摘要:
A method of treating a pond, lake or other body of water to improve the retention of water includes treating the ground at the bed of the pond with bentonite clay, a super absorbent polymer, a polysaccharide, and a polymer flocculant. The bentonite clay can be granulated #16 Wyoming bentonite clay, the super absorbent polymer can be granulated polyacrylamide, the polysaccharide can be granulated carboxy methyl cellulose, and the polymer flocculant can be a high-performance polymer flocculant, such as 2-Propenoic Acid, polymer with 2-Promenamide, sodium salt 90-100%.
摘要:
Disclosed is a drainage canal structure, and in particular is a prefabrication type drainage canal structure which makes it possible to prevent a transformation and disengagement of a drainage canal in such a way that a plurality of drainage canal bodies each equipped with a waveform reinforcing unit are assembled in series, and a protection net is arranged over the drainage canal bodies which are buried underground, and a side reinforcing unit is installed into the ground so that a bottom foundation can be expanded, and the drainage canal bodies can be fixed in place on the ground. Trees, gravels, etc. can be prevented from penetrating into the drainage canal bodies thanks to the protection net. The drainage canal structure with an increased self-weight can be provided, which can keep it in place. Work and construction time can be saved because the drainage canal structure can be manufactured on the spot.
摘要:
A drainage apparatus comprises a support device including a support segment defining a clamp path, a first clamp member and a second clamp member. At least the second clamp member is configured to be coupled to the support segment while being free to translate along the clamp path. The drainage apparatus further includes a wedge including a drive axis, a first edge and a second edge. The wedge is tapered along the drive axis between the first edge and the second edge, and the wedge is configured to be driven in a direction of the drive axis into a locked orientation of the support device.
摘要:
An asymmetric corrugated ditch liner is disclosed that is formed with asymmetrical corrugations adapted to control fluid and materials flow through the liner. The asymmetric corrugated ditch liner also includes opposing angled opposing aprons that also having asymmetrical corrugations extending from opposing top edges of the ditch liner in a direction perpendicular to the longitudinal axis of the liner. Connectors are provided for assembling the asymmetric corrugated ditch liner in a ditch. Anchors also are included for assembling the asymmetric corrugated ditch liner in a ditch.
摘要:
Modular drainage components include a curb liner section, a culvert receiver, a secondary connector, a trapezoidal ditch liner section and a curved ditch liner section. A plurality of curb liner sections are inserted between a roadway and a strip of land to block overflow from the roadway. The culvert receiver is placed between a open ditch liner section and a culvert. The secondary connector provides a flow path for secondary flow to or from a primary flow. A plurality of trapezoidal ditch liner sections or a plurality of curved ditch liner sections may be placed end to end to form a radiused path of flow.
摘要:
A method for forming caves on a construction, including steps of: preparing an envelope corresponding to the cave to be formed on the construction. Filling a fluid such as a gas or a liquid into the envelope to form a solid envelope; embedding the envelope in the construction to be grouted to define a grouting mold cavity. Deflating or draining the envelope of the fluid after a filling filled in the grouting mold cavity is hardened to achieve a construction with the caves.
摘要:
An assembly (10) for forming a trench (T) includes one or more frame members (16) that cooperate with a removable form (12) around which a moldable trench forming composition (C) is poured. The form is made of deformable buoyant material such as expanded polystyrene. Rebar legs (18) are attached to the frame members to provide secure anchoring of the frame members to both the ground (E) and in the trench forming composition. Preferably, each frame member includes a horizontal leg that is received in a slot (22) formed in one of the opposing side walls of the form. The cooperating engagement between the frame member (16) and the form provides longitudinal support to prevent the buoyant form (12) from lifting within the trench composition (C) while also maintaining the proper spacing and planar alignment of the frame members. Wire strands (28) are placed within cooperating guide tracks (24) in the opposed ends of the form. The wire strands are pulled through to deform the form after the composition has hardened. To form the trench, a ditch (D) is prepared. The trench form assembly is prepared and then secured in the ditch. The moldable trench forming composition is poured around the form assembly and allowed to set. The form is then deformed by pulling the deforming wire strands through the form. The segmented form is then removed to reveal the finished trench.
摘要:
A liner is disclosed for a waterway of the type adapted to overlie the bottom of the waterway while a cementious layer covers and protects the liner. The liner itself is positioned at the bottom of the waterway by a machine having two elongated and spaced apart guide rails, each having a hollow interior and a longitudinally extending slot open at each end. The liner includes an elongated, flexible and water impervious sheet of a geomembrane material, such as polyvinyl chloride (PVC) or polyethylene material, having two spaced apart side edges. A strand is secured along each edge of the sheet by wrapping a flap of the sheet around the strand so that the flap encircles and then flatly abuts against one side of the sheet. A heat seal between the flap and the sheet bonds the flap and sheet together and the enclosed strand is then longitudinally slidably positioned within the interior of one of the guide rails.
摘要:
A canal trimming machine is disclosed which is designed to trim the bottom and sides of an earthen canal so that the canal may be lined and paved. The machine comprises a frame which extends across the width of the canal and which has propelling tracks at the opposite ends thereof which are driven along the canal in the proper direction and at the proper grade. A trimmer is longitudinally movably mounted on the frame and trims at least one-half of the bottom and a majority of one side of the canal. The trimmer is automatically positioned at the proper grade to ensure that the bottom and sides of the canal will be properly prepared for the lining and paving operation. A rock spreader is also mounted on the frame and trails behind the trimmer to fill low spots in the canal so that an even surface will be provided for the lining and trimming operation.
摘要:
Channel construction machinery is provided with a levelling and material lining application attachment to thus provide a continuous mode of channel construction operation in either the longitudinal or transverse direction of operation with respect to the longitudinal axis of the channel. The levelling and/or lining attachment is provided with at least one shaft which is mounted and driven so as to rotate. The length of the shaft is proportioned to the length of the embankment section to be worked on. Located about the circumference of the shaft are blade-like elements, whose surfaces are directed at an angle to the axis of the shaft. The shafts and angularly directed blades are mounted on implement carriers of the channel construction machine in a manner such that they oscillate by being connected to vibration actuators. The implement carriers, however, attached to the frame of the apparatus are isolated from the vibrations of the vibrator by damping elements. In the preferred embodiment of the invention, the blade-like elements are linked together and fixedly mounted as a helix surrounding the rotating and oscillating shaft.