42results about How to "Solve the problem of uneven settlement" patented technology

The invention relates to a method for assembling electric transmission lines through coal gangue area towers. The method comprises that the electric transmission lines are erected according to an overhead method; when the electric transmission lines pass dumping areas, combined step foundations of which foundation pads are connected with column heads through connecting beams serve as tower foundations, and meanwhile, protection slopes and retaining walls are built in a masonry mode; and soil substitutes for silty clay to be tamped, and SDF-I type graphite grounding modules are grounded, so that the towers are grounded. According to the method, paths are reasonable, work periods are short, the investment is low, the implementation and the maintenance are convenient, gaps of erection of the towers under the geological conditions of coal gangue areas are filled, and a solid foundation is laid for providing of technical support for assembly of concrete poles, communication poles, crossing frames, ring-network cabinets and box-type substations and even construction of new substations under the geological conditions of coal gangue, oil shale, strong weathered rocks and the like in the future.

The invention discloses a method for treating the bottom structure of a building in a substation. In the method, a bearing platform, a foundation beam positioned above the bearing platform and a reinforced concrete board structural layer positioned above the foundation beam are arranged at the bottom of the building. The treatment method is easy to construct and thoroughly solves the problem of the differential settlement of the building bottom in the substation on a soft soil foundation.

The invention relates to a cable working well which comprises a bottom plate, a side wall and a cover plate which define a space in the well, the side wall is used for being connected with a cable duct bank, the bottom plate is provided with an outwards-extending part extending out of the outer edge of the side wall in the extending direction of the cable duct bank, and the cable duct bank furthercomprises a balance part arranged on the outwards-extending part of the bottom plate and used for balancing stress and supporting the cable duct bank. According to the invention, the problem of differential settlement between the cable duct bank and the cable working well can be well solved, the construction is convenient, the period is short, and the required investment is less.

The invention discloses a construction process of a non-uniform settlement control structure for an airfield pavement roadbed passed by a high-speed rail tunnel. The construction process comprises thefollowing steps: cleaning and leveling a construction site, and pouring plain concrete; dismantling part of foundation pit maintenance walls; filling a plain soil above the plain concrete in a layered mode, pouring a foam light soil foundation on the plain soil in a segmented, partitioned and layered mode, or laying reinforced soil layers in a layered mode, laying geogrids between the reinforcedsoil layers in a layered mode, laying geocells on the reinforced soil layers in a layered mode, laying broken stones on the geocells, and setting a plurality of deformation joints in the longitudinaldirection; carrying out construction of a pavement structure layer and other ancillary facilities, and forming the roadbed non-uniform settlement control structure after the construction process is finished. The construction process has the advantages that the overall uniformity of the soil foundation is improved, and the non-uniform settlement volume of the soil foundation is adjusted; the construction process is convenient, the construction period is shortened and the problem of uneven settlement of the roadbed when the high-speed rail tunnel passes through the airfield pavement is successfully solved.

The invention relates to an optimal filling thickness control method for coal gangue and belongs to agricultural reclamation methods for the coal gangue. The control method comprises the steps: under the condition of selected compacting equipment, firstly, determining critical layering thickness of the coal gangue, then, determining the optimal layering thickness according to an object function model with minimal total compacting times, and finally, calculating filling super high amount; and during construction, carrying out filling by adopting a strip stacking method, and controlling the quality of filling and compacting by adopting a leveling method. The method has the advantages that uniform-thickness layered filling is carried out, and thus, the filling effect is the best; and the uniformity is guaranteed to the maximum, the compacting times are reduced to the maximum, the instability and non-uniform settlement of the gangue are lowered, and the leveling of farmland is guaranteed. Critical thickness control is carried out; during the layered filling, the filling thickness cannot exceed critical thickness, so that the control method is the most effective control method for disadvantageous engineering characteristics of the gangue, and disadvantageous characteristics such as weathering, swelling-shrinkage, spontaneous combustion and corrosion of the gangue are effectively controlled. The filling cost of the coal gangue is reduced; and on one hand, the engineering quality is guaranteed, and on the other hand, the engineering cost is reduced.

The invention provides a moist curing method for accelerating subsidence and stability of coal gangue filling reclamation, and belongs to the method for agricultural or forestry reclamation of coal gangues. The moist curing method comprises the following steps: after filling a subsidence land by using the coal gangues, consciously filling water to soak a coal gangue aggregate, and accelerating subsidence and stability of the coal gangues; and stripping collapse surface soil by 1.0 meter at first before the rainy season, pouring the coal gangues in a collapse pit until the distance from the coal gangues to an earth surface by a designed elevation, leveling a coal gangue site, filling water in the site until coal gangue bodies are submerged, maintaining until the rainy season is finished, compacting for 4-5 times by using compacting equipment, and finally refilling the collapse pit by using the surface soil and leveling the site. The moist curing method has the advantages that (1) the collapse pit is refilled with the coal gangues at a time, and layered filling compaction is not required, so that reclamation cost is greatly reduced; (2) adverse effects of hydrophilic substances in the coal gangues to subsidence are eliminated, uniformity of subsidence is guaranteed to a maximum extent, compaction times are reduced, and leveling of a farmland is guaranteed; and (3) effects of rising and falling of groundwater level to coal gangue filling reclamation lands are reduced.

The invention discloses a construction method of a vibro-impact gravel pile composite foundation with a down-the-hole hammer combined with a pilot hole, comprising the following steps: 1. Leading hole: using a pneumatic down-the-hole hammer to penetrate the mountain riprap stratum to establish a leading hole; 2. 1. Move the machine: After establishing the lead hole at a certain pile point, move the down-the-hole hammer drilling rig to the next pile point, and continue to build the lead hole; Introducing the hole; 4. Forming the hole: control the high-pressure water pump and the vibrating device and forming the hole to the set depth; 1.0 ~ 1.5m away from the bottom of the hole; 6. Filling: put gravel into the hole one by one, and carry out vibratory compaction; 7. Pile formation: repeat step 6 until the filler is densified to the top of the pile; 8. Follow steps 1 to 7 , until all the set pile points of the foundation are finished making piles. The invention has the advantages of simple process, convenient operation and fast construction speed, and can increase the bearing capacity of the foundation by 3 to 5 times.

The invention discloses a device for solving the problem of local differential settlement of a pipeline through combination of a rotating compensation device and a hinge compensation device. The device comprises a first pipeline body (3), a second pipeline body (4) and a third pipeline body (5). The rotating compensation device (1) is mounted on the first pipeline body which communicates with the second pipeline body. The hinge compensation device (2) is mounted between the second pipeline body and the third pipeline body. The rotating compensation device and the first pipeline body are both horizontally arranged. According to the device, through combination of the rotating compensation device and the hinge compensation device, the problem of differential settlement of the pipeline caused by bracket base settlement can be solved, and the device is suitable for the situation that settlement of different degrees exists on the both sides of the pipeline.

The invention discloses a frame type embankment pond structure. The frame type embankment pond structure comprises a solid filling section arranged at an existing shoreline, a bearing platform section arranged in a deep water area and a frame section connecting the solid filling section, wherein the solid filling section comprises a wave wall and a fixed base, the fixed base is sequentially provided with a densely-arranged cast-in-place pile wall entering a pebble bearing layer and a plurality of cast-in-place piles in the direction from water to the shore, the bearing platform section comprises an embankment top platform, a plurality of bearing platforms and a plurality of supporting columns, the supporting columns are arranged between the bearing platforms and the embankment top platform and support the embankment top platform, a plurality of PHC piles entering a pebble bearing layer are arranged on the bearing platforms, the frame section comprises a plurality of prefabricated square piles entering the pebble bearing layer, a concrete cast-in-place top girder arranged at the tops of the prefabricated square piles and a concrete cast-in-place top plate laid on the concrete cast-in-place top girder, the concrete cast-in-place top plate is connected with the embankment top platform and the wave wall, pile tips of the prefabricated square piles are H-shaped steel sheet pile shoes, the wave wall and the concrete cast-in-place top girder are arranged in a split mode, connecting bosses are arranged at the adjacent positions of the wave wall and the concrete cast-in-place top girder, and a concrete cast-in-place top plate is laid between the connecting bosses.

The invention discloses a reinforcing structure and reinforcing method for a surrounding stratum of a shield and pipe-jacking tunnel. The reinforcing structure comprises a reinforcing pile and a connecting piece, the connecting piece is arranged in a pipe piece, the reinforcing pile is of a hollow structure, the reinforcing pile penetrates through the connecting piece to be driven into the surrounding stratum of the tunnel and is fixedly connected with the pipe piece through the connecting piece, grouting holes are formed in the pile wall of the reinforcing pile, and grouting is conducted on the surrounding stratum of the tunnel through the grouting holes. The reinforcing structure is constructed in the tunnel, is simple in structure and low in cost, is not limited by conditions such as ground traffic, pipelines and buildings, and is capable of guaranteeing the reinforcing effect and exerting the settlement reduction effect of a root pile composite foundation, so that the situation that normal operation of the tunnel is affected due to the fact that settlement of the later operation tunnel is increased and even the pipe piece is damaged due to the poor reinforcing effect of a soft foundation is avoided.

The invention discloses a semi-rigid base layer for preventing bumping at bridgehead and a construction process. A first rigid base layer is fixedly connected with a bridgehead transition slab, a common base layer is fixedly connected with the first rigid base layer, a first semi-rigid base layer is fixedly connected with the first rigid base layer, and a second rigid base layer is fixedly connected with the first semi-rigid base layer; the first semi-rigid base layer is fixedly connected with the first rigid base layer, the second semi-rigid base layer is fixedly connected with the second rigid base layer, an asphalt concrete surface layer is fixedly connected with the second semi-rigid base layer, a first geogrid is fixedly connected with the first semi-rigid base layer, and a second geogrid is fixedly connected with the second semi-rigid base layer; the first semi-rigid base layer and the second semi-rigid base layer are formed by matching lime, fly ash and gravel, one side of the first semi-rigid base layer and one side of the second semi-rigid base layer are connected with the bridge end transition slab, and the other side of the first semi-rigid base layer and the other side of the second semi-rigid base layer are connected with the common base layer, so borne loads are evenly distributed, and a real transition section is formed between the bridge end transition slab and the common base layer; and a problem of non-uniform settlement between the bridge abutment and the embankment is solved.

The invention relates to a large rockery outer package first-layer supporting structure and a construction method thereof, and aims to solve the problem of non-uniform settlement between an existing rockery outer package and a main building. The device comprises a main body frame, a plurality of shape-finding supporting trusses and shape-finding supporting frames, the main body frame is fixedly connected to the side face of a building main body structure, the multiple shape-finding supporting trusses are vertically arranged at intervals, the shape-finding supporting frames are arranged between every two adjacent shape-finding supporting trusses, and one sides of the shape-finding supporting trusses and one sides of the shape-finding supporting frames are connected to the main body frame; and the other side of the connecting piece is matched with and fixedly connected with the outer packing of the rockery. The construction method comprises the steps that the main body frame is fixedly connected to the side face of a building main body structure, the multiple shape-finding supporting trusses are vertically arranged at intervals, the shape-finding supporting frames are arranged between every two adjacent shape-finding supporting trusses, one sides of the shape-finding supporting trusses and the shape-finding supporting frames are connected to the main body frame, and the other sides of the shape-finding supporting trusses and the shape-finding supporting frames penetrate through rockery outer packages and extend to the outer sides of the rockery outer packages; and after construction is completed, the exposed parts of the chord members and the transverse rods are cut off.

The embodiment of the invention provides a road rigid pile and preloading soft foundation treatment transition structure and a construction method, and belongs to the technical field of road foundation treatment. The transition structure sequentially comprises a base rigid pile transition layer, a first embankment filling layer and a first pre-pressing layer from bottom to top, and the base rigid pile transition layer is inserted into a foundation; the first embankment filling layer comprises a common embankment filling layer filled with common filler; the first prepressing layer is laid above the first embankment filling layer; wherein the first embankment filling layer further internally comprises a light embankment structure layer, the light embankment structure layer is laid on the common embankment filling layer, and the density of filler in the light embankment structure layer is smaller than that of filler in the common embankment filling layer; and in the extending direction from the rigid pile processing section to the preloading section, the ratio of the light embankment structure layer in the first embankment filling layer is gradually reduced. The transition structure can solve the problem of differential settlement of the transition section roadbed in two different soft foundation treatment forms.

The invention discloses a large-scale tank body foundation provided with communication channels, and a construction method of the large-scale tank body foundation, and solves the problem that a conventional large-scale tank body provided with reinforced concrete channels which communicate with each other is liable to incline and topple over. A box-shaped concrete inner channel (4) which is independently cast is formed in the inner side of an inner and outer channel communication hole (3); asphaltic felt (9) is arranged between the box-shaped concrete inner channel (4) and the inner side wall of a rigid concrete annular wall (2) near the inner and outer channel communication hole (3); a box-shaped concrete outer channel (10) is arranged on the outer side of the inner and outer channel communication hole (3); the rigid concrete annular wall (2) outside the box-shaped concrete inner channel (4) which is independently cast is filled with grading sandy gravel (5); an asphaltic sand pad layer (6) is arranged on the top end surface of the grading sandy gravel (5); and a large-scale tank body (7) is arranged on the asphaltic sand pad layer (6). The large-scale tank body foundation is low in construction difficulty, and low in investment cost.