50 results about "Settlement (structural)" patented technology

The invention relates to the technical field of tunnel construction ground building risk assessment, in particular to a tunnel under-crossing building damage prediction and reinforcement method based on structural node angle variables. Comprising the following steps that S1, a free ground settlement curve is obtained according to soil layer data, and a building settlement curve is obtained after correction; s2, calculating the gradient of the settlement curve of the building, and judging whether the building is damaged or not according to the gradient value; s3, calculating a node angle variable of the building structure: calculating a node angle variable of a first layer of the building structure by using a difference value between a rotation angle and a rigid body rotation amount, and calculating node angle variables of the building structure and each layer by using a matrix displacement method layer by layer; and S4, the damage grades of the building structure are divided based on the node angle variables, and the building is reinforced according to the different damage grades. According to the method, possible damage to the building when the tunnel passes through the building can be predicted more accurately, targeted reinforcement measures are provided, and the safety of the ground building is protected.

According to the existing building lifting method based on additional settlement generated in the grouting process, settlement of one side of an existing building is larger than that of the other side of the existing building, additional settlement exists on the large-settlement side of the existing building, a supporting curtain is arranged, the portion, prone to additional settlement, of a large-settlement area is blocked, slurry is prevented from being lost outwards during follow-up grouting lifting, and the problem that the existing building is prone to additional settlement is solved. The lifting force is effectively restrained in an area needing to be lifted, and lateral support is provided; the anchor point is locked through local grouting, and then block-by-block circulating lifting is carried out; the structural stress of the soft foundation in the main lifting area tends to be stable firstly and does not continue to deteriorate, the problem of additional settlement is avoided, and the lifting precision is better guaranteed; according to the method, the main lifting area, the transition area and the stable area are arranged, space isolation and differential control are conducted on the grouting area, the pain points of global homogenization, stress unrestraint and risk management and control difficulty of traditional grouting are improved from the source, and generation of additional settlement can be eliminated easily.

Disclosed in the present application is a grouting, tilt rectification, and lifting method for raft foundation buildings. In the present application, taking the center point of a building as the origin, settlement monitoring points are arranged in the shape of the Chinese character "米" along axes corresponding to different directions, which can clearly reflect the displacement and settlement situation of points at the edges of and within the building, thus avoiding the occurrence of raft cracking or deformation caused by neglect of the interior of the building during lifting; holes are arranged obliquely and in rows on the basis of the settlement and tilt situation of the building, and each row of lifting holes is parallel to the boundary line between a primary lifting area and a secondary lifting area, making the positioning of the lifting holes more convenient, accelerating the construction progress, and improving construction efficiency. The building is subjected to area-by-area grouting and lifting, and changes in displacement value of lifting monitoring points are observed as lifting is performed, enabling the overall lifting situation and effect to be observed more directly and conveniently during lifting of the building and making the grouting and lifting process easier to control, thus avoiding structural damage and grout waste caused by excessive lifting, accelerating the construction progress, and improving construction quality.

The invention belongs to the technical field of building construction, and discloses a construction method of a stair structure, and the stair structure comprises a first platform, a second platform and a plurality of step beams. Firstly, a first platform, a second platform and a plurality of step beams are prefabricated, a foundation layer is constructed at the same time, a step-shaped slope is arranged on the surface of the foundation layer, then the first platform, the second platform and the step beams are installed on the step-shaped slope, constructions are constructed on the two sides of the step beams, and embedded pipe sets are arranged on the constructions according to the designed elevation of the step beams; and then the step beam and the building are connected, after the foundation layer is settled, grouting is conducted between the step beam and the step-shaped slope through the first embedded pipe, and after grouting is completed, the first embedded pipe and the second embedded pipe are blocked. According to the construction method of the stair structure, the construction efficiency can be improved, the bottom of the stair can be prevented from being separated from a backfill soil layer, and the bearing capacity and structural stability of the stair are guaranteed.

The utility model discloses a wall constructional column, and particularly relates to the technical field of wall constructional columns, the wall constructional column comprises a plurality of steel bar rods, the bottoms of the plurality of steel bar rods are fixedly connected with fixing plates, the outer sides of the plurality of steel bar rods are fixedly connected with steel bar rings, and the outer sides of the steel bar rods are provided with reinforcing mechanisms; the reinforcing mechanism comprises two reinforcing plates, the reinforcing plates are fixedly arranged on the outer side of the steel bar rod in a sleeving mode, and a reinforcing rib is fixedly connected between the two reinforcing plates. The reinforcing mechanism is arranged, so that the vertical bearing of the constructional column is more stable, the problems of settlement, cracking and the like caused by uneven local pressure of a foundation are effectively avoided, a foundation is built for the overall stability of a building, the fixed sleeve and the fixed nail are stably connected, the structural strength attenuation caused by loose connection is avoided, the durability of the building is improved, and the service life of the building is prolonged. The reinforcing plate can be flexibly and vertically adjusted during installation to adapt to complex conditions of different construction sites, and the construction efficiency and accuracy are improved.

The present invention provides a deformation joint structure and construction method of an integral underground pipe gallery, which belongs to the technical field of underground structure construction and is suitable for controlling the deformation of the side wall of an underground pipe gallery with problems such as structural cracks caused by structural settlement. It arranges seamless steel pipes on the side wall of the deformation joint, and steel bars are placed in the seamless steel pipes, so that the deformation joint becomes similar to a hinged node structure; two seamless steel pipes at corresponding positions are connected by a crossbeam, and all the crossbeams are connected by connecting steel pipes, so that the seamless steel pipes, the crossbeams and the connecting steel pipes are in a connected state to form a communicating vessel, and the communicating vessel is filled with butter, which can realize the expansion and contraction of the steel bars, thereby controlling the vertical deformation of the side wall of the pipe gallery, and controlling the vertical settlement of the pipe gallery within a certain range. When settlement occurs on one side of the wall, the butter in the connecting steel pipe is filled into the seamless steel pipe at the settlement position by providing power through an electric pump, so as to realize compensatory supply, thereby controlling the settlement.

The invention discloses an environment-friendly arch protection structure suitable for shallow-buried tunnel crossing and a construction method of the environment-friendly arch protection structure. The environment-friendly arch protection structure comprises a composite lining; the two ends of the reinforced concrete protection arch are expanded to form protection arch feet, the protection arch feet are anchored in bed rock through foot-locking small guide pipes, pre-stressed anchor cables are constructed to ensure safety, pipe shed guide orifice pipes are pre-buried in the reinforced concrete protection arch, an advanced large pipe shed is constructed in advance when the tunnel is excavated to a shallow buried section, and the large pipe shed is constructed in advance when the tunnel is excavated to the shallow buried section. Pre-stressed anchor cables are arranged through the reinforced concrete protection arches; backfilling geotextile material reinforced soil, arranging a small grouting guide pipe extending out of the side slope to prevent slippage, backfilling the geotextile material reinforced soil to the top of the reinforced concrete protection arch in a layered manner, and laying a bidirectional geogrid between layers; and the composite lining is constructed under the shield support of the advanced large pipe shed, and the protective arch construction seam of the reinforced concrete protective arch and the secondary lining construction seam of the composite lining are staggered. The problems of shallow buried section collapse, water and soil loss and waterproof failure can be solved, and the aims of zero collapse, low settlement and high waterproof performance are achieved through structural innovation.

This invention discloses a target design method for foundation soil reinforcement based on post-construction settlement control of shield tunnels, relating to the fields of tunnel engineering and geotechnical engineering. The method includes the following steps: considering the stress level decrease and structural damage of the surrounding strata during shield tunneling, and based on the quantitative evaluation method of soil disturbance during excavation and unloading, combined with the parameter values ​​obtained from the project overview and numerical simulation, the disturbance degree distribution of the tunnel foundation soil is obtained; based on the soil compression parameter weakening method of disturbance degree, combined with the tunnel foundation soil disturbance degree distribution and the initial soil compression parameters, the weakened soil compression parameters are obtained; the weakened soil compression parameters are substituted into the layered summation method, and it is set that the compression index and void ratio of the undisturbed soil and the remolded soil remain unchanged along the depth in the subsequent calculation process, to obtain the depth distribution of post-construction settlement of the tunnel considering shield tunneling disturbance, wherein the depth at the position where the post-construction settlement of the tunnel is 0 mm is the reinforcement depth.

The method comprises the steps that anchor rod static pressure piles are constructed on the large settlement side and the small settlement side correspondingly, and part of pile foundations reserved on the small settlement side are not sealed temporarily, so that the small settlement side does not participate in bearing in the initial stage; the larger side adopts a pile pressing sinking control device to control the towing belt to sink, and the smaller side passively tilts back by utilizing the towing belt to sink; digging soil from the lower part of the smaller side, monitoring the internal force response of the pile foundation in real time, dynamically adjusting the soil digging, and controlling stress release and load redistribution; settlement, inclination and pile foundation internal force are monitored in real time, a soil digging parameter and response correlation model is established, and a soil digging instruction is dynamically generated with the target that the overall inclination rate of the structure is controlled to be smaller than a preset value and the constraint that the internal force does not exceed the limit; an emergency device connected with the pile foundation is preset, when the threshold value is exceeded, load transfer is automatically triggered, and sudden sinking and pile body bending are restrained; and the piles are sealed and the soil digging holes are filled after rectification. The problems that the pile-soil action is complex, the sudden sinking risk is high and the control precision is difficult to guarantee in the rectification of the existing multi-story and high-rise building in the soft soil area are solved.

The invention discloses a buried pipeline anti-sinking and anti-seismic adjusting system and a construction method, and belongs to the technical field of civil engineering, the buried pipeline anti-sinking and anti-seismic adjusting system comprises a main body pipe, a flexible connecting pipe, a reset protection device, a position adjusting device, a pipe periphery filler and a liquefaction excitation device; the flexible connecting pipe is communicated with the two main body pipes and can adapt to displacement and deformation at the joint; the reset protection device forms a supporting structure for preventing the soil body from extruding the flexible connecting pipe on the outer side of the flexible connecting pipe; the position adjusting device comprises an adjusting rod used for changing the position of the body pipe, the lower end of the adjusting rod is connected with the body pipe, the upper end of the adjusting rod extends out of the ground, and the pipe periphery filler comprises sandy soil located on the outer side of the pipe and cohesive soil located on the outer side of the sandy soil. The liquefaction excitation device is buried in the pipe periphery filler and enables the sandy soil to be liquefied through vibration. The scheme of the patent application is low in construction cost, short in construction period and high in reliability. Pipeline engineering can adapt to the working condition of large sedimentation, and the structural performance of the pipeline can be effectively guaranteed. After settlement occurs in pipeline engineering, excavation-free repair can be achieved on the ground surface through operation, long-term shutdown of the pipeline is avoided, and the whole pipeline is restored to a reasonable space position.

The invention discloses a prefabricated lightweight aggregate concrete additionally-built elevator shaft and a foundation settlement control method thereof.The prefabricated lightweight aggregate concrete additionally-built elevator shaft comprises a foundation module, a standard knot module, a corridor module and a top layer module; the foundation settlement control method comprises the steps of collection of calculation parameters, calculation of wind-induced cyclic stress, calculation of foundation differential settlement and control of differential settlement. A standardized prefabricated module is adopted, integrated prefabrication of an enclosure wall system, a structural stress component and an outer vertical face decoration layer in a factory is achieved, and the advantages of building style and appearance coordination, light weight and high adaptability are achieved; the quantitative and verifiable wind-induced foundation differential settlement prediction and control method is provided, and effective control over the foundation differential settlement risk under the main wind direction load is achieved.

The utility model provides a supporting structure in a settlement post-cast strip and a structure of a structure bottom plate, the supporting structure in the settlement post-cast strip is arranged between a first structure bottom plate and a second structure bottom plate, and the supporting structure in the settlement post-cast strip comprises a first fixing part, a second fixing part, a third fixing part and a fourth fixing part, the second fixing part is horizontally and fixedly arranged on the second structure bottom plate; the supporting part is arranged between the first structure bottom plate and the second structure bottom plate and detachably connected with the first fixing part and the second fixing part, and the position relation between the supporting part and the second fixing part is adjustable. The supporting part is arranged between the main building and the structural bottom plate of the skirt room or the basement, the load in the horizontal direction is transmitted to the structural bottom plate of the basement, the position relation between the supporting part and the second fixing part arranged on the second structural bottom plate can be adjusted, and a settlement space is provided for differential settlement of the main building of the high-rise building and the skirt room or the basement.

The invention relates to the technical field of building installation, and discloses a fabricated composite foundation with correction and adjustment functions, which comprises a connecting mechanism connected with a house building, the bottom of the connecting mechanism is in threaded sleeve connection with an adjusting mechanism, the bottom of the adjusting mechanism is fixedly connected with a locking mechanism, and the bottom of the locking mechanism is connected with a soil-holding composite pile. The combined type design is adopted, damage and transformation operation in the existing building deviation rectifying process is reduced, the installation operation efficiency of a building body is improved, and the structural integrity is protected; adjusting operation of building body installation and the position of the building body are achieved, the building body is made to be suitable for uneven settlement adjustment under different basic conditions, the problem that adjustment operation of a traditional building body under the uneven settlement condition is troublesome and inconvenient is solved, and the installation application range of the building body is widened. The mode that the pile body and the soil jointly bear loads is adopted, and the overall bearing capacity is improved.

This invention belongs to the field of building construction and mainly relates to a method for replacing wall beams in the renovation of large-span precast brick-concrete buildings. The method includes: installing support beams on both sides of the load-bearing wall, tightly abutting them; using bolts to pass through and tighten the two support beams; installing a bottom sealing plate on the beams; installing a support system at predetermined distances on both sides of the load-bearing wall to be demolished; setting up a mold at the bottom of the support beams for concrete pouring to form a beam pad supporting the support beams between the beams and the ground; and pressurizing adhesive between the support beams and the precast roof slabs to form a new load-bearing beam; dismantling the load-bearing wall below the support beams in sections; leveling, filling, and polishing the new load-bearing beam to complete the overall renovation. This application targets old buildings with hollow slab and brick-concrete load-bearing structures, performing layered wall beam replacement. Through the through-and-through clamping of the two support beams, pressure pouring of structural adhesive, and reinforcement of the beam pads, the old and new structures are reliably combined, eliminating the risk of secondary wall cracking and uneven settlement.

The invention relates to the field of structural engineering, in particular to a system and method for monitoring the construction line shape of a continuous steel structure bridge. Comprising a foundation settlement detection module, a foundation settlement analysis module, a beam body linear detection module, a beam body linear analysis module, a concrete pouring amount analysis module, a temperature deformation detection module, a bridge structure analysis module, a bridge construction linear risk analysis module and a management database. The system analyzes the settlement problem of the bridge pier foundation according to the foundation settlement parameters of the bridge pier, analyzes the linear deformation condition of the bridge according to the linear influence parameters of the bridge body, and judges whether the concrete pouring amount needs to be adjusted or not; the bridge construction linear risk condition is analyzed by combining the foundation settlement evaluation coefficient of the bridge, the temperature deformation degree of the bridge body and the safety degree of the bridge structure, whether the bridge construction linear risk condition is qualified or not is judged, feedback is conducted to the system, and various factors influencing the bridge construction linear can be comprehensively considered.

The invention provides a foundation stress loss-based tunnel side-crossing frame structure building analysis method, which is an analysis means for solving the problem of potential damage to adjacent buildings when a shield tunnel laterally crosses existing buildings on the earth surface. By simplifying building damage analysis steps, optimizing a building damage identification method, determining a building damage standard and quantifying a building damage condition, the purposes of realizing safe construction of tunnel construction and ensuring the safety and usability of a surface building after disturbance are achieved. Comprising the following implementation steps: step 1), simplifying a building structure; step 2), building foundation settlement calculation; 3) calculating ground surface settlement; 4) solving the internal force of the building; (5) building resistance-stress comparison is carried out; a structural safety coefficient eta is adopted for rating, the rating is divided into four grades, and different grades correspond to different works.

The present invention relates to the technical field of engineering construction, and discloses a stone material for a water-dispersion and an installation method. The stone material includes an exterior wall, and a stone material body is fixedly connected to the right side of the exterior wall. A stone gap is formed in the upper surface of the stone material body. A caulking material is arranged between the stone material body and the exterior wall. A deformation joint is formed in the upper surface of the stone material body and is located behind the stone gap. An installation plate is arranged above the stone material body. The structure of the present invention is reliable and has high safety. It abandons the general water-dispersion design, sets a reinforced concrete cushion layer, and sets longitudinal and transverse deformation joints. The positions of the cushion layer and the block deformation joints are the same, ensuring that the structural deformation settlements in different sections are similar. The drainage performance of the blocks is strong, ensuring the safety of the structure. The water-dispersion can be adjusted according to the shape and position of the main structure to meet the needs of various construction sites. It has strong adaptability, the construction quality is easier to guarantee, the work efficiency is improved, and the construction progress is accelerated.

The invention relates to the technical field of foundation treatment and reinforcement, in particular to a bridge and culvert foundation treatment and reinforcement integrated technology which comprises the following steps that the geology is investigated in detail; determining structural parameters; construction materials are prepared; constructing a stirring pile; laying a composite cushion layer; installing a monitoring sensor; monitoring and evaluating the foundation; and maintaining and adjusting the foundation. According to the method, the treatment depth is large, the construction quality is easy to guarantee, compared with large-area gravel filler replacement and filling, the earthwork standard room-reinforced soil composite cushion layer technology has the advantages that the usage amount and the transportation cost of materials are reduced, the construction period is also greatly shortened, a large horizontal stable platform is not needed for a river silt foundation, and the construction site problem of a pile foundation method is solved; a large amount of sludge excavation amount is reduced, and the defects of a soil changing method are overcome; the intelligent system can grasp the state of the foundation in real time and adjust construction and reinforcement measures in time, it is ensured that the foundation can be kept stable under various complex conditions, and the problems of differential settlement, foundation instability and the like are avoided.

The utility model belongs to the technical field of engineering construction, and particularly relates to a structure for reducing differential settlement of an underground space by utilizing an enclosure structure, which comprises an underground space main body structure, a plurality of side walls and a bottom plate, underground space structure beams are arranged on the underground space main body structure top plate and the underground space main body structure bottom plate, and an underground space structure column is vertically arranged between the two underground space structure beams which correspond to each other up and down; the enclosure structure is tightly attached to the side wall of the underground space main body structure; a top beam is arranged at the top of the enclosure structure; the bracket foundation is fixed to the side, facing the underground space main body structure, of the enclosure structure and located under the side wall of the underground space main body structure and the bottom plate of the underground space main body structure. The utility model can solve the problem of structural differential settlement caused by large load difference of the bearing stratum of the foundation or the upper part and the like, and has better economic benefit and better market application prospect.

The building peripheral ground anti-settlement structure comprises a plurality of pile foundation bodies driven into a foundation around a building, a compacted gravel layer and a soil layer are backfilled among the multiple pile foundation bodies, vertical mounting holes are formed in the upper ends of the pile foundation bodies, threaded rods are rotatably mounted on the inner bottom walls of the vertical mounting holes, and the threaded rods are connected with the pile foundation bodies through bolts. A plurality of transverse mounting holes which are transversely formed and communicate with the vertical mounting holes are formed in the side wall of the pile foundation body, the multiple transverse mounting holes are located in one side of the threaded rod, a reinforcing rod is slidably mounted in each transverse mounting hole, and a driving mechanism used for driving the threaded rod to rotate is arranged on the pile foundation body; the threaded rods are provided with abutting assemblies located in the vertical mounting holes, and the abutting assemblies drive the reinforcing rods to be inserted into the soil layer from the openings of the transverse mounting holes one by one in the rotating process of the threaded rods. The structural strength of the peripheral ground of the building is guaranteed, and the probability of settlement caused by the fact that soil around the pile foundation body is frequently rolled by vehicles is reduced.

The utility model relates to the technical field of structural engineering and geotechnical engineering, and discloses a settlement post-cast strip structure in reverse construction method engineering, which comprises a reverse construction area structural beam, in-beam force transmission section steel is arranged in the center of the interior of the reverse construction area structural beam, and a settlement post-cast strip range structural beam is arranged at the middle end of the interior of the reverse construction area structural beam. The settlement post-cast strip range structural beam is arranged on the outer wall of the in-beam force transmission profile steel in a sleeving mode, and widening parts are arranged on the left side and the right side of the reverse construction area structural beam correspondingly. In the utility model, according to the stress characteristics of the structure at different construction stages, a settlement post-cast strip treatment method adaptive to the stress characteristics is respectively adopted, the widened area is additionally arranged on the side surface of the structural beam by not casting the beam in the post-cast strip range during the reverse construction period of the underground structure, and the post-cast strip in the structural slab area is temporarily closed; the horizontal force transmission problem of the basement reverse construction stage structure is solved.

The invention belongs to the technical field of building construction, and particularly relates to a settlement joint double-face decoration structure and a construction method thereof.The settlement joint double-face decoration structure comprises vertical keels arranged on the left side and the right side of a settlement joint and parallel to structural columns, and transverse keels parallel to structural beams and a bottom structural slab; the vertical keels close to the structural columns are connected with the structural columns through expansion bolts, transverse keels are fixed between the adjacent vertical keels at intervals, the transverse keels close to the structural beams and the structural plates are connected to the structural beams and the structural plates through expansion bolts respectively, a telescopic system is arranged in the middle of the settlement joint, and petal bolts are arranged in the middle of the telescopic system. The left side and the right side of the telescopic system are connected with vertical keels through transverse keels, the vertical keels and the front side and the rear side of the telescopic system are connected with decorative wallboards through clamping strip assemblies, and the space between the decorative wallboards and the transverse keels is filled with sound absorption rock wool. According to the invention, the double-sided decorative wallboard is mounted from one side of the building, so that the mounting firmness and the decorative effect are ensured.

The invention relates to the technical field of foundation engineering and structural engineering, in particular to a three-dimensional cultivation system and a construction method thereof. S2, defining a design layout, and designing a multi-layer structure; s3, infrastructure construction; s4, system construction and building; s5, arranging an environment regulation and control system; and S6, system joint debugging and acceptance. According to the three-dimensional cultivation system and the construction method thereof, in the step S3, the isolation layer can effectively reduce corrosion of corrosive elements in four types of environments of a building to the prestressed pipe piles, the damping layer can effectively reduce relative movement between the isolation layer and the prestressed pipe piles, and meanwhile, in the step S4 and the project putting-into-use stage, the damping layer can effectively reduce the relative movement between the isolation layer and the prestressed pipe piles. And the damping layer can further reduce the settlement process of the prestressed pipe pile.

This invention proposes an analysis method for tunnel-crossing frame structures based on foundation stress loss. This method addresses the potential damage to adjacent buildings caused by shield tunnels crossing existing surface structures. The aim is to simplify the damage analysis process, optimize damage assessment methods, clarify damage standards, and quantify damage levels, thereby achieving safe tunnel construction and ensuring the safety and usability of surface buildings after disturbance. The method includes the following steps: Step 1) Simplifying the building structure; Step 2) Calculating foundation settlement; Step 3) Calculating surface settlement; Step 4) Solving for internal forces in the building; Step 5) Comparing the building's resistance and stress. A structural safety factor η is used for rating, which is divided into four levels, each corresponding to different tasks.

The invention relates to the technical field of building structures, and discloses a structure for preventing large-area settlement of an industrial building composite terrace, which comprises a regional deformation buffer system, a composite terrace structure layer, a dynamic drainage pressure regulating system and a foundation collaborative supporting structure. Through the integration of innovative structural design, multifunctional material application and an intelligent monitoring control technology, a scientific, efficient and sustainable solution is provided for the settlement problem of the composite terrace of an industrial building. The structure not only can effectively relieve and prevent potential safety hazards caused by large-area settlement, but also has excellent self-repairing capacity and adaptability, the service life of the terrace is remarkably prolonged, and the maintenance cost is reduced. Meanwhile, by optimizing the drainage system and actively regulating and controlling the micro pile groups, the overall stability and deformation resistance of the foundation are enhanced, and the industrial building can still keep good structural performance and functional integrity in the severe environment.

The invention provides a supporting device for restraining foundation pit deformation and building settlement, and belongs to the technical field of foundation pit excavation, the supporting device comprises a plurality of first supporting assemblies, the first end of each first supporting assembly is arranged on a structural floor, the second end of each first supporting assembly is arranged on a supporting structure, and the first supporting assemblies are telescopic; the second supporting assemblies are connected with the two adjacent first supporting assemblies, and the second supporting assemblies are telescopic; according to each first supporting assembly, the first end of a first supporting rod is connected with one of a structural floor slab and a supporting structure; the first end of the second supporting rod is connected with the other one of the structural floor slab and the supporting structure, and the second end of the second supporting rod is in threaded connection with the second end of the first supporting rod; the braking part comprises a shell connected with one of the first supporting rod and the second supporting rod, and a containing space is formed in the shell; the jack is arranged in the containing space and is in threaded connection with the other one of the first supporting rod and the second supporting rod.

The utility model discloses a concrete building template anti-settlement structure which comprises a reinforcement cage, a foundation and a pile foundation, a soft soil layer is arranged on the lower side of the foundation, and a gravel layer is arranged on the lower side of the soft soil layer. A multi-angle supporting structure is formed through a steel bar protection frame, a steel bar supporting frame, a steel bar inclined side supporting frame, an inclined side supporting rod, a first connecting plate, a second connecting plate, a grouting pipe, a fixing plate, a fixing circular plate, a limiting piece, an inclined side supporting piece and a second limiting circular ring, and the stability and the bearing capacity of the whole protection structure can be effectively enhanced; loads transmitted from an upper structure can be evenly dispersed, lateral pressure of earthwork can be effectively resisted, stability of the whole structure is enhanced, the settlement risk is reduced, grouting is conducted through the grouting pipes, grout overflows from the grout outlet holes to further fix the outer side, grouting is conducted again, the steel bar structure and the earthwork are tightly combined, and integrity and stability of the structure are improved.

The application belongs to the technical field of municipal foundation maintenance, and particularly relates to an easy-to-maintain municipal foundation anti-settlement structure, which comprises a foundation pit, a plurality of vertical steel reinforcement cage nets arranged in the interior of the foundation pit, a pipe inserted into the interior of each vertical steel reinforcement cage net, an anti-settlement concrete layer poured between the foundation pit and the vertical steel reinforcement cage nets, a horizontal steel reinforcement cage net arranged in the interior of the foundation pit and at the upper end of the pipe, and a foundation main body arranged above the horizontal steel reinforcement cage net. Through the structural design of the anti-settlement structure, the inserted column is moved downward, the first support rod and the second support rod are unfolded from the interior of the inserted column to form a triangle, the vertical holding force is increased, and the settlement phenomenon caused by long-term embedding in soft soil is reduced. Through the structural design of the maintenance module, different positions can be selected for pouring according to the gap generated during foundation settlement, specified pouring is performed, the pouring construction process is ensured, and convenience is improved.

The invention relates to the technical field of settlement control, in particular to a deep foundation pit construction settlement control method and device, and the method comprises the following steps: obtaining stress and displacement data, calculating a difference value change rate, recognizing a stable section, generating a control instruction, and synchronously recording a construction state to complete settlement control management. According to the method, stress sensing and displacement monitoring results are quantified into transverse counter-force and vertical displacement rate indexes, dynamic judgment is carried out according to the change rate in a continuous period, a stress stable section and a settlement coordination section can be identified, and therefore structural areas meeting synchronous operation conditions are screened; and a control instruction is generated in a linkage mode and used for unlocking the formwork and starting pouring operation, automatic construction permission judgment and operation instruction issuing based on the stable state of the structure are achieved, a settlement control management closed loop is further formed through construction state recording and operation process marking, and the operation section recognition precision and the construction control response efficiency are improved.

The invention discloses a method for canceling a glass observation cover placed on a leveling layer of an underground engineering bottom plate, and relates to the technical field of underground engineering waterproofing. After being integrally cast and tamped, the underground engineering bottom plate is uneven. And a cement mortar leveling layer is firstly made. When the structure settles to generate cracks and leakage, the leveling layer can cover the actual situation of the structural cracks, the method is characterized in that the leveling layer is canceled on the surface of the bottom plate of the structure, the plastic drainage plate is directly laid, and then concrete is poured to form the hollow surface layer, so that the structural cracks can be exposed in the hollow layer, and the cracks can be conveniently positioned and maintained. Glass observation covers are dispersedly arranged on the hollow surface layer, an observation point is a double-layer sleeve, an inner sleeve can be taken out, and then a wire of a sight glass is put into the hollow layer, so that the specific position of a structural crack can be conveniently checked in a segmented manner. The inner sleeve can be taken out, and leaked accumulated water can be pumped out. According to the technical scheme, a layer-by-layer stacking construction method in the building industry is changed, a leveling layer is omitted, the surface of the structure is exposed on a hollow layer, then the water seepage condition of the structure crack can be known timely and conveniently through the glass observation cover, then the crack is positioned and found, and the technical scheme is a permanent non-seepage technical scheme for underground engineering.