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DZ/T 0175-2014 English PDF (DZT0175-2014)

DZ/T 0175-2014 English PDF (DZT0175-2014)

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DZ/T 0175-2014: Specifications for geological mapping of coal

This Standard stipulates the technical requirements of coalfield geological mapping work (1:50000 1:25000 1:10000 1:5000), such as working level requirements, data collection and geological survey, design formulation and review, work content and precision requirements, original catalog and data organization, field quality inspection and acceptance, report formulation and submission, etc.
DZ/T 0175-2014
GEOLOGICAL MINERAL INDUSTRY STANDARD
OF THE PEOPLE REPUBLIC OF CHINA
ICS 07.060
A 44
Replacing DZ/T 0175-1997
Specifications for Geological Mapping of Coal
(1:50000 1:25000 1:10000 1:5000)
ISSUED ON: SEPTEMBER 28, 2014
IMPLEMENTED ON: DECEMBER 1, 2014
Issued by: Ministry of Land and Resources of the PEOPLE Republic of
China
Table of Contents
Foreword ... 3
Introduction ... 5
1 Scope ... 6
2 Normative References ... 6
3 General Rules ... 7
4 Requirements of Working Level ... 8
5 Data Collection and Geological Reconnaissance ... 11
6 Design Formulation and Review ... 12
7 Work Content and Precision Requirement ... 13
8 Original Catalog and Data Organization ... 24
9 Field Quality Inspection and Acceptance Inspection ... 25
10 Report Formulation and Submission ... 26
Appendix A (normative) Outline of Coalfield Geological Mapping Design
Formulation ... 28
Appendix B (informative) Original Catalog Table ... 30
Appendix C (normative) Field Acceptance Inspection Content and Quality
Assessment ... 37
Appendix D (normative) Outline of Coalfield Geological Mapping Report
Formulation ... 39
Appendix E (normative) Report Review Content and Quality Assessment ... 41 Bibliography ... 43
Specifications for Geological Mapping of Coal
(1:50000 1:25000 1:10000 1:5000)
1 Scope
This Standard stipulates the technical requirements of coalfield geological mapping work (1:50000 1:25000 1:10000 1:5000), such as working level requirements, data collection and geological survey, design formulation and review, work content and precision requirements, original catalog and data organization, field quality inspection and acceptance, report formulation and submission, etc.
This Standard is applicable to coalfield geological mapping (1:50000 1:25000 1:10000 1:5000) in the various stages of coal resource survey and coalfield geological survey in exposed and semi-exposed bedrock areas. It is the main basis for the design, construction, quality control, achievement submission and acceptance review.
2 Normative References
The following documents are indispensable to the application of this document. In terms of references with a specified date, only versions with a specified date are applicable to this document. In terms of references without a specified date, the latest version (including all the modifications) is applicable to this document. GB/T 18341 Specifications of Survey for Geological and Mineral Resources Exploration;
GB/T 25283 Specification for Comprehensive Exploration and Evaluation of Mineral Resources;
DZ/T 0078 Procedures for Original Geological Record of Solid Mineral Exploration; DZ/T 0079 Solid Mineral Exploration Report Requirements for Comprehensive Arrangement and Study of Geological Data;
DZ/T 0080 Specifications for Geophysical Logging of Coal;
DZ 0141 Probing Specification of Geological Exploration;
DZ/T 0215 Specifications for Coal, Peat Exploration;
MT/T 1042 Quality Standard of Drill for Coal Geology Exploration;
e) Prospecting stage 1:10000 or 1:5000.
4 Requirements of Working Level
4.1 1:50000 Coalfield Geological Mapping
4.1.1 Preliminarily identify stratigraphic sequence. In accordance with the requirement of multiple stratigraphic division, divide rock stratigraphic unit and chronostratigraphic unit. If conditions allow, divide bio-stratigraphic unit. Mapping unit shall be divided into ?€?group?€?, if necessary and if possible, key seams1 shall be divided into ?€?section?€?. The quaternary system shall be divided in accordance with the actual demand. 4.1.2 Preliminarily identify coal-bearing stratum era; understand the thickness and distribution range of coal-bearing stratum; understand the number and the thickness of coal seam. Preliminarily establish regional contrast signs. If conditions allow, conduct preliminary contrast of the main coal seams.
4.1.3 Preliminarily understand geological structure. Preliminarily identify the ground location and the nature of fault with the stratigraphic separation of more than 100 m, or, with the exposed length of more than 1,000 m. Preliminarily identify the ground location of pleated crankshaft with the length of more than 2,000 m.
4.1.4 Preliminarily understand the distribution of various types of production mines and old kilns.
4.1.5 Preliminarily understand the type and the quality of coal.
4.1.6 Preliminarily understand the condition of other mineral products. 4.1.7 Preliminarily understand the type, nature and basic distribution range of magmatic rocks.
4.1.8 Preliminarily understand the features of surface hydrogeology, engineering geology, environmental geology and disaster geology.
4.2 1:25000 Coalfield Geological Mapping
4.2.1 Identify stratigraphic sequence. In accordance with the requirement of multiple stratigraphic division, specifically divide stratum; the unit of geological mapping shall be divided into ?€?group?€?. If conditions allow, key seams shall be divided into ?€?section?€?. The quaternary system shall be divided in accordance with the actual demand. 4.2.2 Identify coal-bearing stratum era; specifically understand the thickness and distribution range of coal-bearing stratum; understand the number, position, thickness, structure and possible variation of main coal seams. Establish whole-region coal seam 1 Contain coal stratum, overlaid key seam and other seams that are worth paying attention to. rocks. Preliminary understand the influence of magmatic rocks on coal seams and coal quality.
4.3.8 Understand the features of surface hydrogeology, engineering geology, environmental geology and disaster geology. Preliminarily identify the location of flooding line of main rivers.
4.4 1:5000 Coalfield Geological Mapping
4.4.1 In accordance with the requirement of multiple stratigraphic division, specifically divide the stratum. The unit of geological mapping shall be divided into ?€?group?€?; key seams shall be divided into ?€?section?€? or ?€?sub-section?€? (or ?€?seam?€?, ?€?belt?€?). Other stratums may be divided in accordance with the actual demand.
4.4.2 Specifically study coal-rock seam contrast; preliminary identify the number, position, thickness, structure and surface variation rule of exploitable coal seams. Establish contrast signs (including regional signs) of various coal seams; whole- regional exploitable coal seams shall be clearly contrasted; mostly exploitable coal seams and partially exploitable coal seams shall be basically contrasted. Estimate the main exploitable coal seams of resources/reserves. In principle, the exposure site of coal seam shall be actually measured. If conditions allow, the main marker seam shall be actually measured.
4.4.3 Preliminary identify the features of geological structure. Preliminarily identify the ground location and the nature of fault with the stratigraphic separation that equals to or is more than 20 m (15 m ~ 10 m under good geological conditions), and, pleated crankshaft with the exposed length of more than 100 m. Fault whose stratigraphic separation is less than 20 m (10 m under good geological conditions) in work shall be added to geological map; try to identify its ground location and nature. In terms of small structures (joints and cracks, etc.), conduct observation and description. 4.4.4 Specifically survey the distribution and exploitation of various types of production mines and old kilns; understand the range and water accumulation of old worked-out kilns.
4.4.5 Specifically survey the coal quality features and surface variation of exploitable coal seams. Preliminary determine the type of coal.
4.4.6 Specifically understand the surface reserves of other mineral products. 4.4.7 Understand the type, nature, occurrence and distribution range of magmatic rocks. Preliminary understand the influence of magmatic rocks on coal seams and coal quality.
4.4.8 Understand the features of surface hydrogeology, engineering geology, environmental geology and disaster geology. Identify the location of flooding line of main rivers. Preliminarily identify the type, location and range of disaster geology. geological interpretable degree.
5.2.6 Preliminarily determine the type and location of mountain engineering; estimate the amount of work in construction.
6 Design Formulation and Review
6.1 Design Formulation
6.1.1 Coalfield geological mapping design shall be formulated based on the collected previous data and geological reconnaissance, and in accordance with work tasks determined in project task book or project contract book, and the outline of coalfield geological mapping design formulation (Appendix A). It shall be requested in the design that targets and tasks are clarified, technical routes and methods are feasible, engineering layout and appropriation budget are reasonable, and key points are emphasized.
6.1.2 In coalfield geological mapping design, preliminarily establish the stratigraphic sequence; preliminarily determine the organization and the method of geological mapping, the route of geological observation, and the arrangement of observation points.
6.1.3 After the design of coalfield geological mapping is completed by the project construction organization, it shall pass the initial review conducted by the project undertaking organization, which shall issue written opinion on the initial review. 6.2 Design Review
6.2.1 The design review of coalfield geological mapping shall be completed by a design review expert team organized by the project management organization or the funder (or the funder?€?s principal). In addition, written opinion on the design approval shall be issued.
6.2.2 The design review of coalfield geological mapping shall be conducted in accordance with relevant national and industrial standards, and project task book or project contract book.
6.2.3 After the written opinion on the design approval of coalfield geological mapping is issued, the project party may implement it. During the implementation of project, when there are large changes in the geological condition, project undertaking organization shall propose a design alternation application in time, and after receiving the design approval organization?€?s review, the project may be implemented. In terms of relatively small design adjustment, the design approval organization may authorize the project construction organization to independently make adjustment. However, this shall be reported to the design approval organization for reference.
marker seam, important fossil seam, mineral seam, interlayers with special components and causes of formation, regardless of the thickness, shall all be independently stratified; try to directly measure the true thickness. If necessary, zoom in to express it on the map. Trunk geological section shall systematically adopt rock, minerals and fossil samples for indoor identification.
7.1.3.4 The description of coal mainly includes the physical properties of coal (color, gloss, striation, stiffness, brittleness, fracture, breakage and block, etc.); the structures of coal (uniform structure, strip structure, lineation structure, leaf-shaped structure and granular structure, etc.); weathering of shallow coal seam; oxidization features and rough weathering and oxidization depth; components, shape, size and distribution of coal seam concretion and inclusion, etc. In terms of coal seam around intrusive rocks, coal quality variation features and zoning features shall also be described. In addition, the range of influence of intrusive rocks on coal seam and coal quality shall also be divided.
7.2 Mountain Engineering
7.2.1 General requirements of mountain engineering application
7.2.1.1 Coalfield geological mapping shall adopt mountain engineering to understand the geological condition of bedrock under the cover layer. Through the exposure of bedrock, geological information like geological boundary, stratigraphic sequence, lithology, geological conformation and concealed coal seam exposure can be obtained; geological catalog can be completed. Thus, the quality of coalfield geological mapping can be enhanced.
7.2.1.2 Mountain engineering shall be reasonably selected in accordance with the nature and thickness of the cover layer, the construction conditions and environmental protection requirements. Generally speaking, mountain engineering shall be focused on stripping, trenching, shallow well and shallow hole. Unless it is really necessary, level workings, inclined shaft, vertical shaft and deep hole shall not be used. 7.2.1.3 The depth of mountain engineering should reach 0.5 m ~ 2 m in bedrock. When sampling is not conducted, the satisfaction with geological catalog shall be considered as the principle. When sampling is conducted, the demand for sampling shall be satisfied.
7.2.1.4 Mountain engineering shall be reasonably arranged; the key points shall be emphasized. The settlement of geological problems shall be the principle. Trenching, shallow shaft and shallow hole shall be accepted as individual engineering grading item.
7.2.2 Stripping (or Luoyang shovel drilling)
Stripping (or Luoyang shovel drilling) is mainly applied to the exposure of the nature and location of bedrock. It shall merely be considered as geological observation point 7.3.4 When the safety of mines to be constructed will be affected, geophysical exploration or other effective means may be adopted, so as to understand the worked- out area and water accumulation of old kilns.
7.4 Coal Quality Sampling and Analytical Test
7.4.1 The various scales of coalfield geological mapping shall all comply with the requirements of different stages of coal quality assessment in DZ/T 0215; utilize mountain engineering, natural exposure and production mines, match with corresponding reconnaissance stage and conduct coal quality sampling. The type and quantity of sampling shall be comprehensively arranged, well-connected and reasonably allocated.
7.4.2 In accordance with the physical property, structure and macroscopic coal-rock components of coal, determine the macroscopic coal-rock type of coal; preliminarily determine the type of coal. In addition, conduct coal quality analytical test on the coal sample, so as to understand its chemical features.
7.5 Other Mineral Products and Other Work
7.5.1 The various scales of coalfield geological mapping shall all comply with the requirements of different stages of beneficial minerals evaluation in DZ/T 0215. In accordance with relevant stipulations in GB/T 25283, utilize mountain engineering, natural exposure and production mines, gain certain understanding of other mineral products in the area. If necessary, a certain quantity of mountain engineering may be specially arranged.
7.5.2 The various scales of coalfield geological mapping shall all pay attention to the collection of hydrogeological data, engineering geological data and environmental geological data. Please refer to Table B.3 for the format of hydrogeological survey record table.
7.5.3 The various scales of coalfield geological mapping shall all observe and record geological phenomena like landslide, collapse and subsidence; control their ground location. If conditions allow, environmental geological data that is severely detrimental to production and PEOPLE livelihood shall be collected. Typical geological phenomena and geographical landscapes that have ornamental value or important scientific meaning in the area shall be surveyed. Please refer to Table B.4 for the format of disaster geological (hidden danger) survey table.
7.6 Geological Mapping
7.6.1 Basic requirements of geological mapping
7.6.1.1 The geographic base map adopted for coalfield geological mapping shall be mainly focused on the latest topographic maps whose scale equals to, or, is larger than the scale of geological mapping. Topographic maps cannot be zoomed in. In terms of workings, inclined shaft, vertical shaft, production mine and old kiln opening shall comply with GB/T 18341. Measurement accuracy shall reach the requirement of measurement site in the same scale of topographic survey. The measurement accuracy of trench endpoint and field-acquired geological section endpoint may be stipulated in the design in accordance with the actual demand.
7.7.3 When global satellite locator handset is applied to the determination of the coordinates of geological observation points, 1:50000 and 1:25000 coalfield geological mapping may use WGS-84 coordinate system for measurement. After conversion, the result of Cartesian coordinates may be obtained. 1:10000 and 1:5000 coalfield geological mapping shall directly use Cartesian coordinate system for measurement. Before using the coordinate system, calibrate it; the coordinate system adopted in measurement shall be consistent with the coordinate system adopted in calibration. 8 Original Catalog and Data Organization
8.1 Original Catalog
8.1.1 The various original catalogs shall all be completed on the site in accordance with the stipulated content and format. They shall be timely, accurate, distinct, comprehensive, and coincident with standardized requirements. The actual observation and inferred interpretation data shall be indicated in the catalog. All the geological observation points, prospecting engineering and samples shall be uniformly numbered.
8.1.2 The organization of field original catalog of the day shall be completed in that day. The main content shall include: inspection of field record, sketch map and sample; fair drawing of actual material map, and topographical and geological sketch (or remote sensing geological sketch), etc. Implement ?€?consistency in five?€?: field observation (interpretation) record, image annotation, physical sample, field mark and geological map. In terms of problems found in the inspection, verify them on the site. In terms of existing errors, correct them based on the fact.
8.1.3 The scale of original drawings shall be under the principle of being able to distinctly reflect geological phenomena. The scale of the same type of drawings shall be consistent. Generally speaking, the horizontal scale and vertical scale of drawings shall be identical.
8.2 Data Organization
8.2.1 In accordance with relevant stipulations in DZ/T 0079, conduct comprehensive organization and study of geological data. Complete ?€?three simultaneous tasks?€?, namely, construction; organization, analysis and study; alternation.
8.2.2 In accordance with work progress, complete staged data organization. The main content shall include: formulation of actual material map, topographical geological map 9.2 Quality Acceptance Inspection
9.2.1 Project management organization or the funder (or the funder?€?s principal) shall conduct field quality acceptance inspection in accordance with technical design, project contract and relevant technical standards; sign a written opinion on the acceptance inspection.
9.2.2 Field quality acceptance inspection shall be scored and graded in accordance with Appendix C. The evaluation content shall be divided into 4 items, namely, the degree of geological research; the degree of control; mathematical precision; data organization and catalog. When the score of an individual item is zero, or, when the score of a major item is less than 60%, certain content shall be supplemented, then, re-evaluated. In accordance with the total score of a major item, quality grade can be divided into 4 grades, namely, ?€?excellent?€?, ?€?good?€?, ?€?qualified?€? and ?€?disqualified?€?. When the evaluation result is ?€?qualified?€? or above qualified, finish field work, then, tr...

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