A shield-carried noncontact frequency-domain electrical real-time advanced detection system and method are provided. Noncontact electrodes are installed on a cutter head of a shield tunneling machine, current is emitted and received using capacitance coupling, the electrodes are connected to a host via a multi-way swivel joint, measured data is inversed and interpreted in real time, and the prediction result is transmitted to a control system of the shield tunneling machine so as to provide a technical support for safety construction of the shield tunneling machine; the noncontact electrodes are installed on the shield cutter head. Real-time advanced detection of geology in front of a tunnel face can be realized in the tunneling process, so that the requirement for quick tunneling construction is met, and the efficiency of advanced geological detection of the shield tunneling machine is improved; and an electrode system is only installed on the cutter head.

A hypergravity model test device for simulating a progressive failure of a shield tunnel face, including a model box, a shield tunnel model, a servo loading control system and a data acquisition system. The servo loading control system includes a servo motor, a planetary roller screw electric cylinder and a loading rod. The data acquisition system includes a displacement transducer, an axial force meter, a pore pressure transducer, an earth pressure transducer and an industrial camera. The servo loading control system is connected to an excavation plate through the loading rod to control the excavation plate to move back and forth along an axial direction of the shield tunnel model at a set speed to simulate failure of the shield tunnel face. A method for simulating a progressive failure of a shield tunnel face is also provided.

A hard rock tunnel boring machine combining microwave heating with high pressure water cutting for assisting in rock breaking includes a tunnel boring machine body, a microwave heating assisted rock breaking system and a high pressure water cutting assisted rock breaking system, wherein the microwave heating assisted rock breaking system is arranged on the tunnel boring machine body, and is used for heating and cracking a rock; and the high pressure water cutting assisted rock breaking system is arranged on the tunnel boring machine body, and is used for performing hydraulic cutting on the rock. A rock breaking sequence lies in that the microwave heating assisted rock breaking system is used for heating and cracking the rock, then the high pressure water cutting assisted rock breaking system is used for performing hydraulic cutting on the rock, and finally, the tunnel boring machine body is used for squeezing and breaking the rock.

The invention relates to a tunnel boring device for creating a bore from a starting point to a target point in the ground, along a predefined boring line by advancing the tunnel boring device in order to create a tunnel or for laying a pipeline in the ground using a boring tool to break up the ground; having at least one feed line for supplying a boring fluid to the boring tool; having at least one section, arranged at the rear of the boring tool, for receiving the ground which has been broken up and is present in the form of cuttings, wherein the region of the boring tool and the at least one section are essentially filled with boring fluid, and the boring fluid is provided in the region of the boring tool and within the at least one section with a pressure that essentially corresponds to the pressure in the ground at the heading face; having at least one pump for removing, from the section, the boring fluid mixed with the cuttings; having at least one conveying line for removing, from the bore, the boring fluid mixed with cuttings, this line being connected to the delivery side of the at least one pump, and wherein the at least one pump is connected to the at least one section via at least one suction line. In that context, it is provided that the pump is a jet pump which is connected to a drive line via which a driving fluid is supplied to the jet pump; that the at least one pump is arranged outside the at least one section; and that the at least one suction line contains at least one shutoff valve with which the suction line can be shut off.

The present invention discloses a centrifugal intelligent construction device for excavating concrete structure: a push-type excavation equipment, excavating rocks and soil, and collecting crushed stones, sand, soil, and water; a centrifugal screening equipment, performing centrifugal screening and classification collection on the collected crushed stones, sand, soil, and water; the intelligent batching equipment, which matches the classified crushed stones, sand, soil, and water according to their quality and fineness, adding cementitious materials, auxiliary materials, additives, and activators, and mixing them to obtain a mixed wet material; a centrifugal printing equipment, pumping and extruding the mixed wet materials, and using a centrifugal rotating outer cylinder to print and compact them into dense shape; an intelligent reinforcement equipment, integrating reinforcements between the layers of printed concrete strips by using the wall mounted laying, positioning and inserting reinforcements inside the printed concrete strips during the centrifugal printing process to form an integrated reinforced concrete structure. The device can achieve the additive and intelligent construction of closed concrete structures in underground, underwater, and extreme construction environments, solving the technical dilemma of insufficient engineering application scope of open additive manufacturing technology.

A tunnel boring apparatus includes a shield body and a cutting disc provided at a front portion of the shield body. The tunnel boring apparatus includes a high pressure liquid device, which includes a liquid storage tank for storing a predetermined amount of liquid, a pressure raising device for increasing a pressure of the liquid, and a plurality of nozzles. The pressing raising device is connected to the liquid storage tank, and to a central rotating head through a first guiding pipeline. The nozzles are provided on the cutting disc, and are connected to the central rotating head through a second guiding pipeline.

A tunnel boring apparatus includes a shield body and a cutting disc provided at a front portion of the shield body. The tunnel boring apparatus includes a high pressure liquid device, which includes a liquid storage tank for storing a predetermined amount of liquid, a pressure raising device for increasing a pressure of the liquid, and a plurality of nozzles. The pressing raising device is connected to the liquid storage tank, and to a central rotating head through a first guiding pipeline. The nozzles are provided on the cutting disc, and are connected to the central rotating head through a second guiding pipeline.

An energy device for shield machines disclosed by the application comprises: a trolley structure arranged behind the shield machine; a power management system arranged on the trolley structure and electrically connected with the shield machine main body; a solid-state energy cell arranged on the trolley structure; wherein, the solid-state energy cell is connected with the power management system and used for providing electric energy output; and an inverter system arranged between the power management system and the solid-state energy cell, wherein the inverter system is used for controlling the charging input or power supply output of the solid-state energy cell. The energy device for shield machines disclosed by the application is safe and environment-friendly, can replace the diesel generator as the emergency energy source of shield machines, provides stable power supply, and reduces the power consumption cost of the shield machine.

An energy device for shield machines disclosed by the application comprises: a trolley structure arranged behind the shield machine; a power management system arranged on the trolley structure and electrically connected with the shield machine main body; a solid-state energy cell arranged on the trolley structure; wherein, the solid-state energy cell is connected with the power management system and used for providing electric energy output; and an inverter system arranged between the power management system and the solid-state energy cell, wherein the inverter system is used for controlling the charging input or power supply output of the solid-state energy cell. The energy device for shield machines disclosed by the application is safe and environment-friendly, can replace the diesel generator as the emergency energy source of shield machines, provides stable power supply, and reduces the power consumption cost of the shield machine.

An excavation status monitoring system for a tunneling machine that includes a detecting portion mounted on a cutter head of the tunneling machine, including an accelerometer that detects a vibration or an acoustic sensor that detects a sound wave and a sound output portion that outputs a signal detected by the detecting portion as sound.