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🥫 圆柱模板混凝土计算器（体积、袋数、多根）Sonotube Concrete Calculator (Volume, Bags, Several Tubes)
计算圆形纸管（Sonotube）柱墩的混凝土用量：输入直径、高度和数量（米或英寸/英尺），得出体积（m³、立方码、立方英尺、升），加损耗后的总量，以及需要多少袋 40/60/80 磅或 25 kg 预拌混凝土。本地处理。Works out concrete for round Sonotube piers: enter the diameter, height and number of tubes (metric or inches and feet) to get the volume in m³, cubic yards, cubic feet and litres, the total with waste, and how many 40, 60 or 80 lb or 25 kg bags of premix you need. Processed locally.
使用说明与常见问题How-to & FAQ
「圆柱模板混凝土计算器（体积、袋数、多根）」是什么？What is the Sonotube Concrete Calculator (Volume, Bags, Several Tubes) tool?
计算圆形纸管（Sonotube）柱墩的混凝土用量：输入直径、高度和数量（米或英寸/英尺），得出体积（m³、立方码、立方英尺、升），加损耗后的总量，以及需要多少袋 40/60/80 磅或 25 kg 预拌混凝土。本地处理。Works out concrete for round Sonotube piers: enter the diameter, height and number of tubes (metric or inches and feet) to get the volume in m³, cubic yards, cubic feet and litres, the total with waste, and how many 40, 60 or 80 lb or 25 kg bags of premix you need. Processed locally.
如何使用「圆柱模板混凝土计算器（体积、袋数、多根）」？How do I use the Sonotube Concrete Calculator (Volume, Bags, Several Tubes) tool?
在「圆柱模板混凝土计算器（体积、袋数、多根）」中，填写「单位」、「直径 m」、「高度 m」、「数量」、「损耗 %」等参数，结果会随输入实时计算并显示在下方。In the Sonotube Concrete Calculator (Volume, Bags, Several Tubes): Fill in "Units", "Diameter m", "Height m", "Number of tubes", "Waste %"; results are recalculated instantly as you type.
圆柱混凝土体积怎么算？How is the concrete volume found?
V = π × (直径 ÷ 2)² × 高度 × 根数。例如直径 0.3 m、高 3 m 的一根约 0.212 m³。V = π × (diameter ÷ 2)² × height × number of tubes. One tube 0.3 m wide and 3 m tall holds about 0.212 m³.
要买多少袋？How many bags do I need?
按每袋出方量换算：80 lb 袋约 0.6 ft³，60 lb 约 0.45 ft³，40 lb 约 0.3 ft³。一根 12 英寸 × 4 英尺的管约 3.14 ft³，需要 6 袋 80 lb。Divide by the bag yield: about 0.6 ft³ for 80 lb, 0.45 ft³ for 60 lb and 0.3 ft³ for 40 lb. A 12-inch × 4-foot tube is about 3.14 ft³, or 6 bags of 80 lb.
要加多少损耗？How much waste should I add?
一般加 5–10 %，用于溢洒、基坑底部超挖和管子变形。Usually 5–10 % for spillage, over-dug holes and tube bulging.
能举个计算实例吗？Can you show a worked example?
例如在「圆柱模板混凝土计算器（体积、袋数、多根）」中填 直径 m = 0.2，高度 m = 1，结果区显示：体积 m³：0.0314；升：31.4For example, entering Diameter m = 0.2, Height m = 1 in the Sonotube Concrete Calculator (Volume, Bags, Several Tubes) gives: Volume m³: 0.0314; Litres: 31.4
哪些输入会被检查？Which inputs are validated?
「圆柱模板混凝土计算器（体积、袋数、多根）」会检查这些输入——「直径 m」、「高度 m」：必须填写，须大于 0；「数量」：须为不小于 1 的整数（留空按 1）；「损耗 %」：须在 0–100 % 之间（留空按 0）；绝对值超过 10¹⁵ 的数也会被拒绝。不符合时结果区显示具体提示，不会给出数字。The Sonotube Concrete Calculator (Volume, Bags, Several Tubes) checks its inputs — "Diameter m", "Height m": required, must be greater than 0; "Number of tubes": must be a whole number of at least 1 (blank uses 1); "Waste %": must be 0–100 % (blank counts as 0); numbers above 10¹⁵ in absolute value are rejected too. When a value fails, the result area names the problem instead of showing a number.
有哪些选项可以调整？What options can I adjust?
「圆柱模板混凝土计算器（体积、袋数、多根）」的设置：「单位」可选 米、直径英寸、高度英尺（默认 米）；「直径 m」默认 0.3；「高度 m」默认 3；「数量」默认 1；「损耗 %」默认 0。每次生成结果都按当前设置处理。Settings in the Sonotube Concrete Calculator (Volume, Bags, Several Tubes) — "Units": Metres, Diameter in, height ft (default Metres); "Diameter m" default 0.3; "Height m" default 3; "Number of tubes" default 1; "Waste %" default 0. The result always uses the current settings.
计算结果可以用于作业或工程吗？Can I use the results for homework or engineering?
「圆柱模板混凝土计算器（体积、袋数、多根）」使用教科书标准公式（公式写在说明和常见问题中），适合学习和估算核对；涉及安全的工程设计请以规范和实测为准。The Sonotube Concrete Calculator (Volume, Bags, Several Tubes) uses standard textbook formulas (given in the description and FAQ), which is good for learning and checking estimates; for safety-critical engineering follow codes and measured values.
「圆柱模板混凝土计算器（体积、袋数、多根）」免费吗？需要注册吗？Is the Sonotube Concrete Calculator (Volume, Bags, Several Tubes) free? Do I need an account?
「圆柱模板混凝土计算器（体积、袋数、多根）」完全免费，无需注册或安装，打开网页即可使用，手机和电脑都能用；输入的内容只在你的浏览器本地处理。The Sonotube Concrete Calculator (Volume, Bags, Several Tubes) is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.