{"id":219105,"date":"2024-10-19T14:12:59","date_gmt":"2024-10-19T14:12:59","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-8006-22011a12017\/"},"modified":"2024-10-25T07:31:08","modified_gmt":"2024-10-25T07:31:08","slug":"bs-8006-22011a12017","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-8006-22011a12017\/","title":{"rendered":"BS 8006-2:2011+A1:2017"},"content":{"rendered":"

This part of BS 8006 gives recommendations and guidance for stabilizing soil slopes and faces using soil nails. Other methods of stabilization using reinforced soil methods are given in BS 8006\u20111:2010 and both parts might be needed for complex structures.<\/p>\n

Additional considerations might be required for unusually loaded or high soil nailed slopes, or where they interface with other structures.<\/p>\n

Whilst BS EN 1997\u20111:2004 specifically excludes soil nailing, this standard is intended to harmonize the design approach of soil nailing with other geotechnical structures designed using BS EN 1997\u20111:2004.<\/p>\n

The principal purpose of this standard is to provide design guidance, however, where knowledge of construction methodology is required for design purposes then appropriate paragraphs have been included. Construction guidance is given in execution standard BS EN 14490:2010. At the time of preparation of this standard, CEN Technical Committee TC341 is drafting a standard covering the testing of soil nails.<\/p>\n

Structures and processes that are similar to soil nailing but not addressed in the standard are described in 2.3.6<\/b>.<\/p>\n

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PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
6<\/td>\nForeword <\/td>\n<\/tr>\n
9<\/td>\nSection 1: General
1.1 Scope
1.2 Normative references <\/td>\n<\/tr>\n
10<\/td>\n1.3 Terms, definitions and symbols
Figure 1 \u2014 Terms used in this standard <\/td>\n<\/tr>\n
16<\/td>\nSection 2: Soil nailing applications and construction considerations
2.1 General
2.2 Description of typical soil nail element components <\/td>\n<\/tr>\n
17<\/td>\nFigure 2 \u2014 Possible components of soil nail system, pre-bored and grouted, shown with rigid facing
2.3 Typical applications <\/td>\n<\/tr>\n
18<\/td>\nFigure 3 \u2014 Typical soil nailing applications (new cut and vertical cutting)
Figure 4 \u2014 Soil nail placement to preserve existing vegetation <\/td>\n<\/tr>\n
19<\/td>\nFigure 5 \u2014 Example of soil nailing of an existing retaining structure <\/td>\n<\/tr>\n
20<\/td>\nFigure 6 \u2014 Example of soil nailing of an embankment
2.4 Construction design considerations <\/td>\n<\/tr>\n
21<\/td>\nFigure 7 \u2014 Bulk excavation and requirement to check overall stability <\/td>\n<\/tr>\n
22<\/td>\nFigure 8 \u2014 Excavation tolerances <\/td>\n<\/tr>\n
25<\/td>\nSection 3: Suitability of ground and groundwater conditions
3.1 General
3.2 Understanding the site geology <\/td>\n<\/tr>\n
26<\/td>\n3.3 General requirements for suitability of soils and rocks for soil nailing
3.4 Suitability of cohesive soils for soil nailing <\/td>\n<\/tr>\n
27<\/td>\nTable 1 \u2014 Summary of ground conditions best suited and less well suited to soil nailing <\/td>\n<\/tr>\n
29<\/td>\nFigure 9 \u2014 Examples of the effect of pre-existing shear surfaces on soil-nailed structures <\/td>\n<\/tr>\n
30<\/td>\nFigure 10 \u2014 Problems caused by granular material in glacial till <\/td>\n<\/tr>\n
31<\/td>\n3.5 Suitability of granular soils for soil nailing <\/td>\n<\/tr>\n
32<\/td>\n3.6 Suitability of weak rocks for soil nailing
3.7 Suitability of fill for soil nailing <\/td>\n<\/tr>\n
33<\/td>\nFigure 11 \u2014 Adverse effects of jointing and bedding on cut slopes in weak or weathered rock <\/td>\n<\/tr>\n
35<\/td>\n3.8 Effects of groundwater on soil nailing <\/td>\n<\/tr>\n
36<\/td>\nTable 2 \u2014 Principal types and suitability for soil nailing of non-engineered fill <\/td>\n<\/tr>\n
38<\/td>\nFigure 12 \u2014 Effect of groundwater on wall facing
3.9 Effects of underlying geological features on soil nailing <\/td>\n<\/tr>\n
39<\/td>\n3.10 Site investigation
3.11 Soil-nailing related site investigation \u2014 Field trials
3.12 Soil-nailing related site investigation \u2014 Chemical testing <\/td>\n<\/tr>\n
40<\/td>\n3.13 Preliminary assessment of degradation risk <\/td>\n<\/tr>\n
41<\/td>\nTable 3 \u2014 Typical corrosion rates for uncoated steel in undisturbed ground conditions
3.14 Detailed assessment of degradation risk for buried components
3.15 Detailed assessment of degradation risk for exposed components and surfaces <\/td>\n<\/tr>\n
42<\/td>\nTable 4 \u2014 Description of typical atmospheric environments related to the estimation of corrosivity categories (Copy of Table C.1 from BS EN ISO 9223:2012 [15]) <\/td>\n<\/tr>\n
44<\/td>\nSection 4: Basis for design
4.1 Design method <\/td>\n<\/tr>\n
45<\/td>\nFigure 13 \u2014 Typical dimensions of soil nailing applications based on slope <\/td>\n<\/tr>\n
46<\/td>\nFigure 14 \u2014 Relevant modes of ultimate and serviceability limit states <\/td>\n<\/tr>\n
47<\/td>\nFigure 15 \u2014 Geometry and dimensions of a soil nailed slope <\/td>\n<\/tr>\n
48<\/td>\nTable 5 \u2014 Partial factors for soil nail design <\/td>\n<\/tr>\n
49<\/td>\n4.2 Analysis of stability <\/td>\n<\/tr>\n
50<\/td>\nFigure 16 \u2014 Ultimate limit state modes of failure <\/td>\n<\/tr>\n
51<\/td>\nFigure 17 \u2014 Slip circle method of slices <\/td>\n<\/tr>\n
53<\/td>\nFigure 18 \u2014 Methods of resolving nail force and degree of conservatism <\/td>\n<\/tr>\n
54<\/td>\nFigure 19 \u2014 Two-part wedge <\/td>\n<\/tr>\n
57<\/td>\n4.3 Soil nail pullout resistance
Figure 20 \u2014 Mobilization of bond stress as a function of relative soil-nail movement <\/td>\n<\/tr>\n
58<\/td>\nFigure 21 \u2014 Limiting nail strength envelope <\/td>\n<\/tr>\n
60<\/td>\nFigure 22 \u2014 Effect of far field stress on mobilized bond stress
Figure 23 \u2014 Modification of interface stresses due to far field stress changes <\/td>\n<\/tr>\n
61<\/td>\nFigure 24 \u2014 Relationships between radial friction normalized by vertical effective stress for a range of characteristic friction angle <\/td>\n<\/tr>\n
62<\/td>\nFigure 25 \u2014 Modification of local interface stresses due to nail installation effects <\/td>\n<\/tr>\n
63<\/td>\nFigure 26 \u2014 Effect of test length and axial stiffness on measured average bond <\/td>\n<\/tr>\n
66<\/td>\nTable 6 \u2014 Ultimate limit state approach to deriving design values
4.5 Soil nail element design <\/td>\n<\/tr>\n
67<\/td>\n4.6 Influence of durability and degradation on the choice of nail tendon <\/td>\n<\/tr>\n
70<\/td>\nTable 7 \u2014 Types of stainless steel
Table 8 \u2014 Types of glass fibre (after Littlejohn [30]) <\/td>\n<\/tr>\n
74<\/td>\nFigure 27 \u2014 A 25 mm diameter steel tendon with a 40 mm diameter impermeable duct <\/td>\n<\/tr>\n
75<\/td>\nFigure 28 \u2014 A centralizer to provide cover to a coated nail to reduce the risk of damage to the coating during installation
Figure 29 \u2014 A stainless steel self-drilling tendon complete with drill bit, hollow tendon, coupler and head plate <\/td>\n<\/tr>\n
78<\/td>\nTable 9 \u2014 Summary of recommendations for different soil nailing systems in relation to different categories of risk
4.7 Design of facing <\/td>\n<\/tr>\n
83<\/td>\nFigure 30 \u2014 Calculation of required nail plate size for a given design nail force <\/td>\n<\/tr>\n
84<\/td>\nFigure 31 \u2014 Calculation of design loading acting on the rear of hard facing <\/td>\n<\/tr>\n
86<\/td>\nFigure 32 \u2014 Calculation of design loading acting on a simple flexible facing <\/td>\n<\/tr>\n
87<\/td>\nFigure 33 \u2014 Calculation of tension and deformation in flexible facing for a given design loading <\/td>\n<\/tr>\n
89<\/td>\nFigure 34 \u2014 Requirements of a complex flexible facing
4.8 Drainage <\/td>\n<\/tr>\n
90<\/td>\nFigure 35 \u2014 Typical types of drainage for soil nailing <\/td>\n<\/tr>\n
91<\/td>\nFigure 36 \u2014 Typical surface water interceptor detail above a steep soil-nailed slope
Figure 37 \u2014 Example of a raking drain in a steep soil-nailed slope <\/td>\n<\/tr>\n
92<\/td>\nFigure 38 \u2014 Typical detail for a weep hole in a steep soil-nailed wall <\/td>\n<\/tr>\n
93<\/td>\nSection 5: Serviceability and movements
5.1 Serviceability limit state <\/td>\n<\/tr>\n
94<\/td>\n5.2 Serviceability limit state analysis
5.3 Estimation of movement \u2014 General
5.4 Use of empirical relationships <\/td>\n<\/tr>\n
95<\/td>\nTable 10 \u2014 Displacements at the top of steep soil nailed structures <\/td>\n<\/tr>\n
96<\/td>\n5.5 Numerical modelling
5.6 Case studies <\/td>\n<\/tr>\n
97<\/td>\nSection 6: Design verification
6.1 Testing <\/td>\n<\/tr>\n
98<\/td>\nTable 11 \u2014 Type of soil nail test (from BS EN 14490:2010)
Table 12 \u2014 Recommended test frequency (from BS EN 14490:2010) <\/td>\n<\/tr>\n
99<\/td>\n6.2 Nail pullout resistance <\/td>\n<\/tr>\n
100<\/td>\nTable 13 \u2014 Criteria for static loading of soil nails <\/td>\n<\/tr>\n
101<\/td>\nFigure 39 \u2014 Schematic layout of the nail load test system <\/td>\n<\/tr>\n
102<\/td>\nTable 14 \u2014 Values of correlation factor <\/td>\n<\/tr>\n
103<\/td>\n6.3 Materials testing
6.4 Other tests
6.5 Monitoring
6.6 Monitoring during construction
6.7 Long-term or post-construction monitoring <\/td>\n<\/tr>\n
104<\/td>\nSection 7: Maintenance <\/td>\n<\/tr>\n
105<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Code of practice for strengthened\/reinforced soils – Soil nail design<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2017<\/td>\n108<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":219108,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-219105","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-bsi","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/219105","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/219108"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=219105"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=219105"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=219105"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}