SOIL CONTAMINATION pps
Heavy metal contamination in soils of urban highways (comparision between runoff and soil concentration
... than in soil, especially for Pb, Zn and Cu. They reported exchangeable percentages of Pb dust : 13%, Pb soil :2%;Zn dust : 10%, Zn soil : 3%; Cu dust : 11%, Cu soil :2%;Cd dust : 27%, Cd soil : ... 62 30 HEAVY METAL CONTAMINATION IN SOILS OF URBAN HIGHWAYS 309 Figure 4. Cluster analysis. Figure 5. XRD pattern of XS1 taken from 1–5 cm depth. HEAVY METAL CONTAMINATION IN SOILS OF U...
Ngày tải lên: 16/03/2014, 00:25
Động đất (Soil Dynamics) - tài liệu tiếng Anh
... considered, ignoring the interaction with the soil. In later sections the friction interaction with the surrounding soil, and the interaction with the soil at the base will be considerd. Consider ... first be evaluated. This parameter can be estimated to be related to the soil stiffness by a formula of the type A. Verruijt, Soil Dynamics : 1. VIBRATING SYSTEMS 22 Equation (1.68) can be...
Ngày tải lên: 16/10/2012, 11:26
CRITERIA OF ACCEPTANCE FOR CONSTANT RATE OF STRAIN CONSOLIDATION TEST FOR COHESIVE SOIL
... for Kaolin Soil 177 I Example Standard Oedometer Test for Gemas Soil 179 J Example Standard Oedometer Test for Air Papan Soil 181 K Example Standard Oedometer Test for Kluang Soil 183 ... Sand for Soil Sample 60 4.2 Liquid Limit, Plastic Limit and Plastic Index for the Soil Sample 61 4.3 Specific Gravity for the Soil Sample 61 4.4 Compaction Test Results 62...
Ngày tải lên: 22/03/2013, 15:01
CONSOLIDATION ANALYSIS OF EMBANKMENT IN STAGED CONSTRUCTION ON SUBGRADE SOFT SOIL
... EMBANKMENT IN STAGED CONSTRUCTION ON SUBGRADE SOFT SOIL ABSTRACT Earthfill dam requires relatively good soil bed as bearer, where the soil consolidation can subside due to excessive loading. ... to be supplied near the dam site. Embankment dams on soft subsoil are often constructed in stages in order to pre-settle the soft subsoil, and dissipate the excess pore pressure duri...
Ngày tải lên: 01/04/2013, 22:44
arsenic contamination in soils, water and plants
... Arsenic contamination in soil Soil samples from 6 locations, called in corresponding points as bore holes (BH) number, were classified using the Unified Soil Classification System. Soil profiles ... contaminated soil is at BH6. The contamination levels in BH6 are substantially high at the top and steeply decrease at lower depth; the concentration levels are of 56.17 mg/kg...
Ngày tải lên: 25/04/2013, 08:21
boundary element methods for soil structure interaction
... a soil deposit which is on the top of a viscoelastic half-plane model are studied. The analysis is done for a soil layer on top of the viscoelastic half-plane and also for a semi-elliptical soil deposit ... of numerical dynamic soil- structure interaction. The behaviour of structures based on compliant soils and subject to dynamic actions may depend to a large extent on the soil prop...
Ngày tải lên: 17/08/2013, 11:30