Specifications for Bolt Shotcrete Support"
Fan "and" Quality Inspection and Evaluation Standards for Construction Engineering ".
5.2 Alluvial excavation project
5.2.1 This section is applicable to excavation and open channel excavation in alluvium (including frozen and concrete curtain alluvium) in vertical, inclined and flat shafts.
Method for the quality inspection and evaluation of the tunneling project.
(I) Guaranteed items
5.2.2 The excavation of alluvium in vertical shafts, inclined shafts and flat concrete and its temporary support must comply with the relevant provisions of the construction organization design and operation regulations.
Inspection method. According to the relevant provisions of design and operation regulations, spot check construction records or field inspections.
(II) Basic items
5.2.3 The deviation of alluvium excavation specifications shall meet the requirements in Table 5.2.3.
The inspection quantity shall be selected according to the regulations in Table A.2. Of Appendix A.
Inspection method Hang the line ruler, or spot check the construction inspection records.
Table 5.2.3 Alluvial excavation specifications deviation
5.2.4 When the open well is used to excavate the part of the inclined well head and flat head, the allowable deviation of the outline size of the open well and the inspection method shall conform to the table
5.2.4 Provisions.
5.3 Bedrock excavation project
5.3.1 This section applies to the wellway engineering and equipment foundations of the bedrock (including coal seams, ore layers, frozen layers and hard alluviums) that are constructed by drilling and blasting.
Quality inspection and evaluation of trenches (grooves) and roadway engineering using roadheaders.
(I) Guaranteed items
5.3.2 The bedrock blasting method must use smooth blasting, complete blasting charts, and reasonable selection of blasting parameters. Construction of smooth blasting
Cooperative industry regulations.
The inspection method is to check the construction records or field inspections according to the specifications and operating rules.
5.3.3 The temporary support for the excavation of bedrock must comply with the requirements of the operation regulations.
The inspection method is to check the construction records or spot inspections in accordance with the operating procedures.
(II) Basic items
5.3.4 The deviation of the common method bedrock excavation specifications shall meet the requirements in Table 5.3.4.
5.3.5 The deviation of the excavation specifications of soft rocks (including broken zones) shall meet the following requirements.
Pass. not less than the width and height of the designed roadway
Excellent. not less than the designed width and height of the roadway, over-digging should meet the qualified deviation of Table 5.3.4.
Inspection quantity. Checkpoints and measuring points are selected according to Table A.2 of Appendix A of this standard.
Inspection method. Hang the ruler or spot check the construction inspection records.
5.3.6 The deviation of the slope of the roadway shall meet the following requirements.
5.3.7 The allowable deviation of the specifications for the equipment foundation excavation of the shaft wall (supporting ring) of the shaft, the trench of the roadway (including the pipeline trench), and the chamber shall conform to the table
5.3.7.
5.4 Excavation of Nude Well Lane
5.4.1 This section is applicable to the quality inspection and evaluation of various well and roadway excavation projects without support.
(I) Guaranteed items
5.4.2 The bare pit tunnel must adopt the smooth blasting method, the blasting chart is complete, and the blasting parameter selection is reasonable. Smooth blasting construction
Should comply with the provisions of the operating procedures.
Inspection method. spot check construction records or field inspections according to specifications and blasting charts.
(II) Basic items
5.4.3 The deviation of the excavation specifications of the naked well and lane engineering shall meet the requirements of Table 5.4.3.
5.4.4 The deviation of the excavation slope of a naked well shall meet the following requirements.
5.4.5 The eye mark rate of the surrounding blasted eyes in the tunneling of naked roadways shall not be less than 60%.
Inspection quantity. Select inspection points according to the regulations in Table A.2.
Inspection method. actual measurement or random inspection of construction inspection records
5.5 Patio and slipway excavation works
5.5.1 This section is applicable to the quality inspection and evaluation of the excavation engineering of the patio and slip well bedrocks for the drilling, hanging and climbing methods.
(I) Guaranteed items
5.5.2 The excavation of the patio and slide shaft must ensure that the upper and lower mouth positions meet the design requirements. Inspection method. check the patio and slip well against the design
Measured position of the upper and lower mouth.
5.5.3 The operation procedures of the patio and slip shaft must comply with the requirements of the operating regulations.The reverse rig, hanging tank, climbing tank, etc. used must be guaranteed
Good working conditions.
Inspection method. Check the equipment factory certificate and operation and maintenance records according to the operating procedures, and conduct on-site inspection.
(Ⅲ) Basic items
5.5.4 The deviation of the excavation radius of the patio and slide shaft shall meet the requirements in Table 5.5.4.
6 Concrete and reinforced concrete engineering
6.1 General
6.1.1 This chapter applies to the quality inspection and evaluation of formwork (including tires), steel bars, concrete support engineering and other concrete engineering in well and road engineering.
6.1.2 The main indicators and requirements of this chapter are put forward in accordance with the provisions of the Code for Construction and Acceptance of Concrete Structure Engineering.
6.2 Formwork Engineering
6.2.1 This section applies to the assembly of formwork (including flat tires) for concrete, reinforced concrete support and block support works in shafts and lanes, and other concrete
Quality inspection and evaluation of formwork assembly work in civil engineering.
(I) Guaranteed items
6.2.2 The materials, structures, specifications, and strengths of the various templates and tires must meet the requirements of the design, operating regulations, and relevant specifications.
Inspection method. All inspections shall be carried out according to the design, regulations, and specifications. For the overall movable steel template and sliding template, check the factory
Certification and instructions, pre-assembly on the ground, and in accordance with the relevant specifications of the "Combined Steel Formwork Technical Specifications" and "Hydraulic Sliding Formwork Construction Technical Specifications"
Final acceptance. After the re-used template is overhauled and reshaped, it is inspected according to the above inspection methods.
6.2.3 The template assembly and flat tire erection must be firm and reliable, and its pillars must be supported on hard ground or a pad.
Inspection method. On-site inspection.
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