摘要:
A method for reducing water leakage through sandbag dikes is disclosed, wherein a bentonite or other clay mud slurry is applied to the sandbags. The mud slurry may further include a water loss reducing chemical and/or a water blocking material. The mud slurry may be applied to the river side of the sandbags and may be covered with a plastic sheeting before the river level reaches the sandbags. The mud slurry, and any included chemicals and/or water blocking materials(s), form a coating on both woven plastic fabric and cloth sandbags as well as sandbags of non-porous plastic for reducing water flow through and between the sandbags. The plastic sheeting also makes it feasible to repair the dikes after the sandbags have become submerged by the rising water. That is, hoses can be inserted between the sandbags and the plastic sheeting for injecting the mud slurry at points having excessive leakage.
摘要:
The invention relates to a stabilized fluid barrier member and to methods of forming the same. The fluid barrier comprises a first outer sheet member having a top surface and a bottom surface, with a stabilizer element overlying at least part of the first sheet member top surface and abutting the top surface along at least a portion thereof. The stabilizer element contains a plurality of interstitial apertures adapted to contain a quantity of a selectively fluid-impervient barrier material and for substantially preventing displacement of the barrier material from the apertures, notwithstanding the angular inclination at which the fluid barrier member is oriented during manufacture, transport, installation and/or use. The barrier material is chosen for its ability to prevent passage of one or more particular fluids, in liquid or gas form, depending upon the application for which the barrier member is intended. The fluid barrier member of the invention may further comprise an optional second outer sheet member also having a top surface and a bottom surface. The second sheet member overlays at least part of the stabilizer element such that at least a portion of the second sheet member bottom surface abuts the stabilizer element. After positioning the various components of the barrier member in abutting stacked relation, they may all be bonded together along at least a portion of their abutting surfaces to form an interconnected laminate wherein the stabilizer element is in contact with and bonded to both the first and the second outer sheet members.
摘要:
The invention is concerned with a method of constructing or stabilizing an open site foundation wherein a series of slender piles each having a width of no more than 100mm. are driven into the ground and the tops of the piles are united with a thin concrete slab.
摘要:
The invention relates to a stabilized fluid barrier member and to methods of forming the same. The fluid barrier comprises a first outer sheet member having a top surface and a bottom surface, with a stabilizer element overlying at least part of the first sheet member top surface and abutting the top surface along at least a portion thereof. The stabilizer element contains a plurality of interstitial apertures adapted to contain a quantity of a selectively fluid-impervient barrier material and for substantially preventing displacement of the barrier material from the apertures, notwithstanding the angular inclination at which the fluid barrier member is oriented during manufacture, transport, installation and/or use. The barrier material is chosen for its ability to prevent passage of one or more particular fluids, in liquid or gas form, depending upon the application for which the barrier member is intended. The fluid barrier member of the invention may further comprise an optional second outer sheet member also having a top surface and a bottom surface. The second sheet member, when included, overlays at least part of the stabilizer element such that at least a portion of the second sheet member bottom surface abuts the stabilizer element. After positioning the various components of the barrier member in abutting stacked relation, they may all be bonded together along at least a portion of their abutting surfaces to form an interconnected laminate wherein the stabilizer element is in contact with and bonded to both the first and the second outer sheet members.
摘要:
A method and device for sealing the joint formed by the connection of adjacent sheet piling sections. Prior to installation in the ground, a housing having an open side is attached near the edge of a sheet piling section. A barrier is inserted between the open side of the housing and the sheet piling section and a sealant material is added to the housing. After the sheet piling section and the attached housing are installed in the ground, the barrier is removed and the sealant material contacts the joint to form a watertight seal.
摘要:
Subjects for the present invention are to provide a thickening agent for excavation stabilizing slurries which has excellent cement contamination resistance, is difficult to putrefy, and is prevented from bubbling, which may be problematic in construction works, and to provide an excavation stabilizing slurry containing the thickening agent and a cast-in-place underground pile method and an diaphragm wall construction method each using the slurry. The present invention provides a thickening agent for excavation stabilizing slurries which contains an emulsion thickening with an alkali, wherein in a strong agitation bubbling test of a mixture prepared by adding an alkaline substance to the thickening agent, the resulting mixture has an apparent specific gravity of 1.05 g/ml or higher as measured immediately after the strong agitation and has an apparent specific gravity of 1.10 g/ml or higher as measured at 10 minutes after the strong agitation. This thickening agent is used to prepare an excavation stabilizing slurry.
摘要:
This invention relates to methods of using environmentally friendly cementitious compositions for terminating water flow in a subterranean formation such as in a fresh water zone or water aquifer. Preferred compositions of the present invention include a hydraulic cementitious material such as Portland cement, a viscosifying agent such as bentonite which increases the viscosity of the composition in the presence of water, and a vegetable oil.
摘要:
A method of fabricating a groundwater monitoring system and a monitoring system formed using said method wherein a housing containing a groundwater monitoring well is slidably attached to a sheet piling section. After the sheet piling section is inserted in the ground, the housing is withdrawn so that the groundwater can be monitored by the well.
摘要:
The invention relates to a stabilized fluid barrier member and to methods of forming the same. The fluid barrier comprises a first outer sheet member having a top surface and a bottom surface, with a stabilizer element overlying at least part of the first sheet member top surface and abutting the top surface along at least a portion thereof. The stabilizer element contains a plurality of interstitial apertures adapted to contain a quantity of a selectively fluid-impervient barrier material and for substantially preventing displacement of the barrier material from the apertures, notwithstanding the angular inclination at which the fluid barrier member is oriented during manufacture, transport, installation and/or use. The barrier material is chosen for its ability to prevent passage of one or more particular fluids, in liquid or gas form, depending upon the application for which the barrier member is intended. The fluid barrier member of the invention may further comprise an optional second outer sheet member also having a top surface and a bottom surface. The second sheet member, when included, overlays at least part of the stabilizer element such that at least a portion of the second sheet member bottom surface abuts the stabilizer element. After positioning the various components of the barrier member in abutting stacked relation, they may all be bonded together along at least a portion of their abutting surfaces to form an interconnected laminate wherein the stabilizer element is in contact with and bonded to both the first and the second outer sheet members.