摘要：【中文】本发明属于岩土工程技术领域，尤其涉及一种地下结构浮力测算方法。步骤如下：在试验箱体内布置地基土层，地基土层包括粗砂层和黏性土层；根据黏性土层中黏性土的液性指数I_L判定黏性土的状态，确定坡率；根据坡率，设计地下结构模块的结构为倒圆台体或倒梯形台体，所述地下结构模块的侧面与水平面之间的夹角α小于等于坡率的反正切函数；将地下结构模块放置在黏性土层中，地下结构模块的顶部通过反力梁与测力模块连接；向地基土层注入水，绘制垂向渗流曲线，计算侧向水压力F₄的值，并根据预先获得的地下结构模块的结构自重G，同时结合测力模块的测量数据得到地下结构模块所受地下水浮力。该方法能够消除侧向摩擦力，使地下结构浮力测算更加准确。 【EN】The invention belongs to the technical field of geotechnical engineering, and particularly relates to a method for measuring and calculating the buoyancy of an underground structure. The method comprises the following steps: arranging a foundation soil layer in the test box body, wherein the foundation soil layer comprises a coarse sand layer and a cohesive soil layer; according to the liquidity index I of cohesive soil in cohesive soil layer_LThe method comprises the steps of judging the state of cohesive soil, determining the slope rate, designing the structure of an underground structure module to be an inverted frustum or an inverted trapezoid frustum according to the slope rate, enabling the included angle α between the side face of the underground structure module and the horizontal plane to be smaller than or equal to the arc tangent function of the slope rate, placing the underground structure module in the cohesive soil layer, enabling the top of the underground structure module to be connected with a force measuring module through a counterforce beam, injecting water into the foundation soil layer, drawing a vertical seepage curve, and calculating the lateral water pressure F₄According to the pre-obtained structure dead weight G of the underground structure module, and combining the force measuring moduleThe measured data of the underground structure module obtains the underground water buoyancy force borne by the underground structure module. The method can eliminate the lateral friction force, so that the buoyancy measurement and calculation of the underground structure are more accurate.

摘要：【中文】本发明属于岩土工程技术领域，尤其涉及一种浮力模型试验装置。该装置包括试验箱体、地下结构单元和进水管；所述试验箱体的顶部敞口，内部设置有地基土层；所述地下结构单元设置在所述地基土层内部，且地下结构单元的顶部与试验箱体的顶部位于同一水平线；所述地下结构单元包括内桶和外侧套筒，所述内桶为顶部敞口的圆柱形桶体，所述外侧套筒为上下贯通的套设在所述内桶外部的套筒，所述外侧套筒与内桶之间有间隙；所述进水管设置在试验箱体的内部，沿试验箱体的高度方向垂向设置。该装置消除了侧壁受到的垂向应力，从而实现装置仅受到重力、浮力和底部土体的反力，测量结果更加准确。 【EN】The invention belongs to the technical field of geotechnical engineering, and particularly relates to a buoyancy model test device. The device comprises a test box body, an underground structure unit and a water inlet pipe; the top of the test box body is open, and a foundation soil layer is arranged inside the test box body; the underground structure unit is arranged inside the foundation soil layer, and the top of the underground structure unit and the top of the test box body are positioned on the same horizontal line; the underground structure unit comprises an inner barrel and an outer sleeve, the inner barrel is a cylindrical barrel body with an open top, the outer sleeve is a sleeve which is vertically penetrated and sleeved outside the inner barrel, and a gap is formed between the outer sleeve and the inner barrel; the inlet tube sets up in the inside of experimental box, along the vertical setting of direction of height of experimental box. The device eliminates the vertical stress on the side wall, so that the device is only subjected to the gravity, the buoyancy and the counter force of the bottom soil body, and the measuring result is more accurate.

摘要：【中文】本发明公开了一种三危驾驶行为监测与报警系统，包括三危驾驶监测器、组合仪表、T‑BOX及T‑BOX网络后台，所述三危驾驶监测器分别通过CAN总线连接组合仪表、T‑BOX，所述T‑BOX通过无线网络连接T‑BOX网络后台。所述三危驾驶监测器安装于车身前部位置，包括三轴加速度和计算单元，计算单元根据三轴加速度计监测的各方向的加速度大小，综合判断司机危险驾驶行为及危险等级。本发明的三危驾驶行为监测与报警系统，监测器内部集成的三轴加速度计，具有低功耗和高分辨率性能，灵敏度可达49mg，极大的提高了驾驶行为监测的精度与准确率；将报警数据传输至后台并形成分析报表，便于公交公司掌握公交司机驾驶情况，做出针对性管控。 【EN】The invention discloses a triple-risk driving behavior monitoring and alarming system which comprises a triple-risk driving monitor, a combination instrument, a T-BOX and a T-BOX network background, wherein the triple-risk driving monitor is respectively connected with the combination instrument and the T-BOX through CAN buses, and the T-BOX is connected with the T-BOX network background through a wireless network. The three-danger driving monitor is arranged at the front position of the vehicle body and comprises a three-axis acceleration and a calculation unit, and the calculation unit comprehensively judges dangerous driving behaviors and dangerous grades of a driver according to the acceleration in each direction monitored by a three-axis accelerometer. According to the three-risk driving behavior monitoring and alarming system, the three-axis accelerometer integrated in the monitor has low power consumption and high resolution performance, the sensitivity can reach 49mg, and the precision and accuracy of driving behavior monitoring are greatly improved; alarm data are transmitted to the background and analysis reports are formed, so that a public transport company can master the driving condition of a bus driver conveniently and make targeted management and control.