Download Common Families of Flowering Plants by Michael Hickey PDF

By Michael Hickey

This publication presents a simple advent to 25 as a rule happening households of flowering vegetation, selected for his or her monetary, decorative and ecological value. it really is designed to allow scholars of botany and similar disciplines to realize a few wisdom of the final features of every kin and likewise the relationships between them. An introductory part offers simple botanical details crucial for a formal attention of the households themselves. for every kin, details on its distribution, type, normal beneficial properties and fiscal significance precedes an in depth description of a customary consultant species that may be valuable to botanists and botany scholars. Illustrated all through with transparent and actual line diagrams and followed by means of an intensive word list.

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24 6 6 8 4 5 a Grout type Grouting method 35% SIROC 142 O1 35% SIROC 142 O1 28% Silicate/R-600 S2 35% SIROC 142 S2 45% SIROC 132 S2 25% Silicate/Aluminate S1 25% Silicate/Aluminate S3 25% Silicate/Aluminate Cement– S3 bentonited 25% Silicate/aluminate Cement– S3 bentonite 55% SIROC 142 O1 55% SIROC 132/142 S2 55% SIROC 132/142 S2 46% Silicate S3 46% Silicate/R-600 S3 Cement–bentonite Total volume of grout (gal): Theoretical vol. ) Actuala vol. 1) 123,522 First figure is volume in gallons; second figure in parentheses is volume expressed as a percent of volume of soil to be treated.

26, Prepared by Woodward-Clyde Consultants for St. Louis District Corps of Engineers. Copyright 2003 by Marcel Dekker, Inc. All Rights Reserved. Appendix F Ground Improvement Copyright 2003 by Marcel Dekker, Inc. All Rights Reserved. Applicability of Various Ground Improvement Methods Copyright 2003 by Marcel Dekker, Inc. All Rights Reserved. Characteristics of Soil Improvement Methods Method Principle Maximum effective treatment, depth, ft Most suitable soils and types Advantages and limitations VIBROCOMPACTION Blasting Shock waves cause liquefaction, displacement, remolding Saturated, clean sands, partly saturated sands and silts after flooding 60 Rapid, low cost, treat small areas, no improvement near surface, dangerous, Terra-probe Densify by vertical vibration, liquefaction induced settlement under overburden Saturated or dry clean sand (less effective in finer sand) 60 (ineffective above 12-ft depth) Rapid, simple, good under water, soft underlayers may damp vibrations, hard to penetrate overlayers Vibratory rollers Densify by vibration, liquefaction induced settlement under roller weight Cohesionless soils 6 to 9 Best method for thin layers or lifts Dynamic compaction (consolidation) or heavy tamping Repeated high intensity impacts at the surface gives immediate settlement Cohesionless soils best, other soils can be improved 45 to 60 Simple, rapid, must protect from personal injury and property damage from flying debris; groundwater must be >6 ft below surface faster than preloading but less uniform Copyright 2003 by Marcel Dekker, Inc.

Some boreholes were drilled with bentonite drilling fluid; others were drilled with Revert. 04 The purpose of the sleeve-grout was to prevent upward travel of grout along the sleeve-pipe during subsequent injections. The procedure for injecting grout through a sleeve-pipe involved the use of a double packer connected to a grout pipe extending to the ground surface. The grout pipe was in turn connected to a grouting pump through a rubber hose. Grout injection proceeded from bottom of the sleeve-pipes upward through one or two sleeves at one time.

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