30results about How to "Saving concrete" patented technology

The invention relates to the field of various pipe piles, in particular to a bridge abutment prestressed pipe pile pulling-out method and a matched device thereof. The matched device comprises an excavator, a crane, a vibration hammer and auxiliary tools, wherein the auxiliary tools comprise a sinking steel pipe, a clamp plate and a tensile reinforcement. The method comprises the steps of sinking of the sinking steel pipe, pulling out of a pile body, pulling out of the sinking steel pipe and the like. All matched facilities of water jet and impact construction methods are avoided, noise is low, and the construction speed is high.

The invention discloses an improved type telescopic movable chute tube. The improved type telescopic movable chute tube is mainly used for pouring concrete in the field of constructional engineering. The improved type telescopic movable chute tube is high in pouring efficiency, concrete is saved, and the labor intensity is relieved. The improved type telescopic movable chute tube mainly comprises a vehicle frame, wheels, an n-shaped vertical frame, a hydraulic cylinder, a hydraulic piston, a telescopic rod, a movable frame, a fixed chute tube body, movable chute tube bodies, a feed hopper, a front support device and an n-shaped frame. According to the main working principle of the improved type telescopic movable chute tube, the concrete slides over the fixed chute tube body and the multiple movable chute tube bodies from top to bottom, slides out from the movable chute tube body at the most front end and enters a pouring point; if the concrete needs to be poured to a far place, the telescopic rod is stretched rightwards, the front end of the telescopic rod drives the movable chute tube body at the most front end to move frontwards, after a limiting ring of the movable chute tube body at the most front end touches a limiting ring of the second section of movable chute tube body, the second section of movable chute tube body is pulled out, and in the same way, the rest sections of movable chute tube bodies are pulled out; and the hydraulic piston is stretched out or retracted, and the inclined angle of concrete discharge and the discharge height can be changed.

The invention relates to a base structure used for installing an oil immersed transformer. The invention is arranged in a transformer room where a box-shaped base is arranged. An oil collecting groove is arranged around the internal part of the box-shaped base. The oil collecting groove is communicated with an oil collecting pit positioned at an end of the oil collecting groove. A cement level-ground is arranged on the outer edge of the box-shaped base. A plurality of flat bars are pre-embedded in the middle of the box-shaped base and are fixed by reinforced cables. And a plurality of flat bars are pre-embedded in a wall of the transformer room and a steel hook is also pre-embedded on the wall so as to pull the transformer. By adopting the structure of the transformer box-shaped base of the invention, the structure can be free from a building frame base and the weight of the transformer is born by the box-shaped base. Then, although the box-shaped base causes slight settlement to the ground, the adopted flexible connection of cables can not be affected. The transformer base of the invention needs no piling so as to save an investment cost. The arrangement of the oil collecting grooves around the internal part of the box-shaped base can drain the oil for storage so as to meet fire control requirement.

An anchor tensioner for integrated tubular piles, belonging to the technical field of pile foundations, provides an anchor tensioner for integrated tubular piles, including a set of prefabricated concrete components and pile armor, the prefabricated concrete components constitute the pile body, including Pile slats, anti-slip restraint rings, and end pressure seats. The pile slats are arranged vertically and circularly around the circumference of the annular pipe pile. The end pressure seat is located at the bottom of the integrated pipe pile and bears end resistance. The pile slabs are restrained and fixed. The anti-slip restraint ring is horizontally arranged at the upper and lower splicing positions of the pile slabs and constrains the vertical and radial displacement of the pile slabs. The anchor tensioner integrates each concrete component into a pile body. A is arranged on the periphery of the pile slab and the inner side of the pile hole wall soil, and transmits the normal pressure and frictional resistance of the pile hole wall soil. The invention reduces cost, facilitates construction, saves energy and protects the environment, improves quality, reduces on-site manual work, and has significant economic and social benefits.

The invention relates to the technical field of pile foundations, and discloses a vertical controller for an integrated pipe pile; the integrated pipe pile is composed of a group of prefabricated concrete components and a pile armor, and the prefabricated concrete components include pile strips, anti-slip confinement rings , End pressure seat, the pile strip is arranged vertically and circumferentially around the ring-shaped pipe pile, the end pressure seat is located at the bottom end of the integrated pipe pile, bears the end resistance, and is vertically and radially restrained and fixed to the pile strip, anti-skid The constraining ring is horizontally arranged at the upper and lower splicing positions of the pile strips and constrains the vertical and radial displacement of the pile strips. A vertical controller is arranged on the end pressure seat to control the vertical position of the pile body in the pile hole. . The vertical controller technology for the integrated pipe pile disclosed by the invention has the advantages of lower cost, convenient construction, energy saving and environmental protection, improved quality and reduced on-site manual operation, and has significant economic and social benefits.

The invention relates to a mechanical hole forming technology applied to karst landform. The technology comprises the following steps of: laying off and positioning; digging a mud pit; burying a pile casing; arranging a drill in place and making mud; forming holes by using an impact machine, wherein when a karst cave is greater than or equal to 3m in depth during construction, a steel pile casing dado is arranged; pumping out sediment and supplementing mud; checking the sediment; clearing off the holes by using a home-made hole cleaning device; checking the holes; arranging a steel reinforcement cage; arranging guide pipes; and pouring underwater concrete. By the mechanical hole forming technology, the probability of occurrence of hole collapse, overfilling of concrete and the like can be lowered, karst cave areas can be effectively protected, the effect of saving concrete is achieved and the cost is further reduced; moreover, by the mechanical hole forming technology, a unit in charge of construction can be effectively helped to clear off sediment from the bottoms of holes, hole piles in collapsed holes can be cleared quickly, the specific depth of a hole pipe can be measured by construction workers.

The present invention relates to a novel structure inclined inserted excavation pile foundation which is composed of a vertical foundation pile (1) and an oblique cylinder (2) which is arranged at the top of the foundation pile. The invention is characterized in that the foundation pile (1) is established under the foundation (A1) to form a base supporting force-bearing point. The oblique cylinder (2) is obliquely inserted into the top of the foundation pile (1) and forms an angle alpha 1 with the top of the foundation pile (1). The top of the oblique cylinder (2) is extended with a tower legconnecting structure (3) which is exposed from the earth singly or with the top of the oblique cylinder (2). The top of the tower leg connecting structure (3) is provided with a plurality of bolt holes (3-1). The invention has the advantages of reducing the bending moment of pile shaft at the ground, improving the force bearing state of the foundation pile, facilitating the stability of the foundation pile and the whole pile body, and the invention also has the advantages of reducing the work capacity for digging the pile, saving concrete, economizing cost, increasing the working efficiency. The invention is suitable for the pile foundation of the high voltage power transmission circuit at the massif area.