34results about How to "Fully reinforced" patented technology

The invention discloses a liquid division slip casting reinforcing method for subsurface structure construction joints, mainly aiming at the problems that as the subsurface structure construction is severely influenced by ground water, the peripheral structure leaks water, the material strength is reduced, the structure integrity is poor and the like. A purpose-made grouting pipe is arranged at the construction joint of a structure connector with weak stress in the process of subsurface structure peripheral construction, and the liquid division slip casting reinforcing operation is performed based on a designated method, thus making up for the defects of poor rigidity and poor waterproof effect at the construction joint of the subsurface structure preferably. The method in the invention has good grouting effect and high grouting success rate, can effectively improve the strength and the integrality of the subsurface structure, and reduce the leakage of the construction joint of the subsurface structure.

The invention discloses a water-resisting layer strengthening grouting transformation device and method based on staged fracturing. The device comprises at least two fracturing grouting controllers which are sequentially connected in series through high-pressure fracturing pipe columns, and the high-pressure fracturing pipe columns between the fracturing grouting controllers are connected with safety opening devices in series; each fracturing grouting controller comprises an outer sleeve, a packing capsule, an inner sleeve, a pressure spring and a one-way blocking elastic piece; each outer sleeve is provided with a first opening and a second opening, and a valve seat is arranged in each outer sleeve; each packing capsule is arranged outside the corresponding outer sleeve in a sleeving mode and communicates with the corresponding first opening; each inner sleeve is slidably matched in the corresponding outer sleeve, each pressure spring is supported between the corresponding inner sleeve and the corresponding valve seat, each inner sleeve is provided with a third opening and a fourth opening, each third opening can be aligned with the corresponding first opening, each fourth opening can be aligned with the corresponding second opening, and a first ball seat is further arranged at the inner end of each inner sleeve; and each one-way blocking elastic piece is arranged on the inner side of the corresponding valve seat. According to the water-resisting layer strengthening grouting transformation device and method based on staged fracturing, the problems existing in existing roof water disaster prevention and control can be solved.

The invention provides a construction method of a concrete pile. The construction method comprises the following steps of: firstly, finishing the construction of a concrete cast-in-place pile; and under the condition of keeping the integrity of a concrete pile body, carrying out the construction of pile end carriers with various forms to eliminate common hidden dangers of pile bottom soil leakage,sediment and the like of the conventional concrete cast-in-place pile, further improve the bearing capability of the concrete cast-in-place pile and realize the improvement of the working efficiencyand the saving of the cost. The construction method comprises three types: one type is that pile body concrete is poured after a pile casing channel is pre-arranged and then the construction of a pileend curing carrier or a dense carrier or a curing and dense carrier is carried out; the second type is that the pile casing channel is additionally arranged after the pile body concrete is poured andthen the construction of the pile end curing carrier or the dense carrier or the curing and dense carrier is carried out; and the third type is that the pile body concrete is poured after the pile casing channel is pre-arranged and then the construction of a pile end dense anti-pulling carrier is carried out.

The invention discloses an integrated backfilling and pouring method for an integral straight middle wall top of a multi-arch tunnel, which is characterized in that a space between a middle partition wall top and a middle pilot tunnel initial supporting vault is divided into three areas, namely a wall top trapezoid area and triangular areas on the two sides; a middle partition wall body and a wall top trapezoid area are poured to a middle pilot tunnel vault at a time after a middle partition wall foundation is poured; main tunnel construction is conducted after a middle partition wall is poured; the triangular areas on the two sides of the wall top and a main tunnel primary support are subjected to integrated sprayed concrete backfill construction; steel floral tubes are adopted for supplementary grouting reinforcement; and pouring of the middle partition wall body and the wall top is completed. According to the invention, the problems that concrete of the wall cap of the middle partition wall is not vibrated compactly due to the fact that the construction space of the wall top is extremely limited in a conventional construction method, and the strength is insufficient are solved. The safety of main hole excavation construction is ensured. The integral structure formed by the middle partition wall and the main tunnel primary support is better in integrity. The risks of cracks and water leakage of the middle partition wall can be effectively reduced.

The invention discloses a method for dam support and danger elimination of high water level and thick silt reservoirs. The method has the advantages of simple construction, low industrial requirements, low engineering cost, high speed, thorough reinforcement and no construction hidden dangers left behind.

The invention discloses an automatic stem cell extracting device. The automatic stem cell extracting device comprises a main box, an operation box, a control cabinet, a top cover, an operation table,an operation panel, a sampling table, a centrifuge, universal wheels, centrifuge supports, a rotating shaft support, test tube supports and test tubes, wherein the operation box is arranged on one side of the main box, the sampling table is arranged at the top end of the operation box, the operation panel is disposed at the top of the operation box, the operation table is arranged on one side of the operation table, the centrifuge is arranged in an inner cavity of the main box, the universal wheels are arranged at the bottom end of the main box, the centrifuge supports are arranged in an innercavity of the centrifuge, the rotating shaft support is arranged at the tip end of the centrifuge, the test tube supports are arranged on the outer surface of the rotating shaft support, and one testtube is arranged at one end of each test tube support. According to the automatic stem cell extracting device, all-angle centrifugal movement can be realized through the centrifuge supports and centrifuge pillars, an extracting machine can realize stable conveying in the conveying process through the universal wheels, and centrifugal test tubes can be mounted in six directions through the rotating shaft support.