64 results about "Diastrophism" patented technology

The invention relates to an underground (underwater) building waterproof device, and in particular to a vertical water-stop structure for a concrete engineering expansion joint as well as a manufacturing and construction methods for the same. The vertical water-stop structure comprises a deformation sheet and channel steel, and is characterized in that the deformation sheet is longitudinally arranged, one half is pre-buried in first-stage concrete, the other half is bulged out of a concrete section and externally arranged in a rectangular channel steel opening, and the channel steel is provided with a fixing element and filled with maltha; the surface of the channel steel opening and the section of the first-stage concrete are provided with asphalt felts at the both sides of the deformation sheet, the exposed fixing element is detached after asphalt is cooled, and then second-stage concrete is arranged. According to the vertical water-stop structure disclosed by the invention, the problem of water seepage of a water conservancy project due to the differential settlement or diastrophism of a stratum can be solved, and moreover, labour can be saved and construction period can be shortened.

This invention relates to the tunnel, it is concretely relate to a kind of waterproof method which is fit for the shield structure tunnel that large amount of stratum subside unevenly or a move alternatively, the shield structure tunnel of this method set up liner big deformation ring in the location around the fissure, using synthetic waterproof system which has multiple line of defence to satisfy the request that the seam doesn't leak under the working condition of the big deformation.

The invention discloses a hydraulic engineering vertical water stop structure and a manufacturing and construction method of the hydraulic engineering vertical water stop structure. The water stop structure comprises a red copper piece, a steel channel and a fixing device, wherein one side edge of the red copper piece is preburied in first-stage concrete, the other side edge of the red copper piece protrudes out of the fracture surface of the concrete and is arranged in an opening of the steel channel, and the red copper piece stretches into the steel channel by a certain depth; the portions, on the two sides of the red copper piece, of the opening face of the steel channel are provided with bituminous felt, and the portions, on the two sides of the red copper piece, of the fracture surface of the first-stage concrete are provided with bituminous felt; one end of the fixing device is preburied in the first-stage concrete, the other end of the fixing device is arranged on the two sides of the steel channel, the steel channel is fixed to the fracture surface of the first-stage concrete through band iron and nuts, after the steel channel is filled with maltha, the protruding part of the fixing device is cut, and then the steel channel is poured in second-stage concrete. The problem of water seepage caused by differential settlement or diastrophism of stratums in hydraulic engineering can be solved, manpower can be saved, and the construction period can be shortened.

The invention discloses a tunnel anti-seismic supporting system suitable for high seismic intensity area crossing faults, and relates to the field of tunnel supporting. The supporting system comprises a common supporting section, a grouting transition section and an anti-seismic supporting section, wherein the grouting transition section joints the common supporting section to the anti-seismic supporting section; the anti-seismic supporting section comprises a top arch anti-seismic structure and a bottom arch anti-seismic structure, wherein the top arch anti-seismic structure comprises a primary supporting anti-seismic layer, a secondary lining anti-seismic outer layer, a steel plate mould, a damping spring, a rubber cushion layer and a secondary lining anti-seismic inner layer; the primary supporting anti-seismic layer and the secondary lining anti-seismic outer layer are arranged on the inner side of a surrounding rock in sequence, the rubber cushion layer is embedded in the middle of the inner side of the secondary lining anti-seismic outer layer, and the steel plate mould and the damping spring are arranged at two ends between the secondary lining anti-seismic outer layer and the secondary lining anti-seismic inner layer. The supporting system eliminates the influence of diastrophism and displacement of relatively big crossing faults on the internal force of the supporting structure and further improves the anti-seismic property of a tunnel, and multiple unit bodies can be select and adopted to combine according to actual conditions.

The invention provides a finite element calculating method of shear deformation force of a well casing. According to the method, the calculation of the shear deformation force of the well casing caused by diastrophism of stratums is simulated based on finite element software. The method comprises 11 steps. The finite element calculating method of the shear deformation force of the well casing has the advantages that through the finite element calculating method of the shear deformation force of the well casing, the morphology of a pipe body of the casing when the casing is subject to the effect of stratum diastrophism force under a well can be accurately simulated, and the size of the biggest shear and diastrophism force the pipe body can bear can also be accurately simulated; through the finite element calculating, the cost of conducting shear tests on casing pipes of well drilling and well cementation can be sharply reduced. The result of the shear force calculated through the finite element calculating method is compared with an object test, and the error is within 5%. The calculated result obtained through the finite element calculating method has an important guiding significance in the design of pipe strings of the casing pipe.

The invention provides a method and device for reconstructing lithofacies paleogeography. The method includes the following steps that: the exploration data of strata are obtained, stratum denudation and lacuna recovery are performed on the strata according to the exploration data, the thickness of strata which have been subjected to exposure denudation transformation is recovered, wherein the exploration data at least contain outcrop data, drilling data and seismic data; spatial homing is performed on the distribution and thickness of each stratum according to a volumetric balance principle, so that true distribution features of each stratum in the depositional stage can be determined; spatial homing is performed on lithological characteristics and sedimentary facies in drilling and outcrops according to the true distribution features of each stratum in the depositional stage; a recovered lithofacies paleogeographic map is constructed according to a regional background based on the lithological characteristics and sedimentary facies after spatial homing; and based on a tectonic evolution process, the distribution rule features of ithofacies which have been subjected to a plurality of stages of diastrophism according to the recovered lithofacies paleogeographic map by using sedimentation process forward modeling.

The invention discloses a simulation test device and a simulation test method for mechanical behavior characteristics of a cross-fault tunnel roadway under different burial depths and different tectonic stresses. The simulation test device comprises a support frame, a loading hopper, a guide rail, a sliding block, a bidirectional power system and a confining pressure loading system. A confining pressure loading system for simulating overlying formation pressure and horizontal tectonic stress is provided for surrounding rock materials in a fixed hopper and a movable hopper. Meanwhile, a bidirectional power system, a guide rail and a sliding block are matched, so that the movable hopper can move in the horizontal direction and the longitudinal direction, complex engineering environment simulation of different burial depths, different tectonic stresses and fault composite diastrophism is achieved, and simulation of tunnel and roadway mechanical behavior characteristics in the environmentis achieved. According to the invention, the engineering actual situation can be restored more truly, the research accuracy of the mechanical behavior characteristics of the cross-fault tunnel roadwayunder the deep high ground stress condition is improved, and the problem that the existing physical model box cannot simulate the influence of the overlying stratum pressure and the tectonic stress on the tunnel roadway is solved.

The invention discloses a distribution-type optical fiber sensing system and a technical scheme, which are used to realize integrated on-line remote measurement of dam body-batholith internal deformation three components of a gravity dam, a dam body joint, and diastrophism, cracking, and extrusion of a bedrock tectonic belt, and is used to realize dam multidimensional-large scale spacetime full coverage. A plate-shaped beam of a novel optical fiber packaging structure---narrow rectangular section is provided, and the tension-compression sides of the plate-shaped beam are provided with microtubes to form an Euler elastic beam, and then the force-light direct conversion of the optical fiber is realized. An arrangement type of a sensing system in the gallery and the vertical shaft of the dam-bedrock, the comprehensive use of the sensing system, and an optical fiber laying technology are provided. The multifunctional integration of the optical fiber monitoring is achieved, construction is facilitated, the survival rate of the optical fiber is guaranteed, and application is convenient. An optical signal demodulation device adopts a high precision PPP-BOTDA or a hybrid Brillioun-Rayleigh system, and is multifunctional for being used for projects of monitoring a concrete temperature-reservoir water temperature, a slit position in front of a dam(factory), and a reservoir slit, and other optical fiber monitoring projects, and therefore upgrading and updating of a safety monitoring system are prompted.

The invention, which belongs to the technical field of geological prospecting, provides a method for quantitative description of strike-slip displacement of a fault in an extension environment. With the method provided by the invention, quantitative description of strike-slip displacement values of a fault at different geological historic periods can be realized. The method comprises the following steps: selecting a research area, calibrating a position based on geological data and carrying out position explanation, identifying a fault according to a seismic response characteristi8c of the fault, screening normal slip faults out, and carrying out normal slip fault explanation by using a plurality of fault points at different seismic sections; carrying out meshing processing on the data of a plurality of fault points corresponding to the same normal slip fault to obtain a three-dimensional curved surface and combining the three-dimensional curved surface of a plurality of normal slip faults to form a normal-slip-fault three-dimensional model; and scanning the stratum of the research area layer by layer to obtain horizontal slices, superposing the horizontal slices with the normal-slip-fault three-dimensional model to obtain a slice combination graph, selecting the normal slip faults with seismic diastrophism at the stratum at two sides of the fault in the slice combination graph, and using seismic diastrophism displacement values of the stratum at two sides of the fault for representing the strike-slip displacement value of the fault.

The invention relates to an active fault spanning aseismic structure and a construction method thereof. A damping ring is arranged in the surrounding rock of the lining structure at a fault fracture zone, the lining structure is located in the inner round of the damping ring, and a certain spacing distance exists between the lining structure and the damping ring; left, right and upper sides of thetunnel cross section at the fault fracture zone are expanded relative to the tunnel cross section of the stable section; the lining structure penetrating through the fault fracture zone is of a vertical segmental structure, and two adjacent lining segments are connected through a folded flexible joint in the deformation joint. The damping ring is adopted to weaken the earthquake action, and partsof seismic wave energy is absorbed to consume and reduce the earthquake energy; the whole lining structure is converted to the lining segment from, flexible chaining connection capable of bearing large deformability between the two adjacent lining segments is adopted, so that the staggered displacement is mainly absorbed by the flexible chaining connection, and the earthquake resistance and damping performance of the tunnel structure is improved. According to the structure, earthquake resistance and diastrophism resistance are combined, and the whole safety of a tunnel can be greatly improved.

The invention provides an anti-crack-type hinged tunnel used for crossing a movable fault zone and application thereof. The tunnel structure comprises a primary lining, section inner linings and annular flexible hinges between the adjacent section inner linings, and the annular flexible hinges are arranged at different intervals in a fault broken zone section and a fault broken zone affected section. Prestress steel bars are annularly arranged in the section inner linings of the tunnel, the annular flexible hinges are composed of corrugated steel pipes, rubber cushion layers, steel bar nets and flexible anti-crack concrete layers from the inner wall of a tunnel lining outwards. The corrugated steel pipes and the section inner linings are connected through the prestress steel bars. The tunnel waterproof effect is ensured through multi-layer waterproof measures, and PVC waterproof plates, geomembranes and back-attached-type water stop straps are included. An ultrahigh-toughness cement-based composite material is selected for the flexible anti-crack concrete layers and has good anti-permeability and durability. A diastrophism quantity generated by a movable fault is met, the safety ofthe tunnel crossing the movable fault is ensured, local damage to the annular flexible hinges is easy to rapidly repair, and the normal using function of the tunnel can be ensured after diastrophismof the movable fault.

The invention relates to a hydraulic tunnel structure spanning a large-scale active fault zone and belongs to the technical field of water conservancy and hydropower application. According to the technical scheme, the hydraulic tunnel structure comprises an active fault spanning section, a buried type steel penstock section with two connected ends and an overhaul tunnel communicated with the active fault spanning section in the longitudinal direction of a tunnel, a combined type lining structure is adopted in the active fault spanning section, the active fault spanning section is composed of an outer layer structure and an inner layer structure in the radial direction of the tunnel, the outer layer structure comprises a one-stage annular support and a one-stage annular lining on the outer side in the radial direction, the one-stage annular support and the one-stage annular lining are of reinforced concrete lining structures, and the inner layer structure comprises a combined lining structure with steel pipes and corrugate telescopic joints, wherein the steel pipes and the corrugate telescopic joints are connected in series alternatively. The hydraulic tunnel structure spanning the large-scale active fault zone is safe and convenient to construct, has the good seismic capacity and the capacity for resisting large-scale fault creep diastrophism damage and is high in safety.

The invention discloses an earthquake simulating demonstration device which comprises a ground sight demonstration platform (1). A demonstration platform surface (2) is arranged on the ground sight demonstration platform. A cabin swaying device (3), an earth surface falling device (4) and a fault diastrophism device (5) are arranged on the demonstration platform surface (2). A guardrail (6) is arranged on one side of the demonstration platform (1) and a controlling platform (7) capable of controlling the cabin swaying device (3), the earth surface falling device (4) and the fault diastrophism device (5) is arranged on the guardrail (6). According to the earthquake simulating demonstration device, influences of the earthquake damages by earthquake origin, earthquake magnitude can be intuitively displayed, thus people can understand the earthquake clearly.

The invention discloses an interlamination diastrophism measurement device based on a flexible touch screen. The interlamination diastrophism measurement device comprises a detection probe, the flexible touch screen, a data processor and a general-purpose computer. The flexible touch screen is arranged on the upper surface of a first detection piece, and the detection probe is arranged on the lower surface of a second detection piece and attached to the flexible touch screen. The output end of the flexible touch screen is connected with the input end of the data processor, and the output end of the data processor is connected with the general-purpose computer. By capturing the contact motion trails of the detection probe and the touch screen, the interlamination diastrophism measurement device can detect the diastrophism conditions between flat plates or between spherical shells under the condition of non-contact, and the interlamination diastrophism measurement device is simple in structure, easy to achieve and low in cost.

The invention provides a geotextile bag shock absorption and isolation building foundation and a construction method thereof. The foundation consists of a geotextile bag, geotextile bag pier foundation, a geotextile bag strip foundation, a geotextile bag raft foundation and a terrace, wherein geotextile bags are horizontally and longitudinally staggered and stacked layer by layer under the terrace in the sequence of the pier foundation under the column, the strip foundation under the wall and the raft foundation under the house of the building foundation; and clearances among the geotextile bags are filled up and tamped; and reinforced concrete or other material protective layer and the like is spread on the terrace. When an earthquake happens, earthquake waves are reflected and refracted between the insides of the geotextile bags and the geotextile bags; and the flexible deformation of the geotextile bags and the friction movement among soil particles inside the geotextile bags as well as the friction diastrophism among the geotextile bags consume the energy of the earthquake waves, and the earthquake waves are isolated due to the discontinuity among the geotextile bags. The method has the advantages of good shock absorption and vibration isolation effects, simple construction, economy, and remarkable economic and social benefits.

The invention relates to an earthwork standard room and fiber blanket combined side slope ecological protection method and an earthwork standard room and fiber blanket combined side slope ecological protection structure. By a specially-made earthwork standard room product, complementation of advantages of an earthwork standard room technology and a plant fiber blanket technology and innovation of a combined construction process are implemented; by a honeycomb skeleton formed by the earthwork standard room on a high and steep side slope, a firm foundation of a thick soil replacement layer is implemented; by a nest skeleton formed by a plant fiber blanket on a soil replacement surface layer, plant seed and topsoil loss protection is implemented; by a tip-shaped bulge structure of an outward face of the earthwork standard room, rigid contact with the fiber blanket is weakened, so that a gap between the fiber blanket and topsoil is partially eliminated; meanwhile, tip-shaped bulges are inserted through the fiber blanket, so that combination of the fiber blanket and the earthwork standard room can be implemented and downhill diastrophism slippage is prevented.

This invention relates to tunnel. Specific to say it relates to adapts to large quantity stratum non-homogeneous sedimentation or the disturbed open cut tunnel. This tunnel fracture surface's configuration size is bigger than the open cut tunnel standard fracture surface's configuration size. It has at least two rectangle structures which is wholly poured to form it, the joint among it lies on the ground split. The advantages are: the structure is simple, the quality is credible, it adapts to the bigger stratum sedimentation and disturbing.

The invention provides a low-angle dip stratified rock mass misfire-detonation-preventing blasting method. Due to geological forecast and drilling process recording, a rock stratum distribution figureof a blasting area is drawn; quincunx hole distribution is adopted, the bottoms of adjacent blast holes are drilled in different rock stratum faces, and meanwhile, a certain number of empty holes aredistributed in the blasting area; hole openings and the hole bottoms are each provided with an initiation point, a detonating cord penetrates through whole powder charge, the cartridge joint avoids the rock stratum interface, and it is guaranteed that upper and lower layer cartridges are in close contact and are on one straight line; and a quincunx or V-shaped initiation manner is adopted for performing initiation. According to the low-angle dip stratified rock mass misfire-detonation-preventing blasting method, by improving the charge structure and optimizing the initiation manner, the problem that in the blasting process of a low-angle dip stratified rock mass, due to the mutual diastrophism of the rock stratum, the misfire-detonation problem of explosives is caused can be solved, the boulder yield of hard rock stratum blasting is reduced, under excavation of a foundation surface is avoided, the safety of a blasting network is improved, and fast construction is facilitated.

The invention relates to an underground (underwater) building waterproof device, in particular to a method for application of a concrete work expansion joint vertical water sealing structure fixing element. The fixing element comprises a U-shaped embedded part formed by an embedded part body A and an embedded part body B, wherein the embedded part is provided with a connecting pipe, the connecting pipe is provided with internal threads so as to be in threaded connection with a connecting piece, flat iron is fixed to the connecting piece in an integrated mode with nuts to be used for fixing a vertical water sealing steel channel at the position of a concrete fracture surface, pitch is injected into the steel channel, and the connecting piece and the flat iron are disassembled after cooling and maintained, stored and reused. By the adoption of the method, the problem, appearing in a water conservancy project, of water seepage caused by differential settlement or diastrophism of a stratum can be solved, labor can be saved, construction time can be shortened, and resources can be saved.

The invention relates to a manufacturing and construction method of an air bag type concrete engineering deformation joint water stop type cavity die. The cavity die comprises a framework and an air bag and enables a red copper water stop piece embedded at the first-stage concrete fracture surface position to be clamped into a groove, air pressure is set in the air bag of the cavity die, second-stage concrete is cast in a layered mode, the air pressure in the air bag is released and the cavity die is hoisted out after the concrete initially sets, a semi-circular cavity is formed in the second-stage concrete fracture surface, and water stop effect can be achieved by injecting molten asphalt into the semi-circular cavity. The problem of deformation joint water seepage caused by uneven stratum settlement or diastrophism, of a water conservancy project, can be solved, and the cavity die can be repeatedly utilized.

This invention relates to tunnel. Specific to say it relates to a waterproof method that adapts to large quantity stratum non-homogeneous sedimentation or the disturbed open cut tunnel. This method sets the mid-burying stopping water band and the two-channel OMEGA stopping water band among the configuration distortion slot space. And it obligates grouting tube through the way of joint to make the effect of waterproof. The advantages are: the structure is simple, the quality is credible. It adopts the multiple defending lines as the synthesis waterproof system. When it has certain hydraulic pressure, it has the ability of adapting to larger distortion. This can make an effect of waterproof. It can combine grouting when need, this can attain the aim of sealing the whole big distorted hoop.

The invention relates to an underground gasification furnace which comprises a gasification passage (11) and at least one technological well, wherein the technological well is provided with a well-cementing sleeve, is positioned at one side of the gasification passage (11) and comprises a kick-off section (32); the kick-off section (32) extends towards the gasification passage (11); the bottom end of the kick-off section (32) forms a bottom end of the technological well. The underground gasification furnace is capable of effectively reducing the possibility that the well-cementing sleeve of the technological well is deformed or damaged by stratum diastrophism.

A connecting device for a U-shaped steel bracket belongs to the technical field of coal mine tunnel supporting. The connecting device comprises a top cover, a base and a W-shaped elastic strip fastener, wherein the top cover is corresponding to an outer lapping side arc-shaped beam, the base corresponds to an inner lapping side arc-shaped beam, the top end of the W-shaped elastic strip fastener corresponds to the base, the tail end of the W-shaped elastic strip fastener corresponds to the top cover, and the W-shaped elastic strip fastener is fixed on the top cover through a bolt. Two slopes are arranged on the base and are symmetrically arranged, and a limiting hole is formed in the tail end of each slope; the end parts of two supporting arms of the W-shaped elastic strip fastener are set to be of hook-shaped structures which correspond to the limiting holes. According to the invention, the traditional clamp cable connecting method is abandoned, the W-shaped elastic strip fastener is adopted as a limiting member and composure control is realized through the W-shaped elastic strip fastener, when compact ground pressure is encountered, the movement of two sets of connecting devices along with the respective arc-shaped beams fixedly connected with the two sets of connecting devices is realized in the mutual diastrophism process of the two adjacent arc-shaped beams, and the failure of connection at the connecting part of the two adjacent arc-shaped beams is avoided, so that the stability of connection is guaranteed.

The invention relates to a construction method for an air bag type concrete project deformation joint water stop cavity mold. The cavity mold comprises a skeleton and an air bag, a red copper water stop piece pre-embedded in the section of first-stage concrete is clamped in a groove by the cavity mold, air pressure is set in the air bag of the cavity mold, second-stage concrete is poured in layers, after initial setting of the concrete, air pressure in the air bag is released, the cavity mold is hung out, a semicircular cavity can be formed in the section of the second-stage concrete, and molten pitch is injected into the semicircular cavity to achieve the water stop function. The problem that deformation joint water leakage, caused by differential settlement or diastrophism of a stratum, of a water conservancy project can be solved, and the cavity mold can be used repeatedly.

The invention relates to an underground (underwater) building waterproof device and particularly relates to a concrete engineering expansion joint vertical sealing up structure fixing member and an application thereof. The concrete engineering expansion joint vertical sealing up structure fixing member comprises a U-shaped embedded part formed by an embedded part A and an embedded part B, wherein the embedded part is provided with a connection pipe, the connection pipe is provided with an inner thread and is in threaded connection with a connection member, slab iron is fixed to the connection member through a nut into a whole so as to fix a vertical sealing up steel channel at the position of a concrete fracture surface, asphalt is poured into the steel channel, and the connection member and the slab iron are disassembled after cooling and maintained and collected for recycle. By means of the concrete engineering expansion joint vertical sealing up structure fixing member, the problem of water seepage caused by differential settlement or diastrophism of strata in water conservancy projects can be solved, manual work can be saved, construction periods are shortened, and resources are saved.

The invention discloses a novel method for searching a large-range unstable fracture diastrophism surface of a stope in a complex environment. The method comprises: taking the maximum shear strain increment in numerical analysis as a criterion (combining a stress-displacement result), and searching the position of a series of maximum shear strain increment maximum value coordinates arranged in thesection in the vertical line direction before numerical calculation by compiling an FISH language program; obtaining discrete points of a fracture dislocation surface, performing linear fitting on coordinates of each discrete point by using an improved least square method to obtain a two-dimensional form and a position of the fracture dislocation surface, finally outputting and storing each coordinate of the form and the position of the fracture dislocation surface as a .TXT text format, and automatically obtaining a three-dimensional fracture dislocation surface form by using Sigmaplot drawing software. According to the method, the result obtained through the numerical analysis method is directly searched through programming, the convergence speed or premature problem is not involved, the obtained result is high in precision, the final fracture dislocation surface is in a three-dimensional form, and a theoretical basis can be provided for later stope grouting reinforcement and stopemining.

The invention discloses a secondary lining for preventing stick slip diastrophism of an active fault spanning tunnel and a construction method of the secondary lining. The secondary lining is of a main structure that the part outside a support vertical rack (7) in a reinforced concrete layer is taken as an opening layer (1); the part inside the support vertical rack (7) is taken as an inner layer (3); the thickness ratio of an inner layer (3) to the opening layer (1) is (1-1.8):1; longitudinal hollow tubes (2) are inserted into the opening layer (1); the ratio of the diameters of the hollow tubes (2) to the thickness of the opening layer (1) is (0.5-0.7):1; the hollow tubes (2) are arranged in the annular direction of the opening layer (1) at equal intervals; a radial grouting tube (4) is pre-buried between the inner wall of the inner layer (3) and the hollow tubes (2). By adopting the secondary lining, fault stick slip diastrophism can be prevented, the damage caused by fault diastrophism to a tunnel can be reduced, the seismic capacity of the tunnel can be effectively increased, and damage caused by fault stick slip diastrophism can be prevented; moreover, the secondary lining can be rapidly repaired after being damaged, the tunnel can be rapidly repaired, and the repairing cost is low.

The invention discloses a landfill anti-leakage layer with an intelligence-driven self-repairing function and a self-repairing anti-leakage method thereof. The landfill anti-leakage layer includes multiple self-repairing rods and an anti-leakage base layer; the self-repairing rods are distributed in the anti-leakage base layer; each self-repairing rod includes multiple intelligent driving switches, a first hollow rod and a second hollow rod, each second hollow rod is positioned in the corresponding first hollow rod and is coaxial with the corresponding first hollow rod, the spacing between each first hollow rod and the corresponding second hollow rod is filled with a repairing solution, each second hollow rod is filled with liquid stimulating solidification of the repairing solution, and the intelligent driving switches are positioned on the side walls of the first hollow rods. The landfill anti-leakage layer and the self-repairing anti-leakage method can prevent leakage, caused by small cracks, of leachate of a new landfill and also can block up large cracks generated by diastrophism of the anti-leakage layer due to large deformation after an earthquake, and therefore pollution ofthe leachate is prevented.

The invention relates to a waterproof device for underground (underwater) buildings, in particular to a construction method of a vertical waterstop structure for expansion joints in concrete engineering. The vertical waterstop structure comprises a transformable plate and a steel channel and is characterized in that the transformable plate is arranged longitudinally, one half of the transformable plate is pre-buried in primary concrete while the other half of the transformable plate protrudes out of a concrete section to be arranged in an opening of the rectangular steel channel, and the steel channel is provided with fixing parts and internally filled with maltha; an open face of the steel channel and the primary concrete section are provided with asphaltic felts on two sides of the transformable plate, the exposed fixing parts are demounted after cooling of the maltha, and then secondary concrete is poured. By the construction method of the vertical waterstop structure for the expansion joints in concrete engineering, the problem of water seepage caused by differential settlement or diastrophism of stratums in hydraulic engineering can be solved, and labor cost can be saved while construction period can be shortened.

The invention relates to an underground (underwater) building waterproof device, in particular to a manufacturing method for a concrete expansion joint dual waterstop structure. The structure comprises transformation sheets and steel channels. The manufacturing method is characterized in that a concrete fracture surface is provided with the two transformation sheets, the two transformation sheets are longitudinally arranged in a set spaced mode, one half of each transformation sheet is buried in primary concrete, the other half of each transformation sheet is protruded out of the concrete fracture surface and arranged in the corresponding steel channel, pitch is arranged in the steel channels, the opening faces of the steel channels and the primary concrete fracture surfaces are provided with asphaltic felts, exposed fixing parts are removed after the pitch is cooled, and then secondary concrete is arranged. The water seepage problem caused by uneven settlement or diastrophism of the stratum of a water conservancy project can be solved, labor can be saved, and the construction period can be shortened.