一、用途概述gtj-evd型动态变形模量测试仪(手持落锤弯沉仪)用于测定路基在动荷载作用下的弯沉值(evd),从而评估路基的承载力和变形量。适用于受动荷载作用的铁路、公路、机场、城市交通、港口、码头及工业与民用建筑的地基施工质量监控检测,特别适用于场地狭窄地段检测,如路桥(涵)过渡段及路肩的检测,既有线路基等。它能快速测出动态变形模量evd和地基系数k30。适用标准:中华人民共和国行业标准《铁路工程土工试验规程》(tb10102-2004)“evd 平板载荷试验”。 二、产品特点 1、采用进口传感器及部分元器件,测试精度高。 2、 液晶中文显示,在不同的界面下有相应的中文提示。 3、操作简单、测试速度快,检测一点只需三分钟。 4、 自动计算evd值,并显示曲线,准确直观。 5、主机与打印机分离,主机体积小、重量轻。安装携带方便,且不需外加附属设备。在路基的狭窄地段,如路桥过渡段、边坡附近检测也非常方便、适用。6、 传输232串行口和usb接口,便于与笔记本电脑的连接。 7、该仪器模拟列车高速行驶时对路基产生的冲击效应进行动态测试与静载试验相比,更能反映路基土的实际受力情况,测试数据数字显示且现场打印,确保测试结果准确、客观。8、 液晶屏幕带有背光,在各种环境下有较好的可视度。 9、 无核辐射及废气等污染,操作使用安全、环保。 三、 技术参数 1、适用及检测范围:符合现行规范的各类路基土及基床填料。(1)适用的土壤种类范围与k30平板载荷仪相同,即可用于不大于载荷板直径1/4的各类土和土石混合填料。(2)测试范围:10mpa(3)测试影响深度:0～500mm 2、 加载装置 (1)加载装置重:15kg,其中重锤重:10kg(2)最大冲击力:7.07kn (3)冲击力持续时间:18±2ms 3、 载荷板 重量:15kg,直径:300mm,厚度:20mm4、 沉陷测定仪 (1)沉陷测试范围:0.20mm～2.00mm (2)重量:5kg (3)电源:6节5号碱性电池5、环境温度范围:-20℃～40℃ 四、仪器构成 整套仪器由以下四部分构成 1.加载装置 2.荷载板 3.电子沉陷测定仪4.小型打印机五、附件 合格证 数据线 传输线 微型打印机 打印机充电器 英文版gtj-evd dynamicmodulus of resilience measuringinstrumentapplicationsgtj-evd dynamicmodulus of resilience measuring instrument (hand_hold drop-weighttester) is used to test the subgrade surface settlement under thedynamic pressure ,from which, the resilience and the bearingcapacity of the subgrade areevaluated. the test method is suitedfor quality control and detection of railway,road,airport,municipal traffic, port, dock and the foundation of industrial andcivil construction etc, this method is particularly applicable totesting in narrow places ,such as the changeover and linkageportion between road and brige. this instrument can measurethedynamic of resilience modulus (evd) and the soil coefficient(k30)rapidly.basis of standards: the people\'srepublic of china industry standards railway civil engineeringmeasuring regulation(tb10102-2004) ”evd plate pressuretest”.product features1: parts of elementsincluding sensor are imported from american, with high accuracy2:chinese language display, there is corresponding chinese tipsdisplay under different interface3: simple operation, rapid test,measuring one point only need 3 minutes4:automatic caculation ofthe evd, automatic display of curves, that are very accurate anddirectviewing5:electronic settlement measuring instrument is small,light, portable, easy-to-install, it is separate from printer,anddoesn’t need other accessory equipment. it’s convenient in narrowplaces 6:232 serial port and usb port can both transmit data,that’sconvenient fornotebook pc7:evd test simulates the impact when trainrunning on railway ,comparing to ev2, evd can reveal the realstress better. printing the data on the spot ensures the resultaccute and objective8:lcd with backlight, has good visibility inevery enviroment9:no nuclear radiation and exhaust pollution, safeand greenspecifications1: range of application andmensurement: all kinds of roadbed and bed stuff that correspondingwith current norm(1) scope of appropriate soil is same to k30 platepress instrument’s, that is the soil and the mixed_stuffing with amaximum grain size which is less than 1/4 of the plate diameter(2)mensuring range:10mpavd

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