APPENDIX IV
R E C O R D S AND REPORTS
1.
RECORDS FOR PAYMENT. Records of quantities that are pay items
must be kept for meaningful administration of any contract. Of necessity
these records must be accurate, understandable, and sufficiently detailed
to justify their acceptance if at variance with data presented by the contrac-
t o r . Details are very important for a drilling and grouting operation. As
grouting progresses it should be continuously evaluated. Records that must
be kept of pay items should be expanded to log form so that decisions to
" s p l i t - s p a c e " or split-space only to a certain horizon, to decrease or in-
crease grouting pressures, to use generally thinner or thicker mixes, or
to make any of the many decisions that may be required can be based on case
histories of operations at the jobsite. Therefore, in addition to listing quan-
tities, when, where, and how the quantities were obtained should also be re-
c o r d e d . After completion of the grouting, there is very little surface evi-
dence to indicate the extent of grouting, and there is no way to determine
actual quantities if a running account is not available. A form listing all pay
items should be prepared for submittal to the project office on a daily or
shift basis. All quantities listed on this form should be taken from the de-
tailed records kept by inspectors in field notebooks. Notebooks should be
turned in as they are filled for preservation as part of the permanent project
records.
a . Drilling. It usually is not possible to have a full-time inspector as-
signed to each drilling unit on grout-hole drilling; but if more than one unit
is operating on the' same shift, a full-time drilling inspector should be
present. In any case the drilling should be inspected several times each
shift to obtain needed data and ensure compliance with the specifications.
The inspector should be available for the start of each new hole and at the
completion of any hole, zone, or stage. If the holes are inclined, he must
make sure that each new hole is started at the correct inclination and in the
right direction. He must make certain that all cuttings are washed out of
the hole at the completion of drilling and that the hole is then properly cap-
ped or plugged. For the records he must have hole number, location, ele-
vation, size, inclination data, driller's name, and the feet drilled for each
hole in which work was done on any date or shift. If pipe, zone, and size of
hole are pay items, quantities for each must be recorded. The records
should also show water losses and approximate formation contacts as de-
termined by the driller, if no core is recovered. The hole number and its
location, elevation, and inclination should be shown at the top of a page in a
field notebook. It is preferable to have only one hole to a page, but all in-
formation on that hole may be kept on the page if properly dated. The note-
book should be available to the grouting inspector.
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