818results about How to "Shorten the construction period" patented technology

The utility model provides an air bag device for construction of a cross-fault tunnel foam concrete buffer layer. The air bag device comprises an inflatable flexible air bag, a first annular closed steel formwork and a second annular closed steel formwork. The first annular closed steel formwork and the second annular closed steel formwork are arranged at the two ends of the inflatable flexible air bag. An inflation connector is arranged at one end of the inflatable flexible air bag, and a first filling pipeline and a second filling pipeline are arranged on the first annular closed steel formwork and the second annular closed steel formwork. The construction efficiency is remarkably improved on the premise of not losing the shock absorption and isolation performance of the foam concrete, one-time forming is achieved, the construction quality is guaranteed, and the cost is saved; in addition, due to the reusable characteristic of the air bag device, the construction cost is further reduced, and the problems that in a traditional construction method, efficiency is low, the seismic mitigation and isolation performance of the expanded excavation section foam concrete buffer layer is difficult to guarantee, and cost is high are solved.

The utility model relates to a prefabricated middle partition wall structure of a tunnel ventilation inclined shaft. The prefabricated middle partition wall structure at least comprises a bottom supporting structure, a steel supporting assembly and a prefabricated modular wallboard. A positioning groove is formed in the top face of the bottom supporting structure, and the bottom of the steel supporting assembly is embedded into the positioning groove and fixed. The prefabricated modular wallboard is formed by splicing a plurality of prefabricated slabs, the adjacent prefabricated slabs are connected through tongue-and-groove structures which are matched in a concave-convex mode, and the tongue-and-groove joints are filled with sealing materials. The steel supporting assemblies are longitudinally arranged at intervals, and the tops of the steel supporting assemblies are fixed to a tunnel lining to form a steel-concrete combined structure for supporting the prefabricated modular wallboard. The steel supporting assembly and the prefabricated modular wall plate form a steel-concrete prefabricated structure, and the stability of the whole structure is enhanced. By adopting the autoclaved aerated concrete precast block material and the concave-convex groove embedded modular structure, the problems that the construction quality is difficult to control, the construction period is long, the on-way resistance of air flow is large and the like in the existing reinforced concrete mid-partition wall are solved.

The utility model discloses a permanent and temporary combined assembly type underground structure plate wall connecting node which comprises an assembly type underground diaphragm wall, a full-length steel plate is installed on the side wall of the assembly type underground diaphragm wall, and a prefabricated structure plate is hoisted on the full-length steel plate. The gap between the prefabricated structural slab and the fabricated underground diaphragm wall is filled with ultra-high-performance concrete, and a steel bar structure is arranged in the ultra-high-performance concrete. According to the utility model, the rigid connection between the two prefabricated parts is realized, the integrity of the structure is improved, and the safety and durability of the underground structure are fully ensured; an underground diaphragm wall which is usually used as a temporary structure is changed into a permanent structure, so that the construction period is shortened, and the investment is saved; the ultra-high performance concrete poured in the joint can greatly shorten the anchoring length of the steel bars, enlarge the arrangement distance of the steel bars, obviously reduce the using amount of the steel bars on site and the binding workload, is convenient to install and simple in process, obviously improves the construction efficiency, and has high popularization and application value.

The utility model discloses a prefabricated diaphragm wall type assembled subway entrance and exit structure which comprises side wall structures, a prefabricated top plate and a prefabricated bottom plate are arranged between the side wall structures of the entrance and exit, the prefabricated top plate and the prefabricated bottom plate are both connected with the side wall structures through ultrahigh concrete, and the side wall structures are formed by integrating an enclosure structure and a main body structure. The side wall structure comprises prefabricated underground diaphragm walls, and underground diaphragm wall inter-amplitude connecting assemblies are arranged between the adjacent prefabricated underground diaphragm walls. The foundation pit support structure, the waterproof curtain and the side wall of the main body structure are integrated, so that working hours and manufacturing cost are saved. According to the utility model, the connection scheme of the waterstop strip bags, the C / T inter-width connectors and the UHPC concrete wet joints is adopted between the prefabricated underground diaphragm walls, so that the waterproof and guiding effects are achieved. According to the utility model, the longitudinal tensioning connection scheme of the inter-width concave-convex tenons, the elastic sealing gaskets and the prestressed steel bars is adopted between the prefabricated plate widths, so that not only can shearing force be effectively transmitted, but also a water stopping effect can be achieved.

The utility model discloses a kind of modularization wallboard systems, it is related to prefabricated wallboard technical field, including multiple specifications wallboard, ceiling beam component, support piece, first connecting piece, second connecting piece and third connecting piece;One end of the support piece is connected with the ceiling beam component, another end of the support piece is connected with ground or the wallboard;The wallboard is connected by first connecting piece between wallboard, the wallboard is connected by second connecting piece between the support piece, the wallboard is connected by third connecting piece with the ground;Multiple specifications wallboard, ceiling beam component and support piece form the enclosure structure of modularization splicing, reduce the dependence of traditional construction in site gradually masonry or multiple temporary process, facilitate on-site quick assembly, help to shorten construction period.

The application discloses a large-span steel structure and a metal roof integrated construction method thereof, and mainly comprises the following steps: (1) arranging assembling jigs and fulcrums at boundary positions on an assembling operation surface according to the construction partition, design boundary and assembling requirement of the large-span steel structure; (2) completing the assembling construction of the large-span steel structure on the assembling jigs; (3) reserving part of the assembling jig fulcrums near the original support boundary of the large-span steel structure and unloading the rest of the assembling jig fulcrums; (4) completing the metal roof system installation operation on the unloaded steel structure; (5) installing corresponding lifting or hoisting construction measures; (6) integrally lifting or hoisting and positioning; (7) fixing the large-span steel structure and the metal roof on a supporting structure; and (8) integrally unloading and completing the construction. The application solves the defects of the existing steel structure and metal roof integrated construction, can avoid the excessive deformation of the metal roof in the integrated construction process, is safe and controllable, and significantly improves the construction quality.

This utility model relates to the field of drainage inspection well technology, specifically a precast reinforced concrete drainage inspection well, comprising a precast inspection well body, which includes a base pipe, an extension pipe, and a jacking pipe. The top of the base pipe and the top of the extension pipe are provided with receiving components, and the bottom of the extension pipe and the bottom of the jacking pipe are provided with connecting components. The receiving component includes a bearing groove, within which a insertion groove and a limiting groove are formed. The connecting component includes an insertion block, with a filling hole at the bottom. The modular design of the base pipe, extension pipe, and jacking pipe allows for flexible combination of components according to the burial depth requirements of different projects, reducing the cost and cycle of customized production and improving the product's versatility. Through the precise cooperation of the receiving and connecting components, rapid connection of each component is achieved, eliminating the need for complex on-site construction processes, significantly shortening the construction period, and reducing labor costs.

The invention discloses a construction structure and a construction method of a secondary structure assembly type wall pier, the construction structure comprises an assembly type wall pier, a shear wall, a top plate, a bottom plate, a screw rod component and a clamping piece, the side edge of the assembly type wall pier is connected with the shear wall through the screw rod component, and the upper part of the assembly type wall pier is connected with the top plate through the clamping piece; and a triangular wooden wedge is arranged between the lower part of the fabricated wall pier and the bottom plate. The prefabricated wall pier has the beneficial effects that the prefabricated wall pier is adopted and prefabricated in advance, the reinforcing nut is pre-embedded in the main body structure in advance, the PVC sleeve is pre-embedded in the prefabricated wall pier, and during secondary structure construction, the PVC sleeve of the prefabricated wall pier is aligned with the pre-embedded nut of the main body structure and is connected with the pre-embedded nut of the main body structure through the harness cord screw; a gasket and a fastening nut are screwed and reinforced in a horn mouth on the outer side of the assembly type wall pier, a bedding mode is adopted for fixing a floor, and a U-shaped clamp and a shoot nail are adopted for reinforcing the bottom of a beam plate; the problems that the formwork is difficult to reinforce, time-consuming and labor-consuming during construction of the small door buttress are solved; site construction is convenient, and the construction period is shortened.

The utility model discloses a simple rubber waterstop connecting structure which comprises a connecting structure body used for being connected to the combination portion of a first waterstop plate and a second waterstop plate, and the connecting structure body comprises a supporting table arranged at the connecting end of the first waterstop plate in an extending mode; the lapping plate is arranged at the connecting end of the second water stop plate in an extending manner, is connected to the upper part of the supporting table and is used for connecting the first water stop plate and the second water stop plate into a whole; the connecting piece is connected to the connecting end of the first water stop plate and the connecting end of the second water stop plate and used for stably connecting the first water stop plate and the second water stop plate together. The rubber waterstop is simple in structure and novel and reasonable in design, the two adjacent rubber waterstops are tightly connected, the problems that after the rubber waterstops are installed, the joint portion possibly falls off, sealing is not tight and the like can be effectively prevented, meanwhile, the connecting pieces can ensure that the joint portion is tightly attached to the surrounding area, a good sealing effect is achieved, and the service life of the rubber waterstops is prolonged. And moisture permeation is effectively prevented.

The utility model relates to bridge engineering technical field especially a kind of deck structure of suspension chain plate arch bridge and pedestrian suspension chain plate arch bridge, including multiple bridge deck panels and multiple cables, multiple cables are mutually parallel between the, the both ends of cable are anchored on the mountain on both sides respectively, cable body is taut to exert pretension;Multiple bridge deck panels are fixed above cable along cable, multiple bridge deck panels are connected to form an integral whole, single bridge deck panel is fixedly connected with multiple cables simultaneously.Multiple bridge deck panels are erected on cable, to avoid the instability of suspension chain plate arch bridge caused by setting suspension structure;Cable body is taut and exerts pretension and multiple bridge deck panels are connected to form an integral whole, improve the overall rigidity of deck, further improve the ability of suspension chain plate arch bridge to resist lateral load, improve stability, effectively reduce safety risk.

This invention relates to the field of prefabricated structure technology for energy storage power stations, specifically to a prefabricated foundation structure for an energy storage power station equipment compartment, its design, and construction method. The foundation structure includes prefabricated corbel columns, prefabricated connecting beams, and connecting components. Multiple sets of prefabricated corbel columns are arranged in an array at intervals. Prefabricated connecting beams are provided between adjacent sets of prefabricated corbel columns, and these beams are connected to the prefabricated corbel columns via connecting components. The prefabricated foundation structure for an energy storage power station equipment compartment provided by this invention can significantly shorten the construction cycle and reduce construction costs. By standardizing the production of prefabricated components in a factory, on-site casting work is reduced, avoiding time-consuming processes such as traditional on-site casting formwork and curing, improving construction efficiency and quality stability, and reducing the difficulty of quality control. Furthermore, compared to traditional on-site cast-in-place foundations, this solution can reduce on-site material waste, avoid dust and noise pollution and construction waste accumulation, saving resources and being environmentally friendly.

The application discloses a method for controlling the verticality of a vibroflotation stone pile machine, which comprises the following steps: arranging a drill rod system in parallel with a mast of a hoisting system, so that a vibroflotation system connected with the bottom of the drill rod system is parallel with the mast; detecting the verticality of the mast relative to a main machine on a horizontal plane in real time when the vibroflotation system is used for vibroflotation construction, so as to obtain deviation data of the verticality of the mast; judging whether the verticality of the mast needs to be adjusted according to the real-time deviation data of the verticality of the mast; and adjusting the verticality of the mast if the verticality of the mast needs to be adjusted, so that the vibroflotation system can be used to vibroflotation downward to a construction stratum and form a vibroflotation stone pile hole with a required verticality. According to the method, the vibroflotation system can form a vibroflotation stone pile hole with a required verticality, the uniformity and compactness of a formed vibroflotation stone pile hole are ensured, the safety of the vibroflotation stone pile is improved, the construction period is effectively shortened, and the construction cost is reduced.

This invention relates to an integrated demolition and construction method for rebuilding a suspension bridge on the same site after demolishing an old rigid frame bridge. The method involves first demolishing the old bridge, then constructing the anchorages, main towers, and side spans of the new suspension bridge, installing the main cables and cable-mounted cranes, and using the cable-mounted cranes to dismantle the closure section of the middle span, the side spans, and the cantilever of the main beam of the middle span of the old bridge, and hoisting the steel box girder of the new suspension bridge. Simultaneously, crawler cranes are used to sequentially dismantle the closure section of the side spans, the cast-in-place section of the side spans, and the side piers of the old bridge. This invention allows for overlapping and simultaneous demolition and construction, which helps shorten the construction period. Utilizing the old bridge deck as a traction platform for the pilot cable of the new suspension bridge across the river does not affect navigation and saves costs. Using the cable-mounted cranes from the new suspension bridge construction for demolition ensures high construction efficiency and safety.

The application discloses a kind of asphalt pavement in situ regeneration disposal methods, mainly using the in situ regeneration stick with composite regenerant is placed in the asphalt pavement needing repair, and using heating method makes composite regenerant and waste asphalt react, to complete the in situ repair of asphalt pavement, reduce transportation cost, save energy, shorten construction period, and reduce the influence on environment;It is also disclosed that test piece preparation and test piece evaluation, sampling test is carried out to the in situ regenerated asphalt pavement, and the test piece sample and the reference sample are subjected to softening point test, PG grading test, ductility test and low-temperature bending beam rheological test, to accurately know the softening point, ductility, rut factor and creep rate of the test piece sample and the reference sample, and comparison is made, to obtain the quality and performance of regenerated asphalt, and then the diffusion of composite regenerant is calculated, to further know the regeneration effect of regenerated asphalt pavement.

This invention relates to a prefabricated 3D-printed box-type concrete retaining wall and retaining wall system. The prefabricated 3D-printed box-type concrete retaining wall is assembled from 3D-printed concrete retaining wall units. Each 3D-printed concrete retaining wall unit is an integrated 3D-printed concrete structure, consisting of an arched outer wall panel, a concave inner wall panel, and concave side wall panels, which enclose a cavity. A transverse keyway is formed between the concave side wall panels of adjacent 3D-printed concrete box-type retaining wall units. Shear keys are formed by casting cement-based material within the transverse keyway, enabling the combined load-bearing capacity of the 3D-printed concrete retaining wall units. Under the same loading conditions, the peak bearing capacity of the structure of this invention is significantly improved compared to traditional vertical box-type retaining walls, and the bearing performance is further enhanced under simulated backfill conditions, demonstrating good engineering applicability and green construction value.

The present application relates to the technical field of building construction, in particular to a bolt end plate connecting joint of a fabricated concrete beam column, comprising a sleeve plate one and a sleeve plate two, both of which are sleeved on a steel column, both sides of the steel column are provided with a concrete fabricated beam, the bottom surface of the sleeve plate one is fixed with two groups of traction plates, each group is provided with two traction plates, the two traction plates are inserted into two groove bodies at the end of the concrete fabricated beam, the surface of the traction plate is fixed with a connecting plate, and the surface of the connecting plate is provided with a assembling groove, the sleeve plate one and the sleeve plate two are sleeved on the steel column, the pre-limiting of the concrete fabricated beam is realized through the traction plate, the screw rod and the nut, the operation process is simple and easy to understand, the construction personnel do not need to have superb welding skills, only need to install the parts and tighten the bolts according to a certain order, the connection can be completed, the construction time is greatly shortened, and the construction efficiency is improved.

The utility model provides a kind of hot blast stove bellows internal refractory material pouring structure, including bellows, anchor, steel wire net, coating layer and pouring layer, wherein, one end of the anchor is connected with the inner wall of the bellows, the other end of the anchor extends to the axis direction of the bellows;Distance exists between the steel wire net and the inner wall of the bellows;It is the coating layer between the steel wire net and the inner wall of the bellows;The pouring layer is between the coating layer and the axis of the bellows.This hot blast stove bellows internal refractory material's pouring material uses high-strength high-temperature corundum pouring material to replace traditional special-shaped refractory brick, greatly shortens the construction period of replacing hot blast stove bellows under the premise of guaranteeing use function.Corundum pouring material is integrally poured to prepare hot blast stove bellows, reduces the gap on the traditional pipeline structure, improves production efficiency.

The utility model discloses an overwater cast-in-place simply supported beam dismantling device which is suitable for the field of bridge dismantling. Comprising a buoyancy tank platform for providing overwater operation support and transportation in the overwater cast-in-place simply supported beam dismantling process, an SPMT module transport vehicle capable of adjusting the height of a vehicle body, a bracket with the bottom capable of allowing the SPMT module transport vehicle to enter, and a hydraulic lifting device with the height capable of being increased to a preset height so that the to-be-dismantled cast-in-place simply supported beam can be separated from a support. Compared with an existing blasting device or a floating crane dismantling device, the device has the advantages that modular design and assembly are efficient, the device can be repeatedly used for other bridge engineering, the construction cost is low, the whole beam body is dismantled through hydraulic synchronous jacking, chippings are prevented from polluting water, and environmental protection and construction safety are both achieved.

The invention relates to a thermoplastic composition for a monolayer tube (T1, T2), and particularly to an air-conditioning circuit for a motor vehicle comprising tubes transporting a refrigerating fluid. The composition comprises in weight fractions: - more than 20% and up to 40% of an aliphatic polyamide comprising a PA 6.10 and / or PA 6.12, - from 45% to less than 60% of a polyphthalamide having a Tg higher than 120°C and selected from PA 6.I / 6.T, PA 9.T, PA 10.T, PA 10.T / X, and - from 10% to 20% of a compatibilizing system comprising a reaction product between (a) a polymer of olefin comprising an unsaturated epoxide and (b) a polymer of olefin comprising an unsaturated carboxylic acid, with weight ratio (a):(b) greater than 1.

This application provides a construction method for a deep-water cofferdam with limited clearance, comprising the following steps: dividing the steel cofferdam into several segments and transporting them one by one to the target location using a floating method; injecting water into each segment of the steel cofferdam and flipping it to a vertical position; moving each segment of the steel cofferdam to the designed position of the pier, connecting the segments to form a whole, and completing the enclosure of the cofferdam; continuing to inject water into the enclosed steel cofferdam to allow it to sink and anchor to the bed. This application eliminates the need for large lifting equipment, does not occupy the clearance under the bridge, effectively avoids the risk of collision with existing main beams, and significantly reduces on-site work, improving the safety, efficiency, and economy of cofferdam construction in deep-water environments with limited clearance. It is suitable for bridge foundation engineering in complex conditions such as deep water, limited clearance, and low bed depth.

This utility model discloses a perforated brick wall structure that eliminates the need for a main keel support and is related to the field of building wall construction technology. It includes a perforated brick wall with horizontally and vertically spaced concrete embedded blocks. U-shaped screws are embedded within each concrete embedded block, and horizontal angle steel secondary keels are connected to the U-shaped screws. The ends of the horizontal angle steel secondary keels are connected via vertical angle steel secondary keels, and L-shaped dry-hanging fasteners are connected to the horizontal angle steel secondary keels. This utility model, by embedding concrete embedded blocks in the perforated brick wall, not only enhances the overall stability of the wall but also allows for the embedding of U-shaped screws within the blocks and the construction of a new support system using horizontal and vertical angle steel secondary keels. This significantly reduces the need for a main keel, effectively reducing the burden on the wall and lowering construction difficulty and cost.

This invention discloses a pre-positioned steel support system suitable for small, ultra-deep foundation pits, comprising several lattice columns, several connecting devices, pre-positioned steel supports, several steel strands, several through-hole jacks, several servo cylinders, and a hydraulic system. The pre-positioned steel supports include a steel waler and several corner horizontal braces set at the four corners of the steel waler. Several servo cylinders are spaced along the circumference of the steel waler on its outer surface. The servo cylinders extend and retract under the action of the hydraulic system to achieve active deformation control of the diaphragm wall. Several through-hole jacks, under the action of the hydraulic system, simultaneously raise and lower the pre-positioned steel supports by synchronously extending and retracting the corresponding steel strands. This invention enables a construction method of pre-positioning concrete or steel supports for simultaneous excavation, lowering, and support, effectively shortening the construction period and reducing the time without support during over-excavation. It has advantages such as high mechanization, strong construction safety, and high turnover rate.

The utility model belongs to movable type support pier structure in the field of shipbuilding technology. The drive wheel (10) of first motor (9) of one side of support pier body (3) connects first track assembly (1), the drive wheel (10) of second motor (11) of the other side of support pier body (3) connects second track assembly (7), and the bottom of support pier body (1) is provided with lifting component (6), and the lifting rod (8) of bottom lifting component (6) is connected with the bottom of support pier body (3). The movable type support pier structure has simple structure, can satisfy reliable lifting support in the process of shipbuilding, can be automatically moved in short distance on site, saves manpower, saves time and is at ease, and improves shipbuilding efficiency.

The invention relates to the technical field of shield tunnel engineering, and discloses an intelligent energy management method and system for a shield tunneling machine, and the method comprises the steps: S1, sensor deployment and data collection: respectively installing sensors in a cutterhead driving system, a duct piece installation system, a propulsion system and a grouting system of the shield tunneling machine, the extraction module is used for extracting energy consumption and construction state parameters of each subsystem of the shield tunneling machine; s2, data preprocessing is carried out on the collected real-time tunnel face geological parameters and corresponding subsystem energy consumption parameters, and a'geological condition-equipment working condition-energy consumption 'multi-dimensional mapping model is constructed based on a machine learning algorithm and used for outputting theoretical optimal energy consumption intervals under different working conditions; and S3, based on the progress of the construction task and the energy consumption efficiency of each subsystem, combining the model constructed in the S2, and dynamically adjusting the energy distribution priority of each subsystem through a multi-objective optimization algorithm. According to the method, collaborative optimization of construction efficiency and energy consumption is facilitated, the total energy consumption of the shield tunneling machine can be reduced, and the energy-saving effect is more remarkable.

This utility model discloses a highly stable prefabricated concrete connection node structure, belonging to the field of prefabricated concrete frame structure construction technology. The connection node structure body includes a frame column, and a prefabricated frame beam is fixedly installed on the surface of the frame column. A steel cage is set inside the prefabricated frame beam, and a connecting component is fixedly connected to the surface of the steel cage. This highly stable prefabricated concrete connection node structure adopts normal setting of the upper steel bars of the prefabricated frame beam, and the lower steel bars of the beam are connected by connecting steel bars or beam shoe bolts. No steel bars extend beyond the beam end of the entire prefabricated beam, which solves the problem of steel bar collision between beams and columns in prefabricated frame structures. It is easy to construct, easy to control the quality, has good seismic performance and durability, enhances the safety and stability of the structure, reduces dependence on the construction environment, thereby shortening the construction period and reducing additional costs caused by uncontrollable factors such as weather.

The invention provides a construction method of a prefabricated assembled roadbed structure of a new and old expressway, which comprises the following steps: S1, carrying out stepped excavation on an old roadbed splicing area, and connecting a plurality of first splicing units with an old roadbed through a longitudinal insertion structure; s2, the first splicing units and the second splicing units are connected through first bolt connecting sets, and the second splicing units are connected through transverse inserting structures; s3, the adjacent first splicing units and the connected second splicing units are connected through second bolt connecting sets; s4, the first splicing unit and the second splicing unit are each connected with a leveling assembly used for adjusting the elevation and levelness of the first splicing unit and the second splicing unit; s5, sealing pieces are arranged between the first splicing units, between the first splicing units and the second splicing units and between the second splicing units; and S6, cast-in-place structures are arranged at the joints of all the splicing structures, the site cast-in-place workload is reduced, and rapid splicing of the new roadbed and the old roadbed is achieved.

The invention discloses a drilling blasting explosive energy transfer mode design and a data simulation method thereof, and relates to the technical field of blasting engineering.The drilling blasting explosive energy transfer mode design method comprises the steps that a rock sample is manufactured, mechanical parameters of the rock sample are tested, and the type of the rock is determined; respectively carrying out bursting tests on the multiple groups of rock samples; measuring, contrastively analyzing the average crushing particle size, the boulder rate and the total seismic wave energy of the central areas of the multiple groups of rock samples; establishing an explosive blasting energy transfer evaluation system, and determining an explosive column installation scheme; the data simulation method comprises the following steps: determining a blasting energy attenuation coefficient, an eccentric influence factor and an explosive energy transfer coefficient of a rock sample; establishing a blasting explosive energy transfer model and an explosive explosion energy density calculation formula; verifying and correcting an explosive explosion energy density calculation formula; the blasting effect can be predicted, the on-site trial blasting frequency is reduced, and the cost is reduced.

The application discloses a kind of fertilizer groove supporting retaining wall structure and fertilizer groove backfilling method using existing underground structure, comprising: two superimposed walls, including superimposed multiple unit wallboards, opposite sides of unit wallboard and the supporting structure of deep foundation pit, underground structure between deep foundation pit respectively form post-cast space, opposite sides of unit wallboard are respectively anchored in the outer wall of supporting structure and underground structure by planting reinforcement, bottom of unit wallboard is formed with pressure plate;Cast-in-place concrete is poured in post-cast space and coated in planting reinforcement;Tie assembly, including multiple cables and counterforce beams, unit wallboard forms multiple reserved holes, cable is arranged in reserved hole, counterforce beam is pressed to the outside of unit wallboard, one end of cable is connected to counterforce beam, the other end of cable extends to the inside of unit wallboard and is connected to supporting structure.The application solves the problem that process insertion needs to backfill fertilizer groove in advance, and the construction time of full backfilling of fertilizer groove is long, which affects construction period.

The invention discloses a site construction method for a perlite heat insulation layer of an LNG storage tank, and relates to the technical field of LNG storage tanks, and the site construction method comprises the following steps: step 1, increasing the number of perlite filling ports at the top of the tank, reducing a repose angle to 22 degrees when a connecting pipe is poured, and reducing gaps and uneven density; step 2, drying and replacing the perlite filler so as to reduce the moisture and oxygen content of the perlite filler; 3, the dried and replaced perlite filler is fed into perlite filling openings for filling, perlite is fed into a storage tank in a gas driving mode in the perlite filling process, in order to guarantee the online perlite filling effect and filling safety, the number of the filling openings is increased, the filling quality of expanded perlite is improved, and the production cost is reduced. The conditions of gaps and non-uniform density are reduced, so that the cold insulation effect is improved, the evaporation rate of the LNG storage tank is reduced, and the LNG in the storage tank is kept in an ideal storage state.

The utility model belongs to the technical field of building engineering, specifically discloses a heavy nonferrous metal smelting engineering existing pool anticorrosive and anti -infiltration structure. The reinforced concrete bottom plate and lateral wall of structure are closed into pool, the surface of reinforced concrete bottom plate is equipped with waterproof coating, geotextile I, high density polyethylene geomembrane, geotextile II, fine stone concrete layer, epoxy glass steel isolation layer and anticorrosive surface layer in proper order, the surface of reinforced concrete lateral wall is equipped with waterproof coating, geotextile I, high density polyethylene geomembrane, geotextile II, polymer cement mortar layer, epoxy glass steel isolation layer and anticorrosive surface layer in proper order, the layer of aforementioned same name of reinforced concrete bottom plate and lateral wall surface, geotextile and geomembrane correspond to head -tail link, and fine stone concrete layer and polymer cement mortar layer correspond to head -tail link. The utility model has the characteristics of simple structure, convenient construction, good anticorrosive and anti -infiltration performance and low cost.