EN 12063-1999 en Execution of Special Geotechnical Work - Sheet-Pile Walls《特殊土工作业的施工 薄板 桩墙》.pdf

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1、ST9-BSI BS EN 120b3-ENGL 1979 H lb24bbi 07872LI2 BRITISH STANDARD Execution of special geotechnical work - Sheet pile walls ICs 93.020 221 rn BS EN 12063:1999 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW STDWBSI BS EN L20b3-ENGC been prepared under the Committee for Buildin

2、g and Civil Engineering, was published under the authority of the Standards Committee and comes into effect on 15 August 1999 direction of the Sector AmdNo. O BSI 08-1999 ISBN O 680 32288 2 BS EN 12063:1999 Date Comments National foreword This British Standard is the English language version of EN 1

3、2063: 1999. The UK participation in its preparation was entrusted to Technical Committee B/526, Geotechnics, which has the responsibility to: - aid enquirers to understand the text; - present to the responsible European committee any enquiries on the - monitor related international and European deve

4、lopments and promulgate interpretation, or proposals for change, and keep the UK interests informed; them in the UK A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publ

5、ications referred to in this document may be found in the BSI Standards Catalogue under the section entitled ?International Standards Correspondence Index?, or by using the ?Find? facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include aii the necessary pro

6、visions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside nont cover, the EN title page, pages 2 to 5

7、5 and a back cover. STDeBSI BS EN 120h3-ENGL L971 D ZL29bb9 0787249 0Tq EUROPEAN STANDARD EN 12063 NORME EUR0PEE”E EuRopAIscHE NOW February 1999 ICs 93.020 Descriptors: soils, construction, structures, sheet pilings, definitions, informations, wood, steels, welding, design, setting-up conditions, th

8、rust boring, anchorages, tests, inspection English version Execution of special geotechnical work- Sheet pile walls Excution de travaux gotechniques spciaux - Rideaux de palplanches Ausfuhning von besonderen geotechnhchen Arbeiten - (Spezialtiefbau) - Spundwandkonstmkonen This European Standard was

9、approved by CEN on 9 January 1999. CEN members are bound to comply with the CENKENELEC Intend Regulations which stipulate the conditions for giving this European Standard the satus of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national

10、 standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notiie

11、d to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Fnlmd, bce, Gem Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kin

12、gdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fur Normung Central Secretariat: rue de Stassart 36, B-1060 Brussels O 1999 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12063:1

13、999 E STD.BS1 BS EN 220b3-ENGL 1777 1iLZh07 0787Zq5 T30 Page 2 EN 12063:1999 Foreword This European Standard has been prepared by khnical Committee CENAC 288, Execution of special geotechnical works, the Secretariat of which is held by AFNOR. This European Standard shall be given the status of a nat

14、ional standard, either by publication of an identical text or by endorsement, at the latest by August 1999, and conflicting national standards shall be withdrawn at the latest by August 1999. According ta the CEN/CENELEC Internai Regulations, the national standards organizations of the following cou

15、ntries are bound to implement this European Standard Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norwax Portugal, Spain, Sweden, Switzerland and the United Kingdom. The present standard expands on design oniy when nec

16、essary, but provides full coverage of the execution and supervision requirements for sheet pile wail stnictures. It has been drafted on the basis of exis- Codes of Practice and general available expertise which can be found in specialized literature. contents Foreword 1 2 3 4 4.1 4.2 5 5.1 5.2 6 6.1

17、 6.2 6.3 6.4 6.5 7 7.1 7.2 Scope Nonnative references Dennitions Information needed for the execution of sheet pile wah General Specific Site investigations Soils and rock investigation Driveabiiity of sheet piles Materials and products Steel sheet piles Timber sheet piles Other materials and produc

18、ts Corrosion protection for steel sheet piles and preservation of wooden sheet piles Sealin - level and position of fixed reference points at or near the construction site; - limitations concerning the access for equipment and materials; - location of ali services such as electrici, telephone, water

19、 and gas supply pipes and sewers; - geotechnical - composition and stratification of the ground and its variation across the site; - strength and deformation properties of the soil and rock iayers; - the possible presence of stones and boulders in the ground; - the possibility of cohesive soils adhe

20、ring to the piles when extracted (see 8.11); - hydrogeological data of the area in which the construction site will be situated; - specifications of the sheet pile walls, including all details such as type, profile, grade, protection and preservation systems and also whether any fixings of the inter

21、locks are required to ensure transmission of the longitudinal shear forces; - presence of sensitive buildings andor installations in the vicinity of the construction site; - restrictions concerning noise and vibrations; - restrictions concerning driving method and driving assistance; - restrictions

22、regarding the permeability of the sheet pile wall for water or other fluids, - various stages of the execution of the sheet pile wall structure required by the design; - in the case of waterfront structures; the water levels and their fluctuations (amplitude, frequency and the cause of the fluctuati

23、ons, e.g. discharge of a barrage, tide etc.); - data regarding possible soil contamination; - a list of any identified specific items to be investigated (see 4.2). 4.2 Specific 4.2.1 The following specific information shall be made available before the beginning of the works. - all specific design i

24、nformation which is important to the execution; - restrictions related to the presence, at or near the site, of ground anchors, cathodic protection devices and similaq - the history of the building site: presence of foundation remnants or other artificial elements in the ground. 4.2.2 Information ab

25、out the following matters should be made available before the beginning of the work - special aspects particular to the project, such as corrosion and abrasion problems; - comparable experience from works in the neighbourhood or from similar works carried out under similar conditions; - the conditio

26、n of nearby buildings, structures or installations and the nature and depth of their foundation; - data about adverse weather conditions, for example, wind conditions and frequency; - severe frost action in the ground, where this can lead to overstressing of the sheet pile wall. O BSI 08-1999 STDIBS

27、I BS EN L20b3-ENGL 1997 B Lb2Ybb7 0787252 170 I Page 9 EN lm1999 5 Site investigations 6.1 Soils and rock investigation When additional soils and rock data are required for the selection of driving methods, procedures, equipment, amdiary structures etc. or for checking the execution, the investigati

28、on shall comply with clause 3 6.2 Driveability of sheet piles 6.2.1 When driveability is investigaed, account shall be taken of any restrictions in the design regarding techniques to assist driving (for instance jetting or pre-augering). 6.2.2 When no comparable experience exists, it is recommended

29、that one or more driving tests are carried out before the sheet pile work commences. NOTE The driving data obtained from the test is used to improve the efficiency of the driving operations and to confirm the choice of the prole. It indicates if driving assistance is necessary and what the influence

30、 on soil properties and other important matters might be. A driving test can also indicate if it is possible to use rock dowels. Of ENV 1997-1:1994. 6 Materials and products 6.1 Steel sheet piles 6.1.1 New sheet piles shall comply with EN 102481:1995 and EN 102482, EN 10249-1:1995 and EN 10249-2:199

31、5 and EN 100791992. 6.1.2 Reused sheet piles shall, as a minimum, comply with the design specifications concerning type, size, nuaiity and - ENV 1992-1-1:1994, Eurocode 2 - Design of concrete structures - Part 1-1: Geneml ruh and rules for udings; - ENV 1993-1-1:1994, Eurocode 3 - Design of steel st

32、ructures -Part 1: Geneml rules and rules for bUildingS; - ENV 1WM: 1998, Eurocode 3 - Design of steel structures - Part 5: PiLing; - ENV 1997-1:1994, Eurocode 7 - Geotechnicd - soil conditions; - the deformation behaviour of the sheet piles. O BSI 08-1999 Page 10 EN 12063:1999 d d Legend design as b

33、uilt -_ a primary eiement c transversal tolerance b secondary element d longitudinal tolerance Figure 6 - Examples of tolerances for combined walls 7.3 Other structural elements 7.3.1 In addition to the sheet pile wall itself, the selection of the elements which are necessary for the sheet pile wall

34、 structure, such as anchorages, struts and walings, shall take account of adverse loading and site conitions. 7.3.2 Ground anchorages shall comply with prEN 1537. 7.4 Sequence of execution 7.4.1 The various stages of the works shall be established in accordance with the design. 7.4.2 The criteria fo

35、r progressing from one stage to the next shall be defined. As a minimum for each stage of the execution works, this involves the following: - the levels and tolerances for filling and excavation; - the levels and tolerances of the groundwater and the free water, - the characteristics of the material

36、s and the quality of the fil along both sides of the sheet pile wall and in front of the anchor piates; - the displacements of the sheet pile wall, as anticipated at the end of the various stages; - restrictions regarding surcharges. 7.6 Specific design considerations The following matters should be

37、 specified in the design if appropriate: - method of fjxing the interlocks, - method of attaching the connectors to the primary elements of a combined wall, ahg into consideration ?)able 15 of EN 102482:1995; - quality of the weldings; - method of cutting steel elements; - method to assist dnving an

38、d the depth to which it may be applied; - shape of rock shoe and other measures necessary to secure the toe of the sheet piles in the bed-rock - in soft clays, overlying bed-rock, the method of preventing the cay from squeezing through the gap between the pile toe and the bed-rock - quality of the b

39、ackfill or the method of placement thereof; - pre-stressing of the struts or anchorages in order to reduce displacements in the ground behind the sheet pile wall, - time restraints during critical execution sequences; - methods and levels of dewatering; - type, kind and method of coating steel eleme

40、nts and preserving wooden parts; - cathodic protection methods; - compatibiity of the interlock sealant and the coating materi* - special requirements regaring the permeability of the sheet pile wall, including performance criteria for materials, procedures and testing; - the method to secure the po

41、sition of the toe of sheet piles when close excavation in rock is carried out; - consequences of extracting the sheet piles on dacent buildings, installations and services, on settlements of the soil surface and on the creation of a link between soil layers with different groundwater regimes; - meas

42、urements needed to check settlements, displacements and vibrations. O BSI 08-1999 STD-BSI BS EN L2003-ENGL 1799 M Lb2LibbS 078725Li Tq3 D 8 Execution of sheet pile wall structures 8.1 General 8.1.1 The sequence of executing the sheet pile wall stnicture shall be carried out in accordance with 7.4. 8

43、.1.2 If the agreed sequence of the works cannot be maintained, a revision that meets the requirements of 7.4 shall be established in compliance with the design. 8.1.3 Each sheet pile should be referenced. 8.2 Site preparation 8.2.1 The site shall be prepared in such a way that operations can be carr

44、ied out safely and efficiently 8.2.2 The execution and use of auxhary structures - by using levelling techniques mark the position T on the element at the third points dong the length and at the lower end of the connectors as indicated in Figure 8; - check compliance with the following tolerances at

45、 the top end, the third points and the lower end of the connector: L = (rc,) / (4 f 10) mm; R = () / (4 f 10) D; L and R are measured along the outer circumference of the element; D, is the outside diameter of the primary element at the checked sections. O BSI 08-1999 STD-BSI BS EN 120b3-ENGL 1999 m

46、 lb29bb9 07872b9 992 Page 21 EN 1263:1999 1 Legend a top of the element and connectors b toe of the element c connector d toe of the connectors e third poins on the connectors 1 length of the connectors T top of the element as established by levelling P line connecting the centres of both connectors

47、 at top end of the element Figure 8 - Position of check-points and tolerances of welded connector on a tubular primary element 8.4.6 Electrodes shall be in accordance with EN 499:1994. 8.4.6 The metal deposited by welding shall, as a minimum, have the mechanical characteristics equivaient to those o

48、f the base material 8.4.7 Quaiity Steel (QS) according to EN 102481:1995 and steel grades S42oxxX and WOxxx according to EN 102141:1997, shall be welded using basic fdler metals with low hydrogen. The level of hydrogen in the deposited metal shall be I 10 mV100 g. 8.4.8 In order to prevent all risks

49、 of cracking, preheating temperatures shall take account of the steel carbon equivaient, the welding process and the type of joint. The temperature of a weld shall be 5 250 OC before the next welding pass is started Preheating shall extend for at least 75 mm on each side of the weld. NOTE Preheating temperatures for different thicknesses and steel es are given in Table B.3. 8.4.9 Special care shall be taken in order to ensure that the stresses and distortion due to the welding are minimized. 8.4.10 Welds of acceptance class D according to EN 2581F1992, sha