73results about How to "Guaranteed anti-seepage effect" patented technology

The invention discloses a static pressure prefabricated assembly type water tank and a construction method thereof. The construction method comprises the following steps of: dividing a tank wall structure into lath-shaped precast blocks for processing and prefabrication; locating a construction site, and excavating a guide pressure relief hole; sequentially pressing the lath-shaped precast blocksof the tank wall into a soil layer by using a static pressure machine, and forming a tank wall prototype; excavating internal soil, and arranging a support; eliminating the soil at connecting positions of the precast blocks, carrying out steel bar abutting joint, and carrying out cast-in-place construction at the connecting positions; and casting a bottom plate in place, and removing the support.A static pressure technology is applied to the construction of the water tank structure, can greatly reduce the earth excavation and backfilling amount in the conventional water tank construction process, reduces the deformation and uneven settlement of surrounding buildings, is suitable for construction in a narrow space, reduces the requirements on a construction site, accelerates the construction of the water tank, and shortens the construction period; and by adopting the static pressure technology, the noise is low during the construction period, and the construction can be performed on sites with surrounding residential areas. Meanwhile, the static pressure technology can greatly improve the friction resistance of the side wall of the water tank, which is beneficial to the reduction of anti-floating cost.

The invention relates to a construction quality detecting method of a vertical compound waterproof curtain body, belongs to the technical field of design and construction of geotechnical engineering, and solves the problems of weak accuracy and low efficiency in traditional drilling coring methods. The detecting method comprises the following steps: (1) multiple PVC pipes, a vibration source and an detector are provided; (2) the vertical compound waterproof curtain body is divided into multiple detecting units; each detecting unit is divided into multiple testing hole sections; each testing hole section comprises at least two testing holes; and the hole positions and the hole depths of the testing holes are determined; (3) the testing holes are formed; the coring is performed in the whole pile length; and the PVC pipes are put into the testing holes; (4) when one of the testing hole sections is detected, the vibration source and the detector are respectively mounted in the adjacent two testing holes; after the detection of one testing hole is finished, the hole positions of the vibration source and the detector are exchanged to finish the detection of another testing holes; and all the testing hole sections are detected in sequence; and (5) the pile quality is evaluated to give treatment suggestions.