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轻型挡土墙设计方案哪位知道？

轻型挡土墙设计方案哪位知道？

浏览：25次 | 提问时间： 08-06 09:31

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苦衷 08-06 09:32

1、根据具体情况，通过技术和经济比较，确定墙址位置；2、测绘墙址处的纵向地面线，核对路基横断面图，收集墙址处的地质和水文等*；3、选择墙后填料，确定填料的物理力学计算参数和地基计算参数；undefined4、进行挡土墙断面型式、构造和材料设计，确定有关计算参数；5、进行挡土墙的纵向布置；、用计算法或套用标准图确定挡土墙的断面尺寸；7、绘制挡土墙立面、横断面和平面图。挡土墙墙身抗弯强度计算：1 按弹性计算；2 砌体为脆性材料，抗拉能力很差；3 应考虑竖向压力产生的压应力与弯曲拉应力的叠加；4 受拉一侧外缘真实应力

相依相偎 08-06 09:40

N/A-M/W，小于砌体抗拉能力既是安全的。第一节述能够保持结构物两侧的土体、物料有一定高差的结构称为支挡结构。支承路堤填土或山坡土体，防止填土或土体变形失稳，而承受侧向土压力的建筑物称为挡土墙。支挡结构在各种土建工程中得到广泛的应用，如铁路、公路工程中可以用于支承路堤或路堑边坡、隧道洞口、支承桥台台后填土，以减少土石方量和占地面积，防止水流冲刷路基，并经常用于整治坍方、滑坡等路基病害；水利、港湾工程中支挡河岸及水闸的岸墙；民用与工业筑中的地下连续墙等。随着大量土木工程在地形复杂地区的兴建，支挡结构愈加显得重要。支挡结构的设计将直接影响到工程的经济效益及安全。墙身靠填土（或山体）一侧称为墙背，大部分外露的一侧称为墙面（或墙胸），墙的顶面部分称为墙顶，墙的底面部分称为墙底，墙背与墙底的交线称为墙踵，墙面与墙底的交线称为墙趾。墙背与竖直面夹角称为墙背倾角，一般用表示，墙踵到墙顶的垂直距离称为墙高，用H表示。挡土墙的类型划分方法很多，根据墙体自身的刚度可将其分为柔性挡土墙和刚性挡土墙；根据挡土墙的结构形式可将其分为重力式（包括衡重式）挡土墙和轻型挡土墙；根据挡土墙在路基横断面上的位置可分为：路堑挡土墙、路肩挡土墙、路堤挡土墙、山坡挡土墙、抗滑挡土墙、站台挡土墙等；根据建筑材料可分为石、混凝土及钢筋混凝土挡土墙等；根据所处的环境条件可分为一般地区挡土墙、浸水地区挡土墙与地震地区挡土墙等。由于一些地区石料丰富，使得石砌重力式和衡重式挡土墙得到广泛应用。为适应不同地区的条件和发展新技术的需要，逐步发展了各种形式的挡土墙，如：悬臂式、扶臂式、板桩式、锚杆式、锚定板式、竖向预应力锚杆式、加筋土式和土钉

青柠茶 08-06 09:49

轻型挡土墙设计方案设计步骤一、确定墙高二、墙上荷载（主动土压力、墙上移动荷载、振动系数）三、墙体型式四、墙底基底承载力五、计算 1）抗倾覆计算（主动土压力+移动荷载*振动系数） 2）抗滑动计算（同上） 3）墙身水平截面强度验算 4）墙身垂直截面变位计算（截面应力校核）六、设计 1、根据具体情况，通过技术和经济比较，确定墙址位置； 2、测绘墙址处的纵向地面线，核对路基横断面图，收集墙址处的地质和水文等*； 3、选择墙后填料，确定填料的物理力学计算参数和地基计算参数； 4、进行挡土墙断面型式、构造和材料设计，确定有关计算参数； 5、进行挡土墙的纵向布置； 6、用计算法或套用标准图确定挡土墙的断面尺寸； 7、绘制挡土墙立面、横断面和平面图。挡土墙墙身抗弯强度计算： 1 按弹性计算； 2 砌体为脆性材料，抗拉能力很差； 3 应考虑竖向压力产生的压应力与弯曲拉应力的叠加； 4 受拉一侧外缘真实应力

perfect丨强者 08-06 09:57

N/A-M/W，小于砌体抗拉能力既是安全的

故意失忆 08-06 10:05

轻型挡土墙设计方案：鉴于拉筋带实际应用中的诸多不足之处，经多年工程实践及科研，提出一种可替代拉筋带的新型材料— —加筋环。加筋环作用机理加筋环的作业机理是充分利用钢筋受拉强度高的特性，使环内填料产生的侧向压力转由加筋环承担，加筋环内的填料在垂直荷载的作用下受到挤压并产生侧向膨胀，而加筋环约束了这种侧向变形，使侧向压力全部转化为由钢筋圆环来承担。辊筋环阻断了环内侧压力向环外的传递，使圆环内填料形成一个“饼”状物，若干层“土饼”交叉叠加后组成加筋土实体。加筋环受力分析加筋环在垂直均布荷载作用下的受力状态，与人们在土工实验室中所做的三轴试验相类似。测试环筋所承受的侧向压力有多大，只需粘贴电阻应变片即可，当填料高度不断上升时实测钢筋的拉伸变形并计算出拉应力，以此判断配筋是否合理，积累相当的实测*可供理论分析和研究，为设计提供依据。

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