37results about How to "Improve horizontal carrying capacity" patented technology

The invention discloses a combined pile foundation structure. A hollow cone structure coaxial to a barrel-shaped foundation is arranged on the top of the barrel-shaped foundation; the centre of the top surface of the hollow cone structure is provided with a first connecting section ring girder structure; the centre of the top cover of the barrel-shaped foundation is provided with a second connecting section ring girder structure; a single-pile foundation is inserted in the first connecting section ring girder structure at the upper part and the second connecting section ring girder structure at the lower part; and the single-pile foundation is respectively fixedly connected with the first connecting section ring girder structure and the second connecting section ring girder structure. According to the combined pile foundation structure, the advantages of clear stress, strong applicability to soil layers, convenience in construction and good horizontal carrying capacity of the barrel-shaped foundation of the single-pile foundation are sufficiently utilized; the integral rigidness, horizontal load resistance, vertical load resistance and bending moment capacity are greatly improved, the bending moment load of a blower load to the foundation is effectively reduced and the horizontal displacement of a wind power structure is reduced, so that the pile length, pile diameter, wall thickness and penetrating depth of the pile foundation are reduced, the cost of materials is greatly reduced and the construction process is simpler.

The invention discloses a device for improving the stability of an ancient building brick column and a method for determining its bearing capacity. The ancient building includes a brick column and a wooden beam on the top of the brick column. The device for improving the stability of the ancient building brick column includes: a U-shaped card , cables, anchors and pins; wherein, one or more cables are arranged on both sides of the brick column, one end of the cables is hinged with the anchors located under the inner side of the wooden beam through a pin, and the other end of the cables Go around the top of the brick column and place it in the U-shaped card on the wooden beam. After pre-tensioning the cable, the other end of the cable is fixed and hinged with the anchor piece located on the outside of the wooden beam. In terms of related structures, the U-shaped card is set on the top of the wooden beam, and the U-shaped card is pressed against the wooden beam by means of a pre-tension force applied by the cable. The device of the present invention does not destroy the brick column structure of the original ancient building, but at the same time can improve the horizontal bearing capacity of the original structure, and realizes the principle of minimal intervention and reversibility in the repair and protection of cultural relics.

The invention discloses an offshore wind power foundation structure consisting of a single pile, cylindrical foundations and an anchor cable. The offshore wind power foundation structure consists of a single pile, multiple cylindrical foundations and an anchor cable, wherein the cylindrical foundations are uniformly distributed on the circumference which takes the single pile as the center of a circle; the anchor cable is obliquely tensioned and is connected with the cylindrical foundations and the single pile; the anchor cable, the cylindrical foundations and the single pile are connected through welding; the included angle between the anchor cable and the single pile is between 30 and 60 degrees; and the top of the single pile is connected with a wind turbine tower through a flange plate. According to the technical scheme, a novel foundation type consisting of the single pile, the cylindrical foundations and the anchor cable is given, the anchor cable is connected with the cylindrical foundations and the single pile and is obliquely tensioned, the resistance of shallow soil on the earth surface is fully exerted, the bending moment resistance of the structure is enhanced, and the displacement of the pile body is reduced, so that the aim of reducing the diameter and thickness of the single pile is fulfilled.

The invention provides a fixing device and method of a horizontal safety rope for roof overhaul. The fixing device comprises a base, a winding column where the safety rope is wound is arranged on theupper side of the base, a pull rod is arranged at the bottom of the base, a press plate is arranged at the lower end of the pull rod, the pull rod penetrates through a through hole in the press plateand then is fastened by a first nut, and the base and the press plate are arranged on the upper surface and the lower surface of a roof separately. The fixing device is mounted in an installation holein the roof, and the safety rope is wound on the winding column of the fixing device, so that the safety rope is fixedly installed. The connecting strength between the fixing device and the roof is high, and operation safety is improved.

The invention discloses a method for molding the high-pressure rotational spray expansion post in sink area. Wherein, forming a trapezium expansion disc on the post formed by rotational spraying slurry injection according to the segment pressure or the injection time; inserting section steel as anti-drawing material into the post. The invention can increase the upright bearing ability and improve the horizontal bearing ability; especially at the interface of soil, it can eliminate the effect of horizontal displacement, with lower cost, short time, easy construction, lower soil occupied and saved land resource. The invention can be used to strengthen the foundation in large distortion condition, to reduce cost and improve economic benefit, with wider application.

The invention discloses a jacking device and a method for improving the horizontal bearing performance of a low bearing platform, belonging to the technical field of bridge engineering. The jacking device can squeeze the soil of the side wall of the low cap and refill the dense crushed stone concrete, which solves the problem that the foundation soil of the side wall of the low cap is loose and cannot be in close contact with the side wall of the cap and cannot provide high-level resistance Therefore, the purpose of significantly improving the horizontal bearing capacity of low caps is realized, and the safety reserve goal of improving the pile group foundation of low caps is achieved. After the soil is compressed, the device is reset by a reset device, and the main components can be taken out from the slot, so it can be reused, thereby significantly reducing the application cost of the pushing device. It provides an additional safety reserve for the large-scale low cap pile foundation of important projects, and makes it possible to consider the role of the low cap in the design process of the pile group foundation. Security applications play an important role.

The invention provides a load reduction and heightening structure of an existing retaining wall and a construction method thereof. At a horizontal clear distance of one-third of the height from the back of the existing retaining wall, the construction of the lead-hole type prefabricated sheet pile is carried out. Excavate the foundation trench at the upper part between the existing retaining wall and the prefabricated sheet pile, set a reinforcement layer at the bottom of the foundation trench and hang and set a bracket on the reinforcement layer, place the top plate on the bracket, and add a foundation outside the original foundation of the existing retaining wall Expand the foundation and connect it through horizontal connecting ribs. The outer side of the expanded foundation is provided with an extension wall toe, and ribs are added on the upper part. The ribs and the bottom of the existing retaining wall are provided with horizontal connecting ribs. At the top of the retaining wall, set a super-long unloading plate in the middle of the heightened retaining wall, set drain holes in sequence below the super-long unloading plate of the heightened retaining wall, and finally set a water filter layer and Artificially fill the soil, and set a surface layer on the top of the filter layer and the artificial filling soil, and the top of the surface layer is at the same height as the top of the heightened retaining wall.

The invention discloses a steel column concrete root deep water foundation structure and a construction method for the steel column concrete root deep water foundation structure. The steel column concrete root deep water foundation structure comprises an upper steel column and lower concrete roots, wherein the upper steel column is internally hollow, the diameter of the upper steel column is 3.2 mor above, and the bottom of the upper steel column goes deep to be below the local scour line of the seabed; and the lower concrete roots are provided at least three and of solid structures, the diameter of each lower concrete root is 0.8-2.5 m, and the lower concrete roots are arranged inside the upper steel column, the upper ends of the lower concrete roots are fixedly connected with the innerwall of the upper steel column through a first cushion cap, the first cushion cap is above the seabed surface, the lower end of the upper steel column is fixedly connected with the outer walls of thelower concrete roots through a bottom seal segment, and the bottom seal segment is formed by pouring concrete. The steel column concrete root deep water foundation structure is simple in constructionand reasonable in force bearing, has the excellent horizontal bearing capacity, further has the reliable vertical bearing capacity and gives full play to the mechanical properties and advantages of different materials, the use amount of basic materials is saved, the construction cost of deep-water foundation in harsh deep-sea environment is lowered, and the steel column concrete root deep water foundation structure and the construction method for the steel column concrete root deep water foundation structure are suitable for the marine engineering deep-water foundation with deep water and fastflow, long and high wave, severe scour and deep covering layers.