Construction dewatering and groundwater control / Водоотведение в строительстве и контроль грунтовых вод

In the preface to the first edition of Construction Dewatering—New Methods and Applications, the stated intent of the book was to be a source of practical information for engineers and contractors who must contend with groundwater on construction projects. However, current ractice includes many methods besides straightforward dewatering. The content and new title, Construction Dewatering and Groundwater Control, of this third edition reflect this. When the second edition of Construction Dewatering appeared a dozen years ago it was noted in the Preface that the manner in which water moves in the ground and the effect water has on the ground had changed little in the decade since the first edition of the book had been published. But there had been significant changes in the manner in which engineers and geologists analyzed groundwater problems and in the equipment and methods they used to control groundwater. There had also been changes in the condition of the earth’s great groundwater resource. In many areas of the world the water resource had been depleted, which is of concern to those seeking groundwater supplies. Where groundwater has been depleted, authorities regulate its pumping, and this is of concern to dewatering engineers as well. Where there are restrictions on pumping water, the proposed method of groundwater control for construction may need to be modified, at incremental cost that can be considerable. Of even more concern to both water supply and dewatering engineers is the widespread contamination of groundwater that has occurred. Some of the contamination has been due to overpumping, which has resulted in saltwater intrusion, or in the migration of other natural contaminants such as hydrogen sulfide into once potable and productive aquifers. Much of the contamination, however, has resulted from careless disposal by mankind of human, industrial, and agricultural wastes into the ground.

The same statements described above that were made in the second edition in 1992 are appropriate to this third edition as well. In the past dozen years, the fundamentals of understanding groundwater hydrology have not changed; it is the methods of analyzing groundwater conditions and the means to solve groundwater problems that have improved. These improvements are much welcomed, because the depletion and contamination situations have deteriorated further.  <...>