78results about How to "Does not affect normal construction" patented technology

The invention relates to an in-hole jet-suction cuttings removing and reaming method for horizontal directional drilling. The in-hole jet-suction cuttings removing and reaming method includes that after completing drilling of a guide hole, a jet-suction type reamer is connected onto a drill pipe on an unearthed side, a drill pipe or pipeline is connected onto the rear of the reamer, a slurry pump or an air compressor is started up during reaming, and high-pressure fluid is delivered from the a high-pressure rubber hose, a drilling machine and the drill to the inner side of the reamer; the high-pressure fluid is jetted out from a jet flow nozzle at a high speed, negative pressure is generated in a suction chamber, and slurry fluid containing drilling cuttings on the periphery of the reamer is sucked into the suction chamber through suction inlets and blended with the high-pressure fluid jetted out from the nozzle in a throat and expansion section prior to being discharged into an earth surface sedimentation tank through the drilling pipe or the pipeline at the rear of the reamer and flowing back to a drilling hole after purification and blending; the reamer comes out from an earth-digging side to complete primary reaming, and if the drilled hole needs to be further enlarged, then a larger reamer is selected to perform repeated reaming till the hole diameter acquirement is met. By the method, drilling cuttings conveyance speed is dozens of times even a hundred times that of a conventional mode, so that cuttings can be removed thoroughly, and cuttings removal efficiency is high.

The invention relates to a portable resistivity method advanced forecasting system applicable to a TBM. The system comprises a plurality of non-polarized electrodes, a terminal control box and an electrode cable series. The non-polarized electrodes are electrically connected with the terminal control box. The terminal control box is electrically connected with the electrode cable series. The non-polarized electrodes are arranged to be capable of stretching out of a TBM cutterhead hob hole and making contact with a tunnel face to detect front geological signals. The terminal control box receives the signals collected by the non-polarized electrodes and predicts a front geologic body. The potential difference between a surrounding rock mass, a shield and the terminal control box is reduced and/or eliminated through electrode cables. According to the system, detection of unfavorable geologic bodies such as a fault fracture zone, a soft and hard layered stratum, a water-bearing cave and an underground river is achieved according to geologic body resistivity difference.

The invention discloses a foundation pit top horizontal displacement monitoring method which comprises a longitudinal foundation pit edge monitoring point monitoring link and a transverse foundation pit edge monitoring point monitoring link. The longitudinal foundation pit edge monitoring point monitoring link includes the following steps that 1, firstly a foundation pit corner portion point B1 is selected to serve as a static benchmark point, monitoring points are set on two longitudinal edges of a foundation pit respectively, the monitoring points before excavation are Bi and C i+1 (i=1, 2,......n) respectively, the corresponding monitoring points after excavation become B' i and C' i+1 respectively; 2, before excavation is conducted on the foundation pit, the distance between B i and B i+1 is monitored to be B i * B i+1, and the distance between the B i+1 and the C i+1 is monitored to be B i+1* C i+1; 3, after excavation is conducted on the foundation pit, the distance between the B' i and the C' i+1 is monitored to be B' i *C' i+1, and the distance between the B' i+1 and C' i+1 is monitored to be B' i+1 * C' i+1; 4, the horizontal displacement of the monitoring point Bi and the horizontal displacement of the monitoring point C i are obtained according to the value of the B i * B i+1, the B i+1* C i+1, the B' i *C' i+1 and the B' i+1 * C' i+1. The horizontal displacement monitoring method is high in measuring accuracy and low in requirement for professional skills of monitoring personnel, and monitoring can be finished conveniently just by operation of a single person.

The invention discloses an excavation and support method of large cross-section tunnel through fault fracture zone. The initial support structure of tunnel comprises a whole cross-section support system and the lattice girder and shotcrete support structure of the tunnel. A temporary support structure of middle-partition wall is arranged between a left pilot tunnel and a right pilot tunnel. The actual construction includes the steps: 1, excavation of the upper tunnel body; 2, the judgment of the initial support deformation of the tunnel arch wall and the construction of the replacement arch; 3, excavation of the lower tunnel body. The excavation and support method of large cross-section tunnel through the fault fracture zone has reasonable design, simple construction, and good use effect.Only the upper half section of the tunnel is excavated by the center diaphragm method, and the excavation cross-section is reduced so that the stability of the arch roof is ensured. The whole cross-section support system and the temporary support structure of middle-partition wall are supported by the underpass beam and joined together to form a stable monolithic support system, which can avoid the sinking of the supporting arch and ensure the stability of the initial support effectively. Besides, the construction of replacement arch is conducted on only half cross-section of the tunnel and the cost can be saved, and the construction safety can be ensured.

The invention discloses a tunnel rock soil deformation monitoring method, and particularly discloses a novel tunnel non-contact deformation monitoring method. A thickness R0 value of a plastic area is calculated. A sensor installing hole is drilled in a surrounding rock. One anchoring end is arranged at the tail end of an optical fiber single point displacement sensor. The anchoring end penetrates from the installing hole through the plastic area to be buried in an elastic area and fixed. The optical fiber single point displacement sensor is arranged in the plastic area. The top end, i.e. a flexible point, of a telescoping probe of the sensor is fixed on a tunnel excavation interface and used for measuring data. Deformation of the plastic area is calculated according to the value measured by the optical fiber single point displacement sensor. The monitoring data are transmitted to a tunnel port via optical fibers. During the process, consumption of manpower resource is low, the monitoring data are not manually influenced, loss and damage of the data in cable transmission can be effectively avoided, and an objective of automatic real-time monitoring can be realized via arrangement of the sensor device.

The invention discloses a plane sensor used for detecting strain between asphalt road surfaces, comprising an elastic element, a sensitive element, a hemispheric protective sleeve, a waterproof adhesive layer and a fixing element, wherein the elastic element is made of a material with similar elastic modulus and asphalt concrete modulus and is subjected to harmonious deformation together with an asphalt mixture; the sensitive element is installed in the middle of the elastic element and can detect the dynamic strain between the asphalt road surfaces; the waterproof adhesive layer is compactly filled in the hemispheric protective sleeve; the fixing element guarantees the harmonious deformation of the elastic element and the detected road surface asphalt mixture and prevents the direction of the elastic element from changing during the detection process; and the sensitive element is a strain rosette composed of three strain gages for detecting the dynamic strains of vehicle driving direction, direction vertical to the vehicle driving direction, and direction having an included angle of 45 degrees respectively with the two directions in real time. The plane sensor has the advantages of simple structure, small volume, low cost, high temperature resistance and high detection sensitivity, and can be used for solving the practical problem that the complex strained condition of strain between asphalt road surfaces can not be accurately and reliably detected in the prior art.

The invention belongs to a simple automatic water-saving spraying and dedusting system of a temporarily constructed road. The system is composed of a ground art and an underground part. The ground part is composed of water pumps, a dust inductor, supporting columns, a spraying water pipe and fixing bases. The hollow supporting columns are located on one side or two sides of the temporarily constructed road at intervals through the fixing bases. The upper ends of the supporting columns are fixedly provided with water pipe support grooves, and the upper ends of the water pipe support grooves support the transverse spraying water pipe. The side, towards the temporarily constructed road, of the spraying water pipe is provided with buckle type spherical spray nozzles at intervals. Water inlets of the water pumps are communicated with a water storage pond, and water outlets of the water pumps are communicated with the two ends and the middle of the spraying water pipe respectively. The dust inductor control operation of the water pumps through a controller. The underground part comprises a basement dewatering well, a drainage ditch, the water storage pond and a settlement pond. The constructed road can be effectively dedusted through the method, pollution-free construction is guaranteed, and the system has the advantages of being simple and practical in structure, capable of saving water sources, low in pollution control cost, capable of recycling sewage in site and good in use effect.

The invention discloses a tunnel arch wall primary support limit-intruding arch-replacing construction method based on gantry-type supporting, which comprises the steps of: 1, temporary inverted archconstruction, i.e., constructing a temporary inverted arc construction in a to-be-arch-replaced section in a constructed tunnel, which needs to be subjected to arch replacement; 2, gantry-type supporting structure erection, i.e., erecting a plurality of gantry-type supporting structure for carrying out supporting on an arching which needs to be replaced on the temporary inverted arc; 3, arch replacement construction, i.e., beginning with an initial arch replacing end, removing a tunnel primary support structure in the to-be-arch-replaced section, synchronously carrying out primary support construction on the to-be-arch-replaced section in the removing process, and obtaining a tunnel primary support structure after replacement. The method disclosed by the invention is simple in step, reasonable in design, simple and convenient to construct and good in using effect, is based on the temporary inverted arc, adopts the gantry-type supporting structure, is high in structural integrity and firm in foundation, can effectively solve problems of inclination, collapse and the like of a tunnel arch-replaced steel frame, is safe and reliable in arc-replacing construction process and does not influence the tunnel construction progress.

The invention discloses a ventilation heating system for tunnels in high-altitude and cold regions as well as a ventilation heating construction method. The ventilation heating system comprises an axial-flow ventilator, an air pipe and a ventilation heating pipe for heating cold air introduced into a tunnel, wherein the ventilation heating pipe is mounted on the air pipe and comprises a round heating pipe, an air outlet and an air inlet; the round heating pipe comprises an outer steel pipe, an inner steel pipe and a ventilation heating device mounted in the inner steel pipe. The ventilation heating construction method comprises the following steps: 1, mounting the axial-flow ventilator; 2, excavating the tunnel and performing ventilation heating construction; adopting the axial-flow ventilator for press-in ventilation and adopting the ventilation heating pipe to heat the cold air introduced by the axial-flow ventilator in a tunnel excavating construction process. The ventilation heating system and the ventilation heating construction method have the advantages as follows: the design is reasonable, the construction is convenient, the use effect is good, and the problems of influence caused by proneness to collision on tunnel construction, poorer heating effect, failure in meeting the heating requirement in a low-temperature environment and the like when the existing tunnel environment heating method is adopted can be solved.

The invention discloses a remote monitoring system for a shield machine. The system comprises a tunnel communication system (6) and a ground communication system (8) which are connected through a telephone line or an optical fiber (7), wherein the tunnel communication system (6) comprises a programmable logic controller (PLC) (1); the PLC (1) is connected with a network switch (3) through a network line (2); the network switch (3) is connected with a protocol converter (5) through a network line (4); and the ground communication system (8) comprises a ground monitoring system (11) and a protocol converter (9) which are connected through a network line (10). Through the remote monitoring system for the shield machine provided by the invention, technicians, managers and the like in a local area network and the Internet can know the working conditions and analyze historical data of the shield machine in real time and make correct judgment timely; and a plurality of computers for monitoring and analytic application run simultaneously.

The invention discloses a secondary lining trolley structure in a standard section of a tunnel and a splicing method. The secondary lining trolley structure comprises a lining trolley which comprisesa plurality of portal frames, two lower longitudinal beams and a walking device arranged below the lower longitudinal beams; a track device is arranged below the walking device; a template device is arranged out of the lining trolley; a plurality of hanging devices and embedded parts are arranged on the outer side of the template device. The invention also provides a splicing method of the secondary lining trolley structure. Primary mounting work of the secondary lining trolley is performed by means of chain blocks. According to the secondary lining trolley structure disclosed by the invention, the plurality of hanging devices for assembling the secondary lining trolley and a plurality of embedded parts for fixing the hanging devices are arranged on the outer side of the template device, the chain blocks are hanged on the hanging devices, and the primary mounting work of the secondary lining trolley is performed by means of the chain blocks, so that use of large mechanical equipment isreduced to a great extent, the secondary lining trolley structure is simple to operate, the steps and workload are reduced, and normal construction of a tunnel is not affected, and the work efficiency is increased.

The invention provides a reinforced structure used for concrete displacement of a shear wall and a construction method of the reinforced structure. The reinforced structure includes a newly poured concrete wall surface and a number of permanent steel stand columns, wherein the permanent steel stand columns are arranged in the newly poured concrete wall surface side by side at intervals; the two sides, parallel to the wall surface, of each permanent steel stand column are provided with reinforcing steel bar nets, and each permanent steel stand column includes a center steel column, a connection steel plate located at the upper end of the center steel column, a nut located at the upper end of the connection steel plate, and a screw rod; the top ends of the screw rods on the upper portions of the permanent steel stand columns are welded with upper steel plates, the bottom portions of the steel columns are welded with lower steel plates, the upper steel plates are fixed with upper floor slabs, and the lower steel plates are fixed with ground floor slabs; a horizontal support is arranged between every two adjacent steel columns so as to increase the stabilization of the permanent steel stand columns and prevent the lateral deformation of the steel stand columns. According to the reinforced structure and the construction method of the reinforced structure, the mode in which concrete is dismantled in sections and the permanent steel stand columns are built in the concrete is adopted, the normal construction of the upper structure is not affected, that is, the shear wall displacement and the upper structure construction are conducted at the same time, the progress of the whole project is ensured, and the whole construction period is not affected.

The invention discloses a temporary shoring system of tunnel arch wall initial shoring intruding limiting arch replacing construction. The system comprises a temporary inverted arch arranged in a to-be-changed arch section and multiple portal type supporting structures which are arranged from front to back, and the temporary inverted arch is located at the inner side bottom of a tunnel upper portion hole; in the to-be-changed arch section, to-be-changed arch frames are to-be-supported arch frames except an initial replacing arch frame, each to-be-supported arch frame is supported through one portal type supporting structure, the temporary inverted arch comprises multiple temporary inverted arch supporting frames and longitudinal connecting structures, and each portal type supporting structure comprises a portal type supporting frame and a supporting assembly which is arranged on the same tunnel cross section with the portal type supporting frame. The system has the advantages of reasonable design, convenient construction and good using effect, the temporary inverted arch is taken as the basis and the portal type supporting structures are adopted, the structural comprehensiveness ishigh, the foundation is firm, the problems of tilting and collapsing of tunnel arch replacing steel frames can be effectively solved, the arch replacing construction process is safe and reliable, andthe tunnel construction process is not influenced.

The invention discloses a method of constructing a center division of an upper bench of a tunnel crossing a stratum fracture zone. Upper bench excavation is performed on a construction tunnel from rear to front so as to obtain an excavated tunnel upper hole; a center division temporary support structure is arranged in the tunnel upper hole; a tunnel primary support structure of the tunnel upper hole includes an arch wall anchor net spray support structure and an arch wall rigid support system. The upper bench excavation includes I, excavating a left guide hole, and carrying out primary supporting; II, excavating a right guide hole and carrying out primary supporting. The method has simple steps, reasonable design, good construction simplicity and good service effect; a tunnel upper half section is excavated by means of a center division method, excavation section is narrowed, and stability of an arch top is guaranteed; both the arch wall rigid support system and the center division temporary support structure are supported via a lower bearing beam and are connected into an integrated stable-structure support system; settling of a primary support arch frame in the upper hole can beavoided, and stability of primary supporting can be effectively guaranteed.

The invention discloses a mounting method for a bridge closure segment wavy steel web. A circular hole is formed in the fixing end of the wavy steel web, a circular hole of the free end of the wavy steel web is subjected to transverse broaching to form a long-strip-shaped open hole, and finally the wavy steel web is mounted. Firstly, the mounting angle of a bridge closure segment is well adjusted,then welding is conducted after a nut corresponding to a bolt of the fixing end is tightened up in a constant temperature field, and then welding is conducted after a nut corresponding to a bolt of the free end is tightened up in a closure environment. The form of circular hole forming in the free end of a traditional closure segment wavy steel web is adjusted to be a long-hole form so as to adapt to the condition that the hole positions are hard to align at due to uncertainty of the length of the closure segment, the hole forming mode is simple, the cost is low, on-site mounting is convenient, normal construction is not affected, the adjustable quantity is large, the adaptability is high, and accurate mounting of the closure segment wavy steel web is achieved.

The invention discloses an underground engineering polarization advance geological forecast wireless rapid acquisition system, including a support, a seal ring and a wireless acquisition and communication module. One side of the support is provided with a non-polarizing electrode, and the other side of the support is provided with a vacuum generation module used for adhering the support to a tunnel face. The seal ring is arranged on the surface of the tunnel face and used for supporting the support. The wireless acquisition and communication module is arranged on the support and comprises a wireless transmission module and a data acquisition module, and the data acquisition module is connected with the non-polarizing electrode. The rapid acquisition system provided by the invention controls electrode switching through wireless communication, so that manual changing of electrode is prevented, automatic control of detection electrode acquisition, transmission and switching is achieved, each electrode is acquired by each corresponding independent single-way acquisition module, the traditional sequential acquisition mode is improved, and the acquisition time is greatly shortened. The rapid acquisition system provided by the invention is advantaged in that the whole detection process is fast, the efficiency is high, detection can be immediately performed after installation and can be completed during each construction process gap in the tunnel, and normal construction cannot be influenced.

The invention discloses a full-line automatic scanning device for tunnel second lining quality detecting and method. The full-line automatic scanning device comprises an arc mounting frame having an arc structure, a moving mechanism, first tracks, an automatic scanning mechanism being able to move along the tracks, and an antenna clamping device. The arc mounting frame is installed by being in contact with the arc contour of a tunnel. The moving mechanism installed in the arc mounting frame can move along the arc mounting frame. The first tracks are installed at the moving mechanism along thetunnel axis direction. The antenna clamping device installed at the automatic scanning mechanism is used for clamping an antenna.

The invention discloses an integrated steel anchor pipe foundation structure of a highway guardrail and a sound barrier and a construction method thereof. A steel anchor pipe has the advantages of rapid construction and low cost construction, and the key is that the superior anchoring performance of the steel anchor pipe, which is deeply anchored in the ground, can provide large horizontal resistance for the guardrail and the sound barrier and ensure long-term safe use of an upper structure; and at the same time, the reinforcement of steel anchor pipe can improve the stability of subgrade slope. The construction method comprises the following construction methods of material preparation and manufacture, measuring and placing of steel anchor pipe pile positions, driving holes into steel pipes, preparing grouting liquid and working procedures, first grouting, embedding vertical ribs and installing grout sealing sheets and the like. The technology is mature, the working procedures are reasonable, the construction is carried out simultaneously with subgrade and pavement construction, and the construction method has the characteristics of rapid construction. A wide application prospectfor a road equipped with the guardrails and the sound barrier is achieved.