33results about How to "Control Horizontal Shift" patented technology

The invention discloses a caisson and pile combined foundation of consolidated subsoil and a construction method of the caisson and pile combined foundation. The caisson and pile combined foundation of the consolidated subsoil comprises the consolidated subsoil, a sand-gravel cushion, a caisson, bored piles, pile bottom grout, top seal concrete and scour protection. The main construction method comprises the following steps: consolidating the foundation with an underwater compaction sand pile or a deep-layer cement mixing pile; laying the sand-gravel cushion on the consolidated subsoil; sinking the caisson with a skirt, pile sinking guide holes and grouting reserved pipes on the sand-gravel cushion; after the caisson is located, constructing bored piles through the pile sinking guide holes; after construction of the bored piles, casting the top seal concrete at the bottom in the caisson; grouting the bottom of the caisson through the grouting reserved pipes at the bottom of the caisson, carrying out pile bottom grouting through grouting pipes in the pile, and at last casting the top plate of the caisson. In the construction process, the scour protection shall be performed around the caisson according to requirements. The caisson and pile combined foundation of the consolidated subsoil and the construction method of the caisson and pile combined foundation, disclosed by the invention, can effectively improve vertical and horizontal bearing capacity of the caisson, and control sedimentation and horizontal displacement of the caisson.

The invention relates to a double-row pile support structure capable of fully utilizing basement space and a construction method of the double-row pile support structure, and belongs to the field of building construction and room buildings. A crown beam I is arranged on the top of a front row pile, and a crown beam II is arranged on the top of a rear row pile. The top of the front row pile and the top of the rear row pile are connected through a connecting beam I. A waterproof curtain pile is arranged in a pile rear soil body of the rear row pile. After a field is leveled, all project piles are constructed according to the design. A connecting beam II is poured on the top of the cut front row pile. The connecting beam II and a negative layer basement bottom plate are integrally poured. The part between the front row pile and a minus-two floor basement outer wall is filled with layering compaction filling soil. The part between the front row pile and a minus-two floor basement bottom plate is filled with plain concrete. According to the double-row pile support structure, double-row piles are changed into a single-row-pile structure with the same rigidity by means of the equal-rigidity replacement principle of the double row piles and the single row piles, the horizontal displacement of a support structure system can be controlled, and meanwhile the foundation pit support cost can be greatly reduced; and good economical efficiency is achieved in a foundation pit project with basements with multiple layers.

The invention provides a method for carrying out dynamic compaction composite treatment on a sludge soil foundation through gravel piles, a drain board and an upper filling body, and belongs to the technical field of building foundation treatment. The method comprises the steps that S1, a construction cushion layer is laid; S2, construction of the gravel piles is achieved, and a vibration sunken tube method is adopted; S3, geotechnical cloth and a cushion layer below the tops of the gravel piles are laid; S4, construction of the plastic drain board is achieved; S5, an upper cushion layer and geotechnical cloth are laid; and S6, layered and staged dynamic compaction of the filling body is achieved. By means of the method, the advantages of preloading and dynamic compaction dynamic consolidation of the gravel piles and the plastic drain board are achieved fully, the advantages are complemented, and the defects of a single foundation treatment method are avoided.

The invention discloses a deep basement supporting construction method. The deep basement supporting construction method is characterized by comprising the following construction steps of: (1) constructing a layer of steel column foundation piles, two layers of steel column foundation piles, a layer of steel columns and two layers of steel columns; (2) constructing basement supporting row piles; (3) constructing basement waterproof curtains, and using cement mixing piles as the basement waterproof curtains; (4) constructing a layer of basement inner ring ring-beams and a layer of basement outer ring ring-beams; (5) constructing a layer of diagonal braces and angle braces; (6) carrying out pit earth excavation till reaching the construction elevation of the bottoms of two layers of basement inner ring ring-beams; (7) constructing two layers of basement inner ring ring-beams and two layers of basement outer ring ring-beams; (8) constructing two layers of diagonal braces; (9) carrying out pit earth excavation till reaching the construction elevation of the bottoms of three layers of basement bottom plates; (10) constructing the basement bottom plates; (11) constructing the outer concrete wall of the basement; (12) dismantling the two layers of basement inner ring ring-beams, the two layers of basement outer ring ring-beams and two layers of diagonal braces; (13) constructing two layers of basement floors; (14) dismantling a layer of basement inner ring ring-beams and a layer of basement outer ring ring-beams; and (15) constructing a layer of basement floors.

The invention provides a shock-absorbing and isolating structure and a shock-absorbing method thereof, which belong to the technical field of bridge engineering and are used to solve the problems of unsatisfactory shock-absorbing effect or high cost in traditional shock-absorbing and isolating methods. The structure includes a number of spherical bearings and rubber bearings arranged at intervals between the upper structure and the lower structure of the bridge. The top and bottom of the body are respectively equipped with upper and lower support steel plates, and the upper and lower support steel plates and the corresponding upper and lower cushion blocks are respectively provided with upper and lower cushion steel plates, and the upper and lower cushion steel plates are embedded Inside the upper and lower pads. In this damping method, first, the spherical bearing and the rubber bearing are fixedly connected between the upper and lower structures of the bridge, and the spherical bearing and the rubber bearing are arranged side by side; then when an earthquake occurs, the spherical bearing is After shearing, the rubber bearing bears the horizontal force, so as to realize the control of the horizontal displacement of the bridge girder.

The invention discloses a consolidated floor which comprises a dampproof plate. Wood-like grain paper is bonded to the upper surface of the dampproof plate, a floor lock is integrally formed on one side of the dampproof plate, and a floor buckle matched with the floor plate is formed in the other side of the dampproof plate. One end of the dampproof plate is fixedly connected with an inserting block, an inserting groove is formed in the inserting block, the inner side of the top of the inserting groove is fixedly connected with a first clamping head and a second clamping head, the second clamping head is located at the right side of the first clamping head, and a third clamping head and a fourth clamping head are fixedly connected with the inner side of the bottom of the inserting groove. According to the consolidated floor, the vertical displacement of the floor is effectively controlled through cooperation use of the inserting block and the inserting groove; the horizontal displacement of the floor is effectively controlled through cooperation use of the floor buckle and the floor lock; in this way, the vertical displacement and horizontal displacement of the floor are controlled, and therefore the service life of the floor is greatly prolonged.

The invention discloses a comprehensive mechanized coal mining face withdraw channel anchor rod and anchor cable supporting determining method. The method comprises the following steps that firstly, the radius of a top plate breaking zone and the radius of a plastic zone are calculated; secondly, parameters of top plate anchor rods are calculated, wherein the parameters of the top plate anchor rods include the length of the top plate anchor rods, the row distance between the top plate anchor rods and the prestress of top plate anchor ropes; and fourthly, parameters of side anchor rods are calculated, wherein the parameters of the side anchor rods include the length of the side anchor rods, the row distance between the side anchor rods and the prestress of the side anchor rods. By means ofthe determining method, it can be ensured that a working face support in coal mine production can be withdrawn in a safe state; and furthermore, the production cost of a coal mine can be reduced, theproduction efficiency can be improved, and theoretical reference is provided for the design and study of coal mine withdraw road supports in future.

The invention relates to an island constructing caisson without leveling of a foundation bed. The island constructing caisson without leveling of the foundation bed comprises a prefabricated caisson body, a grouting bag is arranged on a bottom plate of the caisson, and the grouting bag is connected with a grouting pipe. The invention further relates to a construction method of the island constructing caissons. The method includes the following steps that one caisson is positioned according to pre-determined design; the caisson is made to sink through ballast; when the caisson sinks to the pre-determined height, the caisson body is supported with a supporting device; binding material is injected to the grouting bag from the grouting pipe; after the binding material solidifies and reaches certain strength, the supporting device is taken out; sand and the ballast are injected to the bottom of the caisson, and pouring is performed; after the caisson is installed, a next caisson is installed according to the same steps. Due to the fact that grout is injected into the grouting bag after the caisson is placed well, concrete sets fast, the caisson body can be supported by the set concrete, setting is easy to control in the early stage of a caisson foundation, and setting and inclination in the construction period are not be caused easily.

The invention discloses a destructive test method for a gypsum filling box of a hollow floor. The method comprises the steps: step 1, making test preparation; step 2, preparing a gypsum filling box; step 3, carrying out damage detection; to be specific, cutting the hollow floor formed by the concrete layer with the strength reaching over 50% to obtain two gypsum mold boxes serving as test objects,observing the tangent planes, and weighing the weights of the gypsum mold boxes; step 4, comparing, observing and recording a test phenomenon; step 5, carrying out test analysis; and step 6, obtaining a test conclusion. With the method, the phenomena of horizontal displacement and upward floating of the gypsum filling box during concrete pouring can be well controlled; the sectional dimension ofeach component and the thickness of the reinforcing steel bar protective layers of the upper and lower plates are ensured to meet the specification and design requirements and the compactness of concrete at the lower part of the gypsum filling box is ensured; the problem of concrete quantity increase caused by damage of the gypsum filling box in the concrete pouring and vibrating process is conveniently solved. The construction process is simple and quick.

The invention discloses a fully mechanized coal mining face retracement end mining method. The method comprises the following steps that a support is installed in a retracement channel; the working face bottom plate is adjusted to be 180 mm-220 mm higher than the retracement channel bottom plate; the support of anchor rods and anchor cables of the retracement channel is determined and then the retracement channel is supported by using the anchor rods and the anchor cables; and end-mining net-hanging coal mining is performed; and mining is stopped and the fully mechanized mining equipment is retraced. According to the method, end mining is conducted based on the supporting determination method of the top plate anchor rods, the top plate anchor cables and the side anchor rods, supporting reworking can be avoided on the basis that supporting design is completed in one step and end mining is ensured to be conducted smoothly.