Convention, Volume 57 |
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Halaman xiv
... Manholes To eliminate unhealth- ful working conditions in underground systems , provision should be made for cleaning manholes at regular intervals , maintaining , if neces- sary , a regular inspection and cleaning division with ...
... Manholes To eliminate unhealth- ful working conditions in underground systems , provision should be made for cleaning manholes at regular intervals , maintaining , if neces- sary , a regular inspection and cleaning division with ...
Halaman 730
... manholes where obnoxious odors or other disagreeable conditions exist , an effort should be made to supply forced ventilation or adopt other expedients which will make the conditions in the manhole tolerable for the workmen . The ...
... manholes where obnoxious odors or other disagreeable conditions exist , an effort should be made to supply forced ventilation or adopt other expedients which will make the conditions in the manhole tolerable for the workmen . The ...
Halaman 757
... Manholes ( 43 ) Manholes and service boxes will be as shown on accom- panying plans , unless otherwise directed by the Inspecting Engineer . They are to be constructed of the best ..... ... cement . Concrete mixed over one hour , or ...
... Manholes ( 43 ) Manholes and service boxes will be as shown on accom- panying plans , unless otherwise directed by the Inspecting Engineer . They are to be constructed of the best ..... ... cement . Concrete mixed over one hour , or ...
Isi
INTRODUCTION | 3 |
SHUNT STANDARDIZATION DATA | 15 |
RECENT DEVELOPMENTS | 39 |
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