97results about How to "Reduce excavation" patented technology

The invention discloses a split type modularized inclined vertical rib stator base which is composed of an upper inclined vertical rib, a lower inclined vertical rib, an upper annular plate, a middle annular plate, a lower annular plate, an inter-annular rib plate, a lower annular circumferential reinforcing plate and a lower annular radial reinforcing plate, the upper inclined vertical rib and the lower inclined vertical rib are combined and fixed to form a main vertical rib structure, all layers of annular plates are welded and fixed in the circumferential direction, and the inter-annular rib plate is vertically welded. The reinforcing plate reinforces the lower annular plate. The main vertical rib structure is decomposed into the upper inclined vertical rib and the lower inclined vertical rib, so that the hoisting height of the stator is compressed, the low-rail integral hoisting of the stator frame can be realized, and the engineering cost is reduced; and the transportation requirements of high-altitude areas are met. The split mode of the main vertical rib structure can optimize the on-site installation process of the generator set, and the requirement for the structural stability of the giant water-turbine generator set is met. And the device can be modularly designed, is suitable for large and giant water-turbine generator sets with different structures and sizes, is flexible in structure, and has wide engineering application and popularization values.

The invention relates to the field of water supply systems, and discloses an urban pipeline leakage monitoring system based on a DMA partition management technology, and the system comprises a data collection module which is used for collecting the data of a flowmeter, a pressure sensor and a hydrophone in a DMA partition; the data preprocessing module is used for preprocessing the data; the time sequence analysis module is used for performing seasonal and trend decomposition and nonlinear time sequence analysis on the preprocessed data; the leakage detection module is used for predicting and detecting leakage; the noise analyzing and positioning module is used for analyzing and determining the specific position of the leakage point of the pipe section through the noise data of the hydrophone; and the real-time prediction alarm module is used for processing data in real time and triggering alarm when leakage is detected. The system not only can predict a potential leakage event in advance, but also can quickly position and give an alarm when leakage occurs, so that the operation efficiency and safety of the water supply system are greatly improved.

According to the post-grouting expanded-base composite tubular pile and the construction method, an expanded-base technology and a post-grouting technology are combined, pile end post-grouting can efficiently fill pores of an expanded-base part, the strength and compactness of a pile end soil body are remarkably enhanced, the bearing performance of a pile foundation is improved, meanwhile, the settlement amount of the pile foundation is effectively reduced, and the construction efficiency is improved. The stability and the safety of the building in the long-term use process are ensured; a technical solution; comprising a grouting pipe, a prefabricated tubular pile and a composite pile outer wrapping body. The grouting pipes are symmetrically arranged in the prefabricated tubular pile in the axial direction, the outer sides of the grouting pipes are wrapped with water stop adhesive tape, and the length of the grouting pipes is larger than that of the prefabricated tubular pile. A composite pile wrapping body is arranged on the outer side of the prefabricated tubular pile, the prefabricated tubular pile is in a cylindrical shape, the upper portion of the composite pile wrapping body is also in a cylindrical shape, and the lower portion of the composite pile wrapping body is in a circular truncated cone shape.

The narrow fat groove assembly type subway station middle force transmission structure comprises a first force transmission piece or / and a second force transmission piece, the first force transmission piece is arranged on the side wall and close to the constructed side of the side wall, the second force transmission piece is arranged on the side wall and close to the non-constructed side of the side wall, and the first force transmission piece and the second force transmission piece are suitable for narrow fat grooves. Construction in the narrow fertilizer groove is facilitated, and the effect of transmitting soil pressure in the narrow fertilizer groove can be achieved. The invention further provides a construction method, the construction method is used for construction of the middle force transfer structure of the narrow fat groove assembly type subway station, and the middle force transfer structure of the narrow fat groove assembly type subway station and the construction method are suitable for the narrow fat groove and construction of the assembly type subway station without a boss on the outer side of a contour. The excavation volume of earth and rocks of the foundation pit and the volume of an enclosure structure are reduced, the occupied area of the tense ground surface of a city is reduced, the relocation and transformation workload of pipelines and the relocation workload of existing buildings are reduced, and the construction cost and the construction period are reduced.

The present invention discloses an annular cutter disc including a cutter holder body and a cutter disc assembly arranged on the cutter holder body; the cutter disc assembly includes an inner cutter disc, an outer cutter disc, a first telescopic member and a second telescopic member; the present invention adopts the form of an inner cutter disc and an outer cutter disc, and the cutter disc can be changed in diameter through the telescopic action of the second telescopic member to achieve graded excavation, and the excavated annular groove can provide space for the pipe segment to enter the rock. The present invention also discloses a tunneling system, and the present invention drives the annular cutter disc to construct underground through a driving body, thereby improving construction efficiency and safety. The present invention also discloses a tunneling method, and the tunneling method of the present invention can be applied to the working conditions when soft soil or soft rock is converted to hard rock formations. The present invention adopts the form of graded excavation, and the outer cutter disc expands the annular groove to the outer diameter of the pipe segment, which is convenient for the pipe segment to sink into the rock to ensure the orderly progress of the construction; concrete and pipe segments are used for sealing and water stopping, creating favorable conditions for subsequent excavation.

The invention discloses an abrupt slope mountain photovoltaic micro pile foundation construction method under complex geological conditions, and relates to the technical field of photovoltaic foundation construction. According to the method, in order to solve the problems that the slope of the abrupt-slope mountain land is large, the terrain is complex, large machines are difficult to operate, and the ecological environment is sensitive, the structural form of small-diameter pile groups and chamfered triangular bearing platforms is adopted, the heavy-load unmanned aerial vehicle hoisting technology is combined, and minimally invasive, efficient and green construction is achieved. The core of the method comprises the steps of construction preparation, measurement positioning, hole forming, reinforcement cage and bearing platform reinforcement installation, material transportation based on the heavy-load unmanned aerial vehicle, concrete pouring, maintenance and the like. The method is high in environmental adaptability, capable of overcoming 15-45-degree abrupt slopes and complex geological conditions and greatly reducing earth excavation and vegetation damage, high in structural bearing capacity and low in manufacturing cost, solves the problems that a traditional construction method is low in efficiency, serious in ecological damage and the like, and is suitable for mountain photovoltaic power station projects, particularly suitable for photovoltaic foundation construction of ecological sensitive areas.

The utility model relates to a tunnel structure combining diversion, water delivery, emptying and ecological discharge. The method is suitable for the technical field of water conservancy and hydropower engineering. According to the technical scheme, the tunnel structure combining flow guiding, water conveying, emptying and ecological discharging is characterized by comprising a flow guiding tunnel, the first end of the flow guiding tunnel is located on the upstream of a dam, and the second end of the flow guiding tunnel is located on the downstream of the dam; the water intake tower is arranged at the first end of the diversion tunnel, at least two water intake ports located at different heights are formed in the water intake tower, and the water intake ports are provided with water intake gates; the concrete plug is arranged in the diversion tunnel and can be used for plugging the diversion tunnel, and a pressure steel pipe communicated with the upstream and the downstream of the plug is arranged in the plug; at least part of the water conveying steel pipe is located in the diversion tunnel on the downstream side of the concrete plug, and a water inlet of the water conveying steel pipe communicates with the pressure steel pipe in the concrete plug; the blow-down pipe is connected to the water conveying steel pipe and is provided with a control valve; and the ecological drainage pipe is connected to the blow-down pipe and is provided with a control valve.

The utility model belongs to the technical field of liquor making, and particularly relates to a Maotai-flavor liquor workshop which comprises a main workshop and an auxiliary workshop, and the main workshop is lengthwise and comprises longitudinal wall bodies located on the two transverse sides and transverse wall bodies located on the two longitudinal sides; the auxiliary house is arranged on the outer side of one transverse wall body of the main power house, and a personnel and logistics channel is arranged on the outer side of the other transverse wall body of the main power house. According to the embodiment, the auxiliary houses, the personnel and the logistics channels are arranged on the two longitudinal sides of the main plant building, the arrangement mode of the auxiliary houses, the personnel and the logistics channels is beneficial to digesting the height difference in the site, only the pedestrian passageways and the drainage ditches need to be built on the transverse outer side of the main plant building, the excavation and backfill amount is relatively small, the excavation amount and the backfill amount can be effectively reduced, and the construction cost is reduced. And low-disturbance development is implemented, so that the damage to the mountain is reduced, and the natural ecological environment is protected.

This utility model relates to the technical field of welding construction platforms, specifically to a construction platform for welding the outer side of steel pipes on steep slopes. It includes an operating platform, a support mechanism, and connecting components. The top surface of the operating platform is constructed as an operating surface. The support mechanism includes at least two lattice columns, and the connecting components include several anchor rods. The anchor rods can provide a limiting connection to the bottom end of the lattice columns. The operating platform provides an operating surface for welding the outer circumferential seam of the pipe. Workers can stand on the operating surface at the top of the platform to perform welding operations at corresponding positions. Simultaneously, the support mechanism provides stable support for the operating platform. The support mechanism can be anchored to the slope surface by multiple anchor rods. The anchor rods can be fixed by drilling and implanting, utilizing the anchoring force of the deep soil and rock mass of the slope to fix the lattice columns. This helps reduce the amount of slope excavation and minimizes the impact of the construction platform erection on construction costs and schedule.

The present invention discloses an improved assembled mountain river bank protection structure, comprising: a plurality of front-row pile foundations that are set at intervals along the direction of water flow at the bank of the mountain river; a plurality of rear-row pile foundations that are set at intervals along the direction of water flow at the bank of the mountain river and located at the rear side of the plurality of front-row pile foundations; retaining plate piles that are inserted at the bank of the mountain river and located at the upper rear side of the plurality of front-row pile foundations; a front guide beam that is constructed on the pile tops of the plurality of front-row pile foundations and is respectively connected to each of the front-row pile foundations; a rear guide beam that is constructed on the pile tops of the plurality of rear-row pile foundations and is respectively connected to each of the rear-row pile foundations; and an assembled retaining wall cap that is placed between the front guide beam and the rear guide beam and is supported by the front guide beam and the rear guide beam. A construction method for the above-mentioned improved assembled mountain river bank protection structure is also disclosed. The present invention does not require the construction of a cofferdam in a mountain river, thereby reducing earth excavation in a limited space of the river.

The invention relates to the technical field of tunnel engineering, and provides a construction method of a bealock section large-span multi-arch tunnel entry structure, which comprises the following steps: constructing a first pre-reinforcing pile assembly and a second pre-reinforcing pile assembly, excavating a temporary side slope to construct a middle pilot tunnel, excavating the middle pilot tunnel, and constructing a middle partition wall in the middle pilot tunnel after the middle pilot tunnel is communicated. And backfilling soil and stones to the bottom height of the protective arch, constructing the protective arch located above the left tunnel hole and the right tunnel hole, constructing an open cut tunnel section and an end wall type tunnel portal, backfilling soil at the top of the protective arch to the designed height, and then synchronously constructing the left tunnel hole and the right tunnel hole to the hidden tunnel section. According to the method, synchronous construction of the left main hole and the right main hole of the multi-arch tunnel can be achieved, the construction procedures of the multi-arch tunnel are greatly reduced, safety is high, meanwhile, the side slope is effectively reinforced, the side slope is prevented from collapsing in the excavation process, the design method of the protection arch is further provided, the determined protection arch can meet the structural requirement, and construction convenience can be improved.

The application relates to a narrow-base tower deflection pile cap foundation. The application is suitable for the technical field of narrow-base tower foundation of power transmission lines. The application aims to provide a narrow-base tower deflection pile cap foundation. The technical scheme adopted by the application is as follows: a narrow-base tower deflection pile cap foundation comprises a cap buried below the ground, a connecting column structure vertically arranged on the top of the cap and used for connecting the tower leg of the narrow-base tower, and a group of inclined piles vertically arranged on the bottom of the cap, wherein the group of inclined piles is arranged correspondingly to the tower leg of the narrow-base tower and is eccentrically arranged, so that the bending moment caused by the partial horizontal load of the upper part can be offset.

This invention relates to the field of engineering construction technology, specifically a construction method for a tunnel on a high slope. The method includes: S01, excavating the top of the tunnel and providing slope support; S02, excavating the right side of the tunnel and providing temporary support; S03, excavating the left side of the tunnel and providing initial support, pre-anchor support, and temporary steel frame support; S04, pouring the left tunnel structure and bottom slab; S05, constructing temporary steel frame support and dismantling the existing temporary steel frame support; S06, constructing the right tunnel structure; S07, constructing ancillary structures such as drainage ditches, cable trenches, and road surfaces within the tunnel; S08, backfilling and counter-pressure at the top of the tunnel, constructing a top seepage-proof layer, drainage ditches, and landscaping. This invention reduces excavation volume, minimizes damage to the natural environment of the mountain, avoids slope deformation and instability caused by prolonged exposure, and ensures the safe and smooth progress of the project. It also avoids structural damage to the tunnel due to water accumulation and insufficient backfill compaction.

The present application relates to the technical field of tunnel engineering, in particular to a kind of soft weak surrounding rock shallow-buried unsymmetrical pressure tunnel portal section excavation method, comprising the following steps: S10, slope excavation tunnel excavation contour line above the natural slope of arch top and support;S20, vertical steel pipe pile is built outside tunnel excavation contour line on the side of mountain;S30, set range in tunnel arch portion is built reinforced concrete arch cap;S40, the slope toe of the reinforced concrete arch cap on the side of mountain that has been excavated and supported is backfilled;S50, build tunnel outside retaining wall;S60, the upper part of the reinforced concrete arch cap is backfilled and counter-pressured;S70, tunnel subsurface excavation and support are carried out.The present application can reduce the disturbance of lower construction to slope, avoid the construction risk of dangerous deep foundation pit engineering, improve construction reliability, speed up construction progress and protect ecological environment.

This utility model discloses a support structure for horizontal pipe bends in confined spaces, relating to the field of pipe laying and support technology. It includes multiple support units arranged at arc intervals along the thrust direction of the bend. Each support unit comprises a steel column vertically anchored to the foundation surface, a pressure plate fixedly connected to the upper part of the steel column, and an arc-shaped support plate fixedly disposed above the pressure plate to support the bend. The support surface of the arc-shaped support plate is adapted to the outer wall contour of the bend, forming a good contact surface. This utility model, through modular and prefabricated design, achieves miniaturization, lightweighting, and rapid construction of the support structure, making it particularly suitable for pipeline projects in densely built-up areas and other confined workspaces, exhibiting significant practicality and economic benefits.

The utility model relates to building construction, in particular to a cast-in-place concrete inspection well construction device. Comprising a template, the template is a steel template, the template comprises an inner template and an outer template, the inner template is nested in the outer template, a bottom plate is arranged at the lower end of the inner template, pouring areas are arranged between side plates of the inner template and the outer template and between the bottom plate of the inner template and a well bottom, and a split bolt is arranged between the inner template and the outer template; an attached vibrator is arranged on a bottom plate of the inner template, and an attached vibrator is arranged on a side plate of the outer template; preformed holes are symmetrically formed in side plates on the two sides of the inner template and the outer template, hole cover dies penetrate through the preformed holes, and the hole cover dies are of hollow structures. According to the utility model, the rapid cast-in-place construction of the concrete inspection well is realized, the earth excavation volume of a foundation pit is reduced, the construction cost is saved, compared with a masonry process, the construction efficiency is improved, the labor input is reduced, the construction quality of the concrete inspection well is effectively ensured, and the service life is prolonged.

The narrow fat groove assembly type subway station air bag type force transmission structure comprises an air bag assembly, an inflation assembly and a grouting assembly, the air bag assembly is arranged in a fat groove and located between a soil body enclosure structure and a prefabricated side wall, the air bag assembly is connected with the inflation assembly, one end of the grouting assembly is located between the soil body enclosure structure and the prefabricated side wall, and the other end of the grouting assembly is connected with the inflation assembly. After pressure stress is effectively transmitted through the air bag assemblies, the overall structure of the station can be assembled, then high-strength cement grout is poured into the fertilizer grooves, complete filling of the fertilizer grooves is achieved, the method is suitable for construction of the fabricated subway station without a boss on the outer side of a contour, the earthwork excavation volume of a foundation pit and the volume of an enclosure structure are reduced, and the construction cost is reduced. The invention further provides a construction method, and the construction method is used for construction of the air bag type force transmission structure of the narrow fat groove assembly type subway station and the air bag type force transmission structure of the narrow fat groove assembly type subway station, and the construction method is used for construction of the air bag type force transmission structure of the narrow fat groove assembly type subway station.

The utility model discloses a water delivery arrangement system, particularly discloses a water delivery arrangement system for relieving low-temperature water drainage, and belongs to the technical field of design and construction of water conservancy and hydropower engineering structures. According to the water delivery arrangement system for relieving low-temperature water drainage, the excavation work amount is remarkably reduced, and it can be effectively ensured that water with the relatively high temperature and the relatively sufficient flow can be taken at any time. The water conveying arrangement system comprises a water storage reservoir which is arranged on a main stream river channel through a river blocking dam, and is characterized by further comprising a branch ditch river channel, a water conveying pipeline and a water inlet tower arranged at the input end of the water conveying pipeline, the branch ditch river channel is communicated with the water storage reservoir, and the water inlet tower is arranged on the branch ditch river channel; the river bottom elevation of the branch ditch river channel is higher than the riverbed elevation at the corresponding position of the main stream river channel and lower than the dead water level elevation of the reservoir; in the water taking process, the water inlet tower obtains stored water in the reservoir area of the water storage reservoir layer by layer from top to bottom through the branch ditch river channel.

The application provides a setting method of an effective depth of a shock isolation trench. The setting method of the shock isolation trench is as follows: determining a shock influence range according to a connecting line of a region boundary line adjacent to a side of an existing building of a vibration source range and an angle point of an outer contour of the existing building, then determining a length of the shock isolation trench according to the shock influence range, then controlling the vibration source to move on the region boundary line adjacent to the side of the existing building of the vibration source range, and then determining an effective shock isolation effective depth of the shock isolation trench by monitoring a measured horizontal acceleration and a measured vertical acceleration at the angle point of the outer contour of the existing building and comparing the measured horizontal acceleration and the measured vertical acceleration with a standard horizontal acceleration and a standard vertical acceleration of the region during the moving process. The application considers the law of vibration propagation attenuation with distance and quantitatively digs the effective depth of the shock isolation trench, reduces the earthwork excavation of the shock isolation trench, reduces the construction cost, and effectively blocks the propagation of the vibration.

The invention discloses a reservoir Z-shaped asphalt concrete reservoir bottom structure and a construction method thereof.The structure comprises a low reservoir bottom face, a high reservoir bottom face and a Z-shaped anti-seepage body connecting the low reservoir bottom face and the high reservoir bottom face, and the Z-shaped anti-seepage body comprises a lower reverse arc face, a slope face and an upslope angle arc face which are sequentially arranged from bottom to top; the construction method comprises the following steps of: 1, leveling a site at the bottom of the warehouse in a zoning manner; 2, determining the gradient ratio of the slope surface of the Z-shaped anti-seepage body; 3, partition construction of the bottom of the reservoir; 4, building a temporary transportation road; fifthly, the Z-shaped anti-seepage body is constructed from bottom to top through the construction equipment set; and 6, dismantling the temporary transportation road. The slope protection structure is additionally arranged on the Z-shaped anti-seepage body to guarantee the construction quality, the conditions of continuous cold joints and non-compact rolling of the upslope angle are avoided through layered and segmented construction of the upslope angle asphalt concrete, the deformation adaptability of the reservoir bottom asphalt concrete is improved, the reservoir bottom cracking risk is reduced, the construction quality and anti-seepage performance of the asphalt concrete are guaranteed, and the construction period is shortened. Meanwhile, a large amount of excavation and filling are reduced, and the construction period is prolonged.

The invention relates to a BIM (Building Information Modeling)-based underground pipeline semi-excavation pipe jacking method under complex environmental conditions. The method comprises the following steps: constructing a BIM three-dimensional model of a construction area; the positions and sizes of new pipeline construction areas are determined in the BIM three-dimensional model according to the positions of buildings around the planned new pipeline and existing pipelines, and every two adjacent new pipeline construction areas are separated by the existing pipelines transversely penetrating through the planned new pipeline; construction of a supporting system is conducted in the new pipeline construction area, and the supporting system is constructed along the edge of the new pipeline construction area and defines a closed area; earthwork is excavated in a closed area formed by the supporting system to form a foundation pit, and the depth of the foundation pit is the top depth of the planned new pipeline; and in the closed area formed by the supporting system, the working well is constructed at one end, the receiving well is constructed at the other end, and pipe jacking construction is conducted in the closed area formed by the supporting system. According to the method, buildings around the construction area can be effectively protected, and normal construction of new pipelines can be guaranteed.

The invention relates to the technical field of bridge engineering, and provides a design method of a gravity type anchorage suitable for complex mountain terrains, which comprises the following steps of: calculating an anti-sliding safety coefficient and an anti-overturning safety coefficient of a current design structure of the anchorage in a region where the current design structure is located; and when any one of the condition that the anti-sliding safety coefficient is smaller than a first preset threshold value and the condition that the anti-overturning safety coefficient is smaller than a second preset threshold value is not met, drainage design is conducted on the area where the anchorage is located, so that the underground water level of the area where the anchorage is located is lowered till the anchorage meets the design requirement. According to the application, the drainage water level design is creatively combined with the anchorage, and the volume of concrete of the anchorage is reduced by reducing the underground water level and reducing the buoyancy of underground water to the anchorage; and the later-stage maintenance cost can be greatly reduced, the durability of the anchorage is improved, the economic effect is remarkable, the defects of a traditional gravity type anchorage are overcome, and important guiding significance is achieved for guiding the structural design and optimization of the suspension bridge gravity anchorage under the complex foundation condition of a mountainous area.

The invention provides a metro foundation pit secant pile shear key construction method without a feet-lock anchor cable, which comprises the following steps of: S1, determining a pile position along a foundation pit sideline according to a drawing; s2, rotary digging and hole forming are carried out, and meat pile holes and shear key holes are formed; shear key holes are positioned at the bottoms of the reinforced pile holes; s3, a reinforcement cage is put in, concrete is poured, and reinforced piles and shear keys are formed; s4, holes are formed in the plain piles, the bottoms of the holes enter the bed rock surface by more than 1 m, then concrete is poured, the plain piles are formed, and the plain piles are engaged with the meat piles; s5, the steps S1 to S4 are repeated, and a closed foundation pit is formed; and S6, subway foundation pit construction is completed. According to the metro foundation pit secant pile shear key construction method without the feet-lock anchor cable and the rotary excavating drill bit, a feet-lock waist beam and the feet-lock anchor cable are omitted, external expansion of the foundation pit is not needed, earth and stone excavation is reduced, mass migration and modification of surface pipelines are avoided, the influence on the surrounding environment is reduced, land resources are intensified, and the construction efficiency is guaranteed.

The utility model relates to a temporary supporting joint which comprises a plurality of vertical profile steel supports, a plurality of supporting base plates, a plurality of longitudinal connecting sleeves and a plurality of longitudinal connecting ribs. The supporting base plates comprise top base plates and bottom base plates which are in one-to-one correspondence, the top base plates and the bottom base plates are located in top surrounding rock and bottom surrounding rock at the intersection of the underground excavation air duct and the protective tunnel main body enclosure structure correspondingly, and the top base plates and the corresponding bottom base plates are located in the same vertical plane; the vertical profile steel support is arranged in the vertical direction, the horizontal section of the vertical profile steel support is in an I shape, and the top end and the bottom end of the vertical profile steel support are welded to the top base plate and the bottom base plate respectively. The longitudinal connecting sleeve is welded on the web plate, the longitudinal connecting rib is inserted into the longitudinal connecting sleeve, and the longitudinal connecting rib is arranged along the horizontal direction. According to the utility model, the air duct can be synchronously excavated on the outer side of the protective tunnel side wall, and the excavation and backfill work amount is reduced, so that the manufacturing cost is reduced.

The utility model provides an ecological bank protection structure, and relates to the technical field of ecological bank protection. The ecological bank protection structure comprises a blocking beam, a plurality of baffles and anchor rods, the blocking beam is attached to a river bank slope, the baffles are sequentially embedded in the blocking beam and oppositely arranged, and a hollow structure is formed between every two adjacent baffles and used for filling cultivation and planting soil for planting plants; one end of the anchor rod sequentially penetrates through the blocking beam and the river bank slope so that the blocking beam can be fixedly connected with the river bank slope. According to the ecological revetment structure obtained through the design, the blocking beams, the baffles and the anchor rods are matched together to achieve the effects of stabilizing the embankment, resisting flood scouring and planting climbing vines to achieve ecological treatment of a river channel, so that the ecological frame embankment is small in fracture surface, small in occupied area and small in excavation volume during implementation, and the construction investment cost is reduced.

The invention relates to the field of foundation pit excavation, and discloses a reinforcement cage with an anchorage device for reducing land acquisition, the reinforcement cage comprises a reinforcement cage and a steel support, the reinforcement cage comprises a plurality of main reinforcements, the steel support comprises an arc-shaped panel, a connecting part and a base which are connected in sequence, and the main reinforcements penetrate through the connecting part and are fixedly connected with the connecting part; the base is arranged on the side, close to the center of the reinforcement cage, of the arc-shaped panel and used for guiding the anchor cable. And the base and the connecting part form an anchorage device operation cavity which is used for embedding the anchorage device in the pile body, so that numerous bulges are prevented from being formed on the side wall of the foundation pit.

The utility model belongs to the technical field of electric power civil engineering, and relates to an indoor cable tunnel below zero meter, which comprises a building structure and a bottom plate, a top plate and peripheral side walls of the cable tunnel, the building structure comprises foundation bearing platforms and frame columns, the foundation bearing platforms are arranged under the ground and arranged on the periphery, and the frame columns are arranged on the bottom plate and the top plate. The frame columns are arranged in the vertical direction of the center of the foundation platform, the side wall of the foundation platform is connected with a bottom plate, peripheral side walls are arranged in the space defined by the frame columns and connected with the frame columns, the height of the peripheral side walls is smaller than that of the frame columns, and the bottom plate is connected with the bottom plate. The house structure further comprises a transverse bearing structure and a longitudinal bearing structure which are connected with the bottom plate and the top plate respectively. According to the cable tunnel, original structural members of the cable tunnel and house structural members are designed in a combined mode and fused into a whole, the use amount of cast-in-place concrete is saved, the on-site foundation pit excavation amount is reduced, the construction cost is reduced, and the construction period of a project is shortened.

The invention provides a deep foundation pit inter-pile leakage treatment method, and relates to the technical field of foundation pit construction.The treatment method comprises the steps that a water seepage source and a water seepage channel are determined, and a soil body is tamped; grouting the water seepage source; mounting a flow guide pipe to block the water seepage port; injecting concrete grout into the water seepage channel area to block the water seepage channel; and obliquely inserting a sleeve valve pipe above the water seepage channel, and grouting to seal a water seepage source and the like. The leakage treatment method has the beneficial effects that after the foundation pit leaks, the soil body above the water seepage source is tamped firstly, the water seepage amount of a water seepage opening in the side wall of the foundation pit is reduced, and the problem that the soil body on the side wall of the foundation pit collapses due to the fact that a large amount of water seeping from the water seepage source rushes out the soil body on the side wall of the foundation pit is solved; according to the leakage treatment method, when the water seepage source area is blocked, concrete grout can be injected in multiple directions of the water seepage source, so that the water seepage source can be fully sealed, the problem that the side wall of the foundation pit seeps water again is solved, and the leakage treatment quality and the foundation pit construction quality are improved.

The invention relates to the field of bridge construction, in particular to a tunnel excavation type skewback construction method which comprises the following steps: partitioning a skewback foundation into an upper tunnel, a middle tunnel and a lower tunnel; slope excavation is conducted to the bottom face position of a middle tunnel outlet, and a construction platform is formed; a middle tunnel advance support is constructed, a middle tunnel is excavated, and the excavation direction is from the river center to the bank side; after the middle tunnel is excavated in place, the lower tunnel is excavated; an arch support foundation lower area and a backfill area are poured in the middle tunnel and the lower tunnel; after concrete in the lower area and the backfill area of the skewback foundation is formed, an upper tunnel is excavated, and the excavation direction is from the river center to the bank side; according to the method, firstly, the skewback foundation is partitioned, then tunnel excavation is adopted for each partition, the skewback foundation is formed through pouring, the natural sloping excavation amount can be reduced, the spoil amount can be reduced, and the influence on the environment is small.

The utility model relates to the technical field of underground garage construction in the building industry, in particular to a multi-dimensional space stereo garage, which comprises a lower-layer firewall, an interlayer floor slab and an upper-layer firewall, so that the firewalls are in a Z-shaped three-dimensional space stereo design, and meanwhile, the requirements of fire fighting, national standards and the like are met. And arriving at any point of the basement ramp interlayer from the ground and arriving at the garage lower-layer ramp through the garage interlayer, so that the traffic organization streamline is clear. A circulating column net layout mode of (5.05 m + 6.1 m + 5.05 m + 5.05 m + 6.1 m + 6.1 m) * 8.1 m is adopted, a multi-dimensional three-dimensional parking space is formed in combination with the mode that the height of a lower layer is 2.7 m, the height of an upper interlayer is 2.9 m, and interlayer plates are hollowed out, the mode that parking spaces are arranged in a back-to-back mode is adopted, floor slab hollowed out is combined, and interlayer parking is arranged, so that the parking rate is increased by 80%. And the garage smoke exhaust room is arranged at the hollow part of the interlayer, so that the trend and installation of the exhaust pipe are facilitated, and the parking space is not occupied.